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-/* $Xorg: FSlibint.h,v 1.4 2001/02/09 02:03:25 xorgcvs Exp $ */
-
-/*
- * Copyright 1990 Network Computing Devices;
- * Portions Copyright 1987 by Digital Equipment Corporation
- *
- * Permission to use, copy, modify, distribute, and sell this software
- * and its documentation for any purpose is hereby granted without fee,
- * provided that the above copyright notice appear in all copies and
- * that both that copyright notice and this permission notice appear
- * in supporting documentation, and that the names of Network Computing
- * Devices or Digital not be used in advertising or publicity pertaining
- * to distribution of the software without specific, written prior
- * permission. Network Computing Devices or Digital make no representations
- * about the suitability of this software for any purpose. It is provided
- * "as is" without express or implied warranty.
- *
- * NETWORK COMPUTING DEVICES AND DIGITAL DISCLAIM ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL NETWORK COMPUTING DEVICES
- * OR DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES
- * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
- * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
- * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
- * SOFTWARE.
- */
-
-/*
-
-Copyright 1987, 1994, 1998 The Open Group
-
-Permission to use, copy, modify, distribute, and sell this software and its
-documentation for any purpose is hereby granted without fee, provided that
-the above copyright notice appear in all copies and that both that
-copyright notice and this permission notice appear in supporting
-documentation.
-
-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
-OPEN GROUP 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 name of The Open Group 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 Open Group.
-
-*/
-/* $XFree86: xc/lib/FS/FSlibint.h,v 3.8 2003/08/29 18:01:12 herrb Exp $ */
-
-/*
- * FSlib internal decls
- */
-#include <X11/Xos.h>
-#include <stdio.h>
-
-/* This is all probably superfluous given Xos.h above */
-#ifdef USG
-#ifndef __TYPES__
-#include <sys/types.h> /* forgot to protect it... */
-#define __TYPES__
-#endif /* __TYPES__ */
-#else
-#if defined(_POSIX_SOURCE) && defined(MOTOROLA)
-#undef _POSIX_SOURCE
-#include <sys/types.h>
-#define _POSIX_SOURCE
-#else
-#include <sys/types.h>
-#endif
-#endif /* USG */
-
-#include "FSlib.h"
-#include "FSlibos.h"
-#include <errno.h>
-#include <stddef.h>
-
-typedef int (* FSIOErrorHandler)(FSServer *);
-typedef int (* FSErrorHandler)(FSServer *, FSErrorEvent *);
-
-extern FSIOErrorHandler _FSIOErrorFunction;
-extern FSErrorHandler _FSErrorFunction;
-
-extern void _FSEatData ( FSServer *svr, unsigned long n );
-extern void _FSWaitForWritable ( FSServer *svr );
-extern void _FSWaitForReadable ( FSServer *svr );
-extern void _FSFlush ( FSServer *svr );
-extern void _FSRead ( FSServer *svr, char *data, long size );
-extern void _FSReadEvents ( FSServer *svr );
-extern void _FSReadPad ( FSServer *svr, char *data, long size );
-extern void _FSSend ( FSServer *svr, char *data, long size );
-extern void _FSEnq ( FSServer *svr, fsEvent *event );
-extern void _FSFreeServerStructure ( FSServer *svr );
-extern int _FSError ( FSServer *svr, fsError *rep );
-extern int _FSReply ( FSServer *svr, fsReply *rep, int extra, int discard );
-extern XtransConnInfo _FSConnectServer ( char *server_name );
-extern void _FSDisconnectServer ( XtransConnInfo trans_conn );
-extern void _FSSendClientPrefix ( FSServer *svr, fsConnClientPrefix *client );
-extern int _FSEventsQueued ( FSServer *svr, int mode );
-extern unsigned long _FSSetLastRequestRead ( FSServer *svr,
- fsGenericReply *rep );
-extern int _FSUnknownWireEvent ( FSServer *svr, FSEvent *re, fsEvent *event );
-extern int _FSUnknownNativeEvent ( FSServer *svr, FSEvent *re,
- fsEvent *event );
-extern int _FSWireToEvent ( FSServer *svr, FSEvent *re, fsEvent *event );
-extern int _FSDefaultIOError ( FSServer *svr );
-extern int _FSPrintDefaultError ( FSServer *svr, FSErrorEvent *event,
- FILE *fp );
-extern int _FSDefaultError ( FSServer *svr, FSErrorEvent *event );
-extern char * _FSAllocScratch ( FSServer *svr, unsigned long nbytes );
-extern void _FSFreeQ ( void );
-extern int _FSGetHostname ( char *buf, int maxlen );
-
-extern FSErrorHandler FSSetErrorHandler ( FSErrorHandler handler );
-extern FSIOErrorHandler FSSetIOErrorHandler ( FSIOErrorHandler handler );
-
-#ifndef BUFSIZE
-#define BUFSIZE 2048 /* FS output buffer size. */
-#endif
-
-/*
- * server flags
- */
-#define FSlibServerIOError (1L << 0)
-#define FSlibServerClosing (1L << 1)
-
-/* Need to start requests on 64 bit word boundries
- * on a CRAY computer so add a NoOp (127) if needed.
