src/timer/unix/SDL_systimer.c
branchSDL-1.3
changeset 1662 782fd950bd46
parent 1635 92947e3a18db
child 1668 4da1ee79c9af
--- a/src/timer/unix/SDL_systimer.c	Sun May 21 17:27:13 2006 +0000
+++ b/src/timer/unix/SDL_systimer.c	Sun May 28 13:04:16 2006 +0000
@@ -58,132 +58,145 @@
 #endif /* HAVE_CLOCK_GETTIME */
 
 
-void SDL_StartTicks(void)
+void
+SDL_StartTicks (void)
 {
-	/* Set first ticks value */
+    /* Set first ticks value */
 #if HAVE_CLOCK_GETTIME
-	clock_gettime(CLOCK_MONOTONIC,&start);
+    clock_gettime (CLOCK_MONOTONIC, &start);
 #else
-	gettimeofday(&start, NULL);
+    gettimeofday (&start, NULL);
 #endif
 }
 
-Uint32 SDL_GetTicks (void)
+Uint32
+SDL_GetTicks (void)
 {
 #if HAVE_CLOCK_GETTIME
-	Uint32 ticks;
-	struct timespec now;
-	clock_gettime(CLOCK_MONOTONIC,&now);
-	ticks=(now.tv_sec-start.tv_sec)*1000+(now.tv_nsec-start.tv_nsec)/1000000;
-	return(ticks);
+    Uint32 ticks;
+    struct timespec now;
+    clock_gettime (CLOCK_MONOTONIC, &now);
+    ticks =
+        (now.tv_sec - start.tv_sec) * 1000 + (now.tv_nsec -
+                                              start.tv_nsec) / 1000000;
+    return (ticks);
 #else
-	Uint32 ticks;
-	struct timeval now;
-	gettimeofday(&now, NULL);
-	ticks=(now.tv_sec-start.tv_sec)*1000+(now.tv_usec-start.tv_usec)/1000;
-	return(ticks);
+    Uint32 ticks;
+    struct timeval now;
+    gettimeofday (&now, NULL);
+    ticks =
+        (now.tv_sec - start.tv_sec) * 1000 + (now.tv_usec -
+                                              start.tv_usec) / 1000;
+    return (ticks);
 #endif
 }
 
-void SDL_Delay (Uint32 ms)
+void
+SDL_Delay (Uint32 ms)
 {
 #if SDL_THREAD_PTH
-	pth_time_t tv;
-	tv.tv_sec  =  ms/1000;
-	tv.tv_usec = (ms%1000)*1000;
-	pth_nap(tv);
+    pth_time_t tv;
+    tv.tv_sec = ms / 1000;
+    tv.tv_usec = (ms % 1000) * 1000;
+    pth_nap (tv);
 #else
-	int was_error;
+    int was_error;
 
 #if HAVE_NANOSLEEP
-	struct timespec elapsed, tv;
+    struct timespec elapsed, tv;
 #else
-	struct timeval tv;
-	Uint32 then, now, elapsed;
+    struct timeval tv;
+    Uint32 then, now, elapsed;
 #endif
 
-	/* Set the timeout interval */
+    /* Set the timeout interval */
 #if HAVE_NANOSLEEP
-	elapsed.tv_sec = ms/1000;
-	elapsed.tv_nsec = (ms%1000)*1000000;
+    elapsed.tv_sec = ms / 1000;
+    elapsed.tv_nsec = (ms % 1000) * 1000000;
 #else
-	then = SDL_GetTicks();
+    then = SDL_GetTicks ();
 #endif
-	do {
-		errno = 0;
+    do {
+        errno = 0;
 
 #if HAVE_NANOSLEEP
-		tv.tv_sec = elapsed.tv_sec;
-		tv.tv_nsec = elapsed.tv_nsec;
-		was_error = nanosleep(&tv, &elapsed);
+        tv.tv_sec = elapsed.tv_sec;
+        tv.tv_nsec = elapsed.tv_nsec;
+        was_error = nanosleep (&tv, &elapsed);
 #else
-		/* Calculate the time interval left (in case of interrupt) */
-		now = SDL_GetTicks();
-		elapsed = (now-then);
-		then = now;
-		if ( elapsed >= ms ) {
-			break;
-		}
-		ms -= elapsed;
-		tv.tv_sec = ms/1000;
-		tv.tv_usec = (ms%1000)*1000;
+        /* Calculate the time interval left (in case of interrupt) */
+        now = SDL_GetTicks ();
+        elapsed = (now - then);
+        then = now;
+        if (elapsed >= ms) {
+            break;
+        }
+        ms -= elapsed;
+        tv.tv_sec = ms / 1000;
+        tv.tv_usec = (ms % 1000) * 1000;
 
-		was_error = select(0, NULL, NULL, NULL, &tv);
+        was_error = select (0, NULL, NULL, NULL, &tv);
 #endif /* HAVE_NANOSLEEP */
-	} while ( was_error && (errno == EINTR) );
+    }
+    while (was_error && (errno == EINTR));
 #endif /* SDL_THREAD_PTH */
 }
 
