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path: root/libopie2/opiecore/opluginloader.cpp
authorzecke <zecke>2004-05-11 21:58:26 (UTC)
committer zecke <zecke>2004-05-11 21:58:26 (UTC)
commit81104f00cb87962333a024d3fa5ff6cf3d8d7d83 (patch) (side-by-side diff)
treea2cf80b7c2a340e7e24692ced55155e2e907cf77 /libopie2/opiecore/opluginloader.cpp
parente58a9f83f1bd385aad687daa166077602e921494 (diff)
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-Woot The OpluginLoader successfully loaded and unloaded the Today Plugins
-Now when GUI and manager is done I'll see if sorting and disabling also works No leak, no memcorruption when running the test case
Diffstat (limited to 'libopie2/opiecore/opluginloader.cpp') (more/less context) (ignore whitespace changes)
-rw-r--r--libopie2/opiecore/opluginloader.cpp272
1 files changed, 208 insertions, 64 deletions
diff --git a/libopie2/opiecore/opluginloader.cpp b/libopie2/opiecore/opluginloader.cpp
index e5a0903..b473cd7 100644
--- a/libopie2/opiecore/opluginloader.cpp
+++ b/libopie2/opiecore/opluginloader.cpp
@@ -4,6 +4,13 @@
*/
#include "opluginloader.h"
+#include "oconfig.h"
+
+#include <qpe/qpeapplication.h>
+
+#include <qdir.h>
+#include <qdict.h>
+#include <qtl.h>
#include <stdlib.h>
@@ -14,17 +21,84 @@ namespace Core {
namespace Internal {
struct OPluginLibraryHolder {
static OPluginLibraryHolder *self();
- QLibrary *getLibrary( const QString& );
- void putLibrary( QLibrary* );
+ QLibrary *ref( const QString& );
+ void deref( QLibrary* );
private:
+
OPluginLibraryHolder();
~OPluginLibraryHolder();
- OPluginLibraryHolder* m_self;
-
+ QDict<QLibrary> m_libs;
+ static OPluginLibraryHolder* m_self;
};
+
+ OPluginLibraryHolder* OPluginLibraryHolder::m_self = 0;
+ OPluginLibraryHolder* OPluginLibraryHolder::self() {
+ if ( !m_self )
+ m_self = new OPluginLibraryHolder;
+
+ return m_self;
+ }
+
+ OPluginLibraryHolder::OPluginLibraryHolder() {}
+ OPluginLibraryHolder::~OPluginLibraryHolder() {}
+
+ /*
+ * We do simple ref counting... We will add the QLibrary again
+ * and again to the dictionary and on deref we will pop and pop it
+ * until there are no more library and we will unload and delete the library
+ * luckily dlopen does some ref counting as well so we don't need
+ * to hack QPEApplication
+ */
+ QLibrary* OPluginLibraryHolder::ref(const QString& str) {
+ QLibrary *lib = m_libs[str];
+
+ /* if not in the dict try to load it */
+ if ( !lib ) {
+ lib = new QLibrary( str, QLibrary::Immediately );
+ if ( !lib->isLoaded() ) {
+ delete lib;
+ return 0l;
+ }
+ }
+
+ /* now refcount one up */
+ m_libs.insert( str, lib );
+ return lib;
+ }
+
+ /*
+ * 'unshadow' the items until we're the last then unload and delete
+ */
+ void OPluginLibraryHolder::deref( QLibrary* lib ) {
+ if ( !lib )
+ return;
+
+ QString str = lib->library();
+ /* no need to check if the lib was inserted or such */
+ (void) m_libs.take( str );
+ if ( !m_libs[str] ) {
+ lib->unload();
+ delete lib;
+ }
+ }
+}
+
+/**
+ * We want values with 30,29,28 at the beginning of the list
+ */
+
+bool operator<( const OPluginItem& l, const OPluginItem& r ) {
+ return l.position() > r.position();
+}
+
+bool operator>( const OPluginItem& l, const OPluginItem& r ) {
+ return l.position() < r.position();
+}
+
+bool operator<=( const OPluginItem& l, const OPluginItem& r ) {
+ return l.position() >= r.position();
}
-}}
/**
* \brief Creates an Empty OPluginItem
*
@@ -41,14 +115,12 @@ OPluginItem::OPluginItem()
* Create a Plugin Item with all information.
