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Fixed issue #518 (Occasional crash using batch queue)

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This commit is contained in:
Oliver Duis 2011-02-04 19:33:51 +01:00
parent d7075d2928
commit 301c8fa2b6
1 changed files with 11 additions and 3 deletions
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14
rtgui/bqentryupdater.cc
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@ -69,12 +69,20 @@ void BatchQueueEntryUpdater::process_ () {
tostop = false; tostop = false;
// TODO: process visible jobs first // TODO: process visible jobs first
while (!tostop && !jqueue.empty ()) { bool isEmpty=false;
while (!tostop && !isEmpty) {
qMutex->lock (); qMutex->lock ();
Job current = jqueue.front (); isEmpty=jqueue.empty (); // do NOT put into while() since it must be within mutex section
Job current;
if (!isEmpty) {
current = jqueue.front ();
jqueue.pop_front (); jqueue.pop_front ();
}
qMutex->unlock (); qMutex->unlock ();
if (current.listener) {
if (!isEmpty && current.listener) {
int neww = current.newh * current.ow / current.oh; int neww = current.newh * current.ow / current.oh;
guint8* img = new guint8 [current.newh*neww*3]; guint8* img = new guint8 [current.newh*neww*3];
thumbInterp (current.oimg, current.ow, current.oh, img, neww, current.newh); thumbInterp (current.oimg, current.ow, current.oh, img, neww, current.newh);