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authorMike Gabriel <mike.gabriel@das-netzwerkteam.de>2015-02-02 15:02:49 +0100
committerMike Gabriel <mike.gabriel@das-netzwerkteam.de>2015-02-02 15:02:49 +0100
commitb16b9e4656e7199c2aec74a4c8ebc7a875d3ba73 (patch)
tree4361edef0d42d5bf5ac984ef72b4fac35426eae7 /nx-X11/programs/Xserver/hw/xfree86/os-support/usl/usl_xqueue.c
parent0d5a83e986f39982c0924652a3662e60b1f23162 (diff)
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massive reduction of unneeded files
Diffstat (limited to 'nx-X11/programs/Xserver/hw/xfree86/os-support/usl/usl_xqueue.c')
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diff --git a/nx-X11/programs/Xserver/hw/xfree86/os-support/usl/usl_xqueue.c b/nx-X11/programs/Xserver/hw/xfree86/os-support/usl/usl_xqueue.c
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@@ -1,360 +0,0 @@
-/* $XdotOrg: xc/programs/Xserver/hw/xfree86/os-support/usl/usl_xqueue.c,v 1.3 2005/11/10 02:41:20 jkj Exp $ */
-/*
- * Copyright 2005 by Kean Johnston <jkj@sco.com>
- * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany
- * Copyright 1993-1999 by The XFree86 Project, Inc.
- *
- * 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 name of the copyright holders not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission. The copyright holders make no
- * representations about the suitability of this software for any purpose.
- * It is provided "as is" without express or implied warranty.
- *
- * THE COPYRIGHT HOLDERS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL THE COPYRIGHT HOLDERS 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.
- *
- */
-/* $XConsortium$ */
-
-#include "X.h"
-#include "compiler.h"
-
-#include "xf86.h"
-#include "xf86Priv.h"
-#include "xf86_OSlib.h"
-#include "xf86Xinput.h"
-#include "xf86OSmouse.h"
-#include "xf86OSKbd.h"
-#include "usl_xqueue.h"
-
-#ifdef XKB
-#include "inputstr.h"
-#include <X11/extensions/XKB.h>
-#include <X11/extensions/XKBstr.h>
-#include <X11/extensions/XKBsrv.h>
-extern Bool noXkbExtension;
-#endif
-
-#include "xf86Xinput.h"
-#include "mipointer.h"
-
-#if !defined(XQ_WHEEL)
-# define XQ_WHEEL 4
-#endif
-
-/*
- * Implementation notes
- *
- * This code is based on a mixture of the original XFree86 sysv/xqueue.c
- * and information gathered from the SCO X server code (no actual code
- * was used, just the principles).
- *
- * The XFree86 XQUEUE code went to some considerable lengths to implement
- * what it calls "asynchronous XQUEUE". This involved creating a pipe,
- * and writing to that pipe each time an XQUEUE signal is received. The
- * one end of that pipe was then added to the list of selectable file
- * descriptors with AddEnabledDevice(). I completely fail to see the need
- * for this, and this code does not implement that mechanism. The server
- * will be interrupted anyway by the XQUEUE driver, so whether we pull the
- * events off the queue at the time we receive the signal or whether we
- * write to a pipe and then have the main select() loop stop and call us,
- * it makes no difference I can fathom.
- *
- * The code also differs from the original XFree86 code in that it maintains
- * local variables for the number of devices initialized. The original code
- * stored that information in the private data pointer of the mouse structure,
- * but this same code is used for both the keyboard and the mouse, so that
- * was changed.
- *
- * Part of the difficulty in dealing with XQUEUE is that it is a single
- * interface to two devices. The recent changes in XFree86/Xorg try to
- * treat the mouse and keyboard as discrete devices, and the code is
- * structured in such a way that they should be able to be independently
- * opened and closed. But we can't do that with XQUEUE, so we have to
- * centralize XQUEUE access here in this module.
- */
-
-static xqEventQueue *xqQaddr = NULL;
-static int xqSigEnable = 1;
-static int xqEnableCount = 0;
-static struct kd_quemode xqMode;
-
-/*
- * These two pointers are set when the keyboard/mouse handler procs
- * are called to turn them on or off. This is so that we can call the
- * correct PostEvent for the device.
