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# kpipeprocess.cpp

    00001 /*
    00002  *  This file is part of the KDE libraries
    00003  *  Copyright (c) 2001 Michael Goffioul <kdeprint@swing.be>
    00004  *
    00005  *  This library is free software; you can redistribute it and/or
    00006  *  modify it under the terms of the GNU Library General Public
    00007  *  License version 2 as published by the Free Software Foundation.
    00008  *
    00009  *  This library is distributed in the hope that it will be useful,
    00010  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
    00011  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00012  *  Library General Public License for more details.
    00013  *
    00014  *  You should have received a copy of the GNU Library General Public License
    00015  *  along with this library; see the file COPYING.LIB.  If not, write to
    00016  *  the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    00017  *  Boston, MA 02111-1307, USA.
    00018  **/
    00019
    00020 #include "kpipeprocess.h"
    00021
    00022 KPipeProcess::KPipeProcess(const QString& cmd, int mode)
    00023 : QFile()
    00024 {
    00025     m_pipe = NULL;
    00026     if (!cmd.isEmpty())
    00027         open(cmd,mode);
    00028 }
    00029
    00030 KPipeProcess::~KPipeProcess()
    00031 {
    00032     close();
    00033 }
    00034
    00035 bool KPipeProcess::open(const QString& cmd, int mode)
    00036 {
    00037     // close first if needed
    00038     close();
    00039     // check supported modes
    00040     if (mode != IO_ReadOnly && mode != IO_WriteOnly)
    00041         return false;
    00042
    00043     // create the pipe
    00044     m_pipe = popen(cmd.latin1(),(mode == IO_WriteOnly ? "w" : "r"));
    00045     if (m_pipe)
    00046         if (!QFile::open(mode,m_pipe))
    00047             close();
    00048     return (m_pipe != NULL);
    00049 }
    00050
    00051 void KPipeProcess::close()
    00052 {
    00053     if (m_pipe != NULL)
    00054     {
    00055         QFile::close();
    00056         /* pipe must be close to be sure the process is terminated */
    00057         pclose( m_pipe );
    00058         m_pipe = NULL;
    00059     }
    00060 }

This file is part of the documentation for kdeprint Library Version 3.4.1.
Documentation copyright © 1996-2004 the KDE developers.
Generated on Sat Jun 11 20:31:04 2005 by doxygen 1.4.1 written by Dimitri van Heesch, © 1997-2003