mutex: abstract out cond/lock pshared init

[fio.git] / mutex.h

diff --git a/mutex.h b/mutex.h
index c4b0d8edcc3e30e635b42085b095c4bb786d2343..54009bae4ae081094172da149814dcea6e4e7eec 100644 (file)
--- a/mutex.h
+++ b/mutex.h
@@ -2,18 +2,46 @@
 #define FIO_MUTEX_H
 
 #include <pthread.h>
+#include "lib/types.h"
 
-struct fio_sem {
+#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 sem_fd;
+enum {
+       FIO_MUTEX_LOCKED        = 0,
+       FIO_MUTEX_UNLOCKED      = 1,
 };
 
-extern struct fio_sem *fio_sem_init(int);
-extern void fio_sem_remove(struct fio_sem *);
-extern inline void fio_sem_down(struct fio_sem *);
-extern inline void fio_sem_up(struct fio_sem *sem);
+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_remove(struct fio_mutex *);
+extern void fio_mutex_up(struct fio_mutex *);
+extern void fio_mutex_down(struct fio_mutex *);
+extern bool 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 *);
+
+extern int mutex_init_pshared(pthread_mutex_t *);
+extern int cond_init_pshared(pthread_cond_t *);
+extern int mutex_cond_init_pshared(pthread_mutex_t *, pthread_cond_t *);
 
 #endif