453 lines
8.6 KiB
C
453 lines
8.6 KiB
C
/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to
|
|
* deal in the Software without restriction, including without limitation the
|
|
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
|
* sell copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
* IN THE SOFTWARE.
|
|
*/
|
|
|
|
#include "uv.h"
|
|
#include "internal.h"
|
|
|
|
#include <pthread.h>
|
|
#include <assert.h>
|
|
#include <errno.h>
|
|
|
|
#if defined(__APPLE__) && defined(__MACH__)
|
|
#include <sys/time.h>
|
|
#endif /* defined(__APPLE__) && defined(__MACH__) */
|
|
|
|
#undef NANOSEC
|
|
#define NANOSEC ((uint64_t) 1e9)
|
|
|
|
int uv_thread_join(uv_thread_t *tid) {
|
|
if (pthread_join(*tid, NULL))
|
|
return -1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
|
|
int uv_mutex_init(uv_mutex_t* mutex) {
|
|
#ifdef NDEBUG
|
|
if (pthread_mutex_init(mutex, NULL))
|
|
return -1;
|
|
else
|
|
return 0;
|
|
#else
|
|
pthread_mutexattr_t attr;
|
|
int r;
|
|
|
|
if (pthread_mutexattr_init(&attr))
|
|
abort();
|
|
|
|
if (pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK))
|
|
abort();
|
|
|
|
r = pthread_mutex_init(mutex, &attr);
|
|
|
|
if (pthread_mutexattr_destroy(&attr))
|
|
abort();
|
|
|
|
return r ? -1 : 0;
|
|
#endif
|
|
}
|
|
|
|
|
|
void uv_mutex_destroy(uv_mutex_t* mutex) {
|
|
if (pthread_mutex_destroy(mutex))
|
|
abort();
|
|
}
|
|
|
|
|
|
void uv_mutex_lock(uv_mutex_t* mutex) {
|
|
if (pthread_mutex_lock(mutex))
|
|
abort();
|
|
}
|
|
|
|
|
|
int uv_mutex_trylock(uv_mutex_t* mutex) {
|
|
int r;
|
|
|
|
r = pthread_mutex_trylock(mutex);
|
|
|
|
if (r && r != EBUSY && r != EAGAIN)
|
|
abort();
|
|
|
|
if (r)
|
|
return -1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
|
|
void uv_mutex_unlock(uv_mutex_t* mutex) {
|
|
if (pthread_mutex_unlock(mutex))
|
|
abort();
|
|
}
|
|
|
|
|
|
int uv_rwlock_init(uv_rwlock_t* rwlock) {
|
|
if (pthread_rwlock_init(rwlock, NULL))
|
|
return -1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
|
|
void uv_rwlock_destroy(uv_rwlock_t* rwlock) {
|
|
if (pthread_rwlock_destroy(rwlock))
|
|
abort();
|
|
}
|
|
|
|
|
|
void uv_rwlock_rdlock(uv_rwlock_t* rwlock) {
|
|
if (pthread_rwlock_rdlock(rwlock))
|
|
abort();
|
|
}
|
|
|
|
|
|
int uv_rwlock_tryrdlock(uv_rwlock_t* rwlock) {
|
|
int r;
|
|
|
|
r = pthread_rwlock_tryrdlock(rwlock);
|
|
|
|
if (r && r != EBUSY && r != EAGAIN)
|
|
abort();
|
|
|
|
if (r)
|
|
return -1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
|
|
void uv_rwlock_rdunlock(uv_rwlock_t* rwlock) {
|
|
if (pthread_rwlock_unlock(rwlock))
|
|
abort();
|
|
}
|
|
|
|
|
|
void uv_rwlock_wrlock(uv_rwlock_t* rwlock) {
|
|
if (pthread_rwlock_wrlock(rwlock))
|
|
abort();
|
|
}
|
|
|
|
|
|
int uv_rwlock_trywrlock(uv_rwlock_t* rwlock) {
|
|
int r;
|
|
|
|
r = pthread_rwlock_trywrlock(rwlock);
|
|
|
|
if (r && r != EBUSY && r != EAGAIN)
|
|
abort();
|
|
|
|
if (r)
|
|
return -1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
|
|
void uv_rwlock_wrunlock(uv_rwlock_t* rwlock) {
|
|
if (pthread_rwlock_unlock(rwlock))
|
|
abort();
