From dafebc5bb70303f0b5baf0b087cf4d9a64b5c7f0 Mon Sep 17 00:00:00 2001
From: marha <marha@users.sourceforge.net>
Date: Mon, 12 Sep 2011 11:27:51 +0200
Subject: Synchronised line endinge with release branch
---
libxcb/configure.ac | 564 ++---
libxcb/src/c_client.py | 4654 ++++++++++++++++++------------------
libxcb/src/xcb.h | 1014 ++++----
libxcb/src/xcb_auth.c | 746 +++---
libxcb/src/xcb_in.c | 1412 +++++------
libxcb/src/xcb_util.c | 972 ++++----
libxcb/src/xcbint.h | 416 ++--
libxcb/xcb-proto/src/sync.xml | 458 ++--
libxcb/xcb-proto/xcbgen/matcher.py | 226 +-
libxcb/xcb-proto/xcbgen/state.py | 332 +--
libxcb/xcb-proto/xcbgen/xtypes.py | 1264 +++++-----
11 files changed, 6029 insertions(+), 6029 deletions(-)
(limited to 'libxcb')
diff --git a/libxcb/configure.ac b/libxcb/configure.ac
index 52ec39cba..cba9dbdad 100644
--- a/libxcb/configure.ac
+++ b/libxcb/configure.ac
@@ -1,282 +1,282 @@
-# -*- Autoconf -*-
-# Process this file with autoconf to produce a configure script.
-
-AC_PREREQ(2.57)
-AC_INIT([libxcb],
- 1.7,
- [xcb@lists.freedesktop.org])
-AC_CONFIG_SRCDIR([xcb.pc.in])
-AM_INIT_AUTOMAKE([foreign dist-bzip2])
-m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
-
-AM_PATH_PYTHON([2.6])
-
-PKG_CHECK_MODULES(CHECK, [check >= 0.9.4], [HAVE_CHECK=yes], [HAVE_CHECK=no])
-AM_CONDITIONAL(HAVE_CHECK, test x$HAVE_CHECK = xyes)
-
-AC_CONFIG_HEADERS([src/config.h])
-
-AC_LIBTOOL_WIN32_DLL
-AC_PROG_LIBTOOL
-AC_PROG_CC
-
-AC_PATH_PROG(XSLTPROC, xsltproc, no)
-if test "$XSLTPROC" = "no"; then
- AC_MSG_ERROR([XCB requires xsltproc.])
-fi
-
-HTML_CHECK_RESULT=false
-if test x"$HAVE_CHECK" = xyes; then
- if test x"$XSLTPROC" != xno; then
- HTML_CHECK_RESULT=true
- fi
-fi
-AC_SUBST(HTML_CHECK_RESULT)
-
-# Checks for pkg-config packages
-PKG_CHECK_MODULES(XCBPROTO, xcb-proto >= 1.6)
-NEEDED="pthread-stubs xau >= 0.99.2"
-PKG_CHECK_MODULES(NEEDED, $NEEDED)
-
-have_xdmcp="no"
-PKG_CHECK_MODULES(XDMCP, xdmcp,
- AC_CHECK_LIB(Xdmcp, XdmcpWrap,
- [
- AC_DEFINE(HASXDMAUTH,1,[Has Wraphelp.c needed for XDM AUTH protocols])
- NEEDED="$NEEDED xdmcp"
- have_xdmcp="yes"
- ],
- [
- XDMCP_CFLAGS=
- XDMCP_LIBS=
- ], [$XDMCP_LIBS]),
- [AC_MSG_RESULT(no)])
-
-AC_SUBST(NEEDED)
-
-# Find the xcb-proto protocol descriptions
-AC_MSG_CHECKING(XCBPROTO_XCBINCLUDEDIR)
-XCBPROTO_XCBINCLUDEDIR=`$PKG_CONFIG --variable=xcbincludedir xcb-proto`
-AC_MSG_RESULT($XCBPROTO_XCBINCLUDEDIR)
-AC_SUBST(XCBPROTO_XCBINCLUDEDIR)
-
-# Find the xcb-proto version
-XCBPROTO_VERSION=`$PKG_CONFIG --modversion xcb-proto`
-AC_SUBST(XCBPROTO_VERSION)
-
-# Find the xcbgen Python package
-AC_MSG_CHECKING(XCBPROTO_XCBPYTHONDIR)
-XCBPROTO_XCBPYTHONDIR=`$PKG_CONFIG --variable=pythondir xcb-proto`
-AC_MSG_RESULT($XCBPROTO_XCBPYTHONDIR)
-AC_SUBST(XCBPROTO_XCBPYTHONDIR)
-
-AC_HEADER_STDC
-AC_SEARCH_LIBS(getaddrinfo, socket)
-AC_SEARCH_LIBS(connect, socket)
-
-have_win32="no"
-lt_enable_auto_import=""
-case $host_os in
-mingw*)
- have_win32="yes"
- lt_enable_auto_import="-Wl,--enable-auto-import"
- ;;
-linux*)
- AC_DEFINE([HAVE_ABSTRACT_SOCKETS], 1, [Define if your platform supports abstract sockets])
- ;;
-esac
-
-AC_SUBST(lt_enable_auto_import)
-AM_CONDITIONAL([XCB_HAVE_WIN32], [test "x${have_win32}" = "xyes"])
-
-dnl define buffer queue size
-AC_ARG_WITH([queue-size],
- AC_HELP_STRING([--with-queue-size=SIZE],
- [Set the XCB buffer queue size (default is 16384)]),
- [xcb_queue_buffer_size="$withval"],
- [xcb_queue_buffer_size=16384])
-AC_DEFINE_UNQUOTED(XCB_QUEUE_BUFFER_SIZE, [$xcb_queue_buffer_size],
- [XCB buffer queue size])
-
-dnl check for the sockaddr_un.sun_len member
-AC_CHECK_MEMBER([struct sockaddr_un.sun_len],
- [AC_DEFINE(HAVE_SOCKADDR_SUN_LEN,1,[Have the sockaddr_un.sun_len member.])],
- [],
- [ #include <sys/types.h>
- #include <sys/un.h>
- ])
-
-dnl check for support for Solaris Trusted Extensions
-AC_CHECK_HEADERS([tsol/label.h])
-AC_CHECK_FUNCS([is_system_labeled])
-
-xcbincludedir='${includedir}/xcb'
-AC_SUBST(xcbincludedir)
-
-if test "x$GCC" = xyes ; then
- CWARNFLAGS="-Wall -pedantic -Wpointer-arith \
- -Wstrict-prototypes -Wmissing-declarations -Wnested-externs"
-else
- AC_CHECK_DECL([__SUNPRO_C], [SUNCC="yes"], [SUNCC="no"])
- if test "x$SUNCC" = "xyes"; then
- CWARNFLAGS="-v"
- fi
-fi
-AC_SUBST(CWARNFLAGS)
-
-XCB_CHECK_VISIBILITY()
-
-# htmldir is not defined prior to autoconf 2.59c, so on earlier versions
-# set an equivalent value.
-AC_PREREQ([2.59c], [], [AC_SUBST([htmldir], [m4_ifset([AC_PACKAGE_TARNAME],
- ['${datadir}/doc/${PACKAGE_TARNAME}'],
- ['${datadir}/doc/${PACKAGE}'])
-])])
-
-XCB_CHECK_DOXYGEN()
-
-AC_CHECK_FUNC(getaddrinfo, [AC_DEFINE(HAVE_GETADDRINFO, 1, [getaddrinfo() function is available])], )
-
-case $host_os in
- # darwin through Snow Leopard has poll() but can't be used to poll character devices.
- darwin@<:@789@:>@*|darwin10*) ;;
- darwin*)
- _ac_xorg_macosx_version_min=""
- if echo $CPPFLAGS $CFLAGS | grep -q mmacosx-version-min ; then
- _ac_xorg_macosx_version_min=`echo $CPPFLAGS $CFLAGS | sed 's/^.*-mmacosx-version-min=\(@<:@^ @:>@*\).*$/\1/'`
- else
- _ac_xorg_macosx_version_min=$MACOSX_DEPLOYMENT_TARGET
- fi
- case $_ac_xorg_macosx_version_min in
- 10.@<:@0123456@:>@|10.@<:@0123456@:>@.*) ;;
- *)
- AC_CHECK_FUNC(poll, [AC_DEFINE(USE_POLL, 1, [poll() function is available])], )
- ;;
- esac
- unset _ac_xorg_macosx_version_min
- ;;
- *)
- AC_CHECK_FUNC(poll, [AC_DEFINE(USE_POLL, 1, [poll() function is available])], )
- ;;
-esac
-
-XCB_EXTENSION(Composite, "yes")
-XCB_EXTENSION(Damage, "yes")
-XCB_EXTENSION(DPMS, "yes")
-XCB_EXTENSION(DRI2, "yes")
-XCB_EXTENSION(GLX, "yes")
-XCB_EXTENSION(RandR, "yes")
-XCB_EXTENSION(Record, "yes")
-XCB_EXTENSION(Render, "yes")
-XCB_EXTENSION(Resource, "yes")
-XCB_EXTENSION(Screensaver, "yes")
-XCB_EXTENSION(Shape, "yes")
-XCB_EXTENSION(Shm, "yes")
-XCB_EXTENSION(Sync, "yes")
-XCB_EXTENSION(Xevie, "yes")
-XCB_EXTENSION(XFixes, "yes")
-XCB_EXTENSION(XFree86-DRI, "yes")
-XCB_EXTENSION(Xinerama, "yes")
-XCB_EXTENSION(XInput, "no")
-XCB_EXTENSION(XKB, "no")
-XCB_EXTENSION(Xprint, "yes")
-XCB_EXTENSION(SELinux, "no")
-XCB_EXTENSION(XTest, "yes")
-XCB_EXTENSION(Xv, "yes")
-XCB_EXTENSION(XvMC, "yes")
-
-AC_ARG_WITH(launchd, AS_HELP_STRING([--with-launchd], [Build with support for Apple's launchd (default: auto)]), [LAUNCHD=$withval], [LAUNCHD=auto])
-if test "x$LAUNCHD" = xauto; then
- unset LAUNCHD
- AC_CHECK_PROG(LAUNCHD, [launchd], [yes], [no], [$PATH$PATH_SEPARATOR/sbin])
-fi
-
-if test "x$LAUNCHD" = xyes ; then
- AC_DEFINE(HAVE_LAUNCHD, 1, [launchd support available])
-fi
-
-AC_CONFIG_FILES([
-Makefile
-doc/Makefile
-src/Makefile
-tests/Makefile
-])
-
-AC_CONFIG_FILES([
-xcb.pc
-xcb-composite.pc
-xcb-damage.pc
-xcb-dpms.pc
-xcb-dri2.pc
-xcb-glx.pc
-xcb-randr.pc
-xcb-record.pc
-xcb-render.pc
-xcb-res.pc
-xcb-screensaver.pc
-xcb-shape.pc
-xcb-shm.pc
-xcb-sync.pc
-xcb-xevie.pc
-xcb-xf86dri.pc
-xcb-xfixes.pc
-xcb-xinerama.pc
-xcb-xinput.pc
-xcb-xkb.pc
-xcb-xprint.pc
-xcb-xselinux.pc
-xcb-xtest.pc
-xcb-xv.pc
-xcb-xvmc.pc
-])
-
-AC_CONFIG_FILES([
-doc/xcb.doxygen
-])
-
-AC_OUTPUT
-
-dnl Configuration output
-
-echo ""
-echo " Package: ${PACKAGE_NAME} ${PACKAGE_VERSION}"
-echo ""
-echo " Configuration"
-echo " XDM support.........: ${have_xdmcp}"
-echo " Build unit tests....: ${HAVE_CHECK}"
-echo " XCB buffer size.....: ${xcb_queue_buffer_size}"
-echo ""
-echo " X11 extensions"
-echo " Composite...........: ${BUILD_COMPOSITE}"
-echo " Damage..............: ${BUILD_DAMAGE}"
-echo " Dpms................: ${BUILD_DPMS}"
-echo " Dri2................: ${BUILD_DRI2}"
-echo " Glx.................: ${BUILD_GLX}"
-echo " Randr...............: ${BUILD_RANDR}"
-echo " Record..............: ${BUILD_RECORD}"
-echo " Render..............: ${BUILD_RENDER}"
-echo " Resource............: ${BUILD_RESOURCE}"
-echo " Screensaver.........: ${BUILD_SCREENSAVER}"
-echo " selinux.............: ${BUILD_SELINUX}"
-echo " Shape...............: ${BUILD_SHAPE}"
-echo " Shm.................: ${BUILD_SHM}"
-echo " Sync................: ${BUILD_SYNC}"
-echo " Xevie...............: ${BUILD_XEVIE}"
-echo " Xfixes..............: ${BUILD_XFIXES}"
-echo " Xfree86-dri.........: ${BUILD_XFREE86_DRI}"
-echo " xinerama............: ${BUILD_XINERAMA}"
-echo " xinput..............: ${BUILD_XINPUT}"
-echo " xkb.................: ${BUILD_XKB}"
-echo " xprint..............: ${BUILD_XPRINT}"
-echo " xtest...............: ${BUILD_XTEST}"
-echo " xv..................: ${BUILD_XV}"
-echo " xvmc................: ${BUILD_XVMC}"
-echo ""
-echo " Used CFLAGS:"
-echo " CPPFLAGS............: ${CPPFLAGS}"
-echo " CFLAGS..............: ${CFLAGS}"
-echo " Warning CFLAGS......: ${CWARNFLAGS}"
-echo ""
-echo " Installation:"
-echo " Prefix..............: ${prefix}"
-echo ""
+# -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ(2.57)
+AC_INIT([libxcb],
+ 1.7,
+ [xcb@lists.freedesktop.org])
+AC_CONFIG_SRCDIR([xcb.pc.in])
+AM_INIT_AUTOMAKE([foreign dist-bzip2])
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+
+AM_PATH_PYTHON([2.6])
+
+PKG_CHECK_MODULES(CHECK, [check >= 0.9.4], [HAVE_CHECK=yes], [HAVE_CHECK=no])
+AM_CONDITIONAL(HAVE_CHECK, test x$HAVE_CHECK = xyes)
+
+AC_CONFIG_HEADERS([src/config.h])
+
+AC_LIBTOOL_WIN32_DLL
+AC_PROG_LIBTOOL
+AC_PROG_CC
+
+AC_PATH_PROG(XSLTPROC, xsltproc, no)
+if test "$XSLTPROC" = "no"; then
+ AC_MSG_ERROR([XCB requires xsltproc.])
+fi
+
+HTML_CHECK_RESULT=false
+if test x"$HAVE_CHECK" = xyes; then
+ if test x"$XSLTPROC" != xno; then
+ HTML_CHECK_RESULT=true
+ fi
+fi
+AC_SUBST(HTML_CHECK_RESULT)
+
+# Checks for pkg-config packages
+PKG_CHECK_MODULES(XCBPROTO, xcb-proto >= 1.6)
+NEEDED="pthread-stubs xau >= 0.99.2"
+PKG_CHECK_MODULES(NEEDED, $NEEDED)
+
+have_xdmcp="no"
+PKG_CHECK_MODULES(XDMCP, xdmcp,
+ AC_CHECK_LIB(Xdmcp, XdmcpWrap,
+ [
+ AC_DEFINE(HASXDMAUTH,1,[Has Wraphelp.c needed for XDM AUTH protocols])
+ NEEDED="$NEEDED xdmcp"
+ have_xdmcp="yes"
+ ],
+ [
+ XDMCP_CFLAGS=
+ XDMCP_LIBS=
+ ], [$XDMCP_LIBS]),
+ [AC_MSG_RESULT(no)])
+
+AC_SUBST(NEEDED)
+
+# Find the xcb-proto protocol descriptions
+AC_MSG_CHECKING(XCBPROTO_XCBINCLUDEDIR)
+XCBPROTO_XCBINCLUDEDIR=`$PKG_CONFIG --variable=xcbincludedir xcb-proto`
+AC_MSG_RESULT($XCBPROTO_XCBINCLUDEDIR)
+AC_SUBST(XCBPROTO_XCBINCLUDEDIR)
+
+# Find the xcb-proto version
+XCBPROTO_VERSION=`$PKG_CONFIG --modversion xcb-proto`
+AC_SUBST(XCBPROTO_VERSION)
+
+# Find the xcbgen Python package
+AC_MSG_CHECKING(XCBPROTO_XCBPYTHONDIR)
+XCBPROTO_XCBPYTHONDIR=`$PKG_CONFIG --variable=pythondir xcb-proto`
+AC_MSG_RESULT($XCBPROTO_XCBPYTHONDIR)
+AC_SUBST(XCBPROTO_XCBPYTHONDIR)
+
+AC_HEADER_STDC
+AC_SEARCH_LIBS(getaddrinfo, socket)
+AC_SEARCH_LIBS(connect, socket)
+
+have_win32="no"
+lt_enable_auto_import=""
+case $host_os in
+mingw*)
+ have_win32="yes"
+ lt_enable_auto_import="-Wl,--enable-auto-import"
+ ;;
+linux*)
+ AC_DEFINE([HAVE_ABSTRACT_SOCKETS], 1, [Define if your platform supports abstract sockets])
+ ;;
+esac
+
+AC_SUBST(lt_enable_auto_import)
+AM_CONDITIONAL([XCB_HAVE_WIN32], [test "x${have_win32}" = "xyes"])
+
+dnl define buffer queue size
+AC_ARG_WITH([queue-size],
+ AC_HELP_STRING([--with-queue-size=SIZE],
+ [Set the XCB buffer queue size (default is 16384)]),
+ [xcb_queue_buffer_size="$withval"],
+ [xcb_queue_buffer_size=16384])
+AC_DEFINE_UNQUOTED(XCB_QUEUE_BUFFER_SIZE, [$xcb_queue_buffer_size],
+ [XCB buffer queue size])
+
+dnl check for the sockaddr_un.sun_len member
+AC_CHECK_MEMBER([struct sockaddr_un.sun_len],
+ [AC_DEFINE(HAVE_SOCKADDR_SUN_LEN,1,[Have the sockaddr_un.sun_len member.])],
+ [],
+ [ #include <sys/types.h>
+ #include <sys/un.h>
+ ])
+
+dnl check for support for Solaris Trusted Extensions
+AC_CHECK_HEADERS([tsol/label.h])
+AC_CHECK_FUNCS([is_system_labeled])
+
+xcbincludedir='${includedir}/xcb'
+AC_SUBST(xcbincludedir)
+
+if test "x$GCC" = xyes ; then
+ CWARNFLAGS="-Wall -pedantic -Wpointer-arith \
+ -Wstrict-prototypes -Wmissing-declarations -Wnested-externs"
+else
+ AC_CHECK_DECL([__SUNPRO_C], [SUNCC="yes"], [SUNCC="no"])
+ if test "x$SUNCC" = "xyes"; then
+ CWARNFLAGS="-v"
+ fi
+fi
+AC_SUBST(CWARNFLAGS)
+
+XCB_CHECK_VISIBILITY()
+
+# htmldir is not defined prior to autoconf 2.59c, so on earlier versions
+# set an equivalent value.
+AC_PREREQ([2.59c], [], [AC_SUBST([htmldir], [m4_ifset([AC_PACKAGE_TARNAME],
+ ['${datadir}/doc/${PACKAGE_TARNAME}'],
+ ['${datadir}/doc/${PACKAGE}'])
+])])
+
+XCB_CHECK_DOXYGEN()
+
+AC_CHECK_FUNC(getaddrinfo, [AC_DEFINE(HAVE_GETADDRINFO, 1, [getaddrinfo() function is available])], )
+
+case $host_os in
+ # darwin through Snow Leopard has poll() but can't be used to poll character devices.
+ darwin@<:@789@:>@*|darwin10*) ;;
+ darwin*)
+ _ac_xorg_macosx_version_min=""
+ if echo $CPPFLAGS $CFLAGS | grep -q mmacosx-version-min ; then
+ _ac_xorg_macosx_version_min=`echo $CPPFLAGS $CFLAGS | sed 's/^.*-mmacosx-version-min=\(@<:@^ @:>@*\).*$/\1/'`
+ else
+ _ac_xorg_macosx_version_min=$MACOSX_DEPLOYMENT_TARGET
+ fi
+ case $_ac_xorg_macosx_version_min in
+ 10.@<:@0123456@:>@|10.@<:@0123456@:>@.*) ;;
+ *)
+ AC_CHECK_FUNC(poll, [AC_DEFINE(USE_POLL, 1, [poll() function is available])], )
+ ;;
+ esac
+ unset _ac_xorg_macosx_version_min
+ ;;
+ *)
+ AC_CHECK_FUNC(poll, [AC_DEFINE(USE_POLL, 1, [poll() function is available])], )
+ ;;
+esac
+
+XCB_EXTENSION(Composite, "yes")
+XCB_EXTENSION(Damage, "yes")
+XCB_EXTENSION(DPMS, "yes")
+XCB_EXTENSION(DRI2, "yes")
+XCB_EXTENSION(GLX, "yes")
+XCB_EXTENSION(RandR, "yes")
+XCB_EXTENSION(Record, "yes")
+XCB_EXTENSION(Render, "yes")
+XCB_EXTENSION(Resource, "yes")
+XCB_EXTENSION(Screensaver, "yes")
+XCB_EXTENSION(Shape, "yes")
+XCB_EXTENSION(Shm, "yes")
+XCB_EXTENSION(Sync, "yes")
+XCB_EXTENSION(Xevie, "yes")
+XCB_EXTENSION(XFixes, "yes")
+XCB_EXTENSION(XFree86-DRI, "yes")
+XCB_EXTENSION(Xinerama, "yes")
+XCB_EXTENSION(XInput, "no")
+XCB_EXTENSION(XKB, "no")
+XCB_EXTENSION(Xprint, "yes")
+XCB_EXTENSION(SELinux, "no")
+XCB_EXTENSION(XTest, "yes")
+XCB_EXTENSION(Xv, "yes")
+XCB_EXTENSION(XvMC, "yes")
+
+AC_ARG_WITH(launchd, AS_HELP_STRING([--with-launchd], [Build with support for Apple's launchd (default: auto)]), [LAUNCHD=$withval], [LAUNCHD=auto])
+if test "x$LAUNCHD" = xauto; then
+ unset LAUNCHD
+ AC_CHECK_PROG(LAUNCHD, [launchd], [yes], [no], [$PATH$PATH_SEPARATOR/sbin])
+fi
+
+if test "x$LAUNCHD" = xyes ; then
+ AC_DEFINE(HAVE_LAUNCHD, 1, [launchd support available])
+fi
+
+AC_CONFIG_FILES([
+Makefile
+doc/Makefile
+src/Makefile
+tests/Makefile
+])
+
+AC_CONFIG_FILES([
+xcb.pc
+xcb-composite.pc
+xcb-damage.pc
+xcb-dpms.pc
+xcb-dri2.pc
+xcb-glx.pc
+xcb-randr.pc
+xcb-record.pc
+xcb-render.pc
+xcb-res.pc
+xcb-screensaver.pc
+xcb-shape.pc
+xcb-shm.pc
+xcb-sync.pc
+xcb-xevie.pc
+xcb-xf86dri.pc
+xcb-xfixes.pc
+xcb-xinerama.pc
+xcb-xinput.pc
+xcb-xkb.pc
+xcb-xprint.pc
+xcb-xselinux.pc
+xcb-xtest.pc
+xcb-xv.pc
+xcb-xvmc.pc
+])
+
+AC_CONFIG_FILES([
+doc/xcb.doxygen
+])
+
+AC_OUTPUT
+
+dnl Configuration output
+
+echo ""
+echo " Package: ${PACKAGE_NAME} ${PACKAGE_VERSION}"
+echo ""
+echo " Configuration"
+echo " XDM support.........: ${have_xdmcp}"
+echo " Build unit tests....: ${HAVE_CHECK}"
+echo " XCB buffer size.....: ${xcb_queue_buffer_size}"
+echo ""
+echo " X11 extensions"
+echo " Composite...........: ${BUILD_COMPOSITE}"
+echo " Damage..............: ${BUILD_DAMAGE}"
+echo " Dpms................: ${BUILD_DPMS}"
+echo " Dri2................: ${BUILD_DRI2}"
+echo " Glx.................: ${BUILD_GLX}"
+echo " Randr...............: ${BUILD_RANDR}"
+echo " Record..............: ${BUILD_RECORD}"
+echo " Render..............: ${BUILD_RENDER}"
+echo " Resource............: ${BUILD_RESOURCE}"
+echo " Screensaver.........: ${BUILD_SCREENSAVER}"
+echo " selinux.............: ${BUILD_SELINUX}"
+echo " Shape...............: ${BUILD_SHAPE}"
+echo " Shm.................: ${BUILD_SHM}"
+echo " Sync................: ${BUILD_SYNC}"
+echo " Xevie...............: ${BUILD_XEVIE}"
+echo " Xfixes..............: ${BUILD_XFIXES}"
+echo " Xfree86-dri.........: ${BUILD_XFREE86_DRI}"
+echo " xinerama............: ${BUILD_XINERAMA}"
+echo " xinput..............: ${BUILD_XINPUT}"
+echo " xkb.................: ${BUILD_XKB}"
+echo " xprint..............: ${BUILD_XPRINT}"
+echo " xtest...............: ${BUILD_XTEST}"
+echo " xv..................: ${BUILD_XV}"
+echo " xvmc................: ${BUILD_XVMC}"
+echo ""
+echo " Used CFLAGS:"
+echo " CPPFLAGS............: ${CPPFLAGS}"
+echo " CFLAGS..............: ${CFLAGS}"
+echo " Warning CFLAGS......: ${CWARNFLAGS}"
+echo ""
+echo " Installation:"
+echo " Prefix..............: ${prefix}"
+echo ""
diff --git a/libxcb/src/c_client.py b/libxcb/src/c_client.py
index 321344190..0f9974899 100644
--- a/libxcb/src/c_client.py
+++ b/libxcb/src/c_client.py
@@ -1,2327 +1,2327 @@
-#!/usr/bin/env python
-from xml.etree.cElementTree import *
-from os.path import basename
-from functools import reduce
-import getopt
-import sys
-import re
-
-# Jump to the bottom of this file for the main routine
-
-# Some hacks to make the API more readable, and to keep backwards compability
-_cname_re = re.compile('([A-Z0-9][a-z]+|[A-Z0-9]+(?![a-z])|[a-z]+)')
-_cname_special_cases = {'DECnet':'decnet'}
-
-_extension_special_cases = ['XPrint', 'XCMisc', 'BigRequests']
-
-_cplusplus_annoyances = {'class' : '_class',
- 'new' : '_new',
- 'delete': '_delete'}
-_c_keywords = {'default' : '_default'}
-
-_hlines = []
-_hlevel = 0
-_clines = []
-_clevel = 0
-_ns = None
-
-# global variable to keep track of serializers and
-# switch data types due to weird dependencies
-finished_serializers = []
-finished_sizeof = []
-finished_switch = []
-
-def _h(fmt, *args):
- '''
- Writes the given line to the header file.
- '''
- _hlines[_hlevel].append(fmt % args)
-
-def _c(fmt, *args):
- '''
- Writes the given line to the source file.
- '''
- _clines[_clevel].append(fmt % args)
-
-def _hc(fmt, *args):
- '''
- Writes the given line to both the header and source files.
- '''
- _h(fmt, *args)
- _c(fmt, *args)
-
-# XXX See if this level thing is really necessary.
-def _h_setlevel(idx):
- '''
- Changes the array that header lines are written to.
- Supports writing different sections of the header file.
- '''
- global _hlevel
- while len(_hlines) <= idx:
- _hlines.append([])
- _hlevel = idx
-
-def _c_setlevel(idx):
- '''
- Changes the array that source lines are written to.
- Supports writing to different sections of the source file.
- '''
- global _clevel
- while len(_clines) <= idx:
- _clines.append([])
- _clevel = idx
-
-def _n_item(str):
- '''
- Does C-name conversion on a single string fragment.
- Uses a regexp with some hard-coded special cases.
- '''
- if str in _cname_special_cases:
- return _cname_special_cases[str]
- else:
- split = _cname_re.finditer(str)
- name_parts = [match.group(0) for match in split]
- return '_'.join(name_parts)
-
-def _cpp(str):
- '''
- Checks for certain C++ reserved words and fixes them.
- '''
- if str in _cplusplus_annoyances:
- return _cplusplus_annoyances[str]
- elif str in _c_keywords:
- return _c_keywords[str]
- else:
- return str
-
-def _ext(str):
- '''
- Does C-name conversion on an extension name.
- Has some additional special cases on top of _n_item.
- '''
- if str in _extension_special_cases:
- return _n_item(str).lower()
- else:
- return str.lower()
-
-def _n(list):
- '''
- Does C-name conversion on a tuple of strings.
- Different behavior depending on length of tuple, extension/not extension, etc.
- Basically C-name converts the individual pieces, then joins with underscores.
- '''
- if len(list) == 1:
- parts = list
- elif len(list) == 2:
- parts = [list[0], _n_item(list[1])]
- elif _ns.is_ext:
- parts = [list[0], _ext(list[1])] + [_n_item(i) for i in list[2:]]
- else:
- parts = [list[0]] + [_n_item(i) for i in list[1:]]
- return '_'.join(parts).lower()
-
-def _t(list):
- '''
- Does C-name conversion on a tuple of strings representing a type.
- Same as _n but adds a "_t" on the end.
- '''
- if len(list) == 1:
- parts = list
- elif len(list) == 2:
- parts = [list[0], _n_item(list[1]), 't']
- elif _ns.is_ext:
- parts = [list[0], _ext(list[1])] + [_n_item(i) for i in list[2:]] + ['t']
- else:
- parts = [list[0]] + [_n_item(i) for i in list[1:]] + ['t']
- return '_'.join(parts).lower()
-
-
-def c_open(self):
- '''
- Exported function that handles module open.
- Opens the files and writes out the auto-generated comment, header file includes, etc.
- '''
- global _ns
- _ns = self.namespace
- _ns.c_ext_global_name = _n(_ns.prefix + ('id',))
-
- # Build the type-name collision avoidance table used by c_enum
- build_collision_table()
-
- _h_setlevel(0)
- _c_setlevel(0)
-
- _hc('/*')
- _hc(' * This file generated automatically from %s by c_client.py.', _ns.file)
- _hc(' * Edit at your peril.')
- _hc(' */')
- _hc('')
-
- _h('/**')
- _h(' * @defgroup XCB_%s_API XCB %s API', _ns.ext_name, _ns.ext_name)
- _h(' * @brief %s XCB Protocol Implementation.', _ns.ext_name)
- _h(' * @{')
- _h(' **/')
- _h('')
- _h('#ifndef __%s_H', _ns.header.upper())
- _h('#define __%s_H', _ns.header.upper())
- _h('')
- _h('#include "xcb.h"')
-
- _c('#include <stdlib.h>')
- _c('#include <string.h>')
- _c('#include <assert.h>')
- _c('#include <stddef.h> /* for offsetof() */')
- _c('#include "xcbext.h"')
- _c('#include "%s.h"', _ns.header)
- _c('#include <X11/Xtrans/Xtrans.h>')
-
- _c('')
- _c('#define ALIGNOF(type) offsetof(struct { char dummy; type member; }, member)')
-
- if _ns.is_ext:
- for (n, h) in self.imports:
- _hc('#include "%s.h"', h)
-
- _h('')
- _h('#ifdef __cplusplus')
- _h('extern "C" {')
- _h('#endif')
-
- if _ns.is_ext:
- _h('')
- _h('#define XCB_%s_MAJOR_VERSION %s', _ns.ext_name.upper(), _ns.major_version)
- _h('#define XCB_%s_MINOR_VERSION %s', _ns.ext_name.upper(), _ns.minor_version)
- _h(' ') #XXX
- _h('extern xcb_extension_t %s;', _ns.c_ext_global_name)
-
- _c('')
- _c('xcb_extension_t %s = { "%s", 0 };', _ns.c_ext_global_name, _ns.ext_xname)
-
-def c_close(self):
- '''
- Exported function that handles module close.
- Writes out all the stored content lines, then closes the files.
- '''
- _h_setlevel(2)
- _c_setlevel(2)
- _hc('')
-
- _h('')
- _h('#ifdef __cplusplus')
- _h('}')
- _h('#endif')
-
- _h('')
- _h('#endif')
- _h('')
- _h('/**')
- _h(' * @}')
- _h(' */')
-
- # Write header file
- hfile = open('%s.h' % _ns.header, 'w')
- for list in _hlines:
- for line in list:
- hfile.write(line)
- hfile.write('\n')
- hfile.close()
-
- # Write source file
- cfile = open('%s.c' % _ns.header, 'w')
- for list in _clines:
- for line in list:
- cfile.write(line)
- cfile.write('\n')
- cfile.close()
-
-def build_collision_table():
- global namecount
- namecount = {}
-
- for v in module.types.values():
- name = _t(v[0])
- namecount[name] = (namecount.get(name) or 0) + 1
-
-def c_enum(self, name):
- '''
- Exported function that handles enum declarations.
- '''
-
- tname = _t(name)
- if namecount[tname] > 1:
- tname = _t(name + ('enum',))
-
- _h_setlevel(0)
- _h('')
- _h('typedef enum %s {', tname)
-
- count = len(self.values)
-
- for (enam, eval) in self.values:
- count = count - 1
- equals = ' = ' if eval != '' else ''
- comma = ',' if count > 0 else ''
- _h(' %s%s%s%s', _n(name + (enam,)).upper(), equals, eval, comma)
-
- _h('} %s;', tname)
-
-def _c_type_setup(self, name, postfix):
- '''
- Sets up all the C-related state by adding additional data fields to
- all Field and Type objects. Here is where we figure out most of our
- variable and function names.
-
- Recurses into child fields and list member types.
- '''
- # Do all the various names in advance
- self.c_type = _t(name + postfix)
- self.c_wiretype = 'char' if self.c_type == 'void' else self.c_type
-
- self.c_iterator_type = _t(name + ('iterator',))
- self.c_next_name = _n(name + ('next',))
- self.c_end_name = _n(name + ('end',))
-
- self.c_request_name = _n(name)
- self.c_checked_name = _n(name + ('checked',))
- self.c_unchecked_name = _n(name + ('unchecked',))
- self.c_reply_name = _n(name + ('reply',))
- self.c_reply_type = _t(name + ('reply',))
- self.c_cookie_type = _t(name + ('cookie',))
-
- self.need_aux = False
- self.need_serialize = False
- self.need_sizeof = False
-
- self.c_aux_name = _n(name + ('aux',))
- self.c_aux_checked_name = _n(name + ('aux', 'checked'))
- self.c_aux_unchecked_name = _n(name + ('aux', 'unchecked'))
- self.c_serialize_name = _n(name + ('serialize',))
- self.c_unserialize_name = _n(name + ('unserialize',))
- self.c_unpack_name = _n(name + ('unpack',))
- self.c_sizeof_name = _n(name + ('sizeof',))
-
- # special case: structs where variable size fields are followed by fixed size fields
- self.var_followed_by_fixed_fields = False
-
- if self.is_switch:
- self.need_serialize = True
- self.c_container = 'struct'
- for bitcase in self.bitcases:
- bitcase.c_field_name = _cpp(bitcase.field_name)
- bitcase_name = bitcase.field_type if bitcase.type.has_name else name
- _c_type_setup(bitcase.type, bitcase_name, ())
-
- elif self.is_container:
-
- self.c_container = 'union' if self.is_union else 'struct'
- prev_varsized_field = None
- prev_varsized_offset = 0
- first_field_after_varsized = None
-
- for field in self.fields:
- _c_type_setup(field.type, field.field_type, ())
- if field.type.is_list:
- _c_type_setup(field.type.member, field.field_type, ())
- if (field.type.nmemb is None):
- self.need_sizeof = True
-
- field.c_field_type = _t(field.field_type)
- field.c_field_const_type = ('' if field.type.nmemb == 1 else 'const ') + field.c_field_type
- field.c_field_name = _cpp(field.field_name)
- field.c_subscript = '[%d]' % field.type.nmemb if (field.type.nmemb and field.type.nmemb > 1) else ''
- field.c_pointer = ' ' if field.type.nmemb == 1 else '*'
-
- # correct the c_pointer field for variable size non-list types
- if not field.type.fixed_size() and field.c_pointer == ' ':
- field.c_pointer = '*'
- if field.type.is_list and not field.type.member.fixed_size():
- field.c_pointer = '*'
-
- if field.type.is_switch:
- field.c_pointer = '*'
- field.c_field_const_type = 'const ' + field.c_field_type
- self.need_aux = True
- elif not field.type.fixed_size() and not field.type.is_bitcase:
- self.need_sizeof = True
-
- field.c_iterator_type = _t(field.field_type + ('iterator',)) # xcb_fieldtype_iterator_t
- field.c_iterator_name = _n(name + (field.field_name, 'iterator')) # xcb_container_field_iterator
- field.c_accessor_name = _n(name + (field.field_name,)) # xcb_container_field
- field.c_length_name = _n(name + (field.field_name, 'length')) # xcb_container_field_length
- field.c_end_name = _n(name + (field.field_name, 'end')) # xcb_container_field_end
-
- field.prev_varsized_field = prev_varsized_field
- field.prev_varsized_offset = prev_varsized_offset
-
- if prev_varsized_offset == 0:
- first_field_after_varsized = field
- field.first_field_after_varsized = first_field_after_varsized
-
- if field.type.fixed_size():
- prev_varsized_offset += field.type.size
- # special case: intermixed fixed and variable size fields
- if prev_varsized_field is not None and not field.type.is_pad and field.wire:
- if not self.is_union:
- self.need_serialize = True
- self.var_followed_by_fixed_fields = True
- else:
- self.last_varsized_field = field
- prev_varsized_field = field
- prev_varsized_offset = 0
-
- if self.var_followed_by_fixed_fields:
- if field.type.fixed_size():
- field.prev_varsized_field = None
-
- if self.need_serialize:
- # when _unserialize() is wanted, create _sizeof() as well for consistency reasons
- self.need_sizeof = True
-
- # as switch does never appear at toplevel,
- # continue here with type construction
- if self.is_switch:
- if self.c_type not in finished_switch:
- finished_switch.append(self.c_type)
- # special: switch C structs get pointer fields for variable-sized members
- _c_complex(self)
- for bitcase in self.bitcases:
- bitcase_name = bitcase.type.name if bitcase.type.has_name else name
- _c_accessors(bitcase.type, bitcase_name, bitcase_name)
- # no list with switch as element, so no call to
- # _c_iterator(field.type, field_name) necessary
-
- if not self.is_bitcase:
- if self.need_serialize:
- if self.c_serialize_name not in finished_serializers:
- finished_serializers.append(self.c_serialize_name)
- _c_serialize('serialize', self)
-
- # _unpack() and _unserialize() are only needed for special cases:
- # switch -> unpack
- # special cases -> unserialize
- if self.is_switch or self.var_followed_by_fixed_fields:
- _c_serialize('unserialize', self)
-
- if self.need_sizeof:
- if self.c_sizeof_name not in finished_sizeof:
- if not module.namespace.is_ext or self.name[:2] == module.namespace.prefix:
- finished_sizeof.append(self.c_sizeof_name)
- _c_serialize('sizeof', self)
-# _c_type_setup()
-
-def _c_helper_absolute_name(prefix, field=None):
- """
- turn prefix, which is a list of tuples (name, separator, Type obj) into a string
- representing a valid name in C (based on the context)
- if field is not None, append the field name as well
- """
- prefix_str = ''
- for name, sep, obj in prefix:
- prefix_str += name
- if '' == sep:
- sep = '->'
- if ((obj.is_bitcase and obj.has_name) or # named bitcase
- (obj.is_switch and len(obj.parents)>1)):
- sep = '.'
- prefix_str += sep
- if field is not None:
- prefix_str += _cpp(field.field_name)
- return prefix_str
-# _c_absolute_name
-
-def _c_helper_field_mapping(complex_type, prefix, flat=False):
- """
- generate absolute names, based on prefix, for all fields starting from complex_type
- if flat == True, nested complex types are not taken into account
- """
- all_fields = {}
- if complex_type.is_switch:
- for b in complex_type.bitcases:
- if b.type.has_name:
- switch_name, switch_sep, switch_type = prefix[-1]
- bitcase_prefix = prefix + [(b.type.name[-1], '.', b.type)]
- else:
- bitcase_prefix = prefix
-
- if (True==flat and not b.type.has_name) or False==flat:
- all_fields.update(_c_helper_field_mapping(b.type, bitcase_prefix, flat))
- else:
- for f in complex_type.fields:
- fname = _c_helper_absolute_name(prefix, f)
- if f.field_name in all_fields:
- raise Exception("field name %s has been registered before" % f.field_name)
-
- all_fields[f.field_name] = (fname, f)
- if f.type.is_container and flat==False:
- if f.type.is_bitcase and not f.type.has_name:
- new_prefix = prefix
- elif f.type.is_switch and len(f.type.parents)>1:
- # nested switch gets another separator
- new_prefix = prefix+[(f.c_field_name, '.', f.type)]
- else:
- new_prefix = prefix+[(f.c_field_name, '->', f.type)]
- all_fields.update(_c_helper_field_mapping(f.type, new_prefix, flat))
-
- return all_fields
-# _c_field_mapping()
-
-def _c_helper_resolve_field_names (prefix):
- """
- get field names for all objects in the prefix array
- """
- all_fields = {}
- tmp_prefix = []
- # look for fields in the remaining containers
- for idx, p in enumerate(prefix):
- name, sep, obj = p
- if ''==sep:
- # sep can be preset in prefix, if not, make a sensible guess
- sep = '.' if (obj.is_switch or obj.is_bitcase) else '->'
- # exception: 'toplevel' object (switch as well!) always have sep '->'
- sep = '->' if idx<1 else sep
- if not obj.is_bitcase or (obj.is_bitcase and obj.has_name):
- tmp_prefix.append((name, sep, obj))
- all_fields.update(_c_helper_field_mapping(obj, tmp_prefix, flat=True))
-
- return all_fields
-# _c_helper_resolve_field_names
-
-def get_expr_fields(self):
- """
- get the Fields referenced by switch or list expression
- """
- def get_expr_field_names(expr):
- if expr.op is None:
- if expr.lenfield_name is not None:
- return [expr.lenfield_name]
- else:
- # constant value expr
- return []
- else:
- if expr.op == '~':
- return get_expr_field_names(expr.rhs)
- elif expr.op == 'popcount':
- return get_expr_field_names(expr.rhs)
- elif expr.op == 'sumof':
- # sumof expr references another list,
- # we need that list's length field here
- field = None
- for f in expr.lenfield_parent.fields:
- if f.field_name == expr.lenfield_name:
- field = f
- break
- if field is None:
- raise Exception("list field '%s' referenced by sumof not found" % expr.lenfield_name)
- # referenced list + its length field
- return [expr.lenfield_name] + get_expr_field_names(field.type.expr)
- elif expr.op == 'enumref':
- return []
- else:
- return get_expr_field_names(expr.lhs) + get_expr_field_names(expr.rhs)
- # get_expr_field_names()
-
- # resolve the field names with the parent structure(s)
- unresolved_fields_names = get_expr_field_names(self.expr)
-
- # construct prefix from self
- prefix = [('', '', p) for p in self.parents]
- if self.is_container:
- prefix.append(('', '', self))
-
- all_fields = _c_helper_resolve_field_names (prefix)
- resolved_fields_names = list(filter(lambda x: x in all_fields.keys(), unresolved_fields_names))
- if len(unresolved_fields_names) != len(resolved_fields_names):
- raise Exception("could not resolve all fields for %s" % self.name)
-
- resolved_fields = [all_fields[n][1] for n in resolved_fields_names]
- return resolved_fields
-# get_expr_fields()
-
-def resolve_expr_fields(complex_obj):
- """
- find expr fields appearing in complex_obj and descendents that cannot be resolved within complex_obj
- these are normally fields that need to be given as function parameters
- """
- all_fields = []
- expr_fields = []
- unresolved = []
-
- for field in complex_obj.fields:
- all_fields.append(field)
- if field.type.is_switch or field.type.is_list:
- expr_fields += get_expr_fields(field.type)
- if field.type.is_container:
- expr_fields += resolve_expr_fields(field.type)
-
- # try to resolve expr fields
- for e in expr_fields:
- if e not in all_fields and e not in unresolved:
- unresolved.append(e)
- return unresolved
-# resolve_expr_fields()
-
-def get_serialize_params(context, self, buffer_var='_buffer', aux_var='_aux'):
- """
- functions like _serialize(), _unserialize(), and _unpack() sometimes need additional parameters:
- E.g. in order to unpack switch, extra parameters might be needed to evaluate the switch
- expression. This function tries to resolve all fields within a structure, and returns the
- unresolved fields as the list of external parameters.
- """
- def add_param(params, param):
- if param not in params:
- params.append(param)
-
- # collect all fields into param_fields
- param_fields = []
- wire_fields = []
-
- for field in self.fields:
- if field.visible:
- # the field should appear as a parameter in the function call
- param_fields.append(field)
- if field.wire and not field.auto:
- if field.type.fixed_size() and not self.is_switch:
- # field in the xcb_out structure
- wire_fields.append(field)
- # fields like 'pad0' are skipped!
