summaryrefslogtreecommitdiffstats
path: root/gentoo/dev-qt/qt/files/trinity-3.5.13.1..3.5.13.2/qt3-2013-04-25_03_21_44-Fix-a-number-of-threading-problems-and-crashes-This-partially-resolves-Bug-1467-part-of-the-original-commit-b8e4f24.patch
diff options
context:
space:
mode:
Diffstat (limited to 'gentoo/dev-qt/qt/files/trinity-3.5.13.1..3.5.13.2/qt3-2013-04-25_03_21_44-Fix-a-number-of-threading-problems-and-crashes-This-partially-resolves-Bug-1467-part-of-the-original-commit-b8e4f24.patch')
-rw-r--r--gentoo/dev-qt/qt/files/trinity-3.5.13.1..3.5.13.2/qt3-2013-04-25_03_21_44-Fix-a-number-of-threading-problems-and-crashes-This-partially-resolves-Bug-1467-part-of-the-original-commit-b8e4f24.patch1052
1 files changed, 1052 insertions, 0 deletions
diff --git a/gentoo/dev-qt/qt/files/trinity-3.5.13.1..3.5.13.2/qt3-2013-04-25_03_21_44-Fix-a-number-of-threading-problems-and-crashes-This-partially-resolves-Bug-1467-part-of-the-original-commit-b8e4f24.patch b/gentoo/dev-qt/qt/files/trinity-3.5.13.1..3.5.13.2/qt3-2013-04-25_03_21_44-Fix-a-number-of-threading-problems-and-crashes-This-partially-resolves-Bug-1467-part-of-the-original-commit-b8e4f24.patch
new file mode 100644
index 000000000..c47203150
--- /dev/null
+++ b/gentoo/dev-qt/qt/files/trinity-3.5.13.1..3.5.13.2/qt3-2013-04-25_03_21_44-Fix-a-number-of-threading-problems-and-crashes-This-partially-resolves-Bug-1467-part-of-the-original-commit-b8e4f24.patch
@@ -0,0 +1,1052 @@
+diff --git a/src/kernel/qapplication.cpp b/src/kernel/qapplication.cpp
+index 0ec4904..960db1e 100644
+--- a/src/kernel/qapplication.cpp
++++ b/src/kernel/qapplication.cpp
+@@ -546,8 +546,9 @@ static QPostEventList *globalPostedEvents = 0; // list of posted events
+
+ uint qGlobalPostedEventsCount()
+ {
+- if (!globalPostedEvents)
++ if (!globalPostedEvents) {
+ return 0;
++ }
+ return globalPostedEvents->count();
+ }
+
+@@ -2315,8 +2316,9 @@ void QApplication::aboutQt()
+ bool QApplication::notify( QObject *receiver, QEvent *e )
+ {
+ // no events are delivered after ~QApplication() has started
+- if ( is_app_closing )
++ if ( is_app_closing ) {
+ return FALSE;
++ }
+
+ if ( receiver == 0 ) { // serious error
+ #if defined(QT_CHECK_NULL)
+@@ -2358,8 +2360,9 @@ bool QApplication::notify( QObject *receiver, QEvent *e )
+ }
+
+ bool res = FALSE;
+- if ( !receiver->isWidgetType() )
++ if ( !receiver->isWidgetType() ) {
+ res = internalNotify( receiver, e );
++ }
+ else switch ( e->type() ) {
+ #ifndef QT_NO_ACCEL
+ case QEvent::Accel:
+@@ -2367,13 +2370,15 @@ bool QApplication::notify( QObject *receiver, QEvent *e )
+ QKeyEvent* key = (QKeyEvent*) e;
+ res = internalNotify( receiver, e );
+
+- if ( !res && !key->isAccepted() )
++ if ( !res && !key->isAccepted() ) {
+ res = qt_dispatchAccelEvent( (QWidget*)receiver, key );
++ }
+
+ // next lines are for compatibility with Qt <= 3.0.x: old
+ // QAccel was listening on toplevel widgets
+- if ( !res && !key->isAccepted() && !((QWidget*)receiver)->isTopLevel() )
++ if ( !res && !key->isAccepted() && !((QWidget*)receiver)->isTopLevel() ) {
+ res = internalNotify( ((QWidget*)receiver)->topLevelWidget(), e );
++ }
+ }
+ break;
+ #endif //QT_NO_ACCEL
+@@ -3116,8 +3121,9 @@ void QApplication::postEvent( QObject *receiver, QEvent *event )
+ qapp_cleanup_events.set( &globalPostedEvents );
+ }
+
+- if ( !receiver->postedEvents )
