pthread_rwlock: use a mutex for process-private locks.

* instead of a benaphore. * define PTHREAD_RWLOCK_INITIALIZER. * adjust Init(), Destroy(), StructureLock() and StructureUnlock().
2017-07-27 18:33:53 +02:00
parent b34aa933ed
commit 6c9e01265b
3 changed files with 34 additions and 18 deletions
@@ -105,15 +105,15 @@ struct _pthread_rwlock {
 	__haiku_std_int32	owner;
 	union {
 		struct {
-			__haiku_std_int32	sem;
-		} shared;
-		struct {
-			__haiku_std_int32	lock_sem;
-			__haiku_std_int32	lock_count;
+			__haiku_std_int32	mutex;
+			__haiku_std_int32	unused;
 			__haiku_std_int32	reader_count;
 			__haiku_std_int32	writer_count;
 			void*				waiters[2];
 		} local;
+		struct {
+			__haiku_std_int32	sem;
+		} shared;
 	} u;
 };