void
MM_SweepSchemeSegregated::sweepRegion(MM_EnvironmentBase *env, MM_HeapRegionDescriptorSegregated *region)
{
region->getMemoryPoolACL()->resetCounts();
switch (region->getRegionType()) {
case MM_HeapRegionDescriptor::SEGREGATED_SMALL:
sweepSmallRegion(env, region);
if (isClearMarkMapAfterSweep()) {
unmarkRegion(env, region);
}
addBytesFreedAfterSweep(env, region);
break;
#if defined(OMR_GC_ARRAYLETS)
case MM_HeapRegionDescriptor::ARRAYLET_LEAF:
sweepArrayletRegion(env, region);
addBytesFreedAfterSweep(env, region);
break;
#endif /* defined(OMR_GC_ARRAYLETS) */
case MM_HeapRegionDescriptor::SEGREGATED_LARGE:
sweepLargeRegion(env, region);
break;
default:
Assert_MM_unreachable();
}
}
void updateMarked(void)
{
if (base + cursor > oldbase + oldcursor) {
if (mark_min == mark_max) {
mark_max = base + cursor;
} else if (oldbase + oldcursor == mark_min) {
if (base + cursor <= mark_max) {
mark_min = base + cursor;
unmarkRegion(oldbase + oldcursor, mark_min - 1);
} else {
unmarkRegion(oldbase + oldcursor, mark_max);
mark_min = mark_max;
mark_max = base + cursor;
}
} else {
mark_max = base + cursor;
}
} else if (base + cursor < oldbase + oldcursor){
if (mark_min == mark_max) {
mark_min = base + cursor;
} else if (oldbase + oldcursor == mark_max) {
if (base + cursor >= mark_min) {
mark_max = base + cursor;
unmarkRegion(mark_max + 1, oldbase + oldcursor);
} else {
unmarkRegion(mark_min, oldbase + oldcursor);
markRegion(base + cursor, mark_min - 1);
mark_max = mark_min;
mark_min = base + cursor;
}
} else {
mark_min = base + cursor;
}
}
if (mark_max >= getfilesize()) mark_max = getfilesize() - 1;
markSelectedRegion();
}
void unmarkAll(void) { unmarkRegion(base, base + nbBytes - 1); }
