forked from enlightenment/efl
734 lines
18 KiB
Plaintext
734 lines
18 KiB
Plaintext
/* EINA - EFL data type library
|
|
* Copyright (C) 2011 Vincent Torri
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library;
|
|
* if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef EINA_INLINE_LOCK_POSIX_X_
|
|
#define EINA_INLINE_LOCK_POSIX_X_
|
|
|
|
#ifdef _XOPEN_SOURCE
|
|
# define EINA_XOPEN_SOURCE _XOPEN_SOURCE
|
|
# undef _XOPEN_SOURCE
|
|
#endif
|
|
#define _XOPEN_SOURCE 600
|
|
|
|
#ifdef EINA_HAVE_POSIX_SPINLOCK
|
|
# include <sched.h>
|
|
#endif
|
|
|
|
#include <errno.h>
|
|
#ifndef __USE_UNIX98
|
|
# define __USE_UNIX98
|
|
# include <pthread.h>
|
|
# undef __USE_UNIX98
|
|
#else
|
|
# include <pthread.h>
|
|
#endif
|
|
|
|
#ifdef EINA_HAVE_OSX_SEMAPHORE
|
|
# include <mach/mach.h>
|
|
#endif
|
|
|
|
#include <semaphore.h>
|
|
|
|
#include <sys/time.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include <sys/types.h>
|
|
#include <unistd.h>
|
|
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
#include <assert.h>
|
|
#include <execinfo.h>
|
|
#define EINA_LOCK_DEBUG_BT_NUM 64
|
|
typedef void (*Eina_Lock_Bt_Func) ();
|
|
|
|
#include "eina_inlist.h"
|
|
#endif
|
|
|
|
EAPI void _eina_lock_debug_abort(int err, const char *fn, const volatile void *ptr);
|
|
EAPI void _eina_lock_debug_deadlock(const char *fn, const volatile void *ptr);
|
|
|
|
#define EINA_LOCK_ABORT_DEBUG(err, fn, ptr) \
|
|
_eina_lock_debug_abort(err, #fn, ptr)
|
|
#define EINA_LOCK_DEADLOCK_DEBUG(fn, ptr) \
|
|
_eina_lock_debug_deadlock(#fn, ptr)
|
|
|
|
/* For cond_timedwait */
|
|
#include <time.h>
|
|
#include <sys/time.h>
|
|
|
|
#include <eina_error.h>
|
|
|
|
typedef struct _Eina_Lock Eina_Lock;
|
|
typedef struct _Eina_RWLock Eina_RWLock;
|
|
typedef struct _Eina_Condition Eina_Condition;
|
|
typedef pthread_key_t Eina_TLS;
|
|
|
|
#if defined(EINA_HAVE_POSIX_SPINLOCK)
|
|
typedef pthread_spinlock_t Eina_Spinlock;
|
|
#elif defined(EINA_HAVE_OSX_SPINLOCK)
|
|
typedef uintptr_t Eina_Spinlock;
|
|
#else
|
|
typedef Eina_Lock Eina_Spinlock;
|
|
#endif
|
|
|
|
#if defined(EINA_HAVE_OSX_SEMAPHORE)
|
|
typedef semaphore_t Eina_Semaphore;
|
|
#else
|
|
typedef sem_t Eina_Semaphore;
|
|
#endif
|
|
|
|
EAPI void eina_lock_debug(const Eina_Lock *mutex);
|
|
|
|
/** @privatesection @{ */
|
|
struct _Eina_Lock
|
|
{
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
EINA_INLIST; /**< Keeps track of the threads waiting for the lock */
|
|
#endif
|
|
pthread_mutex_t mutex; /**< The mutex that handles the locking */
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
pthread_t lock_thread_id; /**< The ID of the thread that currently has the lock */
|
|
Eina_Lock_Bt_Func lock_bt[EINA_LOCK_DEBUG_BT_NUM]; /**< The function that will produce a backtrace on the thread that has the lock */
