// Assumes _tlcBuffer/_tlcBufferCount hold the garbage list
void ThreadLocalCollector::evict_local_garbage() {
// scan the garbage blocks to evict all blocks reachable from the garbage list
size_t evict_cursor = _tlcBufferCount;
size_t scan_cursor = 0;
while (scan_cursor < _tlcBufferCount) {
void *block = _tlcBuffer[scan_cursor++];
Subzone *subzone = Subzone::subzone(block);
usword_t q = subzone->quantum_index_unchecked(block);
if (subzone->is_scanned(q)) {
scan_local_block(subzone, q, block);
}
}
usword_t global_size = 0;
while (evict_cursor < _tlcBufferCount) {
void *block = _tlcBuffer[evict_cursor++];
// evict this block, since it is reachable from garbage, but not itself garbage.
Subzone *subzone = Subzone::subzone(block);
usword_t q = subzone->quantum_index_unchecked(block);
subzone->make_global(q);
_localBlocks.remove(block);
global_size += subzone->size(q);
}
if (global_size != 0)
_zone->adjust_allocation_counter(global_size);
}
//
// scan_marked_blocks
//
// scans all the blocks in _tlcBuffer
//
void ThreadLocalCollector::scan_marked_blocks() {
size_t index = 0;
while (index < _tlcBufferCount) {
void *block = _tlcBuffer[index++];
Subzone *subzone = Subzone::subzone(block);
usword_t q = subzone->quantum_index_unchecked(block);
if (subzone->should_scan_local_block(q)) {
scan_local_block(subzone, q, block);
}
}
}
//
// scan_marked_blocks
//
void ThreadLocalCollector::scan_marked_blocks() {
for (uint32_t i = _localBlocks.firstOccupiedSlot(), last = _localBlocks.lastOccupiedSlot(); i <= last; i++) {
void *block = _localBlocks.markedUnscannedPointerAtIndex(i);
if (block) {
Subzone *subzone = Subzone::subzone(block);
if (subzone->should_scan_local_block(block)) {
scan_local_block(block);
}
}
}
}
