/**
* Perform a (global) collection phase.
*
* @param phaseId Collection phase to execute.
*/
@NoInline
public void collectionPhase(short phaseId) {
if (phaseId == SET_COLLECTION_KIND) {
super.collectionPhase(phaseId);
gcFullHeap = requiresFullHeapCollection();
return;
}
if (phaseId == PREPARE) {
nurserySpace.prepare(true);
if (traceFullHeap()) {
if (gcFullHeap) {
if (Stats.gatheringStats()) fullHeap.set();
fullHeapTime.start();
}
super.collectionPhase(phaseId);
// we can throw away the remsets (but not modbuf) for a full heap GC
remsetPool.clearDeque(1);
arrayRemsetPool.clearDeque(2);
}
return;
}
if (phaseId == CLOSURE) {
if (!traceFullHeap()) {
nurseryTrace.prepare();
}
return;
}
if (phaseId == RELEASE) {
nurserySpace.release();
modbufPool.clearDeque(1);
remsetPool.clearDeque(1);
arrayRemsetPool.clearDeque(2);
if (!traceFullHeap()) {
nurseryTrace.release();
} else {
super.collectionPhase(phaseId);
if (gcFullHeap) fullHeapTime.stop();
}
nextGCFullHeap = (getPagesAvail() < Options.nurserySize.getMinNursery());
return;
}
super.collectionPhase(phaseId);
}
/** Register specialized methods. */
@Interruptible
protected void registerSpecializedMethods() {
TransitiveClosure.registerSpecializedScan(SCAN_NURSERY, GenNurseryTraceLocal.class);
super.registerSpecializedMethods();
}
/**
* Print pre-collection statistics. In this class we prefix the output indicating whether the
* collection was full heap or not.
*/
public void printPreStats() {
if ((Options.verbose.getValue() >= 1) && (gcFullHeap)) Log.write("[Full heap]");
super.printPreStats();
}