-
- # in case of switch, parameters always contain any fields referenced in the switch expr
- # we do not need any variable size fields here, as the switch data type contains both
- # fixed and variable size fields
- if self.is_switch:
- param_fields = get_expr_fields(self)
-
- # _serialize()/_unserialize()/_unpack() function parameters
- # note: don't use set() for params, it is unsorted
- params = []
-
- # 1. the parameter for the void * buffer
- if 'serialize' == context:
- params.append(('void', '**', buffer_var))
- elif context in ('unserialize', 'unpack', 'sizeof'):
- params.append(('const void', '*', buffer_var))
-
- # 2. any expr fields that cannot be resolved within self and descendants
- unresolved_fields = resolve_expr_fields(self)
- for f in unresolved_fields:
- add_param(params, (f.c_field_type, '', f.c_field_name))
-
- # 3. param_fields contain the fields necessary to evaluate the switch expr or any other fields
- # that do not appear in the data type struct
- for p in param_fields:
- if self.is_switch:
- typespec = p.c_field_const_type
- pointerspec = p.c_pointer
- add_param(params, (typespec, pointerspec, p.c_field_name))
- else:
- if p.visible and not p.wire and not p.auto:
- typespec = p.c_field_type
- pointerspec = ''
- add_param(params, (typespec, pointerspec, p.c_field_name))
-
- # 4. aux argument
- if 'serialize' == context:
- add_param(params, ('const %s' % self.c_type, '*', aux_var))
- elif 'unserialize' == context:
- add_param(params, ('%s' % self.c_type, '**', aux_var))
- elif 'unpack' == context:
- add_param(params, ('%s' % self.c_type, '*', aux_var))
-
- # 5. switch contains all variable size fields as struct members
- # for other data types though, these have to be supplied separately
- # this is important for the special case of intermixed fixed and
- # variable size fields
- if not self.is_switch and 'serialize' == context:
- for p in param_fields:
- if not p.type.fixed_size():
- add_param(params, (p.c_field_const_type, '*', p.c_field_name))
-
- return (param_fields, wire_fields, params)
-# get_serialize_params()
-
-def _c_serialize_helper_insert_padding(context, code_lines, space, postpone):
- code_lines.append('%s /* insert padding */' % space)
- code_lines.append('%s xcb_pad = -xcb_block_len & (xcb_align_to - 1);' % space)
-# code_lines.append('%s printf("automatically inserting padding: %%%%d\\n", xcb_pad);' % space)
- code_lines.append('%s xcb_buffer_len += xcb_block_len + xcb_pad;' % space)
-
- if not postpone:
- code_lines.append('%s if (0 != xcb_pad) {' % space)
-
- if 'serialize' == context:
- code_lines.append('%s xcb_parts[xcb_parts_idx].iov_base = xcb_pad0;' % space)
- code_lines.append('%s xcb_parts[xcb_parts_idx].iov_len = xcb_pad;' % space)
- code_lines.append('%s xcb_parts_idx++;' % space)
- elif context in ('unserialize', 'unpack', 'sizeof'):
- code_lines.append('%s xcb_tmp += xcb_pad;' % space)
-
- code_lines.append('%s xcb_pad = 0;' % space)
- code_lines.append('%s }' % space)
-
- code_lines.append('%s xcb_block_len = 0;' % space)
-
- # keep tracking of xcb_parts entries for serialize
- return 1
-# _c_serialize_helper_insert_padding()
-
-def _c_serialize_helper_switch(context, self, complex_name,
- code_lines, temp_vars,
- space, prefix):
- count = 0
- switch_expr = _c_accessor_get_expr(self.expr, None)
-
- for b in self.bitcases:
- bitcase_expr = _c_accessor_get_expr(b.type.expr, None)
- code_lines.append(' if(%s & %s) {' % (switch_expr, bitcase_expr))
-# code_lines.append(' printf("switch %s: entering bitcase section %s (mask=%%%%d)...\\n", %s);' %
-# (self.name[-1], b.type.name[-1], bitcase_expr))
- b_prefix = prefix
- if b.type.has_name:
- b_prefix = prefix + [(b.c_field_name, '.', b.type)]
-
- count += _c_serialize_helper_fields(context, b.type,
- code_lines, temp_vars,
- "%s " % space,
- b_prefix,
- is_bitcase = True)
- code_lines.append(' }')
-
-# if 'serialize' == context:
-# count += _c_serialize_helper_insert_padding(context, code_lines, space, False)
-# elif context in ('unserialize', 'unpack', 'sizeof'):
-# # padding
-# code_lines.append('%s xcb_pad = -xcb_block_len & 3;' % space)
-# code_lines.append('%s xcb_buffer_len += xcb_block_len + xcb_pad;' % space)
-
- return count
-# _c_serialize_helper_switch
-
-def _c_serialize_helper_switch_field(context, self, field, c_switch_variable, prefix):
- """
- handle switch by calling _serialize() or _unpack(), depending on context
- """
- # switch is handled by this function as a special case
- param_fields, wire_fields, params = get_serialize_params(context, self)
- field_mapping = _c_helper_field_mapping(self, prefix)
- prefix_str = _c_helper_absolute_name(prefix)
-
- # find the parameters that need to be passed to _serialize()/_unpack():
- # all switch expr fields must be given as parameters
- args = get_expr_fields(field.type)
- # length fields for variable size types in switch, normally only some of need
- # need to be passed as parameters
- switch_len_fields = resolve_expr_fields(field.type)
-
- # a switch field at this point _must_ be a bitcase field
- # we require that bitcases are "self-contiguous"
- bitcase_unresolved = resolve_expr_fields(self)
- if len(bitcase_unresolved) != 0:
- raise Exception('unresolved fields within bitcase is not supported at this point')
-
- # get the C names for the parameters
- c_field_names = ''
- for a in switch_len_fields:
- c_field_names += "%s, " % field_mapping[a.c_field_name][0]
- for a in args:
- c_field_names += "%s, " % field_mapping[a.c_field_name][0]
-
- # call _serialize()/_unpack() to determine the actual size
- if 'serialize' == context:
- length = "%s(&%s, %s&%s%s)" % (field.type.c_serialize_name, c_switch_variable,
- c_field_names, prefix_str, field.c_field_name)
- elif context in ('unserialize', 'unpack'):
- length = "%s(xcb_tmp, %s&%s%s)" % (field.type.c_unpack_name,
- c_field_names, prefix_str, field.c_field_name)
-
- return length
-# _c_serialize_helper_switch_field()
-
-def _c_serialize_helper_list_field(context, self, field,
- code_lines, temp_vars,
- space, prefix):
- """
- helper function to cope with lists of variable length
- """
- expr = field.type.expr
- prefix_str = _c_helper_absolute_name(prefix)
- param_fields, wire_fields, params = get_serialize_params('sizeof', self)
- param_names = [p[2] for p in params]
-
- expr_fields_names = [f.field_name for f in get_expr_fields(field.type)]
- resolved = list(filter(lambda x: x in param_names, expr_fields_names))
- unresolved = list(filter(lambda x: x not in param_names, expr_fields_names))
-
- field_mapping = {}
- for r in resolved:
- field_mapping[r] = (r, None)
-
- if len(unresolved)>0:
- tmp_prefix = prefix
- if len(tmp_prefix)==0:
- raise Exception("found an empty prefix while resolving expr field names for list %s",
- field.c_field_name)
-
- field_mapping.update(_c_helper_resolve_field_names(prefix))
- resolved += list(filter(lambda x: x in field_mapping, unresolved))
- unresolved = list(filter(lambda x: x not in field_mapping, unresolved))
- if len(unresolved)>0:
- raise Exception('could not resolve the length fields required for list %s' % field.c_field_name)
-
- list_length = _c_accessor_get_expr(expr, field_mapping)
-
- # default: list with fixed size elements
- length = '%s * sizeof(%s)' % (list_length, field.type.member.c_wiretype)
-
- # list with variable-sized elements
- if not field.type.member.fixed_size():
- length = ''
- if context in ('unserialize', 'sizeof', 'unpack'):
- int_i = ' unsigned int i;'
- xcb_tmp_len = ' unsigned int xcb_tmp_len;'
- if int_i not in temp_vars:
- temp_vars.append(int_i)
- if xcb_tmp_len not in temp_vars:
- temp_vars.append(xcb_tmp_len)
- # loop over all list elements and call sizeof repeatedly
- # this should be a bit faster than using the iterators
- code_lines.append("%s for(i=0; i<%s; i++) {" % (space, list_length))
- code_lines.append("%s xcb_tmp_len = %s(xcb_tmp);" %
- (space, field.type.c_sizeof_name))
- code_lines.append("%s xcb_block_len += xcb_tmp_len;" % space)
- code_lines.append("%s xcb_tmp += xcb_tmp_len;" % space)
- code_lines.append("%s }" % space)
-
- elif 'serialize' == context:
- code_lines.append('%s xcb_parts[xcb_parts_idx].iov_len = 0;' % space)
- code_lines.append('%s xcb_tmp = (char *) %s%s;' % (space, prefix_str, field.c_field_name))
- code_lines.append('%s for(i=0; i<%s; i++) { ' % (space, list_length))
- code_lines.append('%s xcb_block_len = %s(xcb_tmp);' % (space, field.type.c_sizeof_name))
- code_lines.append('%s xcb_parts[xcb_parts_idx].iov_len += xcb_block_len;' % space)
- code_lines.append('%s }' % space)
- code_lines.append('%s xcb_block_len = xcb_parts[xcb_parts_idx].iov_len;' % space)
-
- return length
-# _c_serialize_helper_list_field()
-
-def _c_serialize_helper_fields_fixed_size(context, self, field,
- code_lines, temp_vars,
- space, prefix):
- # keep the C code a bit more readable by giving the field name
- if not self.is_bitcase:
- code_lines.append('%s /* %s.%s */' % (space, self.c_type, field.c_field_name))
- else:
- scoped_name = [p[2].c_type if idx==0 else p[0] for idx, p in enumerate(prefix)]
- typename = reduce(lambda x,y: "%s.%s" % (x, y), scoped_name)
- code_lines.append('%s /* %s.%s */' % (space, typename, field.c_field_name))
-
- abs_field_name = _c_helper_absolute_name(prefix, field)
- # default for simple cases: call sizeof()
- length = "sizeof(%s)" % field.c_field_type
-
- if context in ('unserialize', 'unpack', 'sizeof'):
- # default: simple cast
- value = ' %s = *(%s *)xcb_tmp;' % (abs_field_name, field.c_field_type)
-
- # padding - we could probably just ignore it
- if field.type.is_pad and field.type.nmemb > 1:
- value = ''
- for i in range(field.type.nmemb):
- code_lines.append('%s %s[%d] = *(%s *)xcb_tmp;' %
- (space, abs_field_name, i, field.c_field_type))
- # total padding = sizeof(pad0) * nmemb
- length += " * %d" % field.type.nmemb
-
- if field.type.is_list:
- # no such case in the protocol, cannot be tested and therefore ignored for now
- raise Exception('list with fixed number of elemens unhandled in _unserialize()')
-
- elif 'serialize' == context:
- value = ' xcb_parts[xcb_parts_idx].iov_base = (char *) '
-
- if field.type.is_expr:
- # need to register a temporary variable for the expression in case we know its type
- if field.type.c_type is None:
- raise Exception("type for field '%s' (expression '%s') unkown" %
- (field.field_name, _c_accessor_get_expr(field.type.expr)))
-
- temp_vars.append(' %s xcb_expr_%s = %s;' % (field.type.c_type, _cpp(field.field_name),
- _c_accessor_get_expr(field.type.expr, prefix)))
- value += "&xcb_expr_%s;" % _cpp(field.field_name)
-
- elif field.type.is_pad:
- if field.type.nmemb == 1:
- value += "&xcb_pad;"
- else:
- # we could also set it to 0, see definition of xcb_send_request()
- value = ' xcb_parts[xcb_parts_idx].iov_base = xcb_pad0;'
- length += "*%d" % field.type.nmemb
-
- else:
- # non-list type with fixed size
- if field.type.nmemb == 1:
- value += "&%s;" % (abs_field_name)
-
- # list with nmemb (fixed size) elements
- else:
- value += '%s;' % (abs_field_name)
- length = '%d' % field.type.nmemb
-
- return (value, length)
-# _c_serialize_helper_fields_fixed_size()
-
-def _c_serialize_helper_fields_variable_size(context, self, field,
- code_lines, temp_vars,
- space, prefix):
- prefix_str = _c_helper_absolute_name(prefix)
-
- if context in ('unserialize', 'unpack', 'sizeof'):
- value = ''
- var_field_name = 'xcb_tmp'
-
- # special case: intermixed fixed and variable size fields
- if self.var_followed_by_fixed_fields and 'unserialize' == context:
- value = ' %s = (%s *)xcb_tmp;' % (field.c_field_name, field.c_field_type)
- temp_vars.append(' %s *%s;' % (field.type.c_type, field.c_field_name))
- # special case: switch
- if 'unpack' == context:
- value = ' %s%s = (%s *)xcb_tmp;' % (prefix_str, field.c_field_name, field.c_field_type)
-
- elif 'serialize' == context:
- # variable size fields appear as parameters to _serialize() if the
- # 'toplevel' container is not a switch
- prefix_string = prefix_str if prefix[0][2].is_switch else ''
- var_field_name = "%s%s" % (prefix_string, field.c_field_name)
- value = ' xcb_parts[xcb_parts_idx].iov_base = (char *) %s;' % var_field_name
-
- length = ''
-
- code_lines.append('%s /* %s */' % (space, field.c_field_name))
-
- if field.type.is_list:
- if value != '':
- # in any context, list is already a pointer, so the default assignment is ok
- code_lines.append("%s%s" % (space, value))
- value = ''
- length = _c_serialize_helper_list_field(context, self, field,
- code_lines, temp_vars,
- space, prefix)
-
- elif field.type.is_switch:
- value = ''
- if context == 'serialize':
- # the _serialize() function allocates the correct amount memory if given a NULL pointer
- value = ' xcb_parts[xcb_parts_idx].iov_base = (char *)0;'
- length = _c_serialize_helper_switch_field(context, self, field,
- 'xcb_parts[xcb_parts_idx].iov_base',
- prefix)
-
- else:
- # in all remaining special cases - call _sizeof()
- length = "%s(%s)" % (field.type.c_sizeof_name, var_field_name)
-
- return (value, length)
-# _c_serialize_helper_fields_variable_size
-
-def _c_serialize_helper_fields(context, self,
- code_lines, temp_vars,
- space, prefix, is_bitcase):
- count = 0
- need_padding = False
- prev_field_was_variable = False
-
- for field in self.fields:
- if not field.visible:
- if not ((field.wire and not field.auto) or 'unserialize' == context):
- continue
-
- # switch/bitcase: fixed size fields must be considered explicitly
- if field.type.fixed_size():
- if self.is_bitcase or self.var_followed_by_fixed_fields:
- if prev_field_was_variable and need_padding:
- # insert padding
-# count += _c_serialize_helper_insert_padding(context, code_lines, space,
-# self.var_followed_by_fixed_fields)
- prev_field_was_variable = False
-
- # prefix for fixed size fields
- fixed_prefix = prefix
-
- value, length = _c_serialize_helper_fields_fixed_size(context, self, field,
- code_lines, temp_vars,
- space, fixed_prefix)
- else:
- continue
-
- # fields with variable size
- else:
- # switch/bitcase: always calculate padding before and after variable sized fields
- if need_padding or is_bitcase:
- count += _c_serialize_helper_insert_padding(context, code_lines, space,
- self.var_followed_by_fixed_fields)
-
- value, length = _c_serialize_helper_fields_variable_size(context, self, field,
- code_lines, temp_vars,
- space, prefix)
- prev_field_was_variable = True
-
- # save (un)serialization C code
- if '' != value:
- code_lines.append('%s%s' % (space, value))
-
- if field.type.fixed_size():
- if is_bitcase or self.var_followed_by_fixed_fields:
- # keep track of (un)serialized object's size
- code_lines.append('%s xcb_block_len += %s;' % (space, length))
- if context in ('unserialize', 'unpack', 'sizeof'):
- code_lines.append('%s xcb_tmp += %s;' % (space, length))
- else:
- # variable size objects or bitcase:
- # value & length might have been inserted earlier for special cases
- if '' != length:
- # special case: intermixed fixed and variable size fields
- if (not field.type.fixed_size() and
- self.var_followed_by_fixed_fields and 'unserialize' == context):
- temp_vars.append(' int %s_len;' % field.c_field_name)
- code_lines.append('%s %s_len = %s;' % (space, field.c_field_name, length))
- code_lines.append('%s xcb_block_len += %s_len;' % (space, field.c_field_name))
- code_lines.append('%s xcb_tmp += %s_len;' % (space, field.c_field_name))
- else:
- code_lines.append('%s xcb_block_len += %s;' % (space, length))
- # increase pointer into the byte stream accordingly
- if context in ('unserialize', 'sizeof', 'unpack'):
- code_lines.append('%s xcb_tmp += xcb_block_len;' % space)
-
- if 'serialize' == context:
- if '' != length:
- code_lines.append('%s xcb_parts[xcb_parts_idx].iov_len = %s;' % (space, length))
- code_lines.append('%s xcb_parts_idx++;' % space)
- count += 1
-
- code_lines.append('%s xcb_align_to = ALIGNOF(%s);' % (space, 'char' if field.c_field_type == 'void' else field.c_field_type))
-
- need_padding = True
- if self.var_followed_by_fixed_fields:
- need_padding = False
-
- return count
-# _c_serialize_helper_fields()
-
-def _c_serialize_helper(context, complex_type,
- code_lines, temp_vars,
- space='', prefix=[]):
- # count tracks the number of fields to serialize
- count = 0
-
- if hasattr(complex_type, 'type'):
- self = complex_type.type
- complex_name = complex_type.name
- else:
- self = complex_type
- if self.var_followed_by_fixed_fields and 'unserialize' == context:
- complex_name = 'xcb_out'
- else:
- complex_name = '_aux'
-
- # special case: switch is serialized by evaluating each bitcase separately
- if self.is_switch:
- count += _c_serialize_helper_switch(context, self, complex_name,
- code_lines, temp_vars,
- space, prefix)
-
- # all other data types can be evaluated one field a time
- else:
- # unserialize & fixed size fields: simply cast the buffer to the respective xcb_out type
- if context in ('unserialize', 'unpack', 'sizeof') and not self.var_followed_by_fixed_fields:
- code_lines.append('%s xcb_block_len += sizeof(%s);' % (space, self.c_type))
- code_lines.append('%s xcb_tmp += xcb_block_len;' % space)
- # probably not needed
- #_c_serialize_helper_insert_padding(context, code_lines, space, False)
-
- count += _c_serialize_helper_fields(context, self,
- code_lines, temp_vars,
- space, prefix, False)
- # "final padding"
- count += _c_serialize_helper_insert_padding(context, code_lines, space, False)
-
- return count
-# _c_serialize_helper()
-
-def _c_serialize(context, self):
- """
- depending on the context variable, generate _serialize(), _unserialize(), _unpack(), or _sizeof()
- for the ComplexType variable self
- """
- _h_setlevel(1)
- _c_setlevel(1)
-
- _hc('')
- # _serialize() returns the buffer size
- _hc('int')
-
- if self.is_switch and 'unserialize' == context:
- context = 'unpack'
-
- cases = { 'serialize' : self.c_serialize_name,
- 'unserialize' : self.c_unserialize_name,
- 'unpack' : self.c_unpack_name,
- 'sizeof' : self.c_sizeof_name }
- func_name = cases[context]
-
- param_fields, wire_fields, params = get_serialize_params(context, self)
- variable_size_fields = 0
- # maximum space required for type definition of function arguments
- maxtypelen = 0
-
- # determine N(variable_fields)
- for field in param_fields:
- # if self.is_switch, treat all fields as if they are variable sized
- if not field.type.fixed_size() or self.is_switch:
- variable_size_fields += 1
- # determine maxtypelen
- for p in params:
- maxtypelen = max(maxtypelen, len(p[0]) + len(p[1]))
-
- # write to .c/.h
- indent = ' '*(len(func_name)+2)
- param_str = []
- for p in params:
- typespec, pointerspec, field_name = p
- spacing = ' '*(maxtypelen-len(typespec)-len(pointerspec))
- param_str.append("%s%s%s %s%s /**< */" % (indent, typespec, spacing, pointerspec, field_name))
- # insert function name
- param_str[0] = "%s (%s" % (func_name, param_str[0].strip())
- param_str = list(map(lambda x: "%s," % x, param_str))
- for s in param_str[:-1]:
- _hc(s)
- _h("%s);" % param_str[-1].rstrip(','))
- _c("%s)" % param_str[-1].rstrip(','))
- _c('{')
-
- code_lines = []
- temp_vars = []
- prefix = []
-
- if 'serialize' == context:
- if not self.is_switch and not self.var_followed_by_fixed_fields:
- _c(' %s *xcb_out = *_buffer;', self.c_type)
- _c(' unsigned int xcb_out_pad = -sizeof(%s) & 3;', self.c_type)
- _c(' unsigned int xcb_buffer_len = sizeof(%s) + xcb_out_pad;', self.c_type)
- _c(' unsigned int xcb_align_to;')
- else:
- _c(' char *xcb_out = *_buffer;')
- _c(' unsigned int xcb_buffer_len = 0;')
- _c(' unsigned int xcb_align_to;')
- prefix = [('_aux', '->', self)]
- aux_ptr = 'xcb_out'
-
- elif context in ('unserialize', 'unpack'):
- _c(' char *xcb_tmp = (char *)_buffer;')
- if not self.is_switch:
- if not self.var_followed_by_fixed_fields:
- _c(' const %s *_aux = (%s *)_buffer;', self.c_type, self.c_type)
- prefix = [('_aux', '->', self)]
- else:
- _c(' %s xcb_out;', self.c_type)
- prefix = [('xcb_out', '.', self)]
- else:
- aux_var = '_aux' # default for unpack: single pointer
- # note: unserialize not generated for switch
- if 'unserialize' == context:
- aux_var = '(*_aux)' # unserialize: double pointer (!)
- prefix = [(aux_var, '->', self)]
- aux_ptr = '*_aux'
- _c(' unsigned int xcb_buffer_len = 0;')
- _c(' unsigned int xcb_block_len = 0;')
- _c(' unsigned int xcb_pad = 0;')
- _c(' unsigned int xcb_align_to;')
-
- elif 'sizeof' == context:
- param_names = [p[2] for p in params]
- if self.is_switch:
- # switch: call _unpack()
- _c(' %s _aux;', self.c_type)
- _c(' return %s(%s, &_aux);', self.c_unpack_name, reduce(lambda x,y: "%s, %s" % (x, y), param_names))
- _c('}')
- return
- elif self.var_followed_by_fixed_fields:
- # special case: call _unserialize()
- _c(' return %s(%s, NULL);', self.c_unserialize_name, reduce(lambda x,y: "%s, %s" % (x, y), param_names))
- _c('}')
- return
- else:
- _c(' char *xcb_tmp = (char *)_buffer;')
- prefix = [('_aux', '->', self)]
-
- count = _c_serialize_helper(context, self, code_lines, temp_vars, prefix=prefix)
- # update variable size fields (only important for context=='serialize'
- variable_size_fields = count
- if 'serialize' == context:
- temp_vars.append(' unsigned int xcb_pad = 0;')
- temp_vars.append(' char xcb_pad0[3] = {0, 0, 0};')
- temp_vars.append(' struct iovec xcb_parts[%d];' % count)
- temp_vars.append(' unsigned int xcb_parts_idx = 0;')
- temp_vars.append(' unsigned int xcb_block_len = 0;')
- temp_vars.append(' unsigned int i;')
- temp_vars.append(' char *xcb_tmp;')
- elif 'sizeof' == context:
- # neither switch nor intermixed fixed and variable size fields:
- # evaluate parameters directly
- if not (self.is_switch or self.var_followed_by_fixed_fields):
-
- # look if we have to declare an '_aux' variable at all
- if len(list(filter(lambda x: x.find('_aux')!=-1, code_lines)))>0:
- if not self.var_followed_by_fixed_fields:
- _c(' const %s *_aux = (%s *)_buffer;', self.c_type, self.c_type)
- else:
- _c(' %s *_aux = malloc(sizeof(%s));', self.c_type, self.c_type)
-
- _c(' unsigned int xcb_buffer_len = 0;')
- _c(' unsigned int xcb_block_len = 0;')
- _c(' unsigned int xcb_pad = 0;')
- _c(' unsigned int xcb_align_to;')
-
- _c('')
- for t in temp_vars:
- _c(t)
- _c('')
- for l in code_lines:
- _c(l)
-
- # variable sized fields have been collected, now
- # allocate memory and copy everything into a continuous memory area
- # note: this is not necessary in case of unpack
- if context in ('serialize', 'unserialize'):
- # unserialize: check for sizeof-only invocation
- if 'unserialize' == context:
- _c('')
- _c(' if (NULL == _aux)')
- _c(' return xcb_buffer_len;')
-
- _c('')
- _c(' if (NULL == %s) {', aux_ptr)
- _c(' /* allocate memory */')
- _c(' %s = malloc(xcb_buffer_len);', aux_ptr)
- if 'serialize' == context:
- _c(' *_buffer = xcb_out;')
- _c(' }')
- _c('')
-
- # serialize: handle variable size fields in a loop
- if 'serialize' == context:
- if not self.is_switch and not self.var_followed_by_fixed_fields:
- if len(wire_fields)>0:
- _c(' *xcb_out = *_aux;')
- # copy variable size fields into the buffer
- if variable_size_fields > 0:
- # xcb_out padding
- if not self.is_switch and not self.var_followed_by_fixed_fields:
- _c(' xcb_tmp = (char*)++xcb_out;')
- _c(' xcb_tmp += xcb_out_pad;')
- else:
- _c(' xcb_tmp = xcb_out;')
-
- # variable sized fields
- _c(' for(i=0; i<xcb_parts_idx; i++) {')
- _c(' if (0 != xcb_parts[i].iov_base && 0 != xcb_parts[i].iov_len)')
- _c(' memcpy(xcb_tmp, xcb_parts[i].iov_base, xcb_parts[i].iov_len);')
- _c(' if (0 != xcb_parts[i].iov_len)')
- _c(' xcb_tmp += xcb_parts[i].iov_len;')
- _c(' }')
-
- # unserialize: assign variable size fields individually
- if 'unserialize' == context:
- _c(' xcb_tmp = ((char *)*_aux)+xcb_buffer_len;')
- param_fields.reverse()
- for field in param_fields:
- if not field.type.fixed_size():
- _c(' xcb_tmp -= %s_len;', field.c_field_name)
- _c(' memmove(xcb_tmp, %s, %s_len);', field.c_field_name, field.c_field_name)
- _c(' *%s = xcb_out;', aux_ptr)
-
- _c('')
- _c(' return xcb_buffer_len;')
- _c('}')
-# _c_serialize()
-
-def _c_iterator_get_end(field, accum):
- '''
- Figures out what C code is needed to find the end of a variable-length structure field.
- For nested structures, recurses into its last variable-sized field.
- For lists, calls the end function
- '''
- if field.type.is_container:
- accum = field.c_accessor_name + '(' + accum + ')'
- return _c_iterator_get_end(field.type.last_varsized_field, accum)
- if field.type.is_list:
- # XXX we can always use the first way
- if field.type.member.is_simple:
- return field.c_end_name + '(' + accum + ')'
- else:
- return field.type.member.c_end_name + '(' + field.c_iterator_name + '(' + accum + '))'
-
-def _c_iterator(self, name):
- '''
- Declares the iterator structure and next/end functions for a given type.
- '''
- _h_setlevel(0)
- _h('')
- _h('/**')
- _h(' * @brief %s', self.c_iterator_type)
- _h(' **/')
- _h('typedef struct %s {', self.c_iterator_type)
- _h(' %s *data; /**< */', self.c_type)
- _h(' int%s rem; /**< */', ' ' * (len(self.c_type) - 2))
- _h(' int%s index; /**< */', ' ' * (len(self.c_type) - 2))
- _h('} %s;', self.c_iterator_type)
-
- _h_setlevel(1)
- _c_setlevel(1)
- _h('')
- _h('/**')
- _h(' * Get the next element of the iterator')
- _h(' * @param i Pointer to a %s', self.c_iterator_type)
- _h(' *')
- _h(' * Get the next element in the iterator. The member rem is')
- _h(' * decreased by one. The member data points to the next')
- _h(' * element. The member index is increased by sizeof(%s)', self.c_type)
- _h(' */')
- _c('')
- _hc('')
- _hc('/*****************************************************************************')
- _hc(' **')
- _hc(' ** void %s', self.c_next_name)
- _hc(' ** ')
- _hc(' ** @param %s *i', self.c_iterator_type)
- _hc(' ** @returns void')
- _hc(' **')
- _hc(' *****************************************************************************/')
- _hc(' ')
- _hc('void')
- _h('%s (%s *i /**< */);', self.c_next_name, self.c_iterator_type)
- _c('%s (%s *i /**< */)', self.c_next_name, self.c_iterator_type)
- _c('{')
-
- if not self.fixed_size():
- _c(' %s *R = i->data;', self.c_type)
-
- if self.is_union:
- # FIXME - how to determine the size of a variable size union??
- _c(' /* FIXME - determine the size of the union %s */', self.c_type)
- else:
- if self.need_sizeof:
- _c(' xcb_generic_iterator_t child;')
- _c(' child.data = (%s *)(((char *)R) + %s(R));',
- self.c_type, self.c_sizeof_name)
- _c(' i->index = (char *) child.data - (char *) i->data;')
- else:
- _c(' xcb_generic_iterator_t child = %s;', _c_iterator_get_end(self.last_varsized_field, 'R'))
- _c(' i->index = child.index;')
- _c(' --i->rem;')
- _c(' i->data = (%s *) child.data;', self.c_type)
-
- else:
- _c(' --i->rem;')
- _c(' ++i->data;')
- _c(' i->index += sizeof(%s);', self.c_type)
-
- _c('}')
-
- _h('')
- _h('/**')
- _h(' * Return the iterator pointing to the last element')
- _h(' * @param i An %s', self.c_iterator_type)
- _h(' * @return The iterator pointing to the last element')
- _h(' *')
- _h(' * Set the current element in the iterator to the last element.')
- _h(' * The member rem is set to 0. The member data points to the')
- _h(' * last element.')
- _h(' */')
- _c('')
- _hc('')
- _hc('/*****************************************************************************')
- _hc(' **')
- _hc(' ** xcb_generic_iterator_t %s', self.c_end_name)
- _hc(' ** ')
- _hc(' ** @param %s i', self.c_iterator_type)
- _hc(' ** @returns xcb_generic_iterator_t')
- _hc(' **')
- _hc(' *****************************************************************************/')
- _hc(' ')
- _hc('xcb_generic_iterator_t')
- _h('%s (%s i /**< */);', self.c_end_name, self.c_iterator_type)
- _c('%s (%s i /**< */)', self.c_end_name, self.c_iterator_type)
- _c('{')
- _c(' xcb_generic_iterator_t ret;')
-
- if self.fixed_size():
- _c(' ret.data = i.data + i.rem;')
- _c(' ret.index = i.index + ((char *) ret.data - (char *) i.data);')
- _c(' ret.rem = 0;')
- else:
- _c(' while(i.rem > 0)')
- _c(' %s(&i);', self.c_next_name)
- _c(' ret.data = i.data;')
- _c(' ret.rem = i.rem;')
- _c(' ret.index = i.index;')
-
- _c(' return ret;')
- _c('}')
-
-def _c_accessor_get_length(expr, field_mapping=None):
- '''
- Figures out what C code is needed to get a length field.
- The field_mapping parameter can be used to change the absolute name of a length field.
- For fields that follow a variable-length field, use the accessor.
- Otherwise, just reference the structure field directly.
- '''
-
- lenfield_name = expr.lenfield_name
- if lenfield_name is not None:
- if field_mapping is not None:
- lenfield_name = field_mapping[lenfield_name][0]
-
- if expr.lenfield is not None and expr.lenfield.prev_varsized_field is not None:
- # special case: variable and fixed size fields are intermixed
- # if the lenfield is among the fixed size fields, there is no need
- # to call a special accessor function like <expr.lenfield.c_accessor_name + '(' + prefix + ')'>
- return field_mapping(expr.lenfield_name)
- elif expr.lenfield_name is not None:
- return lenfield_name
- else:
- return str(expr.nmemb)
-
-def _c_accessor_get_expr(expr, field_mapping):
- '''
- Figures out what C code is needed to get the length of a list field.
- The field_mapping parameter can be used to change the absolute name of a length field.
- Recurses for math operations.
- Returns bitcount for value-mask fields.
- Otherwise, uses the value of the length field.
- '''
- lenexp = _c_accessor_get_length(expr, field_mapping)
-
- if expr.op == '~':
- return '(' + '~' + _c_accessor_get_expr(expr.rhs, field_mapping) + ')'
- elif expr.op == 'popcount':
- return 'xcb_popcount(' + _c_accessor_get_expr(expr.rhs, field_mapping) + ')'
- elif expr.op == 'enumref':
- enum_name = expr.lenfield_type.name
- constant_name = expr.lenfield_name
- c_name = _n(enum_name + (constant_name,)).upper()
- return c_name
- elif expr.op == 'sumof':
- # locate the referenced list object
- list_obj = expr.lenfield_type
- field = None
- for f in expr.lenfield_parent.fields:
- if f.field_name == expr.lenfield_name:
- field = f
- break
-
- if field is None:
- raise Exception("list field '%s' referenced by sumof not found" % expr.lenfield_name)
- list_name = field_mapping[field.c_field_name][0]
- c_length_func = "%s(%s)" % (field.c_length_name, list_name)
- # note: xcb_sumof() has only been defined for integers
- c_length_func = _c_accessor_get_expr(field.type.expr, field_mapping)
- return 'xcb_sumof(%s, %s)' % (list_name, c_length_func)
- elif expr.op != None:
- return ('(' + _c_accessor_get_expr(expr.lhs, field_mapping) +
- ' ' + expr.op + ' ' +
- _c_accessor_get_expr(expr.rhs, field_mapping) + ')')
- elif expr.bitfield:
- return 'xcb_popcount(' + lenexp + ')'
- else:
- return lenexp
-
-def type_pad_type(type):
- if type == 'void':
- return 'char'
- return type
-
-def _c_accessors_field(self, field):
- '''
- Declares the accessor functions for a non-list field that follows a variable-length field.
- '''
- c_type = self.c_type
-
- # special case: switch
- switch_obj = self if self.is_switch else None
- if self.is_bitcase:
- switch_obj = self.parents[-1]
- if switch_obj is not None:
- c_type = switch_obj.c_type
-
- if field.type.is_simple:
- _hc('')
- _hc('')
- _hc('/*****************************************************************************')
- _hc(' ** ')
- _hc(' ** %s %s', field.c_field_type, field.c_accessor_name)
- _hc(' ** ')
- _hc(' ** @param const %s *R', c_type)
- _hc(' ** @returns %s', field.c_field_type)
- _hc(' **')
- _hc(' *****************************************************************************/')
- _hc(' ')
- _hc('%s', field.c_field_type)
- _h('%s (const %s *R /**< */);', field.c_accessor_name, c_type)
- _c('%s (const %s *R /**< */)', field.c_accessor_name, c_type)
- _c('{')
- if field.prev_varsized_field is None:
- _c(' return (%s *) (R + 1);', field.c_field_type)
- else:
- _c(' xcb_generic_iterator_t prev = %s;', _c_iterator_get_end(field.prev_varsized_field, 'R'))
- _c(' return * (%s *) ((char *) prev.data + XCB_TYPE_PAD(%s, prev.index) + %d);',
- field.c_field_type, type_pad_type(field.first_field_after_varsized.type.c_type), field.prev_varsized_offset)
- _c('}')
- else:
- _hc('')
- _hc('')
- _hc('/*****************************************************************************')
- _hc(' **')
- _hc(' ** %s * %s', field.c_field_type, field.c_accessor_name)
- _hc(' ** ')
- _hc(' ** @param const %s *R', c_type)
- _hc(' ** @returns %s *', field.c_field_type)
- _hc(' **')
- _hc(' *****************************************************************************/')
- _hc(' ')
- if field.type.is_switch and switch_obj is None:
- return_type = 'void *'
- else:
- return_type = '%s *' % field.c_field_type
-
- _hc(return_type)
- _h('%s (const %s *R /**< */);', field.c_accessor_name, c_type)
- _c('%s (const %s *R /**< */)', field.c_accessor_name, c_type)
- _c('{')
- if field.prev_varsized_field is None:
- _c(' return (%s) (R + 1);', return_type)
- # note: the special case 'variable fields followed by fixed size fields'
- # is not of any consequence here, since the ordering gets
- # 'corrected' in the reply function
- else:
- _c(' xcb_generic_iterator_t prev = %s;', _c_iterator_get_end(field.prev_varsized_field, 'R'))
- _c(' return (%s) ((char *) prev.data + XCB_TYPE_PAD(%s, prev.index) + %d);',
- return_type, type_pad_type(field.first_field_after_varsized.type.c_type), field.prev_varsized_offset)
- _c('}')
-
-
-def _c_accessors_list(self, field):
- '''
- Declares the accessor functions for a list field.
- Declares a direct-accessor function only if the list members are fixed size.
- Declares length and get-iterator functions always.
- '''
- list = field.type
- c_type = self.c_type
-
- # special case: switch
- # in case of switch, 2 params have to be supplied to certain accessor functions:
- # 1. the anchestor object (request or reply)
- # 2. the (anchestor) switch object
- # the reason is that switch is either a child of a request/reply or nested in another switch,
- # so whenever we need to access a length field, we might need to refer to some anchestor type
- switch_obj = self if self.is_switch else None
- if self.is_bitcase:
- switch_obj = self.parents[-1]
- if switch_obj is not None:
- c_type = switch_obj.c_type
-
- params = []
- fields = {}
- parents = self.parents if hasattr(self, 'parents') else [self]
- # 'R': parents[0] is always the 'toplevel' container type
- params.append(('const %s *R' % parents[0].c_type, parents[0]))
- fields.update(_c_helper_field_mapping(parents[0], [('R', '->', parents[0])], flat=True))
- # auxiliary object for 'R' parameters
- R_obj = parents[0]
-
- if switch_obj is not None:
- # now look where the fields are defined that are needed to evaluate
- # the switch expr, and store the parent objects in accessor_params and
- # the fields in switch_fields
-
- # 'S': name for the 'toplevel' switch
- toplevel_switch = parents[1]
- params.append(('const %s *S' % toplevel_switch.c_type, toplevel_switch))
- fields.update(_c_helper_field_mapping(toplevel_switch, [('S', '->', toplevel_switch)], flat=True))
-
- # initialize prefix for everything "below" S
- prefix_str = '/* %s */ S' % toplevel_switch.name[-1]
- prefix = [(prefix_str, '->', toplevel_switch)]
-
- # look for fields in the remaining containers
- for p in parents[2:] + [self]:
- # the separator between parent and child is always '.' here,
- # because of nested switch statements
- if not p.is_bitcase or (p.is_bitcase and p.has_name):
- prefix.append((p.name[-1], '.', p))
- fields.update(_c_helper_field_mapping(p, prefix, flat=True))
-
- # auxiliary object for 'S' parameter
- S_obj = parents[1]
-
- _h_setlevel(1)
- _c_setlevel(1)
- if list.member.fixed_size():
- idx = 1 if switch_obj is not None else 0
- _hc('')
- _hc('')
- _hc('/*****************************************************************************')
- _hc(' **')
- _hc(' ** %s * %s', field.c_field_type, field.c_accessor_name)
- _hc(' ** ')
- _hc(' ** @param %s', params[idx][0])
- _hc(' ** @returns %s *', field.c_field_type)
- _hc(' **')
- _hc(' *****************************************************************************/')
- _hc(' ')
- _hc('%s *', field.c_field_type)
-
- _h('%s (%s /**< */);', field.c_accessor_name, params[idx][0])
- _c('%s (%s /**< */)', field.c_accessor_name, params[idx][0])
-
- _c('{')
- if switch_obj is not None:
- _c(' return %s;', fields[field.c_field_name][0])
- elif field.prev_varsized_field is None:
- _c(' return (%s *) (R + 1);', field.c_field_type)
- else:
- _c(' xcb_generic_iterator_t prev = %s;', _c_iterator_get_end(field.prev_varsized_field, 'R'))
- _c(' return (%s *) ((char *) prev.data + XCB_TYPE_PAD(%s, prev.index) + %d);',
- field.c_field_type, type_pad_type(field.first_field_after_varsized.type.c_type), field.prev_varsized_offset)
- _c('}')
-
- _hc('')
- _hc('')
- _hc('/*****************************************************************************')
- _hc(' **')
- _hc(' ** int %s', field.c_length_name)
- _hc(' ** ')
- _hc(' ** @param const %s *R', c_type)
- _hc(' ** @returns int')
- _hc(' **')
- _hc(' *****************************************************************************/')
- _hc(' ')
- _hc('int')
- if switch_obj is not None:
- _hc('%s (const %s *R /**< */,', field.c_length_name, R_obj.c_type)
- spacing = ' '*(len(field.c_length_name)+2)
- _h('%sconst %s *S /**< */);', spacing, S_obj.c_type)
- _c('%sconst %s *S /**< */)', spacing, S_obj.c_type)
- length = _c_accessor_get_expr(field.type.expr, fields)
- else:
- _h('%s (const %s *R /**< */);', field.c_length_name, c_type)
- _c('%s (const %s *R /**< */)', field.c_length_name, c_type)
- length = _c_accessor_get_expr(field.type.expr, fields)
- _c('{')
- _c(' return %s;', length)
- _c('}')
-
- if field.type.member.is_simple:
- _hc('')
- _hc('')
- _hc('/*****************************************************************************')
- _hc(' **')
- _hc(' ** xcb_generic_iterator_t %s', field.c_end_name)
- _hc(' ** ')
- _hc(' ** @param const %s *R', c_type)
- _hc(' ** @returns xcb_generic_iterator_t')
- _hc(' **')
- _hc(' *****************************************************************************/')
- _hc(' ')
- _hc('xcb_generic_iterator_t')
- if switch_obj is not None:
- _hc('%s (const %s *R /**< */,', field.c_end_name, R_obj.c_type)
- spacing = ' '*(len(field.c_end_name)+2)
- _h('%sconst %s *S /**< */);', spacing, S_obj.c_type)
- _c('%sconst %s *S /**< */)', spacing, S_obj.c_type)
- else:
- _h('%s (const %s *R /**< */);', field.c_end_name, c_type)
- _c('%s (const %s *R /**< */)', field.c_end_name, c_type)
- _c('{')
- _c(' xcb_generic_iterator_t i;')
-
- param = 'R' if switch_obj is None else 'S'
- if switch_obj is not None:
- _c(' i.data = %s + %s;', fields[field.c_field_name][0],
- _c_accessor_get_expr(field.type.expr, fields))
- elif field.prev_varsized_field == None:
- _c(' i.data = ((%s *) (R + 1)) + (%s);', field.type.c_wiretype,
- _c_accessor_get_expr(field.type.expr, fields))
- else:
- _c(' xcb_generic_iterator_t child = %s;',
- _c_iterator_get_end(field.prev_varsized_field, 'R'))
- _c(' i.data = ((%s *) child.data) + (%s);', field.type.c_wiretype,
- _c_accessor_get_expr(field.type.expr, fields))
-
- _c(' i.rem = 0;')
- _c(' i.index = (char *) i.data - (char *) %s;', param)
- _c(' return i;')
- _c('}')
-
- else:
- _hc('')
- _hc('')
- _hc('/*****************************************************************************')
- _hc(' **')
- _hc(' ** %s %s', field.c_iterator_type, field.c_iterator_name)
- _hc(' ** ')
- _hc(' ** @param const %s *R', c_type)
- _hc(' ** @returns %s', field.c_iterator_type)
- _hc(' **')
- _hc(' *****************************************************************************/')
- _hc(' ')
-
- _hc('%s', field.c_iterator_type)
- if switch_obj is not None:
- _hc('%s (const %s *R /**< */,', field.c_iterator_name, R_obj.c_type)
- spacing = ' '*(len(field.c_iterator_name)+2)
- _h('%sconst %s *S /**< */);', spacing, S_obj.c_type)
- _c('%sconst %s *S /**< */)', spacing, S_obj.c_type)
- else:
- _h('%s (const %s *R /**< */);', field.c_iterator_name, c_type)
- _c('%s (const %s *R /**< */)', field.c_iterator_name, c_type)
- _c('{')
- _c(' %s i;', field.c_iterator_type)
-
- if switch_obj is not None:
- _c(' i.data = %s;', fields[field.c_field_name][0])
- _c(' i.rem = %s;', _c_accessor_get_expr(field.type.expr, fields))
- elif field.prev_varsized_field == None:
- _c(' i.data = (%s *) (R + 1);', field.c_field_type)
- else:
- _c(' xcb_generic_iterator_t prev = %s;', _c_iterator_get_end(field.prev_varsized_field, 'R'))
- _c(' i.data = (%s *) ((char *) prev.data + XCB_TYPE_PAD(%s, prev.index));',
- field.c_field_type, type_pad_type(field.c_field_type))
- if switch_obj is None:
- _c(' i.rem = %s;', _c_accessor_get_expr(field.type.expr, fields))
- _c(' i.index = (char *) i.data - (char *) %s;', 'R' if switch_obj is None else 'S' )
- _c(' return i;')
- _c('}')
-
-def _c_accessors(self, name, base):
- '''
- Declares the accessor functions for the fields of a structure.
- '''
- # no accessors for switch itself -
- # switch always needs to be unpacked explicitly
-# if self.is_switch:
-# pass
-# else:
- if True:
- for field in self.fields:
- if field.type.is_list and not field.type.fixed_size():
- _c_accessors_list(self, field)
- elif field.prev_varsized_field is not None or not field.type.fixed_size():
- _c_accessors_field(self, field)
-
-def c_simple(self, name):
- '''
- Exported function that handles cardinal type declarations.
- These are types which are typedef'd to one of the CARDx's, char, float, etc.
- '''
- _c_type_setup(self, name, ())
-
- if (self.name != name):
- # Typedef
- _h_setlevel(0)
- my_name = _t(name)
- _h('')
- _h('typedef %s %s;', _t(self.name), my_name)
-
- # Iterator
- _c_iterator(self, name)
-
-def _c_complex(self):
- '''
- Helper function for handling all structure types.
- Called for all structs, requests, replies, events, errors.
- '''
- _h_setlevel(0)
- _h('')
- _h('/**')
- _h(' * @brief %s', self.c_type)
- _h(' **/')
- _h('typedef %s %s {', self.c_container, self.c_type)
-
- struct_fields = []
- maxtypelen = 0
-
- varfield = None
- for field in self.fields:
- if not field.type.fixed_size() and not self.is_switch and not self.is_union:
- varfield = field.c_field_name
- continue
- if field.wire:
- struct_fields.append(field)
-
- for field in struct_fields:
- length = len(field.c_field_type)
- # account for '*' pointer_spec
- if not field.type.fixed_size():
- length += 1
- maxtypelen = max(maxtypelen, length)
-
- def _c_complex_field(self, field, space=''):
- if (field.type.fixed_size() or
- # in case of switch with switch children, don't make the field a pointer
- # necessary for unserialize to work
- (self.is_switch and field.type.is_switch)):
- spacing = ' ' * (maxtypelen - len(field.c_field_type))
- _h('%s %s%s %s%s; /**< */', space, field.c_field_type, spacing, field.c_field_name, field.c_subscript)
- else:
- spacing = ' ' * (maxtypelen - (len(field.c_field_type) + 1))
- _h('%s %s%s *%s%s; /**< */', space, field.c_field_type, spacing, field.c_field_name, field.c_subscript)
-
- if not self.is_switch:
- for field in struct_fields:
- _c_complex_field(self, field)
- else:
- for b in self.bitcases:
- space = ''
- if b.type.has_name:
- _h(' struct _%s {', b.c_field_name)
- space = ' '
- for field in b.type.fields:
- _c_complex_field(self, field, space)
- if b.type.has_name:
- _h(' } %s;', b.c_field_name)
-
- _h('} %s;', self.c_type)
-
-def c_struct(self, name):
- '''
- Exported function that handles structure declarations.
- '''
- _c_type_setup(self, name, ())
- _c_complex(self)
- _c_accessors(self, name, name)
- _c_iterator(self, name)
-
-def c_union(self, name):
- '''
- Exported function that handles union declarations.
- '''
- _c_type_setup(self, name, ())
- _c_complex(self)
- _c_iterator(self, name)
-
-def _c_request_helper(self, name, cookie_type, void, regular, aux=False):
- '''
- Declares a request function.
- '''
-
- # Four stunningly confusing possibilities here:
- #
- # Void Non-void
- # ------------------------------
- # "req" "req"
- # 0 flag CHECKED flag Normal Mode
- # void_cookie req_cookie
- # ------------------------------
- # "req_checked" "req_unchecked"
- # CHECKED flag 0 flag Abnormal Mode
- # void_cookie req_cookie
- # ------------------------------
-
-
- # Whether we are _checked or _unchecked
- checked = void and not regular
- unchecked = not void and not regular
-
- # What kind of cookie we return
- func_cookie = 'xcb_void_cookie_t' if void else self.c_cookie_type
-
- # What flag is passed to xcb_request
- func_flags = '0' if (void and regular) or (not void and not regular) else 'XCB_REQUEST_CHECKED'
-
- # Global extension id variable or NULL for xproto
- func_ext_global = '&' + _ns.c_ext_global_name if _ns.is_ext else '0'
-
- # What our function name is
- func_name = self.c_request_name if not aux else self.c_aux_name
- if checked:
- func_name = self.c_checked_name if not aux else self.c_aux_checked_name
- if unchecked:
- func_name = self.c_unchecked_name if not aux else self.c_aux_unchecked_name
-
- param_fields = []
- wire_fields = []
- maxtypelen = len('xcb_connection_t')
- serial_fields = []
- # special case: list with variable size elements
- list_with_var_size_elems = False
-
- for field in self.fields:
- if field.visible:
- # The field should appear as a call parameter
- param_fields.append(field)
- if field.wire and not field.auto:
- # We need to set the field up in the structure
- wire_fields.append(field)
- if field.type.need_serialize or field.type.need_sizeof:
- serial_fields.append(field)
-
- for field in param_fields:
- c_field_const_type = field.c_field_const_type
- if field.type.need_serialize and not aux:
- c_field_const_type = "const void"
- if len(c_field_const_type) > maxtypelen:
- maxtypelen = len(c_field_const_type)
- if field.type.is_list and not field.type.member.fixed_size():
- list_with_var_size_elems = True
-
- _h_setlevel(1)
- _c_setlevel(1)
- _h('')
- _h('/**')
- _h(' * Delivers a request to the X server')
- _h(' * @param c The connection')
- _h(' * @return A cookie')
- _h(' *')
- _h(' * Delivers a request to the X server.')
- _h(' * ')
- if checked:
- _h(' * This form can be used only if the request will not cause')
- _h(' * a reply to be generated. Any returned error will be')
- _h(' * saved for handling by xcb_request_check().')
- if unchecked:
- _h(' * This form can be used only if the request will cause')
- _h(' * a reply to be generated. Any returned error will be')
- _h(' * placed in the event queue.')
- _h(' */')
- _c('')
- _hc('')
- _hc('/*****************************************************************************')
- _hc(' **')
- _hc(' ** %s %s', cookie_type, func_name)
- _hc(' ** ')
-
- spacing = ' ' * (maxtypelen - len('xcb_connection_t'))
- _hc(' ** @param xcb_connection_t%s *c', spacing)
-
- for field in param_fields:
- c_field_const_type = field.c_field_const_type
- if field.type.need_serialize and not aux:
- c_field_const_type = "const void"
- spacing = ' ' * (maxtypelen - len(c_field_const_type))
- _hc(' ** @param %s%s %s%s', c_field_const_type, spacing, field.c_pointer, field.c_field_name)
-
- _hc(' ** @returns %s', cookie_type)
- _hc(' **')
- _hc(' *****************************************************************************/')
- _hc(' ')
- _hc('%s', cookie_type)
-
- spacing = ' ' * (maxtypelen - len('xcb_connection_t'))
- comma = ',' if len(param_fields) else ');'
- _h('%s (xcb_connection_t%s *c /**< */%s', func_name, spacing, comma)
- comma = ',' if len(param_fields) else ')'
- _c('%s (xcb_connection_t%s *c /**< */%s', func_name, spacing, comma)
-
- func_spacing = ' ' * (len(func_name) + 2)
- count = len(param_fields)
- for field in param_fields:
- count = count - 1
- c_field_const_type = field.c_field_const_type
- c_pointer = field.c_pointer
- if field.type.need_serialize and not aux:
- c_field_const_type = "const void"
- c_pointer = '*'
- spacing = ' ' * (maxtypelen - len(c_field_const_type))
- comma = ',' if count else ');'
- _h('%s%s%s %s%s /**< */%s', func_spacing, c_field_const_type,
- spacing, c_pointer, field.c_field_name, comma)
- comma = ',' if count else ')'
- _c('%s%s%s %s%s /**< */%s', func_spacing, c_field_const_type,
- spacing, c_pointer, field.c_field_name, comma)
-
- count = 2
- if not self.var_followed_by_fixed_fields:
- for field in param_fields:
- if not field.type.fixed_size():
- count = count + 2
- if field.type.need_serialize:
- # _serialize() keeps track of padding automatically
- count -= 1
- dimension = count + 2
-
- _c('{')
- _c(' static const xcb_protocol_request_t xcb_req = {')
- _c(' /* count */ %d,', count)
- _c(' /* ext */ %s,', func_ext_global)
- _c(' /* opcode */ %s,', self.c_request_name.upper())
- _c(' /* isvoid */ %d', 1 if void else 0)
- _c(' };')
- _c(' ')
-
- _c(' struct iovec xcb_parts[%d];', dimension)
- _c(' %s xcb_ret;', func_cookie)
- _c(' %s xcb_out;', self.c_type)
- if self.var_followed_by_fixed_fields:
- _c(' /* in the protocol description, variable size fields are followed by fixed size fields */')
- _c(' void *xcb_aux = 0;')
-
-
- for idx, f in enumerate(serial_fields):
- if aux:
- _c(' void *xcb_aux%d = 0;' % (idx))
- if list_with_var_size_elems:
- _c(' unsigned int i;')
- _c(' unsigned int xcb_tmp_len;')
- _c(' char *xcb_tmp;')
- _c(' ')
- # simple request call tracing
-# _c(' printf("in function %s\\n");' % func_name)
-
- # fixed size fields
- for field in wire_fields:
- if field.type.fixed_size():
- if field.type.is_expr:
- _c(' xcb_out.%s = %s;', field.c_field_name, _c_accessor_get_expr(field.type.expr, None))
- elif field.type.is_pad:
- if field.type.nmemb == 1:
- _c(' xcb_out.%s = 0;', field.c_field_name)
- else:
- _c(' memset(xcb_out.%s, 0, %d);', field.c_field_name, field.type.nmemb)
- else:
- if field.type.nmemb == 1:
- _c(' xcb_out.%s = %s;', field.c_field_name, field.c_field_name)
- else:
- _c(' memcpy(xcb_out.%s, %s, %d);', field.c_field_name, field.c_field_name, field.type.nmemb)
-
- def get_serialize_args(type_obj, c_field_name, aux_var, context='serialize'):
- serialize_args = get_serialize_params(context, type_obj,
- c_field_name,
- aux_var)[2]
- return reduce(lambda x,y: "%s, %s" % (x,y), [a[2] for a in serialize_args])
-
- # calls in order to free dyn. all. memory
- free_calls = []
-
- _c(' ')
- if not self.var_followed_by_fixed_fields:
- _c(' xcb_parts[2].iov_base = (char *) &xcb_out;')
- _c(' xcb_parts[2].iov_len = sizeof(xcb_out);')
- _c(' xcb_parts[3].iov_base = 0;')
- _c(' xcb_parts[3].iov_len = -xcb_parts[2].iov_len & 3;')
-
- count = 4
-
- for field in param_fields:
- if not field.type.fixed_size():
- _c(' /* %s %s */', field.type.c_type, field.c_field_name)
- # default: simple cast to char *
- if not field.type.need_serialize and not field.type.need_sizeof:
- _c(' xcb_parts[%d].iov_base = (char *) %s;', count, field.c_field_name)
- if field.type.is_list:
- if field.type.member.fixed_size():
- _c(' xcb_parts[%d].iov_len = %s * sizeof(%s);', count,
- _c_accessor_get_expr(field.type.expr, None),
- field.type.member.c_wiretype)
- else:
- list_length = _c_accessor_get_expr(field.type.expr, None)
-
- length = ''
- _c(" xcb_parts[%d].iov_len = 0;" % count)
- _c(" xcb_tmp = (char *)%s;", field.c_field_name)
- _c(" for(i=0; i<%s; i++) {" % list_length)
- _c(" xcb_tmp_len = %s(xcb_tmp);" %
- (field.type.c_sizeof_name))
- _c(" xcb_parts[%d].iov_len += xcb_tmp_len;" % count)
- _c(" xcb_tmp += xcb_tmp_len;")
- _c(" }")
- else:
- # not supposed to happen
- raise Exception("unhandled variable size field %s" % field.c_field_name)
- else:
- if not aux:
- _c(' xcb_parts[%d].iov_base = (char *) %s;', count, field.c_field_name)
- idx = serial_fields.index(field)
- aux_var = '&xcb_aux%d' % idx
- context = 'serialize' if aux else 'sizeof'
- _c(' xcb_parts[%d].iov_len = ', count)
- if aux:
- serialize_args = get_serialize_args(field.type, aux_var, field.c_field_name, context)
- _c(' %s (%s);', field.type.c_serialize_name, serialize_args)
- _c(' xcb_parts[%d].iov_base = xcb_aux%d;' % (count, idx))
- free_calls.append(' free(xcb_aux%d);' % idx)
- else:
- serialize_args = get_serialize_args(field.type, field.c_field_name, aux_var, context)
- func_name = field.type.c_sizeof_name
- _c(' %s (%s);', func_name, serialize_args)
-
- count += 1
- if not (field.type.need_serialize or field.type.need_sizeof):
- # the _serialize() function keeps track of padding automatically
- _c(' xcb_parts[%d].iov_base = 0;', count)
- _c(' xcb_parts[%d].iov_len = -xcb_parts[%d].iov_len & 3;', count, count-1)
- count += 1
-
- # elif self.var_followed_by_fixed_fields:
- else:
- _c(' xcb_parts[2].iov_base = (char *) &xcb_out;')
- # request header: opcodes + length
- _c(' xcb_parts[2].iov_len = 2*sizeof(uint8_t) + sizeof(uint16_t);')
- count += 1
- # call _serialize()
- buffer_var = '&xcb_aux'
- serialize_args = get_serialize_args(self, buffer_var, '&xcb_out', 'serialize')
- _c(' xcb_parts[%d].iov_len = %s (%s);', count, self.c_serialize_name, serialize_args)
- _c(' xcb_parts[%d].iov_base = (char *) xcb_aux;', count)
- free_calls.append(' free(xcb_aux);')
- # no padding necessary - _serialize() keeps track of padding automatically
-
- _c(' ')
- _c(' xcb_ret.sequence = xcb_send_request(c, %s, xcb_parts + 2, &xcb_req);', func_flags)
-
- # free dyn. all. data, if any
- for f in free_calls:
- _c(f)
- _c(' return xcb_ret;')
- _c('}')
-
-def _c_reply(self, name):
- '''
- Declares the function that returns the reply structure.
