6cb8121a44
Conflicts: src/widgets/styles/qgtkstyle_p.cpp tests/auto/corelib/io/qtextstream/test/test.pro tests/auto/corelib/plugin/plugin.pro Change-Id: I512bc1b36acf3933ed2b96c00f476ee3819c1f4b
156 lines
4.4 KiB
C++
156 lines
4.4 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QWINDOWSPIPEWRITER_P_H
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#define QWINDOWSPIPEWRITER_P_H
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#include <qelapsedtimer.h>
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#include <qobject.h>
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#include <qt_windows.h>
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QT_BEGIN_NAMESPACE
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#define SLEEPMIN 10
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#define SLEEPMAX 500
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class QIncrementalSleepTimer
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{
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public:
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QIncrementalSleepTimer(int msecs)
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: totalTimeOut(msecs)
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, nextSleep(qMin(SLEEPMIN, totalTimeOut))
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{
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if (totalTimeOut == -1)
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nextSleep = SLEEPMIN;
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timer.start();
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}
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int nextSleepTime()
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{
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int tmp = nextSleep;
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nextSleep = qMin(nextSleep * 2, qMin(SLEEPMAX, timeLeft()));
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return tmp;
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}
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int timeLeft() const
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{
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if (totalTimeOut == -1)
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return SLEEPMAX;
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return qMax(int(totalTimeOut - timer.elapsed()), 0);
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}
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bool hasTimedOut() const
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{
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if (totalTimeOut == -1)
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return false;
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return timer.elapsed() >= totalTimeOut;
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}
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void resetIncrements()
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{
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nextSleep = qMin(SLEEPMIN, timeLeft());
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}
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private:
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QElapsedTimer timer;
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int totalTimeOut;
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int nextSleep;
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};
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class Q_CORE_EXPORT QWindowsPipeWriter : public QObject
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{
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Q_OBJECT
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public:
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explicit QWindowsPipeWriter(HANDLE pipeWriteEnd, QObject *parent = 0);
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~QWindowsPipeWriter();
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qint64 write(const char *data, qint64 maxlen);
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void stop();
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bool waitForWrite(int msecs);
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qint64 bytesToWrite() const;
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Q_SIGNALS:
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void canWrite();
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void bytesWritten(qint64 bytes);
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void _q_queueBytesWritten(QPrivateSignal);
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private:
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static void CALLBACK writeFileCompleted(DWORD errorCode, DWORD numberOfBytesTransfered,
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OVERLAPPED *overlappedBase);
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void notified(DWORD errorCode, DWORD numberOfBytesWritten);
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bool waitForNotification(int timeout);
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void emitPendingBytesWrittenValue();
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class Overlapped : public OVERLAPPED
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{
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Q_DISABLE_COPY(Overlapped)
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public:
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explicit Overlapped(QWindowsPipeWriter *pipeWriter);
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void clear();
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QWindowsPipeWriter *pipeWriter;
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};
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HANDLE handle;
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Overlapped overlapped;
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qint64 numberOfBytesToWrite;
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qint64 pendingBytesWrittenValue;
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bool stopped;
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bool writeSequenceStarted;
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bool notifiedCalled;
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bool bytesWrittenPending;
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bool inBytesWritten;
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};
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QT_END_NAMESPACE
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#endif // QT_NO_PROCESS
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