zrlock.h revision 744947dc83c634d985ed3ad79ac9c5e28d1865fd
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
*/
#ifndef _SYS_ZRLOCK_H
#define _SYS_ZRLOCK_H
#include <sys/zfs_context.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct zrlock {
volatile int32_t zr_refcount;
#ifdef ZFS_DEBUG
const char *zr_caller;
#endif
} zrlock_t;
extern void zrl_destroy(zrlock_t *);
#ifdef ZFS_DEBUG
extern void zrl_add_debug(zrlock_t *, const char *);
#else
#endif
extern void zrl_remove(zrlock_t *);
extern int zrl_tryenter(zrlock_t *);
extern int zrl_is_zero(zrlock_t *);
extern int zrl_is_locked(zrlock_t *);
#ifdef ZFS_DEBUG
#endif
#ifdef __cplusplus
}
#endif
#endif /* _SYS_ZRLOCK_H */