diff options
Diffstat (limited to 'src/kernel')
| -rw-r--r-- | src/kernel/qapplication.cpp | 9 | ||||
| -rw-r--r-- | src/kernel/qeventloop_unix.cpp | 2 | ||||
| -rw-r--r-- | src/kernel/qeventloop_x11.cpp | 6 |
3 files changed, 13 insertions, 4 deletions
diff --git a/src/kernel/qapplication.cpp b/src/kernel/qapplication.cpp index 5b57bd249..6fade0228 100644 --- a/src/kernel/qapplication.cpp +++ b/src/kernel/qapplication.cpp @@ -2767,7 +2767,10 @@ bool TQApplication::internalNotify( TQObject *receiver, TQEvent * e) if (!handled) { #if defined(QT_THREAD_SUPPORT) - bool locked = TQApplication::tqt_mutex->locked(); + bool locked = false; + if (TQApplication::tqt_mutex) { + locked = TQApplication::tqt_mutex->locked(); + } if (locked) { TQApplication::tqt_mutex->unlock(); } @@ -2775,7 +2778,9 @@ bool TQApplication::internalNotify( TQObject *receiver, TQEvent * e) consumed = receiver->event( e ); #if defined(QT_THREAD_SUPPORT) if (locked) { - TQApplication::tqt_mutex->lock(); + if (TQApplication::tqt_mutex) { + TQApplication::tqt_mutex->lock(); + } } #endif } diff --git a/src/kernel/qeventloop_unix.cpp b/src/kernel/qeventloop_unix.cpp index ccdbb4b8d..1c391f413 100644 --- a/src/kernel/qeventloop_unix.cpp +++ b/src/kernel/qeventloop_unix.cpp @@ -562,6 +562,8 @@ int TQEventLoop::activateTimers() n_act++; TQTimerEvent e( t->id ); TQApplication::sendEvent( t->obj, &e ); // send event + if ( !timerList ) // sendEvent allows other threads to execute, therefore we must check for list existence when it returns! + return 0; if ( timerList->findRef( begin ) == -1 ) begin = 0; } diff --git a/src/kernel/qeventloop_x11.cpp b/src/kernel/qeventloop_x11.cpp index a2d8590f6..a733c115d 100644 --- a/src/kernel/qeventloop_x11.cpp +++ b/src/kernel/qeventloop_x11.cpp @@ -284,7 +284,8 @@ bool TQEventLoop::processEvents( ProcessEventsFlags flags ) // unlock the GUI mutex and select. when we return from this function, there is // something for us to do #if defined(QT_THREAD_SUPPORT) - locker.mutex()->unlock(); + if ( locker.mutex() ) locker.mutex()->unlock(); + else return false; #endif int nsel; @@ -298,7 +299,8 @@ bool TQEventLoop::processEvents( ProcessEventsFlags flags ) // relock the GUI mutex before processing any pending events #if defined(QT_THREAD_SUPPORT) - locker.mutex()->lock(); + if ( locker.mutex() ) locker.mutex()->lock(); + else return false; #endif // we are awake, broadcast it |