++ if ( !receiver->postedEvents ) {
+ receiver->postedEvents = new QPostEventList;
++ }
+ QPostEventList * l = receiver->postedEvents;
+
+ // if this is one of the compressible events, do compression
+@@ -3232,22 +3238,25 @@ void QApplication::sendPostedEvents( QObject *receiver, int event_type )
+ {
+ // Make sure the object hierarchy is stable before processing events
+ // to avoid endless loops
+- if ( receiver == 0 && event_type == 0 )
++ if ( receiver == 0 && event_type == 0 ) {
+ sendPostedEvents( 0, QEvent::ChildInserted );
+-
+- if ( !globalPostedEvents || ( receiver && !receiver->postedEvents ) )
+- return;
++ }
+
+ #ifdef QT_THREAD_SUPPORT
+ QMutexLocker locker( postevent_mutex );
+ #endif
+
++ if ( !globalPostedEvents || ( receiver && !receiver->postedEvents ) ) {
++ return;
++ }
++
+ bool sent = TRUE;
+ while ( sent ) {
+ sent = FALSE;
+
+- if ( !globalPostedEvents || ( receiver && !receiver->postedEvents ) )
++ if ( !globalPostedEvents || ( receiver && !receiver->postedEvents ) ) {
+ return;
++ }
+
+ // if we have a receiver, use the local list. Otherwise, use the
+ // global list
+@@ -3296,8 +3305,9 @@ void QApplication::sendPostedEvents( QObject *receiver, int event_type )
+ if ( e->type() == QEvent::Paint && r->isWidgetType() ) {
+ QWidget * w = (QWidget*)r;
+ QPaintEvent * p = (QPaintEvent*)e;
+- if ( w->isVisible() )
++ if ( w->isVisible() ) {
+ w->repaint( p->reg, p->erase );
++ }
+ } else {
+ sent = TRUE;
+ QApplication::sendEvent( r, e );
+@@ -3318,10 +3328,12 @@ void QApplication::sendPostedEvents( QObject *receiver, int event_type )
+ if ( l == globalPostedEvents ) {
+ globalPostedEvents->first();
+ while( (pe=globalPostedEvents->current()) != 0 ) {
+- if ( pe->event )
++ if ( pe->event ) {
+ globalPostedEvents->next();
+- else
++ }
++ else {
+ globalPostedEvents->remove();
++ }
+ }
+ }
+ }
+diff --git a/src/kernel/qobject.cpp b/src/kernel/qobject.cpp
+index 7790676..375e83b 100644
+--- a/src/kernel/qobject.cpp
++++ b/src/kernel/qobject.cpp
+@@ -471,11 +471,13 @@ QObject::~QObject()
+ blockSig = 0; // unblock signals to keep QGuardedPtr happy
+ emit destroyed( this );
+ emit destroyed();
+- if ( objname )
++ if ( objname ) {
+ delete [] (char*)objname;
++ }
+ objname = 0;
+- if ( pendTimer ) // might be pending timers
++ if ( pendTimer ) { // might be pending timers
+ qKillTimer( this );
++ }
+ QApplication::removePostedEvents( this );
+ if ( isTree ) {
+ remove_tree( this ); // remove from global root list
+@@ -755,12 +757,17 @@ QObject* QObject::child( const char *objName, const char *inheritsClass,
+ bool QObject::event( QEvent *e )
+ {
+ #if defined(QT_CHECK_NULL)
+- if ( e == 0 )
++ if ( e == 0 ) {
+ qWarning( "QObject::event: Null events are not permitted" );
++ }
+ #endif
++ if ( wasDeleted ) {
++ return TRUE;
++ }
+ if ( eventFilters ) { // try filters
+- if ( activate_filters(e) ) // stopped by a filter
++ if ( activate_filters(e) ) { // stopped by a filter
+ return TRUE;
++ }
+ }
+
+ switch ( e->type() ) {
+diff --git a/src/tools/qglist.cpp b/src/tools/qglist.cpp
+index b04ac75..fb94427 100644
+--- a/src/tools/qglist.cpp
++++ b/src/tools/qglist.cpp
+@@ -43,6 +43,10 @@
+ #include "qdatastream.h"
+ #include "qvaluelist.h"
+
++#if defined(QT_THREAD_SUPPORT)
++ #include "qmutex.h"
++#endif // defined(QT_THREAD_SUPPORT)
++
+ /*!