|
|
int lock_bt_num; /**< Number of addresses in the backtrace */
|
|
Eina_Bool locked : 1; /**< Indicates locked or not locked */
|
|
#endif
|
|
};
|
|
|
|
struct _Eina_Condition
|
|
{
|
|
Eina_Lock *lock; /**< The lock for this condition */
|
|
pthread_cond_t condition; /**< The condition variable */
|
|
#if defined(__clockid_t_defined)
|
|
clockid_t clkid; /**< The attached clock for timedwait */
|
|
#endif
|
|
};
|
|
|
|
struct _Eina_RWLock
|
|
{
|
|
pthread_rwlock_t mutex; /**< The mutex that handles the locking */
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
pthread_t lock_thread_wid; /**< The ID of the thread that currently has the lock */
|
|
#endif
|
|
};
|
|
/** @} privatesection */
|
|
|
|
EAPI extern Eina_Bool _eina_threads_activated;
|
|
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
EAPI extern int _eina_threads_debug;
|
|
EAPI extern pthread_t _eina_main_loop;
|
|
EAPI extern pthread_mutex_t _eina_tracking_lock;
|
|
EAPI extern Eina_Inlist *_eina_tracking;
|
|
#endif
|
|
|
|
|
|
EAPI Eina_Bool _eina_lock_new(Eina_Lock *mutex, Eina_Bool recursive);
|
|
EAPI void _eina_lock_free(Eina_Lock *mutex);
|
|
EAPI Eina_Bool _eina_condition_new(Eina_Condition *cond, Eina_Lock *mutex);
|
|
EAPI void _eina_condition_free(Eina_Condition *cond);
|
|
EAPI Eina_Bool _eina_rwlock_new(Eina_RWLock *mutex);
|
|
EAPI void _eina_rwlock_free(Eina_RWLock *mutex);
|
|
EAPI Eina_Bool _eina_spinlock_new(Eina_Spinlock *spinlock);
|
|
EAPI void _eina_spinlock_free(Eina_Spinlock *spinlock);
|
|
EAPI Eina_Bool _eina_semaphore_new(Eina_Semaphore *sem, int count_init);
|
|
EAPI Eina_Bool _eina_semaphore_free(Eina_Semaphore *sem);
|
|
#ifdef EINA_HAVE_OSX_SPINLOCK
|
|
EAPI Eina_Lock_Result _eina_spinlock_macos_take(Eina_Spinlock *spinlock);
|
|
EAPI Eina_Lock_Result _eina_spinlock_macos_take_try(Eina_Spinlock *spinlock);
|
|
EAPI Eina_Lock_Result _eina_spinlock_macos_release(Eina_Spinlock *spinlock);
|
|
#endif
|
|
|
|
static inline Eina_Bool
|
|
eina_lock_new(Eina_Lock *mutex)
|
|
{
|
|
return _eina_lock_new(mutex, EINA_FALSE);
|
|
}
|
|
|
|
static inline Eina_Bool
|
|
eina_lock_recursive_new(Eina_Lock *mutex)
|
|
{
|
|
return _eina_lock_new(mutex, EINA_TRUE);
|
|
}
|
|
|
|
static inline void
|
|
eina_lock_free(Eina_Lock *mutex)
|
|
{
|
|
_eina_lock_free(mutex);
|
|
}
|
|
|
|
static inline Eina_Lock_Result
|
|
eina_lock_take(Eina_Lock *mutex)
|
|
{
|
|
Eina_Lock_Result ret = EINA_LOCK_FAIL;
|
|
int ok;
|
|
|
|
#ifdef EINA_HAVE_ON_OFF_THREADS
|
|
if (!_eina_threads_activated)
|
|
{
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
assert(pthread_equal(_eina_main_loop, pthread_self()));
|
|
#endif
|
|
return EINA_LOCK_SUCCEED;
|
|
}
|
|
#endif
|
|
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
if (_eina_threads_debug)
|
|
{
|
|
struct timeval t0, t1;
|
|
int dt;