- */
-static InputInfoPtr xqMouse = NULL;
-static InputInfoPtr xqKeyboard = NULL;
-
-static void XqSignalHandler (int signo);
-
-/*
- * Private functions
- */
-static void
-XqReset (void)
-{
- if (xqEnableCount > 0) {
- xqQaddr->xq_head = xqQaddr->xq_tail;
- xqQaddr->xq_sigenable = xqSigEnable;
- }
-}
-
-#ifdef NOTNEEDED
-static void
-XqLock (void)
-{
- xqSigEnable = 0;
- if (xqEnableCount > 0) {
- xqQaddr->xq_sigenable = xqSigEnable;
- }
-}
-
-static void
-XqUnlock (void)
-{
- xqSigEnable = 1;
- if (xqEnableCount > 0) {
- xqQaddr->xq_sigenable = xqSigEnable;
- }
-}
-#endif /* NOTNEEDED */
-
-/*
- * Since this code is shared between two devices, we need to keep track
- * of how many times we've been enabled or disabled. For example, if the
- * keyboard has been turned off, but the mouse hasn't, then we do not
- * want the whole queue off. Only when both devices are turned off do we
- * actually disable Xqueue mode. When either device is turned on, we
- * enable it.
- */
-static int
-XqEnable (InputInfoPtr pInfo)
-{
- struct sigaction xqsig;
- static int msefd = -1;
-
- if (msefd == -1) {
- msefd = open ("/dev/mouse", O_RDONLY | O_NONBLOCK);
-#if 0
- msefd = open ("/dev/mouse", O_RDONLY | O_NONBLOCK | O_NOCTTY);
- if (msefd < 0) {
- /*
- * Try giving it a controlling tty
- */
- msefd = open (ttyname(xf86Info.consoleFd), O_RDWR | O_NONBLOCK);
- if (msefd >= 0)
- close (msefd);
- msefd = open ("/dev/mouse", O_RDONLY | O_NONBLOCK | O_NOCTTY);
- if (msefd < 0)
- sleep(2);
- }
-#endif
- }
-
- if (msefd < 0) {
- if (xf86GetAllowMouseOpenFail()) {
- ErrorF("%s: cannot open /dev/mouse (%s)\n",
- ttyname(xf86Info.consoleFd), strerror(errno));
- } else {
- sleep(5);
- FatalError ("%s: cannot open /dev/mouse (%s)\n",
- ttyname(xf86Info.consoleFd), strerror(errno));
- }
- }
-
- if (xqEnableCount++ == 0) {
- xqMode.qaddr = 0;
- ioctl (xf86Info.consoleFd, KDQUEMODE, NULL);
-
- /*
- * Note: We need to make sure the signal is armed before we enable
- * XQUEUE mode, so that if we get events immediately after the ioctl
- * we dont have an unhandled signal coming to the Xserver.
- * Also note that we use sigaction, so that we do not have to re-arm
- * the signal every time it is delivered, which just slows things
- * down (setting a signal is a fairly expensive operation).
- */
-
- xqsig.sa_handler = XqSignalHandler;
- sigfillset (&xqsig.sa_mask);
- xqsig.sa_flags = 0;
- sigaction (SIGUSR2, &xqsig, NULL);
-
- /*
- * This is a fairly large queue size. Since we are reacting to events
- * asynchronously, its best for performance if we deal with as many
- * events as possible, and high resolution mice generate a lot of
- * events.
- */
- xqMode.qsize = 64;
- xqMode.signo = SIGUSR2;
- xqMode.qaddr = 0;
- if (ioctl (xf86Info.consoleFd, KDQUEMODE, &xqMode) < 0) {
- xf86Msg (X_ERROR, "%s: could not set XQUEUE mode (%s)", pInfo->name,
- strerror(errno));
- xqEnableCount--;
-
- xqsig.sa_handler = SIG_DFL;
- sigfillset (&xqsig.sa_mask);
- xqsig.sa_flags = 0;
- sigaction (SIGUSR2, &xqsig, NULL);
-
- return !Success;
- }
-
- /*
- * We're in business. The workstation is now in XQUEUE mode.