- '''
- spacing1 = ' ' * (len(self.c_cookie_type) - len('xcb_connection_t'))
- spacing2 = ' ' * (len(self.c_cookie_type) - len('xcb_generic_error_t'))
- spacing3 = ' ' * (len(self.c_reply_name) + 2)
-
- # check if _unserialize() has to be called for any field
- def look_for_special_cases(complex_obj):
- unserialize_fields = []
- # no unserialize call in case of switch
- if not complex_obj.is_switch:
- for field in complex_obj.fields:
- # three cases: 1. field with special case
- # 2. container that contains special case field
- # 3. list with special case elements
- if field.type.var_followed_by_fixed_fields:
- unserialize_fields.append(field)
- elif field.type.is_container:
- unserialize_fields += look_for_special_cases(field.type)
- elif field.type.is_list:
- if field.type.member.var_followed_by_fixed_fields:
- unserialize_fields.append(field)
- if field.type.member.is_container:
- unserialize_fields += look_for_special_cases(field.type.member)
- return unserialize_fields
-
- unserialize_fields = look_for_special_cases(self.reply)
-
- _h('')
- _h('/**')
- _h(' * Return the reply')
- _h(' * @param c The connection')
- _h(' * @param cookie The cookie')
- _h(' * @param e The xcb_generic_error_t supplied')
- _h(' *')
- _h(' * Returns the reply of the request asked by')
- _h(' * ')
- _h(' * The parameter @p e supplied to this function must be NULL if')
- _h(' * %s(). is used.', self.c_unchecked_name)
- _h(' * Otherwise, it stores the error if any.')
- _h(' *')
- _h(' * The returned value must be freed by the caller using free().')
- _h(' */')
- _c('')
- _hc('')
- _hc('/*****************************************************************************')
- _hc(' **')
- _hc(' ** %s * %s', self.c_reply_type, self.c_reply_name)
- _hc(' ** ')
- _hc(' ** @param xcb_connection_t%s *c', spacing1)
- _hc(' ** @param %s cookie', self.c_cookie_type)
- _hc(' ** @param xcb_generic_error_t%s **e', spacing2)
- _hc(' ** @returns %s *', self.c_reply_type)
- _hc(' **')
- _hc(' *****************************************************************************/')
- _hc(' ')
- _hc('%s *', self.c_reply_type)
- _hc('%s (xcb_connection_t%s *c /**< */,', self.c_reply_name, spacing1)
- _hc('%s%s cookie /**< */,', spacing3, self.c_cookie_type)
- _h('%sxcb_generic_error_t%s **e /**< */);', spacing3, spacing2)
- _c('%sxcb_generic_error_t%s **e /**< */)', spacing3, spacing2)
- _c('{')
-
- if len(unserialize_fields)>0:
- # certain variable size fields need to be unserialized explicitly
- _c(' %s *reply = (%s *) xcb_wait_for_reply(c, cookie.sequence, e);',
- self.c_reply_type, self.c_reply_type)
- _c(' int i;')
- for field in unserialize_fields:
- if field.type.is_list:
- _c(' %s %s_iter = %s(reply);', field.c_iterator_type, field.c_field_name, field.c_iterator_name)
- _c(' int %s_len = %s(reply);', field.c_field_name, field.c_length_name)
- _c(' %s *%s_data;', field.c_field_type, field.c_field_name)
- else:
- raise Exception('not implemented: call _unserialize() in reply for non-list type %s', field.c_field_type)
- # call _unserialize(), using the reply as source and target buffer
- _c(' /* special cases: transform parts of the reply to match XCB data structures */')
- for field in unserialize_fields:
- if field.type.is_list:
- _c(' for(i=0; i<%s_len; i++) {', field.c_field_name)
- _c(' %s_data = %s_iter.data;', field.c_field_name, field.c_field_name)
- _c(' %s((const void *)%s_data, &%s_data);', field.type.c_unserialize_name,
- field.c_field_name, field.c_field_name)
- _c(' %s(&%s_iter);', field.type.c_next_name, field.c_field_name)
- _c(' }')
- # return the transformed reply
- _c(' return reply;')
-
- else:
- _c(' return (%s *) xcb_wait_for_reply(c, cookie.sequence, e);', self.c_reply_type)
-
- _c('}')
-
-def _c_opcode(name, opcode):
- '''
- Declares the opcode define for requests, events, and errors.
- '''
- _h_setlevel(0)
- _h('')
- _h('/** Opcode for %s. */', _n(name))
- _h('#define %s %s', _n(name).upper(), opcode)
-
-def _c_cookie(self, name):
- '''
- Declares the cookie type for a non-void request.
- '''
- _h_setlevel(0)
- _h('')
- _h('/**')
- _h(' * @brief %s', self.c_cookie_type)
- _h(' **/')
- _h('typedef struct %s {', self.c_cookie_type)
- _h(' unsigned int sequence; /**< */')
- _h('} %s;', self.c_cookie_type)
-
-def c_request(self, name):
- '''
- Exported function that handles request declarations.
- '''
- _c_type_setup(self, name, ('request',))
-
- if self.reply:
- # Cookie type declaration
- _c_cookie(self, name)
-
- # Opcode define
- _c_opcode(name, self.opcode)
-
- # Request structure declaration
- _c_complex(self)
-
- if self.reply:
- _c_type_setup(self.reply, name, ('reply',))
- # Reply structure definition
- _c_complex(self.reply)
- # Request prototypes
- _c_request_helper(self, name, self.c_cookie_type, False, True)
- _c_request_helper(self, name, self.c_cookie_type, False, False)
- if self.need_aux:
- _c_request_helper(self, name, self.c_cookie_type, False, True, True)
- _c_request_helper(self, name, self.c_cookie_type, False, False, True)
- # Reply accessors
- _c_accessors(self.reply, name + ('reply',), name)
- _c_reply(self, name)
- else:
- # Request prototypes
- _c_request_helper(self, name, 'xcb_void_cookie_t', True, False)
- _c_request_helper(self, name, 'xcb_void_cookie_t', True, True)
- if self.need_aux:
- _c_request_helper(self, name, 'xcb_void_cookie_t', True, False, True)
- _c_request_helper(self, name, 'xcb_void_cookie_t', True, True, True)
-
-
-def c_event(self, name):
- '''
- Exported function that handles event declarations.
- '''
- _c_type_setup(self, name, ('event',))
-
- # Opcode define
- _c_opcode(name, self.opcodes[name])
-
- if self.name == name:
- # Structure definition
- _c_complex(self)
- else:
- # Typedef
- _h('')
- _h('typedef %s %s;', _t(self.name + ('event',)), _t(name + ('event',)))
-
-def c_error(self, name):
- '''
- Exported function that handles error declarations.
- '''
- _c_type_setup(self, name, ('error',))
-
- # Opcode define
- _c_opcode(name, self.opcodes[name])
-
- if self.name == name:
- # Structure definition
- _c_complex(self)
- else:
- # Typedef
- _h('')
- _h('typedef %s %s;', _t(self.name + ('error',)), _t(name + ('error',)))
-
-
-# Main routine starts here
-
-# Must create an "output" dictionary before any xcbgen imports.
-output = {'open' : c_open,
- 'close' : c_close,
- 'simple' : c_simple,
- 'enum' : c_enum,
- 'struct' : c_struct,
- 'union' : c_union,
- 'request' : c_request,
- 'event' : c_event,
- 'error' : c_error,
- }
-
-# Boilerplate below this point
-
-# Check for the argument that specifies path to the xcbgen python package.
-try:
- opts, args = getopt.getopt(sys.argv[1:], 'p:')
-except getopt.GetoptError as err:
- print(err)
- print('Usage: c_client.py [-p path] file.xml')
- sys.exit(1)
-
-for (opt, arg) in opts:
- if opt == '-p':
- sys.path.insert(1, arg)
-
-# Import the module class
-try:
- from xcbgen.state import Module
-except ImportError:
- print('''
-Failed to load the xcbgen Python package!
-Make sure that xcb/proto installed it on your Python path.
-If not, you will need to create a .pth file or define $PYTHONPATH
-to extend the path.
-Refer to the README file in xcb/proto for more info.
-''')
- raise
-
-# Parse the xml header
-module = Module(args[0], output)
-
-# Build type-registry and resolve type dependencies
-module.register()
-module.resolve()
-
-# Output the code
-module.generate()
+#!/usr/bin/env python
+from xml.etree.cElementTree import *
+from os.path import basename
+from functools import reduce
+import getopt
+import sys
+import re
+
+# Jump to the bottom of this file for the main routine
+
+# Some hacks to make the API more readable, and to keep backwards compability
+_cname_re = re.compile('([A-Z0-9][a-z]+|[A-Z0-9]+(?![a-z])|[a-z]+)')
+_cname_special_cases = {'DECnet':'decnet'}
+
+_extension_special_cases = ['XPrint', 'XCMisc', 'BigRequests']
+
+_cplusplus_annoyances = {'class' : '_class',
+ 'new' : '_new',
+ 'delete': '_delete'}
+_c_keywords = {'default' : '_default'}
+
+_hlines = []
+_hlevel = 0
+_clines = []
+_clevel = 0
+_ns = None
+
+# global variable to keep track of serializers and
+# switch data types due to weird dependencies
+finished_serializers = []
+finished_sizeof = []
+finished_switch = []
+
+def _h(fmt, *args):
+ '''
+ Writes the given line to the header file.
+ '''
+ _hlines[_hlevel].append(fmt % args)
+
+def _c(fmt, *args):
+ '''
+ Writes the given line to the source file.
+ '''
+ _clines[_clevel].append(fmt % args)
+
+def _hc(fmt, *args):
+ '''
+ Writes the given line to both the header and source files.
+ '''
+ _h(fmt, *args)
+ _c(fmt, *args)
+
+# XXX See if this level thing is really necessary.
+def _h_setlevel(idx):
+ '''
+ Changes the array that header lines are written to.
+ Supports writing different sections of the header file.
+ '''
+ global _hlevel
+ while len(_hlines) <= idx:
+ _hlines.append([])
+ _hlevel = idx
+
+def _c_setlevel(idx):
+ '''
+ Changes the array that source lines are written to.
+ Supports writing to different sections of the source file.
+ '''
+ global _clevel
+ while len(_clines) <= idx:
+ _clines.append([])
+ _clevel = idx
+
+def _n_item(str):
+ '''
+ Does C-name conversion on a single string fragment.
+ Uses a regexp with some hard-coded special cases.
+ '''
+ if str in _cname_special_cases:
+ return _cname_special_cases[str]
+ else:
+ split = _cname_re.finditer(str)
+ name_parts = [match.group(0) for match in split]
+ return '_'.join(name_parts)
+
+def _cpp(str):
+ '''
+ Checks for certain C++ reserved words and fixes them.
+ '''
+ if str in _cplusplus_annoyances:
+ return _cplusplus_annoyances[str]
+ elif str in _c_keywords:
+ return _c_keywords[str]
+ else:
+ return str
+
+def _ext(str):
+ '''
+ Does C-name conversion on an extension name.
+ Has some additional special cases on top of _n_item.
+ '''
+ if str in _extension_special_cases:
+ return _n_item(str).lower()
+ else:
+ return str.lower()
+
+def _n(list):
+ '''
+ Does C-name conversion on a tuple of strings.
+ Different behavior depending on length of tuple, extension/not extension, etc.
+ Basically C-name converts the individual pieces, then joins with underscores.
+ '''
+ if len(list) == 1:
+ parts = list
+ elif len(list) == 2:
+ parts = [list[0], _n_item(list[1])]
+ elif _ns.is_ext:
+ parts = [list[0], _ext(list[1])] + [_n_item(i) for i in list[2:]]
+ else:
+ parts = [list[0]] + [_n_item(i) for i in list[1:]]
+ return '_'.join(parts).lower()
+
+def _t(list):
+ '''
+ Does C-name conversion on a tuple of strings representing a type.
+ Same as _n but adds a "_t" on the end.
+ '''
+ if len(list) == 1:
+ parts = list
+ elif len(list) == 2:
+ parts = [list[0], _n_item(list[1]), 't']
+ elif _ns.is_ext:
+ parts = [list[0], _ext(list[1])] + [_n_item(i) for i in list[2:]] + ['t']
+ else:
+ parts = [list[0]] + [_n_item(i) for i in list[1:]] + ['t']
+ return '_'.join(parts).lower()
+
+
+def c_open(self):
+ '''
+ Exported function that handles module open.
+ Opens the files and writes out the auto-generated comment, header file includes, etc.
+ '''
+ global _ns
+ _ns = self.namespace
+ _ns.c_ext_global_name = _n(_ns.prefix + ('id',))
+
+ # Build the type-name collision avoidance table used by c_enum
+ build_collision_table()
+
+ _h_setlevel(0)
+ _c_setlevel(0)
+
+ _hc('/*')
+ _hc(' * This file generated automatically from %s by c_client.py.', _ns.file)
+ _hc(' * Edit at your peril.')
+ _hc(' */')
+ _hc('')
+
+ _h('/**')
+ _h(' * @defgroup XCB_%s_API XCB %s API', _ns.ext_name, _ns.ext_name)
+ _h(' * @brief %s XCB Protocol Implementation.', _ns.ext_name)
+ _h(' * @{')
+ _h(' **/')
+ _h('')
+ _h('#ifndef __%s_H', _ns.header.upper())
+ _h('#define __%s_H', _ns.header.upper())
+ _h('')
+ _h('#include "xcb.h"')
+
+ _c('#include <stdlib.h>')
+ _c('#include <string.h>')
+ _c('#include <assert.h>')
+ _c('#include <stddef.h> /* for offsetof() */')
+ _c('#include "xcbext.h"')
+ _c('#include "%s.h"', _ns.header)
+ _c('#include <X11/Xtrans/Xtrans.h>')
+
+ _c('')
+ _c('#define ALIGNOF(type) offsetof(struct { char dummy; type member; }, member)')
+
+ if _ns.is_ext:
+ for (n, h) in self.imports:
+ _hc('#include "%s.h"', h)
+
+ _h('')
+ _h('#ifdef __cplusplus')
+ _h('extern "C" {')
+ _h('#endif')
+
+ if _ns.is_ext:
+ _h('')
+ _h('#define XCB_%s_MAJOR_VERSION %s', _ns.ext_name.upper(), _ns.major_version)
+ _h('#define XCB_%s_MINOR_VERSION %s', _ns.ext_name.upper(), _ns.minor_version)
+ _h(' ') #XXX
+ _h('extern xcb_extension_t %s;', _ns.c_ext_global_name)
+
+ _c('')
+ _c('xcb_extension_t %s = { "%s", 0 };', _ns.c_ext_global_name, _ns.ext_xname)
+
+def c_close(self):
+ '''
+ Exported function that handles module close.
+ Writes out all the stored content lines, then closes the files.
+ '''
+ _h_setlevel(2)
+ _c_setlevel(2)
+ _hc('')
+
+ _h('')
+ _h('#ifdef __cplusplus')
+ _h('}')
+ _h('#endif')
+
+ _h('')
+ _h('#endif')
+ _h('')
+ _h('/**')
+ _h(' * @}')
+ _h(' */')
+
+ # Write header file
+ hfile = open('%s.h' % _ns.header, 'w')
+ for list in _hlines:
+ for line in list:
+ hfile.write(line)
+ hfile.write('\n')
+ hfile.close()
+
+ # Write source file
+ cfile = open('%s.c' % _ns.header, 'w')
+ for list in _clines:
+ for line in list:
+ cfile.write(line)
+ cfile.write('\n')
+ cfile.close()
+
+def build_collision_table():
+ global namecount
+ namecount = {}
+
+ for v in module.types.values():
+ name = _t(v[0])
+ namecount[name] = (namecount.get(name) or 0) + 1
+
+def c_enum(self, name):
+ '''
+ Exported function that handles enum declarations.
+ '''
+
+ tname = _t(name)
+ if namecount[tname] > 1:
+ tname = _t(name + ('enum',))
+
+ _h_setlevel(0)
+ _h('')
+ _h('typedef enum %s {', tname)
+
+ count = len(self.values)
+
+ for (enam, eval) in self.values:
+ count = count - 1
+ equals = ' = ' if eval != '' else ''
+ comma = ',' if count > 0 else ''
+ _h(' %s%s%s%s', _n(name + (enam,)).upper(), equals, eval, comma)
+
+ _h('} %s;', tname)
+
+def _c_type_setup(self, name, postfix):
+ '''
+ Sets up all the C-related state by adding additional data fields to
+ all Field and Type objects. Here is where we figure out most of our
+ variable and function names.
+
+ Recurses into child fields and list member types.
+ '''
+ # Do all the various names in advance
+ self.c_type = _t(name + postfix)
+ self.c_wiretype = 'char' if self.c_type == 'void' else self.c_type
+
+ self.c_iterator_type = _t(name + ('iterator',))
+ self.c_next_name = _n(name + ('next',))
+ self.c_end_name = _n(name + ('end',))
+
+ self.c_request_name = _n(name)
+ self.c_checked_name = _n(name + ('checked',))
+ self.c_unchecked_name = _n(name + ('unchecked',))
+ self.c_reply_name = _n(name + ('reply',))
+ self.c_reply_type = _t(name + ('reply',))
+ self.c_cookie_type = _t(name + ('cookie',))
+
+ self.need_aux = False
+ self.need_serialize = False
+ self.need_sizeof = False
+
+ self.c_aux_name = _n(name + ('aux',))
+ self.c_aux_checked_name = _n(name + ('aux', 'checked'))
+ self.c_aux_unchecked_name = _n(name + ('aux', 'unchecked'))
+ self.c_serialize_name = _n(name + ('serialize',))
+ self.c_unserialize_name = _n(name + ('unserialize',))
+ self.c_unpack_name = _n(name + ('unpack',))
+ self.c_sizeof_name = _n(name + ('sizeof',))
+
+ # special case: structs where variable size fields are followed by fixed size fields
+ self.var_followed_by_fixed_fields = False
+
+ if self.is_switch:
+ self.need_serialize = True
+ self.c_container = 'struct'
+ for bitcase in self.bitcases:
+ bitcase.c_field_name = _cpp(bitcase.field_name)
+ bitcase_name = bitcase.field_type if bitcase.type.has_name else name
+ _c_type_setup(bitcase.type, bitcase_name, ())
+
+ elif self.is_container:
+
+ self.c_container = 'union' if self.is_union else 'struct'
+ prev_varsized_field = None
+ prev_varsized_offset = 0
+ first_field_after_varsized = None
+
+ for field in self.fields:
+ _c_type_setup(field.type, field.field_type, ())
+ if field.type.is_list:
+ _c_type_setup(field.type.member, field.field_type, ())
+ if (field.type.nmemb is None):
+ self.need_sizeof = True
+
+ field.c_field_type = _t(field.field_type)
+ field.c_field_const_type = ('' if field.type.nmemb == 1 else 'const ') + field.c_field_type
+ field.c_field_name = _cpp(field.field_name)
+ field.c_subscript = '[%d]' % field.type.nmemb if (field.type.nmemb and field.type.nmemb > 1) else ''
+ field.c_pointer = ' ' if field.type.nmemb == 1 else '*'
+
+ # correct the c_pointer field for variable size non-list types
+ if not field.type.fixed_size() and field.c_pointer == ' ':
+ field.c_pointer = '*'
+ if field.type.is_list and not field.type.member.fixed_size():
+ field.c_pointer = '*'
+
+ if field.type.is_switch:
+ field.c_pointer = '*'
+ field.c_field_const_type = 'const ' + field.c_field_type
+ self.need_aux = True
+ elif not field.type.fixed_size() and not field.type.is_bitcase:
+ self.need_sizeof = True
+
+ field.c_iterator_type = _t(field.field_type + ('iterator',)) # xcb_fieldtype_iterator_t
+ field.c_iterator_name = _n(name + (field.field_name, 'iterator')) # xcb_container_field_iterator
+ field.c_accessor_name = _n(name + (field.field_name,)) # xcb_container_field
+ field.c_length_name = _n(name + (field.field_name, 'length')) # xcb_container_field_length
+ field.c_end_name = _n(name + (field.field_name, 'end')) # xcb_container_field_end
+
+ field.prev_varsized_field = prev_varsized_field
+ field.prev_varsized_offset = prev_varsized_offset
+
+ if prev_varsized_offset == 0:
+ first_field_after_varsized = field
+ field.first_field_after_varsized = first_field_after_varsized
+
+ if field.type.fixed_size():
+ prev_varsized_offset += field.type.size
+ # special case: intermixed fixed and variable size fields
+ if prev_varsized_field is not None and not field.type.is_pad and field.wire:
+ if not self.is_union:
+ self.need_serialize = True
+ self.var_followed_by_fixed_fields = True
+ else:
+ self.last_varsized_field = field
+ prev_varsized_field = field
+ prev_varsized_offset = 0
+
+ if self.var_followed_by_fixed_fields:
+ if field.type.fixed_size():
+ field.prev_varsized_field = None
+
+ if self.need_serialize:
+ # when _unserialize() is wanted, create _sizeof() as well for consistency reasons
+ self.need_sizeof = True
+
+ # as switch does never appear at toplevel,
+ # continue here with type construction
+ if self.is_switch:
+ if self.c_type not in finished_switch:
+ finished_switch.append(self.c_type)
+ # special: switch C structs get pointer fields for variable-sized members
+ _c_complex(self)
+ for bitcase in self.bitcases:
+ bitcase_name = bitcase.type.name if bitcase.type.has_name else name
+ _c_accessors(bitcase.type, bitcase_name, bitcase_name)
+ # no list with switch as element, so no call to
+ # _c_iterator(field.type, field_name) necessary
+
+ if not self.is_bitcase:
+ if self.need_serialize:
+ if self.c_serialize_name not in finished_serializers:
+ finished_serializers.append(self.c_serialize_name)
+ _c_serialize('serialize', self)
+
+ # _unpack() and _unserialize() are only needed for special cases:
+ # switch -> unpack
+ # special cases -> unserialize
+ if self.is_switch or self.var_followed_by_fixed_fields:
+ _c_serialize('unserialize', self)
+
+ if self.need_sizeof:
+ if self.c_sizeof_name not in finished_sizeof:
+ if not module.namespace.is_ext or self.name[:2] == module.namespace.prefix:
+ finished_sizeof.append(self.c_sizeof_name)
+ _c_serialize('sizeof', self)
+# _c_type_setup()
+
+def _c_helper_absolute_name(prefix, field=None):
+ """
+ turn prefix, which is a list of tuples (name, separator, Type obj) into a string
+ representing a valid name in C (based on the context)
+ if field is not None, append the field name as well
+ """
+ prefix_str = ''
+ for name, sep, obj in prefix:
+ prefix_str += name
+ if '' == sep:
+ sep = '->'
+ if ((obj.is_bitcase and obj.has_name) or # named bitcase
+ (obj.is_switch and len(obj.parents)>1)):
+ sep = '.'
+ prefix_str += sep
+ if field is not None:
+ prefix_str += _cpp(field.field_name)
+ return prefix_str
+# _c_absolute_name
+
+def _c_helper_field_mapping(complex_type, prefix, flat=False):
+ """
+ generate absolute names, based on prefix, for all fields starting from complex_type
+ if flat == True, nested complex types are not taken into account
+ """
+ all_fields = {}
+ if complex_type.is_switch:
+ for b in complex_type.bitcases:
+ if b.type.has_name:
+ switch_name, switch_sep, switch_type = prefix[-1]
+ bitcase_prefix = prefix + [(b.type.name[-1], '.', b.type)]
+ else:
+ bitcase_prefix = prefix
+
+ if (True==flat and not b.type.has_name) or False==flat:
+ all_fields.update(_c_helper_field_mapping(b.type, bitcase_prefix, flat))
+ else:
+ for f in complex_type.fields:
+ fname = _c_helper_absolute_name(prefix, f)
+ if f.field_name in all_fields:
+ raise Exception("field name %s has been registered before" % f.field_name)
+
+ all_fields[f.field_name] = (fname, f)
+ if f.type.is_container and flat==False:
+ if f.type.is_bitcase and not f.type.has_name:
+ new_prefix = prefix
+ elif f.type.is_switch and len(f.type.parents)>1:
+ # nested switch gets another separator
+ new_prefix = prefix+[(f.c_field_name, '.', f.type)]
+ else:
+ new_prefix = prefix+[(f.c_field_name, '->', f.type)]
+ all_fields.update(_c_helper_field_mapping(f.type, new_prefix, flat))
+
+ return all_fields
+# _c_field_mapping()
+
+def _c_helper_resolve_field_names (prefix):
+ """
+ get field names for all objects in the prefix array
+ """
+ all_fields = {}
+ tmp_prefix = []
+ # look for fields in the remaining containers
+ for idx, p in enumerate(prefix):
+ name, sep, obj = p
+ if ''==sep:
+ # sep can be preset in prefix, if not, make a sensible guess
+ sep = '.' if (obj.is_switch or obj.is_bitcase) else '->'
+ # exception: 'toplevel' object (switch as well!) always have sep '->'
+ sep = '->' if idx<1 else sep
+ if not obj.is_bitcase or (obj.is_bitcase and obj.has_name):
+ tmp_prefix.append((name, sep, obj))
+ all_fields.update(_c_helper_field_mapping(obj, tmp_prefix, flat=True))
+
+ return all_fields
+# _c_helper_resolve_field_names
+
+def get_expr_fields(self):
+ """
+ get the Fields referenced by switch or list expression
+ """
+ def get_expr_field_names(expr):
+ if expr.op is None:
+ if expr.lenfield_name is not None:
+ return [expr.lenfield_name]
+ else:
+ # constant value expr
+ return []
+ else:
+ if expr.op == '~':
+ return get_expr_field_names(expr.rhs)
+ elif expr.op == 'popcount':
+ return get_expr_field_names(expr.rhs)
+ elif expr.op == 'sumof':
+ # sumof expr references another list,
+ # we need that list's length field here
+ field = None
+ for f in expr.lenfield_parent.fields:
+ if f.field_name == expr.lenfield_name:
+ field = f
+ break
+ if field is None:
+ raise Exception("list field '%s' referenced by sumof not found" % expr.lenfield_name)
+ # referenced list + its length field
+ return [expr.lenfield_name] + get_expr_field_names(field.type.expr)
+ elif expr.op == 'enumref':
+ return []
+ else:
+ return get_expr_field_names(expr.lhs) + get_expr_field_names(expr.rhs)
+ # get_expr_field_names()
+
+ # resolve the field names with the parent structure(s)
+ unresolved_fields_names = get_expr_field_names(self.expr)
+
+ # construct prefix from self
+ prefix = [('', '', p) for p in self.parents]
+ if self.is_container:
+ prefix.append(('', '', self))
+
+ all_fields = _c_helper_resolve_field_names (prefix)
+ resolved_fields_names = list(filter(lambda x: x in all_fields.keys(), unresolved_fields_names))
+ if len(unresolved_fields_names) != len(resolved_fields_names):
+ raise Exception("could not resolve all fields for %s" % self.name)
+
+ resolved_fields = [all_fields[n][1] for n in resolved_fields_names]
+ return resolved_fields
+# get_expr_fields()
+
+def resolve_expr_fields(complex_obj):
+ """
+ find expr fields appearing in complex_obj and descendents that cannot be resolved within complex_obj
+ these are normally fields that need to be given as function parameters
+ """
+ all_fields = []
+ expr_fields = []
+ unresolved = []
+
+ for field in complex_obj.fields:
+ all_fields.append(field)
+ if field.type.is_switch or field.type.is_list:
+ expr_fields += get_expr_fields(field.type)
+ if field.type.is_container:
+ expr_fields += resolve_expr_fields(field.type)
+
+ # try to resolve expr fields
+ for e in expr_fields:
+ if e not in all_fields and e not in unresolved:
+ unresolved.append(e)
+ return unresolved
+# resolve_expr_fields()
+
+def get_serialize_params(context, self, buffer_var='_buffer', aux_var='_aux'):
+ """
+ functions like _serialize(), _unserialize(), and _unpack() sometimes need additional parameters:
+ E.g. in order to unpack switch, extra parameters might be needed to evaluate the switch
+ expression. This function tries to resolve all fields within a structure, and returns the
+ unresolved fields as the list of external parameters.
+ """
+ def add_param(params, param):
+ if param not in params:
+ params.append(param)
+
+ # collect all fields into param_fields
+ param_fields = []
+ wire_fields = []
+
+ for field in self.fields:
+ if field.visible:
+ # the field should appear as a parameter in the function call
+ param_fields.append(field)
+ if field.wire and not field.auto:
+ if field.type.fixed_size() and not self.is_switch:
+ # field in the xcb_out structure
+ wire_fields.append(field)
+ # fields like 'pad0' are skipped!
+
+ # in case of switch, parameters always contain any fields referenced in the switch expr
+ # we do not need any variable size fields here, as the switch data type contains both
+ # fixed and variable size fields
+ if self.is_switch:
+ param_fields = get_expr_fields(self)
+
+ # _serialize()/_unserialize()/_unpack() function parameters
+ # note: don't use set() for params, it is unsorted
+ params = []
+
+ # 1. the parameter for the void * buffer
+ if 'serialize' == context:
+ params.append(('void', '**', buffer_var))
+ elif context in ('unserialize', 'unpack', 'sizeof'):
+ params.append(('const void', '*', buffer_var))
+
+ # 2. any expr fields that cannot be resolved within self and descendants
+ unresolved_fields = resolve_expr_fields(self)
+ for f in unresolved_fields:
+ add_param(params, (f.c_field_type, '', f.c_field_name))
+
+ # 3. param_fields contain the fields necessary to evaluate the switch expr or any other fields
+ # that do not appear in the data type struct
+ for p in param_fields:
+ if self.is_switch:
+ typespec = p.c_field_const_type
+ pointerspec = p.c_pointer
+ add_param(params, (typespec, pointerspec, p.c_field_name))
+ else:
+ if p.visible and not p.wire and not p.auto:
+ typespec = p.c_field_type
+ pointerspec = ''
+ add_param(params, (typespec, pointerspec, p.c_field_name))
+
+ # 4. aux argument
+ if 'serialize' == context:
+ add_param(params, ('const %s' % self.c_type, '*', aux_var))
+ elif 'unserialize' == context:
+ add_param(params, ('%s' % self.c_type, '**', aux_var))
+ elif 'unpack' == context:
+ add_param(params, ('%s' % self.c_type, '*', aux_var))
+
+ # 5. switch contains all variable size fields as struct members
+ # for other data types though, these have to be supplied separately
+ # this is important for the special case of intermixed fixed and
+ # variable size fields
+ if not self.is_switch and 'serialize' == context:
+ for p in param_fields:
+ if not p.type.fixed_size():
+ add_param(params, (p.c_field_const_type, '*', p.c_field_name))
+
+ return (param_fields, wire_fields, params)
+# get_serialize_params()
+
+def _c_serialize_helper_insert_padding(context, code_lines, space, postpone):
+ code_lines.append('%s /* insert padding */' % space)
+ code_lines.append('%s xcb_pad = -xcb_block_len & (xcb_align_to - 1);' % space)
+# code_lines.append('%s printf("automatically inserting padding: %%%%d\\n", xcb_pad);' % space)
+ code_lines.append('%s xcb_buffer_len += xcb_block_len + xcb_pad;' % space)
+
+ if not postpone:
+ code_lines.append('%s if (0 != xcb_pad) {' % space)
+
+ if 'serialize' == context:
+ code_lines.append('%s xcb_parts[xcb_parts_idx].iov_base = xcb_pad0;' % space)
+ code_lines.append('%s xcb_parts[xcb_parts_idx].iov_len = xcb_pad;' % space)
+ code_lines.append('%s xcb_parts_idx++;' % space)
+ elif context in ('unserialize', 'unpack', 'sizeof'):
+ code_lines.append('%s xcb_tmp += xcb_pad;' % space)
+
+ code_lines.append('%s xcb_pad = 0;' % space)
+ code_lines.append('%s }' % space)
+
+ code_lines.append('%s xcb_block_len = 0;' % space)
+
+ # keep tracking of xcb_parts entries for serialize
+ return 1
+# _c_serialize_helper_insert_padding()
+
+def _c_serialize_helper_switch(context, self, complex_name,
+ code_lines, temp_vars,
+ space, prefix):
+ count = 0
+ switch_expr = _c_accessor_get_expr(self.expr, None)
+
+ for b in self.bitcases:
+ bitcase_expr = _c_accessor_get_expr(b.type.expr, None)
+ code_lines.append(' if(%s & %s) {' % (switch_expr, bitcase_expr))
+# code_lines.append(' printf("switch %s: entering bitcase section %s (mask=%%%%d)...\\n", %s);' %
+# (self.name[-1], b.type.name[-1], bitcase_expr))
+ b_prefix = prefix
+ if b.type.has_name:
+ b_prefix = prefix + [(b.c_field_name, '.', b.type)]
+
+ count += _c_serialize_helper_fields(context, b.type,
+ code_lines, temp_vars,
+ "%s " % space,
+ b_prefix,
+ is_bitcase = True)
+ code_lines.append(' }')
+
+# if 'serialize' == context:
+# count += _c_serialize_helper_insert_padding(context, code_lines, space, False)
+# elif context in ('unserialize', 'unpack', 'sizeof'):
+# # padding
+# code_lines.append('%s xcb_pad = -xcb_block_len & 3;' % space)
+# code_lines.append('%s xcb_buffer_len += xcb_block_len + xcb_pad;' % space)
+
+ return count
+# _c_serialize_helper_switch
+
+def _c_serialize_helper_switch_field(context, self, field, c_switch_variable, prefix):
+ """
+ handle switch by calling _serialize() or _unpack(), depending on context
+ """
+ # switch is handled by this function as a special case
+ param_fields, wire_fields, params = get_serialize_params(context, self)
+ field_mapping = _c_helper_field_mapping(self, prefix)
+ prefix_str = _c_helper_absolute_name(prefix)
+
+ # find the parameters that need to be passed to _serialize()/_unpack():
+ # all switch expr fields must be given as parameters
+ args = get_expr_fields(field.type)
+ # length fields for variable size types in switch, normally only some of need
+ # need to be passed as parameters
+ switch_len_fields = resolve_expr_fields(field.type)
+
+ # a switch field at this point _must_ be a bitcase field
+ # we require that bitcases are "self-contiguous"
+ bitcase_unresolved = resolve_expr_fields(self)
+ if len(bitcase_unresolved) != 0:
+ raise Exception('unresolved fields within bitcase is not supported at this point')
+
+ # get the C names for the parameters
+ c_field_names = ''
+ for a in switch_len_fields:
+ c_field_names += "%s, " % field_mapping[a.c_field_name][0]
+ for a in args:
+ c_field_names += "%s, " % field_mapping[a.c_field_name][0]
+
+ # call _serialize()/_unpack() to determine the actual size
+ if 'serialize' == context:
+ length = "%s(&%s, %s&%s%s)" % (field.type.c_serialize_name, c_switch_variable,
+ c_field_names, prefix_str, field.c_field_name)
+ elif context in ('unserialize', 'unpack'):
+ length = "%s(xcb_tmp, %s&%s%s)" % (field.type.c_unpack_name,
+ c_field_names, prefix_str, field.c_field_name)
+
+ return length
+# _c_serialize_helper_switch_field()
+
+def _c_serialize_helper_list_field(context, self, field,
+ code_lines, temp_vars,
+ space, prefix):
+ """
+ helper function to cope with lists of variable length
+ """
+ expr = field.type.expr
+ prefix_str = _c_helper_absolute_name(prefix)
+ param_fields, wire_fields, params = get_serialize_params('sizeof', self)
+ param_names = [p[2] for p in params]
+
+ expr_fields_names = [f.field_name for f in get_expr_fields(field.type)]
+ resolved = list(filter(lambda x: x in param_names, expr_fields_names))
+ unresolved = list(filter(lambda x: x not in param_names, expr_fields_names))
+
+ field_mapping = {}
+ for r in resolved:
+ field_mapping[r] = (r, None)
+
+ if len(unresolved)>0:
+ tmp_prefix = prefix
+ if len(tmp_prefix)==0:
+ raise Exception("found an empty prefix while resolving expr field names for list %s",
+ field.c_field_name)
+
+ field_mapping.update(_c_helper_resolve_field_names(prefix))
+ resolved += list(filter(lambda x: x in field_mapping, unresolved))
+ unresolved = list(filter(lambda x: x not in field_mapping, unresolved))
+ if len(unresolved)>0:
+ raise Exception('could not resolve the length fields required for list %s' % field.c_field_name)
+
+ list_length = _c_accessor_get_expr(expr, field_mapping)
+
+ # default: list with fixed size elements
+ length = '%s * sizeof(%s)' % (list_length, field.type.member.c_wiretype)
+
+ # list with variable-sized elements
+ if not field.type.member.fixed_size():
+ length = ''
+ if context in ('unserialize', 'sizeof', 'unpack'):
+ int_i = ' unsigned int i;'
+ xcb_tmp_len = ' unsigned int xcb_tmp_len;'
+ if int_i not in temp_vars:
+ temp_vars.append(int_i)
+ if xcb_tmp_len not in temp_vars:
+ temp_vars.append(xcb_tmp_len)
+ # loop over all list elements and call sizeof repeatedly
+ # this should be a bit faster than using the iterators
+ code_lines.append("%s for(i=0; i<%s; i++) {" % (space, list_length))
+ code_lines.append("%s xcb_tmp_len = %s(xcb_tmp);" %
+ (space, field.type.c_sizeof_name))
+ code_lines.append("%s xcb_block_len += xcb_tmp_len;" % space)
+ code_lines.append("%s xcb_tmp += xcb_tmp_len;" % space)
+ code_lines.append("%s }" % space)
+
+ elif 'serialize' == context:
+ code_lines.append('%s xcb_parts[xcb_parts_idx].iov_len = 0;' % space)
+ code_lines.append('%s xcb_tmp = (char *) %s%s;' % (space, prefix_str, field.c_field_name))
+ code_lines.append('%s for(i=0; i<%s; i++) { ' % (space, list_length))
+ code_lines.append('%s xcb_block_len = %s(xcb_tmp);' % (space, field.type.c_sizeof_name))
+ code_lines.append('%s xcb_parts[xcb_parts_idx].iov_len += xcb_block_len;' % space)
+ code_lines.append('%s }' % space)
+ code_lines.append('%s xcb_block_len = xcb_parts[xcb_parts_idx].iov_len;' % space)
+
+ return length
+# _c_serialize_helper_list_field()
+
+def _c_serialize_helper_fields_fixed_size(context, self, field,
+ code_lines, temp_vars,
+ space, prefix):
+ # keep the C code a bit more readable by giving the field name
+ if not self.is_bitcase:
+ code_lines.append('%s /* %s.%s */' % (space, self.c_type, field.c_field_name))
+ else:
+ scoped_name = [p[2].c_type if idx==0 else p[0] for idx, p in enumerate(prefix)]
+ typename = reduce(lambda x,y: "%s.%s" % (x, y), scoped_name)
+ code_lines.append('%s /* %s.%s */' % (space, typename, field.c_field_name))
+
+ abs_field_name = _c_helper_absolute_name(prefix, field)
+ # default for simple cases: call sizeof()
+ length = "sizeof(%s)" % field.c_field_type
+
+ if context in ('unserialize', 'unpack', 'sizeof'):
+ # default: simple cast
+ value = ' %s = *(%s *)xcb_tmp;' % (abs_field_name, field.c_field_type)
+
+ # padding - we could probably just ignore it
+ if field.type.is_pad and field.type.nmemb > 1:
+ value = ''
+ for i in range(field.type.nmemb):
+ code_lines.append('%s %s[%d] = *(%s *)xcb_tmp;' %
+ (space, abs_field_name, i, field.c_field_type))
+ # total padding = sizeof(pad0) * nmemb
+ length += " * %d" % field.type.nmemb
+
+ if field.type.is_list:
+ # no such case in the protocol, cannot be tested and therefore ignored for now
+ raise Exception('list with fixed number of elemens unhandled in _unserialize()')
+
+ elif 'serialize' == context:
+ value = ' xcb_parts[xcb_parts_idx].iov_base = (char *) '
+
+ if field.type.is_expr:
+ # need to register a temporary variable for the expression in case we know its type
+ if field.type.c_type is None:
+ raise Exception("type for field '%s' (expression '%s') unkown" %
+ (field.field_name, _c_accessor_get_expr(field.type.expr)))
+
+ temp_vars.append(' %s xcb_expr_%s = %s;' % (field.type.c_type, _cpp(field.field_name),
+ _c_accessor_get_expr(field.type.expr, prefix)))
+ value += "&xcb_expr_%s;" % _cpp(field.field_name)
+
+ elif field.type.is_pad:
+ if field.type.nmemb == 1:
+ value += "&xcb_pad;"
+ else:
+ # we could also set it to 0, see definition of xcb_send_request()
+ value = ' xcb_parts[xcb_parts_idx].iov_base = xcb_pad0;'
+ length += "*%d" % field.type.nmemb
+
+ else:
+ # non-list type with fixed size
+ if field.type.nmemb == 1:
+ value += "&%s;" % (abs_field_name)
+
+ # list with nmemb (fixed size) elements
+ else:
+ value += '%s;' % (abs_field_name)
+ length = '%d' % field.type.nmemb
+
+ return (value, length)
+# _c_serialize_helper_fields_fixed_size()
+
+def _c_serialize_helper_fields_variable_size(context, self, field,
+ code_lines, temp_vars,
+ space, prefix):
+ prefix_str = _c_helper_absolute_name(prefix)
+
+ if context in ('unserialize', 'unpack', 'sizeof'):
+ value = ''
+ var_field_name = 'xcb_tmp'
+
+ # special case: intermixed fixed and variable size fields
+ if self.var_followed_by_fixed_fields and 'unserialize' == context:
+ value = ' %s = (%s *)xcb_tmp;' % (field.c_field_name, field.c_field_type)
+ temp_vars.append(' %s *%s;' % (field.type.c_type, field.c_field_name))
+ # special case: switch
+ if 'unpack' == context:
+ value = ' %s%s = (%s *)xcb_tmp;' % (prefix_str, field.c_field_name, field.c_field_type)
+
+ elif 'serialize' == context:
+ # variable size fields appear as parameters to _serialize() if the
+ # 'toplevel' container is not a switch
+ prefix_string = prefix_str if prefix[0][2].is_switch else ''
+ var_field_name = "%s%s" % (prefix_string, field.c_field_name)
+ value = ' xcb_parts[xcb_parts_idx].iov_base = (char *) %s;' % var_field_name
+
+ length = ''
+
+ code_lines.append('%s /* %s */' % (space, field.c_field_name))
+
+ if field.type.is_list:
+ if value != '':
+ # in any context, list is already a pointer, so the default assignment is ok
+ code_lines.append("%s%s" % (space, value))
+ value = ''
+ length = _c_serialize_helper_list_field(context, self, field,
+ code_lines, temp_vars,
+ space, prefix)
+
+ elif field.type.is_switch:
+ value = ''
+ if context == 'serialize':
+ # the _serialize() function allocates the correct amount memory if given a NULL pointer
+ value = ' xcb_parts[xcb_parts_idx].iov_base = (char *)0;'
+ length = _c_serialize_helper_switch_field(context, self, field,
+ 'xcb_parts[xcb_parts_idx].iov_base',
+ prefix)
+
+ else:
+ # in all remaining special cases - call _sizeof()
+ length = "%s(%s)" % (field.type.c_sizeof_name, var_field_name)
+
+ return (value, length)
+# _c_serialize_helper_fields_variable_size
+
+def _c_serialize_helper_fields(context, self,
+ code_lines, temp_vars,
+ space, prefix, is_bitcase):
+ count = 0
+ need_padding = False
+ prev_field_was_variable = False
+
+ for field in self.fields:
+ if not field.visible:
+ if not ((field.wire and not field.auto) or 'unserialize' == context):
+ continue
+
+ # switch/bitcase: fixed size fields must be considered explicitly
+ if field.type.fixed_size():
+ if self.is_bitcase or self.var_followed_by_fixed_fields:
+ if prev_field_was_variable and need_padding:
+ # insert padding
+# count += _c_serialize_helper_insert_padding(context, code_lines, space,
+# self.var_followed_by_fixed_fields)
+ prev_field_was_variable = False
+
+ # prefix for fixed size fields
+ fixed_prefix = prefix
+
+ value, length = _c_serialize_helper_fields_fixed_size(context, self, field,
+ code_lines, temp_vars,
+ space, fixed_prefix)
+ else:
+ continue
+
+ # fields with variable size
+ else:
+ # switch/bitcase: always calculate padding before and after variable sized fields
+ if need_padding or is_bitcase:
+ count += _c_serialize_helper_insert_padding(context, code_lines, space,
+ self.var_followed_by_fixed_fields)
+
+ value, length = _c_serialize_helper_fields_variable_size(context, self, field,
+ code_lines, temp_vars,
+ space, prefix)
+ prev_field_was_variable = True
+
+ # save (un)serialization C code
+ if '' != value:
+ code_lines.append('%s%s' % (space, value))
+
+ if field.type.fixed_size():
+ if is_bitcase or self.var_followed_by_fixed_fields:
+ # keep track of (un)serialized object's size
+ code_lines.append('%s xcb_block_len += %s;' % (space, length))
+ if context in ('unserialize', 'unpack', 'sizeof'):
+ code_lines.append('%s xcb_tmp += %s;' % (space, length))
+ else:
+ # variable size objects or bitcase:
+ # value & length might have been inserted earlier for special cases
+ if '' != length:
+ # special case: intermixed fixed and variable size fields
+ if (not field.type.fixed_size() and
+ self.var_followed_by_fixed_fields and 'unserialize' == context):
+ temp_vars.append(' int %s_len;' % field.c_field_name)
+ code_lines.append('%s %s_len = %s;' % (space, field.c_field_name, length))
+ code_lines.append('%s xcb_block_len += %s_len;' % (space, field.c_field_name))
+ code_lines.append('%s xcb_tmp += %s_len;' % (space, field.c_field_name))
+ else:
+ code_lines.append('%s xcb_block_len += %s;' % (space, length))
+ # increase pointer into the byte stream accordingly
+ if context in ('unserialize', 'sizeof', 'unpack'):
+ code_lines.append('%s xcb_tmp += xcb_block_len;' % space)
+
+ if 'serialize' == context:
+ if '' != length:
+ code_lines.append('%s xcb_parts[xcb_parts_idx].iov_len = %s;' % (space, length))
+ code_lines.append('%s xcb_parts_idx++;' % space)
+ count += 1
+
+ code_lines.append('%s xcb_align_to = ALIGNOF(%s);' % (space, 'char' if field.c_field_type == 'void' else field.c_field_type))
+
+ need_padding = True
+ if self.var_followed_by_fixed_fields:
+ need_padding = False
+
+ return count
+# _c_serialize_helper_fields()
+
+def _c_serialize_helper(context, complex_type,
+ code_lines, temp_vars,
+ space='', prefix=[]):
+ # count tracks the number of fields to serialize
+ count = 0
+
+ if hasattr(complex_type, 'type'):
+ self = complex_type.type
+ complex_name = complex_type.name
+ else:
+ self = complex_type
+ if self.var_followed_by_fixed_fields and 'unserialize' == context:
+ complex_name = 'xcb_out'
+ else:
+ complex_name = '_aux'
+
+ # special case: switch is serialized by evaluating each bitcase separately
+ if self.is_switch:
+ count += _c_serialize_helper_switch(context, self, complex_name,
+ code_lines, temp_vars,
+ space, prefix)
+
+ # all other data types can be evaluated one field a time
+ else:
+ # unserialize & fixed size fields: simply cast the buffer to the respective xcb_out type
+ if context in ('unserialize', 'unpack', 'sizeof') and not self.var_followed_by_fixed_fields:
+ code_lines.append('%s xcb_block_len += sizeof(%s);' % (space, self.c_type))
+ code_lines.append('%s xcb_tmp += xcb_block_len;' % space)
+ # probably not needed
+ #_c_serialize_helper_insert_padding(context, code_lines, space, False)
+
+ count += _c_serialize_helper_fields(context, self,
+ code_lines, temp_vars,
+ space, prefix, False)
+ # "final padding"
+ count += _c_serialize_helper_insert_padding(context, code_lines, space, False)
+
+ return count
+# _c_serialize_helper()
+
+def _c_serialize(context, self):
+ """
+ depending on the context variable, generate _serialize(), _unserialize(), _unpack(), or _sizeof()
+ for the ComplexType variable self
+ """
+ _h_setlevel(1)
+ _c_setlevel(1)
+
+ _hc('')
+ # _serialize() returns the buffer size
+ _hc('int')
+
+ if self.is_switch and 'unserialize' == context:
+ context = 'unpack'
+
+ cases = { 'serialize' : self.c_serialize_name,
+ 'unserialize' : self.c_unserialize_name,
+ 'unpack' : self.c_unpack_name,
+ 'sizeof' : self.c_sizeof_name }
+ func_name = cases[context]
+
+ param_fields, wire_fields, params = get_serialize_params(context, self)
+ variable_size_fields = 0
+ # maximum space required for type definition of function arguments
+ maxtypelen = 0
+
+ # determine N(variable_fields)
+ for field in param_fields:
+ # if self.is_switch, treat all fields as if they are variable sized
+ if not field.type.fixed_size() or self.is_switch:
+ variable_size_fields += 1
+ # determine maxtypelen
+ for p in params:
+ maxtypelen = max(maxtypelen, len(p[0]) + len(p[1]))
+
+ # write to .c/.h
+ indent = ' '*(len(func_name)+2)
+ param_str = []
+ for p in params:
+ typespec, pointerspec, field_name = p
+ spacing = ' '*(maxtypelen-len(typespec)-len(pointerspec))
+ param_str.append("%s%s%s %s%s /**< */" % (indent, typespec, spacing, pointerspec, field_name))
+ # insert function name
+ param_str[0] = "%s (%s" % (func_name, param_str[0].strip())
+ param_str = list(map(lambda x: "%s," % x, param_str))
+ for s in param_str[:-1]:
+ _hc(s)
+ _h("%s);" % param_str[-1].rstrip(','))
+ _c("%s)" % param_str[-1].rstrip(','))
+ _c('{')
+
+ code_lines = []
+ temp_vars = []
+ prefix = []
+
+ if 'serialize' == context:
+ if not self.is_switch and not self.var_followed_by_fixed_fields:
+ _c(' %s *xcb_out = *_buffer;', self.c_type)
+ _c(' unsigned int xcb_out_pad = -sizeof(%s) & 3;', self.c_type)
+ _c(' unsigned int xcb_buffer_len = sizeof(%s) + xcb_out_pad;', self.c_type)
+ _c(' unsigned int xcb_align_to;')
+ else:
+ _c(' char *xcb_out = *_buffer;')
+ _c(' unsigned int xcb_buffer_len = 0;')
+ _c(' unsigned int xcb_align_to;')
+ prefix = [('_aux', '->', self)]
+ aux_ptr = 'xcb_out'
+
+ elif context in ('unserialize', 'unpack'):
+ _c(' char *xcb_tmp = (char *)_buffer;')
+ if not self.is_switch:
+ if not self.var_followed_by_fixed_fields:
+ _c(' const %s *_aux = (%s *)_buffer;', self.c_type, self.c_type)
+ prefix = [('_aux', '->', self)]
+ else:
+ _c(' %s xcb_out;', self.c_type)
+ prefix = [('xcb_out', '.', self)]
+ else:
+ aux_var = '_aux' # default for unpack: single pointer
+ # note: unserialize not generated for switch
+ if 'unserialize' == context:
+ aux_var = '(*_aux)' # unserialize: double pointer (!)