*
* @param name The if available translated Name
- * @param conf The name of the config group
* @param path The path to the plugin
* @param pos The position of the plugin if used for sorting
*
*/
-OPluginItem::OPluginItem( const QString& name, const QCString& conf,
- const QString& path, int pos = -1 )
- : m_name( name ), m_conf( conf ), m_path( path ), m_pos( pos ) {
+OPluginItem::OPluginItem( const QString& name, const QString& path, int pos )
+ : m_name( name ), m_path( path ), m_pos( pos ) {
}
/**
@@ -63,12 +135,11 @@ OPluginItem::~OPluginItem() {
bool OPluginItem::operator==( const OPluginItem& r )const{
if ( m_pos != r.m_pos ) return false;
if ( m_name != r.m_name ) return false;
- if ( m_conf != r.m_conf ) return false;
if ( m_path != r.m_path ) return false;
return true;
}
-bool OPluginItem::operator!=( const OPluginItem& r ) {
+bool OPluginItem::operator!=( const OPluginItem& r )const{
return !( *this == r );
}
@@ -80,13 +151,6 @@ QString OPluginItem::name()const {
}
/**
- * return the config key
- */
-QCString OPluginItem::configKey()const{
- return m_conf;
-}
-
-/**
* return the path of the plugin
*/
QString OPluginItem::path()const {
@@ -106,14 +170,6 @@ void OPluginItem::setName( const QString& name ) {
}
/**
- * Set the config key
- * @param key The config key/group of this plugin
- */
-void OPluginItem::setConfigKey( const QCString& conf ) {
- m_conf = conf;
-}
-
-/**
* Set the path of Plugin Item
* @param name The path of the plugin
*/
@@ -160,9 +216,10 @@ void OPluginItem::setPosition( int pos ) {
*/
OGenericPluginLoader::OGenericPluginLoader( const QString& name, bool isSorted)
: m_dir( name ), m_autoDelete( false ), m_isSafeMode( false ),
- m_isSorted( isSorted ), m_readConfig( false )
+ m_isSorted( isSorted )
{
setPluginDir( QPEApplication::qpeDir() + "/plugins/"+name );
+ readConfig();
}
@@ -213,7 +270,7 @@ void OGenericPluginLoader::unload( QUnknownInterface* iface ) {
return;
iface->release();
- OPluginLibraryHolder::self()->deref( m_library.take( iface ) );
+ Internal::OPluginLibraryHolder::self()->deref( m_library.take( iface ) );
}
/**
@@ -224,19 +281,9 @@ void OGenericPluginLoader::unload( QUnknownInterface* iface ) {
* @return true if prior loading failed
*/
bool OGenericPluginLoader::isInSafeMode()const {
- if ( !m_readConfig )
- readConfig();
return m_isSafeMode;
}
-/**
- * return if the plugin list is sorted.
- */
-bool OGenericPluginLoader::isSorted()const {
- if ( !m_readConfig )
- readConfig();
- return m_isSorted;
-}
/**
* Return the list of all available plugins. This will go through all plugin
@@ -285,8 +332,8 @@ QUnknownInterface* OGenericPluginLoader::load( const OPluginItem& item, const QU
* See if we get a library
* return if we've none
*/
- setSafeMode( true );
- QLibrary *lib = OPluginLibraryHolder::self()->getLibrary( pa );
+ setSafeMode( pa, true );
+ QLibrary *lib = Internal::OPluginLibraryHolder::self()->ref( pa );
if ( !lib ) {
setSafeMode();
return 0l;
@@ -295,71 +342,159 @@ QUnknownInterface* OGenericPluginLoader::load( const OPluginItem& item, const QU
/**
* try to load the plugin and just in case initialize the pointer to a pointer again
*/
- QUnknownInterface** iface = 0;
- if ( lib->queryInterface( uuid, iface ) == QS_OK ) {
+ QUnknownInterface* iface=0;
+ if ( lib->queryInterface( uuid, &iface ) == QS_OK ) {
installTranslators(pa.left( pa.find(".")));
- m_library.insert( *iface, lib );
+ m_library.insert( iface, lib );
}else
- *iface = 0;
+ iface = 0;
setSafeMode();
- return *iface;
+ return iface;
}
+/**
+ * @internal and reads in the safe mode
+ */
void OGenericPluginLoader::readConfig() {
- m_readConfig = true;
-
/* read the config for SafeMode */
- OConfig conf( m_name + "-odpplugins" );
+ OConfig conf( m_dir + "-odpplugins" );
conf.setGroup( "General" );
m_isSafeMode = conf.readBoolEntry( "SafeMode", false );
}
-void OGenericPluginLoader::setSafeMode(bool b) {
- OConfig conf( m_name + "-odpplugins" );
+/**
+ * Enter or leave SafeMode
+ */
+void OGenericPluginLoader::setSafeMode(const QString& str, bool b) {
+ OConfig conf( m_dir + "-odpplugins" );
conf.setGroup( "General" );
conf.writeEntry( "SafeMode", b );
+ conf.writeEntry( "CrashedPlugin", str );
}
+/**
+ * @internal
+ *
+ * Set the List of Plugin Dirs to lst. Currently only QPEApplication::qpeDir()+"/plugins/"+mytype
+ * is used as plugin dir
+ */
void OGenericPluginLoader::setPluginDirs( const QStringList& lst ) {
m_plugDirs = lst;
}
+/**
+ *
+ * @internal
+ * Set the Plugin Dir to str. Str will be the only element in the list of plugin dirs
+ */
void OGenericPluginLoader::setPluginDir( const QString& str) {
m_plugDirs.clear();
m_plugDirs.append( str );
}
-bool &OGenericPluginLoader::isSafeMode()const {
- return m_isSafeMode;
-}
-bool &OGenericPluginLoader::isSorted()const {
+/**
+ * @internal
+ */
+bool OGenericPluginLoader::isSorted()const{
return m_isSorted;
}
-OPluginItem::List OGenericPluginLoader::plugins( const QString& dir, bool sorted, bool disabled ) {
+/*
+ * make libfoo.so.1.0.0 -> foo on UNIX
+ * make libfoo.dylib -> foo on MAC OS X Unix
+ * windows is obviously missing
+ */
+/**
+ * @internal
+ */
+QString OGenericPluginLoader::unlibify( const QString& str ) {
+ QString st = str.mid( str.find( "lib" )+3 );
#ifdef Q_OS_MACX
- QDir dir( dir, "lib*.dylib" );
+ return st.left( st.findRev( ".dylib" ) );
#else
- QDir dir( dir, "lib*.so" );
+ return st.left( st.findRev( ".so" ) );
#endif
+}
+
+/**
+ * Return a List of Plugins for a dir and add positions and remove disabled.
