root/MMgc/GCLargeAlloc-inlines.h
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#ifndef __GCLargeAlloc_inlines__
#define __GCLargeAlloc_inlines__
namespace MMgc
{
/*static*/
REALLY_INLINE GCLargeAlloc::LargeBlock* GCLargeAlloc::GetLargeBlock(const void *addr)
{
return (LargeBlock*)GetBlockHeader(addr);
}
/*static*/
REALLY_INLINE GCLargeAlloc::LargeBlock* GCLargeAlloc::Next(LargeBlock* b)
{
return (LargeBlock*)b->next;
}
/*static*/
REALLY_INLINE void GCLargeAlloc::SetHasWeakRef(const void *item, bool to)
{
if(to) {
GetLargeBlock(item)->flags |= kHasWeakRef;
} else {
GetLargeBlock(item)->flags &= ~kHasWeakRef;
}
}
/*static*/
REALLY_INLINE bool GCLargeAlloc::HasWeakRef(const void *item)
{
return (GetLargeBlock(item)->flags & kHasWeakRef) != 0;
}
/*static*/
REALLY_INLINE bool GCLargeAlloc::IsLargeBlock(const void *item)
{
// The pointer should be 4K aligned plus 16 bytes
// Mac inserts 16 bytes for new[] so make it more general
return (((uintptr_t)item & 0xFFF) == sizeof(LargeBlock));
}
/*static*/
REALLY_INLINE bool GCLargeAlloc::SetMark(const void *item)
{
LargeBlock *block = GetLargeBlock(item);
bool oldMark = (block->flags & kMarkFlag) != 0;
block->flags |= kMarkFlag;
block->flags &= ~kQueuedFlag;
return oldMark;
}
/*static*/
REALLY_INLINE void GCLargeAlloc::SetFinalize(const void *item)
{
LargeBlock *block = GetLargeBlock(item);
block->flags |= kFinalizeFlag;
}
/*static*/
REALLY_INLINE bool GCLargeAlloc::GetMark(const void *item)
{
LargeBlock *block = GetLargeBlock(item);
return (block->flags & kMarkFlag) != 0;
}
#ifdef _DEBUG
/*static*/
REALLY_INLINE bool GCLargeAlloc::IsWhite(const void *item)
{
LargeBlock *block = GetLargeBlock(item);
if(!IsLargeBlock(item))
return false;
return (block->flags & (kMarkFlag|kQueuedFlag)) == 0;
}
#endif
/*static*/
REALLY_INLINE bool GCLargeAlloc::IsMarkedThenMakeQueued(const void *item)
{
LargeBlock *block = GetLargeBlock(item);
if ((block->flags & kMarkFlag) != 0) {
block->flags ^= kMarkFlag|kQueuedFlag;
return true;
}
return false;
}
/*static*/
REALLY_INLINE bool GCLargeAlloc::IsQueued(const void *item)
{
LargeBlock *block = GetLargeBlock(item);
return (block->flags & kQueuedFlag) != 0;
}
/*static*/
REALLY_INLINE void* GCLargeAlloc::FindBeginning(const void *item)
{
LargeBlock *block = GetLargeBlock(item);
return (void*) (block+1);
}
/*static*/
REALLY_INLINE void GCLargeAlloc::ClearFinalized(const void *item)
{
LargeBlock *block = GetLargeBlock(item);
block->flags &= ~kFinalizeFlag;
}
/*static*/
REALLY_INLINE bool GCLargeAlloc::ContainsPointers(const void *item)
{
LargeBlock *block = GetLargeBlock(item);
return (block->flags & kContainsPointers) != 0;
}
/*static*/
REALLY_INLINE bool GCLargeAlloc::IsFinalized(const void *item)
{
LargeBlock *block = GetLargeBlock(item);
return (block->flags & kFinalizeFlag) != 0;
}
/*static*/
REALLY_INLINE bool GCLargeAlloc::IsRCObject(const void *item)
{
LargeBlock *block = GetLargeBlock(item);
return (block->flags & kRCObject) != 0;
}
/*static*/
REALLY_INLINE bool GCLargeAlloc::NeedsFinalize(LargeBlock *block)
{
return (block->flags & kFinalizeFlag) != 0;
}
/*static*/
REALLY_INLINE void GCLargeAlloc::ClearQueued(const void *item)
{
LargeBlock *block = GetLargeBlock(item);
block->flags &= ~kQueuedFlag;
}
REALLY_INLINE int GCLargeAlloc::LargeBlock::GetNumBlocks() const
{
return (size + sizeof(LargeBlock)) / GCHeap::kBlockSize;
}
REALLY_INLINE GCLargeAllocIterator::GCLargeAllocIterator(MMgc::GCLargeAlloc* alloc)
: alloc(alloc)
, block(alloc->m_blocks)
{
}
REALLY_INLINE bool GCLargeAllocIterator::GetNextMarkedObject(void*& out_ptr, uint32_t& out_size)
{
while (block != NULL) {
GCLargeAlloc::LargeBlock* b = block;
block = GCLargeAlloc::Next(block);
if ((b->flags & (GCLargeAlloc::kContainsPointers|GCLargeAlloc::kMarkFlag)) == (GCLargeAlloc::kContainsPointers|GCLargeAlloc::kMarkFlag)) {
out_ptr = GetUserPointer(b+1);
out_size = b->size - (uint32_t)DebugSize();
return true;
}
}
return false;
}
}
#endif /* __GCLargeAlloc_inlines__ */