Recursive Mutex

RecursiveMutex/RecursiveMutex.h

@@ -0,0 +1,40 @@
+#ifndef __REC_MUTEX__
+#define __REC_MUTEX__
+
+#include <pthread.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+typedef struct rec_mutex_ {
+	
+	/* number of locks by same threads*/
+	uint16_t nLocks;
+
+	/* Thread ID to lock the thread */
+	pthread_t lockingThread;
+
+	/* Condition variable to block all the other thread
+	for accessing the C.S */
+	pthread_cond_t cv;
+
+	/* mutex to provide mutual exclusiveness for 
+	changing the state of the recursive mutex */
+	pthread_mutex_t stateMutex;
+
+	/* Number of thread waiting for this mutex lock grant*/
+	uint16_t nWaited;
+}rec_mutex_t;
+
+void
+rec_mutex_init(rec_mutex_t* mutex);
+
+void
+rec_mutex_lock(rec_mutex_t* mutex);
+
+void
+rec_mutex_unlock(rec_mutex_t* mutex);
+
+void
+rec_mutex_destroy(rec_mutex_t* mutex);
+
+#endif