X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=mutex.h;h=246afeed0675678e24d2535372be5d64d8793ad1;hp=0c862dba08998cc9dab9aa6f33849baa2a71f717;hb=81795ce399bef3af497e5767546458e20ce81bbf;hpb=af4bab56db4f87410c491c356954bbb65171f94d

diff --git a/mutex.h b/mutex.h
index 0c862dba..246afeed 100644
--- a/mutex.h
+++ b/mutex.h
@@ -3,17 +3,39 @@
 
 #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;
+};
+
+struct fio_rwlock {
+	pthread_rwlock_t lock;
+	int magic;
+};
 
-	int mutex_fd;
+enum {
+	FIO_MUTEX_LOCKED	= 0,
+	FIO_MUTEX_UNLOCKED	= 1,
 };
 
+extern int __fio_mutex_init(struct fio_mutex *, int);
 extern struct fio_mutex *fio_mutex_init(int);
 extern void fio_mutex_remove(struct fio_mutex *);
-extern void fio_mutex_down(struct fio_mutex *);
 extern void fio_mutex_up(struct fio_mutex *);
+extern void fio_mutex_down(struct fio_mutex *);
+extern int fio_mutex_down_trylock(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