| /* |
| * 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 */ |