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84 lines
2 KiB
C++
84 lines
2 KiB
C++
// -*- mode: c++; c-basic-offset: 4 -*-
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/*
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* This file is part of the KDE libraries
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* Copyright (C) 2005 Apple Computer, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA
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*
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*/
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#include "JSLock.h"
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#include <config-kjs.h>
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#include "collector.h"
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namespace KJS {
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#if USE(MULTIPLE_THREADS)
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static pthread_once_t interpreterLockOnce = PTHREAD_ONCE_INIT;
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static pthread_mutex_t interpreterLock;
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static int interpreterLockCount = 0;
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static void initializeJSLock()
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{
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pthread_mutexattr_t attr;
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pthread_mutexattr_init(&attr);
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pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_RECURSIVE);
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pthread_mutex_init(&interpreterLock, &attr);
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}
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void JSLock::lock()
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{
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pthread_once(&interpreterLockOnce, initializeJSLock);
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pthread_mutex_lock(&interpreterLock);
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interpreterLockCount++;
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Collector::registerThread();
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}
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void JSLock::unlock()
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{
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interpreterLockCount--;
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pthread_mutex_unlock(&interpreterLock);
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}
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int JSLock::lockCount()
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{
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return interpreterLockCount;
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}
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#endif
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JSLock::DropAllLocks::DropAllLocks()
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{
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int lockCount = JSLock::lockCount();
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for (int i = 0; i < lockCount; i++) {
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JSLock::unlock();
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}
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m_lockCount = lockCount;
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}
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JSLock::DropAllLocks::~DropAllLocks()
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{
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int lockCount = m_lockCount;
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for (int i = 0; i < lockCount; i++) {
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JSLock::lock();
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}
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}
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}
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