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@@ -1,701 +0,0 @@
-/* $XFree86: xc/programs/Xserver/os/WaitFor.c,v 3.42 2003/10/16 01:33:35 dawes Exp $ */
-/***********************************************************
-
-Copyright 1987, 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.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
- All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its
-documentation for any purpose and without fee is hereby granted,
-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 Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-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.
-
-******************************************************************/
-
-/* $Xorg: WaitFor.c,v 1.4 2001/02/09 02:05:22 xorgcvs Exp $ */
-
-/*****************************************************************
- * OS Dependent input routines:
- *
- * WaitForSomething
- * TimerForce, TimerSet, TimerCheck, TimerFree
- *
- *****************************************************************/
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#ifdef WIN32
-#include <X11/Xwinsock.h>
-#endif
-#include <X11/Xos.h> /* for strings, fcntl, time */
-#include <errno.h>
-#include <stdio.h>
-#include <X11/X.h>
-#include "misc.h"
-
-#ifdef __UNIXOS2__
-#define select(n,r,w,x,t) os2PseudoSelect(n,r,w,x,t)
-#endif
-#include "osdep.h"
-#include <X11/Xpoll.h>
-#include "dixstruct.h"
-#include "opaque.h"
-#ifdef DPMSExtension
-#include "dpmsproc.h"
-#endif
-
-#ifdef WIN32
-/* Error codes from windows sockets differ from fileio error codes */
-#undef EINTR
-#define EINTR WSAEINTR
-#undef EINVAL
-#define EINVAL WSAEINVAL
-#undef EBADF
-#define EBADF WSAENOTSOCK
-/* Windows select does not set errno. Use GetErrno as wrapper for
- WSAGetLastError */
-#define GetErrno WSAGetLastError
-#else
-/* This is just a fallback to errno to hide the differences between unix and
- Windows in the code */
-#define GetErrno() errno
-#endif
-
-/* modifications by raphael */
-int
-mffs(fd_mask mask)
-{
- int i;
-
- if (!mask) return 0;
- i = 1;
- while (!(mask & 1))
- {
- i++;
- mask >>= 1;
- }
- return i;
-}
-
-#ifdef DPMSExtension
-#define DPMS_SERVER
-#include <X11/extensions/dpms.h>
-#endif
-
-#ifdef XTESTEXT1
-/*
- * defined in xtestext1dd.c
- */
-extern int playback_on;
-#endif /* XTESTEXT1 */
-
-struct _OsTimerRec {
- OsTimerPtr next;
- CARD32 expires;
- OsTimerCallback callback;
- pointer arg;
-};
-
-static void DoTimer(OsTimerPtr timer, CARD32 now, OsTimerPtr *prev);
-static OsTimerPtr timers = NULL;
-
-/*****************
- * WaitForSomething:
- * Make the server suspend until there is
- * 1. data from clients or
- * 2. input events available or
- * 3. ddx notices something of interest (graphics
- * queue ready, etc.) or
- * 4. clients that have buffered replies/events are ready
- *
- * If the time between INPUT events is
- * greater than ScreenSaverTime, the display is turned off (or
- * saved, depending on the hardware). So, WaitForSomething()
- * has to handle this also (that's why the select() has a timeout.
- * For more info on ClientsWithInput, see ReadRequestFromClient().
- * pClientsReady is an array to store ready client->index values into.
