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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** 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.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#ifndef SYNCHRONOUSPROCESS_H
#define SYNCHRONOUSPROCESS_H
#include "utils_global.h"
#include <QtCore/QObject>
#include <QtCore/QProcess>
#include <QtCore/QStringList>
#include <QtCore/QSharedPointer>
QT_BEGIN_NAMESPACE
class QTextCodec;
class QDebug;
QT_END_NAMESPACE
namespace Utils {
struct SynchronousProcessPrivate;
/* Result of SynchronousProcess execution */
struct QTCREATOR_UTILS_EXPORT SynchronousProcessResponse
{
enum Result {
// Finished with return code 0
Finished,
// Finished with return code != 0
FinishedError,
// Process terminated abnormally (kill)
TerminatedAbnormally,
// Executable could not be started
StartFailed,
// Hang, no output after time out
Hang };
SynchronousProcessResponse();
void clear();
// Helper to format an exit message.
QString exitMessage(const QString &binary, int timeoutMS) const;
Result result;
int exitCode;
QString stdOut;
QString stdErr;
};
QTCREATOR_UTILS_EXPORT QDebug operator<<(QDebug str, const SynchronousProcessResponse &);
class QTCREATOR_UTILS_EXPORT SynchronousProcess : public QObject
{
Q_OBJECT
public:
enum Flags {
// Unix: Do not give the child process a terminal for input prompting.
UnixTerminalDisabled = 0x1
};
SynchronousProcess();
virtual ~SynchronousProcess();
/* Timeout for hanging processes (triggers after no more output
* occurs on stderr/stdout). */
void setTimeout(int timeoutMS);
int timeout() const;
void setStdOutCodec(QTextCodec *c);
QTextCodec *stdOutCodec() const;
QProcess::ProcessChannelMode processChannelMode () const;
void setProcessChannelMode(QProcess::ProcessChannelMode m);
bool stdOutBufferedSignalsEnabled() const;
void setStdOutBufferedSignalsEnabled(bool);
bool stdErrBufferedSignalsEnabled() const;
void setStdErrBufferedSignalsEnabled(bool);
bool timeOutMessageBoxEnabled() const;
void setTimeOutMessageBoxEnabled(bool);
QStringList environment() const;
void setEnvironment(const QStringList &);
void setProcessEnvironment(const QProcessEnvironment &environment);
QProcessEnvironment processEnvironment() const;
void setWorkingDirectory(const QString &workingDirectory);
QString workingDirectory() const;
unsigned flags() const;
void setFlags(unsigned);
SynchronousProcessResponse run(const QString &binary, const QStringList &args);
// Create a (derived) processes with flags applied.
static QSharedPointer<QProcess> createProcess(unsigned flags);
// Static helper for running a process synchronously in the foreground with timeout
// detection similar SynchronousProcess' handling (taking effect after no more output
// occurs on stderr/stdout as opposed to waitForFinished()). Returns false if a timeout
// occurs. Checking of the process' exit state/code still has to be done.
static bool readDataFromProcess(QProcess &p, int timeOutMS,
QByteArray *stdOut = 0, QByteArray *stdErr = 0,
bool timeOutMessageBox = false);
// Stop a process by first calling terminate() (allowing for signal handling) and
// then kill().
static bool stopProcess(QProcess &p);
// Helpers to find binaries. Do not use it for other path variables
// and file types.
static QString locateBinary(const QString &binary);
static QString locateBinary(const QString &path, const QString &binary);
static QChar pathSeparator();
signals:
void stdOut(const QByteArray &data, bool firstTime);
void stdErr(const QByteArray &data, bool firstTime);
void stdOutBuffered(const QString &data, bool firstTime);
void stdErrBuffered(const QString &data, bool firstTime);
private slots:
void slotTimeout();
void finished(int exitCode, QProcess::ExitStatus e);
void error(QProcess::ProcessError);
void stdOutReady();
void stdErrReady();
private:
void processStdOut(bool emitSignals);
void processStdErr(bool emitSignals);
static QString convertStdErr(const QByteArray &);
QString convertStdOut(const QByteArray &) const;
SynchronousProcessPrivate *d;
};
} // namespace Utils
#endif
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