|
|
|
|
gettimeofday(&t0, NULL);
|
|
ok = pthread_mutex_lock(&(mutex->mutex));
|
|
gettimeofday(&t1, NULL);
|
|
|
|
dt = (t1.tv_sec - t0.tv_sec) * 1000000;
|
|
if (t1.tv_usec > t0.tv_usec)
|
|
dt += (t1.tv_usec - t0.tv_usec);
|
|
else
|
|
dt -= t0.tv_usec - t1.tv_usec;
|
|
dt /= 1000;
|
|
|
|
if (dt > _eina_threads_debug) abort();
|
|
}
|
|
else
|
|
{
|
|
#endif
|
|
ok = pthread_mutex_lock(&(mutex->mutex));
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
}
|
|
#endif
|
|
|
|
if (ok == 0) ret = EINA_LOCK_SUCCEED;
|
|
else if (ok == EDEADLK)
|
|
{
|
|
eina_lock_debug(mutex);
|
|
ret = EINA_LOCK_DEADLOCK;
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
if (_eina_threads_debug) abort();
|
|
#endif
|
|
}
|
|
else EINA_LOCK_ABORT_DEBUG(ok, lock, mutex);
|
|
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
mutex->locked = 1;
|
|
mutex->lock_thread_id = pthread_self();
|
|
mutex->lock_bt_num = backtrace((void **)(mutex->lock_bt), EINA_LOCK_DEBUG_BT_NUM);
|
|
|
|
pthread_mutex_lock(&_eina_tracking_lock);
|
|
_eina_tracking = eina_inlist_append(_eina_tracking,
|
|
EINA_INLIST_GET(mutex));
|
|
pthread_mutex_unlock(&_eina_tracking_lock);
|
|
#endif
|
|
|
|
return ret;
|
|
}
|
|
|
|
static inline Eina_Lock_Result
|
|
eina_lock_take_try(Eina_Lock *mutex)
|
|
{
|
|
Eina_Lock_Result ret = EINA_LOCK_FAIL;
|
|
int ok;
|
|
|
|
#ifdef EINA_HAVE_ON_OFF_THREADS
|
|
if (!_eina_threads_activated)
|
|
{
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
assert(pthread_equal(_eina_main_loop, pthread_self()));
|
|
#endif
|
|
return EINA_LOCK_SUCCEED;
|
|
}
|
|
#endif
|
|
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
if (!_eina_threads_activated)
|
|
assert(pthread_equal(_eina_main_loop, pthread_self()));
|
|
#endif
|
|
|
|
ok = pthread_mutex_trylock(&(mutex->mutex));
|
|
if (ok == 0) ret = EINA_LOCK_SUCCEED;
|
|
else if (ok == EDEADLK)
|
|
{
|
|
eina_lock_debug(mutex);
|
|
ret = EINA_LOCK_DEADLOCK;
|
|
}
|
|
else if (ok != EBUSY) EINA_LOCK_ABORT_DEBUG(ok, trylock, mutex);
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
if (ret == EINA_LOCK_SUCCEED)
|
|
{
|
|
mutex->locked = 1;
|
|
mutex->lock_thread_id = pthread_self();
|
|
mutex->lock_bt_num = backtrace((void **)(mutex->lock_bt), EINA_LOCK_DEBUG_BT_NUM);
|
|
|
|
pthread_mutex_lock(&_eina_tracking_lock);
|
|
_eina_tracking = eina_inlist_append(_eina_tracking,
|
|
EINA_INLIST_GET(mutex));
|
|
pthread_mutex_unlock(&_eina_tracking_lock);
|
|
}
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
static inline Eina_Lock_Result
|
|
eina_lock_release(Eina_Lock *mutex)
|
|
{
|
|
Eina_Lock_Result ret = EINA_LOCK_FAIL;
|
|
int ok;
|
|
|
|
#ifdef EINA_HAVE_ON_OFF_THREADS
|
|
if (!_eina_threads_activated)
|
|
{
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
assert(pthread_equal(_eina_main_loop, pthread_self()));
|
