/******************************************************************************** Copyright (C) 1992-2006 Trolltech ASA. All rights reserved.**** This file is part of the QtCore module of the Qt Toolkit.**** This file may be used under the terms of the GNU General Public** License version 2.0 as published by the Free Software Foundation** and appearing in the file LICENSE.GPL included in the packaging of** this file.  Please review the following information to ensure GNU** General Public Licensing requirements will be met:** http://www.trolltech.com/products/qt/opensource.html**** If you are unsure which license is appropriate for your use, please** review the following information:** http://www.trolltech.com/products/qt/licensing.html or contact the** sales department at sales@trolltech.com.**** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.******************************************************************************/#include "qplatformdefs.h"#include "qmutex.h"#include "qstring.h"#ifndef QT_NO_THREAD#include "qatomic.h"#include "qmutex_p.h"static void report_error(int code, const char *where, const char *what){    if (code != 0)        qWarning("%s: %s failure: %s", where, what, qPrintable(qt_error_string(code)));}QMutexPrivate::QMutexPrivate(QMutex::RecursionMode mode)    : lock(0), owner(0), count(0), recursive(mode == QMutex::Recursive), wakeup(false){    report_error(pthread_mutex_init(&mutex, NULL), "QMutex", "mutex init");    report_error(pthread_cond_init(&cond, NULL), "QMutex", "cv init");}QMutexPrivate::~QMutexPrivate(){    report_error(pthread_cond_destroy(&cond), "QMutex", "cv destroy");    report_error(pthread_mutex_destroy(&mutex), "QMutex", "mutex destroy");}ulong QMutexPrivate::self(){ return (ulong) pthread_self(); }void QMutexPrivate::wait(){    report_error(pthread_mutex_lock(&mutex), "QMutex::lock", "mutex lock");    while (!wakeup)        report_error(pthread_cond_wait(&cond, &mutex), "QMutex::lock", "cv wait");    wakeup = false;    report_error(pthread_mutex_unlock(&mutex), "QMutex::lock", "mutex unlock");}void QMutexPrivate::wakeUp(){    report_error(pthread_mutex_lock(&mutex), "QMutex::unlock", "mutex lock");    wakeup = true;    report_error(pthread_cond_signal(&cond), "QMutex::unlock", "cv signal");    report_error(pthread_mutex_unlock(&mutex), "QMutex::unlock", "mutex unlock");}#endif // QT_NO_THREAD