Changes in kernel/generic/src/synch/mutex.c [d7da4284:08a19ba] in mainline

File:

• kernel/generic/src/synch/mutex.c (modified) (3 diffs)

kernel/generic/src/synch/mutex.c

@@ -33 +33 @@
 /**
  * @file
- * @brief Mutexes.
+ * @brief       Mutexes.
  */
-
+ 
 #include <synch/mutex.h>
 #include <synch/semaphore.h>
 #include <synch/synch.h>
 #include <debug.h>
-#include <arch.h>
 
 /** Initialize mutex.
  *
- * @param mtx  Mutex.
- * @param type Type of the mutex.
+ * @param mtx           Mutex.
+ * @param type          Type of the mutex.
  */
 void mutex_initialize(mutex_t *mtx, mutex_type_t type)
@@ -53 +52 @@
 }
 
-/** Find out whether the mutex is currently locked.
- *
- * @param mtx           Mutex.
- * @return              True if the mutex is locked, false otherwise.
- */
-bool mutex_locked(mutex_t *mtx)
-{
-        return semaphore_count_get(&mtx->sem) <= 0;
-}
-
 /** Acquire mutex.
  *
  * Timeout mode and non-blocking mode can be requested.
  *
- * @param mtx   Mutex.
- * @param usec  Timeout in microseconds.
- * @param flags Specify mode of operation.
+ * @param mtx           Mutex.
+ * @param usec          Timeout in microseconds.
+ * @param flags         Specify mode of operation.
  *
  * For exact description of possible combinations of
  * usec and flags, see comment for waitq_sleep_timeout().
  *
- * @return See comment for waitq_sleep_timeout().
- *
+ * @return              See comment for waitq_sleep_timeout().
  */
-int _mutex_lock_timeout(mutex_t *mtx, uint32_t usec, unsigned int flags)
+int _mutex_lock_timeout(mutex_t *mtx, uint32_t usec, int flags)
 {
         int rc;
 
-        if ((mtx->type == MUTEX_PASSIVE) && (THREAD)) {
+        if (mtx->type == MUTEX_PASSIVE) {
                 rc = _semaphore_down_timeout(&mtx->sem, usec, flags);
         } else {
-                ASSERT((mtx->type == MUTEX_ACTIVE) || (!THREAD));
+                ASSERT(mtx->type == MUTEX_ACTIVE);
                 ASSERT(usec == SYNCH_NO_TIMEOUT);
                 ASSERT(!(flags & SYNCH_FLAGS_INTERRUPTIBLE));
-                
                 do {
                         rc = semaphore_trydown(&mtx->sem);
@@ -99 +86 @@
 /** Release mutex.
  *
- * @param mtx Mutex.
+ * @param mtx           Mutex.
  */
 void mutex_unlock(mutex_t *mtx)