From 640bf8ad44027d37f917d0927e50c2dfea254917 Mon Sep 17 00:00:00 2001 From: Eli Zaretskii Date: Sun, 28 Oct 2012 19:42:52 +0200 Subject: Don't use CLOCKS_PER_SEC in w32 timers. src/w32proc.c (TIMER_TICKS_PER_SEC): New macro. (timer_loop, getitimer, setitimer): Use it instead of CLOCKS_PER_SEC, which is no longer pertinent, since we don't use 'clock'. (w32_get_timer_time): Use 10*TIMER_TICKS_PER_SEC instead of a literal 10000. --- src/ChangeLog | 9 +++++++++ src/w32proc.c | 39 ++++++++++++++++++++++----------------- 2 files changed, 31 insertions(+), 17 deletions(-) (limited to 'src') diff --git a/src/ChangeLog b/src/ChangeLog index d2c16fa8310..beec867d333 100644 --- a/src/ChangeLog +++ b/src/ChangeLog @@ -1,3 +1,12 @@ +2012-10-28 Eli Zaretskii + + * w32proc.c (TIMER_TICKS_PER_SEC): New macro. + (timer_loop, getitimer, setitimer): Use it instead of + CLOCKS_PER_SEC, which is no longer pertinent, since we don't use + 'clock'. + (w32_get_timer_time): Use 10*TIMER_TICKS_PER_SEC instead of a + literal 10000. + 2012-10-28 Jan Djärv * nsterm.m (NO_APPDEFINED_DATA): New define. diff --git a/src/w32proc.c b/src/w32proc.c index e2187d52425..d45d9879a24 100644 --- a/src/w32proc.c +++ b/src/w32proc.c @@ -272,6 +272,9 @@ typedef BOOL (WINAPI *GetThreadTimes_Proc) ( static GetThreadTimes_Proc s_pfn_Get_Thread_Times; +#define MAX_SINGLE_SLEEP 30 +#define TIMER_TICKS_PER_SEC 1000 + /* Return a suitable time value, in 1-ms units, for THREAD, a handle to a thread. If THREAD is NULL or an invalid handle, return the current wall-clock time since January 1, 1601 (UTC). Otherwise, @@ -282,6 +285,8 @@ w32_get_timer_time (HANDLE thread) { ULONGLONG retval; int use_system_time = 1; + /* The functions below return times in 100-ns units. */ + const int tscale = 10 * TIMER_TICKS_PER_SEC; if (thread && thread != INVALID_HANDLE_VALUE && s_pfn_Get_Thread_Times != NULL) @@ -300,8 +305,8 @@ w32_get_timer_time (HANDLE thread) temp_user.LowPart = user_ftime.dwLowDateTime; temp_user.HighPart = user_ftime.dwHighDateTime; retval = - temp_creation.QuadPart / 10000 + temp_kernel.QuadPart / 10000 - + temp_user.QuadPart / 10000; + temp_creation.QuadPart / tscale + temp_kernel.QuadPart / tscale + + temp_user.QuadPart / tscale; } else DebPrint (("GetThreadTimes failed with error code %lu\n", @@ -318,14 +323,12 @@ w32_get_timer_time (HANDLE thread) temp.LowPart = current_ftime.dwLowDateTime; temp.HighPart = current_ftime.dwHighDateTime; - retval = temp.QuadPart / 10000; + retval = temp.QuadPart / tscale; } return retval; } -#define MAX_SINGLE_SLEEP 30 - /* Thread function for a timer thread. */ static DWORD WINAPI timer_loop (LPVOID arg) @@ -334,7 +337,7 @@ timer_loop (LPVOID arg) int which = itimer->type; int sig = (which == ITIMER_REAL) ? SIGALRM : SIGPROF; CRITICAL_SECTION *crit = (which == ITIMER_REAL) ? &crit_real : &crit_prof; - const DWORD max_sleep = MAX_SINGLE_SLEEP * 1000 / CLOCKS_PER_SEC; + const DWORD max_sleep = MAX_SINGLE_SLEEP * 1000 / TIMER_TICKS_PER_SEC; HANDLE hth = (which == ITIMER_REAL) ? NULL : itimer->caller_thread; while (1) @@ -379,7 +382,7 @@ timer_loop (LPVOID arg) return 0; if (sleep_time > 0) { - Sleep (sleep_time * 1000 / CLOCKS_PER_SEC); + Sleep (sleep_time * 1000 / TIMER_TICKS_PER_SEC); /* Always sleep past the expiration time, to make sure we never call the handler _before_ the expiration time, always slightly after it. Sleep(5) makes sure we don't @@ -629,11 +632,13 @@ getitimer (int which, struct itimerval *value) if (expire) expire -= ticks_now; - value->it_value.tv_sec = expire / CLOCKS_PER_SEC; - usecs = (expire % CLOCKS_PER_SEC) * (__int64)1000000 / CLOCKS_PER_SEC; + value->it_value.tv_sec = expire / TIMER_TICKS_PER_SEC; + usecs = + (expire % TIMER_TICKS_PER_SEC) * (__int64)1000000 / TIMER_TICKS_PER_SEC; value->it_value.tv_usec = usecs; - value->it_interval.tv_sec = reload / CLOCKS_PER_SEC; - usecs = (reload % CLOCKS_PER_SEC) * (__int64)1000000 / CLOCKS_PER_SEC; + value->it_interval.tv_sec = reload / TIMER_TICKS_PER_SEC; + usecs = + (reload % TIMER_TICKS_PER_SEC) * (__int64)1000000 / TIMER_TICKS_PER_SEC; value->it_interval.tv_usec= usecs; return 0; @@ -690,26 +695,26 @@ setitimer(int which, struct itimerval *value, struct itimerval *ovalue) return 0; } - reload = value->it_interval.tv_sec * CLOCKS_PER_SEC; + reload = value->it_interval.tv_sec * TIMER_TICKS_PER_SEC; usecs = value->it_interval.tv_usec; if (value->it_interval.tv_sec == 0 - && usecs && usecs * CLOCKS_PER_SEC < clocks_min * 1000000) + && usecs && usecs * TIMER_TICKS_PER_SEC < clocks_min * 1000000) reload = clocks_min; else { - usecs *= CLOCKS_PER_SEC; + usecs *= TIMER_TICKS_PER_SEC; reload += usecs / 1000000; } - expire = value->it_value.tv_sec * CLOCKS_PER_SEC; + expire = value->it_value.tv_sec * TIMER_TICKS_PER_SEC; usecs = value->it_value.tv_usec; if (value->it_value.tv_sec == 0 - && usecs * CLOCKS_PER_SEC < clocks_min * 1000000) + && usecs * TIMER_TICKS_PER_SEC < clocks_min * 1000000) expire = clocks_min; else { - usecs *= CLOCKS_PER_SEC; + usecs *= TIMER_TICKS_PER_SEC; expire += usecs / 1000000; } -- cgit v1.2.1