| -rw-r--r-- | microkde/kdecore/klibloader.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/microkde/kdecore/klibloader.cpp b/microkde/kdecore/klibloader.cpp index 9eee912..1394154 100644 --- a/microkde/kdecore/klibloader.cpp +++ b/microkde/kdecore/klibloader.cpp @@ -189,399 +189,406 @@ void* KLibrary::symbol( const char* symname ) const if ( !sym ) { //US kdWarning(150) << "KLibrary: " << lt_dlerror() << endl; return 0; } return sym; } bool KLibrary::hasSymbol( const char* symname ) const { //US void* sym = lt_dlsym( (lt_dlhandle) m_handle, symname ); void* sym = m_handle->resolve( symname ); return (sym != 0L ); } void KLibrary::unload() const { if (KLibLoader::s_self) KLibLoader::s_self->unloadLibrary(QFile::encodeName(name())); } void KLibrary::slotObjectCreated( QObject *obj ) { if ( !obj ) return; if ( m_timer && m_timer->isActive() ) m_timer->stop(); if ( m_objs.containsRef( obj ) ) return; // we know this object already connect( obj, SIGNAL( destroyed() ), this, SLOT( slotObjectDestroyed() ) ); m_objs.append( obj ); } void KLibrary::slotObjectDestroyed() { m_objs.removeRef( sender() ); if ( m_objs.count() == 0 ) { // kdDebug(150) << "KLibrary: shutdown timer for " << name() << " started!" // << endl; if ( !m_timer ) { m_timer = new QTimer( this, "klibrary_shutdown_timer" ); connect( m_timer, SIGNAL( timeout() ), this, SLOT( slotTimeout() ) ); } // as long as it's not stable make the timeout short, for debugging // pleasure (matz) //m_timer->start( 1000*60, true ); m_timer->start( 1000*10, true ); } } void KLibrary::slotTimeout() { if ( m_objs.count() != 0 ) return; /* Don't go through KLibLoader::unloadLibrary(), because that uses the ref counter, but this timeout means to unconditionally close this library The destroyed() signal will take care to remove us from all lists. */ delete this; } // ------------------------------------------------- /* This helper class is needed, because KLibraries can go away without being unloaded. So we need some info about KLibraries even after its death. */ class KLibWrapPrivate { public: //US KLibWrapPrivate(KLibrary *l, lt_dlhandle h); KLibWrapPrivate(KLibrary *l, QLibrary* h); KLibrary *lib; enum {UNKNOWN, UNLOAD, DONT_UNLOAD} unload_mode; int ref_count; //US lt_dlhandle handle; QLibrary *handle; QString name; QString filename; }; //US KLibWrapPrivate::KLibWrapPrivate(KLibrary *l, lt_dlhandle h) KLibWrapPrivate::KLibWrapPrivate(KLibrary *l, QLibrary* h) : lib(l), ref_count(1), handle(h), name(l->name()), filename(l->fileName()) { unload_mode = UNKNOWN; /*US if (lt_dlsym(handle, "__kde_do_not_unload") != 0) { // kdDebug(150) << "Will not unload " << name << endl; unload_mode = DONT_UNLOAD; } else if (lt_dlsym(handle, "__kde_do_unload") != 0) { unload_mode = UNLOAD; } */ //US use instead: if (h->resolve("__kde_do_not_unload") != 0) { // kdDebug(150) << "Will not unload " << name << endl; unload_mode = DONT_UNLOAD; } else if (h->resolve("__kde_do_unload") != 0) { unload_mode = UNLOAD; } } class KLibLoaderPrivate { public: QPtrList<KLibWrapPrivate> loaded_stack; QPtrList<KLibWrapPrivate> pending_close; enum {UNKNOWN, UNLOAD, DONT_UNLOAD} unload_mode; QString errorMessage; }; KLibLoader* KLibLoader::s_self = 0; KLibLoader* KLibLoader::self() { if ( !s_self ) s_self = new KLibLoader; return s_self; } void KLibLoader::cleanUp() { if ( !s_self ) return; delete s_self; s_self = 0; } KLibLoader::KLibLoader( QObject* parent, const char* name ) : QObject( parent, name ) { s_self = this; d = new KLibLoaderPrivate; //US lt_dlinit(); d->unload_mode = KLibLoaderPrivate::UNKNOWN; if (getenv("KDE_NOUNLOAD") != 0) d->unload_mode = KLibLoaderPrivate::DONT_UNLOAD; else if (getenv("KDE_DOUNLOAD") != 0) d->unload_mode = KLibLoaderPrivate::UNLOAD; d->loaded_stack.setAutoDelete( true ); } KLibLoader::~KLibLoader() { // kdDebug(150) << "Deleting KLibLoader " << this << " " << name() << endl; QAsciiDictIterator<KLibWrapPrivate> it( m_libs ); for (; it.current(); ++it ) { kdDebug(150) << "The KLibLoader contains the library " << it.current()->name << " (" << it.current()->lib << ")" << endl; d->pending_close.append(it.current()); } close_pending(0); delete d; } //static QString KLibLoader::findLibrary( const char * name/*US , const KInstance * instance*/ ) { QCString libname( name ); // only append ".la" if there is no extension // this allows to load non-libtool libraries as well // (mhk, 20000228) int pos = libname.findRev('/'); if (pos < 0) pos = 0; /*US if (libname.find('.', pos) < 0) { libname += ".la"; } */ //US in the microedition we work only with shared libraries. + if (libname.find('.', pos) < 0) { +#ifdef _WIN32_ + libname += ".dll"; +#else libname += ".so"; +#endif } // only look up the file if it is not an absolute filename // (mhk, 20000228) QString libfile; if (libname[0] == '/') libfile = libname; else { //US at this point the libname must