[PATCH 5/6] dix/dispatch.c, os/utils.c: Disable smart scheduler on WIN32
Jon TURNEY
jon.turney at dronecode.org.uk
Tue Nov 13 05:40:50 PST 2012
setitimer() and SIGALRM aren't available on WIN32, so smart scheduler
code cannot be built. Provide only stubs for smart scheduler timer
code, and disable smart scheduler by default.
Signed-off-by: Ryan Pavlik <rpavlik at iastate.edu>
Reviewed-by: Jon TURNEY <jon.turney at dronecode.org.uk>
Tested-by: Yaakov Selkowitz <yselkowitz at users.sourceforge.net>
---
dix/dispatch.c | 4 ++++
os/utils.c | 9 +++++++++
2 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/dix/dispatch.c b/dix/dispatch.c
index 2df1a6e..99ba277 100644
--- a/dix/dispatch.c
+++ b/dix/dispatch.c
@@ -223,7 +223,11 @@ UpdateCurrentTimeIf(void)
#define SMART_SCHEDULE_DEFAULT_INTERVAL 20 /* ms */
#define SMART_SCHEDULE_MAX_SLICE 200 /* ms */
+#if defined(WIN32) && !defined(__CYGWIN__)
+Bool SmartScheduleDisable = TRUE;
+#else
Bool SmartScheduleDisable = FALSE;
+#endif
long SmartScheduleSlice = SMART_SCHEDULE_DEFAULT_INTERVAL;
long SmartScheduleInterval = SMART_SCHEDULE_DEFAULT_INTERVAL;
long SmartScheduleMaxSlice = SMART_SCHEDULE_MAX_SLICE;
diff --git a/os/utils.c b/os/utils.c
index d6c6ebb..3f75f18 100644
--- a/os/utils.c
+++ b/os/utils.c
@@ -71,6 +71,7 @@ __stdcall unsigned long GetTickCount(void);
#if !defined(WIN32) || !defined(__MINGW32__)
#include <sys/time.h>
#include <sys/resource.h>
+# define SMART_SCHEDULE_POSSIBLE
#endif
#include "misc.h"
#include <X11/X.h>
@@ -898,6 +899,7 @@ ProcessCommandLine(int argc, char *argv[])
i = skip - 1;
}
#endif
+#ifdef SMART_SCHEDULE_POSSIBLE
else if (strcmp(argv[i], "-dumbSched") == 0) {
SmartScheduleDisable = TRUE;
}
@@ -916,6 +918,7 @@ ProcessCommandLine(int argc, char *argv[])
else
UseMsg();
}
+#endif
else if (strcmp(argv[i], "-render") == 0) {
if (++i < argc) {
int policy = PictureParseCmapPolicy(argv[i]);
@@ -1127,6 +1130,7 @@ XNFstrdup(const char *s)
void
SmartScheduleStopTimer(void)
{
+#ifdef SMART_SCHEDULE_POSSIBLE
struct itimerval timer;
if (SmartScheduleDisable)
@@ -1136,11 +1140,13 @@ 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)
@@ -1150,6 +1156,7 @@ SmartScheduleStartTimer(void)
timer.it_value.tv_sec = 0;
timer.it_value.tv_usec = SmartScheduleInterval * 1000;
setitimer(ITIMER_REAL, &timer, 0);
+#endif
}
static void
@@ -1161,6 +1168,7 @@ SmartScheduleTimer(int sig)
void
SmartScheduleInit(void)
{
+#ifdef SMART_SCHEDULE_POSSIBLE
struct sigaction act;
if (SmartScheduleDisable)
@@ -1176,6 +1184,7 @@ SmartScheduleInit(void)
perror("sigaction for smart scheduler");
SmartScheduleDisable = TRUE;
}
+#endif
}
#ifdef SIG_BLOCK
--
1.7.9
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