|
#endif
|
|
return EINA_LOCK_SUCCEED;
|
|
}
|
|
#endif
|
|
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
pthread_mutex_lock(&_eina_tracking_lock);
|
|
_eina_tracking = eina_inlist_remove(_eina_tracking,
|
|
EINA_INLIST_GET(mutex));
|
|
pthread_mutex_unlock(&_eina_tracking_lock);
|
|
|
|
mutex->locked = 0;
|
|
mutex->lock_thread_id = 0;
|
|
memset(mutex->lock_bt, 0, EINA_LOCK_DEBUG_BT_NUM * sizeof(Eina_Lock_Bt_Func));
|
|
mutex->lock_bt_num = 0;
|
|
#endif
|
|
ok = pthread_mutex_unlock(&(mutex->mutex));
|
|
if (ok == 0) ret = EINA_LOCK_SUCCEED;
|
|
else if (ok == EPERM) ret = EINA_LOCK_FAIL;
|
|
else EINA_LOCK_ABORT_DEBUG(ok, unlock, mutex);
|
|
return ret;
|
|
}
|
|
|
|
static inline Eina_Bool
|
|
eina_condition_new(Eina_Condition *cond, Eina_Lock *mutex)
|
|
{
|
|
return _eina_condition_new(cond, mutex);
|
|
}
|
|
|
|
static inline void
|
|
eina_condition_free(Eina_Condition *cond)
|
|
{
|
|
_eina_condition_free(cond);
|
|
}
|
|
|
|
static inline Eina_Bool
|
|
eina_condition_wait(Eina_Condition *cond)
|
|
{
|
|
Eina_Bool r = EINA_FALSE;
|
|
int ok;
|
|
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
assert(_eina_threads_activated);
|
|
assert(cond->lock != NULL);
|
|
|
|
pthread_mutex_lock(&_eina_tracking_lock);
|
|
_eina_tracking = eina_inlist_remove(_eina_tracking,
|
|
EINA_INLIST_GET(cond->lock));
|
|
pthread_mutex_unlock(&_eina_tracking_lock);
|
|
#endif
|
|
|
|
ok = pthread_cond_wait(&(cond->condition), &(cond->lock->mutex));
|
|
if (ok == 0) r = EINA_TRUE;
|
|
else if (ok == EPERM) r = EINA_FALSE;
|
|
else EINA_LOCK_ABORT_DEBUG(ok, cond_wait, cond);
|
|
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
pthread_mutex_lock(&_eina_tracking_lock);
|
|
_eina_tracking = eina_inlist_append(_eina_tracking,
|
|
EINA_INLIST_GET(cond->lock));
|
|
pthread_mutex_unlock(&_eina_tracking_lock);
|
|
#endif
|
|
|
|
return r;
|
|
}
|
|
|
|
static inline Eina_Bool
|
|
eina_condition_timedwait(Eina_Condition *cond, double t)
|
|
{
|
|
struct timespec ts;
|
|
time_t sec;
|
|
long nsec;
|
|
int err;
|
|
Eina_Bool r = EINA_FALSE;
|
|
|
|
if (t >= 0.0)
|
|
{
|
|
#if defined(__clockid_t_defined)
|
|
if (cond->clkid)
|
|
{
|
|
if (clock_gettime(cond->clkid, &ts) != 0) return EINA_FALSE;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
/* Obsolete for Linux.
|
|
* TODO: use pthread_cond_timedwait_relative_np for OSX. */
|
|
struct timeval tv;
|
|
if (gettimeofday(&tv, NULL) != 0) return EINA_FALSE;
|
|
ts.tv_sec = tv.tv_sec;
|
|
ts.tv_nsec = tv.tv_usec * 1000L;
|
|
}
|
|
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
assert(_eina_threads_activated);
|
|
assert(cond->lock != NULL);
|
|
|
|
pthread_mutex_lock(&_eina_tracking_lock);
|
|
_eina_tracking = eina_inlist_remove(_eina_tracking,
|
|
EINA_INLIST_GET(cond->lock));
|
|
pthread_mutex_unlock(&_eina_tracking_lock);