|
|
}
|
|
|
|
|
|
void uv_once(uv_once_t* guard, void (*callback)(void)) {
|
|
if (pthread_once(guard, callback))
|
|
abort();
|
|
}
|
|
|
|
#if defined(__APPLE__) && defined(__MACH__)
|
|
|
|
int uv_sem_init(uv_sem_t* sem, unsigned int value) {
|
|
if (semaphore_create(mach_task_self(), sem, SYNC_POLICY_FIFO, value))
|
|
return -1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
|
|
void uv_sem_destroy(uv_sem_t* sem) {
|
|
if (semaphore_destroy(mach_task_self(), *sem))
|
|
abort();
|
|
}
|
|
|
|
|
|
void uv_sem_post(uv_sem_t* sem) {
|
|
if (semaphore_signal(*sem))
|
|
abort();
|
|
}
|
|
|
|
|
|
void uv_sem_wait(uv_sem_t* sem) {
|
|
int r;
|
|
|
|
do
|
|
r = semaphore_wait(*sem);
|
|
while (r == KERN_ABORTED);
|
|
|
|
if (r != KERN_SUCCESS)
|
|
abort();
|
|
}
|
|
|
|
|
|
int uv_sem_trywait(uv_sem_t* sem) {
|
|
mach_timespec_t interval;
|
|
|
|
interval.tv_sec = 0;
|
|
interval.tv_nsec = 0;
|
|
|
|
if (semaphore_timedwait(*sem, interval) == KERN_SUCCESS)
|
|
return 0;
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
#else /* !(defined(__APPLE__) && defined(__MACH__)) */
|
|
|
|
int uv_sem_init(uv_sem_t* sem, unsigned int value) {
|
|
return sem_init(sem, 0, value);
|
|
}
|
|
|
|
|
|
void uv_sem_destroy(uv_sem_t* sem) {
|
|
if (sem_destroy(sem))
|
|
abort();
|
|
}
|
|
|
|
|
|
void uv_sem_post(uv_sem_t* sem) {
|
|
if (sem_post(sem))
|
|
abort();
|
|
}
|
|
|
|
|
|
void uv_sem_wait(uv_sem_t* sem) {
|
|
int r;
|
|
|
|
do
|
|
r = sem_wait(sem);
|
|
while (r == -1 && errno == EINTR);
|
|
|
|
if (r)
|
|
abort();
|
|
}
|
|
|
|
|
|
int uv_sem_trywait(uv_sem_t* sem) {
|
|
int r;
|
|
|
|
do
|
|
r = sem_trywait(sem);
|
|
while (r == -1 && errno == EINTR);
|
|
|
|
if (r && errno != EAGAIN)
|
|
abort();
|
|
|
|
return r;
|
|
}
|
|
|
|
#endif /* defined(__APPLE__) && defined(__MACH__) */
|
|
|
|
|
|
#if defined(__APPLE__) && defined(__MACH__)
|
|
|
|
int uv_cond_init(uv_cond_t* cond) {
|
|
if (pthread_cond_init(cond, NULL))
|
|
return -1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
#else /* !(defined(__APPLE__) && defined(__MACH__)) */
|
|
|
|
int uv_cond_init(uv_cond_t* cond) {
|
|
pthread_condattr_t attr;
|
|
|
|
if (pthread_condattr_init(&attr))
|
|
return -1;
|
|
|
|
if (pthread_condattr_setclock(&attr, CLOCK_MONOTONIC))
|
|
goto error2;
|
|
|
|
if (pthread_cond_init(cond, &attr))
|
|
goto error2;
|
|
|
|
if (pthread_condattr_destroy(&attr))
|
|
goto error;
|
|
|
|
return 0;
|
|
|
|
error:
|
|
pthread_cond_destroy(cond);
|
|
error2:
|
|
pthread_condattr_destroy(&attr);
|
|
return -1;
|
|
}
|
|
|
|
#endif /* defined(__APPLE__) && defined(__MACH__) */
|
|
|
|
void uv_cond_destroy(uv_cond_t* cond) {
|
|
if (pthread_cond_destroy(cond))
|
|
abort();
|
|
}
|
|
|
|
void uv_cond_signal(uv_cond_t* cond) {
|
|
if (pthread_cond_signal(cond))
|
|
abort();
|
|
}
|
|
|
|
void uv_cond_broadcast(uv_cond_t* cond) {
|
|
if (pthread_cond_broadcast(cond))
|
|
abort();
|
|
}
|
|
|
|
void uv_cond_wait(uv_cond_t* cond, uv_mutex_t* mutex) {
|
|
if (pthread_cond_wait(cond, mutex))
|
|
abort();
|
|
}
|
|
|
|
#if defined(__APPLE__) && defined(__MACH__)