- *****************/
-
-int
-WaitForSomething(int *pClientsReady)
-{
- int i;
- struct timeval waittime, *wt;
- INT32 timeout = 0;
- fd_set clientsReadable;
- fd_set clientsWritable;
- int curclient;
- int selecterr;
- int nready;
- fd_set devicesReadable;
- CARD32 now = 0;
-#ifdef SMART_SCHEDULE
- Bool someReady = FALSE;
-#endif
-
- FD_ZERO(&clientsReadable);
-
- /* We need a while loop here to handle
- crashed connections and the screen saver timeout */
- while (1)
- {
- /* deal with any blocked jobs */
- if (workQueue)
- ProcessWorkQueue();
- if (XFD_ANYSET (&ClientsWithInput))
- {
-#ifdef SMART_SCHEDULE
- if (!SmartScheduleDisable)
- {
- someReady = TRUE;
- waittime.tv_sec = 0;
- waittime.tv_usec = 0;
- wt = &waittime;
- }
- else
-#endif
- {
- XFD_COPYSET (&ClientsWithInput, &clientsReadable);
- break;
- }
- }
-#ifdef SMART_SCHEDULE
- if (someReady)
- {
- XFD_COPYSET(&AllSockets, &LastSelectMask);
- XFD_UNSET(&LastSelectMask, &ClientsWithInput);
- }
- else
- {
-#endif
- wt = NULL;
- if (timers)
- {
- now = GetTimeInMillis();
- timeout = timers->expires - now;
- if (timeout < 0)
- timeout = 0;
- waittime.tv_sec = timeout / MILLI_PER_SECOND;
- waittime.tv_usec = (timeout % MILLI_PER_SECOND) *
- (1000000 / MILLI_PER_SECOND);
- wt = &waittime;
- }
- XFD_COPYSET(&AllSockets, &LastSelectMask);
-#ifdef SMART_SCHEDULE
- }
- SmartScheduleIdle = TRUE;
-#endif
- BlockHandler((pointer)&wt, (pointer)&LastSelectMask);
- if (NewOutputPending)
- FlushAllOutput();
-#ifdef XTESTEXT1
- /* XXX how does this interact with new write block handling? */
- if (playback_on) {
- wt = &waittime;
- XTestComputeWaitTime (&waittime);
- }
-#endif /* XTESTEXT1 */
- /* keep this check close to select() call to minimize race */
- if (dispatchException)
- i = -1;
- else if (AnyClientsWriteBlocked)
- {
- XFD_COPYSET(&ClientsWriteBlocked, &clientsWritable);
- i = Select (MaxClients, &LastSelectMask, &clientsWritable, NULL, wt);
- }
- else
- {
- i = Select (MaxClients, &LastSelectMask, NULL, NULL, wt);
- }
- selecterr = GetErrno();
- WakeupHandler(i, (pointer)&LastSelectMask);
-#ifdef XTESTEXT1
- if (playback_on) {
- i = XTestProcessInputAction (i, &waittime);
- }
-#endif /* XTESTEXT1 */
-#ifdef SMART_SCHEDULE
- if (i >= 0)
- {
- SmartScheduleIdle = FALSE;
- SmartScheduleIdleCount = 0;
- if (SmartScheduleTimerStopped)
- (void) SmartScheduleStartTimer ();
- }
-#endif
- if (i <= 0) /* An error or timeout occurred */
- {
- if (dispatchException)
- return 0;
- if (i < 0)
- {
- if (selecterr == EBADF) /* Some client disconnected */
- {
- CheckConnections ();
- if (! XFD_ANYSET (&AllClients))
- return 0;
- }
- else if (selecterr == EINVAL)
- {
- FatalError("WaitForSomething(): select: errno=%d\n",
- selecterr);
- }
- else if (selecterr != EINTR)
- {
- ErrorF("WaitForSomething(): select: errno=%d\n",
- selecterr);
- }
- }
-#ifdef SMART_SCHEDULE
- else if (someReady)
- {
- /*
- * If no-one else is home, bail quickly
- */
- XFD_COPYSET(&ClientsWithInput, &LastSelectMask);
- XFD_COPYSET(&ClientsWithInput, &clientsReadable);
- break;
- }
-#endif
- if (*checkForInput[0] != *checkForInput[1])
- return 0;
-
- if (timers)
- {
- int expired = 0;
- now = GetTimeInMillis();