+ prefix = [(aux_var, '->', self)]
+ aux_ptr = '*_aux'
+ _c(' unsigned int xcb_buffer_len = 0;')
+ _c(' unsigned int xcb_block_len = 0;')
+ _c(' unsigned int xcb_pad = 0;')
+ _c(' unsigned int xcb_align_to;')
+
+ elif 'sizeof' == context:
+ param_names = [p[2] for p in params]
+ if self.is_switch:
+ # switch: call _unpack()
+ _c(' %s _aux;', self.c_type)
+ _c(' return %s(%s, &_aux);', self.c_unpack_name, reduce(lambda x,y: "%s, %s" % (x, y), param_names))
+ _c('}')
+ return
+ elif self.var_followed_by_fixed_fields:
+ # special case: call _unserialize()
+ _c(' return %s(%s, NULL);', self.c_unserialize_name, reduce(lambda x,y: "%s, %s" % (x, y), param_names))
+ _c('}')
+ return
+ else:
+ _c(' char *xcb_tmp = (char *)_buffer;')
+ prefix = [('_aux', '->', self)]
+
+ count = _c_serialize_helper(context, self, code_lines, temp_vars, prefix=prefix)
+ # update variable size fields (only important for context=='serialize'
+ variable_size_fields = count
+ if 'serialize' == context:
+ temp_vars.append(' unsigned int xcb_pad = 0;')
+ temp_vars.append(' char xcb_pad0[3] = {0, 0, 0};')
+ temp_vars.append(' struct iovec xcb_parts[%d];' % count)
+ temp_vars.append(' unsigned int xcb_parts_idx = 0;')
+ temp_vars.append(' unsigned int xcb_block_len = 0;')
+ temp_vars.append(' unsigned int i;')
+ temp_vars.append(' char *xcb_tmp;')
+ elif 'sizeof' == context:
+ # neither switch nor intermixed fixed and variable size fields:
+ # evaluate parameters directly
+ if not (self.is_switch or self.var_followed_by_fixed_fields):
+
+ # look if we have to declare an '_aux' variable at all
+ if len(list(filter(lambda x: x.find('_aux')!=-1, code_lines)))>0:
+ if not self.var_followed_by_fixed_fields:
+ _c(' const %s *_aux = (%s *)_buffer;', self.c_type, self.c_type)
+ else:
+ _c(' %s *_aux = malloc(sizeof(%s));', self.c_type, self.c_type)
+
+ _c(' unsigned int xcb_buffer_len = 0;')
+ _c(' unsigned int xcb_block_len = 0;')
+ _c(' unsigned int xcb_pad = 0;')
+ _c(' unsigned int xcb_align_to;')
+
+ _c('')
+ for t in temp_vars:
+ _c(t)
+ _c('')
+ for l in code_lines:
+ _c(l)
+
+ # variable sized fields have been collected, now
+ # allocate memory and copy everything into a continuous memory area
+ # note: this is not necessary in case of unpack
+ if context in ('serialize', 'unserialize'):
+ # unserialize: check for sizeof-only invocation
+ if 'unserialize' == context:
+ _c('')
+ _c(' if (NULL == _aux)')
+ _c(' return xcb_buffer_len;')
+
+ _c('')
+ _c(' if (NULL == %s) {', aux_ptr)
+ _c(' /* allocate memory */')
+ _c(' %s = malloc(xcb_buffer_len);', aux_ptr)
+ if 'serialize' == context:
+ _c(' *_buffer = xcb_out;')
+ _c(' }')
+ _c('')
+
+ # serialize: handle variable size fields in a loop
+ if 'serialize' == context:
+ if not self.is_switch and not self.var_followed_by_fixed_fields:
+ if len(wire_fields)>0:
+ _c(' *xcb_out = *_aux;')
+ # copy variable size fields into the buffer
+ if variable_size_fields > 0:
+ # xcb_out padding
+ if not self.is_switch and not self.var_followed_by_fixed_fields:
+ _c(' xcb_tmp = (char*)++xcb_out;')
+ _c(' xcb_tmp += xcb_out_pad;')
+ else:
+ _c(' xcb_tmp = xcb_out;')
+
+ # variable sized fields
+ _c(' for(i=0; i<xcb_parts_idx; i++) {')
+ _c(' if (0 != xcb_parts[i].iov_base && 0 != xcb_parts[i].iov_len)')
+ _c(' memcpy(xcb_tmp, xcb_parts[i].iov_base, xcb_parts[i].iov_len);')
+ _c(' if (0 != xcb_parts[i].iov_len)')
+ _c(' xcb_tmp += xcb_parts[i].iov_len;')
+ _c(' }')
+
+ # unserialize: assign variable size fields individually
+ if 'unserialize' == context:
+ _c(' xcb_tmp = ((char *)*_aux)+xcb_buffer_len;')
+ param_fields.reverse()
+ for field in param_fields:
+ if not field.type.fixed_size():
+ _c(' xcb_tmp -= %s_len;', field.c_field_name)
+ _c(' memmove(xcb_tmp, %s, %s_len);', field.c_field_name, field.c_field_name)
+ _c(' *%s = xcb_out;', aux_ptr)
+
+ _c('')
+ _c(' return xcb_buffer_len;')
+ _c('}')
+# _c_serialize()
+
+def _c_iterator_get_end(field, accum):
+ '''
+ Figures out what C code is needed to find the end of a variable-length structure field.
+ For nested structures, recurses into its last variable-sized field.
+ For lists, calls the end function
+ '''
+ if field.type.is_container:
+ accum = field.c_accessor_name + '(' + accum + ')'
+ return _c_iterator_get_end(field.type.last_varsized_field, accum)
+ if field.type.is_list:
+ # XXX we can always use the first way
+ if field.type.member.is_simple:
+ return field.c_end_name + '(' + accum + ')'
+ else:
+ return field.type.member.c_end_name + '(' + field.c_iterator_name + '(' + accum + '))'
+
+def _c_iterator(self, name):
+ '''
+ Declares the iterator structure and next/end functions for a given type.
+ '''
+ _h_setlevel(0)
+ _h('')
+ _h('/**')
+ _h(' * @brief %s', self.c_iterator_type)
+ _h(' **/')
+ _h('typedef struct %s {', self.c_iterator_type)
+ _h(' %s *data; /**< */', self.c_type)
+ _h(' int%s rem; /**< */', ' ' * (len(self.c_type) - 2))
+ _h(' int%s index; /**< */', ' ' * (len(self.c_type) - 2))
+ _h('} %s;', self.c_iterator_type)
+
+ _h_setlevel(1)
+ _c_setlevel(1)
+ _h('')
+ _h('/**')
+ _h(' * Get the next element of the iterator')
+ _h(' * @param i Pointer to a %s', self.c_iterator_type)
+ _h(' *')
+ _h(' * Get the next element in the iterator. The member rem is')
+ _h(' * decreased by one. The member data points to the next')
+ _h(' * element. The member index is increased by sizeof(%s)', self.c_type)
+ _h(' */')
+ _c('')
+ _hc('')
+ _hc('/*****************************************************************************')
+ _hc(' **')
+ _hc(' ** void %s', self.c_next_name)
+ _hc(' ** ')
+ _hc(' ** @param %s *i', self.c_iterator_type)
+ _hc(' ** @returns void')
+ _hc(' **')
+ _hc(' *****************************************************************************/')
+ _hc(' ')
+ _hc('void')
+ _h('%s (%s *i /**< */);', self.c_next_name, self.c_iterator_type)
+ _c('%s (%s *i /**< */)', self.c_next_name, self.c_iterator_type)
+ _c('{')
+
+ if not self.fixed_size():
+ _c(' %s *R = i->data;', self.c_type)
+
+ if self.is_union:
+ # FIXME - how to determine the size of a variable size union??
+ _c(' /* FIXME - determine the size of the union %s */', self.c_type)
+ else:
+ if self.need_sizeof:
+ _c(' xcb_generic_iterator_t child;')
+ _c(' child.data = (%s *)(((char *)R) + %s(R));',
+ self.c_type, self.c_sizeof_name)
+ _c(' i->index = (char *) child.data - (char *) i->data;')
+ else:
+ _c(' xcb_generic_iterator_t child = %s;', _c_iterator_get_end(self.last_varsized_field, 'R'))
+ _c(' i->index = child.index;')
+ _c(' --i->rem;')
+ _c(' i->data = (%s *) child.data;', self.c_type)
+
+ else:
+ _c(' --i->rem;')
+ _c(' ++i->data;')
+ _c(' i->index += sizeof(%s);', self.c_type)
+
+ _c('}')
+
+ _h('')
+ _h('/**')
+ _h(' * Return the iterator pointing to the last element')
+ _h(' * @param i An %s', self.c_iterator_type)
+ _h(' * @return The iterator pointing to the last element')
+ _h(' *')
+ _h(' * Set the current element in the iterator to the last element.')
+ _h(' * The member rem is set to 0. The member data points to the')
+ _h(' * last element.')
+ _h(' */')
+ _c('')
+ _hc('')
+ _hc('/*****************************************************************************')
+ _hc(' **')
+ _hc(' ** xcb_generic_iterator_t %s', self.c_end_name)
+ _hc(' ** ')
+ _hc(' ** @param %s i', self.c_iterator_type)
+ _hc(' ** @returns xcb_generic_iterator_t')
+ _hc(' **')
+ _hc(' *****************************************************************************/')
+ _hc(' ')
+ _hc('xcb_generic_iterator_t')
+ _h('%s (%s i /**< */);', self.c_end_name, self.c_iterator_type)
+ _c('%s (%s i /**< */)', self.c_end_name, self.c_iterator_type)
+ _c('{')
+ _c(' xcb_generic_iterator_t ret;')
+
+ if self.fixed_size():
+ _c(' ret.data = i.data + i.rem;')
+ _c(' ret.index = i.index + ((char *) ret.data - (char *) i.data);')
+ _c(' ret.rem = 0;')
+ else:
+ _c(' while(i.rem > 0)')
+ _c(' %s(&i);', self.c_next_name)
+ _c(' ret.data = i.data;')
+ _c(' ret.rem = i.rem;')
+ _c(' ret.index = i.index;')
+
+ _c(' return ret;')
+ _c('}')
+
+def _c_accessor_get_length(expr, field_mapping=None):
+ '''
+ Figures out what C code is needed to get a length field.
+ The field_mapping parameter can be used to change the absolute name of a length field.
+ For fields that follow a variable-length field, use the accessor.
+ Otherwise, just reference the structure field directly.
+ '''
+
+ lenfield_name = expr.lenfield_name
+ if lenfield_name is not None:
+ if field_mapping is not None:
+ lenfield_name = field_mapping[lenfield_name][0]
+
+ if expr.lenfield is not None and expr.lenfield.prev_varsized_field is not None:
+ # special case: variable and fixed size fields are intermixed
+ # if the lenfield is among the fixed size fields, there is no need
+ # to call a special accessor function like <expr.lenfield.c_accessor_name + '(' + prefix + ')'>
+ return field_mapping(expr.lenfield_name)
+ elif expr.lenfield_name is not None:
+ return lenfield_name
+ else:
+ return str(expr.nmemb)
+
+def _c_accessor_get_expr(expr, field_mapping):
+ '''
+ Figures out what C code is needed to get the length of a list field.
+ The field_mapping parameter can be used to change the absolute name of a length field.
+ Recurses for math operations.
+ Returns bitcount for value-mask fields.
+ Otherwise, uses the value of the length field.
+ '''
+ lenexp = _c_accessor_get_length(expr, field_mapping)
+
+ if expr.op == '~':
+ return '(' + '~' + _c_accessor_get_expr(expr.rhs, field_mapping) + ')'
+ elif expr.op == 'popcount':
+ return 'xcb_popcount(' + _c_accessor_get_expr(expr.rhs, field_mapping) + ')'
+ elif expr.op == 'enumref':
+ enum_name = expr.lenfield_type.name
+ constant_name = expr.lenfield_name
+ c_name = _n(enum_name + (constant_name,)).upper()
+ return c_name
+ elif expr.op == 'sumof':
+ # locate the referenced list object
+ list_obj = expr.lenfield_type
+ field = None
+ for f in expr.lenfield_parent.fields:
+ if f.field_name == expr.lenfield_name:
+ field = f
+ break
+
+ if field is None:
+ raise Exception("list field '%s' referenced by sumof not found" % expr.lenfield_name)
+ list_name = field_mapping[field.c_field_name][0]
+ c_length_func = "%s(%s)" % (field.c_length_name, list_name)
+ # note: xcb_sumof() has only been defined for integers
+ c_length_func = _c_accessor_get_expr(field.type.expr, field_mapping)
+ return 'xcb_sumof(%s, %s)' % (list_name, c_length_func)
+ elif expr.op != None:
+ return ('(' + _c_accessor_get_expr(expr.lhs, field_mapping) +
+ ' ' + expr.op + ' ' +
+ _c_accessor_get_expr(expr.rhs, field_mapping) + ')')
+ elif expr.bitfield:
+ return 'xcb_popcount(' + lenexp + ')'
+ else:
+ return lenexp
+
+def type_pad_type(type):
+ if type == 'void':
+ return 'char'
+ return type
+
+def _c_accessors_field(self, field):
+ '''
+ Declares the accessor functions for a non-list field that follows a variable-length field.
+ '''
+ c_type = self.c_type
+
+ # special case: switch
+ switch_obj = self if self.is_switch else None
+ if self.is_bitcase:
+ switch_obj = self.parents[-1]
+ if switch_obj is not None:
+ c_type = switch_obj.c_type
+
+ if field.type.is_simple:
+ _hc('')
+ _hc('')
+ _hc('/*****************************************************************************')
+ _hc(' ** ')
+ _hc(' ** %s %s', field.c_field_type, field.c_accessor_name)
+ _hc(' ** ')
+ _hc(' ** @param const %s *R', c_type)
+ _hc(' ** @returns %s', field.c_field_type)
+ _hc(' **')
+ _hc(' *****************************************************************************/')
+ _hc(' ')
+ _hc('%s', field.c_field_type)
+ _h('%s (const %s *R /**< */);', field.c_accessor_name, c_type)
+ _c('%s (const %s *R /**< */)', field.c_accessor_name, c_type)
+ _c('{')
+ if field.prev_varsized_field is None:
+ _c(' return (%s *) (R + 1);', field.c_field_type)
+ else:
+ _c(' xcb_generic_iterator_t prev = %s;', _c_iterator_get_end(field.prev_varsized_field, 'R'))
+ _c(' return * (%s *) ((char *) prev.data + XCB_TYPE_PAD(%s, prev.index) + %d);',
+ field.c_field_type, type_pad_type(field.first_field_after_varsized.type.c_type), field.prev_varsized_offset)
+ _c('}')
+ else:
+ _hc('')
+ _hc('')
+ _hc('/*****************************************************************************')
+ _hc(' **')
+ _hc(' ** %s * %s', field.c_field_type, field.c_accessor_name)
+ _hc(' ** ')
+ _hc(' ** @param const %s *R', c_type)
+ _hc(' ** @returns %s *', field.c_field_type)
+ _hc(' **')
+ _hc(' *****************************************************************************/')
+ _hc(' ')
+ if field.type.is_switch and switch_obj is None:
+ return_type = 'void *'
+ else:
+ return_type = '%s *' % field.c_field_type
+
+ _hc(return_type)
+ _h('%s (const %s *R /**< */);', field.c_accessor_name, c_type)
+ _c('%s (const %s *R /**< */)', field.c_accessor_name, c_type)
+ _c('{')
+ if field.prev_varsized_field is None:
+ _c(' return (%s) (R + 1);', return_type)
+ # note: the special case 'variable fields followed by fixed size fields'
+ # is not of any consequence here, since the ordering gets
+ # 'corrected' in the reply function
+ else:
+ _c(' xcb_generic_iterator_t prev = %s;', _c_iterator_get_end(field.prev_varsized_field, 'R'))
+ _c(' return (%s) ((char *) prev.data + XCB_TYPE_PAD(%s, prev.index) + %d);',
+ return_type, type_pad_type(field.first_field_after_varsized.type.c_type), field.prev_varsized_offset)
+ _c('}')
+
+
+def _c_accessors_list(self, field):
+ '''
+ Declares the accessor functions for a list field.
+ Declares a direct-accessor function only if the list members are fixed size.
+ Declares length and get-iterator functions always.
+ '''
+ list = field.type
+ c_type = self.c_type
+
+ # special case: switch
+ # in case of switch, 2 params have to be supplied to certain accessor functions:
+ # 1. the anchestor object (request or reply)
+ # 2. the (anchestor) switch object
+ # the reason is that switch is either a child of a request/reply or nested in another switch,
+ # so whenever we need to access a length field, we might need to refer to some anchestor type
+ switch_obj = self if self.is_switch else None
+ if self.is_bitcase:
+ switch_obj = self.parents[-1]
+ if switch_obj is not None:
+ c_type = switch_obj.c_type
+
+ params = []
+ fields = {}
+ parents = self.parents if hasattr(self, 'parents') else [self]
+ # 'R': parents[0] is always the 'toplevel' container type
+ params.append(('const %s *R' % parents[0].c_type, parents[0]))
+ fields.update(_c_helper_field_mapping(parents[0], [('R', '->', parents[0])], flat=True))
+ # auxiliary object for 'R' parameters
+ R_obj = parents[0]
+
+ if switch_obj is not None:
+ # now look where the fields are defined that are needed to evaluate
+ # the switch expr, and store the parent objects in accessor_params and
+ # the fields in switch_fields
+
+ # 'S': name for the 'toplevel' switch
+ toplevel_switch = parents[1]
+ params.append(('const %s *S' % toplevel_switch.c_type, toplevel_switch))
+ fields.update(_c_helper_field_mapping(toplevel_switch, [('S', '->', toplevel_switch)], flat=True))
+
+ # initialize prefix for everything "below" S
+ prefix_str = '/* %s */ S' % toplevel_switch.name[-1]
+ prefix = [(prefix_str, '->', toplevel_switch)]
+
+ # look for fields in the remaining containers
+ for p in parents[2:] + [self]:
+ # the separator between parent and child is always '.' here,
+ # because of nested switch statements
+ if not p.is_bitcase or (p.is_bitcase and p.has_name):
+ prefix.append((p.name[-1], '.', p))
+ fields.update(_c_helper_field_mapping(p, prefix, flat=True))
+
+ # auxiliary object for 'S' parameter
+ S_obj = parents[1]
+
+ _h_setlevel(1)
+ _c_setlevel(1)
+ if list.member.fixed_size():
+ idx = 1 if switch_obj is not None else 0
+ _hc('')
+ _hc('')
+ _hc('/*****************************************************************************')
+ _hc(' **')
+ _hc(' ** %s * %s', field.c_field_type, field.c_accessor_name)
+ _hc(' ** ')
+ _hc(' ** @param %s', params[idx][0])
+ _hc(' ** @returns %s *', field.c_field_type)
+ _hc(' **')
+ _hc(' *****************************************************************************/')
+ _hc(' ')
+ _hc('%s *', field.c_field_type)
+
+ _h('%s (%s /**< */);', field.c_accessor_name, params[idx][0])
+ _c('%s (%s /**< */)', field.c_accessor_name, params[idx][0])
+
+ _c('{')
+ if switch_obj is not None:
+ _c(' return %s;', fields[field.c_field_name][0])
+ elif field.prev_varsized_field is None:
+ _c(' return (%s *) (R + 1);', field.c_field_type)
+ else:
+ _c(' xcb_generic_iterator_t prev = %s;', _c_iterator_get_end(field.prev_varsized_field, 'R'))
+ _c(' return (%s *) ((char *) prev.data + XCB_TYPE_PAD(%s, prev.index) + %d);',
+ field.c_field_type, type_pad_type(field.first_field_after_varsized.type.c_type), field.prev_varsized_offset)
+ _c('}')
+
+ _hc('')
+ _hc('')
+ _hc('/*****************************************************************************')
+ _hc(' **')
+ _hc(' ** int %s', field.c_length_name)
+ _hc(' ** ')
+ _hc(' ** @param const %s *R', c_type)
+ _hc(' ** @returns int')
+ _hc(' **')
+ _hc(' *****************************************************************************/')
+ _hc(' ')
+ _hc('int')
+ if switch_obj is not None:
+ _hc('%s (const %s *R /**< */,', field.c_length_name, R_obj.c_type)
+ spacing = ' '*(len(field.c_length_name)+2)
+ _h('%sconst %s *S /**< */);', spacing, S_obj.c_type)
+ _c('%sconst %s *S /**< */)', spacing, S_obj.c_type)
+ length = _c_accessor_get_expr(field.type.expr, fields)
+ else:
+ _h('%s (const %s *R /**< */);', field.c_length_name, c_type)
+ _c('%s (const %s *R /**< */)', field.c_length_name, c_type)
+ length = _c_accessor_get_expr(field.type.expr, fields)
+ _c('{')
+ _c(' return %s;', length)
+ _c('}')
+
+ if field.type.member.is_simple:
+ _hc('')
+ _hc('')
+ _hc('/*****************************************************************************')
+ _hc(' **')
+ _hc(' ** xcb_generic_iterator_t %s', field.c_end_name)
+ _hc(' ** ')
+ _hc(' ** @param const %s *R', c_type)
+ _hc(' ** @returns xcb_generic_iterator_t')
+ _hc(' **')
+ _hc(' *****************************************************************************/')
+ _hc(' ')
+ _hc('xcb_generic_iterator_t')
+ if switch_obj is not None:
+ _hc('%s (const %s *R /**< */,', field.c_end_name, R_obj.c_type)
+ spacing = ' '*(len(field.c_end_name)+2)
+ _h('%sconst %s *S /**< */);', spacing, S_obj.c_type)
+ _c('%sconst %s *S /**< */)', spacing, S_obj.c_type)
+ else:
+ _h('%s (const %s *R /**< */);', field.c_end_name, c_type)
+ _c('%s (const %s *R /**< */)', field.c_end_name, c_type)
+ _c('{')
+ _c(' xcb_generic_iterator_t i;')
+
+ param = 'R' if switch_obj is None else 'S'
+ if switch_obj is not None:
+ _c(' i.data = %s + %s;', fields[field.c_field_name][0],
+ _c_accessor_get_expr(field.type.expr, fields))
+ elif field.prev_varsized_field == None:
+ _c(' i.data = ((%s *) (R + 1)) + (%s);', field.type.c_wiretype,
+ _c_accessor_get_expr(field.type.expr, fields))
+ else:
+ _c(' xcb_generic_iterator_t child = %s;',
+ _c_iterator_get_end(field.prev_varsized_field, 'R'))
+ _c(' i.data = ((%s *) child.data) + (%s);', field.type.c_wiretype,
+ _c_accessor_get_expr(field.type.expr, fields))
+
+ _c(' i.rem = 0;')
+ _c(' i.index = (char *) i.data - (char *) %s;', param)
+ _c(' return i;')
+ _c('}')
+
+ else:
+ _hc('')
+ _hc('')
+ _hc('/*****************************************************************************')
+ _hc(' **')
+ _hc(' ** %s %s', field.c_iterator_type, field.c_iterator_name)
+ _hc(' ** ')
+ _hc(' ** @param const %s *R', c_type)
+ _hc(' ** @returns %s', field.c_iterator_type)
+ _hc(' **')
+ _hc(' *****************************************************************************/')
+ _hc(' ')
+
+ _hc('%s', field.c_iterator_type)
+ if switch_obj is not None:
+ _hc('%s (const %s *R /**< */,', field.c_iterator_name, R_obj.c_type)
+ spacing = ' '*(len(field.c_iterator_name)+2)
+ _h('%sconst %s *S /**< */);', spacing, S_obj.c_type)
+ _c('%sconst %s *S /**< */)', spacing, S_obj.c_type)
+ else:
+ _h('%s (const %s *R /**< */);', field.c_iterator_name, c_type)
+ _c('%s (const %s *R /**< */)', field.c_iterator_name, c_type)
+ _c('{')
+ _c(' %s i;', field.c_iterator_type)
+
+ if switch_obj is not None:
+ _c(' i.data = %s;', fields[field.c_field_name][0])
+ _c(' i.rem = %s;', _c_accessor_get_expr(field.type.expr, fields))
+ elif field.prev_varsized_field == None:
+ _c(' i.data = (%s *) (R + 1);', field.c_field_type)
+ else:
+ _c(' xcb_generic_iterator_t prev = %s;', _c_iterator_get_end(field.prev_varsized_field, 'R'))
+ _c(' i.data = (%s *) ((char *) prev.data + XCB_TYPE_PAD(%s, prev.index));',
+ field.c_field_type, type_pad_type(field.c_field_type))
+ if switch_obj is None:
+ _c(' i.rem = %s;', _c_accessor_get_expr(field.type.expr, fields))
+ _c(' i.index = (char *) i.data - (char *) %s;', 'R' if switch_obj is None else 'S' )
+ _c(' return i;')
+ _c('}')
+
+def _c_accessors(self, name, base):
+ '''
+ Declares the accessor functions for the fields of a structure.
+ '''
+ # no accessors for switch itself -
+ # switch always needs to be unpacked explicitly
+# if self.is_switch:
+# pass
+# else:
+ if True:
+ for field in self.fields:
+ if field.type.is_list and not field.type.fixed_size():
+ _c_accessors_list(self, field)
+ elif field.prev_varsized_field is not None or not field.type.fixed_size():
+ _c_accessors_field(self, field)
+
+def c_simple(self, name):
+ '''
+ Exported function that handles cardinal type declarations.
+ These are types which are typedef'd to one of the CARDx's, char, float, etc.
+ '''
+ _c_type_setup(self, name, ())
+
+ if (self.name != name):
+ # Typedef
+ _h_setlevel(0)
+ my_name = _t(name)
+ _h('')
+ _h('typedef %s %s;', _t(self.name), my_name)
+
+ # Iterator
+ _c_iterator(self, name)
+
+def _c_complex(self):
+ '''
+ Helper function for handling all structure types.
+ Called for all structs, requests, replies, events, errors.
+ '''
+ _h_setlevel(0)
+ _h('')
+ _h('/**')
+ _h(' * @brief %s', self.c_type)
+ _h(' **/')
+ _h('typedef %s %s {', self.c_container, self.c_type)
+
+ struct_fields = []
+ maxtypelen = 0
+
+ varfield = None
+ for field in self.fields:
+ if not field.type.fixed_size() and not self.is_switch and not self.is_union:
+ varfield = field.c_field_name
+ continue
+ if field.wire:
+ struct_fields.append(field)
+
+ for field in struct_fields:
+ length = len(field.c_field_type)
+ # account for '*' pointer_spec
+ if not field.type.fixed_size():
+ length += 1
+ maxtypelen = max(maxtypelen, length)
+
+ def _c_complex_field(self, field, space=''):
+ if (field.type.fixed_size() or
+ # in case of switch with switch children, don't make the field a pointer
+ # necessary for unserialize to work
+ (self.is_switch and field.type.is_switch)):
+ spacing = ' ' * (maxtypelen - len(field.c_field_type))
+ _h('%s %s%s %s%s; /**< */', space, field.c_field_type, spacing, field.c_field_name, field.c_subscript)
+ else:
+ spacing = ' ' * (maxtypelen - (len(field.c_field_type) + 1))
+ _h('%s %s%s *%s%s; /**< */', space, field.c_field_type, spacing, field.c_field_name, field.c_subscript)
+
+ if not self.is_switch:
+ for field in struct_fields:
+ _c_complex_field(self, field)
+ else:
+ for b in self.bitcases:
+ space = ''
+ if b.type.has_name:
+ _h(' struct _%s {', b.c_field_name)
+ space = ' '
+ for field in b.type.fields:
+ _c_complex_field(self, field, space)
+ if b.type.has_name:
+ _h(' } %s;', b.c_field_name)
+
+ _h('} %s;', self.c_type)
+
+def c_struct(self, name):
+ '''
+ Exported function that handles structure declarations.
+ '''
+ _c_type_setup(self, name, ())
+ _c_complex(self)
+ _c_accessors(self, name, name)
+ _c_iterator(self, name)
+
+def c_union(self, name):
+ '''
+ Exported function that handles union declarations.
+ '''
+ _c_type_setup(self, name, ())
+ _c_complex(self)
+ _c_iterator(self, name)
+
+def _c_request_helper(self, name, cookie_type, void, regular, aux=False):
+ '''
+ Declares a request function.
+ '''
+
+ # Four stunningly confusing possibilities here:
+ #
+ # Void Non-void
+ # ------------------------------
+ # "req" "req"
+ # 0 flag CHECKED flag Normal Mode
+ # void_cookie req_cookie
+ # ------------------------------
+ # "req_checked" "req_unchecked"
+ # CHECKED flag 0 flag Abnormal Mode
+ # void_cookie req_cookie
+ # ------------------------------
+
+
+ # Whether we are _checked or _unchecked
+ checked = void and not regular
+ unchecked = not void and not regular
+
+ # What kind of cookie we return
+ func_cookie = 'xcb_void_cookie_t' if void else self.c_cookie_type
+
+ # What flag is passed to xcb_request
+ func_flags = '0' if (void and regular) or (not void and not regular) else 'XCB_REQUEST_CHECKED'
+
+ # Global extension id variable or NULL for xproto
+ func_ext_global = '&' + _ns.c_ext_global_name if _ns.is_ext else '0'
+
+ # What our function name is
+ func_name = self.c_request_name if not aux else self.c_aux_name
+ if checked:
+ func_name = self.c_checked_name if not aux else self.c_aux_checked_name
+ if unchecked:
+ func_name = self.c_unchecked_name if not aux else self.c_aux_unchecked_name
+
+ param_fields = []
+ wire_fields = []
+ maxtypelen = len('xcb_connection_t')
+ serial_fields = []
+ # special case: list with variable size elements
+ list_with_var_size_elems = False
+
+ for field in self.fields:
+ if field.visible:
+ # The field should appear as a call parameter
+ param_fields.append(field)
+ if field.wire and not field.auto:
+ # We need to set the field up in the structure
+ wire_fields.append(field)
+ if field.type.need_serialize or field.type.need_sizeof:
+ serial_fields.append(field)
+
+ for field in param_fields:
+ c_field_const_type = field.c_field_const_type
+ if field.type.need_serialize and not aux:
+ c_field_const_type = "const void"
+ if len(c_field_const_type) > maxtypelen:
+ maxtypelen = len(c_field_const_type)
+ if field.type.is_list and not field.type.member.fixed_size():
+ list_with_var_size_elems = True
+
+ _h_setlevel(1)
+ _c_setlevel(1)
+ _h('')
+ _h('/**')
+ _h(' * Delivers a request to the X server')
+ _h(' * @param c The connection')
+ _h(' * @return A cookie')
+ _h(' *')
+ _h(' * Delivers a request to the X server.')
+ _h(' * ')
+ if checked:
+ _h(' * This form can be used only if the request will not cause')
+ _h(' * a reply to be generated. Any returned error will be')
+ _h(' * saved for handling by xcb_request_check().')
+ if unchecked:
+ _h(' * This form can be used only if the request will cause')
+ _h(' * a reply to be generated. Any returned error will be')
+ _h(' * placed in the event queue.')
+ _h(' */')
+ _c('')
+ _hc('')
+ _hc('/*****************************************************************************')
+ _hc(' **')
+ _hc(' ** %s %s', cookie_type, func_name)
+ _hc(' ** ')
+
+ spacing = ' ' * (maxtypelen - len('xcb_connection_t'))
+ _hc(' ** @param xcb_connection_t%s *c', spacing)
+
+ for field in param_fields:
+ c_field_const_type = field.c_field_const_type
+ if field.type.need_serialize and not aux:
+ c_field_const_type = "const void"
+ spacing = ' ' * (maxtypelen - len(c_field_const_type))
+ _hc(' ** @param %s%s %s%s', c_field_const_type, spacing, field.c_pointer, field.c_field_name)
+
+ _hc(' ** @returns %s', cookie_type)
+ _hc(' **')
+ _hc(' *****************************************************************************/')
+ _hc(' ')
+ _hc('%s', cookie_type)
+
+ spacing = ' ' * (maxtypelen - len('xcb_connection_t'))
+ comma = ',' if len(param_fields) else ');'
+ _h('%s (xcb_connection_t%s *c /**< */%s', func_name, spacing, comma)
+ comma = ',' if len(param_fields) else ')'
+ _c('%s (xcb_connection_t%s *c /**< */%s', func_name, spacing, comma)
+
+ func_spacing = ' ' * (len(func_name) + 2)
+ count = len(param_fields)
+ for field in param_fields:
+ count = count - 1
+ c_field_const_type = field.c_field_const_type
+ c_pointer = field.c_pointer
+ if field.type.need_serialize and not aux:
+ c_field_const_type = "const void"
+ c_pointer = '*'
+ spacing = ' ' * (maxtypelen - len(c_field_const_type))
+ comma = ',' if count else ');'
+ _h('%s%s%s %s%s /**< */%s', func_spacing, c_field_const_type,
+ spacing, c_pointer, field.c_field_name, comma)
+ comma = ',' if count else ')'
+ _c('%s%s%s %s%s /**< */%s', func_spacing, c_field_const_type,
+ spacing, c_pointer, field.c_field_name, comma)
+
+ count = 2
+ if not self.var_followed_by_fixed_fields:
+ for field in param_fields:
+ if not field.type.fixed_size():
+ count = count + 2
+ if field.type.need_serialize:
+ # _serialize() keeps track of padding automatically
+ count -= 1
+ dimension = count + 2
+
+ _c('{')
+ _c(' static const xcb_protocol_request_t xcb_req = {')
+ _c(' /* count */ %d,', count)
+ _c(' /* ext */ %s,', func_ext_global)
+ _c(' /* opcode */ %s,', self.c_request_name.upper())
+ _c(' /* isvoid */ %d', 1 if void else 0)
+ _c(' };')
+ _c(' ')
+
+ _c(' struct iovec xcb_parts[%d];', dimension)
+ _c(' %s xcb_ret;', func_cookie)
+ _c(' %s xcb_out;', self.c_type)
+ if self.var_followed_by_fixed_fields:
+ _c(' /* in the protocol description, variable size fields are followed by fixed size fields */')
+ _c(' void *xcb_aux = 0;')
+
+
+ for idx, f in enumerate(serial_fields):
+ if aux:
+ _c(' void *xcb_aux%d = 0;' % (idx))
+ if list_with_var_size_elems:
+ _c(' unsigned int i;')
+ _c(' unsigned int xcb_tmp_len;')
+ _c(' char *xcb_tmp;')
+ _c(' ')
+ # simple request call tracing
+# _c(' printf("in function %s\\n");' % func_name)
+
+ # fixed size fields
+ for field in wire_fields:
+ if field.type.fixed_size():
+ if field.type.is_expr:
+ _c(' xcb_out.%s = %s;', field.c_field_name, _c_accessor_get_expr(field.type.expr, None))
+ elif field.type.is_pad:
+ if field.type.nmemb == 1:
+ _c(' xcb_out.%s = 0;', field.c_field_name)
+ else:
+ _c(' memset(xcb_out.%s, 0, %d);', field.c_field_name, field.type.nmemb)
+ else:
+ if field.type.nmemb == 1:
+ _c(' xcb_out.%s = %s;', field.c_field_name, field.c_field_name)
+ else:
+ _c(' memcpy(xcb_out.%s, %s, %d);', field.c_field_name, field.c_field_name, field.type.nmemb)
+
+ def get_serialize_args(type_obj, c_field_name, aux_var, context='serialize'):
+ serialize_args = get_serialize_params(context, type_obj,
+ c_field_name,
+ aux_var)[2]
+ return reduce(lambda x,y: "%s, %s" % (x,y), [a[2] for a in serialize_args])
+
+ # calls in order to free dyn. all. memory
+ free_calls = []
+
+ _c(' ')
+ if not self.var_followed_by_fixed_fields:
+ _c(' xcb_parts[2].iov_base = (char *) &xcb_out;')
+ _c(' xcb_parts[2].iov_len = sizeof(xcb_out);')
+ _c(' xcb_parts[3].iov_base = 0;')
+ _c(' xcb_parts[3].iov_len = -xcb_parts[2].iov_len & 3;')
+
+ count = 4
+
+ for field in param_fields:
+ if not field.type.fixed_size():
+ _c(' /* %s %s */', field.type.c_type, field.c_field_name)
+ # default: simple cast to char *
+ if not field.type.need_serialize and not field.type.need_sizeof:
+ _c(' xcb_parts[%d].iov_base = (char *) %s;', count, field.c_field_name)
+ if field.type.is_list:
+ if field.type.member.fixed_size():
+ _c(' xcb_parts[%d].iov_len = %s * sizeof(%s);', count,
+ _c_accessor_get_expr(field.type.expr, None),
+ field.type.member.c_wiretype)
+ else:
+ list_length = _c_accessor_get_expr(field.type.expr, None)
+
+ length = ''
+ _c(" xcb_parts[%d].iov_len = 0;" % count)
+ _c(" xcb_tmp = (char *)%s;", field.c_field_name)
+ _c(" for(i=0; i<%s; i++) {" % list_length)
+ _c(" xcb_tmp_len = %s(xcb_tmp);" %
+ (field.type.c_sizeof_name))
+ _c(" xcb_parts[%d].iov_len += xcb_tmp_len;" % count)
+ _c(" xcb_tmp += xcb_tmp_len;")
+ _c(" }")
+ else:
+ # not supposed to happen
+ raise Exception("unhandled variable size field %s" % field.c_field_name)
+ else:
+ if not aux:
+ _c(' xcb_parts[%d].iov_base = (char *) %s;', count, field.c_field_name)
+ idx = serial_fields.index(field)
+ aux_var = '&xcb_aux%d' % idx
+ context = 'serialize' if aux else 'sizeof'
+ _c(' xcb_parts[%d].iov_len = ', count)
+ if aux:
+ serialize_args = get_serialize_args(field.type, aux_var, field.c_field_name, context)
+ _c(' %s (%s);', field.type.c_serialize_name, serialize_args)
+ _c(' xcb_parts[%d].iov_base = xcb_aux%d;' % (count, idx))
+ free_calls.append(' free(xcb_aux%d);' % idx)
+ else:
+ serialize_args = get_serialize_args(field.type, field.c_field_name, aux_var, context)
+ func_name = field.type.c_sizeof_name
+ _c(' %s (%s);', func_name, serialize_args)
+
+ count += 1
+ if not (field.type.need_serialize or field.type.need_sizeof):
+ # the _serialize() function keeps track of padding automatically
+ _c(' xcb_parts[%d].iov_base = 0;', count)
+ _c(' xcb_parts[%d].iov_len = -xcb_parts[%d].iov_len & 3;', count, count-1)
+ count += 1
+
+ # elif self.var_followed_by_fixed_fields:
+ else:
+ _c(' xcb_parts[2].iov_base = (char *) &xcb_out;')
+ # request header: opcodes + length
+ _c(' xcb_parts[2].iov_len = 2*sizeof(uint8_t) + sizeof(uint16_t);')
+ count += 1
+ # call _serialize()
+ buffer_var = '&xcb_aux'
+ serialize_args = get_serialize_args(self, buffer_var, '&xcb_out', 'serialize')
+ _c(' xcb_parts[%d].iov_len = %s (%s);', count, self.c_serialize_name, serialize_args)
+ _c(' xcb_parts[%d].iov_base = (char *) xcb_aux;', count)
+ free_calls.append(' free(xcb_aux);')
+ # no padding necessary - _serialize() keeps track of padding automatically
+
+ _c(' ')
+ _c(' xcb_ret.sequence = xcb_send_request(c, %s, xcb_parts + 2, &xcb_req);', func_flags)
+
+ # free dyn. all. data, if any
+ for f in free_calls:
+ _c(f)
+ _c(' return xcb_ret;')
+ _c('}')
+
+def _c_reply(self, name):
+ '''
+ Declares the function that returns the reply structure.
+ '''
+ spacing1 = ' ' * (len(self.c_cookie_type) - len('xcb_connection_t'))
+ spacing2 = ' ' * (len(self.c_cookie_type) - len('xcb_generic_error_t'))
+ spacing3 = ' ' * (len(self.c_reply_name) + 2)
+
+ # check if _unserialize() has to be called for any field
+ def look_for_special_cases(complex_obj):
+ unserialize_fields = []
+ # no unserialize call in case of switch
+ if not complex_obj.is_switch:
+ for field in complex_obj.fields:
+ # three cases: 1. field with special case
+ # 2. container that contains special case field
+ # 3. list with special case elements
+ if field.type.var_followed_by_fixed_fields:
+ unserialize_fields.append(field)
+ elif field.type.is_container:
+ unserialize_fields += look_for_special_cases(field.type)
+ elif field.type.is_list:
+ if field.type.member.var_followed_by_fixed_fields:
+ unserialize_fields.append(field)
+ if field.type.member.is_container:
+ unserialize_fields += look_for_special_cases(field.type.member)
+ return unserialize_fields
+
+ unserialize_fields = look_for_special_cases(self.reply)
+
+ _h('')
+ _h('/**')
+ _h(' * Return the reply')
+ _h(' * @param c The connection')
+ _h(' * @param cookie The cookie')
+ _h(' * @param e The xcb_generic_error_t supplied')
+ _h(' *')
+ _h(' * Returns the reply of the request asked by')
+ _h(' * ')
+ _h(' * The parameter @p e supplied to this function must be NULL if')
+ _h(' * %s(). is used.', self.c_unchecked_name)
+ _h(' * Otherwise, it stores the error if any.')
+ _h(' *')
+ _h(' * The returned value must be freed by the caller using free().')
+ _h(' */')
+ _c('')
+ _hc('')
+ _hc('/*****************************************************************************')
+ _hc(' **')
+ _hc(' ** %s * %s', self.c_reply_type, self.c_reply_name)
+ _hc(' ** ')
+ _hc(' ** @param xcb_connection_t%s *c', spacing1)
+ _hc(' ** @param %s cookie', self.c_cookie_type)
+ _hc(' ** @param xcb_generic_error_t%s **e', spacing2)
+ _hc(' ** @returns %s *', self.c_reply_type)
+ _hc(' **')
+ _hc(' *****************************************************************************/')
+ _hc(' ')
+ _hc('%s *', self.c_reply_type)
+ _hc('%s (xcb_connection_t%s *c /**< */,', self.c_reply_name, spacing1)
+ _hc('%s%s cookie /**< */,', spacing3, self.c_cookie_type)
+ _h('%sxcb_generic_error_t%s **e /**< */);', spacing3, spacing2)
+ _c('%sxcb_generic_error_t%s **e /**< */)', spacing3, spacing2)
+ _c('{')
+
+ if len(unserialize_fields)>0:
+ # certain variable size fields need to be unserialized explicitly
+ _c(' %s *reply = (%s *) xcb_wait_for_reply(c, cookie.sequence, e);',
+ self.c_reply_type, self.c_reply_type)
+ _c(' int i;')
+ for field in unserialize_fields:
+ if field.type.is_list:
+ _c(' %s %s_iter = %s(reply);', field.c_iterator_type, field.c_field_name, field.c_iterator_name)
+ _c(' int %s_len = %s(reply);', field.c_field_name, field.c_length_name)
+ _c(' %s *%s_data;', field.c_field_type, field.c_field_name)
+ else:
+ raise Exception('not implemented: call _unserialize() in reply for non-list type %s', field.c_field_type)
+ # call _unserialize(), using the reply as source and target buffer
+ _c(' /* special cases: transform parts of the reply to match XCB data structures */')
+ for field in unserialize_fields:
+ if field.type.is_list:
+ _c(' for(i=0; i<%s_len; i++) {', field.c_field_name)
+ _c(' %s_data = %s_iter.data;', field.c_field_name, field.c_field_name)
+ _c(' %s((const void *)%s_data, &%s_data);', field.type.c_unserialize_name,
+ field.c_field_name, field.c_field_name)
+ _c(' %s(&%s_iter);', field.type.c_next_name, field.c_field_name)
+ _c(' }')
+ # return the transformed reply
+ _c(' return reply;')
+
+ else:
+ _c(' return (%s *) xcb_wait_for_reply(c, cookie.sequence, e);', self.c_reply_type)
+
+ _c('}')
+
+def _c_opcode(name, opcode):
+ '''
+ Declares the opcode define for requests, events, and errors.
+ '''
+ _h_setlevel(0)
+ _h('')
+ _h('/** Opcode for %s. */', _n(name))
+ _h('#define %s %s', _n(name).upper(), opcode)
+
+def _c_cookie(self, name):
+ '''
+ Declares the cookie type for a non-void request.
+ '''
+ _h_setlevel(0)
+ _h('')
+ _h('/**')
+ _h(' * @brief %s', self.c_cookie_type)
+ _h(' **/')
+ _h('typedef struct %s {', self.c_cookie_type)
+ _h(' unsigned int sequence; /**< */')
+ _h('} %s;', self.c_cookie_type)
+
+def c_request(self, name):
+ '''
+ Exported function that handles request declarations.
+ '''
+ _c_type_setup(self, name, ('request',))
+
+ if self.reply:
+ # Cookie type declaration
+ _c_cookie(self, name)
+
+ # Opcode define
+ _c_opcode(name, self.opcode)
+
+ # Request structure declaration
+ _c_complex(self)
+
+ if self.reply:
+ _c_type_setup(self.reply, name, ('reply',))
+ # Reply structure definition
+ _c_complex(self.reply)
+ # Request prototypes
+ _c_request_helper(self, name, self.c_cookie_type, False, True)
+ _c_request_helper(self, name, self.c_cookie_type, False, False)
+ if self.need_aux:
+ _c_request_helper(self, name, self.c_cookie_type, False, True, True)
+ _c_request_helper(self, name, self.c_cookie_type, False, False, True)
+ # Reply accessors
+ _c_accessors(self.reply, name + ('reply',), name)
+ _c_reply(self, name)
+ else:
+ # Request prototypes
+ _c_request_helper(self, name, 'xcb_void_cookie_t', True, False)
+ _c_request_helper(self, name, 'xcb_void_cookie_t', True, True)
+ if self.need_aux:
+ _c_request_helper(self, name, 'xcb_void_cookie_t', True, False, True)
+ _c_request_helper(self, name, 'xcb_void_cookie_t', True, True, True)
+
+
+def c_event(self, name):
+ '''
+ Exported function that handles event declarations.
+ '''
+ _c_type_setup(self, name, ('event',))
+
+ # Opcode define
+ _c_opcode(name, self.opcodes[name])
+
+ if self.name == name:
+ # Structure definition
+ _c_complex(self)
+ else:
+ # Typedef
+ _h('')
+ _h('typedef %s %s;', _t(self.name + ('event',)), _t(name + ('event',)))
+
+def c_error(self, name):
+ '''
+ Exported function that handles error declarations.
+ '''
+ _c_type_setup(self, name, ('error',))
+
+ # Opcode define
+ _c_opcode(name, self.opcodes[name])
+
+ if self.name == name:
+ # Structure definition
+ _c_complex(self)
+ else:
+ # Typedef
+ _h('')
+ _h('typedef %s %s;', _t(self.name + ('error',)), _t(name + ('error',)))
+
+
+# Main routine starts here
+
+# Must create an "output" dictionary before any xcbgen imports.
+output = {'open' : c_open,
+ 'close' : c_close,
+ 'simple' : c_simple,
+ 'enum' : c_enum,
+ 'struct' : c_struct,
+ 'union' : c_union,
+ 'request' : c_request,
+ 'event' : c_event,
+ 'error' : c_error,
+ }
+
+# Boilerplate below this point
+
+# Check for the argument that specifies path to the xcbgen python package.
+try:
+ opts, args = getopt.getopt(sys.argv[1:], 'p:')
+except getopt.GetoptError as err:
+ print(err)
+ print('Usage: c_client.py [-p path] file.xml')
+ sys.exit(1)
+
+for (opt, arg) in opts:
+ if opt == '-p':
+ sys.path.insert(1, arg)
+
+# Import the module class
+try:
+ from xcbgen.state import Module
+except ImportError:
+ print('''
+Failed to load the xcbgen Python package!
+Make sure that xcb/proto installed it on your Python path.
+If not, you will need to create a .pth file or define $PYTHONPATH
+to extend the path.
+Refer to the README file in xcb/proto for more info.
+''')
+ raise
+
+# Parse the xml header
+module = Module(args[0], output)
+
+# Build type-registry and resolve type dependencies
+module.register()
+module.resolve()
+
+# Output the code
+module.generate()
diff --git a/libxcb/src/xcb.h b/libxcb/src/xcb.h
index cfe311ecf..3ee7965d2 100644
--- a/libxcb/src/xcb.h
+++ b/libxcb/src/xcb.h
@@ -1,507 +1,507 @@
-/*
- * Copyright (C) 2001-2006 Bart Massey, Jamey Sharp, and Josh Triplett.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- * Except as contained in this notice, the names of the authors or their
- * institutions shall not be used in advertising or otherwise to promote the
- * sale, use or other dealings in this Software without prior written
- * authorization from the authors.