+ \class QLNode qglist.h
+ \reentrant
+@@ -221,6 +225,9 @@ QDataStream &QGList::write( QDataStream &s, QPtrCollection::Item ) const
+
+ QGList::QGList()
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex = new QMutex(true);
++#endif
+ firstNode = lastNode = curNode = 0; // initialize list
+ numNodes = 0;
+ curIndex = -1;
+@@ -234,6 +241,9 @@ QGList::QGList()
+ QGList::QGList( const QGList & list )
+ : QPtrCollection( list )
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex = new QMutex(true);
++#endif
+ firstNode = lastNode = curNode = 0; // initialize list
+ numNodes = 0;
+ curIndex = -1;
+@@ -258,6 +268,9 @@ QGList::~QGList()
+ // twice on the same address! This is insane but let's try not to crash
+ // here.
+ iterators = 0;
++#if defined(QT_THREAD_SUPPORT)
++ //delete mutex;
++#endif
+ }
+
+
+@@ -290,11 +303,13 @@ QGList& QGList::operator=( const QGList &list )
+
+ bool QGList::operator==( const QGList &list ) const
+ {
+- if ( count() != list.count() )
++ if ( count() != list.count() ) {
+ return FALSE;
++ }
+
+- if ( count() == 0 )
++ if ( count() == 0 ) {
+ return TRUE;
++ }
+
+ QLNode *n1 = firstNode;
+ QLNode *n2 = list.firstNode;
+@@ -322,8 +337,15 @@ bool QGList::operator==( const QGList &list ) const
+
+ QLNode *QGList::locate( uint index )
+ {
+- if ( index == (uint)curIndex ) // current node ?
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
++ if ( index == (uint)curIndex ) { // current node ?
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return curNode;
++ }
+ if ( !curNode && firstNode ) { // set current node
+ curNode = firstNode;
+ curIndex = 0;
+@@ -332,13 +354,18 @@ QLNode *QGList::locate( uint index )
+ int distance = index - curIndex; // node distance to cur node
+ bool forward; // direction to traverse
+
+- if ( index >= numNodes )
++ if ( index >= numNodes ) {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return 0;
++ }
+
+- if ( distance < 0 )
++ if ( distance < 0 ) {
+ distance = -distance;
++ }
+ if ( (uint)distance < index && (uint)distance < numNodes - index ) {
+- node = curNode; // start from current node
++ node = curNode; // start from current node
+ forward = index > (uint)curIndex;
+ } else if ( index < numNodes - index ) { // start from first node
+ node = firstNode;
+@@ -352,13 +379,18 @@ QLNode *QGList::locate( uint index )
+ forward = FALSE;
+ }
+ if ( forward ) { // now run through nodes
+- while ( distance-- )
++ while ( distance-- ) {
+ node = node->next;
++ }
+ } else {
+- while ( distance-- )
++ while ( distance-- ) {
+ node = node->prev;
++ }
+ }
+ curIndex = index; // must update index
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return curNode = node;
+ }
+
+@@ -369,6 +401,9 @@ QLNode *QGList::locate( uint index )
+
+ void QGList::inSort( QPtrCollection::Item d )
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ int index = 0;
+ register QLNode *n = firstNode;
+ while ( n && compareItems(n->data,d) < 0 ){ // find position in list
+@@ -376,6 +411,9 @@ void QGList::inSort( QPtrCollection::Item d )
+ index++;
+ }
+ insertAt( index, d );
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ }
+
+
+@@ -385,6 +423,9 @@ void QGList::inSort( QPtrCollection::Item d )
