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Fix for a potential data race condition

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This commit is contained in:
rajithr 2015-05-27 15:00:21 +05:30
parent ff6881efbf
commit 993e0b0bf9
1 changed files with 7 additions and 19 deletions
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26
modules/objdetect/src/detection_based_tracker.cpp
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@ -286,6 +286,13 @@ void* cv::workcycleObjectDetectorFunction(void* p)
try{ try{
((cv::DetectionBasedTracker::SeparateDetectionWork*)p)->lock(); ((cv::DetectionBasedTracker::SeparateDetectionWork*)p)->lock();
((cv::DetectionBasedTracker::SeparateDetectionWork*)p)->stateThread = cv::DetectionBasedTracker::SeparateDetectionWork::STATE_THREAD_STOPPED; ((cv::DetectionBasedTracker::SeparateDetectionWork*)p)->stateThread = cv::DetectionBasedTracker::SeparateDetectionWork::STATE_THREAD_STOPPED;
((cv::DetectionBasedTracker::SeparateDetectionWork*)p)->isObjectDetectingReady=false;
((cv::DetectionBasedTracker::SeparateDetectionWork*)p)->shouldObjectDetectingResultsBeForgot=false;
#ifdef USE_STD_THREADS
objectDetectorThreadStartStop.notify_one();
#else
pthread_cond_signal(&objectDetectorThreadStartStop);
#endif
((cv::DetectionBasedTracker::SeparateDetectionWork*)p)->unlock(); ((cv::DetectionBasedTracker::SeparateDetectionWork*)p)->unlock();
} catch(...) { } catch(...) {
LOGE0("DetectionBasedTracker: workcycleObjectDetectorFunction: ERROR concerning pointer, received as the function parameter"); LOGE0("DetectionBasedTracker: workcycleObjectDetectorFunction: ERROR concerning pointer, received as the function parameter");
@ -439,25 +446,6 @@ void cv::DetectionBasedTracker::SeparateDetectionWork::workcycleObjectDetector()
objects.clear(); objects.clear();
}// while(isWorking()) }// while(isWorking())
#ifdef USE_STD_THREADS
mtx_lock.lock();
#else
pthread_mutex_lock(&mutex);
#endif
stateThread=STATE_THREAD_STOPPED;
isObjectDetectingReady=false;
shouldObjectDetectingResultsBeForgot=false;
#ifdef USE_STD_THREADS
objectDetectorThreadStartStop.notify_one();
mtx_lock.unlock();
#else
pthread_cond_signal(&objectDetectorThreadStartStop);
pthread_mutex_unlock(&mutex);
#endif
LOGI("DetectionBasedTracker::SeparateDetectionWork::workcycleObjectDetector: Returning"); LOGI("DetectionBasedTracker::SeparateDetectionWork::workcycleObjectDetector: Returning");
} }