 #ifdef USE_ITIMER
 
-static void HandleAlarm(int sig)
+static void
+HandleAlarm (int sig)
 {
-	Uint32 ms;
+    Uint32 ms;
+
+    if (SDL_alarm_callback) {
+        ms = (*SDL_alarm_callback) (SDL_alarm_interval);
+        if (ms != SDL_alarm_interval) {
+            SDL_SetTimer (ms, SDL_alarm_callback);
+        }
+    }
+}
 
-	if ( SDL_alarm_callback ) {
-		ms = (*SDL_alarm_callback)(SDL_alarm_interval);
-		if ( ms != SDL_alarm_interval ) {
-			SDL_SetTimer(ms, SDL_alarm_callback);
-		}
-	}
+int
+SDL_SYS_TimerInit (void)
+{
+    struct sigaction action;
+
+    /* Set the alarm handler (Linux specific) */
+    SDL_memset (&action, 0, sizeof (action));
+    action.sa_handler = HandleAlarm;
+    action.sa_flags = SA_RESTART;
+    sigemptyset (&action.sa_mask);
+    sigaction (SIGALRM, &action, NULL);
+    return (0);
 }
 
-int SDL_SYS_TimerInit(void)
+void
+SDL_SYS_TimerQuit (void)
 {
-	struct sigaction action;
-
-	/* Set the alarm handler (Linux specific) */
-	SDL_memset(&action, 0, sizeof(action));
-	action.sa_handler = HandleAlarm;
-	action.sa_flags = SA_RESTART;
-	sigemptyset(&action.sa_mask);
-	sigaction(SIGALRM, &action, NULL);
-	return(0);
-}
-
-void SDL_SYS_TimerQuit(void)
-{
-	SDL_SetTimer(0, NULL);
+    SDL_SetTimer (0, NULL);
 }
 
-int SDL_SYS_StartTimer(void)
+int
+SDL_SYS_StartTimer (void)
 {
-	struct itimerval timer;
+    struct itimerval timer;
 
-	timer.it_value.tv_sec = (SDL_alarm_interval/1000);
-	timer.it_value.tv_usec = (SDL_alarm_interval%1000)*1000;
-	timer.it_interval.tv_sec = (SDL_alarm_interval/1000);
-	timer.it_interval.tv_usec = (SDL_alarm_interval%1000)*1000;
-	setitimer(ITIMER_REAL, &timer, NULL);
-	return(0);
+    timer.it_value.tv_sec = (SDL_alarm_interval / 1000);
+    timer.it_value.tv_usec = (SDL_alarm_interval % 1000) * 1000;
+    timer.it_interval.tv_sec = (SDL_alarm_interval / 1000);
+    timer.it_interval.tv_usec = (SDL_alarm_interval % 1000) * 1000;
+    setitimer (ITIMER_REAL, &timer, NULL);
+    return (0);
 }
 
-void SDL_SYS_StopTimer(void)
+void
+SDL_SYS_StopTimer (void)
 {
-	struct itimerval timer;
+    struct itimerval timer;
 
-	SDL_memset(&timer, 0, (sizeof timer));
-	setitimer(ITIMER_REAL, &timer, NULL);
+    SDL_memset (&timer, 0, (sizeof timer));
+    setitimer (ITIMER_REAL, &timer, NULL);
 }
 
 #else /* USE_ITIMER */
@@ -194,47 +207,53 @@
 static int timer_alive = 0;
 static SDL_Thread *timer = NULL;
 
-static int RunTimer(void *unused)
+static int
+RunTimer (void *unused)
 {
-	while ( timer_alive ) {
-		if ( SDL_timer_running ) {
-			SDL_ThreadedTimerCheck();
-		}
-		SDL_Delay(1);
-	}
-	return(0);
+    while (timer_alive) {
+        if (SDL_timer_running) {
+            SDL_ThreadedTimerCheck ();
+        }
+        SDL_Delay (1);
+    }
+    return (0);
 }
 
 /* This is only called if the event thread is not running */
-int SDL_SYS_TimerInit(void)
+int
+SDL_SYS_TimerInit (void)
 {
-	timer_alive = 1;
-	timer = SDL_CreateThread(RunTimer, NULL);
-	if ( timer == NULL )
-		return(-1);
-	return(SDL_SetTimerThreaded(1));
+    timer_alive = 1;
+    timer = SDL_CreateThread (RunTimer, NULL);
+    if (timer == NULL)
+        return (-1);
+    return (SDL_SetTimerThreaded (1));
 }
 
-void SDL_SYS_TimerQuit(void)
+void
+SDL_SYS_TimerQuit (void)
 {
-	timer_alive = 0;
-	if ( timer ) {
-		SDL_WaitThread(timer, NULL);
-		timer = NULL;
-	}
+    timer_alive = 0;
+    if (timer) {
+        SDL_WaitThread (timer, NULL);
+        timer = NULL;
+    }
 }
 
-int SDL_SYS_StartTimer(void)
+int
+SDL_SYS_StartTimer (void)
 {
-	SDL_SetError("Internal logic error: Linux uses threaded timer");
-	return(-1);
+    SDL_SetError ("Internal logic error: Linux uses threaded timer");
+    return (-1);
 }
 
-void SDL_SYS_StopTimer(void)
+void
+SDL_SYS_StopTimer (void)
 {
-	return;
+    return;
 }
 
 #endif /* USE_ITIMER */
 
 #endif /* SDL_TIMER_UNIX */
+/* vi: set ts=4 sw=4 expandtab: */