|
|
#endif
|
|
|
|
sec = (time_t)t;
|
|
nsec = (t - (double)sec) * 1000000000L;
|
|
ts.tv_sec += sec;
|
|
ts.tv_nsec += nsec;
|
|
if (ts.tv_nsec > 1000000000L)
|
|
{
|
|
ts.tv_sec++;
|
|
ts.tv_nsec -= 1000000000L;
|
|
}
|
|
|
|
err = pthread_cond_timedwait(&(cond->condition),
|
|
&(cond->lock->mutex),
|
|
&ts);
|
|
if (err == 0) r = EINA_TRUE;
|
|
else if (err == EPERM) eina_error_set(EPERM);
|
|
else if (err == ETIMEDOUT) eina_error_set(ETIMEDOUT);
|
|
else EINA_LOCK_ABORT_DEBUG(err, cond_timedwait, cond);
|
|
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
pthread_mutex_lock(&_eina_tracking_lock);
|
|
_eina_tracking = eina_inlist_append(_eina_tracking,
|
|
EINA_INLIST_GET(cond->lock));
|
|
pthread_mutex_unlock(&_eina_tracking_lock);
|
|
#endif
|
|
}
|
|
errno = EINVAL;
|
|
return r;
|
|
}
|
|
|
|
static inline Eina_Bool
|
|
eina_condition_broadcast(Eina_Condition *cond)
|
|
{
|
|
int ok;
|
|
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
assert(cond->lock != NULL);
|
|
#endif
|
|
|
|
ok = pthread_cond_broadcast(&(cond->condition));
|
|
if (ok == 0) return EINA_TRUE;
|
|
|
|
EINA_LOCK_ABORT_DEBUG(ok, cond_broadcast, cond);
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
static inline Eina_Bool
|
|
eina_condition_signal(Eina_Condition *cond)
|
|
{
|
|
int ok;
|
|
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
assert(cond->lock != NULL);
|
|
#endif
|
|
|
|
ok = pthread_cond_signal(&(cond->condition));
|
|
if (ok == 0) return EINA_TRUE;
|
|
|
|
EINA_LOCK_ABORT_DEBUG(ok, cond_signal, cond);
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
static inline Eina_Bool
|
|
eina_rwlock_new(Eina_RWLock *mutex)
|
|
{
|
|
return _eina_rwlock_new(mutex);
|
|
}
|
|
|
|
static inline void
|
|
eina_rwlock_free(Eina_RWLock *mutex)
|
|
{
|
|
_eina_rwlock_free(mutex);
|
|
}
|
|
|
|
static inline Eina_Lock_Result
|
|
eina_rwlock_take_read(Eina_RWLock *mutex)
|
|
{
|
|
int ok;
|
|
|
|
#ifdef EINA_HAVE_ON_OFF_THREADS
|
|
if (!_eina_threads_activated)
|
|
{
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
assert(pthread_equal(_eina_main_loop, pthread_self()));
|
|
#endif
|
|
return EINA_LOCK_SUCCEED;
|
|
}
|
|
#endif
|
|
|
|
ok = pthread_rwlock_rdlock(&(mutex->mutex));
|
|
if (ok == 0) return EINA_LOCK_SUCCEED;
|
|
else if (ok == EAGAIN || ok == ENOMEM) return EINA_LOCK_FAIL;
|
|
else if (ok == EDEADLK) EINA_LOCK_DEADLOCK_DEBUG(rwlock_rdlock, mutex);
|
|
else EINA_LOCK_ABORT_DEBUG(ok, rwlock_rdlock, mutex);
|
|
return EINA_LOCK_FAIL;
|
|
}
|
|
|
|
static inline Eina_Lock_Result
|
|
eina_rwlock_take_write(Eina_RWLock *mutex)
|
|
{
|
|
int ok;
|
|
|
|
#ifdef EINA_HAVE_ON_OFF_THREADS
|
|
if (!_eina_threads_activated)
|
|
{
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
assert(pthread_equal(_eina_main_loop, pthread_self()));
|
|
#endif
|
|
