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/*
* libusb synchronization using POSIX Threads
*
* Copyright © 2010 Peter Stuge <peter@stuge.se>
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef LIBUSB_THREADS_POSIX_H
#define LIBUSB_THREADS_POSIX_H
#include <pthread.h>
#define PTHREAD_CHECK(expression) ASSERT_EQ(expression, 0)
#define USBI_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER
typedef pthread_mutex_t usbi_mutex_static_t;
static inline void usbi_mutex_static_lock(usbi_mutex_static_t *mutex)
{
PTHREAD_CHECK(pthread_mutex_lock(mutex));
}
static inline void usbi_mutex_static_unlock(usbi_mutex_static_t *mutex)
{
PTHREAD_CHECK(pthread_mutex_unlock(mutex));
}
typedef pthread_mutex_t usbi_mutex_t;
static inline void usbi_mutex_init(usbi_mutex_t *mutex)
{
PTHREAD_CHECK(pthread_mutex_init(mutex, NULL));
}
static inline void usbi_mutex_lock(usbi_mutex_t *mutex)
{
PTHREAD_CHECK(pthread_mutex_lock(mutex));
}
static inline void usbi_mutex_unlock(usbi_mutex_t *mutex)
{
PTHREAD_CHECK(pthread_mutex_unlock(mutex));
}
static inline int usbi_mutex_trylock(usbi_mutex_t *mutex)
{
return pthread_mutex_trylock(mutex) == 0;
}
static inline void usbi_mutex_destroy(usbi_mutex_t *mutex)
{
PTHREAD_CHECK(pthread_mutex_destroy(mutex));
}
typedef pthread_cond_t usbi_cond_t;
void usbi_cond_init(pthread_cond_t *cond);
static inline void usbi_cond_wait(usbi_cond_t *cond, usbi_mutex_t *mutex)
{
PTHREAD_CHECK(pthread_cond_wait(cond, mutex));
}
int usbi_cond_timedwait(usbi_cond_t *cond,
usbi_mutex_t *mutex, const struct timeval *tv);
static inline void usbi_cond_broadcast(usbi_cond_t *cond)
{
PTHREAD_CHECK(pthread_cond_broadcast(cond));
}
static inline void usbi_cond_destroy(usbi_cond_t *cond)
{
PTHREAD_CHECK(pthread_cond_destroy(cond));
}
typedef pthread_key_t usbi_tls_key_t;
static inline void usbi_tls_key_create(usbi_tls_key_t *key)
{
PTHREAD_CHECK(pthread_key_create(key, NULL));
}
static inline void *usbi_tls_key_get(usbi_tls_key_t key)
{
return pthread_getspecific(key);
}
static inline void usbi_tls_key_set(usbi_tls_key_t key, void *ptr)
{
PTHREAD_CHECK(pthread_setspecific(key, ptr));
}
static inline void usbi_tls_key_delete(usbi_tls_key_t key)
{
PTHREAD_CHECK(pthread_key_delete(key));
}
unsigned int usbi_get_tid(void);
#endif /* LIBUSB_THREADS_POSIX_H */
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