+ * If a plugin is on the excluded list assign position -2
+ *
+ * @param dir The dir to look in
+ * @param sorted Should positions be read?
+ * @param disabled Remove excluded from the list
+ */
+OPluginItem::List OGenericPluginLoader::plugins( const QString& _dir, bool sorted, bool disabled )const {
+#ifdef Q_OS_MACX
+ QDir dir( _dir, "lib*.dylib" );
+#else
+ QDir dir( _dir, "lib*.so" );
+#endif
+
+ OPluginItem::List lst;
+
/*
* get excluded list and then iterate over them
+ * Excluded list contains the name
+ * Position is a list with 'name.pos.name.pos.name.pos'
+ *
+ * For the look up we will create two QMap<QString,pos>
*/
- OConfig cfg( m_name+"odpplugins" );
- cfg.setGroup( dir );
- QStringList excludes = cfg.readListEntry( "Excluded" );
+ QMap<QString, int> positionMap;
+ QMap<QString, int> excludedMap;
+
+
+ OConfig cfg( m_dir+"odpplugins" );
+ cfg.setGroup( _dir );
+
+
+ QStringList excludes = cfg.readListEntry( "Excluded", ',' );
+ for ( QStringList::Iterator it = excludes.begin(); it != excludes.end(); ++it )
+ excludedMap.insert( *it, -2 );
+
+ if ( m_isSorted ) {
+ QStringList pos = cfg.readListEntry( "Positions", '.' );
+ QStringList::Iterator it = pos.begin();
+ while ( it != pos.end() )
+ positionMap.insert( *it++, (*it++).toInt() );
+ }
+
+
+
QStringList list = dir.entryList();
-// for (
+ QStringList::Iterator it;
+ for (QStringList::Iterator it = list.begin(); it != list.end(); ++it ) {
+ QString str = unlibify( *it );
+ OPluginItem item( str, _dir + "/" + *it );
-}
+ bool ex = excludedMap.contains( str );
+ /*
+ * if disabled but we should show all assign a -2
+ * else continue because we don't want to add the item
+ * else if sorted we assign the right position
+ */
+ if ( ex && !disabled)
+ item.setPosition( -2 );
+ else if ( ex && disabled )
+ continue;
+ else if ( sorted )
+ item.setPosition( positionMap[str] );
+
+ lst.append( item );
+ }
+ return lst;
+}
+/**
+ * @internal generate a list of languages from $LANG
+ */
QStringList OGenericPluginLoader::languageList() {
- if ( languageList.isEmpty() ) {
+ if ( m_languages.isEmpty() ) {
/*
* be_BY.CP1251 We will add, be_BY.CP1251,be_BY,be
* to our list of languages.
@@ -381,9 +516,18 @@ QStringList OGenericPluginLoader::languageList() {
void OGenericPluginLoader::installTranslators(const QString& type) {
QStringList lst = languageList();
+
+ /*
+ * for each language and maybe later for each language dir...
+ * try to load a Translator
+ */
for ( QStringList::Iterator it = lst.begin(); it != lst.end(); ++it ) {
QTranslator* trans = new QTranslator( qApp );
- QString tfn = QPEApplication::qpeDir()+"/i18n/" + lang + "/" + type + ".qm" ;
+ QString tfn = QPEApplication::qpeDir()+"/i18n/" + *it + "/" + type + ".qm" ;
+
+ /*
+ * If loaded then install else clean up and don't leak
+ */
if ( trans->load( tfn ) )
qApp->installTranslator( trans );
else