- */
-
-#ifndef __XCB_H__
-#define __XCB_H__
-#include <sys/types.h>
-
-#if defined(__solaris__)
-#include <inttypes.h>
-#else
-#include <stdint.h>
-#endif
-
-#ifndef _WIN32
-#include <sys/uio.h>
-#else
-#include "xcb_windefs.h"
-#endif
-#include <pthread.h>
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * @file xcb.h
- */
-
-/**
- * @defgroup XCB_Core_API XCB Core API
- * @brief Core API of the XCB library.
- *
- * @{
- */
-
-/* Pre-defined constants */
-
-/** Current protocol version */
-#define X_PROTOCOL 11
-
-/** Current minor version */
-#define X_PROTOCOL_REVISION 0
-
-/** X_TCP_PORT + display number = server port for TCP transport */
-#define X_TCP_PORT 6000
-
-#define XCB_TYPE_PAD(T,I) (-(I) & (sizeof(T) > 4 ? 3 : sizeof(T) - 1))
-
-/* Opaque structures */
-
-/**
- * @brief XCB Connection structure.
- *
- * A structure that contain all data that XCB needs to communicate with an X server.
- */
-typedef struct xcb_connection_t xcb_connection_t; /**< Opaque structure containing all data that XCB needs to communicate with an X server. */
-
-
-/* Other types */
-
-/**
- * @brief Generic iterator.
- *
- * A generic iterator structure.
- */
-typedef struct {
- void *data; /**< Data of the current iterator */
- int rem; /**< remaining elements */
- int index; /**< index of the current iterator */
-} xcb_generic_iterator_t;
-
-/**
- * @brief Generic reply.
- *
- * A generic reply structure.
- */
-typedef struct {
- uint8_t response_type; /**< Type of the response */
- uint8_t pad0; /**< Padding */
- uint16_t sequence; /**< Sequence number */
- uint32_t length; /**< Length of the response */
-} xcb_generic_reply_t;
-
-/**
- * @brief Generic event.
- *
- * A generic event structure.
- */
-typedef struct {
- uint8_t response_type; /**< Type of the response */
- uint8_t pad0; /**< Padding */
- uint16_t sequence; /**< Sequence number */
- uint32_t pad[7]; /**< Padding */
- uint32_t full_sequence; /**< full sequence */
-} xcb_generic_event_t;
-
-/**
- * @brief GE event
- *
- * An event as sent by the XGE extension. The length field specifies the
- * number of 4-byte blocks trailing the struct.
- */
-typedef struct {
- uint8_t response_type; /**< Type of the response */
- uint8_t pad0; /**< Padding */
- uint16_t sequence; /**< Sequence number */
- uint32_t length;
- uint16_t event_type;
- uint16_t pad1;
- uint32_t pad[5]; /**< Padding */
- uint32_t full_sequence; /**< full sequence */
-} xcb_ge_event_t;
-
-/**
- * @brief Generic error.
- *
- * A generic error structure.
- */
-typedef struct {
- uint8_t response_type; /**< Type of the response */
- uint8_t error_code; /**< Error code */
- uint16_t sequence; /**< Sequence number */
- uint32_t resource_id; /** < Resource ID for requests with side effects only */
- uint16_t minor_code; /** < Minor opcode of the failed request */
- uint8_t major_code; /** < Major opcode of the failed request */
- uint8_t pad0;
- uint32_t pad[5]; /**< Padding */
- uint32_t full_sequence; /**< full sequence */
-} xcb_generic_error_t;
-
-/**
- * @brief Generic cookie.
- *
- * A generic cookie structure.
- */
-typedef struct {
- unsigned int sequence; /**< Sequence number */
-} xcb_void_cookie_t;
-
-
-/* Include the generated xproto header. */
-#include "xproto.h"
-
-
-/** XCB_NONE is the universal null resource or null atom parameter value for many core X requests */
-#define XCB_NONE 0L
-
-/** XCB_COPY_FROM_PARENT can be used for many xcb_create_window parameters */
-#define XCB_COPY_FROM_PARENT 0L
-
-/** XCB_CURRENT_TIME can be used in most requests that take an xcb_timestamp_t */
-#define XCB_CURRENT_TIME 0L
-
-/** XCB_NO_SYMBOL fills in unused entries in xcb_keysym_t tables */
-#define XCB_NO_SYMBOL 0L
-
-
-/* xcb_auth.c */
-
-/**
- * @brief Container for authorization information.
- *
- * A container for authorization information to be sent to the X server.
- */
-typedef struct xcb_auth_info_t {
- int namelen; /**< Length of the string name (as returned by strlen). */
- char *name; /**< String containing the authentication protocol name, such as "MIT-MAGIC-COOKIE-1" or "XDM-AUTHORIZATION-1". */
- int datalen; /**< Length of the data member. */
- char *data; /**< Data interpreted in a protocol-specific manner. */
-} xcb_auth_info_t;
-
-
-/* xcb_out.c */
-
-/**
- * @brief Forces any buffered output to be written to the server.
- * @param c: The connection to the X server.
- * @return > @c 0 on success, <= @c 0 otherwise.
- *
- * Forces any buffered output to be written to the server. Blocks
- * until the write is complete.
- */
-int xcb_flush(xcb_connection_t *c);
-
-/**
- * @brief Returns the maximum request length that this server accepts.
- * @param c: The connection to the X server.
- * @return The maximum request length field.
- *
- * In the absence of the BIG-REQUESTS extension, returns the
- * maximum request length field from the connection setup data, which
- * may be as much as 65535. If the server supports BIG-REQUESTS, then
- * the maximum request length field from the reply to the
- * BigRequestsEnable request will be returned instead.
- *
- * Note that this length is measured in four-byte units, making the
- * theoretical maximum lengths roughly 256kB without BIG-REQUESTS and
- * 16GB with.
- */
-uint32_t xcb_get_maximum_request_length(xcb_connection_t *c);
-
-/**
- * @brief Prefetch the maximum request length without blocking.
- * @param c: The connection to the X server.
- *
- * Without blocking, does as much work as possible toward computing
- * the maximum request length accepted by the X server.
- *
- * Invoking this function may cause a call to xcb_big_requests_enable,
- * but will not block waiting for the reply.
- * xcb_get_maximum_request_length will return the prefetched data
- * after possibly blocking while the reply is retrieved.
- *
- * Note that in order for this function to be fully non-blocking, the
- * application must previously have called
- * xcb_prefetch_extension_data(c, &xcb_big_requests_id) and the reply
- * must have already arrived.
- */
-void xcb_prefetch_maximum_request_length(xcb_connection_t *c);
-
-
-/* xcb_in.c */
-
-/**
- * @brief Returns the next event or error from the server.
- * @param c: The connection to the X server.
- * @return The next event from the server.
- *
- * Returns the next event or error from the server, or returns null in
- * the event of an I/O error. Blocks until either an event or error
- * arrive, or an I/O error occurs.
- */
-xcb_generic_event_t *xcb_wait_for_event(xcb_connection_t *c);
-
-/**
- * @brief Returns the next event or error from the server.
- * @param c: The connection to the X server.
- * error status of the operation.
- * @return The next event from the server.
- *
- * Returns the next event or error from the server, if one is
- * available, or returns @c NULL otherwise. If no event is available, that
- * might be because an I/O error like connection close occurred while
- * attempting to read the next event, in which case the connection is
- * shut down when this function returns.
- */
-xcb_generic_event_t *xcb_poll_for_event(xcb_connection_t *c);
-
-/**
- * @brief Returns the next event without reading from the connection.
- * @param c: The connection to the X server.
- * @return The next already queued event from the server.
- *
- * This is a version of xcb_poll_for_event that only examines the
- * event queue for new events. The function doesn't try to read new
- * events from the connection if no queued events are found.
- *
- * This function is useful for callers that know in advance that all
- * interesting events have already been read from the connection. For
- * example, callers might use xcb_wait_for_reply and be interested
- * only of events that preceded a specific reply.
- */
-xcb_generic_event_t *xcb_poll_for_queued_event(xcb_connection_t *c);
-
-/**
- * @brief Return the error for a request, or NULL if none can ever arrive.
- * @param c: The connection to the X server.
- * @param cookie: The request cookie.
- * @return The error for the request, or NULL if none can ever arrive.
- *
- * The xcb_void_cookie_t cookie supplied to this function must have resulted
- * from a call to xcb_[request_name]_checked(). This function will block
- * until one of two conditions happens. If an error is received, it will be
- * returned. If a reply to a subsequent request has already arrived, no error
- * can arrive for this request, so this function will return NULL.
- *
- * Note that this function will perform a sync if needed to ensure that the
- * sequence number will advance beyond that provided in cookie; this is a
- * convenience to avoid races in determining whether the sync is needed.
- */
-xcb_generic_error_t *xcb_request_check(xcb_connection_t *c, xcb_void_cookie_t cookie);
-
-/**
- * @brief Discards the reply for a request.
- * @param c: The connection to the X server.
- * @param sequence: The request sequence number from a cookie.
- *
- * Discards the reply for a request. Additionally, any error generated
- * by the request is also discarded (unless it was an _unchecked request
- * and the error has already arrived).
- *
- * This function will not block even if the reply is not yet available.
- *
- * Note that the sequence really does have to come from an xcb cookie;
- * this function is not designed to operate on socket-handoff replies.
- */
-void xcb_discard_reply(xcb_connection_t *c, unsigned int sequence);
-
-
-/* xcb_ext.c */
-
-/**
- * @typedef typedef struct xcb_extension_t xcb_extension_t
- */
-typedef struct xcb_extension_t xcb_extension_t; /**< Opaque structure used as key for xcb_get_extension_data_t. */
-
-/**
- * @brief Caches reply information from QueryExtension requests.
- * @param c: The connection.
- * @param ext: The extension data.
- * @return A pointer to the xcb_query_extension_reply_t for the extension.
- *
- * This function is the primary interface to the "extension cache",
- * which caches reply information from QueryExtension
- * requests. Invoking this function may cause a call to
- * xcb_query_extension to retrieve extension information from the
- * server, and may block until extension data is received from the
- * server.
- *
- * The result must not be freed. This storage is managed by the cache
- * itself.
- */
-const xcb_query_extension_reply_t *xcb_get_extension_data(xcb_connection_t *c, xcb_extension_t *ext);
-
-/**
- * @brief Prefetch of extension data into the extension cache
- * @param c: The connection.
- * @param ext: The extension data.
- *
- * This function allows a "prefetch" of extension data into the
- * extension cache. Invoking the function may cause a call to
- * xcb_query_extension, but will not block waiting for the
- * reply. xcb_get_extension_data will return the prefetched data after
- * possibly blocking while it is retrieved.
- */
-void xcb_prefetch_extension_data(xcb_connection_t *c, xcb_extension_t *ext);
-
-
-/* xcb_conn.c */
-
-/**
- * @brief Access the data returned by the server.
- * @param c: The connection.
- * @return A pointer to an xcb_setup_t structure.
- *
- * Accessor for the data returned by the server when the xcb_connection_t
- * was initialized. This data includes
- * - the server's required format for images,
- * - a list of available visuals,
- * - a list of available screens,
- * - the server's maximum request length (in the absence of the
- * BIG-REQUESTS extension),
- * - and other assorted information.
- *
- * See the X protocol specification for more details.
- *
- * The result must not be freed.
- */
-const xcb_setup_t *xcb_get_setup(xcb_connection_t *c);
-
-/**
- * @brief Access the file descriptor of the connection.
- * @param c: The connection.
- * @return The file descriptor.
- *
- * Accessor for the file descriptor that was passed to the
- * xcb_connect_to_fd call that returned @p c.
- */
-int xcb_get_file_descriptor(xcb_connection_t *c);
-
-/**
- * @brief Test whether the connection has shut down due to a fatal error.
- * @param c: The connection.
- * @return 1 if the connection is in an error state; 0 otherwise.
- *
- * Some errors that occur in the context of an xcb_connection_t
- * are unrecoverable. When such an error occurs, the
- * connection is shut down and further operations on the
- * xcb_connection_t have no effect.
- *
- * @todo Other functions should document the conditions in
- * which they shut down the connection.
- */
-int xcb_connection_has_error(xcb_connection_t *c);
-
-/**
- * @brief Connects to the X server.
- * @param fd: The file descriptor.
- * @param auth_info: Authentication data.
- * @return A newly allocated xcb_connection_t structure.
- *
- * Connects to an X server, given the open socket @p fd and the
- * xcb_auth_info_t @p auth_info. The file descriptor @p fd is
- * bidirectionally connected to an X server. If the connection
- * should be unauthenticated, @p auth_info must be @c
- * NULL.
- */
-xcb_connection_t *xcb_connect_to_fd(int fd, xcb_auth_info_t *auth_info);
-
-/**
- * @brief Closes the connection.
- * @param c: The connection.
- *
- * Closes the file descriptor and frees all memory associated with the
- * connection @c c.
- */
-void xcb_disconnect(xcb_connection_t *c);
-
-
-/* xcb_util.c */
-
-/**
- * @brief Parses a display string name in the form documented by X(7x).
- * @param name: The name of the display.
- * @param host: A pointer to a malloc'd copy of the hostname.
- * @param display: A pointer to the display number.
- * @param screen: A pointer to the screen number.
- * @return 0 on failure, non 0 otherwise.
- *
- * Parses the display string name @p display_name in the form
- * documented by X(7x). Has no side effects on failure. If
- * @p displayname is @c NULL or empty, it uses the environment
- * variable DISPLAY. @p hostp is a pointer to a newly allocated string
- * that contain the host name. @p displayp is set to the display
- * number and @p screenp to the preferred screen number. @p screenp
- * can be @c NULL. If @p displayname does not contain a screen number,
- * it is set to @c 0.
- */
-int xcb_parse_display(const char *name, char **host, int *display, int *screen);
-
-/**
- * @brief Connects to the X server.
- * @param displayname: The name of the display.
- * @param screenp: A pointer to a preferred screen number.
- * @return A newly allocated xcb_connection_t structure.
- *
- * Connects to the X server specified by @p displayname. If @p
- * displayname is @c NULL, uses the value of the DISPLAY environment
- * variable. If a particular screen on that server is preferred, the
- * int pointed to by @p screenp (if not @c NULL) will be set to that
- * screen; otherwise the screen will be set to 0.
- */
-xcb_connection_t *xcb_connect(const char *displayname, int *screenp);
-
-/**
- * @brief Connects to the X server, using an authorization information.
- * @param display: The name of the display.
- * @param auth: The authorization information.
- * @param screen: A pointer to a preferred screen number.
- * @return A newly allocated xcb_connection_t structure.
- *
- * Connects to the X server specified by @p displayname, using the
- * authorization @p auth. If a particular screen on that server is
- * preferred, the int pointed to by @p screenp (if not @c NULL) will
- * be set to that screen; otherwise @p screenp will be set to 0.
- */
-xcb_connection_t *xcb_connect_to_display_with_auth_info(const char *display, xcb_auth_info_t *auth, int *screen);
-
-
-/* xcb_xid.c */
-
-/**
- * @brief Allocates an XID for a new object.
- * @param c: The connection.
- * @return A newly allocated XID.
- *
- * Allocates an XID for a new object. Typically used just prior to
- * various object creation functions, such as xcb_create_window.
- */
-uint32_t xcb_generate_id(xcb_connection_t *c);
-
-
-/**
- * @}
- */
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#endif /* __XCB_H__ */
+/*
+ * Copyright (C) 2001-2006 Bart Massey, Jamey Sharp, and Josh Triplett.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the names of the authors or their
+ * institutions shall not be used in advertising or otherwise to promote the
+ * sale, use or other dealings in this Software without prior written
+ * authorization from the authors.
+ */
+
+#ifndef __XCB_H__
+#define __XCB_H__
+#include <sys/types.h>
+
+#if defined(__solaris__)
+#include <inttypes.h>
+#else
+#include <stdint.h>
+#endif
+
+#ifndef _WIN32
+#include <sys/uio.h>
+#else
+#include "xcb_windefs.h"
+#endif
+#include <pthread.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @file xcb.h
+ */
+
+/**
+ * @defgroup XCB_Core_API XCB Core API
+ * @brief Core API of the XCB library.
+ *
+ * @{
+ */
+
+/* Pre-defined constants */
+
+/** Current protocol version */
+#define X_PROTOCOL 11
+
+/** Current minor version */
+#define X_PROTOCOL_REVISION 0
+
+/** X_TCP_PORT + display number = server port for TCP transport */
+#define X_TCP_PORT 6000
+
+#define XCB_TYPE_PAD(T,I) (-(I) & (sizeof(T) > 4 ? 3 : sizeof(T) - 1))
+
+/* Opaque structures */
+
+/**
+ * @brief XCB Connection structure.
+ *
+ * A structure that contain all data that XCB needs to communicate with an X server.
+ */
+typedef struct xcb_connection_t xcb_connection_t; /**< Opaque structure containing all data that XCB needs to communicate with an X server. */
+
+
+/* Other types */
+
+/**
+ * @brief Generic iterator.
+ *
+ * A generic iterator structure.
+ */
+typedef struct {
+ void *data; /**< Data of the current iterator */
+ int rem; /**< remaining elements */
+ int index; /**< index of the current iterator */
+} xcb_generic_iterator_t;
+
+/**
+ * @brief Generic reply.
+ *
+ * A generic reply structure.
+ */
+typedef struct {
+ uint8_t response_type; /**< Type of the response */
+ uint8_t pad0; /**< Padding */
+ uint16_t sequence; /**< Sequence number */
+ uint32_t length; /**< Length of the response */
+} xcb_generic_reply_t;
+
+/**
+ * @brief Generic event.
+ *
+ * A generic event structure.
+ */
+typedef struct {
+ uint8_t response_type; /**< Type of the response */
+ uint8_t pad0; /**< Padding */
+ uint16_t sequence; /**< Sequence number */
+ uint32_t pad[7]; /**< Padding */
+ uint32_t full_sequence; /**< full sequence */
+} xcb_generic_event_t;
+
+/**
+ * @brief GE event
+ *
+ * An event as sent by the XGE extension. The length field specifies the
+ * number of 4-byte blocks trailing the struct.
+ */
+typedef struct {
+ uint8_t response_type; /**< Type of the response */
+ uint8_t pad0; /**< Padding */
+ uint16_t sequence; /**< Sequence number */
+ uint32_t length;
+ uint16_t event_type;
+ uint16_t pad1;
+ uint32_t pad[5]; /**< Padding */
+ uint32_t full_sequence; /**< full sequence */
+} xcb_ge_event_t;
+
+/**
+ * @brief Generic error.
+ *
+ * A generic error structure.
+ */
+typedef struct {
+ uint8_t response_type; /**< Type of the response */
+ uint8_t error_code; /**< Error code */
+ uint16_t sequence; /**< Sequence number */
+ uint32_t resource_id; /** < Resource ID for requests with side effects only */
+ uint16_t minor_code; /** < Minor opcode of the failed request */
+ uint8_t major_code; /** < Major opcode of the failed request */
+ uint8_t pad0;
+ uint32_t pad[5]; /**< Padding */
+ uint32_t full_sequence; /**< full sequence */
+} xcb_generic_error_t;
+
+/**
+ * @brief Generic cookie.
+ *
+ * A generic cookie structure.
+ */
+typedef struct {
+ unsigned int sequence; /**< Sequence number */
+} xcb_void_cookie_t;
+
+
+/* Include the generated xproto header. */
+#include "xproto.h"
+
+
+/** XCB_NONE is the universal null resource or null atom parameter value for many core X requests */
+#define XCB_NONE 0L
+
+/** XCB_COPY_FROM_PARENT can be used for many xcb_create_window parameters */
+#define XCB_COPY_FROM_PARENT 0L
+
+/** XCB_CURRENT_TIME can be used in most requests that take an xcb_timestamp_t */
+#define XCB_CURRENT_TIME 0L
+
+/** XCB_NO_SYMBOL fills in unused entries in xcb_keysym_t tables */
+#define XCB_NO_SYMBOL 0L
+
+
+/* xcb_auth.c */
+
+/**
+ * @brief Container for authorization information.
+ *
+ * A container for authorization information to be sent to the X server.
+ */
+typedef struct xcb_auth_info_t {
+ int namelen; /**< Length of the string name (as returned by strlen). */
+ char *name; /**< String containing the authentication protocol name, such as "MIT-MAGIC-COOKIE-1" or "XDM-AUTHORIZATION-1". */
+ int datalen; /**< Length of the data member. */
+ char *data; /**< Data interpreted in a protocol-specific manner. */
+} xcb_auth_info_t;
+
+
+/* xcb_out.c */
+
+/**
+ * @brief Forces any buffered output to be written to the server.
+ * @param c: The connection to the X server.
+ * @return > @c 0 on success, <= @c 0 otherwise.
+ *
+ * Forces any buffered output to be written to the server. Blocks
+ * until the write is complete.
+ */
+int xcb_flush(xcb_connection_t *c);
+
+/**
+ * @brief Returns the maximum request length that this server accepts.
+ * @param c: The connection to the X server.
+ * @return The maximum request length field.
+ *
+ * In the absence of the BIG-REQUESTS extension, returns the
+ * maximum request length field from the connection setup data, which
+ * may be as much as 65535. If the server supports BIG-REQUESTS, then
+ * the maximum request length field from the reply to the
+ * BigRequestsEnable request will be returned instead.
+ *
+ * Note that this length is measured in four-byte units, making the
+ * theoretical maximum lengths roughly 256kB without BIG-REQUESTS and
+ * 16GB with.
+ */
+uint32_t xcb_get_maximum_request_length(xcb_connection_t *c);
+
+/**
+ * @brief Prefetch the maximum request length without blocking.
+ * @param c: The connection to the X server.
+ *
+ * Without blocking, does as much work as possible toward computing
+ * the maximum request length accepted by the X server.
+ *
+ * Invoking this function may cause a call to xcb_big_requests_enable,
+ * but will not block waiting for the reply.
+ * xcb_get_maximum_request_length will return the prefetched data
+ * after possibly blocking while the reply is retrieved.
+ *
+ * Note that in order for this function to be fully non-blocking, the
+ * application must previously have called
+ * xcb_prefetch_extension_data(c, &xcb_big_requests_id) and the reply
+ * must have already arrived.
+ */
+void xcb_prefetch_maximum_request_length(xcb_connection_t *c);
+
+
+/* xcb_in.c */
+
+/**
+ * @brief Returns the next event or error from the server.
+ * @param c: The connection to the X server.
+ * @return The next event from the server.
+ *
+ * Returns the next event or error from the server, or returns null in
+ * the event of an I/O error. Blocks until either an event or error
+ * arrive, or an I/O error occurs.
+ */
+xcb_generic_event_t *xcb_wait_for_event(xcb_connection_t *c);
+
+/**
+ * @brief Returns the next event or error from the server.
+ * @param c: The connection to the X server.
+ * error status of the operation.
+ * @return The next event from the server.
+ *
+ * Returns the next event or error from the server, if one is
+ * available, or returns @c NULL otherwise. If no event is available, that
+ * might be because an I/O error like connection close occurred while
+ * attempting to read the next event, in which case the connection is
+ * shut down when this function returns.
+ */
+xcb_generic_event_t *xcb_poll_for_event(xcb_connection_t *c);
+
+/**
+ * @brief Returns the next event without reading from the connection.
+ * @param c: The connection to the X server.
+ * @return The next already queued event from the server.
+ *
+ * This is a version of xcb_poll_for_event that only examines the
+ * event queue for new events. The function doesn't try to read new
+ * events from the connection if no queued events are found.
+ *
+ * This function is useful for callers that know in advance that all
+ * interesting events have already been read from the connection. For
+ * example, callers might use xcb_wait_for_reply and be interested
+ * only of events that preceded a specific reply.
+ */
+xcb_generic_event_t *xcb_poll_for_queued_event(xcb_connection_t *c);
+
+/**
+ * @brief Return the error for a request, or NULL if none can ever arrive.
+ * @param c: The connection to the X server.
+ * @param cookie: The request cookie.
+ * @return The error for the request, or NULL if none can ever arrive.
+ *
+ * The xcb_void_cookie_t cookie supplied to this function must have resulted
+ * from a call to xcb_[request_name]_checked(). This function will block
+ * until one of two conditions happens. If an error is received, it will be
+ * returned. If a reply to a subsequent request has already arrived, no error
+ * can arrive for this request, so this function will return NULL.
+ *
+ * Note that this function will perform a sync if needed to ensure that the
+ * sequence number will advance beyond that provided in cookie; this is a
+ * convenience to avoid races in determining whether the sync is needed.
+ */
+xcb_generic_error_t *xcb_request_check(xcb_connection_t *c, xcb_void_cookie_t cookie);
+
+/**
+ * @brief Discards the reply for a request.
+ * @param c: The connection to the X server.
+ * @param sequence: The request sequence number from a cookie.
+ *
+ * Discards the reply for a request. Additionally, any error generated
+ * by the request is also discarded (unless it was an _unchecked request
+ * and the error has already arrived).
+ *
+ * This function will not block even if the reply is not yet available.
+ *
+ * Note that the sequence really does have to come from an xcb cookie;
+ * this function is not designed to operate on socket-handoff replies.
+ */
+void xcb_discard_reply(xcb_connection_t *c, unsigned int sequence);
+
+
+/* xcb_ext.c */
+
+/**
+ * @typedef typedef struct xcb_extension_t xcb_extension_t
+ */
+typedef struct xcb_extension_t xcb_extension_t; /**< Opaque structure used as key for xcb_get_extension_data_t. */
+
+/**
+ * @brief Caches reply information from QueryExtension requests.
+ * @param c: The connection.
+ * @param ext: The extension data.
+ * @return A pointer to the xcb_query_extension_reply_t for the extension.
+ *
+ * This function is the primary interface to the "extension cache",
+ * which caches reply information from QueryExtension
+ * requests. Invoking this function may cause a call to
+ * xcb_query_extension to retrieve extension information from the
+ * server, and may block until extension data is received from the
+ * server.
+ *
+ * The result must not be freed. This storage is managed by the cache
+ * itself.
+ */
+const xcb_query_extension_reply_t *xcb_get_extension_data(xcb_connection_t *c, xcb_extension_t *ext);
+
+/**
+ * @brief Prefetch of extension data into the extension cache
+ * @param c: The connection.
+ * @param ext: The extension data.
+ *
+ * This function allows a "prefetch" of extension data into the
+ * extension cache. Invoking the function may cause a call to
+ * xcb_query_extension, but will not block waiting for the
+ * reply. xcb_get_extension_data will return the prefetched data after
+ * possibly blocking while it is retrieved.
+ */
+void xcb_prefetch_extension_data(xcb_connection_t *c, xcb_extension_t *ext);
+
+
+/* xcb_conn.c */
+
+/**
+ * @brief Access the data returned by the server.
+ * @param c: The connection.
+ * @return A pointer to an xcb_setup_t structure.
+ *
+ * Accessor for the data returned by the server when the xcb_connection_t
+ * was initialized. This data includes
+ * - the server's required format for images,
+ * - a list of available visuals,
+ * - a list of available screens,
+ * - the server's maximum request length (in the absence of the
+ * BIG-REQUESTS extension),
+ * - and other assorted information.
+ *
+ * See the X protocol specification for more details.
+ *
+ * The result must not be freed.
+ */
+const xcb_setup_t *xcb_get_setup(xcb_connection_t *c);
+
+/**
+ * @brief Access the file descriptor of the connection.
+ * @param c: The connection.
+ * @return The file descriptor.
+ *
+ * Accessor for the file descriptor that was passed to the
+ * xcb_connect_to_fd call that returned @p c.
+ */
+int xcb_get_file_descriptor(xcb_connection_t *c);
+
+/**
+ * @brief Test whether the connection has shut down due to a fatal error.
+ * @param c: The connection.
+ * @return 1 if the connection is in an error state; 0 otherwise.
+ *
+ * Some errors that occur in the context of an xcb_connection_t
+ * are unrecoverable. When such an error occurs, the
+ * connection is shut down and further operations on the
+ * xcb_connection_t have no effect.
+ *
+ * @todo Other functions should document the conditions in
+ * which they shut down the connection.
+ */
+int xcb_connection_has_error(xcb_connection_t *c);
+
+/**
+ * @brief Connects to the X server.
+ * @param fd: The file descriptor.
+ * @param auth_info: Authentication data.
+ * @return A newly allocated xcb_connection_t structure.
+ *
+ * Connects to an X server, given the open socket @p fd and the
+ * xcb_auth_info_t @p auth_info. The file descriptor @p fd is
+ * bidirectionally connected to an X server. If the connection
+ * should be unauthenticated, @p auth_info must be @c
+ * NULL.
+ */
+xcb_connection_t *xcb_connect_to_fd(int fd, xcb_auth_info_t *auth_info);
+
+/**
+ * @brief Closes the connection.
+ * @param c: The connection.
+ *
+ * Closes the file descriptor and frees all memory associated with the
+ * connection @c c.
+ */
+void xcb_disconnect(xcb_connection_t *c);
+
+
+/* xcb_util.c */
+
+/**
+ * @brief Parses a display string name in the form documented by X(7x).
+ * @param name: The name of the display.
+ * @param host: A pointer to a malloc'd copy of the hostname.
+ * @param display: A pointer to the display number.
+ * @param screen: A pointer to the screen number.
+ * @return 0 on failure, non 0 otherwise.
+ *
+ * Parses the display string name @p display_name in the form
+ * documented by X(7x). Has no side effects on failure. If
+ * @p displayname is @c NULL or empty, it uses the environment
+ * variable DISPLAY. @p hostp is a pointer to a newly allocated string
+ * that contain the host name. @p displayp is set to the display
+ * number and @p screenp to the preferred screen number. @p screenp
+ * can be @c NULL. If @p displayname does not contain a screen number,
+ * it is set to @c 0.
+ */
+int xcb_parse_display(const char *name, char **host, int *display, int *screen);
+
+/**
+ * @brief Connects to the X server.
+ * @param displayname: The name of the display.
+ * @param screenp: A pointer to a preferred screen number.
+ * @return A newly allocated xcb_connection_t structure.
+ *
+ * Connects to the X server specified by @p displayname. If @p
+ * displayname is @c NULL, uses the value of the DISPLAY environment
+ * variable. If a particular screen on that server is preferred, the
+ * int pointed to by @p screenp (if not @c NULL) will be set to that
+ * screen; otherwise the screen will be set to 0.
+ */
+xcb_connection_t *xcb_connect(const char *displayname, int *screenp);
+
+/**
+ * @brief Connects to the X server, using an authorization information.
+ * @param display: The name of the display.
+ * @param auth: The authorization information.
+ * @param screen: A pointer to a preferred screen number.
+ * @return A newly allocated xcb_connection_t structure.
+ *
+ * Connects to the X server specified by @p displayname, using the
+ * authorization @p auth. If a particular screen on that server is
+ * preferred, the int pointed to by @p screenp (if not @c NULL) will
+ * be set to that screen; otherwise @p screenp will be set to 0.
+ */
+xcb_connection_t *xcb_connect_to_display_with_auth_info(const char *display, xcb_auth_info_t *auth, int *screen);
+
+
+/* xcb_xid.c */
+
+/**
+ * @brief Allocates an XID for a new object.
+ * @param c: The connection.
+ * @return A newly allocated XID.
+ *
+ * Allocates an XID for a new object. Typically used just prior to
+ * various object creation functions, such as xcb_create_window.
+ */
+uint32_t xcb_generate_id(xcb_connection_t *c);
+
+
+/**
+ * @}
+ */
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* __XCB_H__ */
diff --git a/libxcb/src/xcb_auth.c b/libxcb/src/xcb_auth.c
index f2a3ab610..aeb2374ed 100644
--- a/libxcb/src/xcb_auth.c
+++ b/libxcb/src/xcb_auth.c
@@ -1,373 +1,373 @@
-/* Copyright (C) 2001-2004 Bart Massey and Jamey Sharp.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- * Except as contained in this notice, the names of the authors or their
- * institutions shall not be used in advertising or otherwise to promote the
- * sale, use or other dealings in this Software without prior written
- * authorization from the authors.
- */
-
-/* Authorization systems for the X protocol. */
-
-#include <assert.h>
-#include <X11/Xauth.h>
-#include <sys/param.h>
-#include <unistd.h>
-#include <stdlib.h>
-#ifndef _MSC_VER
-#include <arpa/inet.h>
-#endif
-
-#ifdef __INTERIX
-/* _don't_ ask. interix has INADDR_LOOPBACK in here. */
-#include <rpc/types.h>
-#endif
-
-#ifdef _WIN32
-#include "xcb_windefs.h"
-#else
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <sys/un.h>
-#endif /* _WIN32 */
-
-#include "xcb.h"
-#include "xcbint.h"
-
-#ifdef HASXDMAUTH
-#include <X11/Xdmcp.h>
-#endif
-
-enum auth_protos {
-#ifdef HASXDMAUTH
- AUTH_XA1,
-#endif
- AUTH_MC1,
- N_AUTH_PROTOS
-};
-
-#define AUTH_PROTO_XDM_AUTHORIZATION "XDM-AUTHORIZATION-1"
-#define AUTH_PROTO_MIT_MAGIC_COOKIE "MIT-MAGIC-COOKIE-1"
-
-static char *authnames[N_AUTH_PROTOS] = {
-#ifdef HASXDMAUTH
- AUTH_PROTO_XDM_AUTHORIZATION,
-#endif
- AUTH_PROTO_MIT_MAGIC_COOKIE,
-};
-
-static int authnameslen[N_AUTH_PROTOS] = {
-#ifdef HASXDMAUTH
- sizeof(AUTH_PROTO_XDM_AUTHORIZATION) - 1,
-#endif
- sizeof(AUTH_PROTO_MIT_MAGIC_COOKIE) - 1,
-};
-
-static size_t memdup(char **dst, void *src, size_t len)
-{
- if(len)
- *dst = malloc(len);
- else
- *dst = 0;
- if(!*dst)
- return 0;
- memcpy(*dst, src, len);
- return len;
-}
-
-static int authname_match(enum auth_protos kind, char *name, size_t namelen)
-{
- if(authnameslen[kind] != namelen)
- return 0;
- if(memcmp(authnames[kind], name, namelen))
- return 0;
- return 1;
-}
-
-#define SIN6_ADDR(s) (&((struct sockaddr_in6 *)s)->sin6_addr)
-
-static Xauth *get_authptr(struct sockaddr *sockname, int display)
-{
- char *addr = 0;
- int addrlen = 0;
- unsigned short family;
- char hostnamebuf[256]; /* big enough for max hostname */
- char dispbuf[40]; /* big enough to hold more than 2^64 base 10 */
- int dispbuflen;
-
- family = FamilyLocal; /* 256 */
- switch(sockname->sa_family)
- {
-#ifdef AF_INET6
- case AF_INET6:
- addr = (char *) SIN6_ADDR(sockname);
- addrlen = sizeof(*SIN6_ADDR(sockname));
- if(!IN6_IS_ADDR_V4MAPPED(SIN6_ADDR(sockname)))
- {
- if(!IN6_IS_ADDR_LOOPBACK(SIN6_ADDR(sockname)))
- family = XCB_FAMILY_INTERNET_6;
- break;
- }
- addr += 12;
- /* if v4-mapped, fall through. */
-#endif
- case AF_INET:
- if(!addr)
- addr = (char *) &((struct sockaddr_in *)sockname)->sin_addr;
- addrlen = sizeof(((struct sockaddr_in *)sockname)->sin_addr);
- if(*(in_addr_t *) addr != htonl(INADDR_LOOPBACK))
- family = XCB_FAMILY_INTERNET;
- break;
- case AF_UNIX:
- break;
- default:
- return 0; /* cannot authenticate this family */
- }
-
- dispbuflen = snprintf(dispbuf, sizeof(dispbuf), "%d", display);
- if(dispbuflen < 0)
- return 0;
- /* snprintf may have truncate our text */
- dispbuflen = MIN(dispbuflen, sizeof(dispbuf) - 1);
-
- if (family == FamilyLocal) {
- if (gethostname(hostnamebuf, sizeof(hostnamebuf)) == -1)
- return 0; /* do not know own hostname */
- addr = hostnamebuf;
- addrlen = strlen(addr);
- }
-
- return XauGetBestAuthByAddr (family,
- (unsigned short) addrlen, addr,
- (unsigned short) dispbuflen, dispbuf,
- N_AUTH_PROTOS, authnames, authnameslen);
-}
-
-#ifdef HASXDMAUTH
-static int next_nonce(void)
-{
- static int nonce = 0;
- static pthread_mutex_t nonce_mutex = PTHREAD_MUTEX_INITIALIZER;
- int ret;
- pthread_mutex_lock(&nonce_mutex);
- ret = nonce++;
- pthread_mutex_unlock(&nonce_mutex);
- return ret;
-}
-
-static void do_append(char *buf, int *idxp, void *val, size_t valsize) {
- memcpy(buf + *idxp, val, valsize);
- *idxp += valsize;
-}
-#endif
-
-static int compute_auth(xcb_auth_info_t *info, Xauth *authptr, struct sockaddr *sockname)
-{
- if (authname_match(AUTH_MC1, authptr->name, authptr->name_length)) {
- info->datalen = memdup(&info->data, authptr->data, authptr->data_length);
- if(!info->datalen)
- return 0;
- return 1;
- }
-#ifdef HASXDMAUTH
-#define APPEND(buf,idx,val) do_append((buf),&(idx),&(val),sizeof(val))
- if (authname_match(AUTH_XA1, authptr->name, authptr->name_length)) {
- int j;
-
- info->data = malloc(192 / 8);
- if(!info->data)
- return 0;
-
- for (j = 0; j < 8; j++)
- info->data[j] = authptr->data[j];
- switch(sockname->sa_family) {
- case AF_INET:
- /*block*/ {
- struct sockaddr_in *si = (struct sockaddr_in *) sockname;
- APPEND(info->data, j, si->sin_addr.s_addr);
- APPEND(info->data, j, si->sin_port);
- }
- break;
-#ifdef AF_INET6
- case AF_INET6:
- /*block*/ {
- struct sockaddr_in6 *si6 = (struct sockaddr_in6 *) sockname;
- if(IN6_IS_ADDR_V4MAPPED(SIN6_ADDR(sockname)))
- {
- do_append(info->data, &j, &si6->sin6_addr.s6_addr[12], 4);
- APPEND(info->data, j, si6->sin6_port);
- }
- else
- {
- /* XDM-AUTHORIZATION-1 does not handle IPv6 correctly. Do the
- same thing Xlib does: use all zeroes for the 4-byte address
- and 2-byte port number. */
- uint32_t fakeaddr = 0;
- uint16_t fakeport = 0;
- APPEND(info->data, j, fakeaddr);
- APPEND(info->data, j, fakeport);
- }
- }
- break;
-#endif
- case AF_UNIX:
- /*block*/ {
- uint32_t fakeaddr = htonl(0xffffffff - next_nonce());
- uint16_t fakeport = htons(getpid());
- APPEND(info->data, j, fakeaddr);
- APPEND(info->data, j, fakeport);
- }
- break;
- default:
- free(info->data);
- return 0; /* do not know how to build this */
- }
- {
- uint32_t now = htonl(time(0));
- APPEND(info->data, j, now);
- }
- assert(j <= 192 / 8);
- while (j < 192 / 8)
- info->data[j++] = 0;
- info->datalen = j;
- XdmcpWrap ((unsigned char *) info->data, (unsigned char *) authptr->data + 8, (unsigned char *) info->data, info->datalen);
- return 1;
- }
-#undef APPEND
-#endif
-
- return 0; /* Unknown authorization type */
-}
-
-/* `sockaddr_un.sun_path' typical size usually ranges between 92 and 108 */
-#define INITIAL_SOCKNAME_SLACK 108
-
-#ifndef WIN32
-typedef int (*LPFN_GETPEERNAME)(int,struct sockaddr *,socklen_t *);
-#endif
-/* Return a dynamically allocated socket address structure according
- to the value returned by either getpeername() or getsockname()
- (according to POSIX, applications should not assume a particular
- length for `sockaddr_un.sun_path') */
-static struct sockaddr *get_peer_sock_name(LPFN_GETPEERNAME socket_func,
- int fd)
-{
- socklen_t socknamelen = sizeof(struct sockaddr) + INITIAL_SOCKNAME_SLACK;
- socklen_t actual_socknamelen = socknamelen;
- struct sockaddr *sockname = malloc(socknamelen);
-
- if (sockname == NULL)
- return NULL;
-
- /* Both getpeername() and getsockname() truncates sockname if
- there is not enough space and set the required length in
- actual_socknamelen */
- if (socket_func(fd, sockname, &actual_socknamelen) == -1)
- goto sock_or_realloc_error;
-
- if (actual_socknamelen > socknamelen)
- {
- struct sockaddr *new_sockname = NULL;
- socknamelen = actual_socknamelen;
-
- if ((new_sockname = realloc(sockname, actual_socknamelen)) == NULL)
- goto sock_or_realloc_error;
-
- sockname = new_sockname;
-
- if (socket_func(fd, sockname, &actual_socknamelen) == -1 ||
- actual_socknamelen > socknamelen)
- goto sock_or_realloc_error;
- }
-
- return sockname;
-
- sock_or_realloc_error:
- free(sockname);
- return NULL;
-}
-
-int _xcb_get_auth_info(int fd, xcb_auth_info_t *info, int display)
-{
- /* code adapted from Xlib/ConnDis.c, xtrans/Xtranssocket.c,
- xtrans/Xtransutils.c */
- struct sockaddr *sockname = NULL;
- int gotsockname = 0;
- Xauth *authptr = 0;
- int ret = 1;
-
- /* Some systems like hpux or Hurd do not expose peer names
- * for UNIX Domain Sockets, but this is irrelevant,
- * since compute_auth() ignores the peer name in this
- * case anyway.*/
- if ((sockname = get_peer_sock_name(getpeername, fd)) == NULL)
- {
- if ((sockname = get_peer_sock_name(getsockname, fd)) == NULL)
- return 0; /* can only authenticate sockets */
- if (sockname->sa_family != AF_UNIX)
- {
- free(sockname);
- return 0; /* except for AF_UNIX, sockets should have peernames */
- }
- gotsockname = 1;
- }
-
- authptr = get_authptr(sockname, display);
- if (authptr == 0)
- {
- free(sockname);
- return 0; /* cannot find good auth data */
- }
-
- info->namelen = memdup(&info->name, authptr->name, authptr->name_length);
- if (!info->namelen)
- goto no_auth; /* out of memory */
-
- if (!gotsockname)
- {
- free(sockname);
-
- if ((sockname = get_peer_sock_name(getsockname, fd)) == NULL)
- {
- free(info->name);
- goto no_auth; /* can only authenticate sockets */
- }
- }
-
- ret = compute_auth(info, authptr, sockname);
- if(!ret)
- {
- free(info->name);
- goto no_auth; /* cannot build auth record */
- }
-
- free(sockname);
- sockname = NULL;
-
- XauDisposeAuth(authptr);
- return ret;
-
- no_auth:
- free(sockname);
-
- info->name = 0;
- info->namelen = 0;
- XauDisposeAuth(authptr);
- return 0;
-}
+/* Copyright (C) 2001-2004 Bart Massey and Jamey Sharp.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the names of the authors or their
+ * institutions shall not be used in advertising or otherwise to promote the
+ * sale, use or other dealings in this Software without prior written
+ * authorization from the authors.
+ */
+
+/* Authorization systems for the X protocol. */
+
+#include <assert.h>
+#include <X11/Xauth.h>
+#include <sys/param.h>
+#include <unistd.h>
+#include <stdlib.h>
+#ifndef _MSC_VER
+#include <arpa/inet.h>
+#endif
+
+#ifdef __INTERIX
+/* _don't_ ask. interix has INADDR_LOOPBACK in here. */
+#include <rpc/types.h>
+#endif
+
+#ifdef _WIN32
+#include "xcb_windefs.h"
+#else
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <sys/un.h>
+#endif /* _WIN32 */
+
+#include "xcb.h"
+#include "xcbint.h"
+
+#ifdef HASXDMAUTH
+#include <X11/Xdmcp.h>
+#endif
+
+enum auth_protos {
+#ifdef HASXDMAUTH
+ AUTH_XA1,
+#endif
+ AUTH_MC1,
+ N_AUTH_PROTOS
+};
+
+#define AUTH_PROTO_XDM_AUTHORIZATION "XDM-AUTHORIZATION-1"
+#define AUTH_PROTO_MIT_MAGIC_COOKIE "MIT-MAGIC-COOKIE-1"
+
+static char *authnames[N_AUTH_PROTOS] = {
+#ifdef HASXDMAUTH
+ AUTH_PROTO_XDM_AUTHORIZATION,
+#endif
+ AUTH_PROTO_MIT_MAGIC_COOKIE,
+};
+
+static int authnameslen[N_AUTH_PROTOS] = {
+#ifdef HASXDMAUTH
+ sizeof(AUTH_PROTO_XDM_AUTHORIZATION) - 1,
+#endif
+ sizeof(AUTH_PROTO_MIT_MAGIC_COOKIE) - 1,
+};
+
+static size_t memdup(char **dst, void *src, size_t len)
+{
+ if(len)
+ *dst = malloc(len);
+ else
+ *dst = 0;
+ if(!*dst)
+ return 0;
+ memcpy(*dst, src, len);
+ return len;
+}
+
+static int authname_match(enum auth_protos kind, char *name, size_t namelen)
+{
+ if(authnameslen[kind] != namelen)
+ return 0;
+ if(memcmp(authnames[kind], name, namelen))
+ return 0;
+ return 1;
+}
+
+#define SIN6_ADDR(s) (&((struct sockaddr_in6 *)s)->sin6_addr)
+
+static Xauth *get_authptr(struct sockaddr *sockname, int display)
+{
+ char *addr = 0;
+ int addrlen = 0;
+ unsigned short family;
+ char hostnamebuf[256]; /* big enough for max hostname */
+ char dispbuf[40]; /* big enough to hold more than 2^64 base 10 */
+ int dispbuflen;
+
+ family = FamilyLocal; /* 256 */
+ switch(sockname->sa_family)
+ {
+#ifdef AF_INET6
+ case AF_INET6:
+ addr = (char *) SIN6_ADDR(sockname);
+ addrlen = sizeof(*SIN6_ADDR(sockname));
+ if(!IN6_IS_ADDR_V4MAPPED(SIN6_ADDR(sockname)))
+ {
+ if(!IN6_IS_ADDR_LOOPBACK(SIN6_ADDR(sockname)))
+ family = XCB_FAMILY_INTERNET_6;
+ break;
+ }
+ addr += 12;
+ /* if v4-mapped, fall through. */
+#endif
+ case AF_INET:
+ if(!addr)
+ addr = (char *) &((struct sockaddr_in *)sockname)->sin_addr;
+ addrlen = sizeof(((struct sockaddr_in *)sockname)->sin_addr);
+ if(*(in_addr_t *) addr != htonl(INADDR_LOOPBACK))
+ family = XCB_FAMILY_INTERNET;
+ break;
+ case AF_UNIX:
+ break;
+ default:
+ return 0; /* cannot authenticate this family */
+ }
+
+ dispbuflen = snprintf(dispbuf, sizeof(dispbuf), "%d", display);
+ if(dispbuflen < 0)
+ return 0;
+ /* snprintf may have truncate our text */
+ dispbuflen = MIN(dispbuflen, sizeof(dispbuf) - 1);
+
+ if (family == FamilyLocal) {
+ if (gethostname(hostnamebuf, sizeof(hostnamebuf)) == -1)
+ return 0; /* do not know own hostname */
+ addr = hostnamebuf;
+ addrlen = strlen(addr);
+ }
+
+ return XauGetBestAuthByAddr (family,
+ (unsigned short) addrlen, addr,
+ (unsigned short) dispbuflen, dispbuf,
+ N_AUTH_PROTOS, authnames, authnameslen);
+}
+
+#ifdef HASXDMAUTH
+static int next_nonce(void)
+{
+ static int nonce = 0;
+ static pthread_mutex_t nonce_mutex = PTHREAD_MUTEX_INITIALIZER;
+ int ret;
+ pthread_mutex_lock(&nonce_mutex);
+ ret = nonce++;
+ pthread_mutex_unlock(&nonce_mutex);
+ return ret;
+}
+
+static void do_append(char *buf, int *idxp, void *val, size_t valsize) {
+ memcpy(buf + *idxp, val, valsize);
+ *idxp += valsize;
+}
+#endif
+
+static int compute_auth(xcb_auth_info_t *info, Xauth *authptr, struct sockaddr *sockname)
+{
+ if (authname_match(AUTH_MC1, authptr->name, authptr->name_length)) {
+ info->datalen = memdup(&info->data, authptr->data, authptr->data_length);
+ if(!info->datalen)
+ return 0;
+ return 1;
+ }
+#ifdef HASXDMAUTH
+#define APPEND(buf,idx,val) do_append((buf),&(idx),&(val),sizeof(val))
+ if (authname_match(AUTH_XA1, authptr->name, authptr->name_length)) {
+ int j;
+
+ info->data = malloc(192 / 8);
+ if(!info->data)
+ return 0;
+
+ for (j = 0; j < 8; j++)
+ info->data[j] = authptr->data[j];
+ switch(sockname->sa_family) {
+ case AF_INET:
+ /*block*/ {
+ struct sockaddr_in *si = (struct sockaddr_in *) sockname;
+ APPEND(info->data, j, si->sin_addr.s_addr);
+ APPEND(info->data, j, si->sin_port);
+ }
+ break;
+#ifdef AF_INET6
+ case AF_INET6:
+ /*block*/ {
+ struct sockaddr_in6 *si6 = (struct sockaddr_in6 *) sockname;
+ if(IN6_IS_ADDR_V4MAPPED(SIN6_ADDR(sockname)))
+ {
+ do_append(info->data, &j, &si6->sin6_addr.s6_addr[12], 4);
+ APPEND(info->data, j, si6->sin6_port);
+ }
+ else
+ {
+ /* XDM-AUTHORIZATION-1 does not handle IPv6 correctly. Do the
+ same thing Xlib does: use all zeroes for the 4-byte address
+ and 2-byte port number. */
+ uint32_t fakeaddr = 0;
+ uint16_t fakeport = 0;
+ APPEND(info->data, j, fakeaddr);
+ APPEND(info->data, j, fakeport);
+ }
+ }
+ break;
+#endif
+ case AF_UNIX:
+ /*block*/ {
+ uint32_t fakeaddr = htonl(0xffffffff - next_nonce());
+ uint16_t fakeport = htons(getpid());
+ APPEND(info->data, j, fakeaddr);
+ APPEND(info->data, j, fakeport);
+ }
+ break;
+ default:
+ free(info->data);
+ return 0; /* do not know how to build this */
+ }
+ {
+ uint32_t now = htonl(time(0));
+ APPEND(info->data, j, now);
+ }
+ assert(j <= 192 / 8);
+ while (j < 192 / 8)
+ info->data[j++] = 0;
+ info->datalen = j;
+ XdmcpWrap ((unsigned char *) info->data, (unsigned char *) authptr->data + 8, (unsigned char *) info->data, info->datalen);
+ return 1;
+ }
+#undef APPEND
+#endif
+
+ return 0; /* Unknown authorization type */
+}
+
+/* `sockaddr_un.sun_path' typical size usually ranges between 92 and 108 */
+#define INITIAL_SOCKNAME_SLACK 108
+
+#ifndef WIN32
+typedef int (*LPFN_GETPEERNAME)(int,struct sockaddr *,socklen_t *);
+#endif
+/* Return a dynamically allocated socket address structure according
+ to the value returned by either getpeername() or getsockname()
+ (according to POSIX, applications should not assume a particular
+ length for `sockaddr_un.sun_path') */
+static struct sockaddr *get_peer_sock_name(LPFN_GETPEERNAME socket_func,
+ int fd)
+{
+ socklen_t socknamelen = sizeof(struct sockaddr) + INITIAL_SOCKNAME_SLACK;
+ socklen_t actual_socknamelen = socknamelen;
+ struct sockaddr *sockname = malloc(socknamelen);
+
+ if (sockname == NULL)
+ return NULL;
+
+ /* Both getpeername() and getsockname() truncates sockname if
+ there is not enough space and set the required length in
+ actual_socknamelen */
+ if (socket_func(fd, sockname, &actual_socknamelen) == -1)
+ goto sock_or_realloc_error;
+
+ if (actual_socknamelen > socknamelen)
+ {
+ struct sockaddr *new_sockname = NULL;
+ socknamelen = actual_socknamelen;
+
+ if ((new_sockname = realloc(sockname, actual_socknamelen)) == NULL)
+ goto sock_or_realloc_error;
+
+ sockname = new_sockname;
+
+ if (socket_func(fd, sockname, &actual_socknamelen) == -1 ||
+ actual_socknamelen > socknamelen)
+ goto sock_or_realloc_error;
+ }
+
+ return sockname;
+
+ sock_or_realloc_error:
+ free(sockname);
+ return NULL;
+}
+
+int _xcb_get_auth_info(int fd, xcb_auth_info_t *info, int display)
+{
+ /* code adapted from Xlib/ConnDis.c, xtrans/Xtranssocket.c,
+ xtrans/Xtransutils.c */
+ struct sockaddr *sockname = NULL;
+ int gotsockname = 0;
+ Xauth *authptr = 0;
+ int ret = 1;
+
+ /* Some systems like hpux or Hurd do not expose peer names
+ * for UNIX Domain Sockets, but this is irrelevant,
+ * since compute_auth() ignores the peer name in this
+ * case anyway.*/
+ if ((sockname = get_peer_sock_name(getpeername, fd)) == NULL)
+ {
+ if ((sockname = get_peer_sock_name(getsockname, fd)) == NULL)
+ return 0; /* can only authenticate sockets */
+ if (sockname->sa_family != AF_UNIX)
+ {
+ free(sockname);
+ return 0; /* except for AF_UNIX, sockets should have peernames */
+ }
+ gotsockname = 1;
+ }
+
+ authptr = get_authptr(sockname, display);
+ if (authptr == 0)
+ {
+ free(sockname);
+ return 0; /* cannot find good auth data */
+ }
+
+ info->namelen = memdup(&info->name, authptr->name, authptr->name_length);
+ if (!info->namelen)
+ goto no_auth; /* out of memory */
+
+ if (!gotsockname)
+ {
+ free(sockname);
+
+ if ((sockname = get_peer_sock_name(getsockname, fd)) == NULL)
+ {
+ free(info->name);
+ goto no_auth; /* can only authenticate sockets */
+ }
+ }
+
+ ret = compute_auth(info, authptr, sockname);
+ if(!ret)
+ {
+ free(info->name);
+ goto no_auth; /* cannot build auth record */
+ }
+
+ free(sockname);
+ sockname = NULL;
+
+ XauDisposeAuth(authptr);
+ return ret;
+
+ no_auth:
+ free(sockname);
+
+ info->name = 0;
+ info->namelen = 0;
+ XauDisposeAuth(authptr);
+ return 0;
+}
diff --git a/libxcb/src/xcb_in.c b/libxcb/src/xcb_in.c
index ccfb3e0f4..2825c25c3 100644
--- a/libxcb/src/xcb_in.c
+++ b/libxcb/src/xcb_in.c
@@ -1,706 +1,706 @@
-/* Copyright (C) 2001-2004 Bart Massey and Jamey Sharp.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- * Except as contained in this notice, the names of the authors or their
- * institutions shall not be used in advertising or otherwise to promote the
- * sale, use or other dealings in this Software without prior written
- * authorization from the authors.
