klauncher_main.cpp
/*
This file is part of the KDE libraries
Copyright (c) 1999 Waldo Bastian <bastian@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 as published by the Free Software Foundation.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include <unistd.h>
#include <fcntl.h>
#include "kapplication.h"
#include "klauncher.h"
#include "kcmdlineargs.h"
#include "kcrash.h"
#include "kdebug.h"
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <qcstring.h>
#include <klocale.h>
#include "klauncher_cmds.h"
static void sig_handler(int sig_num)
{
// No recursion
signal( SIGHUP, SIG_IGN);
signal( SIGTERM, SIG_IGN);
fprintf(stderr, "klauncher: Exiting on signal %d\n", sig_num);
KLauncher::destruct(255);
}
static KCmdLineOptions options[] =
{
{ "new-startup", "Internal", 0 },
KCmdLineLastOption
};
extern "C" KDE_EXPORT int kdemain( int argc, char**argv )
{
// Started via kdeinit.
if (fcntl(LAUNCHER_FD, F_GETFD) == -1)
{
fprintf(stderr, "%s", i18n("klauncher: This program is not supposed to be started manually.\n"
"klauncher: It is started automatically by kdeinit.\n").local8Bit().data());
return 1;
}
QCString cname = KApplication::launcher();
char *name = cname.data();
KCmdLineArgs::init(argc, argv, name, "KLauncher", "A service launcher.",
"v1.0");
KLauncher::addCmdLineOptions();
KCmdLineArgs::addCmdLineOptions( options );
// WABA: Make sure not to enable session management.
putenv(strdup("SESSION_MANAGER="));
// Allow the locale to initialize properly
KLocale::setMainCatalogue("kdelibs");
KCmdLineArgs *args = KCmdLineArgs::parsedArgs();
int maxTry = 3;
while(true)
{
QCString dcopName = KApplication::dcopClient()->registerAs(name, false);
if (dcopName.isEmpty())
{
kdWarning() << "DCOP communication problem!" << endl;
return 1;
}
if (dcopName == cname)
break; // Good!
if (--maxTry == 0)
{
kdWarning() << "Another instance of klauncher is already running!" << endl;
return 1;
}
// Wait a bit...
kdWarning() << "Waiting for already running klauncher to exit." << endl;
sleep(1);
// Try again...
}
KLauncher *launcher = new KLauncher(LAUNCHER_FD, args->isSet("new-startup"));
launcher->dcopClient()->setDefaultObject( name );
launcher->dcopClient()->setDaemonMode( true );
KCrash::setEmergencySaveFunction(sig_handler);
signal( SIGHUP, sig_handler);
signal( SIGPIPE, SIG_IGN);
signal( SIGTERM, sig_handler);
launcher->exec();
return 0;
}

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