From e5fcad302d86d316390c6b0f62759a067313e8a9 Mon Sep 17 00:00:00 2001
From: Lars Knoll <lars.knoll@nokia.com>
Date: Mon, 23 Mar 2009 10:18:55 +0100
Subject: Long live Qt 4.5!

---
 src/corelib/concurrent/qthreadpool_p.h | 107 +++++++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 src/corelib/concurrent/qthreadpool_p.h

(limited to 'src/corelib/concurrent/qthreadpool_p.h')

diff --git a/src/corelib/concurrent/qthreadpool_p.h b/src/corelib/concurrent/qthreadpool_p.h
new file mode 100644
index 0000000000..6948ee14a9
--- /dev/null
+++ b/src/corelib/concurrent/qthreadpool_p.h
@@ -0,0 +1,107 @@
+/****************************************************************************
+**
+** 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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QTHREADPOOL_P_H
+#define QTHREADPOOL_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+//
+
+#include "QtCore/qmutex.h"
+#include "QtCore/qwaitcondition.h"
+#include "QtCore/qset.h"
+#include "QtCore/qqueue.h"
+#include "private/qobject_p.h"
+
+#ifndef QT_NO_THREAD
+
+QT_BEGIN_NAMESPACE
+
+class QThreadPoolThread;
+class QThreadPoolPrivate : public QObjectPrivate
+{
+    Q_DECLARE_PUBLIC(QThreadPool)
+    friend class QThreadPoolThread;
+
+public:
+    QThreadPoolPrivate();
+
+    bool tryStart(QRunnable *task);
+    void enqueueTask(QRunnable *task, int priority = 0);
+    int activeThreadCount() const;
+
+    void tryToStartMoreThreads();
+    bool tooManyThreadsActive() const;
+
+    void startThread(QRunnable *runnable = 0);
+    void reset();
+    void waitForDone();
+    bool startFrontRunnable();
+    void stealRunnable(QRunnable *);
+
+    mutable QMutex mutex;
+    QWaitCondition runnableReady;
+    QSet<QThreadPoolThread *> allThreads;
+    QQueue<QThreadPoolThread *> expiredThreads;
+    QList<QPair<QRunnable *, int> > queue;
+    QWaitCondition noActiveThreads;
+
+    bool isExiting;
+    int expiryTimeout;
+    int maxThreadCount;
+    int reservedThreads;
+    int waitingThreads;
+    int activeThreads;
+};
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_THREAD
+#endif
-- 
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