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/***************************************************************************
* Copyright (C) 2006 by Andras Mantia *
* amantia@kde.org *
* *
* 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. *
* *
***************************************************************************/
#ifndef BLOCKINGKPROCESS_H
#define BLOCKINGKPROCESS_H
#include <kprocess.h>
/**
* Blocking version of KProcess, which stores the stdout.
* Differences between start(KProcess::Block, KProcess::StdOut) and this
* class are:
* - the GUI update is not blocked why the external process is running
* - in case of problems there is a timeout (defaults to 60 seconds), after which the
* process is terminated.
* - the stdout is caught - it the caller request it - and can be read by the caller
* @author Andras Mantia <amantia@kde.org>
*/
class QTimer;
class BlockingKProcess : public KProcess
{
Q_OBJECT
public:
BlockingKProcess(QObject *parent, const char *name=0);
BlockingKProcess();
virtual ~BlockingKProcess();
/**
* Start the process. It waits until the process exits or the timeout is hit.
* @param runmode @see KProcess, use KProcess::NotifyOnExit to get proper behaviour,
* not KProcess::Block
* @param comm if Stdout is passed, it catches the output. For the rest @see KProcess
* @return true in case of success, false if there are problems to start the process
* or it was killed because of the timeout.
*/
virtual bool start(RunMode runmode=NotifyOnExit, Communication comm=NoCommunication);
/**
* Get the output of the run process
* @return the output
*/
QString stdOut() { return m_stdOut;}
/**
* Clear the internal stdout buffer. Useful in case the class is reused.
*/
void clearStdOut() { m_stdOut = "";}
/**
* Get the error output of the run process
* @return the output
*/
QString stdErr() { return m_stdErr;}
/**
* Clear the internal stderr buffer. Useful in case the class is reused.
*/
void clearStdErr() { m_stdErr = "";}
/**
* Sets the timeout
* @param timeout seconds after which the process is considered hung and killed. 0 disables the timeout.
*/
void setTimeOut(int timeout) { m_timeoutValue = timeout; }
private slots:
void slotReceivedStdOut(KProcess *proc, char *buffer, int buflen);
void slotReceivedStdErr(KProcess *proc, char *buffer, int buflen);
void slotProcessExited(KProcess *proc);
void slotTimeOut();
private:
void enter_loop();
QString m_stdOut;
QString m_stdErr;
bool m_timeout;
int m_timeoutValue;
QTimer *m_timer;
};
#endif
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