+/* Function MutexRemove: remove the mutex/semphore. See Mutex.c */
+inline int MutexRemove(int sem_id);
+/* Function LockMutex: acquire a mutex (using file locking). See Mutex.c */
+inline int LockFile(const char* path_name);
+/* Function UnlockMutex: release a mutex (using file locking). See Mutex.c */
+inline int UnlockFile(const char* path_name);
+