- * A character pointer on a CRAY computer will be non-zero
- * after shifting right 61 bits of it is not pointing to
- * a word boundary.
- */
-
-#ifdef WORD64
-#define WORD64ALIGN if ((long)svr->bufptr >> 61) {\
- svr->last_req = svr->bufptr;\
- *(svr->bufptr) = FS_Noop;\
- *(svr->bufptr+1) = 0;\
- *(svr->bufptr+2) = 0;\
- *(svr->bufptr+3) = 1;\
- svr->request += 1;\
- svr->bufptr += 4;\
- }
-#else /* else does not require alignment on 64-bit
- * boundaries */
-#define WORD64ALIGN
-#endif /* WORD64 */
-
-/*
- * GetReq - Get the next avilable FS request packet in the buffer and
- * return it.
- *
- * "name" is the name of the request, e.g. InternAtom, OpenFont, etc.
- * "req" is the name of the request pointer.
- *
- */
-
-#if !defined(UNIXCPP) || defined(ANSICPP)
-#define GetReq(name, req) \
- WORD64ALIGN\
- if ((svr->bufptr + SIZEOF(fs##name##Req)) > svr->bufmax)\
- _FSFlush(svr);\
- req = (fs##name##Req *)(svr->last_req = svr->bufptr);\
- req->reqType = FS_##name;\
- req->length = (SIZEOF(fs##name##Req))>>2;\
- svr->bufptr += SIZEOF(fs##name##Req);\
- svr->request++
-
-#else /* non-ANSI C uses empty comment instead of
- * "##" for token concatenation */
-#define GetReq(name, req) \
- WORD64ALIGN\
- if ((svr->bufptr + SIZEOF(fs/**/name/**/Req)) > svr->bufmax)\
- _FSFlush(svr);\
- req = (fs/**/name/**/Req *)(svr->last_req = svr->bufptr);\
- req->reqType = FS_/**/name;\
- req->length = (SIZEOF(fs/**/name/**/Req))>>2;\
- svr->bufptr += SIZEOF(fs/**/name/**/Req);\
- svr->request++
-#endif
-
-/* GetReqExtra is the same as GetReq, but allocates "n" additional
- bytes after the request. "n" must be a multiple of 4! */
-
-#if !defined(UNIXCPP) || defined(ANSICPP)
-#define GetReqExtra(name, n, req) \
- WORD64ALIGN\
- if ((svr->bufptr + SIZEOF(fs##name##Req) + n) > svr->bufmax)\
- _FSFlush(svr);\
- req = (fs##name##Req *)(svr->last_req = svr->bufptr);\
- req->reqType = FS_##name;\
- req->length = (SIZEOF(fs##name##Req) + n)>>2;\
- svr->bufptr += SIZEOF(fs##name##Req) + n;\
- svr->request++
-#else
-#define GetReqExtra(name, n, req) \
- WORD64ALIGN\
- if ((svr->bufptr + SIZEOF(fs/**/name/**/Req) + n) > svr->bufmax)\
- _FSFlush(svr);\
- req = (fs/**/name/**/Req *)(svr->last_req = svr->bufptr);\
- req->reqType = FS_/**/name;\
- req->length = (SIZEOF(fs/**/name/**/Req) + n)>>2;\
- svr->bufptr += SIZEOF(fs/**/name/**/Req) + n;\
- svr->request++
-#endif
-
-
-/*
- * GetResReq is for those requests that have a resource ID
- * (Window, Pixmap, GContext, etc.) as their single argument.
