tdelauncher_main.cpp
00001 /* 00002 This file is part of the KDE libraries 00003 Copyright (c) 1999 Waldo Bastian <bastian@kde.org> 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., 51 Franklin Street, Fifth Floor, 00017 Boston, MA 02110-1301, USA. 00018 */ 00019 00020 #include "config.h" 00021 00022 #include <unistd.h> 00023 #include <fcntl.h> 00024 00025 #include "tdeapplication.h" 00026 #include "tdelauncher.h" 00027 #include "tdecmdlineargs.h" 00028 #include "kcrash.h" 00029 #include "kdebug.h" 00030 #include <stdio.h> 00031 #include <stdlib.h> 00032 #include <signal.h> 00033 #include <tqcstring.h> 00034 #include <tdelocale.h> 00035 00036 #include "tdelauncher_cmds.h" 00037 00038 static void sig_handler(int sig_num) 00039 { 00040 // No recursion 00041 signal( SIGHUP, SIG_IGN); 00042 signal( SIGTERM, SIG_IGN); 00043 fprintf(stderr, "[tdelauncher] Exiting on signal %d\n", sig_num); 00044 TDELauncher::destruct(255); 00045 } 00046 00047 static TDECmdLineOptions options[] = 00048 { 00049 { "new-startup", "Internal", 0 }, 00050 TDECmdLineLastOption 00051 }; 00052 00053 extern "C" KDE_EXPORT int kdemain( int argc, char**argv ) 00054 { 00055 // Started via tdeinit. 00056 if (fcntl(LAUNCHER_FD, F_GETFD) == -1) 00057 { 00058 fprintf(stderr, "%s", i18n("[tdelauncher] This program is not supposed to be started manually.\n" 00059 "[tdelauncher] It is started automatically by tdeinit.\n").local8Bit().data()); 00060 return 1; 00061 } 00062 00063 TQCString cname = TDEApplication::launcher(); 00064 char *name = cname.data(); 00065 TDECmdLineArgs::init(argc, argv, name, "TDELauncher", "A service launcher.", 00066 "v1.0"); 00067 00068 TDELauncher::addCmdLineOptions(); 00069 TDECmdLineArgs::addCmdLineOptions( options ); 00070 00071 // WABA: Make sure not to enable session management. 00072 putenv(strdup("SESSION_MANAGER=")); 00073 00074 // Allow the locale to initialize properly 00075 TDELocale::setMainCatalogue("tdelibs"); 00076 00077 TDECmdLineArgs *args = TDECmdLineArgs::parsedArgs(); 00078 00079 int maxTry = 3; 00080 while(true) 00081 { 00082 TQCString dcopName = TDEApplication::dcopClient()->registerAs(name, false); 00083 if (dcopName.isEmpty()) 00084 { 00085 kdWarning() << "[tdelauncher] DCOP communication problem!" << endl; 00086 return 1; 00087 } 00088 if (dcopName == cname) 00089 break; // Good! 00090 00091 if (--maxTry == 0) 00092 { 00093 kdWarning() << "[tdelauncher] Another instance of tdelauncher is already running!" << endl; 00094 return 1; 00095 } 00096 00097 // Wait a bit... 00098 kdWarning() << "[tdelauncher] Waiting for already running tdelauncher to exit." << endl; 00099 sleep(1); 00100 00101 // Try again... 00102 } 00103 00104 TDELauncher *launcher = new TDELauncher(LAUNCHER_FD, args->isSet("new-startup")); 00105 launcher->dcopClient()->setDefaultObject( name ); 00106 launcher->dcopClient()->setDaemonMode( true ); 00107 00108 TDECrash::setEmergencySaveFunction(sig_handler); 00109 signal( SIGHUP, sig_handler); 00110 signal( SIGPIPE, SIG_IGN); 00111 signal( SIGTERM, sig_handler); 00112 00113 launcher->exec(); 00114 return 0; 00115 } 00116