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https://github.com/ceph/ceph
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c80eca7fce
git-svn-id: https://ceph.svn.sf.net/svnroot/ceph@1019 29311d96-e01e-0410-9327-a35deaab8ce9
50 lines
935 B
C++
50 lines
935 B
C++
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
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/*
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* Ceph - scalable distributed file system
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*
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* Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
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*
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* This is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software
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* Foundation. See file COPYING.
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*
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*/
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#ifndef _RWLock_Posix_
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#define _RWLock_Posix_
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#include <pthread.h>
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class RWLock
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{
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mutable pthread_rwlock_t L;
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public:
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RWLock() {
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pthread_rwlock_init(&L, NULL);
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}
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virtual ~RWLock() {
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pthread_rwlock_unlock(&L);
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pthread_rwlock_destroy(&L);
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}
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void unlock() {
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pthread_rwlock_unlock(&L);
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}
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void get_read() {
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pthread_rwlock_rdlock(&L);
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}
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void put_read() { unlock(); }
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void get_write() {
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pthread_rwlock_wrlock(&L);
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}
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void put_write() { unlock(); }
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};
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#endif // !_Mutex_Posix_
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