- * "rid" is the name of the resource.
- */
-
-#if !defined(UNIXCPP) || defined(ANSICPP)
-#define GetResReq(name, rid, req) \
- WORD64ALIGN\
- if ((svr->bufptr + SIZEOF(fsResourceReq)) > svr->bufmax)\
- _FSFlush(svr);\
- req = (fsResourceReq *) (svr->last_req = svr->bufptr);\
- req->reqType = FS_##name;\
- req->length = 2;\
- req->id = (rid);\
- svr->bufptr += SIZEOF(fsResourceReq);\
- svr->request++
-#else
-#define GetResReq(name, rid, req) \
- WORD64ALIGN\
- if ((svr->bufptr + SIZEOF(fsResourceReq)) > svr->bufmax)\
- _FSFlush(svr);\
- req = (fsResourceReq *) (svr->last_req = svr->bufptr);\
- req->reqType = FS_/**/name;\
- req->length = 2;\
- req->id = (rid);\
- svr->bufptr += SIZEOF(fsResourceReq);\
- svr->request++
-#endif
-
-/*
- * GetEmptyReq is for those requests that have no arguments
- * at all.
- */
-
-#if !defined(UNIXCPP) || defined(ANSICPP)
-#define GetEmptyReq(name, req) \
- WORD64ALIGN\
- if ((svr->bufptr + SIZEOF(fsReq)) > svr->bufmax)\
- _FSFlush(svr);\
- req = (fsReq *) (svr->last_req = svr->bufptr);\
- req->reqType = FS_##name;\
- req->length = 1;\
- svr->bufptr += SIZEOF(fsReq);\
- svr->request++
-#else
-#define GetEmptyReq(name, req) \
- WORD64ALIGN\
- if ((svr->bufptr + SIZEOF(fsReq)) > svr->bufmax)\
- _FSFlush(svr);\
- req = (fsReq *) (svr->last_req = svr->bufptr);\
- req->reqType = FS_/**/name;\
- req->length = 1;\
- svr->bufptr += SIZEOF(fsReq);\
- svr->request++
-#endif
-
-#define SyncHandle() \
- if (svr->synchandler) (*svr->synchandler)(svr)
-
-/*
- * Data - Place data in the buffer and pad the end to provide
- * 32 bit word alignment. Transmit if the buffer fills.
- *
- * "svr" is a pointer to a Display.
- * "data" is a pinter to a data buffer.
- * "len" is the length of the data buffer.
- * we can presume buffer less than 2^16 bytes, so bcopy can be used safely.
- */
-
-#ifdef DataRoutineIsProcedure
-extern void Data();
-
-#else
-#define Data(svr, data, len) \
- if (svr->bufptr + (len) <= svr->bufmax) {\
- bcopy(data, svr->bufptr, (int)len);\
- svr->bufptr += ((len) + 3) & ~3;\
- } else\
- _FSSend(svr, data, len)
-#endif /* DataRoutineIsProcedure */
-
-
-/* Allocate bytes from the buffer. No padding is done, so if
- * the length is not a multiple of 4, the caller must be
- * careful to leave the buffer aligned after sending the
- * current request.
- *
- * "type" is the type of the pointer being assigned to.
- * "ptr" is the pointer being assigned to.
- * "n" is the number of bytes to allocate.