- if ((int) (timers->expires - now) <= 0)
- expired = 1;
-
- while (timers && (int) (timers->expires - now) <= 0)
- DoTimer(timers, now, &timers);
-
- if (expired)
- return 0;
- }
- }
- else
- {
- fd_set tmp_set;
-
- if (*checkForInput[0] == *checkForInput[1]) {
- if (timers)
- {
- int expired = 0;
- now = GetTimeInMillis();
- if ((int) (timers->expires - now) <= 0)
- expired = 1;
-
- while (timers && (int) (timers->expires - now) <= 0)
- DoTimer(timers, now, &timers);
-
- if (expired)
- return 0;
- }
- }
-#ifdef SMART_SCHEDULE
- if (someReady)
- XFD_ORSET(&LastSelectMask, &ClientsWithInput, &LastSelectMask);
-#endif
- if (AnyClientsWriteBlocked && XFD_ANYSET (&clientsWritable))
- {
- NewOutputPending = TRUE;
- XFD_ORSET(&OutputPending, &clientsWritable, &OutputPending);
- XFD_UNSET(&ClientsWriteBlocked, &clientsWritable);
- if (! XFD_ANYSET(&ClientsWriteBlocked))
- AnyClientsWriteBlocked = FALSE;
- }
-
- XFD_ANDSET(&devicesReadable, &LastSelectMask, &EnabledDevices);
- XFD_ANDSET(&clientsReadable, &LastSelectMask, &AllClients);
- XFD_ANDSET(&tmp_set, &LastSelectMask, &WellKnownConnections);
- if (XFD_ANYSET(&tmp_set))
- QueueWorkProc(EstablishNewConnections, NULL,
- (pointer)&LastSelectMask);
-#ifdef DPMSExtension
- if (XFD_ANYSET (&devicesReadable) && (DPMSPowerLevel != DPMSModeOn))
- DPMSSet(DPMSModeOn);
-#endif
- if (XFD_ANYSET (&devicesReadable) || XFD_ANYSET (&clientsReadable))
- break;
-#ifdef WIN32
- /* Windows keyboard and mouse events are added to the input queue
- in Block- and WakupHandlers. There is no device to check if
- data is ready. So check here if new input is available */
- if (*checkForInput[0] != *checkForInput[1])
- return 0;
-#endif
- }
- }
-
- nready = 0;
- if (XFD_ANYSET (&clientsReadable))
- {
-#ifndef WIN32
- for (i=0; i<howmany(XFD_SETSIZE, NFDBITS); i++)
- {
- int highest_priority = 0;
-
- while (clientsReadable.fds_bits[i])
- {
- int client_priority, client_index;
-
- curclient = ffs (clientsReadable.fds_bits[i]) - 1;
- client_index = /* raphael: modified */
- ConnectionTranslation[curclient + (i * (sizeof(fd_mask) * 8))];
-#else
- int highest_priority = 0;
- fd_set savedClientsReadable;
- XFD_COPYSET(&clientsReadable, &savedClientsReadable);
- for (i = 0; i < XFD_SETCOUNT(&savedClientsReadable); i++)
- {
- int client_priority, client_index;
-
- curclient = XFD_FD(&savedClientsReadable, i);
- client_index = GetConnectionTranslation(curclient);
-#endif
-#ifdef XSYNC
- /* We implement "strict" priorities.
- * Only the highest priority client is returned to
- * dix. If multiple clients at the same priority are
- * ready, they are all returned. This means that an
- * aggressive client could take over the server.
- * This was not considered a big problem because
- * aggressive clients can hose the server in so many
- * other ways :)
- */
- client_priority = clients[client_index]->priority;
- if (nready == 0 || client_priority > highest_priority)
- {
- /* Either we found the first client, or we found
- * a client whose priority is greater than all others
- * that have been found so far. Either way, we want
- * to initialize the list of clients to contain just
- * this client.
