Changeset d7da4284 in mainline for kernel/generic/src/synch/mutex.c

Timestamp:

2010-05-25T21:34:41Z (15 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

ffe4a87

Parents:

5df7928

Message:

Add interface for testing the state of a mutex.

File:

• kernel/generic/src/synch/mutex.c (modified) (1 diff)

kernel/generic/src/synch/mutex.c

@@ -53 +53 @@
 }
 
+/** 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.
  *