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Revert "win32/pthread: don't convert time through unrelated timer" 

This reverts commit 318b5471a1.

While it may work, changing these two functions in violation of their documented
behaviour for the sake of a shortcut is a hack that will spell disaster sooner or later.

This is a partial revert since the commit in question also contained a hidden
bugfix where it swapped the calculation order for time_rel.
This commit is contained in:
sfan5 2023-10-17 13:52:54 +02:00
parent 9a7291d48e
commit 9f147496b5
2 changed files with 16 additions and 14 deletions
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8
osdep/timer.c
View File

@ -27,7 +27,6 @@
#include "common/msg.h"
#include "misc/random.h"
#include "timer.h"
#include "config.h"
static uint64_t raw_time_offset;
static pthread_once_t timer_init_once = PTHREAD_ONCE_INIT;
@ -73,7 +72,6 @@ int64_t mp_time_ns_add(int64_t time_ns, double timeout_sec)
return time_ns + ti;
}
#if !HAVE_WIN32_INTERNAL_PTHREADS
static int get_realtime(struct timespec *out_ts)
{
#if defined(_POSIX_TIMERS) && _POSIX_TIMERS > 0
@ -87,19 +85,13 @@ static int get_realtime(struct timespec *out_ts)
return 0;
#endif
}
#endif
struct timespec mp_time_ns_to_realtime(int64_t time_ns)
{
struct timespec ts = {0};
#if !HAVE_WIN32_INTERNAL_PTHREADS
if (get_realtime(&ts) != 0)
return ts;
int64_t time_rel = time_ns - mp_time_ns();
#else
int64_t time_rel = time_ns;
#endif
// clamp to 1000 days in the future
time_rel = MPMIN(time_rel, 1000 * 24 * 60 * 60 * INT64_C(1000000000));

22
osdep/win32/pthread.c
View File

@ -23,7 +23,6 @@
#include <assert.h>
#include <windows.h>
#include "common/common.h"
#include "osdep/timer.h" // mp_{start,end}_hires_timers
int pthread_once(pthread_once_t *once_control, void (*init_routine)(void))
@ -96,11 +95,22 @@ int pthread_cond_timedwait(pthread_cond_t *restrict cond,
pthread_mutex_t *restrict mutex,
const struct timespec *restrict abstime)
{
// mp time is not converted to realtime if internal pthread impl is used
int64_t now = mp_time_ns();
int64_t time_ns = abstime->tv_sec * UINT64_C(1000000000) + abstime->tv_nsec;
int64_t timeout_ms = (time_ns - now) / INT64_C(1000000);
return cond_wait(cond, mutex, MPCLAMP(timeout_ms, 0, INFINITE));
// mpv uses mingw's gettimeofday() as time source too.
struct timeval tv;
gettimeofday(&tv, NULL);
DWORD timeout_ms = 0;
if (abstime->tv_sec >= INT64_MAX / 10000) {
timeout_ms = INFINITE;
} else if (abstime->tv_sec >= tv.tv_sec) {
long long msec = (abstime->tv_sec - tv.tv_sec) * 1000LL +
abstime->tv_nsec / 1000LL / 1000LL - tv.tv_usec / 1000LL;
if (msec > INT_MAX) {
timeout_ms = INFINITE;
} else if (msec > 0) {
timeout_ms = msec;
}
}
return cond_wait(cond, mutex, timeout_ms);
}
int pthread_cond_wait(pthread_cond_t *restrict cond,