+
+ void QGList::prepend( QPtrCollection::Item d )
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ register QLNode *n = new QLNode( newItem(d) );
+ Q_CHECK_PTR( n );
+ n->prev = 0;
+@@ -395,6 +436,9 @@ void QGList::prepend( QPtrCollection::Item d )
+ firstNode = curNode = n; // curNode affected
+ numNodes++;
+ curIndex = 0;
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ }
+
+
+@@ -404,16 +448,24 @@ void QGList::prepend( QPtrCollection::Item d )
+
+ void QGList::append( QPtrCollection::Item d )
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ register QLNode *n = new QLNode( newItem(d) );
+ Q_CHECK_PTR( n );
+ n->next = 0;
+- if ( (n->prev = lastNode) ) // list is not empty
++ if ( (n->prev = lastNode) ) { // list is not empty
+ lastNode->next = n;
+- else // initialize list
++ }
++ else { // initialize list
+ firstNode = n;
++ }
+ lastNode = curNode = n; // curNode affected
+ curIndex = numNodes;
+ numNodes++;
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ }
+
+
+@@ -423,25 +475,43 @@ void QGList::append( QPtrCollection::Item d )
+
+ bool QGList::insertAt( uint index, QPtrCollection::Item d )
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ if ( index == 0 ) {
+ prepend( d );
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return TRUE;
+- } else if ( index == numNodes ) {
++ }
++ else if ( index == numNodes ) {
+ append( d );
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return TRUE;
+ }
+ QLNode *nextNode = locate( index );
+- if ( !nextNode )
++ if ( !nextNode ) {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return FALSE;
++ }
+ QLNode *prevNode = nextNode->prev;
+ register QLNode *n = new QLNode( newItem(d) );
+ Q_CHECK_PTR( n );
+ nextNode->prev = n;
++ Q_ASSERT( (!((curIndex > 0) && (!prevNode))) );
+ prevNode->next = n;
+ n->prev = prevNode; // link new node into list
+ n->next = nextNode;
+ curNode = n; // curIndex set by locate()
+ numNodes++;
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return TRUE;
+ }
+
+@@ -452,18 +522,30 @@ bool QGList::insertAt( uint index, QPtrCollection::Item d )
+
+ void QGList::relinkNode( QLNode *n )
+ {
+- if ( n == firstNode ) // already first
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
++ if ( n == firstNode ) { // already first
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return;
++ }
+ curNode = n;
+ unlink();
+ n->prev = 0;
+- if ( (n->next = firstNode) ) // list is not empty
++ if ( (n->next = firstNode) ) { // list is not empty
+ firstNode->prev = n;
+- else // initialize list
++ }
++ else { // initialize list
+ lastNode = n;
++ }
+ firstNode = curNode = n; // curNode affected
+ numNodes++;
+ curIndex = 0;
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ }
+
+
+@@ -473,8 +555,15 @@ void QGList::relinkNode( QLNode *n )
+
+ QLNode *QGList::unlink()
+ {
+- if ( curNode == 0 ) // null current node
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
++ if ( curNode == 0 ) { // null current node
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return 0;
++ }
+ register QLNode *n = curNode; // unlink this node
+ if ( n == firstNode ) { // removing first node ?
