freebsd-nq/lib/libspl/include/synch.h
Brian Behlendorf 02730c333c Use cstyle -cpP in make cstyle check
Enable picky cstyle checks and resolve the new warnings.  The vast
majority of the changes needed were to handle minor issues with
whitespace formatting.  This patch contains no functional changes.

Non-whitespace changes are as follows:

* 8 times ; to { } in for/while loop
* fix missing ; in cmd/zed/agents/zfs_diagnosis.c
* comment (confim -> confirm)
* change endline , to ; in cmd/zpool/zpool_main.c
* a number of /* BEGIN CSTYLED */ /* END CSTYLED */ blocks
* /* CSTYLED */ markers
* change == 0 to !
* ulong to unsigned long in module/zfs/dsl_scan.c
* rearrangement of module_param lines in module/zfs/metaslab.c
* add { } block around statement after for_each_online_node

Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Reviewed-by: Håkan Johansson <f96hajo@chalmers.se>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #5465
2016-12-12 10:46:26 -08:00

82 lines
2.2 KiB
C

/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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
* or http://www.opensolaris.org/os/licensing.
* 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
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Copyright 2014 Zettabyte Software, LLC. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _LIBSPL_SYNCH_H
#define _LIBSPL_SYNCH_H
#ifndef __sun__
#include <assert.h>
#include <pthread.h>
/*
* Definitions of synchronization types.
*/
#define USYNC_THREAD 0x00 /* private to a process */
#define USYNC_PROCESS 0x01 /* shared by processes */
typedef pthread_rwlock_t rwlock_t;
#define DEFAULTRWLOCK PTHREAD_RWLOCK_INITIALIZER
static inline int
rwlock_init(rwlock_t *rwlp, int type, void *arg)
{
pthread_rwlockattr_t attr;
int err = 0;
VERIFY0(pthread_rwlockattr_init(&attr));
switch (type) {
case USYNC_THREAD:
VERIFY0(pthread_rwlockattr_setpshared(&attr,
PTHREAD_PROCESS_PRIVATE));
break;
case USYNC_PROCESS:
VERIFY0(pthread_rwlockattr_setpshared(&attr,
PTHREAD_PROCESS_SHARED));
break;
default:
VERIFY0(1);
}
err = pthread_rwlock_init(rwlp, &attr);
VERIFY0(pthread_rwlockattr_destroy(&attr));
return (err);
}
#define rwlock_destroy(x) pthread_rwlock_destroy((x))
#define rw_rdlock(x) pthread_rwlock_rdlock((x))
#define rw_wrlock(x) pthread_rwlock_wrlock((x))
#define rw_unlock(x) pthread_rwlock_unlock((x))
#define rw_tryrdlock(x) pthread_rwlock_tryrdlock((x))
#define rw_trywrlock(x) pthread_rwlock_trywrlock((x))
#endif /* __sun__ */
#endif