X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=mutex.h;h=4f3486df7a3b01163515cd548678445d7e40b924;hp=85f5f69cee0724069d60d72d9761e2cfc19efccd;hb=fdc0f3b646e417497849d4398029f780b0e5262f;hpb=cdd18ad87ed9a3639b76c41cfc9682ad7cce652e

diff --git a/mutex.h b/mutex.h
index 85f5f69c..4f3486df 100644
--- a/mutex.h
+++ b/mutex.h
@@ -3,17 +3,37 @@
 
 #include <pthread.h>
 
+#define FIO_MUTEX_MAGIC		0x4d555445U
+#define FIO_RWLOCK_MAGIC	0x52574c4fU
+
 struct fio_mutex {
 	pthread_mutex_t lock;
 	pthread_cond_t cond;
-	unsigned int value;
+	int value;
+	int waiters;
+	int magic;
+};
 
-	int mutex_fd;
+struct fio_rwlock {
+	pthread_rwlock_t lock;
+	int magic;
+};
+
+enum {
+	FIO_MUTEX_LOCKED	= 0,
+	FIO_MUTEX_UNLOCKED	= 1,
 };
 
 extern struct fio_mutex *fio_mutex_init(int);
 extern void fio_mutex_remove(struct fio_mutex *);
-extern inline void fio_mutex_down(struct fio_mutex *);
-extern inline void fio_mutex_up(struct fio_mutex *);
+extern void fio_mutex_up(struct fio_mutex *);
+extern void fio_mutex_down(struct fio_mutex *);
+extern int fio_mutex_down_timeout(struct fio_mutex *, unsigned int);
+
+extern void fio_rwlock_read(struct fio_rwlock *);
+extern void fio_rwlock_write(struct fio_rwlock *);
+extern void fio_rwlock_unlock(struct fio_rwlock *);
+extern struct fio_rwlock *fio_rwlock_init(void);
+extern void fio_rwlock_remove(struct fio_rwlock *);
 
 #endif