exist as real filesname. No expansions will be made later // in findResources. Because of that we prepend the lib prefix here to the name //US I add also the "lib" prefix. I do not how could this could have worked before without it? +#ifndef _WIN32_ libname.insert(pos, "lib"); +#endif //US libfile = instance->dirs()->findResource( "module", libname ); //qDebug("libname = %s ",libname.data() ); libfile = KGlobal::dirs()->findResource( "module", libname ); //qDebug("libfile = %s ",libfile.latin1() ); if ( libfile.isEmpty() ) { //US libfile = instance->dirs()->findResource( "lib", libname ); libfile = KGlobal::dirs()->findResource( "lib", libname ); //qDebug("libfile2 = %s ",libfile.latin1() ); #ifndef NDEBUG if ( !libfile.isEmpty() && libname.left(3) == "lib" ) // don't warn for kdeinit modules kdDebug(150) << "library " << libname << " not found under 'module' but under 'lib'" << endl; #endif } if ( libfile.isEmpty() ) { #ifndef NDEBUG kdDebug(150) << "library=" << libname << ": No file names " << libname.data() << " found in paths." << endl; self()->d->errorMessage = i18n("Library files for \"%1\" not found in paths").arg(libname); qDebug("KLibLoader::library could not find library: %s", libname.data()); #endif } else self()->d->errorMessage = QString::null; } //qDebug("return libfile = %s ",libfile.latin1() ); return libfile; } KLibrary* KLibLoader::globalLibrary( const char *name ) { KLibrary *tmp; /*US int olt_dlopen_flag = lt_dlopen_flag; lt_dlopen_flag |= LT_GLOBAL; kdDebug(150) << "Loading the next library global with flag " << lt_dlopen_flag << "." << endl; */ tmp = library(name); /*US lt_dlopen_flag = olt_dlopen_flag; */ return tmp; } KLibrary* KLibLoader::library( const char *name ) { if (!name) return 0; KLibWrapPrivate* wrap = m_libs[name]; if (wrap) { /* Nothing to do to load the library. */ wrap->ref_count++; return wrap->lib; } /* Test if this library was loaded at some time, but got unloaded meanwhile, whithout being dlclose()'ed. */ QPtrListIterator<KLibWrapPrivate> it(d->loaded_stack); for (; it.current(); ++it) { if (it.current()->name == name) wrap = it.current(); } if (wrap) { d->pending_close.removeRef(wrap); if (!wrap->lib) { /* This lib only was in loaded_stack, but not in m_libs. */ wrap->lib = new KLibrary( name, wrap->filename, wrap->handle ); } wrap->ref_count++; } else { QString libfile = findLibrary( name ); if ( libfile.isEmpty() ) return 0; #ifdef DESKTOP_VERSION QLibrary *qlib = new QLibrary( libfile.latin1() ); #else QLibrary *qlib = new QLibrary( libfile.latin1(), QLibrary::Immediately ); #endif //US lt_dlhandle handle = lt_dlopen( libfile.latin1() ); //US if ( !handle ) if ( !qlib ) { //US const char* errmsg = lt_dlerror(); char* errmsg; sprintf(errmsg, "KLibLoader::library could not load library: %s", libfile.latin1()); qDebug(errmsg); if(errmsg) d->errorMessage = QString::fromLatin1(errmsg); else d->errorMessage = QString::null; kdWarning(150) << "library=" << name << ": file=" << libfile << ": " << d->errorMessage << endl; return 0; } else d->errorMessage = QString::null; KLibrary *lib = new KLibrary( name, libfile, qlib ); wrap = new KLibWrapPrivate(lib, qlib); d->loaded_stack.prepend(wrap); } m_libs.insert( name, wrap ); connect( wrap->lib, SIGNAL( destroyed() ), this, SLOT( slotLibraryDestroyed() ) ); return wrap->lib; } QString KLibLoader::lastErrorMessage() const { return d->errorMessage; } void KLibLoader::unloadLibrary( const char *libname ) { KLibWrapPrivate *wrap = m_libs[ libname ]; if (!wrap) return; if (--wrap->ref_count) return; // kdDebug(150) << "closing library " << libname << endl; m_libs.remove( libname ); disconnect( wrap->lib, SIGNAL( destroyed() ), this, SLOT( slotLibraryDestroyed() ) ); close_pending( wrap ); } KLibFactory* KLibLoader::factory( const char* name ) { KLibrary* lib = library( name ); if ( !lib ) return 0; return lib->factory(); } void KLibLoader::slotLibraryDestroyed() { const KLibrary *lib = static_cast<const KLibrary *>( sender() ); QAsciiDictIterator<KLibWrapPrivate> it( m_libs ); for (; it.current(); ++it ) if ( it.current()->lib == lib ) { KLibWrapPrivate *wrap = it.current(); wrap->lib = 0; /* the KLibrary object is already away */ m_libs.remove( it.currentKey() ); close_pending( wrap ); return; } } void KLibLoader::close_pending(KLibWrapPrivate *wrap) { if (wrap && !d->pending_close.containsRef( wrap )) d->pending_close.append( wrap ); /* First delete all KLibrary objects in pending_close, but _don't_ unload the DSO behind it. */ QPtrListIterator<KLibWrapPrivate> it(d->pending_close); for (; it.current(); ++it) { wrap = it.current(); if (wrap->lib) { disconnect( wrap->lib, SIGNAL( destroyed() ), this, SLOT( slotLibraryDestroyed() ) ); delete wrap->lib; wrap->lib = 0; } } if (d->unload_mode == KLibLoaderPrivate::DONT_UNLOAD) return; bool deleted_one = false; while ((wrap = d->loaded_stack.first())) { |