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tdebase/kcminit/main.cpp

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6.6 KiB

/*
Copyright (c) 1999 Matthias Hoelzer-Kluepfel <hoelzer@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.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <config.h>
#include "main.h"
#include <unistd.h>
#include <tqfile.h>
#include <tqtimer.h>
#include <kapplication.h>
#include <kcmdlineargs.h>
#include <kaboutdata.h>
#include <kservice.h>
#include <klibloader.h>
#include <kdebug.h>
#include <dcopclient.h>
#include <kconfig.h>
#include <X11/Xlib.h>
static KCmdLineOptions options[] =
{
{ "list", I18N_NOOP("List modules that are run at startup"), 0 },
{ "+module", I18N_NOOP("Configuration module to run"), 0 },
KCmdLineLastOption
};
static int ready[ 2 ];
static bool startup = false;
static void sendReady()
{
if( ready[ 1 ] == -1 )
return;
char c = 0;
write( ready[ 1 ], &c, 1 );
close( ready[ 1 ] );
ready[ 1 ] = -1;
}
static void waitForReady()
{
char c = 1;
close( ready[ 1 ] );
read( ready[ 0 ], &c, 1 );
close( ready[ 0 ] );
}
bool KCMInit::runModule(const TQString &libName, KService::Ptr service)
{
KLibLoader *loader = KLibLoader::self();
KLibrary *lib = loader->library(TQFile::encodeName(libName));
if (lib) {
// get the init_ function
TQString factory = TQString("init_%1").arg(service->init());
void *init = lib->symbol(factory.utf8());
if (init) {
// initialize the module
kdDebug(1208) << "Initializing " << libName << ": " << factory << endl;
void (*func)() = (void(*)())init;
func();
return true;
}
loader->unloadLibrary(TQFile::encodeName(libName));
}
return false;
}
void KCMInit::runModules( int phase )
{
// look for X-KDE-Init=... entries
for(KService::List::Iterator it = list.begin();
it != list.end();
++it) {
KService::Ptr service = (*it);
TQString library = service->property("X-KDE-Init-Library", TQVariant::String).toString();
if (library.isEmpty())
library = service->library();
if (library.isEmpty() || service->init().isEmpty())
continue; // Skip
// see ksmserver's README for the description of the phases
TQVariant vphase = service->property("X-KDE-Init-Phase", TQVariant::Int );
int libphase = 1;
if( vphase.isValid() )
libphase = vphase.toInt();
if( phase != -1 && libphase != phase )
continue;
TQString libName = TQString("kcm_%1").arg(library);
// try to load the library
if (! alreadyInitialized.contains( libName.ascii() )) {
if (!runModule(libName, service)) {
libName = TQString("libkcm_%1").arg(library);
if (! alreadyInitialized.contains( libName.ascii() )) {
runModule(libName, service);
alreadyInitialized.append( libName.ascii() );
}
} else
alreadyInitialized.append( libName.ascii() );
}
}
}
KCMInit::KCMInit( KCmdLineArgs* args )
: DCOPObject( "kcminit" )
{
TQCString arg;
if (args->count() == 1) {
arg = args->arg(0);
}
if (args->isSet("list"))
{
list = KService::allInitServices();
for(KService::List::Iterator it = list.begin();
it != list.end();
++it)
{
KService::Ptr service = (*it);
if (service->library().isEmpty() || service->init().isEmpty())
continue; // Skip
printf("%s\n", TQFile::encodeName(service->desktopEntryName()).data());
}
return;
}
if (!arg.isEmpty()) {
TQString module = TQFile::decodeName(arg);
if (!module.endsWith(".desktop"))
module += ".desktop";
KService::Ptr serv = KService::serviceByStorageId( module );
if ( !serv || serv->library().isEmpty() ||
serv->init().isEmpty()) {
kdError(1208) << TQString(i18n("Module %1 not found!").arg(module)) << endl;
return;
} else
list.append(serv);
} else {
// locate the desktop files
list = KService::allInitServices();
}
if ( !kapp->dcopClient()->isAttached() )
kapp->dcopClient()->attach();
// This key has no GUI apparently
KConfig config("kcmdisplayrc", true );
config.setGroup("X11");
bool multihead = !config.readBoolEntry( "disableMultihead", false) &&
(ScreenCount(qt_xdisplay()) > 1);
// Pass env. var to tdeinit.
TQCString name = "KDE_MULTIHEAD";
TQCString value = multihead ? "true" : "false";
TQByteArray params;
TQDataStream stream(params, IO_WriteOnly);
stream << name << value;
kapp->dcopClient()->send("klauncher", "klauncher", "setLaunchEnv(TQCString,TQCString)", params);
setenv( name, value, 1 ); // apply effect also to itself
if( startup )
{
runModules( 0 );
kapp->dcopClient()->send( "ksplash", "", "upAndRunning(TQString)", TQString("kcminit"));
sendReady();
TQTimer::singleShot( 300 * 1000, tqApp, TQT_SLOT( quit())); // just in case
tqApp->exec(); // wait for runPhase1() and runPhase2()
}
else
runModules( -1 ); // all phases
}
KCMInit::~KCMInit()
{
sendReady();
}
void KCMInit::runPhase1()
{
runModules( 1 );
emitDCOPSignal( "phase1Done()", TQByteArray());
}
void KCMInit::runPhase2()
{
runModules( 2 );
emitDCOPSignal( "phase2Done()", TQByteArray());
tqApp->exit( 0 );
}
extern "C" KDE_EXPORT int kdemain(int argc, char *argv[])
{
// tdeinit waits for kcminit to finish, but during KDE startup
// only important kcm's are started very early in the login process,
// the rest is delayed, so fork and make parent return after the initial phase
pipe( ready );
if( fork() != 0 )
{
waitForReady();
return 0;
}
close( ready[ 0 ] );
startup = ( strcmp( argv[ 0 ], "kcminit_startup" ) == 0 ); // started from startkde?
KLocale::setMainCatalogue("kcontrol");
KAboutData aboutData( "kcminit", I18N_NOOP("KCMInit"),
"",
I18N_NOOP("KCMInit - runs startups initialization for Control Modules."));
KCmdLineArgs::init(argc, argv, &aboutData);
KCmdLineArgs::addCmdLineOptions( options ); // Add our own options.
KApplication app;
app.dcopClient()->registerAs( "kcminit", false );
KLocale::setMainCatalogue(0);
KCMInit kcminit( KCmdLineArgs::parsedArgs());
return 0;
}
#include "main.moc"