+ if ( (firstNode = n->next) ) {
+@@ -500,9 +589,13 @@ QLNode *QGList::unlink()
+ curIndex--;
+ }
+
+- if ( iterators )
++ if ( iterators ) {
+ iterators->notifyRemove( n, curNode );
++ }
+ numNodes--;
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return n;
+ }
+
+@@ -513,6 +606,9 @@ QLNode *QGList::unlink()
+
+ bool QGList::removeNode( QLNode *n )
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ #if defined(QT_CHECK_NULL)
+ if ( n == 0 || (n->prev && n->prev->next != n) ||
+ (n->next && n->next->prev != n) ) {
+@@ -526,6 +622,9 @@ bool QGList::removeNode( QLNode *n )
+ delete n;
+ curNode = firstNode;
+ curIndex = curNode ? 0 : -1;
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return TRUE;
+ }
+
+@@ -537,13 +636,27 @@ bool QGList::removeNode( QLNode *n )
+
+ bool QGList::remove( QPtrCollection::Item d )
+ {
+- if ( d && find(d) == -1 )
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
++ if ( d && find(d) == -1 ) {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return FALSE;
++ }
+ QLNode *n = unlink();
+- if ( !n )
++ if ( !n ) {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return FALSE;
++ }
+ deleteItem( n->data );
+ delete n;
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return TRUE;
+ }
+
+@@ -553,13 +666,27 @@ bool QGList::remove( QPtrCollection::Item d )
+
+ bool QGList::removeRef( QPtrCollection::Item d )
+ {
+- if ( findRef(d) == -1 )
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
++ if ( findRef(d) == -1 ) {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return FALSE;
++ }
+ QLNode *n = unlink();
+- if ( !n )
++ if ( !n ) {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return FALSE;
++ }
+ deleteItem( n->data );
+ delete n;
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return TRUE;
+ }
+
+@@ -581,13 +708,27 @@ bool QGList::removeRef( QPtrCollection::Item d )
+
+ bool QGList::removeAt( uint index )
+ {
+- if ( !locate(index) )
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
++ if ( !locate(index) ) {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return FALSE;
++ }
+ QLNode *n = unlink();
+- if ( !n )
++ if ( !n ) {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return FALSE;
++ }
+ deleteItem( n->data );
+ delete n;
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return TRUE;
+ }
+
+@@ -597,13 +738,23 @@ bool QGList::removeAt( uint index )
+ */
+ bool QGList::replaceAt( uint index, QPtrCollection::Item d )
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ QLNode *n = locate( index );
+- if ( !n )
++ if ( !n ) {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return FALSE;
++ }
+ if ( n->data != d ) {
+ deleteItem( n->data );
+ n->data = newItem( d );
+ }
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return TRUE;
+ }
+
+@@ -615,10 +766,16 @@ bool QGList::replaceAt( uint index, QPtrCollection::Item d )
+
+ QPtrCollection::Item QGList::takeNode( QLNode *n )
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ #if defined(QT_CHECK_NULL)
+ if ( n == 0 || (n->prev && n->prev->next != n) ||
+ (n->next && n->next->prev != n) ) {
+ qWarning( "QGList::takeNode: Corrupted node" );
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return 0;
+ }
+ #endif
+@@ -628,6 +785,9 @@ QPtrCollection::Item QGList::takeNode( QLNode *n )
+ delete n; // delete the node, not data
+ curNode = firstNode;
+ curIndex = curNode ? 0 : -1;
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return d;
+ }
+
+@@ -637,9 +797,15 @@ QPtrCollection::Item QGList::takeNode( QLNode *n )
+
+ QPtrCollection::Item QGList::take()
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ QLNode *n = unlink(); // unlink node
+ Item d = n ? n->data : 0;
+ delete n; // delete node, keep contents
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return d;
+ }
+
+@@ -649,11 +815,21 @@ QPtrCollection::Item QGList::take()
+
+ QPtrCollection::Item QGList::takeAt( uint index )
+ {
+- if ( !locate(index) )
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
++ if ( !locate(index) ) {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return 0;
++ }
+ QLNode *n = unlink(); // unlink node
+ Item d = n ? n->data : 0;
+ delete n; // delete node, keep contents
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return d;
+ }
+
+@@ -663,10 +839,16 @@ QPtrCollection::Item QGList::takeAt( uint index )
+
+ QPtrCollection::Item QGList::takeFirst()
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ first();
+ QLNode *n = unlink(); // unlink node
+ Item d = n ? n->data : 0;
+ delete n;
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return d;
+ }
+
+@@ -676,10 +858,16 @@ QPtrCollection::Item QGList::takeFirst()
+
+ QPtrCollection::Item QGList::takeLast()
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ last();
+ QLNode *n = unlink(); // unlink node
+ Item d = n ? n->data : 0;
+ delete n;
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return d;
+ }
+
+@@ -690,14 +878,18 @@ QPtrCollection::Item QGList::takeLast()
+
+ void QGList::clear()
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ register QLNode *n = firstNode;
+
+ firstNode = lastNode = curNode = 0; // initialize list
+ numNodes = 0;
+ curIndex = -1;
+
+- if ( iterators )
++ if ( iterators ) {
+ iterators->notifyClear( FALSE );
++ }
+
+ QLNode *prevNode;
+ while ( n ) { // for all nodes ...
