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authorQt by Nokia <qt-info@nokia.com>2011-04-27 12:05:43 +0200
committeraxis <qt-info@nokia.com>2011-04-27 12:05:43 +0200
commit38be0d13830efd2d98281c645c3a60afe05ffece (patch)
tree6ea73f3ec77f7d153333779883e8120f82820abe /src/corelib/io/qprocess_p.h
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@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 "QtCore/qhash.h"
+#include "QtCore/qshareddata.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;
+#if defined(Q_OS_SYMBIAN)
+class RProcess;
+#endif
+
+class QProcessEnvironmentPrivate: public QSharedData
+{
+public:
+#ifdef Q_OS_WIN
+ typedef QString Unit;
+#else
+ typedef QByteArray Unit;
+#endif
+ typedef QHash<Unit, Unit> Hash;
+ Hash hash;
+
+ static QProcessEnvironment fromList(const QStringList &list);
+ QStringList toList() const;
+ QStringList keys() const;
+ void insert(const Hash &hash);
+};
+
+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;
+#if defined(Q_OS_WIN) || defined(Q_OS_SYMBIAN)
+ QString nativeArguments;
+#endif
+ QProcessEnvironment 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();
+#if defined(Q_OS_UNIX) && !defined(Q_OS_SYMBIAN)
+ 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
+
+#ifdef Q_OS_SYMBIAN
+ bool processLaunched;
+ RProcess* symbianProcess;
+#endif
+};
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_PROCESS
+
+#endif // QPROCESS_P_H