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[runtime] Use pthread_cond_timedwait_relative_np () function on osx i…
…f available. (#5147)
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/** | ||
* \file | ||
* Portability wrappers around POSIX Mutexes | ||
* | ||
* Authors: Jeffrey Stedfast <fejj@ximian.com> | ||
* | ||
* Copyright 2002 Ximian, Inc. (www.ximian.com) | ||
* | ||
* Licensed under the MIT license. See LICENSE file in the project root for full license information. | ||
* | ||
*/ | ||
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#include <config.h> | ||
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#if !defined(HOST_WIN32) | ||
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#if defined(TARGET_OSX) | ||
/* So we can use the declaration of pthread_cond_timedwait_relative_np () */ | ||
#undef _XOPEN_SOURCE | ||
#endif | ||
#include <pthread.h> | ||
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#include "mono-os-mutex.h" | ||
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int | ||
mono_os_cond_timedwait (mono_cond_t *cond, mono_mutex_t *mutex, guint32 timeout_ms) | ||
{ | ||
struct timespec ts; | ||
int res; | ||
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if (timeout_ms == MONO_INFINITE_WAIT) { | ||
mono_os_cond_wait (cond, mutex); | ||
return 0; | ||
} | ||
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/* ms = 10^-3, us = 10^-6, ns = 10^-9 */ | ||
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/* This function only seems to be available on 64bit osx */ | ||
#if defined(HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE_NP) && defined(TARGET_OSX) | ||
memset (&ts, 0, sizeof (struct timespec)); | ||
ts.tv_sec = timeout_ms / 1000; | ||
ts.tv_nsec = (timeout_ms % 1000) * 1000 * 1000; | ||
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res = pthread_cond_timedwait_relative_np (cond, mutex, &ts); | ||
if (G_UNLIKELY (res != 0 && res != ETIMEDOUT)) { | ||
g_print ("cond: %p mutex: %p\n", *(gpointer*)cond, *(gpointer*)mutex); | ||
g_error ("%s: pthread_cond_timedwait_relative_np failed with \"%s\" (%d) %ld %ld %d", __func__, g_strerror (res), res, ts.tv_sec, ts.tv_nsec, timeout_ms); | ||
} | ||
return res != 0 ? -1 : 0; | ||
#else | ||
#ifdef BROKEN_CLOCK_SOURCE | ||
struct timeval tv; | ||
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/* clock_gettime is not supported in MAC OS x */ | ||
res = gettimeofday (&tv, NULL); | ||
if (G_UNLIKELY (res != 0)) | ||
g_error ("%s: gettimeofday failed with \"%s\" (%d)", __func__, g_strerror (errno), errno); | ||
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ts.tv_sec = tv.tv_sec; | ||
ts.tv_nsec = tv.tv_usec * 1000; | ||
#else | ||
/* cond is using CLOCK_MONOTONIC as time source */ | ||
res = clock_gettime (CLOCK_MONOTONIC, &ts); | ||
if (G_UNLIKELY (res != 0)) | ||
g_error ("%s: clock_gettime failed with \"%s\" (%d)", __func__, g_strerror (errno), errno); | ||
#endif | ||
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ts.tv_sec += timeout_ms / 1000; | ||
ts.tv_nsec += (timeout_ms % 1000) * 1000 * 1000; | ||
if (ts.tv_nsec >= 1000 * 1000 * 1000) { | ||
ts.tv_nsec -= 1000 * 1000 * 1000; | ||
ts.tv_sec ++; | ||
} | ||
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res = pthread_cond_timedwait (cond, mutex, &ts); | ||
if (G_UNLIKELY (res != 0 && res != ETIMEDOUT)) { | ||
g_print ("cond: %p mutex: %p\n", *(gpointer*)cond, *(gpointer*)mutex); | ||
g_error ("%s: pthread_cond_timedwait failed with \"%s\" (%d) %ld %ld %d", __func__, g_strerror (res), res, ts.tv_sec, ts.tv_nsec, timeout_ms); | ||
} | ||
return res != 0 ? -1 : 0; | ||
#endif /* !HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE_NP */ | ||
} | ||
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#endif /* HOST_WIN32 */ |
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