| 26,20 → 26,46 |
|---|
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include <synch/synch.h> |
| #include <synch/mutex.h> |
| #include <synch/semaphore.h> |
| #include <synch/synch.h> |
| |
| /** Initialize mutex |
| * |
| * Initialize mutex. |
| * |
| * @param mtx Mutex. |
| */ |
| void mutex_initialize(mutex_t *mtx) |
| { |
| semaphore_initialize(&mtx->sem, 1); |
| } |
| |
| /** Acquire mutex |
| * |
| * Acquire mutex. |
| * Timeout mode and non-blocking mode can be requested. |
| * |
| * @param mxt Mutex. |
| * @param usec Timeout in microseconds. |
| * @param trylock Switches between blocking and non-blocking mode. |
| * |
| * For exact description of possible combinations of |
| * 'usec' and 'trylock', see comment for waitq_sleep_timeout(). |
| * |
| * @return See comment for waitq_sleep_timeout(). |
| */ |
| int _mutex_lock_timeout(mutex_t *mtx, __u32 usec, int trylock) |
| { |
| return _semaphore_down_timeout(&mtx->sem, usec, trylock); |
| } |
| |
| /** Release mutex |
| * |
| * Release mutex. |
| * |
| * @param mtx Mutex. |
| */ |
| void mutex_unlock(mutex_t *mtx) |
| { |
| semaphore_up(&mtx->sem); |