- */
-
-/* Stuff that reads stuff from the server. */
-
-#include <assert.h>
-#include <string.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <errno.h>
-
-#include "xcb.h"
-#include "xcbext.h"
-#include "xcbint.h"
-#if USE_POLL
-#include <poll.h>
-#endif
-#ifndef _WIN32
-#include <sys/select.h>
-#include <sys/socket.h>
-#endif
-
-#ifdef _WIN32
-#include "xcb_windefs.h"
-#endif /* _WIN32 */
-
-#define XCB_ERROR 0
-#define XCB_REPLY 1
-#define XCB_XGE_EVENT 35
-
-#ifdef _MSC_VER
-#ifdef MSG_WAITALL
-#undef MSG_WAITALL
-#endif
-#endif
-
-/* required for compiling for Win32 using MinGW */
-#ifndef MSG_WAITALL
-#define MSG_WAITALL 0
-#endif
-
-struct event_list {
- xcb_generic_event_t *event;
- struct event_list *next;
-};
-
-struct reply_list {
- void *reply;
- struct reply_list *next;
-};
-
-typedef struct pending_reply {
- uint64_t first_request;
- uint64_t last_request;
- enum workarounds workaround;
- int flags;
- struct pending_reply *next;
-} pending_reply;
-
-typedef struct reader_list {
- uint64_t request;
- pthread_cond_t *data;
- struct reader_list *next;
-} reader_list;
-
-static void remove_finished_readers(reader_list **prev_reader, uint64_t completed)
-{
- while(*prev_reader && XCB_SEQUENCE_COMPARE((*prev_reader)->request, <=, completed))
- {
- /* If you don't have what you're looking for now, you never
- * will. Wake up and leave me alone. */
- pthread_cond_signal((*prev_reader)->data);
- *prev_reader = (*prev_reader)->next;
- }
-}
-
-static int read_packet(xcb_connection_t *c)
-{
- xcb_generic_reply_t genrep;
- int length = 32;
- int eventlength = 0; /* length after first 32 bytes for GenericEvents */
- void *buf;
- pending_reply *pend = 0;
- struct event_list *event;
-
- /* Wait for there to be enough data for us to read a whole packet */
- if(c->in.queue_len < length)
- return 0;
-
- /* Get the response type, length, and sequence number. */
- memcpy(&genrep, c->in.queue, sizeof(genrep));
-
- /* Compute 32-bit sequence number of this packet. */
- if((genrep.response_type & 0x7f) != XCB_KEYMAP_NOTIFY)
- {
- uint64_t lastread = c->in.request_read;
- c->in.request_read = (lastread & UINT64_C(0xffffffffffff0000)) | genrep.sequence;
- if(XCB_SEQUENCE_COMPARE(c->in.request_read, <, lastread))
- c->in.request_read += 0x10000;
- if(XCB_SEQUENCE_COMPARE(c->in.request_read, >, c->in.request_expected))
- c->in.request_expected = c->in.request_read;
-
- if(c->in.request_read != lastread)
- {
- if(c->in.current_reply)
- {
- _xcb_map_put(c->in.replies, lastread, c->in.current_reply);
- c->in.current_reply = 0;
- c->in.current_reply_tail = &c->in.current_reply;
- }
- c->in.request_completed = c->in.request_read - 1;
- }
-
- while(c->in.pending_replies &&
- c->in.pending_replies->workaround != WORKAROUND_EXTERNAL_SOCKET_OWNER &&
- XCB_SEQUENCE_COMPARE (c->in.pending_replies->last_request, <=, c->in.request_completed))
- {
- pending_reply *oldpend = c->in.pending_replies;
- c->in.pending_replies = oldpend->next;
- if(!oldpend->next)
- c->in.pending_replies_tail = &c->in.pending_replies;
- free(oldpend);
- }
-
- if(genrep.response_type == XCB_ERROR)
- c->in.request_completed = c->in.request_read;
-
- remove_finished_readers(&c->in.readers, c->in.request_completed);
- }
-
- if(genrep.response_type == XCB_ERROR || genrep.response_type == XCB_REPLY)
- {
- pend = c->in.pending_replies;
- if(pend &&
- !(XCB_SEQUENCE_COMPARE(pend->first_request, <=, c->in.request_read) &&
- (pend->workaround == WORKAROUND_EXTERNAL_SOCKET_OWNER ||
- XCB_SEQUENCE_COMPARE(c->in.request_read, <=, pend->last_request))))
- pend = 0;
- }
-
- /* For reply packets, check that the entire packet is available. */
- if(genrep.response_type == XCB_REPLY)
- {
- if(pend && pend->workaround == WORKAROUND_GLX_GET_FB_CONFIGS_BUG)
- {
- uint32_t *p = (uint32_t *) c->in.queue;
- genrep.length = p[2] * p[3] * 2;
- }
- length += genrep.length * 4;
- }
-
- /* XGE events may have sizes > 32 */
- if ((genrep.response_type & 0x7f) == XCB_XGE_EVENT)
- eventlength = genrep.length * 4;
-
- buf = malloc(length + eventlength +
- (genrep.response_type == XCB_REPLY ? 0 : sizeof(uint32_t)));
- if(!buf)
- {
- _xcb_conn_shutdown(c);
- return 0;
- }
-
- if(_xcb_in_read_block(c, buf, length) <= 0)
- {
- free(buf);
- return 0;
- }
-
- /* pull in XGE event data if available, append after event struct */
- if (eventlength)
- {
- if(_xcb_in_read_block(c, &((xcb_generic_event_t*)buf)[1], eventlength) <= 0)
- {
- free(buf);
- return 0;
- }
- }
-
- if(pend && (pend->flags & XCB_REQUEST_DISCARD_REPLY))
- {
- free(buf);
- return 1;
- }
-
- if(genrep.response_type != XCB_REPLY)
- ((xcb_generic_event_t *) buf)->full_sequence = c->in.request_read;
-
- /* reply, or checked error */
- if( genrep.response_type == XCB_REPLY ||
- (genrep.response_type == XCB_ERROR && pend && (pend->flags & XCB_REQUEST_CHECKED)))
- {
- struct reply_list *cur = malloc(sizeof(struct reply_list));
- if(!cur)
- {
- _xcb_conn_shutdown(c);
- free(buf);
- return 0;
- }
- cur->reply = buf;
- cur->next = 0;
- *c->in.current_reply_tail = cur;
- c->in.current_reply_tail = &cur->next;
- if(c->in.readers && c->in.readers->request == c->in.request_read)
- pthread_cond_signal(c->in.readers->data);
- return 1;
- }
-
- /* event, or unchecked error */
- event = malloc(sizeof(struct event_list));
- if(!event)
- {
- _xcb_conn_shutdown(c);
- free(buf);
- return 0;
- }
- event->event = buf;
- event->next = 0;
- *c->in.events_tail = event;
- c->in.events_tail = &event->next;
- pthread_cond_signal(&c->in.event_cond);
- return 1; /* I have something for you... */
-}
-
-static xcb_generic_event_t *get_event(xcb_connection_t *c)
-{
- struct event_list *cur = c->in.events;
- xcb_generic_event_t *ret;
- if(!c->in.events)
- return 0;
- ret = cur->event;
- c->in.events = cur->next;
- if(!cur->next)
- c->in.events_tail = &c->in.events;
- free(cur);
- return ret;
-}
-
-static void free_reply_list(struct reply_list *head)
-{
- while(head)
- {
- struct reply_list *cur = head;
- head = cur->next;
- free(cur->reply);
- free(cur);
- }
-}
-
-static int read_block(const int fd, void *buf, const ssize_t len)
-{
- int done = 0;
- while(done < len)
- {
- int ret = recv(fd, ((char *) buf) + done, len - done,MSG_WAITALL);
- if(ret > 0)
- done += ret;
-#ifndef _WIN32
- if(ret < 0 && errno == EAGAIN)
-#else
- if(ret == SOCKET_ERROR && WSAGetLastError() == WSAEWOULDBLOCK)
-#endif /* !_Win32 */
- {
-#if USE_POLL
- struct pollfd pfd;
- pfd.fd = fd;
- pfd.events = POLLIN;
- pfd.revents = 0;
- do {
- ret = poll(&pfd, 1, -1);
- } while (ret == -1 && errno == EINTR);
-#else
- fd_set fds;
- FD_ZERO(&fds);
- FD_SET(fd, &fds);
-
- /* Initializing errno here makes sure that for Win32 this loop will execute only once */
- errno = 0;
- do {
- ret = select(fd + 1, &fds, 0, 0, 0);
- } while (ret == -1 && errno == EINTR);
-#endif /* USE_POLL */
- }
- if(ret <= 0)
- return ret;
- }
- return len;
-}
-
-static int poll_for_reply(xcb_connection_t *c, uint64_t request, void **reply, xcb_generic_error_t **error)
-{
- struct reply_list *head;
-
- /* If an error occurred when issuing the request, fail immediately. */
- if(!request)
- head = 0;
- /* We've read requests past the one we want, so if it has replies we have
- * them all and they're in the replies map. */
- else if(XCB_SEQUENCE_COMPARE(request, <, c->in.request_read))
- {
- head = _xcb_map_remove(c->in.replies, request);
- if(head && head->next)
- _xcb_map_put(c->in.replies, request, head->next);
- }
- /* We're currently processing the responses to the request we want, and we
- * have a reply ready to return. So just return it without blocking. */
- else if(request == c->in.request_read && c->in.current_reply)
- {
- head = c->in.current_reply;
- c->in.current_reply = head->next;
- if(!head->next)
- c->in.current_reply_tail = &c->in.current_reply;
- }
- /* We know this request can't have any more replies, and we've already
- * established it doesn't have a reply now. Don't bother blocking. */
- else if(request == c->in.request_completed)
- head = 0;
- /* We may have more replies on the way for this request: block until we're
- * sure. */
- else
- return 0;
-
- if(error)
- *error = 0;
- *reply = 0;
-
- if(head)
- {
- if(((xcb_generic_reply_t *) head->reply)->response_type == XCB_ERROR)
- {
- if(error)
- *error = head->reply;
- else
- free(head->reply);
- }
- else
- *reply = head->reply;
-
- free(head);
- }
-
- return 1;
-}
-
-static void insert_reader(reader_list **prev_reader, reader_list *reader, uint64_t request, pthread_cond_t *cond)
-{
- while(*prev_reader && XCB_SEQUENCE_COMPARE((*prev_reader)->request, <=, request))
- prev_reader = &(*prev_reader)->next;
- reader->request = request;
- reader->data = cond;
- reader->next = *prev_reader;
- *prev_reader = reader;
-}
-
-static void remove_reader(reader_list **prev_reader, reader_list *reader)
-{
- while(*prev_reader && XCB_SEQUENCE_COMPARE((*prev_reader)->request, <=, reader->request))
- if(*prev_reader == reader)
- {
- *prev_reader = (*prev_reader)->next;
- break;
- }
-}
-
-static void *wait_for_reply(xcb_connection_t *c, uint64_t request, xcb_generic_error_t **e)
-{
- void *ret = 0;
-
- /* If this request has not been written yet, write it. */
- if(c->out.return_socket || _xcb_out_flush_to(c, request))
- {
- pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
- reader_list reader;
-
- insert_reader(&c->in.readers, &reader, request, &cond);
-
- while(!poll_for_reply(c, request, &ret, e))
- if(!_xcb_conn_wait(c, &cond, 0, 0))
- break;
-
- remove_reader(&c->in.readers, &reader);
- pthread_cond_destroy(&cond);
- }
-
- _xcb_in_wake_up_next_reader(c);
- return ret;
-}
-
-static uint64_t widen(xcb_connection_t *c, unsigned int request)
-{
- uint64_t widened_request = (c->out.request & UINT64_C(0xffffffff00000000)) | request;
- if(widened_request > c->out.request)
- widened_request -= UINT64_C(1) << 32;
- return widened_request;
-}
-
-/* Public interface */
-
-void *xcb_wait_for_reply(xcb_connection_t *c, unsigned int request, xcb_generic_error_t **e)
-{
- void *ret;
- if(e)
- *e = 0;
- if(c->has_error)
- return 0;
-
- pthread_mutex_lock(&c->iolock);
- ret = wait_for_reply(c, widen(c, request), e);
- pthread_mutex_unlock(&c->iolock);
- return ret;
-}
-
-static void insert_pending_discard(xcb_connection_t *c, pending_reply **prev_next, uint64_t seq)
-{
- pending_reply *pend;
- pend = malloc(sizeof(*pend));
- if(!pend)
- {
- _xcb_conn_shutdown(c);
- return;
- }
-
- pend->first_request = seq;
- pend->last_request = seq;
- pend->workaround = 0;
- pend->flags = XCB_REQUEST_DISCARD_REPLY;
- pend->next = *prev_next;
- *prev_next = pend;
-
- if(!pend->next)
- c->in.pending_replies_tail = &pend->next;
-}
-
-static void discard_reply(xcb_connection_t *c, uint64_t request)
-{
- void *reply;
- pending_reply **prev_pend;
-
- /* Free any replies or errors that we've already read. Stop if
- * xcb_wait_for_reply would block or we've run out of replies. */
- while(poll_for_reply(c, request, &reply, 0) && reply)
- free(reply);
-
- /* If we've proven there are no more responses coming, we're done. */
- if(XCB_SEQUENCE_COMPARE(request, <=, c->in.request_completed))
- return;
-
- /* Walk the list of pending requests. Mark the first match for deletion. */
- for(prev_pend = &c->in.pending_replies; *prev_pend; prev_pend = &(*prev_pend)->next)
- {
- if(XCB_SEQUENCE_COMPARE((*prev_pend)->first_request, >, request))
- break;
-
- if((*prev_pend)->first_request == request)
- {
- /* Pending reply found. Mark for discard: */
- (*prev_pend)->flags |= XCB_REQUEST_DISCARD_REPLY;
- return;
- }
- }
-
- /* Pending reply not found (likely due to _unchecked request). Create one: */
- insert_pending_discard(c, prev_pend, request);
-}
-
-void xcb_discard_reply(xcb_connection_t *c, unsigned int sequence)
-{
- if(c->has_error)
- return;
-
- /* If an error occurred when issuing the request, fail immediately. */
- if(!sequence)
- return;
-
- pthread_mutex_lock(&c->iolock);
- discard_reply(c, widen(c, sequence));
- pthread_mutex_unlock(&c->iolock);
-}
-
-int xcb_poll_for_reply(xcb_connection_t *c, unsigned int request, void **reply, xcb_generic_error_t **error)
-{
- int ret;
- if(c->has_error)
- {
- *reply = 0;
- if(error)
- *error = 0;
- return 1; /* would not block */
- }
- assert(reply != 0);
- pthread_mutex_lock(&c->iolock);
- ret = poll_for_reply(c, widen(c, request), reply, error);
- pthread_mutex_unlock(&c->iolock);
- return ret;
-}
-
-xcb_generic_event_t *xcb_wait_for_event(xcb_connection_t *c)
-{
- xcb_generic_event_t *ret;
- if(c->has_error)
- return 0;
- pthread_mutex_lock(&c->iolock);
- /* get_event returns 0 on empty list. */
- while(!(ret = get_event(c)))
- if(!_xcb_conn_wait(c, &c->in.event_cond, 0, 0))
- break;
-
- _xcb_in_wake_up_next_reader(c);
- pthread_mutex_unlock(&c->iolock);
- return ret;
-}
-
-static xcb_generic_event_t *poll_for_next_event(xcb_connection_t *c, int queued)
-{
- xcb_generic_event_t *ret = 0;
- if(!c->has_error)
- {
- pthread_mutex_lock(&c->iolock);
- /* FIXME: follow X meets Z architecture changes. */
- ret = get_event(c);
- if(!ret && !queued && c->in.reading == 0 && _xcb_in_read(c)) /* _xcb_in_read shuts down the connection on error */
- ret = get_event(c);
- pthread_mutex_unlock(&c->iolock);
- }
- return ret;
-}
-
-xcb_generic_event_t *xcb_poll_for_event(xcb_connection_t *c)
-{
- return poll_for_next_event(c, 0);
-}
-
-xcb_generic_event_t *xcb_poll_for_queued_event(xcb_connection_t *c)
-{
- return poll_for_next_event(c, 1);
-}
-
-xcb_generic_error_t *xcb_request_check(xcb_connection_t *c, xcb_void_cookie_t cookie)
-{
- uint64_t request;
- xcb_generic_error_t *ret = 0;
- void *reply;
- if(c->has_error)
- return 0;
- pthread_mutex_lock(&c->iolock);
- request = widen(c, cookie.sequence);
- if(XCB_SEQUENCE_COMPARE(request, >=, c->in.request_expected)
- && XCB_SEQUENCE_COMPARE(request, >, c->in.request_completed))
- {
- _xcb_out_send_sync(c);
- _xcb_out_flush_to(c, c->out.request);
- }
- reply = wait_for_reply(c, request, &ret);
- assert(!reply);
- pthread_mutex_unlock(&c->iolock);
- return ret;
-}
-
-/* Private interface */
-
-int _xcb_in_init(_xcb_in *in)
-{
- if(pthread_cond_init(&in->event_cond, 0))
- return 0;
- in->reading = 0;
-
- in->queue_len = 0;
-
- in->request_read = 0;
- in->request_completed = 0;
-
- in->replies = _xcb_map_new();
- if(!in->replies)
- return 0;
-
- in->current_reply_tail = &in->current_reply;
- in->events_tail = &in->events;
- in->pending_replies_tail = &in->pending_replies;
-
- return 1;
-}
-
-void _xcb_in_destroy(_xcb_in *in)
-{
- pthread_cond_destroy(&in->event_cond);
- free_reply_list(in->current_reply);
- _xcb_map_delete(in->replies, (void (*)(void *)) free_reply_list);
- while(in->events)
- {
- struct event_list *e = in->events;
- in->events = e->next;
- free(e->event);
- free(e);
- }
- while(in->pending_replies)
- {
- pending_reply *pend = in->pending_replies;
- in->pending_replies = pend->next;
- free(pend);
- }
-}
-
-void _xcb_in_wake_up_next_reader(xcb_connection_t *c)
-{
- int pthreadret;
- if(c->in.readers)
- pthreadret = pthread_cond_signal(c->in.readers->data);
- else
- pthreadret = pthread_cond_signal(&c->in.event_cond);
- assert(pthreadret == 0);
-}
-
-int _xcb_in_expect_reply(xcb_connection_t *c, uint64_t request, enum workarounds workaround, int flags)
-{
- pending_reply *pend = malloc(sizeof(pending_reply));
- assert(workaround != WORKAROUND_NONE || flags != 0);
- if(!pend)
- {
- _xcb_conn_shutdown(c);
- return 0;
- }
- pend->first_request = pend->last_request = request;
- pend->workaround = workaround;
- pend->flags = flags;
- pend->next = 0;
- *c->in.pending_replies_tail = pend;
- c->in.pending_replies_tail = &pend->next;
- return 1;
-}
-
-void _xcb_in_replies_done(xcb_connection_t *c)
-{
- struct pending_reply *pend;
- if (c->in.pending_replies_tail != &c->in.pending_replies)
- {
- pend = container_of(c->in.pending_replies_tail, struct pending_reply, next);
- if(pend->workaround == WORKAROUND_EXTERNAL_SOCKET_OWNER)
- {
- pend->last_request = c->out.request;
- pend->workaround = WORKAROUND_NONE;
- }
- }
-}
-
-int _xcb_in_read(xcb_connection_t *c)
-{
- int n = recv(c->fd, c->in.queue + c->in.queue_len, sizeof(c->in.queue) - c->in.queue_len,MSG_WAITALL);
- if(n > 0)
- c->in.queue_len += n;
- while(read_packet(c))
- /* empty */;
-#ifndef _WIN32
- if((n > 0) || (n < 0 && errno == EAGAIN))
-#else
- if((n > 0) || (n < 0 && WSAGetLastError() == WSAEWOULDBLOCK))
-#endif /* !_WIN32 */
- return 1;
- _xcb_conn_shutdown(c);
- return 0;
-}
-
-int _xcb_in_read_block(xcb_connection_t *c, void *buf, int len)
-{
- int done = c->in.queue_len;
- if(len < done)
- done = len;
-
- memcpy(buf, c->in.queue, done);
- c->in.queue_len -= done;
- memmove(c->in.queue, c->in.queue + done, c->in.queue_len);
-
- if(len > done)
- {
- int ret = read_block(c->fd, (char *) buf + done, len - done);
- if(ret <= 0)
- {
- _xcb_conn_shutdown(c);
- return ret;
- }
- }
-
- return len;
-}
+/* Copyright (C) 2001-2004 Bart Massey and Jamey Sharp.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the names of the authors or their
+ * institutions shall not be used in advertising or otherwise to promote the
+ * sale, use or other dealings in this Software without prior written
+ * authorization from the authors.
+ */
+
+/* Stuff that reads stuff from the server. */
+
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <errno.h>
+
+#include "xcb.h"
+#include "xcbext.h"
+#include "xcbint.h"
+#if USE_POLL
+#include <poll.h>
+#endif
+#ifndef _WIN32
+#include <sys/select.h>
+#include <sys/socket.h>
+#endif
+
+#ifdef _WIN32
+#include "xcb_windefs.h"
+#endif /* _WIN32 */
+
+#define XCB_ERROR 0
+#define XCB_REPLY 1
+#define XCB_XGE_EVENT 35
+
+#ifdef _MSC_VER
+#ifdef MSG_WAITALL
+#undef MSG_WAITALL
+#endif
+#endif
+
+/* required for compiling for Win32 using MinGW */
+#ifndef MSG_WAITALL
+#define MSG_WAITALL 0
+#endif
+
+struct event_list {
+ xcb_generic_event_t *event;
+ struct event_list *next;
+};
+
+struct reply_list {
+ void *reply;
+ struct reply_list *next;
+};
+
+typedef struct pending_reply {
+ uint64_t first_request;
+ uint64_t last_request;
+ enum workarounds workaround;
+ int flags;
+ struct pending_reply *next;
+} pending_reply;
+
+typedef struct reader_list {
+ uint64_t request;
+ pthread_cond_t *data;
+ struct reader_list *next;
+} reader_list;
+
+static void remove_finished_readers(reader_list **prev_reader, uint64_t completed)
+{
+ while(*prev_reader && XCB_SEQUENCE_COMPARE((*prev_reader)->request, <=, completed))
+ {
+ /* If you don't have what you're looking for now, you never
+ * will. Wake up and leave me alone. */
+ pthread_cond_signal((*prev_reader)->data);
+ *prev_reader = (*prev_reader)->next;
+ }
+}
+
+static int read_packet(xcb_connection_t *c)
+{
+ xcb_generic_reply_t genrep;
+ int length = 32;
+ int eventlength = 0; /* length after first 32 bytes for GenericEvents */
+ void *buf;
+ pending_reply *pend = 0;
+ struct event_list *event;
+
+ /* Wait for there to be enough data for us to read a whole packet */
+ if(c->in.queue_len < length)
+ return 0;
+
+ /* Get the response type, length, and sequence number. */
+ memcpy(&genrep, c->in.queue, sizeof(genrep));
+
+ /* Compute 32-bit sequence number of this packet. */
+ if((genrep.response_type & 0x7f) != XCB_KEYMAP_NOTIFY)
+ {
+ uint64_t lastread = c->in.request_read;
+ c->in.request_read = (lastread & UINT64_C(0xffffffffffff0000)) | genrep.sequence;
+ if(XCB_SEQUENCE_COMPARE(c->in.request_read, <, lastread))
+ c->in.request_read += 0x10000;
+ if(XCB_SEQUENCE_COMPARE(c->in.request_read, >, c->in.request_expected))
+ c->in.request_expected = c->in.request_read;
+
+ if(c->in.request_read != lastread)
+ {
+ if(c->in.current_reply)
+ {
+ _xcb_map_put(c->in.replies, lastread, c->in.current_reply);
+ c->in.current_reply = 0;
+ c->in.current_reply_tail = &c->in.current_reply;
+ }
+ c->in.request_completed = c->in.request_read - 1;
+ }
+
+ while(c->in.pending_replies &&
+ c->in.pending_replies->workaround != WORKAROUND_EXTERNAL_SOCKET_OWNER &&
+ XCB_SEQUENCE_COMPARE (c->in.pending_replies->last_request, <=, c->in.request_completed))
+ {
+ pending_reply *oldpend = c->in.pending_replies;
+ c->in.pending_replies = oldpend->next;
+ if(!oldpend->next)
+ c->in.pending_replies_tail = &c->in.pending_replies;
+ free(oldpend);
+ }
+
+ if(genrep.response_type == XCB_ERROR)
+ c->in.request_completed = c->in.request_read;
+
+ remove_finished_readers(&c->in.readers, c->in.request_completed);
+ }
+
+ if(genrep.response_type == XCB_ERROR || genrep.response_type == XCB_REPLY)
+ {
+ pend = c->in.pending_replies;
+ if(pend &&
+ !(XCB_SEQUENCE_COMPARE(pend->first_request, <=, c->in.request_read) &&
+ (pend->workaround == WORKAROUND_EXTERNAL_SOCKET_OWNER ||
+ XCB_SEQUENCE_COMPARE(c->in.request_read, <=, pend->last_request))))
+ pend = 0;
+ }
+
+ /* For reply packets, check that the entire packet is available. */
+ if(genrep.response_type == XCB_REPLY)
+ {
+ if(pend && pend->workaround == WORKAROUND_GLX_GET_FB_CONFIGS_BUG)
+ {
+ uint32_t *p = (uint32_t *) c->in.queue;
+ genrep.length = p[2] * p[3] * 2;
+ }
+ length += genrep.length * 4;
+ }
+
+ /* XGE events may have sizes > 32 */
+ if ((genrep.response_type & 0x7f) == XCB_XGE_EVENT)
+ eventlength = genrep.length * 4;
+
+ buf = malloc(length + eventlength +
+ (genrep.response_type == XCB_REPLY ? 0 : sizeof(uint32_t)));
+ if(!buf)
+ {
+ _xcb_conn_shutdown(c);
+ return 0;
+ }
+
+ if(_xcb_in_read_block(c, buf, length) <= 0)
+ {
+ free(buf);
+ return 0;
+ }
+
+ /* pull in XGE event data if available, append after event struct */
+ if (eventlength)
+ {
+ if(_xcb_in_read_block(c, &((xcb_generic_event_t*)buf)[1], eventlength) <= 0)
+ {
+ free(buf);
+ return 0;
+ }
+ }
+
+ if(pend && (pend->flags & XCB_REQUEST_DISCARD_REPLY))
+ {
+ free(buf);
+ return 1;
+ }
+
+ if(genrep.response_type != XCB_REPLY)
+ ((xcb_generic_event_t *) buf)->full_sequence = c->in.request_read;
+
+ /* reply, or checked error */
+ if( genrep.response_type == XCB_REPLY ||
+ (genrep.response_type == XCB_ERROR && pend && (pend->flags & XCB_REQUEST_CHECKED)))
+ {
+ struct reply_list *cur = malloc(sizeof(struct reply_list));
+ if(!cur)
+ {
+ _xcb_conn_shutdown(c);
+ free(buf);
+ return 0;
+ }
+ cur->reply = buf;
+ cur->next = 0;
+ *c->in.current_reply_tail = cur;
+ c->in.current_reply_tail = &cur->next;
+ if(c->in.readers && c->in.readers->request == c->in.request_read)
+ pthread_cond_signal(c->in.readers->data);
+ return 1;
+ }
+
+ /* event, or unchecked error */
+ event = malloc(sizeof(struct event_list));
+ if(!event)
+ {
+ _xcb_conn_shutdown(c);
+ free(buf);
+ return 0;
+ }
+ event->event = buf;
+ event->next = 0;
+ *c->in.events_tail = event;
+ c->in.events_tail = &event->next;
+ pthread_cond_signal(&c->in.event_cond);
+ return 1; /* I have something for you... */
+}
+
+static xcb_generic_event_t *get_event(xcb_connection_t *c)
+{
+ struct event_list *cur = c->in.events;
+ xcb_generic_event_t *ret;
+ if(!c->in.events)
+ return 0;
+ ret = cur->event;
+ c->in.events = cur->next;
+ if(!cur->next)
+ c->in.events_tail = &c->in.events;
+ free(cur);
+ return ret;
+}
+
+static void free_reply_list(struct reply_list *head)
+{
+ while(head)
+ {
+ struct reply_list *cur = head;
+ head = cur->next;
+ free(cur->reply);
+ free(cur);
+ }
+}
+
+static int read_block(const int fd, void *buf, const ssize_t len)
+{
+ int done = 0;
+ while(done < len)
+ {
+ int ret = recv(fd, ((char *) buf) + done, len - done,MSG_WAITALL);
+ if(ret > 0)
+ done += ret;
+#ifndef _WIN32
+ if(ret < 0 && errno == EAGAIN)
+#else
+ if(ret == SOCKET_ERROR && WSAGetLastError() == WSAEWOULDBLOCK)
+#endif /* !_Win32 */
+ {
+#if USE_POLL
+ struct pollfd pfd;
+ pfd.fd = fd;
+ pfd.events = POLLIN;
+ pfd.revents = 0;
+ do {
+ ret = poll(&pfd, 1, -1);
+ } while (ret == -1 && errno == EINTR);
+#else
+ fd_set fds;
+ FD_ZERO(&fds);
+ FD_SET(fd, &fds);
+
+ /* Initializing errno here makes sure that for Win32 this loop will execute only once */
+ errno = 0;
+ do {
+ ret = select(fd + 1, &fds, 0, 0, 0);
+ } while (ret == -1 && errno == EINTR);
+#endif /* USE_POLL */
+ }
+ if(ret <= 0)
+ return ret;
+ }
+ return len;
+}
+
+static int poll_for_reply(xcb_connection_t *c, uint64_t request, void **reply, xcb_generic_error_t **error)
+{
+ struct reply_list *head;
+
+ /* If an error occurred when issuing the request, fail immediately. */
+ if(!request)
+ head = 0;
+ /* We've read requests past the one we want, so if it has replies we have
+ * them all and they're in the replies map. */
+ else if(XCB_SEQUENCE_COMPARE(request, <, c->in.request_read))
+ {
+ head = _xcb_map_remove(c->in.replies, request);
+ if(head && head->next)
+ _xcb_map_put(c->in.replies, request, head->next);
+ }
+ /* We're currently processing the responses to the request we want, and we
+ * have a reply ready to return. So just return it without blocking. */
+ else if(request == c->in.request_read && c->in.current_reply)
+ {
+ head = c->in.current_reply;
+ c->in.current_reply = head->next;
+ if(!head->next)
+ c->in.current_reply_tail = &c->in.current_reply;
+ }
+ /* We know this request can't have any more replies, and we've already
+ * established it doesn't have a reply now. Don't bother blocking. */
+ else if(request == c->in.request_completed)
+ head = 0;
+ /* We may have more replies on the way for this request: block until we're
+ * sure. */
+ else
+ return 0;
+
+ if(error)
+ *error = 0;
+ *reply = 0;
+
+ if(head)
+ {
+ if(((xcb_generic_reply_t *) head->reply)->response_type == XCB_ERROR)
+ {
+ if(error)
+ *error = head->reply;
+ else
+ free(head->reply);
+ }
+ else
+ *reply = head->reply;
+
+ free(head);
+ }
+
+ return 1;
+}
+
+static void insert_reader(reader_list **prev_reader, reader_list *reader, uint64_t request, pthread_cond_t *cond)
+{
+ while(*prev_reader && XCB_SEQUENCE_COMPARE((*prev_reader)->request, <=, request))
+ prev_reader = &(*prev_reader)->next;
+ reader->request = request;
+ reader->data = cond;
+ reader->next = *prev_reader;
+ *prev_reader = reader;
+}
+
+static void remove_reader(reader_list **prev_reader, reader_list *reader)
+{
+ while(*prev_reader && XCB_SEQUENCE_COMPARE((*prev_reader)->request, <=, reader->request))
+ if(*prev_reader == reader)
+ {
+ *prev_reader = (*prev_reader)->next;
+ break;
+ }
+}
+
+static void *wait_for_reply(xcb_connection_t *c, uint64_t request, xcb_generic_error_t **e)
+{
+ void *ret = 0;
+
+ /* If this request has not been written yet, write it. */
+ if(c->out.return_socket || _xcb_out_flush_to(c, request))
+ {
+ pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
+ reader_list reader;
+
+ insert_reader(&c->in.readers, &reader, request, &cond);
+
+ while(!poll_for_reply(c, request, &ret, e))
+ if(!_xcb_conn_wait(c, &cond, 0, 0))
+ break;
+
+ remove_reader(&c->in.readers, &reader);
+ pthread_cond_destroy(&cond);
+ }
+
+ _xcb_in_wake_up_next_reader(c);
+ return ret;
+}
+
+static uint64_t widen(xcb_connection_t *c, unsigned int request)
+{
+ uint64_t widened_request = (c->out.request & UINT64_C(0xffffffff00000000)) | request;
+ if(widened_request > c->out.request)
+ widened_request -= UINT64_C(1) << 32;
+ return widened_request;
+}
+
+/* Public interface */
+
+void *xcb_wait_for_reply(xcb_connection_t *c, unsigned int request, xcb_generic_error_t **e)
+{
+ void *ret;
+ if(e)
+ *e = 0;
+ if(c->has_error)
+ return 0;
+
+ pthread_mutex_lock(&c->iolock);
+ ret = wait_for_reply(c, widen(c, request), e);
+ pthread_mutex_unlock(&c->iolock);
+ return ret;
+}
+
+static void insert_pending_discard(xcb_connection_t *c, pending_reply **prev_next, uint64_t seq)
+{
+ pending_reply *pend;
+ pend = malloc(sizeof(*pend));
+ if(!pend)
+ {
+ _xcb_conn_shutdown(c);
+ return;
+ }
+
+ pend->first_request = seq;
+ pend->last_request = seq;
+ pend->workaround = 0;
+ pend->flags = XCB_REQUEST_DISCARD_REPLY;
+ pend->next = *prev_next;
+ *prev_next = pend;
+
+ if(!pend->next)
+ c->in.pending_replies_tail = &pend->next;
+}
+
+static void discard_reply(xcb_connection_t *c, uint64_t request)
+{
+ void *reply;
+ pending_reply **prev_pend;
+
+ /* Free any replies or errors that we've already read. Stop if
+ * xcb_wait_for_reply would block or we've run out of replies. */
+ while(poll_for_reply(c, request, &reply, 0) && reply)
+ free(reply);
+
+ /* If we've proven there are no more responses coming, we're done. */
+ if(XCB_SEQUENCE_COMPARE(request, <=, c->in.request_completed))
+ return;
+
+ /* Walk the list of pending requests. Mark the first match for deletion. */
+ for(prev_pend = &c->in.pending_replies; *prev_pend; prev_pend = &(*prev_pend)->next)
+ {
+ if(XCB_SEQUENCE_COMPARE((*prev_pend)->first_request, >, request))
+ break;
+
+ if((*prev_pend)->first_request == request)
+ {
+ /* Pending reply found. Mark for discard: */
+ (*prev_pend)->flags |= XCB_REQUEST_DISCARD_REPLY;
+ return;
+ }
+ }
+
+ /* Pending reply not found (likely due to _unchecked request). Create one: */
+ insert_pending_discard(c, prev_pend, request);
+}
+
+void xcb_discard_reply(xcb_connection_t *c, unsigned int sequence)
+{
+ if(c->has_error)
+ return;
+
+ /* If an error occurred when issuing the request, fail immediately. */
+ if(!sequence)
+ return;
+
+ pthread_mutex_lock(&c->iolock);
+ discard_reply(c, widen(c, sequence));
+ pthread_mutex_unlock(&c->iolock);
+}
+
+int xcb_poll_for_reply(xcb_connection_t *c, unsigned int request, void **reply, xcb_generic_error_t **error)
+{
+ int ret;
+ if(c->has_error)
+ {
+ *reply = 0;
+ if(error)
+ *error = 0;
+ return 1; /* would not block */
+ }
+ assert(reply != 0);
+ pthread_mutex_lock(&c->iolock);
+ ret = poll_for_reply(c, widen(c, request), reply, error);
+ pthread_mutex_unlock(&c->iolock);
+ return ret;
+}
+
+xcb_generic_event_t *xcb_wait_for_event(xcb_connection_t *c)
+{
+ xcb_generic_event_t *ret;
+ if(c->has_error)
+ return 0;
+ pthread_mutex_lock(&c->iolock);
+ /* get_event returns 0 on empty list. */
+ while(!(ret = get_event(c)))
+ if(!_xcb_conn_wait(c, &c->in.event_cond, 0, 0))
+ break;
+
+ _xcb_in_wake_up_next_reader(c);
+ pthread_mutex_unlock(&c->iolock);
+ return ret;
+}
+
+static xcb_generic_event_t *poll_for_next_event(xcb_connection_t *c, int queued)
+{
+ xcb_generic_event_t *ret = 0;
+ if(!c->has_error)
+ {
+ pthread_mutex_lock(&c->iolock);
+ /* FIXME: follow X meets Z architecture changes. */
+ ret = get_event(c);
+ if(!ret && !queued && c->in.reading == 0 && _xcb_in_read(c)) /* _xcb_in_read shuts down the connection on error */
+ ret = get_event(c);
+ pthread_mutex_unlock(&c->iolock);
+ }
+ return ret;
+}
+
+xcb_generic_event_t *xcb_poll_for_event(xcb_connection_t *c)
+{
+ return poll_for_next_event(c, 0);
+}
+
+xcb_generic_event_t *xcb_poll_for_queued_event(xcb_connection_t *c)
+{
+ return poll_for_next_event(c, 1);
+}
+
+xcb_generic_error_t *xcb_request_check(xcb_connection_t *c, xcb_void_cookie_t cookie)
+{
+ uint64_t request;
+ xcb_generic_error_t *ret = 0;
+ void *reply;
+ if(c->has_error)
+ return 0;
+ pthread_mutex_lock(&c->iolock);
+ request = widen(c, cookie.sequence);
+ if(XCB_SEQUENCE_COMPARE(request, >=, c->in.request_expected)
+ && XCB_SEQUENCE_COMPARE(request, >, c->in.request_completed))
+ {
+ _xcb_out_send_sync(c);
+ _xcb_out_flush_to(c, c->out.request);
+ }
+ reply = wait_for_reply(c, request, &ret);
+ assert(!reply);
+ pthread_mutex_unlock(&c->iolock);
+ return ret;
+}
+
+/* Private interface */
+
+int _xcb_in_init(_xcb_in *in)
+{
+ if(pthread_cond_init(&in->event_cond, 0))
+ return 0;
+ in->reading = 0;
+
+ in->queue_len = 0;
+
+ in->request_read = 0;
+ in->request_completed = 0;
+
+ in->replies = _xcb_map_new();
+ if(!in->replies)
+ return 0;
+
+ in->current_reply_tail = &in->current_reply;
+ in->events_tail = &in->events;
+ in->pending_replies_tail = &in->pending_replies;
+
+ return 1;
+}
+
+void _xcb_in_destroy(_xcb_in *in)
+{
+ pthread_cond_destroy(&in->event_cond);
+ free_reply_list(in->current_reply);
+ _xcb_map_delete(in->replies, (void (*)(void *)) free_reply_list);
+ while(in->events)
+ {
+ struct event_list *e = in->events;
+ in->events = e->next;
+ free(e->event);
+ free(e);
+ }
+ while(in->pending_replies)
+ {
+ pending_reply *pend = in->pending_replies;
+ in->pending_replies = pend->next;
+ free(pend);
+ }
+}
+
+void _xcb_in_wake_up_next_reader(xcb_connection_t *c)
+{
+ int pthreadret;
+ if(c->in.readers)
+ pthreadret = pthread_cond_signal(c->in.readers->data);
+ else
+ pthreadret = pthread_cond_signal(&c->in.event_cond);
+ assert(pthreadret == 0);
+}
+
+int _xcb_in_expect_reply(xcb_connection_t *c, uint64_t request, enum workarounds workaround, int flags)
+{
+ pending_reply *pend = malloc(sizeof(pending_reply));
+ assert(workaround != WORKAROUND_NONE || flags != 0);
+ if(!pend)
+ {
+ _xcb_conn_shutdown(c);
+ return 0;
+ }
+ pend->first_request = pend->last_request = request;
+ pend->workaround = workaround;
+ pend->flags = flags;
+ pend->next = 0;
+ *c->in.pending_replies_tail = pend;
+ c->in.pending_replies_tail = &pend->next;
+ return 1;
+}
+
+void _xcb_in_replies_done(xcb_connection_t *c)
+{
+ struct pending_reply *pend;
+ if (c->in.pending_replies_tail != &c->in.pending_replies)
+ {
+ pend = container_of(c->in.pending_replies_tail, struct pending_reply, next);
+ if(pend->workaround == WORKAROUND_EXTERNAL_SOCKET_OWNER)
+ {
+ pend->last_request = c->out.request;
+ pend->workaround = WORKAROUND_NONE;
+ }
+ }
+}
+
+int _xcb_in_read(xcb_connection_t *c)
+{
+ int n = recv(c->fd, c->in.queue + c->in.queue_len, sizeof(c->in.queue) - c->in.queue_len,MSG_WAITALL);
+ if(n > 0)
+ c->in.queue_len += n;
+ while(read_packet(c))
+ /* empty */;
+#ifndef _WIN32
+ if((n > 0) || (n < 0 && errno == EAGAIN))
+#else
+ if((n > 0) || (n < 0 && WSAGetLastError() == WSAEWOULDBLOCK))
+#endif /* !_WIN32 */
+ return 1;
+ _xcb_conn_shutdown(c);
+ return 0;
+}
+
+int _xcb_in_read_block(xcb_connection_t *c, void *buf, int len)
+{
+ int done = c->in.queue_len;
+ if(len < done)
+ done = len;
+
+ memcpy(buf, c->in.queue, done);
+ c->in.queue_len -= done;
+ memmove(c->in.queue, c->in.queue + done, c->in.queue_len);
+
+ if(len > done)
+ {
+ int ret = read_block(c->fd, (char *) buf + done, len - done);
+ if(ret <= 0)
+ {
+ _xcb_conn_shutdown(c);
+ return ret;
+ }
+ }
+
+ return len;
+}
diff --git a/libxcb/src/xcb_util.c b/libxcb/src/xcb_util.c
index 647096ce6..4fc8797c5 100644
--- a/libxcb/src/xcb_util.c
+++ b/libxcb/src/xcb_util.c
@@ -1,486 +1,486 @@
-/* Copyright (C) 2001-2004 Bart Massey and Jamey Sharp.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- * Except as contained in this notice, the names of the authors or their
- * institutions shall not be used in advertising or otherwise to promote the
- * sale, use or other dealings in this Software without prior written
- * authorization from the authors.
- */
-
-/* Utility functions implementable using only public APIs. */
-
-#include <assert.h>
-#include <sys/types.h>
-#include <limits.h>
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stddef.h>
-#include <unistd.h>
-#include <string.h>
-#ifndef _MSC_VER
-#include <arpa/inet.h>
-#endif
-
-#ifdef _WIN32
-#include "xcb_windefs.h"
-#else
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <netinet/in.h>
-#include <netinet/tcp.h>
-#include <fcntl.h>
-#include <netdb.h>
-#endif /* _WIN32 */
-
-#include "xcb.h"
-#include "xcbext.h"
-#include "xcbint.h"
-
-/* must be after "xcbint.h" to get autoconf #defines */
-#if defined(HAVE_TSOL_LABEL_H) && defined(HAVE_IS_SYSTEM_LABELED)
-# include <tsol/label.h>
-# include <sys/stat.h>
-#endif
-
-#ifdef _MSC_VER
-#ifdef close
-#undef close
-#endif
-#define close(fd) closesocket(fd)
-#endif
-
-int xcb_popcount(uint32_t mask)
-{
- uint32_t y;
- y = (mask >> 1) & 033333333333;
- y = mask - y - ((y >> 1) & 033333333333);
- return ((y + (y >> 3)) & 030707070707) % 077;
-}
-
-int xcb_sumof(uint8_t *list, int len)
-{
- int i, s = 0;
- for(i=0; i<len; i++) {
- s += *list;
- list++;
- }
- return s;
-}
-
-static int _xcb_parse_display(const char *name, char **host, char **protocol,
- int *displayp, int *screenp)
-{
- int len, display, screen;
- char *slash, *colon, *dot, *end;
-
- if(!name || !*name)
- name = getenv("DISPLAY");
- if(!name)
- return 0;
-
-#ifdef HAVE_LAUNCHD
- if(strncmp(name, "/tmp/launch", 11) == 0)
- slash = NULL;
- else
-#endif
- slash = strrchr(name, '/');
-
- if (slash) {
- len = slash - name;
- if (protocol) {
- *protocol = malloc(len + 1);
- if(!*protocol)
- return 0;
- memcpy(*protocol, name, len);
- (*protocol)[len] = '\0';
- }
- name = slash + 1;
- } else
- if (protocol)
- *protocol = NULL;
-
- colon = strrchr(name, ':');
- if(!colon)
- goto error_out;
- len = colon - name;
- ++colon;
- display = strtoul(colon, &dot, 10);
- if(dot == colon)
- goto error_out;
- if(*dot == '\0')
- screen = 0;
- else
- {
- if(*dot != '.')