+@@ -706,6 +898,9 @@ void QGList::clear()
+ n = n->next;
+ delete prevNode; // deallocate node
+ }
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ }
+
+
+@@ -716,6 +911,9 @@ void QGList::clear()
+
+ int QGList::findRef( QPtrCollection::Item d, bool fromStart )
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ register QLNode *n;
+ int index;
+ if ( fromStart ) { // start from first node
+@@ -731,6 +929,9 @@ int QGList::findRef( QPtrCollection::Item d, bool fromStart )
+ }
+ curNode = n;
+ curIndex = n ? index : -1;
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return curIndex; // return position of item
+ }
+
+@@ -742,6 +943,9 @@ int QGList::findRef( QPtrCollection::Item d, bool fromStart )
+
+ int QGList::find( QPtrCollection::Item d, bool fromStart )
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ register QLNode *n;
+ int index;
+ if ( fromStart ) { // start from first node
+@@ -757,6 +961,9 @@ int QGList::find( QPtrCollection::Item d, bool fromStart )
+ }
+ curNode = n;
+ curIndex = n ? index : -1;
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return curIndex; // return position of item
+ }
+
+@@ -767,6 +974,9 @@ int QGList::find( QPtrCollection::Item d, bool fromStart )
+
+ uint QGList::containsRef( QPtrCollection::Item d ) const
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ register QLNode *n = firstNode;
+ uint count = 0;
+ while ( n ) { // for all nodes...
+@@ -774,6 +984,9 @@ uint QGList::containsRef( QPtrCollection::Item d ) const
+ count++;
+ n = n->next;
+ }
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return count;
+ }
+
+@@ -784,6 +997,9 @@ uint QGList::containsRef( QPtrCollection::Item d ) const
+
+ uint QGList::contains( QPtrCollection::Item d ) const
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ register QLNode *n = firstNode;
+ uint count = 0;
+ QGList *that = (QGList*)this; // mutable for compareItems()
+@@ -792,6 +1008,9 @@ uint QGList::contains( QPtrCollection::Item d ) const
+ count++;
+ n = n->next;
+ }
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return count;
+ }
+
+@@ -839,10 +1058,19 @@ uint QGList::contains( QPtrCollection::Item d ) const
+
+ QPtrCollection::Item QGList::first()
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ if ( firstNode ) {
+ curIndex = 0;
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return (curNode=firstNode)->data;
+ }
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return 0;
+ }
+
+@@ -852,10 +1080,19 @@ QPtrCollection::Item QGList::first()
+
+ QPtrCollection::Item QGList::last()
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ if ( lastNode ) {
+ curIndex = numNodes-1;
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return (curNode=lastNode)->data;
+ }
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return 0;
+ }
+
+@@ -865,15 +1102,24 @@ QPtrCollection::Item QGList::last()
+
+ QPtrCollection::Item QGList::next()
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ if ( curNode ) {
+ if ( curNode->next ) {
+ curIndex++;
+ curNode = curNode->next;
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return curNode->data;
+ }
+ curIndex = -1;
+ curNode = 0;
+ }
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return 0;
+ }
+
+@@ -883,15 +1129,24 @@ QPtrCollection::Item QGList::next()
+
+ QPtrCollection::Item QGList::prev()
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ if ( curNode ) {
+ if ( curNode->prev ) {
+ curIndex--;
