1 files changed, 113 insertions, 0 deletions
diff --git a/src/corelib/thread/qmutex_unix.cpp b/src/corelib/thread/qmutex_unix.cpp
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+++ b/src/corelib/thread/qmutex_unix.cpp
@@ -0,0 +1,113 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 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 the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qplatformdefs.h"
+#include "qmutex.h"
+#include "qstring.h"
+
+#ifndef QT_NO_THREAD
+#include "qatomic.h"
+#include "qmutex_p.h"
+
+#include <errno.h>
+
+QT_BEGIN_NAMESPACE
+
+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)
+    : recursive(mode == QMutex::Recursive), contenders(0), lastSpinCount(0), owner(0), count(0), 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");
+}
+
+bool QMutexPrivate::wait(int timeout)
+{
+    report_error(pthread_mutex_lock(&mutex), "QMutex::lock", "mutex lock");
+    int errorCode = 0;
+    while (!wakeup) {
+        if (timeout < 0) {
+            errorCode = pthread_cond_wait(&cond, &mutex);
+        } else {
+            struct timeval tv;
+            gettimeofday(&tv, 0);
+
+            timespec ti;
+            ti.tv_nsec = (tv.tv_usec + (timeout % 1000) * 1000) * 1000;
+            ti.tv_sec = tv.tv_sec + (timeout / 1000) + (ti.tv_nsec / 1000000000);
+            ti.tv_nsec %= 1000000000;
+
+            errorCode = pthread_cond_timedwait(&cond, &mutex, &ti);
+        }
+        if (errorCode) {
+            if (errorCode == ETIMEDOUT)
+                break;
+            report_error(errorCode, "QMutex::lock()", "cv wait");
+        }
+    }
+    wakeup = false;
+    report_error(pthread_mutex_unlock(&mutex), "QMutex::lock", "mutex unlock");
+    return errorCode == 0;
+}
+
+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");
+}
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_THREAD