X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=mutex.h;h=6fdf7c6dabceaa456d17f66040be3894c61556c8;hb=f3afa57e36550288340f1b6c694f354ae72654b9;hp=0c862dba08998cc9dab9aa6f33849baa2a71f717;hpb=af4bab56db4f87410c491c356954bbb65171f94d;p=fio.git

diff --git a/mutex.h b/mutex.h
index 0c862dba..6fdf7c6d 100644
--- a/mutex.h
+++ b/mutex.h
@@ -6,14 +6,33 @@
 struct fio_mutex {
 	pthread_mutex_t lock;
 	pthread_cond_t cond;
-	unsigned int value;
+	int value;
+	int waiters;
+};
 
-	int mutex_fd;
+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 void fio_mutex_down(struct fio_mutex *);
+extern int fio_mutex_down_timeout(struct fio_mutex *, unsigned int);
+extern void fio_mutex_down_read(struct fio_mutex *);
+extern void fio_mutex_down_write(struct fio_mutex *);
 extern void fio_mutex_up(struct fio_mutex *);
+extern void fio_mutex_up_read(struct fio_mutex *);
+extern void fio_mutex_up_write(struct fio_mutex *);
+
+static inline struct fio_mutex *fio_mutex_rw_init(void)
+{
+	return fio_mutex_init(0);
+}
+
+static inline int fio_mutex_getval(struct fio_mutex *mutex)
+{
+	return mutex->value;
+}
 
 #endif