return EINA_LOCK_SUCCEED;
|
|
}
|
|
#endif
|
|
|
|
ok = pthread_rwlock_wrlock(&(mutex->mutex));
|
|
if (ok == 0) return EINA_LOCK_SUCCEED;
|
|
else if (ok == ENOMEM) return EINA_LOCK_FAIL;
|
|
else if (ok == EDEADLK) EINA_LOCK_DEADLOCK_DEBUG(rwlock_wrlock, mutex);
|
|
else EINA_LOCK_ABORT_DEBUG(ok, rwlock_wrlock, mutex);
|
|
return EINA_LOCK_FAIL;
|
|
}
|
|
|
|
static inline Eina_Lock_Result
|
|
eina_rwlock_release(Eina_RWLock *mutex)
|
|
{
|
|
int ok;
|
|
|
|
#ifdef EINA_HAVE_ON_OFF_THREADS
|
|
if (!_eina_threads_activated)
|
|
{
|
|
#ifdef EINA_HAVE_DEBUG_THREADS
|
|
assert(pthread_equal(_eina_main_loop, pthread_self()));
|
|
#endif
|
|
return EINA_LOCK_SUCCEED;
|
|
}
|
|
#endif
|
|
|
|
ok = pthread_rwlock_unlock(&(mutex->mutex));
|
|
if (ok == 0) return EINA_LOCK_SUCCEED;
|
|
else if (ok == EPERM) return EINA_LOCK_FAIL;
|
|
else EINA_LOCK_ABORT_DEBUG(ok, rwlock_unlock, mutex);
|
|
return EINA_LOCK_FAIL;
|
|
}
|
|
|
|
static inline Eina_Bool
|
|
eina_tls_cb_new(Eina_TLS *key, Eina_TLS_Delete_Cb delete_cb)
|
|
{
|
|
if (pthread_key_create(key, delete_cb) == 0) return EINA_TRUE;
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
static inline Eina_Bool
|
|
eina_tls_new(Eina_TLS *key)
|
|
{
|
|
return eina_tls_cb_new(key, NULL);
|
|
}
|
|
|
|
static inline void
|
|
eina_tls_free(Eina_TLS key)
|
|
{
|
|
pthread_key_delete(key);
|
|
}
|
|
|
|
static inline void *
|
|
eina_tls_get(Eina_TLS key)
|
|
{
|
|
return pthread_getspecific(key);
|
|
}
|
|
|
|
static inline Eina_Bool
|
|
eina_tls_set(Eina_TLS key, const void *data)
|
|
{
|
|
if (pthread_setspecific(key, data) == 0) return EINA_TRUE;
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
|
|
#ifdef EINA_HAVE_PTHREAD_BARRIER
|
|
typedef struct _Eina_Barrier Eina_Barrier;
|
|
|
|
struct _Eina_Barrier
|
|
{
|
|
pthread_barrier_t barrier;
|
|
};
|
|
|
|
static inline Eina_Bool
|
|
eina_barrier_wait(Eina_Barrier *barrier)
|
|
{
|
|
int ok = pthread_barrier_wait(&(barrier->barrier));
|
|
if (ok == 0) return EINA_TRUE;
|
|
else EINA_LOCK_ABORT_DEBUG(ok, barrier_wait, barrier);
|
|
return EINA_TRUE;
|
|
}
|
|
|
|
#else
|
|
#include "eina_inline_lock_barrier.x"
|
|
#endif
|
|
|
|
EAPI Eina_Bool _eina_barrier_new(Eina_Barrier *barrier, int needed);
|
|
EAPI void _eina_barrier_free(Eina_Barrier *barrier);
|
|
|
|
static inline Eina_Bool
|
|
eina_barrier_new(Eina_Barrier *barrier, int needed)
|
|
{
|
|
return _eina_barrier_new(barrier, needed);
|
|
}
|
|
|
|
static inline void
|
|
eina_barrier_free(Eina_Barrier *barrier)
|
|
{
|
|
_eina_barrier_free(barrier);
|
|
}
|
|
|
|
|
|
static inline Eina_Bool
|
|
eina_spinlock_new(Eina_Spinlock *spinlock)
|
|
{
|
|
return _eina_spinlock_new(spinlock);
|
|
}
|
|
|
|
static inline void
|
|
eina_spinlock_free(Eina_Spinlock *spinlock)
|
|
{
|
|
_eina_spinlock_free(spinlock);
|
|
}
|
|
|
|