- goto error_out;
- ++dot;
- screen = strtoul(dot, &end, 10);
- if(end == dot || *end != '\0')
- goto error_out;
- }
- /* At this point, the display string is fully parsed and valid, but
- * the caller's memory is untouched. */
-
- *host = malloc(len + 1);
- if(!*host)
- goto error_out;
- memcpy(*host, name, len);
- (*host)[len] = '\0';
- *displayp = display;
- if(screenp)
- *screenp = screen;
- return 1;
-
-error_out:
- if (protocol) {
- free(*protocol);
- *protocol = NULL;
- }
-
- return 0;
-}
-
-int xcb_parse_display(const char *name, char **host, int *displayp,
- int *screenp)
-{
- return _xcb_parse_display(name, host, NULL, displayp, screenp);
-}
-
-static int _xcb_open_tcp(const char *host, char *protocol, const unsigned short port);
-#ifndef _WIN32
-static int _xcb_open_unix(char *protocol, const char *file);
-#endif /* !WIN32 */
-#ifdef HAVE_ABSTRACT_SOCKETS
-static int _xcb_open_abstract(char *protocol, const char *file, size_t filelen);
-#endif
-
-static int _xcb_open(const char *host, char *protocol, const int display)
-{
- int fd;
- static const char unix_base[] = "/tmp/.X11-unix/X";
- const char *base = unix_base;
- size_t filelen;
- char *file = NULL;
- int actual_filelen;
-
-#ifdef HAVE_LAUNCHD
- if(strncmp(host, "/tmp/launch", 11) == 0) {
- base = host;
- host = "";
- protocol = NULL;
- }
-#endif
-
- /* If protocol or host is "unix", fall through to Unix socket code below */
- if ((!protocol || (strcmp("unix",protocol) != 0)) &&
- (*host != '\0') && (strcmp("unix",host) != 0))
- {
- /* display specifies TCP */
- unsigned short port = X_TCP_PORT + display;
- return _xcb_open_tcp(host, protocol, port);
- }
-
-#ifndef _WIN32
-#if defined(HAVE_TSOL_LABEL_H) && defined(HAVE_IS_SYSTEM_LABELED)
- /* Check special path for Unix sockets under Solaris Trusted Extensions */
- if (is_system_labeled())
- {
- struct stat sbuf;
- const char *tsol_base = "/var/tsol/doors/.X11-unix/X";
- char tsol_socket[PATH_MAX];
-
- snprintf(tsol_socket, sizeof(tsol_socket), "%s%d", tsol_base, display);
-
- if (stat(tsol_socket, &sbuf) == 0)
- base = tsol_base;
- }
-#endif
-
- filelen = strlen(base) + 1 + sizeof(display) * 3 + 1;
- file = malloc(filelen);
- if(file == NULL)
- return -1;
-
- /* display specifies Unix socket */
-#ifdef HAVE_LAUNCHD
- if(strncmp(base, "/tmp/launch", 11) == 0)
- actual_filelen = snprintf(file, filelen, "%s:%d", base, display);
- else
-#endif
- actual_filelen = snprintf(file, filelen, "%s%d", base, display);
- if(actual_filelen < 0)
- {
- free(file);
- return -1;
- }
- /* snprintf may truncate the file */
- filelen = MIN(actual_filelen, filelen - 1);
-#ifdef HAVE_ABSTRACT_SOCKETS
- fd = _xcb_open_abstract(protocol, file, filelen);
- if (fd >= 0 || (errno != ENOENT && errno != ECONNREFUSED))
- {
- free(file);
- return fd;
- }
-
-#endif
- fd = _xcb_open_unix(protocol, file);
- free(file);
-
- return fd;
-#endif /* !_WIN32 */
- return -1; /* if control reaches here then something has gone wrong */
-}
-
-static int _xcb_socket(int family, int type, int proto)
-{
- int fd;
-
-#ifdef SOCK_CLOEXEC
- fd = socket(family, type | SOCK_CLOEXEC, proto);
- if (fd == -1 && errno == EINVAL)
-#endif
- {
- fd = socket(family, type, proto);
-#ifndef _WIN32
- if (fd >= 0)
- fcntl(fd, F_SETFD, FD_CLOEXEC);
-#endif
- }
- return fd;
-}
-
-
-static int _xcb_do_connect(int fd, const struct sockaddr* addr, int addrlen) {
- char on = 1;
-
- if(fd < 0)
- return -1;
-
- setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &on, sizeof(on));
- setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &on, sizeof(on));
-
- return connect(fd, addr, addrlen);
-}
-
-#ifdef WIN32
-int InitWSA(void)
-{
- static WSADATA wsadata;
-
- if (!wsadata.wVersion)
- {
- ptw32_processInitialize();
- if (WSAStartup(0x0202, &wsadata))
- return -1;
- }
- return 0;
-}
-#else
-#define InitWSA()
-#endif
-
-static int _xcb_open_tcp(const char *host, char *protocol, const unsigned short port)
-{
- int fd = -1;
-#if HAVE_GETADDRINFO
- struct addrinfo hints;
- char service[6]; /* "65535" with the trailing '\0' */
- struct addrinfo *results, *addr;
- char *bracket;
-#endif
-
- if (protocol && strcmp("tcp",protocol) && strcmp("inet",protocol)
-#ifdef AF_INET6
- && strcmp("inet6",protocol)
-#endif
- )
- return -1;
-
- if (*host == '\0')
- host = "localhost";
-
-#if HAVE_GETADDRINFO
- memset(&hints, 0, sizeof(hints));
-#ifdef AI_NUMERICSERV
- hints.ai_flags |= AI_NUMERICSERV;
-#endif
- hints.ai_family = AF_UNSPEC;
- hints.ai_socktype = SOCK_STREAM;
-
-#ifdef AF_INET6
- /* Allow IPv6 addresses enclosed in brackets. */
- if(host[0] == '[' && (bracket = strrchr(host, ']')) && bracket[1] == '\0')
- {
- *bracket = '\0';
- ++host;
- hints.ai_flags |= AI_NUMERICHOST;
- hints.ai_family = AF_INET6;
- }
-#endif
-
-#ifdef WIN32
- if (InitWSA()<0)
- return -1;
-#endif
-
- snprintf(service, sizeof(service), "%hu", port);
- if(getaddrinfo(host, service, &hints, &results))
- /* FIXME: use gai_strerror, and fill in error connection */
- return -1;
-
- for(addr = results; addr; addr = addr->ai_next)
- {
- fd = _xcb_socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol);
- if (_xcb_do_connect(fd, addr->ai_addr, addr->ai_addrlen) >= 0)
- break;
- close(fd);
- fd = -1;
- }
- freeaddrinfo(results);
- return fd;
-#else
- {
- struct hostent* _h;
- struct sockaddr_in _s;
- struct in_addr ** _c;
-
- if((_h = gethostbyname(host)) == NULL)
- return -1;
-
- _c = (struct in_addr**)_h->h_addr_list;
- fd = -1;
-
- while(*_c) {
- _s.sin_family = AF_INET;
- _s.sin_port = htons(port);
- _s.sin_addr = *(*_c);
-
- fd = _xcb_socket(_s.sin_family, SOCK_STREAM, 0);
- if(_xcb_do_connect(fd, (struct sockaddr*)&_s, sizeof(_s)) >= 0)
- break;
-
- close(fd);
- fd = -1;
- ++_c;
- }
-
- return fd;
- }
-#endif
-}
-
-#ifndef _WIN32
-static int _xcb_open_unix(char *protocol, const char *file)
-{
- int fd;
- struct sockaddr_un addr;
-
- if (protocol && strcmp("unix",protocol))
- return -1;
-
- strcpy(addr.sun_path, file);
- addr.sun_family = AF_UNIX;
-#ifdef HAVE_SOCKADDR_SUN_LEN
- addr.sun_len = SUN_LEN(&addr);
-#endif
- fd = _xcb_socket(AF_UNIX, SOCK_STREAM, 0);
- if(fd == -1)
- return -1;
- if(connect(fd, (struct sockaddr *) &addr, sizeof(addr)) == -1) {
- close(fd);
- return -1;
- }
- return fd;
-}
-#endif /* !_WIN32 */
-
-#ifdef HAVE_ABSTRACT_SOCKETS
-static int _xcb_open_abstract(char *protocol, const char *file, size_t filelen)
-{
- int fd;
- struct sockaddr_un addr = {0};
- socklen_t namelen;
-
- if (protocol && strcmp("unix",protocol))
- return -1;
-
- strcpy(addr.sun_path + 1, file);
- addr.sun_family = AF_UNIX;
- namelen = offsetof(struct sockaddr_un, sun_path) + 1 + filelen;
-#ifdef HAVE_SOCKADDR_SUN_LEN
- addr.sun_len = 1 + filelen;
-#endif
- fd = _xcb_socket(AF_UNIX, SOCK_STREAM, 0);
- if (fd == -1)
- return -1;
- if (connect(fd, (struct sockaddr *) &addr, namelen) == -1) {
- close(fd);
- return -1;
- }
- return fd;
-}
-#endif
-
-xcb_connection_t *xcb_connect(const char *displayname, int *screenp)
-{
- return xcb_connect_to_display_with_auth_info(displayname, NULL, screenp);
-}
-
-xcb_connection_t *xcb_connect_to_display_with_auth_info(const char *displayname, xcb_auth_info_t *auth, int *screenp)
-{
- int fd, display = 0;
- char *host = NULL;
- char *protocol = NULL;
- xcb_auth_info_t ourauth;
- xcb_connection_t *c;
-
- int parsed = _xcb_parse_display(displayname, &host, &protocol, &display, screenp);
-
- if(!parsed) {
- c = (xcb_connection_t *) &error_connection;
- goto out;
- } else
- fd = _xcb_open(host, protocol, display);
-
- if(fd == -1) {
- c = (xcb_connection_t *) &error_connection;
- goto out;
- }
-
- if(auth) {
- c = xcb_connect_to_fd(fd, auth);
- goto out;
- }
-
- if(_xcb_get_auth_info(fd, &ourauth, display))
- {
- c = xcb_connect_to_fd(fd, &ourauth);
- free(ourauth.name);
- free(ourauth.data);
- }
- else
- c = xcb_connect_to_fd(fd, 0);
-
-out:
- free(host);
- free(protocol);
- return c;
-}
+/* Copyright (C) 2001-2004 Bart Massey and Jamey Sharp.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the names of the authors or their
+ * institutions shall not be used in advertising or otherwise to promote the
+ * sale, use or other dealings in this Software without prior written
+ * authorization from the authors.
+ */
+
+/* Utility functions implementable using only public APIs. */
+
+#include <assert.h>
+#include <sys/types.h>
+#include <limits.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <string.h>
+#ifndef _MSC_VER
+#include <arpa/inet.h>
+#endif
+
+#ifdef _WIN32
+#include "xcb_windefs.h"
+#else
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <fcntl.h>
+#include <netdb.h>
+#endif /* _WIN32 */
+
+#include "xcb.h"
+#include "xcbext.h"
+#include "xcbint.h"
+
+/* must be after "xcbint.h" to get autoconf #defines */
+#if defined(HAVE_TSOL_LABEL_H) && defined(HAVE_IS_SYSTEM_LABELED)
+# include <tsol/label.h>
+# include <sys/stat.h>
+#endif
+
+#ifdef _MSC_VER
+#ifdef close
+#undef close
+#endif
+#define close(fd) closesocket(fd)
+#endif
+
+int xcb_popcount(uint32_t mask)
+{
+ uint32_t y;
+ y = (mask >> 1) & 033333333333;
+ y = mask - y - ((y >> 1) & 033333333333);
+ return ((y + (y >> 3)) & 030707070707) % 077;
+}
+
+int xcb_sumof(uint8_t *list, int len)
+{
+ int i, s = 0;
+ for(i=0; i<len; i++) {
+ s += *list;
+ list++;
+ }
+ return s;
+}
+
+static int _xcb_parse_display(const char *name, char **host, char **protocol,
+ int *displayp, int *screenp)
+{
+ int len, display, screen;
+ char *slash, *colon, *dot, *end;
+
+ if(!name || !*name)
+ name = getenv("DISPLAY");
+ if(!name)
+ return 0;
+
+#ifdef HAVE_LAUNCHD
+ if(strncmp(name, "/tmp/launch", 11) == 0)
+ slash = NULL;
+ else
+#endif
+ slash = strrchr(name, '/');
+
+ if (slash) {
+ len = slash - name;
+ if (protocol) {
+ *protocol = malloc(len + 1);
+ if(!*protocol)
+ return 0;
+ memcpy(*protocol, name, len);
+ (*protocol)[len] = '\0';
+ }
+ name = slash + 1;
+ } else
+ if (protocol)
+ *protocol = NULL;
+
+ colon = strrchr(name, ':');
+ if(!colon)
+ goto error_out;
+ len = colon - name;
+ ++colon;
+ display = strtoul(colon, &dot, 10);
+ if(dot == colon)
+ goto error_out;
+ if(*dot == '\0')
+ screen = 0;
+ else
+ {
+ if(*dot != '.')
+ goto error_out;
+ ++dot;
+ screen = strtoul(dot, &end, 10);
+ if(end == dot || *end != '\0')
+ goto error_out;
+ }
+ /* At this point, the display string is fully parsed and valid, but
+ * the caller's memory is untouched. */
+
+ *host = malloc(len + 1);
+ if(!*host)
+ goto error_out;
+ memcpy(*host, name, len);
+ (*host)[len] = '\0';
+ *displayp = display;
+ if(screenp)
+ *screenp = screen;
+ return 1;
+
+error_out:
+ if (protocol) {
+ free(*protocol);
+ *protocol = NULL;
+ }
+
+ return 0;
+}
+
+int xcb_parse_display(const char *name, char **host, int *displayp,
+ int *screenp)
+{
+ return _xcb_parse_display(name, host, NULL, displayp, screenp);
+}
+
+static int _xcb_open_tcp(const char *host, char *protocol, const unsigned short port);
+#ifndef _WIN32
+static int _xcb_open_unix(char *protocol, const char *file);
+#endif /* !WIN32 */
+#ifdef HAVE_ABSTRACT_SOCKETS
+static int _xcb_open_abstract(char *protocol, const char *file, size_t filelen);
+#endif
+
+static int _xcb_open(const char *host, char *protocol, const int display)
+{
+ int fd;
+ static const char unix_base[] = "/tmp/.X11-unix/X";
+ const char *base = unix_base;
+ size_t filelen;
+ char *file = NULL;
+ int actual_filelen;
+
+#ifdef HAVE_LAUNCHD
+ if(strncmp(host, "/tmp/launch", 11) == 0) {
+ base = host;
+ host = "";
+ protocol = NULL;
+ }
+#endif
+
+ /* If protocol or host is "unix", fall through to Unix socket code below */
+ if ((!protocol || (strcmp("unix",protocol) != 0)) &&
+ (*host != '\0') && (strcmp("unix",host) != 0))
+ {
+ /* display specifies TCP */
+ unsigned short port = X_TCP_PORT + display;
+ return _xcb_open_tcp(host, protocol, port);
+ }
+
+#ifndef _WIN32
+#if defined(HAVE_TSOL_LABEL_H) && defined(HAVE_IS_SYSTEM_LABELED)
+ /* Check special path for Unix sockets under Solaris Trusted Extensions */
+ if (is_system_labeled())
+ {
+ struct stat sbuf;
+ const char *tsol_base = "/var/tsol/doors/.X11-unix/X";
+ char tsol_socket[PATH_MAX];
+
+ snprintf(tsol_socket, sizeof(tsol_socket), "%s%d", tsol_base, display);
+
+ if (stat(tsol_socket, &sbuf) == 0)
+ base = tsol_base;
+ }
+#endif
+
+ filelen = strlen(base) + 1 + sizeof(display) * 3 + 1;
+ file = malloc(filelen);
+ if(file == NULL)
+ return -1;
+
+ /* display specifies Unix socket */
+#ifdef HAVE_LAUNCHD
+ if(strncmp(base, "/tmp/launch", 11) == 0)
+ actual_filelen = snprintf(file, filelen, "%s:%d", base, display);
+ else
+#endif
+ actual_filelen = snprintf(file, filelen, "%s%d", base, display);
+ if(actual_filelen < 0)
+ {
+ free(file);
+ return -1;
+ }
+ /* snprintf may truncate the file */
+ filelen = MIN(actual_filelen, filelen - 1);
+#ifdef HAVE_ABSTRACT_SOCKETS
+ fd = _xcb_open_abstract(protocol, file, filelen);
+ if (fd >= 0 || (errno != ENOENT && errno != ECONNREFUSED))
+ {
+ free(file);
+ return fd;
+ }
+
+#endif
+ fd = _xcb_open_unix(protocol, file);
+ free(file);
+
+ return fd;
+#endif /* !_WIN32 */
+ return -1; /* if control reaches here then something has gone wrong */
+}
+
+static int _xcb_socket(int family, int type, int proto)
+{
+ int fd;
+
+#ifdef SOCK_CLOEXEC
+ fd = socket(family, type | SOCK_CLOEXEC, proto);
+ if (fd == -1 && errno == EINVAL)
+#endif
+ {
+ fd = socket(family, type, proto);
+#ifndef _WIN32
+ if (fd >= 0)
+ fcntl(fd, F_SETFD, FD_CLOEXEC);
+#endif
+ }
+ return fd;
+}
+
+
+static int _xcb_do_connect(int fd, const struct sockaddr* addr, int addrlen) {
+ char on = 1;
+
+ if(fd < 0)
+ return -1;
+
+ setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &on, sizeof(on));
+ setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &on, sizeof(on));
+
+ return connect(fd, addr, addrlen);
+}
+
+#ifdef WIN32
+int InitWSA(void)
+{
+ static WSADATA wsadata;
+
+ if (!wsadata.wVersion)
+ {
+ ptw32_processInitialize();
+ if (WSAStartup(0x0202, &wsadata))
+ return -1;
+ }
+ return 0;
+}
+#else
+#define InitWSA()
+#endif
+
+static int _xcb_open_tcp(const char *host, char *protocol, const unsigned short port)
+{
+ int fd = -1;
+#if HAVE_GETADDRINFO
+ struct addrinfo hints;
+ char service[6]; /* "65535" with the trailing '\0' */
+ struct addrinfo *results, *addr;
+ char *bracket;
+#endif
+
+ if (protocol && strcmp("tcp",protocol) && strcmp("inet",protocol)
+#ifdef AF_INET6
+ && strcmp("inet6",protocol)
+#endif
+ )
+ return -1;
+
+ if (*host == '\0')
+ host = "localhost";
+
+#if HAVE_GETADDRINFO
+ memset(&hints, 0, sizeof(hints));
+#ifdef AI_NUMERICSERV
+ hints.ai_flags |= AI_NUMERICSERV;
+#endif
+ hints.ai_family = AF_UNSPEC;
+ hints.ai_socktype = SOCK_STREAM;
+
+#ifdef AF_INET6
+ /* Allow IPv6 addresses enclosed in brackets. */
+ if(host[0] == '[' && (bracket = strrchr(host, ']')) && bracket[1] == '\0')
+ {
+ *bracket = '\0';
+ ++host;
+ hints.ai_flags |= AI_NUMERICHOST;
+ hints.ai_family = AF_INET6;
+ }
+#endif
+
+#ifdef WIN32
+ if (InitWSA()<0)
+ return -1;
+#endif
+
+ snprintf(service, sizeof(service), "%hu", port);
+ if(getaddrinfo(host, service, &hints, &results))
+ /* FIXME: use gai_strerror, and fill in error connection */
+ return -1;
+
+ for(addr = results; addr; addr = addr->ai_next)
+ {
+ fd = _xcb_socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol);
+ if (_xcb_do_connect(fd, addr->ai_addr, addr->ai_addrlen) >= 0)
+ break;
+ close(fd);
+ fd = -1;
+ }
+ freeaddrinfo(results);
+ return fd;
+#else
+ {
+ struct hostent* _h;
+ struct sockaddr_in _s;
+ struct in_addr ** _c;
+
+ if((_h = gethostbyname(host)) == NULL)
+ return -1;
+
+ _c = (struct in_addr**)_h->h_addr_list;
+ fd = -1;
+
+ while(*_c) {
+ _s.sin_family = AF_INET;
+ _s.sin_port = htons(port);
+ _s.sin_addr = *(*_c);
+
+ fd = _xcb_socket(_s.sin_family, SOCK_STREAM, 0);
+ if(_xcb_do_connect(fd, (struct sockaddr*)&_s, sizeof(_s)) >= 0)
+ break;
+
+ close(fd);
+ fd = -1;
+ ++_c;
+ }
+
+ return fd;
+ }
+#endif
+}
+
+#ifndef _WIN32
+static int _xcb_open_unix(char *protocol, const char *file)
+{
+ int fd;
+ struct sockaddr_un addr;
+
+ if (protocol && strcmp("unix",protocol))
+ return -1;
+
+ strcpy(addr.sun_path, file);
+ addr.sun_family = AF_UNIX;
+#ifdef HAVE_SOCKADDR_SUN_LEN
+ addr.sun_len = SUN_LEN(&addr);
+#endif
+ fd = _xcb_socket(AF_UNIX, SOCK_STREAM, 0);
+ if(fd == -1)
+ return -1;
+ if(connect(fd, (struct sockaddr *) &addr, sizeof(addr)) == -1) {
+ close(fd);
+ return -1;
+ }
+ return fd;
+}
+#endif /* !_WIN32 */
+
+#ifdef HAVE_ABSTRACT_SOCKETS
+static int _xcb_open_abstract(char *protocol, const char *file, size_t filelen)
+{
+ int fd;
+ struct sockaddr_un addr = {0};
+ socklen_t namelen;
+
+ if (protocol && strcmp("unix",protocol))
+ return -1;
+
+ strcpy(addr.sun_path + 1, file);
+ addr.sun_family = AF_UNIX;
+ namelen = offsetof(struct sockaddr_un, sun_path) + 1 + filelen;
+#ifdef HAVE_SOCKADDR_SUN_LEN
+ addr.sun_len = 1 + filelen;
+#endif
+ fd = _xcb_socket(AF_UNIX, SOCK_STREAM, 0);
+ if (fd == -1)
+ return -1;
+ if (connect(fd, (struct sockaddr *) &addr, namelen) == -1) {
+ close(fd);
+ return -1;
+ }
+ return fd;
+}
+#endif
+
+xcb_connection_t *xcb_connect(const char *displayname, int *screenp)
+{
+ return xcb_connect_to_display_with_auth_info(displayname, NULL, screenp);
+}
+
+xcb_connection_t *xcb_connect_to_display_with_auth_info(const char *displayname, xcb_auth_info_t *auth, int *screenp)
+{
+ int fd, display = 0;
+ char *host = NULL;
+ char *protocol = NULL;
+ xcb_auth_info_t ourauth;
+ xcb_connection_t *c;
+
+ int parsed = _xcb_parse_display(displayname, &host, &protocol, &display, screenp);
+
+ if(!parsed) {
+ c = (xcb_connection_t *) &error_connection;
+ goto out;
+ } else
+ fd = _xcb_open(host, protocol, display);
+
+ if(fd == -1) {
+ c = (xcb_connection_t *) &error_connection;
+ goto out;
+ }
+
+ if(auth) {
+ c = xcb_connect_to_fd(fd, auth);
+ goto out;
+ }
+
+ if(_xcb_get_auth_info(fd, &ourauth, display))
+ {
+ c = xcb_connect_to_fd(fd, &ourauth);
+ free(ourauth.name);
+ free(ourauth.data);
+ }
+ else
+ c = xcb_connect_to_fd(fd, 0);
+
+out:
+ free(host);
+ free(protocol);
+ return c;
+}
diff --git a/libxcb/src/xcbint.h b/libxcb/src/xcbint.h
index 5950823f0..096576c4a 100644
--- a/libxcb/src/xcbint.h
+++ b/libxcb/src/xcbint.h
@@ -1,208 +1,208 @@
-/*
- * Copyright (C) 2001-2004 Bart Massey and Jamey Sharp.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- * Except as contained in this notice, the names of the authors or their
- * institutions shall not be used in advertising or otherwise to promote the
- * sale, use or other dealings in this Software without prior written
- * authorization from the authors.
- */
-
-#ifndef __XCBINT_H
-#define __XCBINT_H
-
-#include "bigreq.h"
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#ifdef GCC_HAS_VISIBILITY
-#pragma GCC visibility push(hidden)
-#endif
-
-enum workarounds {
- WORKAROUND_NONE,
- WORKAROUND_GLX_GET_FB_CONFIGS_BUG,
- WORKAROUND_EXTERNAL_SOCKET_OWNER
-};
-
-enum lazy_reply_tag
-{
- LAZY_NONE = 0,
- LAZY_COOKIE,
- LAZY_FORCED
-};
-
-#define XCB_PAD(i) (-(i) & 3)
-
-#define XCB_SEQUENCE_COMPARE(a,op,b) ((int64_t) ((a) - (b)) op 0)
-
-#ifndef offsetof
-#define offsetof(type,member) ((size_t) &((type *)0)->member)
-#endif
-
-#ifndef MIN
-#define MIN(x,y) ((x) < (y) ? (x) : (y))
-#endif
-
-#define container_of(pointer,type,member) ((type *)(((char *)(pointer)) - offsetof(type, member)))
-
-/* xcb_list.c */
-
-typedef void (*xcb_list_free_func_t)(void *);
-
-typedef struct _xcb_map _xcb_map;
-
-_xcb_map *_xcb_map_new(void);
-void _xcb_map_delete(_xcb_map *q, xcb_list_free_func_t do_free);
-int _xcb_map_put(_xcb_map *q, unsigned int key, void *data);
-void *_xcb_map_remove(_xcb_map *q, unsigned int key);
-
-
-/* xcb_out.c */
-
-typedef struct _xcb_out {
- pthread_cond_t cond;
- int writing;
-
- pthread_cond_t socket_cond;
- void (*return_socket)(void *closure);
- void *socket_closure;
- int socket_moving;
-
- char queue[XCB_QUEUE_BUFFER_SIZE];
- int queue_len;
-
- uint64_t request;
- uint64_t request_written;
-
- pthread_mutex_t reqlenlock;
- enum lazy_reply_tag maximum_request_length_tag;
- union {
- xcb_big_requests_enable_cookie_t cookie;
- uint32_t value;
- } maximum_request_length;
-} _xcb_out;
-
-int _xcb_out_init(_xcb_out *out);
-void _xcb_out_destroy(_xcb_out *out);
-
-int _xcb_out_send(xcb_connection_t *c, struct iovec *vector, int count);
-void _xcb_out_send_sync(xcb_connection_t *c);
-int _xcb_out_flush_to(xcb_connection_t *c, uint64_t request);
-
-
-/* xcb_in.c */
-
-typedef struct _xcb_in {
- pthread_cond_t event_cond;
- int reading;
-
- char queue[4096];
- int queue_len;
-
- uint64_t request_expected;
- uint64_t request_read;
- uint64_t request_completed;
- struct reply_list *current_reply;
- struct reply_list **current_reply_tail;
-
- _xcb_map *replies;
- struct event_list *events;
- struct event_list **events_tail;
- struct reader_list *readers;
-
- struct pending_reply *pending_replies;
- struct pending_reply **pending_replies_tail;
-} _xcb_in;
-
-int _xcb_in_init(_xcb_in *in);
-void _xcb_in_destroy(_xcb_in *in);
-
-void _xcb_in_wake_up_next_reader(xcb_connection_t *c);
-
-int _xcb_in_expect_reply(xcb_connection_t *c, uint64_t request, enum workarounds workaround, int flags);
-void _xcb_in_replies_done(xcb_connection_t *c);
-
-int _xcb_in_read(xcb_connection_t *c);
-int _xcb_in_read_block(xcb_connection_t *c, void *buf, int nread);
-
-
-/* xcb_xid.c */
-
-typedef struct _xcb_xid {
- pthread_mutex_t lock;
- uint32_t last;
- uint32_t base;
- uint32_t max;
- uint32_t inc;
-} _xcb_xid;
-
-int _xcb_xid_init(xcb_connection_t *c);
-void _xcb_xid_destroy(xcb_connection_t *c);
-
-
-/* xcb_ext.c */
-
-typedef struct _xcb_ext {
- pthread_mutex_t lock;
- struct lazyreply *extensions;
- int extensions_size;
-} _xcb_ext;
-
-int _xcb_ext_init(xcb_connection_t *c);
-void _xcb_ext_destroy(xcb_connection_t *c);
-
-
-/* xcb_conn.c */
-
-extern const int error_connection;
-
-struct xcb_connection_t {
- int has_error;
-
- /* constant data */
- xcb_setup_t *setup;
- int fd;
-
- /* I/O data */
- pthread_mutex_t iolock;
- _xcb_in in;
- _xcb_out out;
-
- /* misc data */
- _xcb_ext ext;
- _xcb_xid xid;
-};
-
-void _xcb_conn_shutdown(xcb_connection_t *c);
-int _xcb_conn_wait(xcb_connection_t *c, pthread_cond_t *cond, struct iovec **vector, int *count);
-
-
-/* xcb_auth.c */
-
-int _xcb_get_auth_info(int fd, xcb_auth_info_t *info, int display);
-
-#ifdef GCC_HAS_VISIBILITY
-#pragma GCC visibility pop
-#endif
-
-#endif
+/*
+ * Copyright (C) 2001-2004 Bart Massey and Jamey Sharp.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the names of the authors or their
+ * institutions shall not be used in advertising or otherwise to promote the
+ * sale, use or other dealings in this Software without prior written
+ * authorization from the authors.
+ */
+
+#ifndef __XCBINT_H
+#define __XCBINT_H
+
+#include "bigreq.h"
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#ifdef GCC_HAS_VISIBILITY
+#pragma GCC visibility push(hidden)
+#endif
+
+enum workarounds {
+ WORKAROUND_NONE,
+ WORKAROUND_GLX_GET_FB_CONFIGS_BUG,
+ WORKAROUND_EXTERNAL_SOCKET_OWNER
+};
+
+enum lazy_reply_tag
+{
+ LAZY_NONE = 0,
+ LAZY_COOKIE,
+ LAZY_FORCED
+};
+
+#define XCB_PAD(i) (-(i) & 3)
+
+#define XCB_SEQUENCE_COMPARE(a,op,b) ((int64_t) ((a) - (b)) op 0)
+
+#ifndef offsetof
+#define offsetof(type,member) ((size_t) &((type *)0)->member)
+#endif
+
+#ifndef MIN
+#define MIN(x,y) ((x) < (y) ? (x) : (y))
+#endif
+
+#define container_of(pointer,type,member) ((type *)(((char *)(pointer)) - offsetof(type, member)))
+
+/* xcb_list.c */
+
+typedef void (*xcb_list_free_func_t)(void *);
+
+typedef struct _xcb_map _xcb_map;
+
+_xcb_map *_xcb_map_new(void);
+void _xcb_map_delete(_xcb_map *q, xcb_list_free_func_t do_free);
+int _xcb_map_put(_xcb_map *q, unsigned int key, void *data);
+void *_xcb_map_remove(_xcb_map *q, unsigned int key);
+
+
+/* xcb_out.c */
+
+typedef struct _xcb_out {
+ pthread_cond_t cond;
+ int writing;
+
+ pthread_cond_t socket_cond;
+ void (*return_socket)(void *closure);
+ void *socket_closure;
+ int socket_moving;
+
+ char queue[XCB_QUEUE_BUFFER_SIZE];
+ int queue_len;
+
+ uint64_t request;
+ uint64_t request_written;
+
+ pthread_mutex_t reqlenlock;
+ enum lazy_reply_tag maximum_request_length_tag;
+ union {
+ xcb_big_requests_enable_cookie_t cookie;
+ uint32_t value;
+ } maximum_request_length;
+} _xcb_out;
+
+int _xcb_out_init(_xcb_out *out);
+void _xcb_out_destroy(_xcb_out *out);
+
+int _xcb_out_send(xcb_connection_t *c, struct iovec *vector, int count);
+void _xcb_out_send_sync(xcb_connection_t *c);
+int _xcb_out_flush_to(xcb_connection_t *c, uint64_t request);
+
+
+/* xcb_in.c */
+
+typedef struct _xcb_in {
+ pthread_cond_t event_cond;
+ int reading;
+
+ char queue[4096];
+ int queue_len;
+
+ uint64_t request_expected;
+ uint64_t request_read;
+ uint64_t request_completed;
+ struct reply_list *current_reply;
+ struct reply_list **current_reply_tail;
+
+ _xcb_map *replies;
+ struct event_list *events;
+ struct event_list **events_tail;
+ struct reader_list *readers;
+
+ struct pending_reply *pending_replies;
+ struct pending_reply **pending_replies_tail;
+} _xcb_in;
+
+int _xcb_in_init(_xcb_in *in);
+void _xcb_in_destroy(_xcb_in *in);
+
+void _xcb_in_wake_up_next_reader(xcb_connection_t *c);
+
+int _xcb_in_expect_reply(xcb_connection_t *c, uint64_t request, enum workarounds workaround, int flags);
+void _xcb_in_replies_done(xcb_connection_t *c);
+
+int _xcb_in_read(xcb_connection_t *c);
+int _xcb_in_read_block(xcb_connection_t *c, void *buf, int nread);
+
+
+/* xcb_xid.c */
+
+typedef struct _xcb_xid {
+ pthread_mutex_t lock;
+ uint32_t last;
+ uint32_t base;
+ uint32_t max;
+ uint32_t inc;
+} _xcb_xid;
+
+int _xcb_xid_init(xcb_connection_t *c);
+void _xcb_xid_destroy(xcb_connection_t *c);
+
+
+/* xcb_ext.c */
+
+typedef struct _xcb_ext {
+ pthread_mutex_t lock;
+ struct lazyreply *extensions;
+ int extensions_size;
+} _xcb_ext;
+
+int _xcb_ext_init(xcb_connection_t *c);
+void _xcb_ext_destroy(xcb_connection_t *c);
+
+
+/* xcb_conn.c */
+
+extern const int error_connection;
+
+struct xcb_connection_t {
+ int has_error;
+
+ /* constant data */
+ xcb_setup_t *setup;
+ int fd;
+
+ /* I/O data */
+ pthread_mutex_t iolock;
+ _xcb_in in;
+ _xcb_out out;
+
+ /* misc data */
+ _xcb_ext ext;
+ _xcb_xid xid;
+};
+
+void _xcb_conn_shutdown(xcb_connection_t *c);
+int _xcb_conn_wait(xcb_connection_t *c, pthread_cond_t *cond, struct iovec **vector, int *count);
+
+
+/* xcb_auth.c */
+
+int _xcb_get_auth_info(int fd, xcb_auth_info_t *info, int display);
+
+#ifdef GCC_HAS_VISIBILITY
+#pragma GCC visibility pop
+#endif
+
+#endif
diff --git a/libxcb/xcb-proto/src/sync.xml b/libxcb/xcb-proto/src/sync.xml
index f690cca04..516d149ab 100644
--- a/libxcb/xcb-proto/src/sync.xml
+++ b/libxcb/xcb-proto/src/sync.xml
@@ -1,229 +1,229 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-Copyright (C) 2004 Mikko Torni and Josh Triplett.
-All Rights Reserved. See the file COPYING in this directory
-for licensing information.
--->
-<xcb header="sync" extension-xname="SYNC" extension-name="Sync"
- major-version="3" minor-version="1">
- <import>xproto</import>
-
- <xidtype name="ALARM" />
-
- <enum name="ALARMSTATE">
- <item name="Active" />
- <item name="Inactive" />
- <item name="Destroyed" />
- </enum>
-
- <xidtype name="COUNTER" />
-
- <xidtype name="FENCE" />
-
- <enum name="TESTTYPE">
- <item name="PositiveTransition" />
- <item name="NegativeTransition" />
- <item name="PositiveComparison" />
- <item name="NegativeComparison" />
- </enum>
-
- <enum name="VALUETYPE">
- <item name="Absolute" />
- <item name="Relative" />
- </enum>
-
- <enum name="CA">
- <item name="Counter"> <bit>0</bit></item>
- <item name="ValueType"><bit>1</bit></item>
- <item name="Value"> <bit>2</bit></item>
- <item name="TestType"> <bit>3</bit></item>
- <item name="Delta"> <bit>4</bit></item>
- <item name="Events"> <bit>5</bit></item>
- </enum>
-
- <struct name="INT64">
- <field type="INT32" name="hi" />
- <field type="CARD32" name="lo" />
- </struct>
-
- <struct name="SYSTEMCOUNTER">
- <field type="COUNTER" name="counter" />
- <field type="INT64" name="resolution" />
- <field type="CARD16" name="name_len" />
- <list type="char" name="name">
- <fieldref>name_len</fieldref>
- </list>
- </struct>
-
- <struct name="TRIGGER">
- <field type="COUNTER" name="counter" />
- <field type="CARD32" name="wait_type" enum="VALUETYPE" />
- <field type="INT64" name="wait_value" />
- <field type="CARD32" name="test_type" enum="TESTTYPE" />
- </struct>
-
- <struct name="WAITCONDITION">
- <field type="TRIGGER" name="trigger" />
- <field type="INT64" name="event_threshold" />
- </struct>
-
- <error name="Counter" number="0">
- <field type="CARD32" name="bad_counter" />
- <field type="CARD16" name="minor_opcode" />
- <field type="CARD8" name="major_opcode" />
- </error>
-
- <error name="Alarm" number="1">
- <field type="CARD32" name="bad_alarm" />
- <field type="CARD16" name="minor_opcode" />
- <field type="CARD8" name="major_opcode" />
- </error>
-
- <request name="Initialize" opcode="0">
- <field type="CARD8" name="desired_major_version" />
- <field type="CARD8" name="desired_minor_version" />
- <reply>
- <pad bytes="1" />
- <field type="CARD8" name="major_version" />
- <field type="CARD8" name="minor_version" />
- <pad bytes="22" />
- </reply>
- </request>
-
- <request name="ListSystemCounters" opcode="1">
- <reply>
- <pad bytes="1" />
- <field type="CARD32" name="counters_len" />
- <pad bytes="20" />
- <list type="SYSTEMCOUNTER" name="counters">
- <fieldref>counters_len</fieldref>
- </list>
- </reply>
- </request>
-
- <request name="CreateCounter" opcode="2">
- <field type="COUNTER" name="id" />
- <field type="INT64" name="initial_value" />
- </request>
-
- <request name="DestroyCounter" opcode="6">
- <field type="COUNTER" name="counter" />
- </request>
-
- <request name="QueryCounter" opcode="5">
- <field type="COUNTER" name="counter" />
- <reply>
- <pad bytes="1" />
- <field type="INT64" name="counter_value" />
- </reply>
- </request>
-
- <request name="Await" opcode="7">
- <list type="WAITCONDITION" name="wait_list" />
- </request>
-
- <request name="ChangeCounter" opcode="4">
- <field type="COUNTER" name="counter" />
- <field type="INT64" name="amount" />
- </request>
-
- <request name="SetCounter" opcode="3">
- <field type="COUNTER" name="counter" />
- <field type="INT64" name="value" />
- </request>
-
- <request name="CreateAlarm" opcode="8">
- <field type="ALARM" name="id" />
- <valueparam value-mask-type="CARD32"
- value-mask-name="value_mask"
- value-list-name="value_list" />
- </request>
-
- <request name="ChangeAlarm" opcode="9">
- <field type="ALARM" name="id" />
- <valueparam value-mask-type="CARD32"
- value-mask-name="value_mask"
- value-list-name="value_list" />
- </request>
-
- <request name="DestroyAlarm" opcode="11">
- <field type="ALARM" name="alarm" />
- </request>
-
- <request name="QueryAlarm" opcode="10">
- <field type="ALARM" name="alarm" />
- <reply>
- <pad bytes="1" />
- <field type="TRIGGER" name="trigger" />
- <field type="INT64" name="delta" />
- <field type="BOOL" name="events" />
- <field type="CARD8" name="state" enum="ALARMSTATE" />
- <pad bytes="2" />
- </reply>
- </request>
-
- <request name="SetPriority" opcode="12">
- <field type="CARD32" name="id" />
- <field type="INT32" name="priority" />
- </request>
-
- <request name="GetPriority" opcode="13">
- <field type="CARD32" name="id" />
- <reply>
- <pad bytes="1" />
- <field type="INT32" name="priority" />
- </reply>
- </request>
-
- <request name="CreateFence" opcode="14">
- <field type="DRAWABLE" name="drawable" />
- <field type="FENCE" name="fence" />
- <field type="BOOL" name="initially_triggered" />
- </request>
-
- <request name="TriggerFence" opcode="15">
- <field type="FENCE" name="fence" />
- </request>
-
- <request name="ResetFence" opcode="16">
- <field type="FENCE" name="fence" />
- </request>
-
- <request name="DestroyFence" opcode="17">
- <field type="FENCE" name="fence" />
- </request>
-
- <request name="QueryFence" opcode="18">
- <field type="FENCE" name="fence" />
- <reply>
- <pad bytes="1" />
- <field type="BOOL" name="triggered" />
- <pad bytes="23" />
- </reply>
- </request>
-
- <request name="AwaitFence" opcode="19">
- <list type="FENCE" name="fence_list" />
- </request>
-
- <event name="CounterNotify" number="0">
- <field type="CARD8" name="kind" />
- <field type="COUNTER" name="counter" />
- <field type="INT64" name="wait_value" />
- <field type="INT64" name="counter_value" />
- <field type="TIMESTAMP" name="timestamp" />
- <field type="CARD16" name="count" />
- <field type="BOOL" name="destroyed" />
- <pad bytes="1" />
- </event>
-
- <event name="AlarmNotify" number="1">
- <field type="CARD8" name="kind" />
- <field type="ALARM" name="alarm" />
- <field type="INT64" name="counter_value" />
- <field type="INT64" name="alarm_value" />
- <field type="TIMESTAMP" name="timestamp" />
- <field type="CARD8" name="state" enum="ALARMSTATE" />
- <pad bytes="3" />
- </event>
-</xcb>
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+Copyright (C) 2004 Mikko Torni and Josh Triplett.
+All Rights Reserved. See the file COPYING in this directory
+for licensing information.
+-->
+<xcb header="sync" extension-xname="SYNC" extension-name="Sync"
+ major-version="3" minor-version="1">
+ <import>xproto</import>
+
+ <xidtype name="ALARM" />
+
+ <enum name="ALARMSTATE">
+ <item name="Active" />
+ <item name="Inactive" />
+ <item name="Destroyed" />
+ </enum>
+
+ <xidtype name="COUNTER" />
+
+ <xidtype name="FENCE" />
+
+ <enum name="TESTTYPE">
+ <item name="PositiveTransition" />
+ <item name="NegativeTransition" />
+ <item name="PositiveComparison" />
+ <item name="NegativeComparison" />
+ </enum>
+
+ <enum name="VALUETYPE">
+ <item name="Absolute" />
+ <item name="Relative" />
+ </enum>
+
+ <enum name="CA">
+ <item name="Counter"> <bit>0</bit></item>
+ <item name="ValueType"><bit>1</bit></item>
+ <item name="Value"> <bit>2</bit></item>
+ <item name="TestType"> <bit>3</bit></item>
+ <item name="Delta"> <bit>4</bit></item>
+ <item name="Events"> <bit>5</bit></item>
+ </enum>
+
+ <struct name="INT64">
+ <field type="INT32" name="hi" />
+ <field type="CARD32" name="lo" />
+ </struct>
+
+ <struct name="SYSTEMCOUNTER">
+ <field type="COUNTER" name="counter" />
+ <field type="INT64" name="resolution" />
+ <field type="CARD16" name="name_len" />
+ <list type="char" name="name">
+ <fieldref>name_len</fieldref>
+ </list>
+ </struct>
+
+ <struct name="TRIGGER">
+ <field type="COUNTER" name="counter" />
+ <field type="CARD32" name="wait_type" enum="VALUETYPE" />
+ <field type="INT64" name="wait_value" />
+ <field type="CARD32" name="test_type" enum="TESTTYPE" />
+ </struct>
+
+ <struct name="WAITCONDITION">
+ <field type="TRIGGER" name="trigger" />
+ <field type="INT64" name="event_threshold" />
+ </struct>
+
+ <error name="Counter" number="0">
+ <field type="CARD32" name="bad_counter" />
+ <field type="CARD16" name="minor_opcode" />
+ <field type="CARD8" name="major_opcode" />
+ </error>
+
+ <error name="Alarm" number="1">
+ <field type="CARD32" name="bad_alarm" />
+ <field type="CARD16" name="minor_opcode" />
+ <field type="CARD8" name="major_opcode" />
+ </error>
+
+ <request name="Initialize" opcode="0">
+ <field type="CARD8" name="desired_major_version" />
+ <field type="CARD8" name="desired_minor_version" />
+ <reply>
+ <pad bytes="1" />
+ <field type="CARD8" name="major_version" />
+ <field type="CARD8" name="minor_version" />
+ <pad bytes="22" />
+ </reply>
+ </request>
+
+ <request name="ListSystemCounters" opcode="1">
+ <reply>
+ <pad bytes="1" />
+ <field type="CARD32" name="counters_len" />
+ <pad bytes="20" />
+ <list type="SYSTEMCOUNTER" name="counters">
+ <fieldref>counters_len</fieldref>
+ </list>
+ </reply>
+ </request>
+
+ <request name="CreateCounter" opcode="2">
+ <field type="COUNTER" name="id" />
+ <field type="INT64" name="initial_value" />
+ </request>
+
+ <request name="DestroyCounter" opcode="6">
+ <field type="COUNTER" name="counter" />
+ </request>
+
+ <request name="QueryCounter" opcode="5">
+ <field type="COUNTER" name="counter" />
+ <reply>
+ <pad bytes="1" />
+ <field type="INT64" name="counter_value" />
+ </reply>
+ </request>
+
+ <request name="Await" opcode="7">
+ <list type="WAITCONDITION" name="wait_list" />
+ </request>
+
+ <request name="ChangeCounter" opcode="4">
+ <field type="COUNTER" name="counter" />
+ <field type="INT64" name="amount" />
+ </request>
+
+ <request name="SetCounter" opcode="3">
+ <field type="COUNTER" name="counter" />
+ <field type="INT64" name="value" />
+ </request>
+
+ <request name="CreateAlarm" opcode="8">
+ <field type="ALARM" name="id" />
+ <valueparam value-mask-type="CARD32"
+ value-mask-name="value_mask"
+ value-list-name="value_list" />
+ </request>
+
+ <request name="ChangeAlarm" opcode="9">
+ <field type="ALARM" name="id" />
+ <valueparam value-mask-type="CARD32"
+ value-mask-name="value_mask"
+ value-list-name="value_list" />
+ </request>
+
+ <request name="DestroyAlarm" opcode="11">
+ <field type="ALARM" name="alarm" />
+ </request>
+
+ <request name="QueryAlarm" opcode="10">
+ <field type="ALARM" name="alarm" />
+ <reply>
+ <pad bytes="1" />
+ <field type="TRIGGER" name="trigger" />
+ <field type="INT64" name="delta" />
+ <field type="BOOL" name="events" />
+ <field type="CARD8" name="state" enum="ALARMSTATE" />
+ <pad bytes="2" />
+ </reply>
+ </request>
+
+ <request name="SetPriority" opcode="12">
+ <field type="CARD32" name="id" />
+ <field type="INT32" name="priority" />
+ </request>
+
+ <request name="GetPriority" opcode="13">
+ <field type="CARD32" name="id" />
+ <reply>
+ <pad bytes="1" />
+ <field type="INT32" name="priority" />
+ </reply>
+ </request>
+
+ <request name="CreateFence" opcode="14">
+ <field type="DRAWABLE" name="drawable" />
+ <field type="FENCE" name="fence" />
+ <field type="BOOL" name="initially_triggered" />
+ </request>
+
+ <request name="TriggerFence" opcode="15">
+ <field type="FENCE" name="fence" />
+ </request>
+
+ <request name="ResetFence" opcode="16">
+ <field type="FENCE" name="fence" />
+ </request>
+
+ <request name="DestroyFence" opcode="17">
+ <field type="FENCE" name="fence" />
+ </request>
+
+ <request name="QueryFence" opcode="18">
+ <field type="FENCE" name="fence" />
+ <reply>
+ <pad bytes="1" />
+ <field type="BOOL" name="triggered" />
+ <pad bytes="23" />
+ </reply>
+ </request>
+
+ <request name="AwaitFence" opcode="19">
+ <list type="FENCE" name="fence_list" />
+ </request>
+
+ <event name="CounterNotify" number="0">
+ <field type="CARD8" name="kind" />
+ <field type="COUNTER" name="counter" />
+ <field type="INT64" name="wait_value" />
+ <field type="INT64" name="counter_value" />
+ <field type="TIMESTAMP" name="timestamp" />
+ <field type="CARD16" name="count" />
+ <field type="BOOL" name="destroyed" />
+ <pad bytes="1" />
+ </event>
+
+ <event name="AlarmNotify" number="1">
+ <field type="CARD8" name="kind" />
+ <field type="ALARM" name="alarm" />
+ <field type="INT64" name="counter_value" />
+ <field type="INT64" name="alarm_value" />
+ <field type="TIMESTAMP" name="timestamp" />
+ <field type="CARD8" name="state" enum="ALARMSTATE" />
+ <pad bytes="3" />
+ </event>
+</xcb>
diff --git a/libxcb/xcb-proto/xcbgen/matcher.py b/libxcb/xcb-proto/xcbgen/matcher.py
index c4d99fc57..6e45b236c 100644
--- a/libxcb/xcb-proto/xcbgen/matcher.py
+++ b/libxcb/xcb-proto/xcbgen/matcher.py
@@ -1,113 +1,113 @@
-'''
-XML parser. One function for each top-level element in the schema.
-
-Most functions just declare a new object and add it to the module.
-For typedefs, eventcopies, xidtypes, and other aliases though,
-we do not create a new type object, we just record the existing one under a new name.
-'''
-
-from os.path import join
-from xml.etree.cElementTree import parse
-
-from xcbgen.xtypes import *
-
-def import_(node, module, namespace):
- '''
- For imports, we load the file, create a new namespace object,
- execute recursively, then record the import (for header files, etc.)
- '''
- # To avoid circular import error
- from xcbgen import state
- new_file = join(namespace.dir, '%s.xml' % node.text)
- new_root = parse(new_file).getroot()
- new_namespace = state.Namespace(new_file)
- execute(module, new_namespace)
- if not module.has_import(node.text):
- module.add_import(node.text, new_namespace)
-
-def typedef(node, module, namespace):
- id = node.get('newname')
- name = namespace.prefix + (id,)
- type = module.get_type(node.get('oldname'))
- module.add_type(id, namespace.ns, name, type)
-
-def xidtype(node, module, namespace):
- id = node.get('name')
- name = namespace.prefix + (id,)
- type = module.get_type('CARD32')
- module.add_type(id, namespace.ns, name, type)
-
-def xidunion(node, module, namespace):
- id = node.get('name')
- name = namespace.prefix + (id,)
- type = module.get_type('CARD32')
- module.add_type(id, namespace.ns, name, type)
-
-def enum(node, module, namespace):
- id = node.get('name')
- name = namespace.prefix + (id,)
- type = Enum(name, node)
- module.add_type(id, namespace.ns, name, type)
-
-def struct(node, module, namespace):
- id = node.get('name')
- name = namespace.prefix + (id,)
- type = Struct(name, node)
- module.add_type(id, namespace.ns, name, type)
-
-def union(node, module, namespace):
- id = node.get('name')
- name = namespace.prefix + (id,)
- type = Union(name, node)
- module.add_type(id, namespace.ns, name, type)
-
-def request(node, module, namespace):
- id = node.get('name')
- name = namespace.prefix + (id,)
- type = Request(name, node)
- module.add_request(id, name, type)
-
-def event(node, module, namespace):
- id = node.get('name')
- name = namespace.prefix + (id,)
- event = Event(name, node)
- event.add_opcode(node.get('number'), name, True)
- module.add_event(id, name, event)
-
-def eventcopy(node, module, namespace):
- id = node.get('name')
- name = namespace.prefix + (id,)
- event = module.get_event(node.get('ref'))
- event.add_opcode(node.get('number'), name, False)
- module.add_event(id, name, event)
-
-def error(node, module, namespace):
- id = node.get('name')
- name = namespace.prefix + (id,)
- error = Error(name, node)
- error.add_opcode(node.get('number'), name, True)
- module.add_error(id, name, error)
-
-def errorcopy(node, module, namespace):
- id = node.get('name')
- name = namespace.prefix + (id,)
- error = module.get_error(node.get('ref'))
- error.add_opcode(node.get('number'), name, False)
- module.add_error(id, name, error)
-
-funcs = {'import' : import_,
- 'typedef' : typedef,
- 'xidtype' : xidtype,
- 'xidunion' : xidunion,
- 'enum' : enum,
- 'struct' : struct,
- 'union' : union,
- 'request' : request,
- 'event' : event,
- 'eventcopy' : eventcopy,
- 'error' : error,
- 'errorcopy' : errorcopy}
-
-def execute(module, namespace):
- for elt in list(namespace.root):
- funcs[elt.tag](elt, module, namespace)
+'''
+XML parser. One function for each top-level element in the schema.