- */
- pClientsReady[0] = client_index;
- highest_priority = client_priority;
- nready = 1;
- }
- /* the following if makes sure that multiple same-priority
- * clients get batched together
- */
- else if (client_priority == highest_priority)
-#endif
- {
- pClientsReady[nready++] = client_index;
- }
-#ifndef WIN32
- clientsReadable.fds_bits[i] &= ~(((fd_mask)1L) << curclient);
- }
-#else
- FD_CLR(curclient, &clientsReadable);
-#endif
- }
- }
- return nready;
-}
-
-#if 0
-/*
- * This is not always a macro.
- */
-ANYSET(FdMask *src)
-{
- int i;
-
- for (i=0; i<mskcnt; i++)
- if (src[ i ])
- return (TRUE);
- return (FALSE);
-}
-#endif
-
-
-static void
-DoTimer(OsTimerPtr timer, CARD32 now, OsTimerPtr *prev)
-{
- CARD32 newTime;
-
- *prev = timer->next;
- timer->next = NULL;
- newTime = (*timer->callback)(timer, now, timer->arg);
- if (newTime)
- TimerSet(timer, 0, newTime, timer->callback, timer->arg);
-}
-
-OsTimerPtr
-TimerSet(OsTimerPtr timer, int flags, CARD32 millis,
- OsTimerCallback func, pointer arg)
-{
- register OsTimerPtr *prev;
- CARD32 now = GetTimeInMillis();
-
- if (!timer)
- {
- timer = (OsTimerPtr)xalloc(sizeof(struct _OsTimerRec));
- if (!timer)
- return NULL;
- }
- else
- {
- for (prev = &timers; *prev; prev = &(*prev)->next)
- {
- if (*prev == timer)
- {
- *prev = timer->next;
- if (flags & TimerForceOld)
- (void)(*timer->callback)(timer, now, timer->arg);
- break;
- }
- }
- }
- if (!millis)
- return timer;
- if (!(flags & TimerAbsolute))
- millis += now;
- timer->expires = millis;
- timer->callback = func;
- timer->arg = arg;
- if ((int) (millis - now) <= 0)
- {
- timer->next = NULL;
- millis = (*timer->callback)(timer, now, timer->arg);
- if (!millis)
- return timer;
- }
- for (prev = &timers;
- *prev && (int) ((*prev)->expires - millis) <= 0;
- prev = &(*prev)->next)
- ;
- timer->next = *prev;
- *prev = timer;
- return timer;
-}
-
-Bool
-TimerForce(OsTimerPtr timer)
-{
- OsTimerPtr *prev;
-
- for (prev = &timers; *prev; prev = &(*prev)->next)
- {
- if (*prev == timer)
- {
- DoTimer(timer, GetTimeInMillis(), prev);
- return TRUE;
- }
- }
- return FALSE;
-}
-
-
-void
-TimerCancel(OsTimerPtr timer)
-{
- OsTimerPtr *prev;
-
- if (!timer)
- return;
- for (prev = &timers; *prev; prev = &(*prev)->next)
- {
- if (*prev == timer)
- {
- *prev = timer->next;
- break;
- }
- }
-}
-
-void
-TimerFree(OsTimerPtr timer)
-{
- if (!timer)
- return;
- TimerCancel(timer);
- xfree(timer);
-}
-
-void
-TimerCheck(void)
-{
- CARD32 now = GetTimeInMillis();
-
- while (timers && (int) (timers->expires - now) <= 0)
- DoTimer(timers, now, &timers);
-}
-
-void
-TimerInit(void)
-{
- OsTimerPtr timer;
-
- while ((timer = timers))
- {
- timers = timer->next;
- xfree(timer);
- }
-}
-
-static CARD32
