diff options
| author | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2012-12-06 18:29:37 -0600 |
|---|---|---|
| committer | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2012-12-06 18:29:37 -0600 |
| commit | caf80d88243aaa00e8f1baeaa6b7e4c3aca75f63 (patch) | |
| tree | 860926c1e01068a8d3b8ea120630a48cf537424b /src/kernel/qeventloop_x11.cpp | |
| parent | 78125ea2f051107b84fdc0354acdedb7885308ee (diff) | |
| download | qt3-caf80d88243aaa00e8f1baeaa6b7e4c3aca75f63.tar.gz qt3-caf80d88243aaa00e8f1baeaa6b7e4c3aca75f63.zip | |
Add threading tutorial and fix a couple rare crashes
Diffstat (limited to 'src/kernel/qeventloop_x11.cpp')
| -rw-r--r-- | src/kernel/qeventloop_x11.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/kernel/qeventloop_x11.cpp b/src/kernel/qeventloop_x11.cpp index cd3e865..5ee41ca 100644 --- a/src/kernel/qeventloop_x11.cpp +++ b/src/kernel/qeventloop_x11.cpp @@ -284,7 +284,8 @@ bool QEventLoop::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 QEventLoop::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 |