+
+Most functions just declare a new object and add it to the module.
+For typedefs, eventcopies, xidtypes, and other aliases though,
+we do not create a new type object, we just record the existing one under a new name.
+'''
+
+from os.path import join
+from xml.etree.cElementTree import parse
+
+from xcbgen.xtypes import *
+
+def import_(node, module, namespace):
+ '''
+ For imports, we load the file, create a new namespace object,
+ execute recursively, then record the import (for header files, etc.)
+ '''
+ # To avoid circular import error
+ from xcbgen import state
+ new_file = join(namespace.dir, '%s.xml' % node.text)
+ new_root = parse(new_file).getroot()
+ new_namespace = state.Namespace(new_file)
+ execute(module, new_namespace)
+ if not module.has_import(node.text):
+ module.add_import(node.text, new_namespace)
+
+def typedef(node, module, namespace):
+ id = node.get('newname')
+ name = namespace.prefix + (id,)
+ type = module.get_type(node.get('oldname'))
+ module.add_type(id, namespace.ns, name, type)
+
+def xidtype(node, module, namespace):
+ id = node.get('name')
+ name = namespace.prefix + (id,)
+ type = module.get_type('CARD32')
+ module.add_type(id, namespace.ns, name, type)
+
+def xidunion(node, module, namespace):
+ id = node.get('name')
+ name = namespace.prefix + (id,)
+ type = module.get_type('CARD32')
+ module.add_type(id, namespace.ns, name, type)
+
+def enum(node, module, namespace):
+ id = node.get('name')
+ name = namespace.prefix + (id,)
+ type = Enum(name, node)
+ module.add_type(id, namespace.ns, name, type)
+
+def struct(node, module, namespace):
+ id = node.get('name')
+ name = namespace.prefix + (id,)
+ type = Struct(name, node)
+ module.add_type(id, namespace.ns, name, type)
+
+def union(node, module, namespace):
+ id = node.get('name')
+ name = namespace.prefix + (id,)
+ type = Union(name, node)
+ module.add_type(id, namespace.ns, name, type)
+
+def request(node, module, namespace):
+ id = node.get('name')
+ name = namespace.prefix + (id,)
+ type = Request(name, node)
+ module.add_request(id, name, type)
+
+def event(node, module, namespace):
+ id = node.get('name')
+ name = namespace.prefix + (id,)
+ event = Event(name, node)
+ event.add_opcode(node.get('number'), name, True)
+ module.add_event(id, name, event)
+
+def eventcopy(node, module, namespace):
+ id = node.get('name')
+ name = namespace.prefix + (id,)
+ event = module.get_event(node.get('ref'))
+ event.add_opcode(node.get('number'), name, False)
+ module.add_event(id, name, event)
+
+def error(node, module, namespace):
+ id = node.get('name')
+ name = namespace.prefix + (id,)
+ error = Error(name, node)
+ error.add_opcode(node.get('number'), name, True)
+ module.add_error(id, name, error)
+
+def errorcopy(node, module, namespace):
+ id = node.get('name')
+ name = namespace.prefix + (id,)
+ error = module.get_error(node.get('ref'))
+ error.add_opcode(node.get('number'), name, False)
+ module.add_error(id, name, error)
+
+funcs = {'import' : import_,
+ 'typedef' : typedef,
+ 'xidtype' : xidtype,
+ 'xidunion' : xidunion,
+ 'enum' : enum,
+ 'struct' : struct,
+ 'union' : union,
+ 'request' : request,
+ 'event' : event,
+ 'eventcopy' : eventcopy,
+ 'error' : error,
+ 'errorcopy' : errorcopy}
+
+def execute(module, namespace):
+ for elt in list(namespace.root):
+ funcs[elt.tag](elt, module, namespace)
diff --git a/libxcb/xcb-proto/xcbgen/state.py b/libxcb/xcb-proto/xcbgen/state.py
index 902a86341..ae3d2d45f 100644
--- a/libxcb/xcb-proto/xcbgen/state.py
+++ b/libxcb/xcb-proto/xcbgen/state.py
@@ -1,166 +1,166 @@
-'''
-This module contains the namespace class and the singleton module class.
-'''
-from os.path import dirname, basename
-from xml.etree.cElementTree import parse
-
-from xcbgen import matcher
-from xcbgen.error import *
-from xcbgen.xtypes import *
-
-import __main__
-
-class Namespace(object):
- '''
- Contains the naming information for an extension.
-
- Public fields:
-
- header is the header attribute ("header file" name).
- is_ext is true for extensions, false for xproto.
- major_version and minor_version are extension version info.
- ext_xname is the X extension name string.
- ext_name is the XCB extension name prefix.
- '''
- def __init__(self, filename):
- # Path info
- self.path = filename
- self.dir = dirname(filename)
- self.file = basename(filename)
-
- # Parse XML
- self.root = parse(filename).getroot()
- self.header = self.root.get('header')
- self.ns = self.header + ':'
-
- # Get root element attributes
- if self.root.get('extension-xname', False):
- self.is_ext = True
- self.major_version = self.root.get('major-version')
- self.minor_version = self.root.get('minor-version')
- self.ext_xname = self.root.get('extension-xname')
- self.ext_name = self.root.get('extension-name')
- self.prefix = ('xcb', self.ext_name)
- else:
- self.is_ext = False
- self.ext_name = ''
- self.prefix = ('xcb',)
-
-
-class Module(object):
- '''
- This is the grand, encompassing class that represents an entire XCB specification.
- Only gets instantiated once, in the main() routine.
-
- Don't need to worry about this much except to declare it and to get the namespace.
-
- Public fields:
- namespace contains the namespace info for the spec.
- '''
- open = __main__.output['open']
- close = __main__.output['close']
-
- def __init__(self, filename, output):
- self.namespace = Namespace(filename)
- self.output = output
-
- self.imports = []
- self.types = {}
- self.events = {}
- self.errors = {}
- self.all = []
-
- # Register some common types
- self.add_type('CARD8', '', ('uint8_t',), tcard8)
- self.add_type('CARD16', '', ('uint16_t',), tcard16)
- self.add_type('CARD32', '', ('uint32_t',), tcard32)
- self.add_type('INT8', '', ('int8_t',), tint8)
- self.add_type('INT16', '', ('int16_t',), tint16)
- self.add_type('INT32', '', ('int32_t',), tint32)
- self.add_type('BYTE', '', ('uint8_t',), tcard8)
- self.add_type('BOOL', '', ('uint8_t',), tcard8)
- self.add_type('char', '', ('char',), tchar)
- self.add_type('float', '', ('float',), tfloat)
- self.add_type('double', '', ('double',), tdouble)
- self.add_type('void', '', ('void',), tcard8)
-
- # This goes out and parses the rest of the XML
- def register(self):
- matcher.execute(self, self.namespace)
-
- # Recursively resolve all types
- def resolve(self):
- for (name, item) in self.all:
- item.resolve(self)
-
- # Call all the output methods
- def generate(self):
- self.open()
-
- for (name, item) in self.all:
- item.out(name)
-
- self.close()
-
- # Keeps track of what's been imported so far.
- def add_import(self, name, namespace):
- self.imports.append((name, namespace.header))
-
- def has_import(self, name):
- for (name_, header) in self.imports:
- if name_ == name:
- return True
- return False
-
- # Keeps track of non-request/event/error datatypes
- def add_type(self, id, ns, name, item):
- key = ns + id
- if key in self.types:
- return
- self.types[key] = (name, item)
- if name[:-1] == self.namespace.prefix:
- self.all.append((name, item))
-
- def get_type_impl(self, id, idx):
- key = id
- if key in self.types:
- return self.types[key][idx]
-
- key = self.namespace.ns + id
- if key in self.types:
- return self.types[key][idx]
-
- for key in self.types.keys():
- if key.rpartition(':')[2] == id:
- return self.types[key][idx]
-
- raise ResolveException('Type %s not found' % id)
-
- def get_type(self, id):
- return self.get_type_impl(id, 1)
-
- def get_type_name(self, id):
- return self.get_type_impl(id, 0)
-
- # Keeps track of request datatypes
- def add_request(self, id, name, item):
- if name[:-1] == self.namespace.prefix:
- self.all.append((name, item))
-
- # Keeps track of event datatypes
- def add_event(self, id, name, item):
- self.events[id] = (name, item)
- if name[:-1] == self.namespace.prefix:
- self.all.append((name, item))
-
- def get_event(self, id):
- return self.events[id][1]
-
- # Keeps track of error datatypes
- def add_error(self, id, name, item):
- self.errors[id] = (name, item)
- if name[:-1] == self.namespace.prefix:
- self.all.append((name, item))
-
- def get_error(self, id):
- return self.errors[id][1]
+'''
+This module contains the namespace class and the singleton module class.
+'''
+from os.path import dirname, basename
+from xml.etree.cElementTree import parse
+
+from xcbgen import matcher
+from xcbgen.error import *
+from xcbgen.xtypes import *
+
+import __main__
+
+class Namespace(object):
+ '''
+ Contains the naming information for an extension.
+
+ Public fields:
+
+ header is the header attribute ("header file" name).
+ is_ext is true for extensions, false for xproto.
+ major_version and minor_version are extension version info.
+ ext_xname is the X extension name string.
+ ext_name is the XCB extension name prefix.
+ '''
+ def __init__(self, filename):
+ # Path info
+ self.path = filename
+ self.dir = dirname(filename)
+ self.file = basename(filename)
+
+ # Parse XML
+ self.root = parse(filename).getroot()
+ self.header = self.root.get('header')
+ self.ns = self.header + ':'
+
+ # Get root element attributes
+ if self.root.get('extension-xname', False):
+ self.is_ext = True
+ self.major_version = self.root.get('major-version')
+ self.minor_version = self.root.get('minor-version')
+ self.ext_xname = self.root.get('extension-xname')
+ self.ext_name = self.root.get('extension-name')
+ self.prefix = ('xcb', self.ext_name)
+ else:
+ self.is_ext = False
+ self.ext_name = ''
+ self.prefix = ('xcb',)
+
+
+class Module(object):
+ '''
+ This is the grand, encompassing class that represents an entire XCB specification.
+ Only gets instantiated once, in the main() routine.
+
+ Don't need to worry about this much except to declare it and to get the namespace.
+
+ Public fields:
+ namespace contains the namespace info for the spec.
+ '''
+ open = __main__.output['open']
+ close = __main__.output['close']
+
+ def __init__(self, filename, output):
+ self.namespace = Namespace(filename)
+ self.output = output
+
+ self.imports = []
+ self.types = {}
+ self.events = {}
+ self.errors = {}
+ self.all = []
+
+ # Register some common types
+ self.add_type('CARD8', '', ('uint8_t',), tcard8)
+ self.add_type('CARD16', '', ('uint16_t',), tcard16)
+ self.add_type('CARD32', '', ('uint32_t',), tcard32)
+ self.add_type('INT8', '', ('int8_t',), tint8)
+ self.add_type('INT16', '', ('int16_t',), tint16)
+ self.add_type('INT32', '', ('int32_t',), tint32)
+ self.add_type('BYTE', '', ('uint8_t',), tcard8)
+ self.add_type('BOOL', '', ('uint8_t',), tcard8)
+ self.add_type('char', '', ('char',), tchar)
+ self.add_type('float', '', ('float',), tfloat)
+ self.add_type('double', '', ('double',), tdouble)
+ self.add_type('void', '', ('void',), tcard8)
+
+ # This goes out and parses the rest of the XML
+ def register(self):
+ matcher.execute(self, self.namespace)
+
+ # Recursively resolve all types
+ def resolve(self):
+ for (name, item) in self.all:
+ item.resolve(self)
+
+ # Call all the output methods
+ def generate(self):
+ self.open()
+
+ for (name, item) in self.all:
+ item.out(name)
+
+ self.close()
+
+ # Keeps track of what's been imported so far.
+ def add_import(self, name, namespace):
+ self.imports.append((name, namespace.header))
+
+ def has_import(self, name):
+ for (name_, header) in self.imports:
+ if name_ == name:
+ return True
+ return False
+
+ # Keeps track of non-request/event/error datatypes
+ def add_type(self, id, ns, name, item):
+ key = ns + id
+ if key in self.types:
+ return
+ self.types[key] = (name, item)
+ if name[:-1] == self.namespace.prefix:
+ self.all.append((name, item))
+
+ def get_type_impl(self, id, idx):
+ key = id
+ if key in self.types:
+ return self.types[key][idx]
+
+ key = self.namespace.ns + id
+ if key in self.types:
+ return self.types[key][idx]
+
+ for key in self.types.keys():
+ if key.rpartition(':')[2] == id:
+ return self.types[key][idx]
+
+ raise ResolveException('Type %s not found' % id)
+
+ def get_type(self, id):
+ return self.get_type_impl(id, 1)
+
+ def get_type_name(self, id):
+ return self.get_type_impl(id, 0)
+
+ # Keeps track of request datatypes
+ def add_request(self, id, name, item):
+ if name[:-1] == self.namespace.prefix:
+ self.all.append((name, item))
+
+ # Keeps track of event datatypes
+ def add_event(self, id, name, item):
+ self.events[id] = (name, item)
+ if name[:-1] == self.namespace.prefix:
+ self.all.append((name, item))
+
+ def get_event(self, id):
+ return self.events[id][1]
+
+ # Keeps track of error datatypes
+ def add_error(self, id, name, item):
+ self.errors[id] = (name, item)
+ if name[:-1] == self.namespace.prefix:
+ self.all.append((name, item))
+
+ def get_error(self, id):
+ return self.errors[id][1]
diff --git a/libxcb/xcb-proto/xcbgen/xtypes.py b/libxcb/xcb-proto/xcbgen/xtypes.py
index 882acc9b8..14c318ac3 100644
--- a/libxcb/xcb-proto/xcbgen/xtypes.py
+++ b/libxcb/xcb-proto/xcbgen/xtypes.py
@@ -1,632 +1,632 @@
-'''
-This module contains the classes which represent XCB data types.
-'''
-from xcbgen.expr import Field, Expression
-import __main__
-
-class Type(object):
- '''
- Abstract base class for all XCB data types.
- Contains default fields, and some abstract methods.
- '''
- def __init__(self, name):
- '''
- Default structure initializer. Sets up default fields.
-
- Public fields:
- name is a tuple of strings specifying the full type name.
- size is the size of the datatype in bytes, or None if variable-sized.
- nmemb is 1 for non-list types, None for variable-sized lists, otherwise number of elts.
- booleans for identifying subclasses, because I can't figure out isinstance().
- '''
- self.name = name
- self.size = None
- self.nmemb = None
- self.resolved = False
-
- # Screw isinstance().
- self.is_simple = False
- self.is_list = False
- self.is_expr = False
- self.is_container = False
- self.is_reply = False
- self.is_union = False
- self.is_pad = False
- self.is_switch = False
- self.is_bitcase = False
-
- def resolve(self, module):
- '''
- Abstract method for resolving a type.
- This should make sure any referenced types are already declared.
- '''
- raise Exception('abstract resolve method not overridden!')
-
- def out(self, name):
- '''
- Abstract method for outputting code.
- These are declared in the language-specific modules, and
- there must be a dictionary containing them declared when this module is imported!
- '''
- raise Exception('abstract out method not overridden!')
-
- def fixed_size(self):
- '''
- Abstract method for determining if the data type is fixed-size.
- '''
- raise Exception('abstract fixed_size method not overridden!')
-
- def make_member_of(self, module, complex_type, field_type, field_name, visible, wire, auto):
- '''
- Default method for making a data type a member of a structure.
- Extend this if the data type needs to add an additional length field or something.
-
- module is the global module object.
- complex_type is the structure object.
- see Field for the meaning of the other parameters.
- '''
- new_field = Field(self, field_type, field_name, visible, wire, auto)
-
- # We dump the _placeholder_byte if any fields are added.
- for (idx, field) in enumerate(complex_type.fields):
- if field == _placeholder_byte:
- complex_type.fields[idx] = new_field
- return
-
- complex_type.fields.append(new_field)
-
-
-class SimpleType(Type):
- '''
- Derived class which represents a cardinal type like CARD32 or char.
- Any type which is typedef'ed to cardinal will be one of these.
-
- Public fields added:
- none
- '''
- def __init__(self, name, size):
- Type.__init__(self, name)
- self.is_simple = True
- self.size = size
- self.nmemb = 1
-
- def resolve(self, module):
- self.resolved = True
-
- def fixed_size(self):
- return True
-
- out = __main__.output['simple']
-
-
-# Cardinal datatype globals. See module __init__ method.
-tcard8 = SimpleType(('uint8_t',), 1)
-tcard16 = SimpleType(('uint16_t',), 2)
-tcard32 = SimpleType(('uint32_t',), 4)
-tint8 = SimpleType(('int8_t',), 1)
-tint16 = SimpleType(('int16_t',), 2)
-tint32 = SimpleType(('int32_t',), 4)
-tchar = SimpleType(('char',), 1)
-tfloat = SimpleType(('float',), 4)
-tdouble = SimpleType(('double',), 8)
-
-
-class Enum(SimpleType):
- '''
- Derived class which represents an enum. Fixed-size.
-
- Public fields added:
- values contains a list of (name, value) tuples. value is empty, or a number.
- bits contains a list of (name, bitnum) tuples. items only appear if specified as a bit. bitnum is a number.
- '''
- def __init__(self, name, elt):
- SimpleType.__init__(self, name, 4)
- self.values = []
- self.bits = []
- for item in list(elt):
- # First check if we're using a default value
- if len(list(item)) == 0:
- self.values.append((item.get('name'), ''))
- continue
-
- # An explicit value or bit was specified.
- value = list(item)[0]
- if value.tag == 'value':
- self.values.append((item.get('name'), value.text))
- elif value.tag == 'bit':
- self.values.append((item.get('name'), '%u' % (1 << int(value.text, 0))))
- self.bits.append((item.get('name'), value.text))
-
- def resolve(self, module):
- self.resolved = True
-
- def fixed_size(self):
- return True
-
- out = __main__.output['enum']
-
-
-class ListType(Type):
- '''
- Derived class which represents a list of some other datatype. Fixed- or variable-sized.
-
- Public fields added:
- member is the datatype of the list elements.
- parent is the structure type containing the list.
- expr is an Expression object containing the length information, for variable-sized lists.
- '''
- def __init__(self, elt, member, *parent):
- Type.__init__(self, member.name)
- self.is_list = True
- self.member = member
- self.parents = list(parent)
-
- if elt.tag == 'list':
- elts = list(elt)
- self.expr = Expression(elts[0] if len(elts) else elt, self)
- elif elt.tag == 'valueparam':
- self.expr = Expression(elt, self)
-
- self.size = member.size if member.fixed_size() else None
- self.nmemb = self.expr.nmemb if self.expr.fixed_size() else None
-
- def make_member_of(self, module, complex_type, field_type, field_name, visible, wire, auto):
- if not self.fixed_size():
- # We need a length field.
- # Ask our Expression object for it's name, type, and whether it's on the wire.
- lenfid = self.expr.lenfield_type
- lenfield_name = self.expr.lenfield_name
- lenwire = self.expr.lenwire
- needlen = True
-
- # See if the length field is already in the structure.
- for parent in self.parents:
- for field in parent.fields:
- if field.field_name == lenfield_name:
- needlen = False
-
- # It isn't, so we need to add it to the structure ourself.
- if needlen:
- type = module.get_type(lenfid)
- lenfield_type = module.get_type_name(lenfid)
- type.make_member_of(module, complex_type, lenfield_type, lenfield_name, True, lenwire, False)
-
- # Add ourself to the structure by calling our original method.
- Type.make_member_of(self, module, complex_type, field_type, field_name, visible, wire, auto)
-
- def resolve(self, module):
- if self.resolved:
- return
- self.member.resolve(module)
- self.expr.resolve(module, self.parents)
-
- # Find my length field again. We need the actual Field object in the expr.
- # This is needed because we might have added it ourself above.
- if not self.fixed_size():
- for parent in self.parents:
- for field in parent.fields:
- if field.field_name == self.expr.lenfield_name and field.wire:
- self.expr.lenfield = field
- break
-
- self.resolved = True
-
- def fixed_size(self):
- return self.member.fixed_size() and self.expr.fixed_size()
-
-class ExprType(Type):
- '''
- Derived class which represents an exprfield. Fixed size.
-
- Public fields added:
- expr is an Expression object containing the value of the field.
- '''
- def __init__(self, elt, member, *parent):
- Type.__init__(self, member.name)
- self.is_expr = True
- self.member = member
- self.parent = parent
-
- self.expr = Expression(list(elt)[0], self)
-
- self.size = member.size
- self.nmemb = 1
-
- def resolve(self, module):
- if self.resolved:
- return
- self.member.resolve(module)
- self.resolved = True
-
- def fixed_size(self):
- return True
-
-class PadType(Type):
- '''
- Derived class which represents a padding field.
- '''
- def __init__(self, elt):
- Type.__init__(self, tcard8.name)
- self.is_pad = True
- self.size = 1
- self.nmemb = 1 if (elt == None) else int(elt.get('bytes'), 0)
-
- def resolve(self, module):
- self.resolved = True
-
- def fixed_size(self):
- return True
-
-
-class ComplexType(Type):
- '''
- Derived class which represents a structure. Base type for all structure types.
-
- Public fields added:
- fields is an array of Field objects describing the structure fields.
- '''
- def __init__(self, name, elt):
- Type.__init__(self, name)
- self.is_container = True
- self.elt = elt
- self.fields = []
- self.nmemb = 1
- self.size = 0
- self.lenfield_parent = [self]
-
- def resolve(self, module):
- if self.resolved:
- return
- pads = 0
-
- # Resolve all of our field datatypes.
- for child in list(self.elt):
- if child.tag == 'pad':
- field_name = 'pad' + str(pads)
- fkey = 'CARD8'
- type = PadType(child)
- pads = pads + 1
- visible = False
- elif child.tag == 'field':
- field_name = child.get('name')
- fkey = child.get('type')
- type = module.get_type(fkey)
- visible = True
- elif child.tag == 'exprfield':
- field_name = child.get('name')
- fkey = child.get('type')
- type = ExprType(child, module.get_type(fkey), *self.lenfield_parent)
- visible = False
- elif child.tag == 'list':
- field_name = child.get('name')
- fkey = child.get('type')
- type = ListType(child, module.get_type(fkey), *self.lenfield_parent)
- visible = True
- elif child.tag == 'valueparam':
- field_name = child.get('value-list-name')
- fkey = 'CARD32'
- type = ListType(child, module.get_type(fkey), *self.lenfield_parent)
- visible = True
- elif child.tag == 'switch':
- field_name = child.get('name')
- # construct the switch type name from the parent type and the field name
- field_type = self.name + (field_name,)
- type = SwitchType(field_type, child, *self.lenfield_parent)
- visible = True
- type.make_member_of(module, self, field_type, field_name, visible, True, False)
- type.resolve(module)
- continue
- else:
- # Hit this on Reply
- continue
-
- # Get the full type name for the field
- field_type = module.get_type_name(fkey)
- # Add the field to ourself
- type.make_member_of(module, self, field_type, field_name, visible, True, False)
- # Recursively resolve the type (could be another structure, list)
- type.resolve(module)
-
- self.calc_size() # Figure out how big we are
- self.resolved = True
-
- def calc_size(self):
- self.size = 0
- for m in self.fields:
- if not m.wire:
- continue
- if m.type.fixed_size():
- self.size = self.size + (m.type.size * m.type.nmemb)
- else:
- self.size = None
- break
-
- def fixed_size(self):
- for m in self.fields:
- if not m.type.fixed_size():
- return False
- return True
-
-class SwitchType(ComplexType):
- '''
- Derived class which represents a List of Items.
-
- Public fields added:
- bitcases is an array of Bitcase objects describing the list items
- '''
-
- def __init__(self, name, elt, *parents):
- ComplexType.__init__(self, name, elt)
- self.parents = parents
- # FIXME: switch cannot store lenfields, so it should just delegate the parents
- self.lenfield_parent = list(parents) + [self]
- # self.fields contains all possible fields collected from the Bitcase objects,
- # whereas self.items contains the Bitcase objects themselves
- self.bitcases = []
-
- self.is_switch = True
- elts = list(elt)
- self.expr = Expression(elts[0] if len(elts) else elt, self)
-
- def resolve(self, module):
- if self.resolved:
- return
-# pads = 0
-
- parents = list(self.parents) + [self]
-
- # Resolve all of our field datatypes.
- for index, child in enumerate(list(self.elt)):
- if child.tag == 'bitcase':
- field_name = child.get('name')
- if field_name is None:
- field_type = self.name + ('bitcase%d' % index,)
- else:
- field_type = self.name + (field_name,)
-
- # use self.parent to indicate anchestor,
- # as switch does not contain named fields itself
- type = BitcaseType(index, field_type, child, *parents)
- # construct the switch type name from the parent type and the field name
- if field_name is None:
- type.has_name = False
- # Get the full type name for the field
- field_type = type.name
- visible = True
-
- # add the field to ourself
- type.make_member_of(module, self, field_type, field_name, visible, True, False)
-
- # recursively resolve the type (could be another structure, list)
- type.resolve(module)
- inserted = False
- for new_field in type.fields:
- # We dump the _placeholder_byte if any fields are added.
- for (idx, field) in enumerate(self.fields):
- if field == _placeholder_byte:
- self.fields[idx] = new_field
- inserted = True
- break
- if False == inserted:
- self.fields.append(new_field)
-
- self.calc_size() # Figure out how big we are
- self.resolved = True
-
- def make_member_of(self, module, complex_type, field_type, field_name, visible, wire, auto):
- if not self.fixed_size():
- # We need a length field.
- # Ask our Expression object for it's name, type, and whether it's on the wire.
- lenfid = self.expr.lenfield_type
- lenfield_name = self.expr.lenfield_name
- lenwire = self.expr.lenwire
- needlen = True
-
- # See if the length field is already in the structure.
- for parent in self.parents:
- for field in parent.fields:
- if field.field_name == lenfield_name:
- needlen = False
-
- # It isn't, so we need to add it to the structure ourself.
- if needlen:
- type = module.get_type(lenfid)
- lenfield_type = module.get_type_name(lenfid)
- type.make_member_of(module, complex_type, lenfield_type, lenfield_name, True, lenwire, False)
-
- # Add ourself to the structure by calling our original method.
- Type.make_member_of(self, module, complex_type, field_type, field_name, visible, wire, auto)
-
- # size for switch can only be calculated at runtime
- def calc_size(self):
- pass
-
- # note: switch is _always_ of variable size, but we indicate here wether
- # it contains elements that are variable-sized themselves
- def fixed_size(self):
- return False
-# for m in self.fields:
-# if not m.type.fixed_size():
-# return False
-# return True
-
-
-class Struct(ComplexType):
- '''
- Derived class representing a struct data type.
- '''
- out = __main__.output['struct']
-
-
-class Union(ComplexType):
- '''
- Derived class representing a union data type.
- '''
- def __init__(self, name, elt):
- ComplexType.__init__(self, name, elt)
- self.is_union = True
-
- out = __main__.output['union']
-
-
-class BitcaseType(ComplexType):
- '''
- Derived class representing a struct data type.
- '''
- def __init__(self, index, name, elt, *parent):
- elts = list(elt)
- self.expr = Expression(elts[0] if len(elts) else elt, self)
- ComplexType.__init__(self, name, elts[1:])
- self.has_name = True
- self.index = 1
- self.lenfield_parent = list(parent) + [self]
- self.parents = list(parent)
- self.is_bitcase = True
-
- def make_member_of(self, module, switch_type, field_type, field_name, visible, wire, auto):
- '''
- register BitcaseType with the corresponding SwitchType
-
- module is the global module object.
- complex_type is the structure object.
- see Field for the meaning of the other parameters.
- '''
- new_field = Field(self, field_type, field_name, visible, wire, auto)
-
- # We dump the _placeholder_byte if any bitcases are added.
- for (idx, field) in enumerate(switch_type.bitcases):
- if field == _placeholder_byte:
- switch_type.bitcases[idx] = new_field
- return
-
- switch_type.bitcases.append(new_field)
-
- def resolve(self, module):
- if self.resolved:
- return
-
- self.expr.resolve(module, self.parents+[self])
-
- # Resolve the bitcase expression
- ComplexType.resolve(self, module)
-
-
-class Reply(ComplexType):
- '''
- Derived class representing a reply. Only found as a field of Request.
- '''
- def __init__(self, name, elt):
- ComplexType.__init__(self, name, elt)
- self.is_reply = True
-
- def resolve(self, module):
- if self.resolved:
- return
- # Add the automatic protocol fields
- self.fields.append(Field(tcard8, tcard8.name, 'response_type', False, True, True))
- self.fields.append(_placeholder_byte)
- self.fields.append(Field(tcard16, tcard16.name, 'sequence', False, True, True))
- self.fields.append(Field(tcard32, tcard32.name, 'length', False, True, True))
- ComplexType.resolve(self, module)
-
-
-class Request(ComplexType):
- '''
- Derived class representing a request.
-
- Public fields added:
- reply contains the reply datatype or None for void requests.
- opcode contains the request number.
- '''
- def __init__(self, name, elt):
- ComplexType.__init__(self, name, elt)
- self.reply = None
- self.opcode = elt.get('opcode')
-
- for child in list(elt):
- if child.tag == 'reply':
- self.reply = Reply(name, child)
-
- def resolve(self, module):
- if self.resolved:
- return
- # Add the automatic protocol fields
- if module.namespace.is_ext:
- self.fields.append(Field(tcard8, tcard8.name, 'major_opcode', False, True, True))
- self.fields.append(Field(tcard8, tcard8.name, 'minor_opcode', False, True, True))
- self.fields.append(Field(tcard16, tcard16.name, 'length', False, True, True))
- ComplexType.resolve(self, module)
- else:
- self.fields.append(Field(tcard8, tcard8.name, 'major_opcode', False, True, True))
- self.fields.append(_placeholder_byte)
- self.fields.append(Field(tcard16, tcard16.name, 'length', False, True, True))
- ComplexType.resolve(self, module)
-
- if self.reply:
- self.reply.resolve(module)
-
- out = __main__.output['request']
-
-
-class Event(ComplexType):
- '''
- Derived class representing an event data type.
-
- Public fields added:
- opcodes is a dictionary of name -> opcode number, for eventcopies.
- '''
- def __init__(self, name, elt):
- ComplexType.__init__(self, name, elt)
- self.opcodes = {}
-
- tmp = elt.get('no-sequence-number')
- self.has_seq = (tmp == None or tmp.lower() == 'false' or tmp == '0')
-
- def add_opcode(self, opcode, name, main):
- self.opcodes[name] = opcode
- if main:
- self.name = name
-
- def resolve(self, module):
- if self.resolved:
- return
-
- # Add the automatic protocol fields
- self.fields.append(Field(tcard8, tcard8.name, 'response_type', False, True, True))
- if self.has_seq:
- self.fields.append(_placeholder_byte)
- self.fields.append(Field(tcard16, tcard16.name, 'sequence', False, True, True))
- ComplexType.resolve(self, module)
-
- out = __main__.output['event']
-
-
-class Error(ComplexType):
- '''
- Derived class representing an error data type.
-
- Public fields added:
- opcodes is a dictionary of name -> opcode number, for errorcopies.
- '''
- def __init__(self, name, elt):
- ComplexType.__init__(self, name, elt)
- self.opcodes = {}
-
- def add_opcode(self, opcode, name, main):
- self.opcodes[name] = opcode
- if main:
- self.name = name
-
- def resolve(self, module):
- if self.resolved:
- return
-
- # Add the automatic protocol fields
- self.fields.append(Field(tcard8, tcard8.name, 'response_type', False, True, True))
- self.fields.append(Field(tcard8, tcard8.name, 'error_code', False, True, True))
- self.fields.append(Field(tcard16, tcard16.name, 'sequence', False, True, True))
- ComplexType.resolve(self, module)
-
- out = __main__.output['error']
-
-_placeholder_byte = Field(PadType(None), tcard8.name, 'pad0', False, True, False)
+'''
+This module contains the classes which represent XCB data types.
+'''
+from xcbgen.expr import Field, Expression
+import __main__
+
+class Type(object):
+ '''
+ Abstract base class for all XCB data types.
+ Contains default fields, and some abstract methods.
+ '''
+ def __init__(self, name):
+ '''
+ Default structure initializer. Sets up default fields.
+
+ Public fields:
+ name is a tuple of strings specifying the full type name.
+ size is the size of the datatype in bytes, or None if variable-sized.
+ nmemb is 1 for non-list types, None for variable-sized lists, otherwise number of elts.
+ booleans for identifying subclasses, because I can't figure out isinstance().
+ '''
+ self.name = name
+ self.size = None
+ self.nmemb = None
+ self.resolved = False
+
+ # Screw isinstance().
+ self.is_simple = False
+ self.is_list = False
+ self.is_expr = False
+ self.is_container = False
+ self.is_reply = False
+ self.is_union = False
+ self.is_pad = False
+ self.is_switch = False
+ self.is_bitcase = False
+
+ def resolve(self, module):
+ '''
+ Abstract method for resolving a type.
+ This should make sure any referenced types are already declared.
+ '''
+ raise Exception('abstract resolve method not overridden!')
+
+ def out(self, name):
+ '''
+ Abstract method for outputting code.
+ These are declared in the language-specific modules, and
+ there must be a dictionary containing them declared when this module is imported!
+ '''
+ raise Exception('abstract out method not overridden!')
+
+ def fixed_size(self):
+ '''
+ Abstract method for determining if the data type is fixed-size.
+ '''
+ raise Exception('abstract fixed_size method not overridden!')
+
+ def make_member_of(self, module, complex_type, field_type, field_name, visible, wire, auto):
+ '''
+ Default method for making a data type a member of a structure.
+ Extend this if the data type needs to add an additional length field or something.
+
+ module is the global module object.
+ complex_type is the structure object.
+ see Field for the meaning of the other parameters.
+ '''
+ new_field = Field(self, field_type, field_name, visible, wire, auto)
+
+ # We dump the _placeholder_byte if any fields are added.
+ for (idx, field) in enumerate(complex_type.fields):
+ if field == _placeholder_byte:
+ complex_type.fields[idx] = new_field
+ return
+
+ complex_type.fields.append(new_field)
+
+
+class SimpleType(Type):
+ '''
+ Derived class which represents a cardinal type like CARD32 or char.
+ Any type which is typedef'ed to cardinal will be one of these.
+
+ Public fields added:
+ none
+ '''
+ def __init__(self, name, size):
+ Type.__init__(self, name)
+ self.is_simple = True
+ self.size = size
+ self.nmemb = 1
+
+ def resolve(self, module):
+ self.resolved = True
+
+ def fixed_size(self):
+ return True
+
+ out = __main__.output['simple']
+
+
+# Cardinal datatype globals. See module __init__ method.
+tcard8 = SimpleType(('uint8_t',), 1)
+tcard16 = SimpleType(('uint16_t',), 2)
+tcard32 = SimpleType(('uint32_t',), 4)
+tint8 = SimpleType(('int8_t',), 1)
+tint16 = SimpleType(('int16_t',), 2)
+tint32 = SimpleType(('int32_t',), 4)
+tchar = SimpleType(('char',), 1)
+tfloat = SimpleType(('float',), 4)
+tdouble = SimpleType(('double',), 8)
+
+
+class Enum(SimpleType):
+ '''
+ Derived class which represents an enum. Fixed-size.
+
+ Public fields added:
+ values contains a list of (name, value) tuples. value is empty, or a number.
+ bits contains a list of (name, bitnum) tuples. items only appear if specified as a bit. bitnum is a number.
+ '''
+ def __init__(self, name, elt):
+ SimpleType.__init__(self, name, 4)
+ self.values = []
+ self.bits = []
+ for item in list(elt):
+ # First check if we're using a default value
+ if len(list(item)) == 0:
+ self.values.append((item.get('name'), ''))
+ continue
+
+ # An explicit value or bit was specified.
+ value = list(item)[0]
+ if value.tag == 'value':
+ self.values.append((item.get('name'), value.text))
+ elif value.tag == 'bit':
+ self.values.append((item.get('name'), '%u' % (1 << int(value.text, 0))))
+ self.bits.append((item.get('name'), value.text))
+
+ def resolve(self, module):
+ self.resolved = True
+
+ def fixed_size(self):
+ return True
+
+ out = __main__.output['enum']
+
+
+class ListType(Type):
+ '''
+ Derived class which represents a list of some other datatype. Fixed- or variable-sized.
+
+ Public fields added:
+ member is the datatype of the list elements.
+ parent is the structure type containing the list.
+ expr is an Expression object containing the length information, for variable-sized lists.
+ '''
+ def __init__(self, elt, member, *parent):
+ Type.__init__(self, member.name)
+ self.is_list = True
+ self.member = member
+ self.parents = list(parent)
+
+ if elt.tag == 'list':
+ elts = list(elt)
+ self.expr = Expression(elts[0] if len(elts) else elt, self)
+ elif elt.tag == 'valueparam':
+ self.expr = Expression(elt, self)
+
+ self.size = member.size if member.fixed_size() else None
+ self.nmemb = self.expr.nmemb if self.expr.fixed_size() else None
+
+ def make_member_of(self, module, complex_type, field_type, field_name, visible, wire, auto):
+ if not self.fixed_size():
+ # We need a length field.
+ # Ask our Expression object for it's name, type, and whether it's on the wire.
+ lenfid = self.expr.lenfield_type
+ lenfield_name = self.expr.lenfield_name
+ lenwire = self.expr.lenwire
+ needlen = True
+
+ # See if the length field is already in the structure.
+ for parent in self.parents:
+ for field in parent.fields:
+ if field.field_name == lenfield_name:
+ needlen = False
+
+ # It isn't, so we need to add it to the structure ourself.
+ if needlen:
+ type = module.get_type(lenfid)
+ lenfield_type = module.get_type_name(lenfid)
+ type.make_member_of(module, complex_type, lenfield_type, lenfield_name, True, lenwire, False)
+
+ # Add ourself to the structure by calling our original method.
+ Type.make_member_of(self, module, complex_type, field_type, field_name, visible, wire, auto)
+
+ def resolve(self, module):
+ if self.resolved:
+ return
+ self.member.resolve(module)
+ self.expr.resolve(module, self.parents)
+
+ # Find my length field again. We need the actual Field object in the expr.
+ # This is needed because we might have added it ourself above.
+ if not self.fixed_size():
+ for parent in self.parents:
+ for field in parent.fields:
+ if field.field_name == self.expr.lenfield_name and field.wire:
+ self.expr.lenfield = field
+ break
+
+ self.resolved = True
+
+ def fixed_size(self):
+ return self.member.fixed_size() and self.expr.fixed_size()
+
+class ExprType(Type):
+ '''
+ Derived class which represents an exprfield. Fixed size.
+
+ Public fields added:
+ expr is an Expression object containing the value of the field.
+ '''
+ def __init__(self, elt, member, *parent):
+ Type.__init__(self, member.name)
+ self.is_expr = True
+ self.member = member
+ self.parent = parent
+
+ self.expr = Expression(list(elt)[0], self)
+
+ self.size = member.size
+ self.nmemb = 1
+
+ def resolve(self, module):
+ if self.resolved:
+ return
+ self.member.resolve(module)
+ self.resolved = True
+
+ def fixed_size(self):
+ return True
+
+class PadType(Type):
+ '''
+ Derived class which represents a padding field.
+ '''
+ def __init__(self, elt):
+ Type.__init__(self, tcard8.name)
+ self.is_pad = True
+ self.size = 1
+ self.nmemb = 1 if (elt == None) else int(elt.get('bytes'), 0)
+
+ def resolve(self, module):
+ self.resolved = True
+
+ def fixed_size(self):
+ return True
+
+
+class ComplexType(Type):
+ '''
+ Derived class which represents a structure. Base type for all structure types.
+
+ Public fields added:
+ fields is an array of Field objects describing the structure fields.
+ '''
+ def __init__(self, name, elt):
+ Type.__init__(self, name)
+ self.is_container = True
+ self.elt = elt
+ self.fields = []
+ self.nmemb = 1
+ self.size = 0
+ self.lenfield_parent = [self]
+
+ def resolve(self, module):
+ if self.resolved:
+ return
+ pads = 0
+
+ # Resolve all of our field datatypes.
+ for child in list(self.elt):
+ if child.tag == 'pad':
+ field_name = 'pad' + str(pads)
+ fkey = 'CARD8'
+ type = PadType(child)
+ pads = pads + 1
+ visible = False
+ elif child.tag == 'field':
+ field_name = child.get('name')
+ fkey = child.get('type')
+ type = module.get_type(fkey)
+ visible = True
+ elif child.tag == 'exprfield':
+ field_name = child.get('name')
+ fkey = child.get('type')
+ type = ExprType(child, module.get_type(fkey), *self.lenfield_parent)
+ visible = False
+ elif child.tag == 'list':
+ field_name = child.get('name')
+ fkey = child.get('type')
+ type = ListType(child, module.get_type(fkey), *self.lenfield_parent)
+ visible = True
+ elif child.tag == 'valueparam':
+ field_name = child.get('value-list-name')
+ fkey = 'CARD32'
+ type = ListType(child, module.get_type(fkey), *self.lenfield_parent)
+ visible = True
+ elif child.tag == 'switch':
+ field_name = child.get('name')
+ # construct the switch type name from the parent type and the field name
+ field_type = self.name + (field_name,)
+ type = SwitchType(field_type, child, *self.lenfield_parent)
+ visible = True
+ type.make_member_of(module, self, field_type, field_name, visible, True, False)
+ type.resolve(module)
+ continue
+ else:
+ # Hit this on Reply
+ continue
+
+ # Get the full type name for the field
+ field_type = module.get_type_name(fkey)
+ # Add the field to ourself
+ type.make_member_of(module, self, field_type, field_name, visible, True, False)
+ # Recursively resolve the type (could be another structure, list)
+ type.resolve(module)
+
+ self.calc_size() # Figure out how big we are
+ self.resolved = True
+
+ def calc_size(self):
+ self.size = 0
+ for m in self.fields:
+ if not m.wire:
+ continue
+ if m.type.fixed_size():
+ self.size = self.size + (m.type.size * m.type.nmemb)
+ else:
+ self.size = None
+ break
+
+ def fixed_size(self):
+ for m in self.fields:
+ if not m.type.fixed_size():
+ return False
+ return True
+
+class SwitchType(ComplexType):
+ '''
+ Derived class which represents a List of Items.
+
+ Public fields added:
+ bitcases is an array of Bitcase objects describing the list items
+ '''
+
+ def __init__(self, name, elt, *parents):
+ ComplexType.__init__(self, name, elt)
+ self.parents = parents
+ # FIXME: switch cannot store lenfields, so it should just delegate the parents
+ self.lenfield_parent = list(parents) + [self]
+ # self.fields contains all possible fields collected from the Bitcase objects,
+ # whereas self.items contains the Bitcase objects themselves
+ self.bitcases = []
+
+ self.is_switch = True
+ elts = list(elt)
+ self.expr = Expression(elts[0] if len(elts) else elt, self)
+
+ def resolve(self, module):
+ if self.resolved:
+ return
+# pads = 0
+
+ parents = list(self.parents) + [self]
+
+ # Resolve all of our field datatypes.
+ for index, child in enumerate(list(self.elt)):
+ if child.tag == 'bitcase':
+ field_name = child.get('name')
+ if field_name is None:
+ field_type = self.name + ('bitcase%d' % index,)
+ else:
+ field_type = self.name + (field_name,)
+
+ # use self.parent to indicate anchestor,
+ # as switch does not contain named fields itself
+ type = BitcaseType(index, field_type, child, *parents)
+ # construct the switch type name from the parent type and the field name
+ if field_name is None:
+ type.has_name = False
+ # Get the full type name for the field
+ field_type = type.name
+ visible = True
+
+ # add the field to ourself
+ type.make_member_of(module, self, field_type, field_name, visible, True, False)
+
+ # recursively resolve the type (could be another structure, list)
+ type.resolve(module)
+ inserted = False
+ for new_field in type.fields:
+ # We dump the _placeholder_byte if any fields are added.
+ for (idx, field) in enumerate(self.fields):
+ if field == _placeholder_byte:
+ self.fields[idx] = new_field
+ inserted = True
+ break
+ if False == inserted:
+ self.fields.append(new_field)
+
+ self.calc_size() # Figure out how big we are
+ self.resolved = True
+
+ def make_member_of(self, module, complex_type, field_type, field_name, visible, wire, auto):
+ if not self.fixed_size():
+ # We need a length field.
+ # Ask our Expression object for it's name, type, and whether it's on the wire.
+ lenfid = self.expr.lenfield_type
+ lenfield_name = self.expr.lenfield_name
+ lenwire = self.expr.lenwire
+ needlen = True
+
+ # See if the length field is already in the structure.
+ for parent in self.parents:
+ for field in parent.fields:
+ if field.field_name == lenfield_name:
+ needlen = False
+
+ # It isn't, so we need to add it to the structure ourself.
+ if needlen:
+ type = module.get_type(lenfid)
+ lenfield_type = module.get_type_name(lenfid)
+ type.make_member_of(module, complex_type, lenfield_type, lenfield_name, True, lenwire, False)
+
+ # Add ourself to the structure by calling our original method.
+ Type.make_member_of(self, module, complex_type, field_type, field_name, visible, wire, auto)
+
+ # size for switch can only be calculated at runtime
+ def calc_size(self):
+ pass
+
+ # note: switch is _always_ of variable size, but we indicate here wether
+ # it contains elements that are variable-sized themselves
+ def fixed_size(self):
+ return False
+# for m in self.fields:
+# if not m.type.fixed_size():
+# return False
+# return True
+
+
+class Struct(ComplexType):
+ '''
+ Derived class representing a struct data type.
+ '''
+ out = __main__.output['struct']
+
+
+class Union(ComplexType):
+ '''
+ Derived class representing a union data type.
+ '''
+ def __init__(self, name, elt):
+ ComplexType.__init__(self, name, elt)
+ self.is_union = True
+
+ out = __main__.output['union']
+
+
+class BitcaseType(ComplexType):
+ '''
+ Derived class representing a struct data type.
+ '''
+ def __init__(self, index, name, elt, *parent):
+ elts = list(elt)
+ self.expr = Expression(elts[0] if len(elts) else elt, self)
+ ComplexType.__init__(self, name, elts[1:])
+ self.has_name = True
+ self.index = 1
+ self.lenfield_parent = list(parent) + [self]
+ self.parents = list(parent)
+ self.is_bitcase = True
+
+ def make_member_of(self, module, switch_type, field_type, field_name, visible, wire, auto):
+ '''
+ register BitcaseType with the corresponding SwitchType
+
+ module is the global module object.
+ complex_type is the structure object.
+ see Field for the meaning of the other parameters.
+ '''
+ new_field = Field(self, field_type, field_name, visible, wire, auto)
+
+ # We dump the _placeholder_byte if any bitcases are added.
+ for (idx, field) in enumerate(switch_type.bitcases):
+ if field == _placeholder_byte:
+ switch_type.bitcases[idx] = new_field
+ return
+
+ switch_type.bitcases.append(new_field)
+
+ def resolve(self, module):
+ if self.resolved:
+ return
+
+ self.expr.resolve(module, self.parents+[self])
+
+ # Resolve the bitcase expression
+ ComplexType.resolve(self, module)
+
+
+class Reply(ComplexType):
+ '''
+ Derived class representing a reply. Only found as a field of Request.
+ '''
+ def __init__(self, name, elt):
+ ComplexType.__init__(self, name, elt)
+ self.is_reply = True
+
+ def resolve(self, module):
+ if self.resolved:
+ return
+ # Add the automatic protocol fields
+ self.fields.append(Field(tcard8, tcard8.name, 'response_type', False, True, True))
+ self.fields.append(_placeholder_byte)
+ self.fields.append(Field(tcard16, tcard16.name, 'sequence', False, True, True))
+ self.fields.append(Field(tcard32, tcard32.name, 'length', False, True, True))
+ ComplexType.resolve(self, module)
+
+
+class Request(ComplexType):
+ '''
+ Derived class representing a request.
+
+ Public fields added:
+ reply contains the reply datatype or None for void requests.
+ opcode contains the request number.
+ '''
+ def __init__(self, name, elt):
+ ComplexType.__init__(self, name, elt)
+ self.reply = None
+ self.opcode = elt.get('opcode')
+
+ for child in list(elt):
+ if child.tag == 'reply':
+ self.reply = Reply(name, child)
+
+ def resolve(self, module):
+ if self.resolved:
+ return
+ # Add the automatic protocol fields
+ if module.namespace.is_ext:
+ self.fields.append(Field(tcard8, tcard8.name, 'major_opcode', False, True, True))
+ self.fields.append(Field(tcard8, tcard8.name, 'minor_opcode', False, True, True))
+ self.fields.append(Field(tcard16, tcard16.name, 'length', False, True, True))
+ ComplexType.resolve(self, module)
+ else:
+ self.fields.append(Field(tcard8, tcard8.name, 'major_opcode', False, True, True))
+ self.fields.append(_placeholder_byte)
+ self.fields.append(Field(tcard16, tcard16.name, 'length', False, True, True))
+ ComplexType.resolve(self, module)
+
+ if self.reply:
+ self.reply.resolve(module)
+
+ out = __main__.output['request']
+
+
+class Event(ComplexType):
+ '''
+ Derived class representing an event data type.
+
+ Public fields added:
+ opcodes is a dictionary of name -> opcode number, for eventcopies.
+ '''
+ def __init__(self, name, elt):
+ ComplexType.__init__(self, name, elt)
+ self.opcodes = {}
+
+ tmp = elt.get('no-sequence-number')
+ self.has_seq = (tmp == None or tmp.lower() == 'false' or tmp == '0')
+
+ def add_opcode(self, opcode, name, main):
+ self.opcodes[name] = opcode
+ if main:
+ self.name = name
+
+ def resolve(self, module):
+ if self.resolved:
+ return
+
+ # Add the automatic protocol fields
+ self.fields.append(Field(tcard8, tcard8.name, 'response_type', False, True, True))
+ if self.has_seq:
+ self.fields.append(_placeholder_byte)
+ self.fields.append(Field(tcard16, tcard16.name, 'sequence', False, True, True))
+ ComplexType.resolve(self, module)
+
+ out = __main__.output['event']
+
+
+class Error(ComplexType):
+ '''
+ Derived class representing an error data type.
+
+ Public fields added:
+ opcodes is a dictionary of name -> opcode number, for errorcopies.
+ '''
+ def __init__(self, name, elt):
+ ComplexType.__init__(self, name, elt)
+ self.opcodes = {}
+
+ def add_opcode(self, opcode, name, main):
+ self.opcodes[name] = opcode
+ if main:
+ self.name = name
+
+ def resolve(self, module):
+ if self.resolved:
+ return
+
+ # Add the automatic protocol fields
+ self.fields.append(Field(tcard8, tcard8.name, 'response_type', False, True, True))
+ self.fields.append(Field(tcard8, tcard8.name, 'error_code', False, True, True))
+ self.fields.append(Field(tcard16, tcard16.name, 'sequence', False, True, True))
+ ComplexType.resolve(self, module)
+
+ out = __main__.output['error']
+
+_placeholder_byte = Field(PadType(None), tcard8.name, 'pad0', False, True, False)
--
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