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Added a check of the DetectionBasedTracker's inner state in the main thread function of this class.

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This change should fix a multithread bug in the class.
This commit is contained in:
Leonid Beynenson 2012-05-22 13:24:37 +00:00
parent 32c7eeca78
commit 32878f8577
1 changed files with 5 additions and 0 deletions
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5
modules/contrib/src/detection_based_tracker.cpp
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@ -241,6 +241,11 @@ void DetectionBasedTracker::SeparateDetectionWork::workcycleObjectDetector()
CV_Assert(stateThread==STATE_THREAD_WORKING_SLEEPING); CV_Assert(stateThread==STATE_THREAD_WORKING_SLEEPING);
pthread_mutex_lock(&mutex); pthread_mutex_lock(&mutex);
if (!isWorking()) {//it is a rare case, but may cause a crash
LOGD("DetectionBasedTracker::SeparateDetectionWork::workcycleObjectDetector() --- go out from the workcycle from inner part of lock just before waiting");
pthread_mutex_unlock(&mutex);
break;
}
CV_Assert(stateThread==STATE_THREAD_WORKING_SLEEPING); CV_Assert(stateThread==STATE_THREAD_WORKING_SLEEPING);
pthread_cond_wait(&objectDetectorRun, &mutex); pthread_cond_wait(&objectDetectorRun, &mutex);
if (isWorking()) { if (isWorking()) {