#include "config.h"
#include "NewSpace.h"
#include "JSGlobalObject.h"
#include "JSCell.h"
#include "JSLock.h"
#include "JSObject.h"
#include "ScopeChain.h"
namespace JSC {
class Structure;
NewSpace::NewSpace(Heap* heap)
: m_waterMark(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 NewSpace::addBlock(SizeClass& sizeClass, MarkedBlock* block)
{
block->setInNewSpace(true);
sizeClass.nextBlock = block;
sizeClass.blockList.append(block);
ASSERT(!sizeClass.currentBlock);
ASSERT(!sizeClass.firstFreeCell);
sizeClass.currentBlock = block;
sizeClass.firstFreeCell = block->blessNewBlockForFastPath();
}
void NewSpace::removeBlock(MarkedBlock* block)
{
block->setInNewSpace(false);
SizeClass& sizeClass = sizeClassFor(block->cellSize());
if (sizeClass.nextBlock == block)
sizeClass.nextBlock = block->next();
sizeClass.blockList.remove(block);
}
void NewSpace::resetAllocator()
{
m_waterMark = 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 NewSpace::canonicalizeBlocks()
{
for (size_t cellSize = preciseStep; cellSize < preciseCutoff; cellSize += preciseStep)
sizeClassFor(cellSize).canonicalizeBlock();
for (size_t cellSize = impreciseStep; cellSize < impreciseCutoff; cellSize += impreciseStep)
sizeClassFor(cellSize).canonicalizeBlock();
}
}