|
|
|
|
int uv_cond_timedwait(uv_cond_t* cond, uv_mutex_t* mutex, uint64_t timeout) {
|
|
int r;
|
|
struct timeval tv;
|
|
struct timespec ts;
|
|
uint64_t abstime;
|
|
|
|
gettimeofday(&tv, NULL);
|
|
abstime = tv.tv_sec * 1e9 + tv.tv_usec * 1e3 + timeout;
|
|
ts.tv_sec = abstime / NANOSEC;
|
|
ts.tv_nsec = abstime % NANOSEC;
|
|
r = pthread_cond_timedwait(cond, mutex, &ts);
|
|
|
|
if (r == 0)
|
|
return 0;
|
|
|
|
if (r == ETIMEDOUT)
|
|
return -1;
|
|
|
|
abort();
|
|
return -1; /* Satisfy the compiler. */
|
|
}
|
|
|
|
#else /* !(defined(__APPLE__) && defined(__MACH__)) */
|
|
|
|
int uv_cond_timedwait(uv_cond_t* cond, uv_mutex_t* mutex, uint64_t timeout) {
|
|
int r;
|
|
struct timespec ts;
|
|
uint64_t abstime;
|
|
|
|
abstime = uv_hrtime() + timeout;
|
|
ts.tv_sec = abstime / NANOSEC;
|
|
ts.tv_nsec = abstime % NANOSEC;
|
|
r = pthread_cond_timedwait(cond, mutex, &ts);
|
|
|
|
if (r == 0)
|
|
return 0;
|
|
|
|
if (r == ETIMEDOUT)
|
|
return -1;
|
|
|
|
abort();
|
|
return -1; /* Satisfy the compiler. */
|
|
}
|
|
|
|
#endif /* defined(__APPLE__) && defined(__MACH__) */
|
|
|
|
|
|
#if defined(__APPLE__) && defined(__MACH__)
|
|
|
|
int uv_barrier_init(uv_barrier_t* barrier, unsigned int count) {
|
|
barrier->n = count;
|
|
barrier->count = 0;
|
|
|
|
if (uv_mutex_init(&barrier->mutex))
|
|
return -1;
|
|
|
|
if (uv_sem_init(&barrier->turnstile1, 0))
|
|
goto error2;
|
|
|
|
if (uv_sem_init(&barrier->turnstile2, 1))
|
|
goto error;
|
|
|
|
return 0;
|
|
|
|
error:
|
|
uv_sem_destroy(&barrier->turnstile1);
|
|
error2:
|
|
uv_mutex_destroy(&barrier->mutex);
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
void uv_barrier_destroy(uv_barrier_t* barrier) {
|
|
uv_sem_destroy(&barrier->turnstile2);
|
|
uv_sem_destroy(&barrier->turnstile1);
|
|
uv_mutex_destroy(&barrier->mutex);
|
|
}
|
|
|
|
|
|
void uv_barrier_wait(uv_barrier_t* barrier) {
|
|
uv_mutex_lock(&barrier->mutex);
|
|
if (++barrier->count == barrier->n) {
|
|
uv_sem_wait(&barrier->turnstile2);
|
|
uv_sem_post(&barrier->turnstile1);
|
|
}
|
|
uv_mutex_unlock(&barrier->mutex);
|
|
|
|
uv_sem_wait(&barrier->turnstile1);
|
|
uv_sem_post(&barrier->turnstile1);
|
|
|
|
uv_mutex_lock(&barrier->mutex);
|
|
if (--barrier->count == 0) {
|
|
uv_sem_wait(&barrier->turnstile1);
|
|
uv_sem_post(&barrier->turnstile2);
|
|
}
|
|
uv_mutex_unlock(&barrier->mutex);
|
|
|
|
uv_sem_wait(&barrier->turnstile2);
|
|
uv_sem_post(&barrier->turnstile2);
|
|
}
|
|
|
|
#else /* !(defined(__APPLE__) && defined(__MACH__)) */
|
|
|
|
int uv_barrier_init(uv_barrier_t* barrier, unsigned int count) {
|
|
if (pthread_barrier_init(barrier, NULL, count))
|
|
return -1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
|
|
void uv_barrier_destroy(uv_barrier_t* barrier) {
|
|
if (pthread_barrier_destroy(barrier))
|
|
abort();
|
|
}
|
|
|
|
|
|
void uv_barrier_wait(uv_barrier_t* barrier) {
|
|
int r = pthread_barrier_wait(barrier);
|
|
if (r && r != PTHREAD_BARRIER_SERIAL_THREAD)
|
|
abort();
|
|
}
|
|
|
|
#endif /* defined(__APPLE__) && defined(__MACH__) */
|