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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#ifndef SYNCHRONOUSPROCESS_H
#define SYNCHRONOUSPROCESS_H
#include "utils_global.h"
#include <QProcess>
#include <QSharedPointer>
#include <QTextCodec>
QT_FORWARD_DECLARE_CLASS(QDebug)
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 ExitCodeInterpreter : public QObject
{
Q_OBJECT
public:
ExitCodeInterpreter(QObject *parent) : QObject(parent) {}
virtual SynchronousProcessResponse::Result interpretExitCode(int code) const;
};
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 setCodec(QTextCodec *c);
QTextCodec *codec() 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);
void setExitCodeInterpreter(ExitCodeInterpreter *interpreter);
ExitCodeInterpreter *exitCodeInterpreter() const;
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 QString normalizeNewlines(const QString &text);
signals:
void stdOut(const QString &text, bool firstTime);
void stdErr(const QString &text, bool firstTime);
void stdOutBuffered(const QString &data, bool firstTime);
void stdErrBuffered(const QString &data, bool firstTime);
public slots:
bool terminate();
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);
QString convertOutput(const QByteArray &, QTextCodec::ConverterState *state) const;
SynchronousProcessPrivate *d;
};
} // namespace Utils
#endif
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