+ curNode = curNode->prev;
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return curNode->data;
+ }
+ curIndex = -1;
+ curNode = 0;
+ }
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return 0;
+ }
+
+@@ -902,9 +1157,16 @@ QPtrCollection::Item QGList::prev()
+
+ void QGList::toVector( QGVector *vector ) const
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ vector->clear();
+- if ( !vector->resize( count() ) )
++ if ( !vector->resize( count() ) ) {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return;
++ }
+ register QLNode *n = firstNode;
+ uint i = 0;
+ while ( n ) {
+@@ -912,10 +1174,16 @@ void QGList::toVector( QGVector *vector ) const
+ n = n->next;
+ i++;
+ }
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ }
+
+ void QGList::heapSortPushDown( QPtrCollection::Item* heap, int first, int last )
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ int r = first;
+ while( r <= last/2 ) {
+ // Node r has only one child ?
+@@ -950,6 +1218,9 @@ void QGList::heapSortPushDown( QPtrCollection::Item* heap, int first, int last )
+ }
+ }
+ }
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ }
+
+
+@@ -962,9 +1233,16 @@ void QGList::heapSortPushDown( QPtrCollection::Item* heap, int first, int last )
+
+ void QGList::sort()
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ uint n = count();
+- if ( n < 2 )
++ if ( n < 2 ) {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return;
++ }
+
+ // Create the heap
+ QPtrCollection::Item* realheap = new QPtrCollection::Item[ n ];
+@@ -995,6 +1273,9 @@ void QGList::sort()
+ }
+
+ delete [] realheap;
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ }
+
+
+@@ -1019,6 +1300,9 @@ QDataStream &operator<<( QDataStream &s, const QGList &list )
+
+ QDataStream &QGList::read( QDataStream &s )
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ uint num;
+ s >> num; // read number of items
+ clear(); // clear list
+@@ -1042,6 +1326,9 @@ QDataStream &QGList::read( QDataStream &s )
+ }
+ curNode = firstNode;
+ curIndex = curNode ? 0 : -1;
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return s;
+ }
+
+@@ -1051,12 +1338,18 @@ QDataStream &QGList::read( QDataStream &s )
+
+ QDataStream &QGList::write( QDataStream &s ) const
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ s << count(); // write number of items
+ QLNode *n = firstNode;
+ while ( n ) { // write all items
+ write( s, n->data );
+ n = n->next;
+ }
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return s;
+ }
+
+@@ -1068,9 +1361,15 @@ QDataStream &QGList::write( QDataStream &s ) const
+ */
+ QLNode* QGList::erase( QLNode* it )
+ {
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->lock();
++#endif
+ QLNode* n = it;
+ it = it->next;
+ removeNode( n );
++#if defined(QT_THREAD_SUPPORT)
++ //mutex->unlock();
++#endif
+ return it;
+ }
+
+diff --git a/src/tools/qglist.h b/src/tools/qglist.h
+index fadc46c..dfacf47 100644
+--- a/src/tools/qglist.h
++++ b/src/tools/qglist.h
+@@ -59,6 +59,8 @@ private:
+ QLNode( QPtrCollection::Item d ) { data = d; }
+ };
+
++class QMutex;
++class QGListPrivate;
+ class QGListIteratorList; // internal helper class
+
+ class Q_EXPORT QGList : public QPtrCollection // doubly linked generic list
+@@ -147,6 +149,12 @@ private:
+
+ QLNode *locate( uint ); // get node at i'th pos
+ QLNode *unlink(); // unlink node
++
++#if defined(QT_THREAD_SUPPORT)
++// QMutex* mutex;
++#endif
++
++// QGListPrivate* d;
+ };
+
+