-ScreenSaverTimeoutExpire(OsTimerPtr timer,CARD32 now,pointer arg)
-{
- INT32 timeout = now - lastDeviceEventTime.milliseconds;
-
- if (timeout < ScreenSaverTime) {
- return ScreenSaverTime - timeout;
- }
-
- ResetOsBuffers(); /* not ideal, but better than nothing */
- SaveScreens(SCREEN_SAVER_ON, ScreenSaverActive);
-
-#ifdef DPMSExtension
- if (ScreenSaverInterval > 0 && DPMSPowerLevel == DPMSModeOn)
-#else
- if (ScreenSaverInterval > 0)
-#endif /* DPMSExtension */
- return ScreenSaverInterval;
-
- return 0;
-}
-
-static OsTimerPtr ScreenSaverTimer = NULL;
-
-void
-FreeScreenSaverTimer(void)
-{
- if (ScreenSaverTimer) {
- TimerFree(ScreenSaverTimer);
- ScreenSaverTimer = NULL;
- }
-}
-
-void
-SetScreenSaverTimer(void)
-{
- if (ScreenSaverTime > 0) {
- ScreenSaverTimer = TimerSet(ScreenSaverTimer, 0, ScreenSaverTime,
- ScreenSaverTimeoutExpire, NULL);
- } else if (ScreenSaverTimer) {
- FreeScreenSaverTimer();
- }
-}
-
-#ifdef DPMSExtension
-
-static OsTimerPtr DPMSStandbyTimer = NULL;
-static OsTimerPtr DPMSSuspendTimer = NULL;
-static OsTimerPtr DPMSOffTimer = NULL;
-
-static CARD32
-DPMSStandbyTimerExpire(OsTimerPtr timer,CARD32 now,pointer arg)
-{
- INT32 timeout = now - lastDeviceEventTime.milliseconds;
-
- if (timeout < DPMSStandbyTime) {
- return DPMSStandbyTime - timeout;
- }
- if (DPMSPowerLevel < DPMSModeStandby) {
- if (DPMSEnabled)
- DPMSSet(DPMSModeStandby);
- }
- return DPMSStandbyTime;
-}
-
-static CARD32
-DPMSSuspendTimerExpire(OsTimerPtr timer,CARD32 now,pointer arg)
-{
- INT32 timeout = now - lastDeviceEventTime.milliseconds;
-
- if (timeout < DPMSSuspendTime) {
- return DPMSSuspendTime - timeout;
- }
- if (DPMSPowerLevel < DPMSModeSuspend) {
- if (DPMSEnabled)
- DPMSSet(DPMSModeSuspend);
- }
- return DPMSSuspendTime;
-}
-
-static CARD32
-DPMSOffTimerExpire(OsTimerPtr timer,CARD32 now,pointer arg)
-{
- INT32 timeout = now - lastDeviceEventTime.milliseconds;
-
- if (timeout < DPMSOffTime) {
- return DPMSOffTime - timeout;
- }
- if (DPMSPowerLevel < DPMSModeOff) {
- if (DPMSEnabled)
- DPMSSet(DPMSModeOff);
- }
- return DPMSOffTime;
-}
-
-void
-FreeDPMSTimers(void)
-{
- if (DPMSStandbyTimer) {
- TimerFree(DPMSStandbyTimer);
- DPMSStandbyTimer = NULL;
- }
- if (DPMSSuspendTimer) {
- TimerFree(DPMSSuspendTimer);
- DPMSSuspendTimer = NULL;
- }
- if (DPMSOffTimer) {
- TimerFree(DPMSOffTimer);
- DPMSOffTimer = NULL;
- }
-}
-
-void
-SetDPMSTimers(void)
-{
- if (!DPMSEnabled)
- return;
-
- DPMSStandbyTimer = TimerSet(DPMSStandbyTimer, 0, DPMSStandbyTime,
- DPMSStandbyTimerExpire, NULL);
- DPMSSuspendTimer = TimerSet(DPMSSuspendTimer, 0, DPMSSuspendTime,
- DPMSSuspendTimerExpire, NULL);
- DPMSOffTimer = TimerSet(DPMSOffTimer, 0, DPMSOffTime,
- DPMSOffTimerExpire, NULL);
-}
-#endif