- */
- xqQaddr = (xqEventQueue *)xqMode.qaddr;
- xqQaddr->xq_sigenable = 0; /* LOCK */
- nap(500);
- XqReset();
- }
- return Success;
-}
-
-static int
-XqDisable (InputInfoPtr pInfo)
-{
- struct sigaction xqsig;
-
- if (xqEnableCount-- == 1) {
- xqQaddr->xq_sigenable = 0; /* LOCK */
-
- if (ioctl (xf86Info.consoleFd, KDQUEMODE, NULL) < 0) {
- xf86Msg (X_ERROR, "%s: could not unset XQUEUE mode (%s)", pInfo->name,
- strerror(errno));
- xqEnableCount++;
- return !Success;
- }
-
- xqsig.sa_handler = SIG_DFL;
- sigfillset (&xqsig.sa_mask);
- xqsig.sa_flags = 0;
- sigaction (SIGUSR2, &xqsig, NULL);
- }
-
- return Success;
-}
-
-/*
- * XQUEUE signal handler. This is what goes through the list of events
- * we've already received and dispatches them to either the keyboard or
- * mouse event poster.
- */
-static void
-XqSignalHandler (int signo)
-{
- xqEvent *xqEvents = xqQaddr->xq_events;
- int xqHead = xqQaddr->xq_head;
- xEvent xE;
- MouseDevPtr pMse = NULL;
- KbdDevPtr pKbd = NULL;
- signed char dx, dy;
-
- if (xqMouse)
- pMse = (MouseDevPtr)xqMouse->private;
- if (xqKeyboard)
- pKbd = (KbdDevPtr)xqKeyboard->private;
-
- while (xqHead != xqQaddr->xq_tail) {
-
- switch (xqEvents[xqHead].xq_type) {
- case XQ_MOTION:
- dx = (signed char)xqEvents[xqHead].xq_x;
- dy = (signed char)xqEvents[xqHead].xq_y;
- if (pMse)
- pMse->PostEvent(xqMouse, ~(xqEvents[xqHead].xq_code) & 0x07,
- (int)dx, (int)dy, 0, 0);
- break;
-
- case XQ_BUTTON:
- if (pMse)
- pMse->PostEvent(xqMouse, ~(xqEvents[xqHead].xq_code) & 0x07,
- 0, 0, 0, 0);
- break;
-
- case XQ_WHEEL:
- if (pMse) {
- int wbut = pMse->lastButtons, dz;
- if (xqEvents[xqHead].xq_code == 1)
- dz = 1;
- else
- dz = -1;
- pMse->PostEvent(xqMouse, wbut, 0, 0, dz, 0);
- }
- break;
-
- case XQ_KEY:
- if (pKbd)
- pKbd->PostEvent(xqKeyboard, xqEvents[xqHead].xq_code & 0x7f,
- xqEvents[xqHead].xq_code & 0x80 ? FALSE : TRUE);
- break;
-
- default:
- xf86Msg(X_WARNING, "XQUEUE: unknown event type %d\n",
- xqEvents[xqHead].xq_type);
- break;
- }
-
- xqHead++;
- if (xqHead == xqQaddr->xq_size)
- xqHead = 0;
- xf86Info.inputPending = TRUE;
- }
-
- XqReset();
-}
-
-/*
- * Public functions
- */
-int
-XqMseOnOff (InputInfoPtr pInfo, int on)
-{
- if (on) {
- if (xqMouse) {
- if (xqMouse != pInfo)
- xf86Msg(X_WARNING, "XqMseOnOff: mouse pointer structure changed!\n");
- xqMouse = pInfo;
- } else {
- xqMouse = pInfo;
- return XqEnable(pInfo);
- }
- } else {
- xqMouse = NULL;
- return XqDisable(pInfo);
- }
- return Success;
-}
-
-int
-XqKbdOnOff (InputInfoPtr pInfo, int on)
-{
- if (on) {
- if (xqKeyboard) {
- if (xqKeyboard != pInfo)
- xf86Msg(X_WARNING, "XqKbdOnOff: keyboard pointer structure changed!\n");
- xqKeyboard = pInfo;
- } else {
- xqKeyboard = pInfo;
- return XqEnable(pInfo);
- }
- } else {
- xqKeyboard = NULL;
- return XqDisable(pInfo);
- }
- return Success;
-}
-