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cc119fbb48
Sponsored-by: https://despairlabs.com/sponsor/ Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Rob Norris <robn@despairlabs.com> Closes #17861
59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
// SPDX-License-Identifier: CDDL-1.0
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/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or https://opensource.org/licenses/CDDL-1.0.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
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* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
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* Copyright (c) 2012, 2018 by Delphix. All rights reserved.
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* Copyright (c) 2012, Joyent, Inc. All rights reserved.
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*/
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#ifndef _SYS_MUTEX_H
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#define _SYS_MUTEX_H
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#include <pthread.h>
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/*
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* Mutexes
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*/
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typedef struct kmutex {
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pthread_mutex_t m_lock;
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pthread_t m_owner;
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} kmutex_t;
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#define MUTEX_DEFAULT 0
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#define MUTEX_NOLOCKDEP MUTEX_DEFAULT
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#define MUTEX_HELD(mp) pthread_equal((mp)->m_owner, pthread_self())
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#define MUTEX_NOT_HELD(mp) !MUTEX_HELD(mp)
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extern void mutex_init(kmutex_t *mp, char *name, int type, void *cookie);
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extern void mutex_destroy(kmutex_t *mp);
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extern void mutex_enter(kmutex_t *mp);
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extern int mutex_enter_check_return(kmutex_t *mp);
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extern void mutex_exit(kmutex_t *mp);
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extern int mutex_tryenter(kmutex_t *mp);
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#define NESTED_SINGLE 1
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#define mutex_enter_nested(mp, class) mutex_enter(mp)
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#define mutex_enter_interruptible(mp) mutex_enter_check_return(mp)
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#endif /* _SYS_MUTEX_H */
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