xserver git update 11/9/2010

1 files changed, 11 insertions, 45 deletions

diff --git a/xorg-server/os/utils.c b/xorg-server/os/utils.c
index a6ae27bda..179a4b089 100644
--- a/xorg-server/os/utils.c
+++ b/xorg-server/os/utils.c
@@ -527,6 +527,7 @@ void UseMsg(void)
 #endif

     ErrorF("-dumbSched             Disable smart scheduling, enable old behavior\n");

     ErrorF("-schedInterval int     Set scheduler interval in msec\n");

+    ErrorF("-sigstop               Enable SIGSTOP based startup\n");

     ErrorF("+extension name        Enable extension\n");

     ErrorF("-extension name        Disable extension\n");

 #ifdef XDMCP

@@ -922,6 +923,10 @@ ProcessCommandLine(int argc, char *argv[])
 	    else

 		UseMsg ();

 	}

+	else if ( strcmp( argv[i], "-sigstop") == 0)

+	{

+	    RunFromSigStopParent = TRUE;

+	}

 	else if ( strcmp( argv[i], "+extension") == 0)

 	{

 	    if (++i < argc)

@@ -1116,20 +1121,9 @@ XNFstrdup(const char *s)
     return ret;

 }

 

-

-#ifdef SIGVTALRM

-#define SMART_SCHEDULE_POSSIBLE

-#endif

-

-#ifdef SMART_SCHEDULE_POSSIBLE

-#define SMART_SCHEDULE_SIGNAL		SIGALRM

-#define SMART_SCHEDULE_TIMER		ITIMER_REAL

-#endif

-

 void

 SmartScheduleStopTimer (void)

 {

-#ifdef SMART_SCHEDULE_POSSIBLE

     struct itimerval	timer;

     

     if (SmartScheduleDisable)

@@ -1139,13 +1133,11 @@ SmartScheduleStopTimer (void)
     timer.it_value.tv_sec = 0;

     timer.it_value.tv_usec = 0;

     (void) setitimer (ITIMER_REAL, &timer, 0);

-#endif

 }

 

 void

 SmartScheduleStartTimer (void)

 {

-#ifdef SMART_SCHEDULE_POSSIBLE

     struct itimerval	timer;

     

     if (SmartScheduleDisable)

@@ -1155,41 +1147,33 @@ SmartScheduleStartTimer (void)
     timer.it_value.tv_sec = 0;

     timer.it_value.tv_usec = SmartScheduleInterval * 1000;

     setitimer (ITIMER_REAL, &timer, 0);

-#endif

 }

 

-#ifdef SMART_SCHEDULE_POSSIBLE

 static void

 SmartScheduleTimer (int sig)

 {

     SmartScheduleTime += SmartScheduleInterval;

 }

-#endif

 

-Bool

+void

 SmartScheduleInit (void)

 {

-#ifdef SMART_SCHEDULE_POSSIBLE

     struct sigaction	act;

 

     if (SmartScheduleDisable)

-	return TRUE;

-    

+	return;

+

     memset((char *) &act, 0, sizeof(struct sigaction));

 

     /* Set up the timer signal function */

     act.sa_handler = SmartScheduleTimer;

     sigemptyset (&act.sa_mask);

-    sigaddset (&act.sa_mask, SMART_SCHEDULE_SIGNAL);

-    if (sigaction (SMART_SCHEDULE_SIGNAL, &act, 0) < 0)

+    sigaddset (&act.sa_mask, SIGALRM);

+    if (sigaction (SIGALRM, &act, 0) < 0)

     {

 	perror ("sigaction for smart scheduler");

-	return FALSE;

+	SmartScheduleDisable = TRUE;

     }

-    return TRUE;

-#else

-    return FALSE;

-#endif

 }

 

 #ifdef SIG_BLOCK

@@ -1206,30 +1190,18 @@ OsBlockSignals (void)
 	sigset_t    set;

 	

 	sigemptyset (&set);

-#ifdef SIGALRM

 	sigaddset (&set, SIGALRM);

-#endif

-#ifdef SIGVTALRM

 	sigaddset (&set, SIGVTALRM);

-#endif

 #ifdef SIGWINCH

 	sigaddset (&set, SIGWINCH);

 #endif

 #ifdef SIGIO

 	sigaddset (&set, SIGIO);

 #endif

-#ifdef SIGTSTP

 	sigaddset (&set, SIGTSTP);

-#endif

-#ifdef SIGTTIN

 	sigaddset (&set, SIGTTIN);

-#endif

-#ifdef SIGTTOU

 	sigaddset (&set, SIGTTOU);

-#endif

-#ifdef SIGCHLD

 	sigaddset (&set, SIGCHLD);

-#endif

 	sigprocmask (SIG_BLOCK, &set, &PreviousSignalMask);

     }

 #endif

@@ -1275,21 +1247,17 @@ int
 System(char *command)

 {

     int pid, p;

-#ifdef SIGCHLD

     void (*csig)(int);

-#endif

     int status;

 

     if (!command)

 	return 1;

 

-#ifdef SIGCHLD

     csig = signal(SIGCHLD, SIG_DFL);

     if (csig == SIG_ERR) {

       perror("signal");

       return -1;

     }

-#endif

 

 #ifdef DEBUG

     ErrorF("System: `%s'\n", command);

@@ -1312,12 +1280,10 @@ System(char *command)
 	

     }

 

-#ifdef SIGCHLD

     if (signal(SIGCHLD, csig) == SIG_ERR) {

       perror("signal");

       return -1;

     }

-#endif

 

     return p == -1 ? -1 : status;

 }