void WeakSet::sweep()
{
for (WeakBlock* block = m_blocks.head(); block; block = block->next())
block->sweep();
resetAllocator();
}
WeakBlock::FreeCell* WeakSet::addAllocator()
{
WeakBlock* block = WeakBlock::create();
m_heap->didAllocate(WeakBlock::blockSize);
m_blocks.append(block);
WeakBlock::SweepResult sweepResult = block->takeSweepResult();
ASSERT(!sweepResult.isNull() && sweepResult.freeList);
return sweepResult.freeList;
}
WeakSet::~WeakSet()
{
WeakBlock* next = 0;
for (WeakBlock* block = m_blocks.head(); block; block = next) {
next = block->next();
WeakBlock::destroy(block);
}
m_blocks.clear();
}
WeakSet::~WeakSet()
{
WeakBlock* next = 0;
for (WeakBlock* block = m_blocks.head(); block; block = next) {
next = block->next();
heap()->blockAllocator().deallocate(WeakBlock::destroy(block));
}
m_blocks.clear();
}
WeakBlock::FreeCell* WeakSet::addAllocator()
{
if (!isOnList())
heap()->objectSpace().addActiveWeakSet(this);
WeakBlock* block = WeakBlock::create(*heap(), m_container);
heap()->didAllocate(WeakBlock::blockSize);
m_blocks.append(block);
WeakBlock::SweepResult sweepResult = block->takeSweepResult();
ASSERT(!sweepResult.isNull() && sweepResult.freeList);
return sweepResult.freeList;
}
WeakBlock::FreeCell* WeakSet::tryFindAllocator()
{
while (m_nextAllocator) {
WeakBlock* block = m_nextAllocator;
m_nextAllocator = m_nextAllocator->next();
WeakBlock::SweepResult sweepResult = block->takeSweepResult();
if (sweepResult.freeList)
return sweepResult.freeList;
}
return 0;
}
WeakSet::~WeakSet()
{
if (isOnList())
remove();
Heap& heap = *this->heap();
WeakBlock* next = 0;
for (WeakBlock* block = m_blocks.head(); block; block = next) {
next = block->next();
WeakBlock::destroy(heap, block);
}
m_blocks.clear();
}
void WeakSet::sweep()
{
WeakBlock* next;
for (WeakBlock* block = m_blocks.head(); block; block = next) {
next = block->next();
// If a block is completely empty, a new sweep won't have any effect.
if (block->isEmpty())
continue;
block->takeSweepResult(); // Force a new sweep by discarding the last sweep.
block->sweep();
}
}
void WeakSet::shrink()
{
WeakBlock* next;
for (WeakBlock* block = m_blocks.head(); block; block = next) {
next = block->next();
if (block->isEmpty())
removeAllocator(block);
}
resetAllocator();
if (m_blocks.isEmpty() && isOnList())
remove();
}
void WeakSet::sweep()
{
for (WeakBlock* block = m_blocks.head(); block;) {
heap()->sweepNextLogicallyEmptyWeakBlock();
WeakBlock* nextBlock = block->next();
block->sweep();
if (block->isLogicallyEmptyButNotFree()) {
// If this WeakBlock is logically empty, but still has Weaks pointing into it,
// we can't destroy it just yet. Detach it from the WeakSet and hand ownership
// to the Heap so we don't pin down the entire MarkedBlock or LargeAllocation.
m_blocks.remove(block);
heap()->addLogicallyEmptyWeakBlock(block);
block->disconnectContainer();
}
block = nextBlock;
}
resetAllocator();
}
void
WeakBlock::spreadHit()
{
//Destroy adjacent weakblocks if applicable
if(linked) {
Sector* sector = Sector::current();
if (!sector) {
log_debug << "no current sector" << std::endl;
return;
}
for(Sector::GameObjects::iterator i = sector->gameobjects.begin(); i != sector->gameobjects.end(); ++i) {
WeakBlock* wb = dynamic_cast<WeakBlock*>(i->get());
if (!wb) continue;
if (wb == this) continue;
if (wb->state != STATE_NORMAL) continue;
float dx = fabsf(wb->get_pos().x - bbox.p1.x);
float dy = fabsf(wb->get_pos().y - bbox.p1.y);
if ((dx <= 32.5) && (dy <= 32.5)) wb->startBurning();
}
}
}
bool Heap::sweepNextLogicallyEmptyWeakBlock()
{
if (m_indexOfNextLogicallyEmptyWeakBlockToSweep == WTF::notFound)
return false;
WeakBlock* block = m_logicallyEmptyWeakBlocks[m_indexOfNextLogicallyEmptyWeakBlockToSweep];
block->sweep();
if (block->isEmpty()) {
std::swap(m_logicallyEmptyWeakBlocks[m_indexOfNextLogicallyEmptyWeakBlockToSweep], m_logicallyEmptyWeakBlocks.last());
m_logicallyEmptyWeakBlocks.removeLast();
WeakBlock::destroy(block);
} else
m_indexOfNextLogicallyEmptyWeakBlockToSweep++;
if (m_indexOfNextLogicallyEmptyWeakBlockToSweep >= m_logicallyEmptyWeakBlocks.size()) {
m_indexOfNextLogicallyEmptyWeakBlockToSweep = WTF::notFound;
return false;
}
return true;
}
