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git://xwords.git.sourceforge.net/gitroot/xwords/xwords
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130 lines
3.1 KiB
C
130 lines
3.1 KiB
C
/* -*-mode: C; fill-column: 78; c-basic-offset: 4; -*- */
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/*
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* Copyright 2005 by Eric House (xwords@eehouse.org). All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef _MLOCK_H_
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#define _MLOCK_H_
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#include <pthread.h>
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#include "xwrelay_priv.h"
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#include "cref.h"
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#include "crefmgr.h"
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class MutexLock {
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public:
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MutexLock( pthread_mutex_t* mutex ) {
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m_mutex = mutex;
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#ifdef DEBUG_LOCKS
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logf( XW_LOGINFO, "tlm %p", mutex );
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#endif
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pthread_mutex_lock( mutex );
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#ifdef DEBUG_LOCKS
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logf( XW_LOGINFO, "slm %p", mutex );
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#endif
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}
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~MutexLock() {
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#ifdef DEBUG_LOCKS
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logf( XW_LOGINFO, "ULM %p", m_mutex );
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#endif
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pthread_mutex_unlock( m_mutex );
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}
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private:
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pthread_mutex_t* m_mutex;
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};
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class SocketWriteLock {
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public:
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SocketWriteLock( int socket )
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: m_socket( socket )
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, m_mutex( CRefMgr::Get()->GetWriteMutexForSocket( socket ) )
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{
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#ifdef DEBUG_LOCKS
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logf( XW_LOGINFO, "tlm %p for socket %d", m_mutex, socket );
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#endif
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if ( m_mutex != NULL ) {
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pthread_mutex_lock( m_mutex );
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}
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#ifdef DEBUG_LOCKS
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logf( XW_LOGINFO, "slm %p for socket %d", m_mutex, socket );
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#endif
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}
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~SocketWriteLock() {
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#ifdef DEBUG_LOCKS
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logf( XW_LOGINFO, "ULM %p for socket %d", m_mutex, m_socket );
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#endif
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if ( m_mutex != NULL ) {
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pthread_mutex_unlock( m_mutex );
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}
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}
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bool socketFound() { return (m_mutex != NULL); }
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private:
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int m_socket;
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pthread_mutex_t* m_mutex;
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};
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class RWReadLock {
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public:
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RWReadLock( pthread_rwlock_t* rwl ) {
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#ifdef DEBUG_LOCKS
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logf( XW_LOGINFO, "tlrr %p", rwl );
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#endif
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pthread_rwlock_rdlock( rwl );
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#ifdef DEBUG_LOCKS
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logf( XW_LOGINFO, "slrr %p", rwl );
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#endif
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_rwl = rwl;
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}
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~RWReadLock() {
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pthread_rwlock_unlock( _rwl );
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#ifdef DEBUG_LOCKS
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logf( XW_LOGINFO, "ULRR %p", _rwl );
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#endif
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}
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private:
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pthread_rwlock_t* _rwl;
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};
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class RWWriteLock {
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public:
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RWWriteLock( pthread_rwlock_t* rwl ) : _rwl(rwl) {
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#ifdef DEBUG_LOCKS
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logf( XW_LOGINFO, "tlww %p", rwl );
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#endif
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pthread_rwlock_wrlock( rwl );
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#ifdef DEBUG_LOCKS
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logf( XW_LOGINFO, "slww %p", rwl );
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#endif
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}
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~RWWriteLock() {
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pthread_rwlock_unlock( _rwl );
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#ifdef DEBUG_LOCKS
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logf( XW_LOGINFO, "ULWW %p", _rwl );
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#endif
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}
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private:
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pthread_rwlock_t* _rwl;
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};
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#endif
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