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/****************************************************************************
**
** 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 QPROCESS_P_H
#define QPROCESS_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/qprocess.h"
#include "QtCore/qstringlist.h"
#include "private/qringbuffer_p.h"
#include "private/qiodevice_p.h"
#ifdef Q_OS_WIN
#include "QtCore/qt_windows.h"
typedef HANDLE Q_PIPE;
#define INVALID_Q_PIPE INVALID_HANDLE_VALUE
#else
typedef int Q_PIPE;
#define INVALID_Q_PIPE -1
#endif
#ifndef QT_NO_PROCESS
QT_BEGIN_NAMESPACE
class QSocketNotifier;
class QWindowsPipeWriter;
class QWinEventNotifier;
class QTimer;
class QProcessPrivate : public QIODevicePrivate
{
public:
Q_DECLARE_PUBLIC(QProcess)
struct Channel {
enum ProcessChannelType {
Normal = 0,
PipeSource = 1,
PipeSink = 2,
Redirect = 3
// if you add "= 4" here, increase the number of bits below
};
Channel() : process(0), notifier(0), type(Normal), closed(false), append(false)
{
pipe[0] = INVALID_Q_PIPE;
pipe[1] = INVALID_Q_PIPE;
}
void clear();
Channel &operator=(const QString &fileName)
{
clear();
file = fileName;
type = fileName.isEmpty() ? Normal : Redirect;
return *this;
}
void pipeTo(QProcessPrivate *other)
{
clear();
process = other;
type = PipeSource;
}
void pipeFrom(QProcessPrivate *other)
{
clear();
process = other;
type = PipeSink;
}
QString file;
QProcessPrivate *process;
QSocketNotifier *notifier;
Q_PIPE pipe[2];
unsigned type : 2;
bool closed : 1;
bool append : 1;
};
QProcessPrivate();
virtual ~QProcessPrivate();
// private slots
bool _q_canReadStandardOutput();
bool _q_canReadStandardError();
bool _q_canWrite();
bool _q_startupNotification();
bool _q_processDied();
void _q_notified();
QProcess::ProcessChannel processChannel;
QProcess::ProcessChannelMode processChannelMode;
QProcess::ProcessError processError;
QProcess::ProcessState processState;
QString workingDirectory;
Q_PID pid;
int sequenceNumber;
bool dying;
bool emittedReadyRead;
bool emittedBytesWritten;
Channel stdinChannel;
Channel stdoutChannel;
Channel stderrChannel;
bool createChannel(Channel &channel);
void closeWriteChannel();
QString program;
QStringList arguments;
QStringList environment;
QRingBuffer outputReadBuffer;
QRingBuffer errorReadBuffer;
QRingBuffer writeBuffer;
Q_PIPE childStartedPipe[2];
Q_PIPE deathPipe[2];
void destroyPipe(Q_PIPE pipe[2]);
QSocketNotifier *startupSocketNotifier;
QSocketNotifier *deathNotifier;
// the wonderful windows notifier
QTimer *notifier;
QWindowsPipeWriter *pipeWriter;
QWinEventNotifier *processFinishedNotifier;
void startProcess();
#ifdef Q_OS_UNIX
void execChild(const char *workingDirectory, char **path, char **argv, char **envp);
#endif
bool processStarted();
void terminateProcess();
void killProcess();
void findExitCode();
#ifdef Q_OS_UNIX
bool waitForDeadChild();
#endif
#ifdef Q_OS_WIN
void flushPipeWriter();
qint64 pipeWriterBytesToWrite() const;
#endif
static bool startDetached(const QString &program, const QStringList &arguments, const QString &workingDirectory = QString(),
qint64 *pid = 0);
int exitCode;
QProcess::ExitStatus exitStatus;
bool crashed;
#ifdef Q_OS_UNIX
int serial;
#endif
bool waitForStarted(int msecs = 30000);
bool waitForReadyRead(int msecs = 30000);
bool waitForBytesWritten(int msecs = 30000);
bool waitForFinished(int msecs = 30000);
bool waitForWrite(int msecs = 30000);
qint64 bytesAvailableFromStdout() const;
qint64 bytesAvailableFromStderr() const;
qint64 readFromStdout(char *data, qint64 maxlen);
qint64 readFromStderr(char *data, qint64 maxlen);
qint64 writeToStdin(const char *data, qint64 maxlen);
void cleanup();
#ifdef Q_OS_UNIX
static void initializeProcessManager();
#endif
};
QT_END_NAMESPACE
#endif // QT_NO_PROCESS
#endif // QPROCESS_P_H
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