- *
- * Example:
- * xTextElt *elt;
- * BufAlloc (xTextElt *, elt, nbytes)
- */
-
-#define BufAlloc(type, ptr, n) \
- if (svr->bufptr + (n) > svr->bufmax) \
- _FSFlush (svr); \
- ptr = (type) svr->bufptr; \
- svr->bufptr += (n);
-
-/*
- * provide emulation routines for smaller architectures
- */
-#ifndef WORD64
-#define Data16(dpy, data, len) Data((dpy), (char *)(data), (len))
-#define Data32(dpy, data, len) Data((dpy), (char *)(data), (len))
-#define _FSRead16Pad(dpy, data, len) _FSReadPad((dpy), (char *)(data), (len))
-#define _FSRead16(dpy, data, len) _FSRead((dpy), (char *)(data), (len))
-#define _FSRead32(dpy, data, len) _FSRead((dpy), (char *)(data), (len))
-#endif /* not WORD64 */
-
-#define PackData16(dpy,data,len) Data16 (dpy, data, len)
-#define PackData32(dpy,data,len) Data32 (dpy, data, len)
-
-#define min(a,b) (((a) < (b)) ? (a) : (b))
-#define max(a,b) (((a) > (b)) ? (a) : (b))
-
-#ifdef MUSTCOPY
-/* a little bit of magic */
-#define OneDataCard32(svr,dstaddr,srcvar) \
- { svr->bufptr -= 4; Data32 (svr, (char *) &(srcvar), 4); }
-
-#define STARTITERATE(tpvar,type,start,endcond,decr) \
- { register char *cpvar; \
- for (cpvar = (char *) start; endcond; cpvar = NEXTPTR(cpvar,type), decr) { \
- type dummy; bcopy (cpvar, (char *) &dummy, SIZEOF(type)); \
- tpvar = (type *) cpvar;
-#define ENDITERATE }}
-
-#else
-
-/* srcvar must be a variable for large architecture version */
-#define OneDataCard32(svr,dstaddr,srcvar) \
- { *(unsigned long *)(dstaddr) = (srcvar); }
-
-#define STARTITERATE(tpvar,type,start,endcond,decr) \
- for (tpvar = (type *) start; endcond; tpvar++, decr) {
-#define ENDITERATE }
-#endif /* MUSTCOPY - used machines whose C structs
- * don't line up with proto */
-
-
-#if !defined(UNIXCPP) || defined(ANSICPP)
-#define FSCat(x,y) x##_##y
-#else
-#define FSCat(x,y) x/**/_/**/y
-#endif
-
-/* copy XCharInfo parts of a protocol reply into a FSXCharInfo */
-
-#define FSUnpack_XCharInfo(packet, structure) \
- (structure)->left = FSCat(packet,left); \
- (structure)->right = FSCat(packet,right); \
- (structure)->width = FSCat(packet,width); \
- (structure)->ascent = FSCat(packet,ascent); \
- (structure)->descent = FSCat(packet,descent); \
- (structure)->attributes = FSCat(packet,attributes)
-
-
-/* copy XFontInfoHeader parts of a protocol reply into a FSXFontInfoHeader */
-
-#define FSUnpack_XFontInfoHeader(packet, structure, serverversion) \
- (structure)->flags = (packet)->font_header_flags; \
- (structure)->draw_direction = (packet)->font_header_draw_direction; \
- \
- if (serverversion > 1) { \
- (structure)->char_range.min_char.high = (packet)->font_hdr_char_range_min_char_high; \
- (structure)->char_range.min_char.low = (packet)->font_hdr_char_range_min_char_low; \
- (structure)->char_range.max_char.high = (packet)->font_hdr_char_range_max_char_high; \
- (structure)->char_range.max_char.low = (packet)->font_hdr_char_range_max_char_low; \
- (structure)->default_char.high = (packet)->font_header_default_char_high; \
- (structure)->default_char.low = (packet)->font_header_default_char_low; \
- } else { \
- (structure)->char_range.min_char.high = (packet)->font_hdr_char_range_min_char_low; \
- (structure)->char_range.min_char.low = (packet)->font_hdr_char_range_min_char_high; \
- (structure)->char_range.max_char.high = (packet)->font_hdr_char_range_max_char_low; \
- (structure)->char_range.max_char.low = (packet)->font_hdr_char_range_max_char_high; \
- (structure)->default_char.high = (packet)->font_header_default_char_low; \
- (structure)->default_char.low = (packet)->font_header_default_char_high; \
- } \
- \
- (structure)->font_ascent = (packet)->font_header_font_ascent; \
- (structure)->font_descent = (packet)->font_header_font_descent; \
- \
- FSUnpack_XCharInfo((packet)->font_header_min_bounds, &(structure)->min_bounds); \
- FSUnpack_XCharInfo((packet)->font_header_max_bounds, &(structure)->max_bounds)
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