< prev index next >

src/hotspot/share/gc/parallel/gcTaskThread.cpp

Print this page

        

*** 75,86 **** GCTaskTimeStamp* GCTaskThread::time_stamp_at(uint index) { assert(index < GCTaskTimeStampEntries, "Precondition"); if (_time_stamps == NULL) { // We allocate the _time_stamps array lazily since logging can be enabled dynamically GCTaskTimeStamp* time_stamps = NEW_C_HEAP_ARRAY(GCTaskTimeStamp, GCTaskTimeStampEntries, mtGC); ! void* old = Atomic::cmpxchg_ptr(time_stamps, &_time_stamps, NULL); ! if (old != NULL) { // Someone already setup the time stamps FREE_C_HEAP_ARRAY(GCTaskTimeStamp, time_stamps); } } return &(_time_stamps[index]); --- 75,85 ---- GCTaskTimeStamp* GCTaskThread::time_stamp_at(uint index) { assert(index < GCTaskTimeStampEntries, "Precondition"); if (_time_stamps == NULL) { // We allocate the _time_stamps array lazily since logging can be enabled dynamically GCTaskTimeStamp* time_stamps = NEW_C_HEAP_ARRAY(GCTaskTimeStamp, GCTaskTimeStampEntries, mtGC); ! if (Atomic::cmpxchg(time_stamps, &_time_stamps, (GCTaskTimeStamp*)NULL) != NULL) { // Someone already setup the time stamps FREE_C_HEAP_ARRAY(GCTaskTimeStamp, time_stamps); } } return &(_time_stamps[index]);
< prev index next >