mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2024-11-18 10:21:01 +03:00
715f625146
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@114 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
/*
|
|
* This file is part of the SPL: Solaris Porting Layer.
|
|
*
|
|
* Copyright (c) 2008 Lawrence Livermore National Security, LLC.
|
|
* Produced at Lawrence Livermore National Laboratory
|
|
* Written by:
|
|
* Brian Behlendorf <behlendorf1@llnl.gov>,
|
|
* Herb Wartens <wartens2@llnl.gov>,
|
|
* Jim Garlick <garlick@llnl.gov>
|
|
* UCRL-CODE-235197
|
|
*
|
|
* This is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#ifndef _SPL_CONDVAR_H
|
|
#define _SPL_CONDVAR_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/wait.h>
|
|
#include <sys/mutex.h>
|
|
|
|
/* The kcondvar_t struct is protected by mutex taken externally before
|
|
* calling any of the wait/signal funs, and passed into the wait funs.
|
|
*/
|
|
#define CV_MAGIC 0x346545f4
|
|
#define CV_POISON 0x95
|
|
|
|
typedef struct {
|
|
int cv_magic;
|
|
char *cv_name;
|
|
int cv_name_size;
|
|
wait_queue_head_t cv_event;
|
|
atomic_t cv_waiters;
|
|
kmutex_t *cv_mutex;
|
|
spinlock_t cv_lock;
|
|
} kcondvar_t;
|
|
|
|
typedef enum { CV_DEFAULT=0, CV_DRIVER } kcv_type_t;
|
|
|
|
extern void __cv_init(kcondvar_t *cvp, char *name, kcv_type_t type, void *arg);
|
|
extern void __cv_destroy(kcondvar_t *cvp);
|
|
extern void __cv_wait(kcondvar_t *cvp, kmutex_t *mp);
|
|
extern clock_t __cv_timedwait(kcondvar_t *cvp, kmutex_t *mp,
|
|
clock_t expire_time);
|
|
extern void __cv_signal(kcondvar_t *cvp);
|
|
extern void __cv_broadcast(kcondvar_t *cvp);
|
|
|
|
#define cv_init(cvp, name, type, arg) \
|
|
({ \
|
|
if ((name) == NULL) \
|
|
__cv_init(cvp, #cvp, type, arg); \
|
|
else \
|
|
__cv_init(cvp, name, type, arg); \
|
|
})
|
|
#define cv_destroy(cvp) __cv_destroy(cvp)
|
|
#define cv_wait(cvp, mp) __cv_wait(cvp, mp)
|
|
#define cv_timedwait(cvp, mp, t) __cv_timedwait(cvp, mp, t)
|
|
#define cv_signal(cvp) __cv_signal(cvp)
|
|
#define cv_broadcast(cvp) __cv_broadcast(cvp)
|
|
|
|
#endif /* _SPL_CONDVAR_H */
|