/usr/include/klfbackend/klfblockprocess.h is in libklatexformula3-dev 3.3.0~beta-1+b2.
This file is owned by root:root, with mode 0o644.
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* file klfblockprocess.h
* This file is part of the KLatexFormula Project.
* Copyright (C) 2011 by Philippe Faist
* philippe.faist@bluewin.ch
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
/* $Id: klfblockprocess.h 780 2012-05-12 13:41:36Z phfaist $ */
#ifndef KLFBLOCKPROCESS_H
#define KLFBLOCKPROCESS_H
//! Defines the KLFBlockProcess class
/** \file
* Defines the KLFBlockProcess class */
#include <klfdefs.h>
#include <QProcess>
#include <QString>
#include <QByteArray>
//! A QProcess subclass for code-blocking process execution
/** A Code-blocking (but not GUI-blocking) process executor
*
* Use for example like:
* \code
* KLFBlockProcess proc;
* QStringList args;
* args << "ls" << "/dev";
* proc.startProcess(args);
* QString alldevices = proc.readStdoutString();
* \endcode
*
* This class provides functionality for passing data to STDIN and
* getting data from STDOUT and STDERR afterwards.
*
* \author Philippe Faist <philippe.faist@bluewin.ch>
*/
class KLF_EXPORT KLFBlockProcess : public QProcess
{
Q_OBJECT
public:
/** Normal constructor, like QProcess constructor */
KLFBlockProcess(QObject *parent = 0);
/** Normal destructor */
~KLFBlockProcess();
/** specify whether or not to call regularly qApp->processEvents() while executing.
* This will prevent the GUI to freeze. Enabled is the default. However you can choose to
* disable this behavior by passing FALSE here. */
inline void setProcessAppEvents(bool processAppEvents) { mProcessAppEvents = processAppEvents; }
/** Returns all standard error output as a QByteArray. This function is to standardize the
* readStderr() and readAllStandardError() functions in QT 3 or QT 4 respectively */
QByteArray getAllStderr() {
return readAllStandardError();
}
/** Returns all standard output as a QByteArray. This function is to standardize the
* readStdout() and readAllStandardOutput() functions in QT 3 or QT 4 respectively */
QByteArray getAllStdout() {
return readAllStandardOutput();
}
/** Same as QProcess::exitStatus()==NormalExit */
bool processNormalExit() const {
return QProcess::exitStatus() == NormalExit;
}
/** Same as QProcess::exitCode() */
int processExitStatus() const {
return exitCode();
}
public slots:
/** Starts cmd (which is a list of arguments, the first being the
* program itself) and blocks until process stopped. The QT event
* loop is updated regularly so that the GUI doesn't freeze.
*
* Read result with QProcess::readStdout() and QProcess::readStderr(),
* get process exit info with processNormalExit() and processExitStatus().
*
* \returns TRUE upon success, FALSE upon failure.
*/
bool startProcess(QStringList cmd, QByteArray stdindata, QStringList env = QStringList());
/** Convenient function to be used in the case where program doesn't
* expect stdin data or if you chose to directly close stdin without writing
* anything to it. */
bool startProcess(QStringList cmd, QStringList env = QStringList());
/** Same as getAllStderr(), except result is returned here as QString. */
QString readStderrString() {
return QString::fromLocal8Bit(getAllStderr());
}
/** Same as getAllStdout(), except result is returned here as QString. */
QString readStdoutString() {
return QString::fromLocal8Bit(getAllStdout());
}
private slots:
void ourProcExited();
void ourProcGotOurStdinData();
private:
bool _runstatus;
bool mProcessAppEvents;
};
#endif
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