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//
// MAIN -- a little demo of the capabilities of the "KProcess" class
//
// version 0.2, Aug 2nd 1997
// $Id$
//
// (C) Christian Czezatke
// e9025461@student.tuwien.ac.at
//
#include "kprocess.h"
#include <stdio.h>
#include <string.h>
#include <kapplication.h>
#include <signal.h>
#include "kprocesstest.h"
#define PROCNO 10
//
// A nice input for "sort"... ;- )
//
static const char txt[] = "hat\nder\nalte\nhexenmeister\nsich\ndoch\neinmal\nwegbegeben\n\
und\nnun\nsollen\nseine\ngeister\nsich\nnach\nmeinem\nwillen\nregen\nseine\nwort\nund\n\
werke\nmerkt\nich\nund\nden\nbrauch\nund\nmit\ngeistesstaerke\ntu\nich\nwunder\nauch\n";
int main(int argc, char *argv[])
{
KProcess p1, p2, p3, p4;
Dummy dummy;
KApplication app(argc, argv, "kprocesstest");
printf("Welcome to the KProcess Demo Application!\n");
//
// The kghostview demo -- Starts a kghostview instance blocking. -- After
// kghostview has exited, kghostview is restarted non-blocking. When the process exits,
// the signal "processExited" will be emitted.
//
p1 << "kghostview";
QObject::connect(&p1, SIGNAL(processExited(KProcess *)), &dummy, SLOT(printMessage(KProcess *)));
printf("starting kghostview blocking (close to continue)\n");
p1.start(KProcess::Block);
printf("restarting kghostview non blocking\n");
p1.start();
//
// A konsole with tcsh to demonstrate how to pass command line options to a process
// with "KProcess" (is run blocking)
//
printf("Starting konsole with /bin/tcsh as shell (close to continue)\n");
p2 << "konsole" << "-e" << "/bin/tcsh";
p2.setWorkingDirectory("/tmp");
QObject::connect(&p2, SIGNAL(processExited(KProcess *)), &dummy, SLOT(printMessage(KProcess *)));
p2.start(KProcess::Block);
//
// Getting the output from a process. "ls" with parameter "-l" is called and it output is captured
//
p3 << "ls" << "-l";
QObject::connect(&p3, SIGNAL(processExited(KProcess *)),
&dummy, SLOT(printMessage(KProcess *)));
QObject::connect(&p3, SIGNAL(receivedStdout(KProcess *, char *, int)),
&dummy, SLOT(gotOutput(KProcess *, char *, int)));
QObject::connect(&p3, SIGNAL(receivedStderr(KProcess *, char *, int)),
&dummy, SLOT(gotOutput(KProcess *, char *, int)));
p3.start(KProcess::NotifyOnExit, KProcess::AllOutput);
//
// An even more advanced example of communicating with a child proces. -- A "sort" command
// is started. After it has been started a list of words (as stored in "txt") is written
// to its stdin. When the sort command has absorbed all its input it will emit the signal
// "inputSent". -- This signal is connected to "outputDone" in the Dummy object.
//
// "OutputDone" will do a "sendEof" to p4. -- This will cause "sort" to perform its task.
// The output of sort is then captured once more by connecting to the signal "outputWaiting"
//
//
p4 << "sort";
QObject::connect(&p4, SIGNAL(processExited(KProcess *)),
&dummy, SLOT(printMessage(KProcess *)));
QObject::connect(&p4, SIGNAL(receivedStdout(KProcess *, char *, int)),
&dummy, SLOT(gotOutput(KProcess *, char *, int)));
QObject::connect(&p4, SIGNAL(receivedStderr(KProcess *, char *, int)),
&dummy, SLOT(gotOutput(KProcess *, char *, int)));
QObject::connect(&p4, SIGNAL(wroteStdin(KProcess *)),
&dummy, SLOT(outputDone(KProcess *)));
p4.start(KProcess::NotifyOnExit, KProcess::All);
printf("after p4.start");
p4.writeStdin(txt, strlen(txt));
printf("Entering man Qt event loop -- press <CTRL><C> to abort\n");
app.exec();
return 0;
}
#include "kprocesstest.moc"
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