static inline Eina_Lock_Result
|
|
eina_spinlock_take(Eina_Spinlock *spinlock)
|
|
{
|
|
#if defined(EINA_HAVE_POSIX_SPINLOCK)
|
|
int t;
|
|
|
|
for (;;)
|
|
{
|
|
t = pthread_spin_lock(spinlock);
|
|
if (t == 0) break;
|
|
else EINA_LOCK_ABORT_DEBUG(t, spin_lock, spinlock);
|
|
}
|
|
|
|
return EINA_LOCK_SUCCEED;
|
|
#elif defined(EINA_HAVE_OSX_SPINLOCK)
|
|
return _eina_spinlock_macos_take(spinlock);
|
|
#else
|
|
return eina_lock_take(spinlock);
|
|
#endif
|
|
}
|
|
|
|
static inline Eina_Lock_Result
|
|
eina_spinlock_take_try(Eina_Spinlock *spinlock)
|
|
{
|
|
#if defined(EINA_HAVE_POSIX_SPINLOCK)
|
|
int t = pthread_spin_trylock(spinlock);
|
|
if (t == 0) return EINA_LOCK_SUCCEED;
|
|
else if (t == EBUSY) return EINA_LOCK_FAIL;
|
|
else EINA_LOCK_ABORT_DEBUG(t, spin_trylock, spinlock);
|
|
return EINA_LOCK_FAIL;
|
|
#elif defined(EINA_HAVE_OSX_SPINLOCK)
|
|
return _eina_spinlock_macos_take_try(spinlock);
|
|
#else
|
|
return eina_lock_take_try(spinlock);
|
|
#endif
|
|
}
|
|
|
|
static inline Eina_Lock_Result
|
|
eina_spinlock_release(Eina_Spinlock *spinlock)
|
|
{
|
|
#if defined(EINA_HAVE_POSIX_SPINLOCK)
|
|
int ok = pthread_spin_unlock(spinlock);
|
|
if (ok == 0) return EINA_LOCK_SUCCEED;
|
|
else if (ok == EPERM) return EINA_LOCK_FAIL;
|
|
else EINA_LOCK_ABORT_DEBUG(ok, spin_unlock, spinlock);
|
|
return EINA_LOCK_FAIL;
|
|
#elif defined(EINA_HAVE_OSX_SPINLOCK)
|
|
return _eina_spinlock_macos_release(spinlock);
|
|
#else
|
|
return eina_lock_release(spinlock);
|
|
#endif
|
|
}
|
|
|
|
static inline Eina_Bool
|
|
eina_semaphore_new(Eina_Semaphore *sem, int count_init)
|
|
{
|
|
return _eina_semaphore_new(sem, count_init);
|
|
}
|
|
|
|
static inline Eina_Bool
|
|
eina_semaphore_free(Eina_Semaphore *sem)
|
|
{
|
|
return _eina_semaphore_free(sem);
|
|
}
|
|
|
|
static inline Eina_Bool
|
|
eina_semaphore_lock(Eina_Semaphore *sem)
|
|
{
|
|
if (sem)
|
|
{
|
|
for (;;)
|
|
{
|
|
if (
|
|
#if defined(EINA_HAVE_OSX_SEMAPHORE)
|
|
semaphore_wait(*sem)
|
|
#else
|
|
sem_wait(sem)
|
|
#endif
|
|
== 0)
|
|
return EINA_TRUE;
|
|
else if (errno != EINTR) goto err;
|
|
}
|
|
}
|
|
return EINA_FALSE;
|
|
err:
|
|
if (errno == EDEADLK) EINA_LOCK_DEADLOCK_DEBUG(sem_wait, sem);
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
static inline Eina_Bool
|
|
eina_semaphore_release(Eina_Semaphore *sem, int count_release EINA_UNUSED)
|
|
{
|
|
if (sem)
|
|
#if defined(EINA_HAVE_OSX_SEMAPHORE)
|
|
return (semaphore_signal(*sem) == KERN_SUCCESS) ? EINA_TRUE : EINA_FALSE;
|
|
#else
|
|
return (sem_post(sem) == 0) ? EINA_TRUE : EINA_FALSE;
|
|
#endif
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
#undef _XOPEN_SOURCE
|
|
// This is necessary to let third party still define this macro
|
|
#ifdef EINA_XOPEN_SOURCE
|
|
# define _XOPEN_SOURCE EINA_XOPEN_SOURCE
|
|
#endif
|
|
|
|
#endif
|