#include "config.h"
#include "MarkedSpace.h"
#include "JSGlobalObject.h"
#include "JSLock.h"
#include "JSObject.h"
#include "ScopeChain.h"
namespace JSC {
class Structure;
MarkedSpace::MarkedSpace(Heap* heap)
: m_waterMark(0)
, m_nurseryWaterMark(0)
, m_highWaterMark(0)
, m_heap(heap)
{
for (size_t cellSize = preciseStep; cellSize <= preciseCutoff; cellSize += preciseStep)
sizeClassFor(cellSize).cellSize = cellSize;
for (size_t cellSize = impreciseStep; cellSize <= impreciseCutoff; cellSize += impreciseStep)
sizeClassFor(cellSize).cellSize = cellSize;
}
void MarkedSpace::addBlock(SizeClass& sizeClass, MarkedBlock* block)
{
ASSERT(!sizeClass.currentBlock);
ASSERT(!sizeClass.firstFreeCell);
sizeClass.blockList.append(block);
sizeClass.currentBlock = block;
sizeClass.firstFreeCell = block->sweep(MarkedBlock::SweepToFreeList);
}
void MarkedSpace::removeBlock(MarkedBlock* block)
{
SizeClass& sizeClass = sizeClassFor(block->cellSize());
if (sizeClass.currentBlock == block)
sizeClass.currentBlock = 0;
sizeClass.blockList.remove(block);
}
void MarkedSpace::resetAllocator()
{
m_waterMark = 0;
m_nurseryWaterMark = 0;
for (size_t cellSize = preciseStep; cellSize <= preciseCutoff; cellSize += preciseStep)
sizeClassFor(cellSize).resetAllocator();
for (size_t cellSize = impreciseStep; cellSize <= impreciseCutoff; cellSize += impreciseStep)
sizeClassFor(cellSize).resetAllocator();
}
void MarkedSpace::canonicalizeCellLivenessData()
{
for (size_t cellSize = preciseStep; cellSize <= preciseCutoff; cellSize += preciseStep)
sizeClassFor(cellSize).zapFreeList();
for (size_t cellSize = impreciseStep; cellSize <= impreciseCutoff; cellSize += impreciseStep)
sizeClassFor(cellSize).zapFreeList();
}
}