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/* -----------------------------------------------------------------------------
*
* (c) The GHC Team 1998-2014
*
* GC support for immutable non-GCed structures
*
* Documentation on the architecture of the Garbage Collector can be
* found in the online commentary:
*
* http://ghc.haskell.org/trac/ghc/wiki/Commentary/Rts/Storage/GC
*
* ---------------------------------------------------------------------------*/
#ifndef SM_CNF_H
#define SM_CNF_H
#include "BeginPrivate.h"
void initCompact (void);
void exitCompact (void);
StgCompactNFData *compactNew (Capability *cap,
StgWord size);
StgPtr compactAppend(Capability *cap,
StgCompactNFData *str,
StgClosure *what,
StgWord share);
void compactResize(Capability *cap,
StgCompactNFData *str,
StgWord new_size);
void compactFree (StgCompactNFData *str);
void compactMarkKnown(StgCompactNFData *str);
StgWord compactContains(StgCompactNFData *str,
StgPtr what);
StgWord countCompactBlocks(bdescr *outer);
StgCompactNFDataBlock *compactAllocateBlock(Capability *cap,
StgWord size,
StgCompactNFDataBlock *previous);
StgPtr compactFixupPointers(StgCompactNFData *str,
StgClosure *root);
INLINE_HEADER StgCompactNFDataBlock *objectGetCompactBlock (StgClosure *closure);
INLINE_HEADER StgCompactNFDataBlock *objectGetCompactBlock (StgClosure *closure)
{
bdescr *object_block, *head_block;
object_block = Bdescr((StgPtr)closure);
ASSERT ((object_block->flags & BF_COMPACT) != 0);
if (object_block->blocks == 0)
head_block = object_block->link;
else
head_block = object_block;
ASSERT ((head_block->flags & BF_COMPACT) != 0);
return (StgCompactNFDataBlock*)(head_block->start);
}
INLINE_HEADER StgCompactNFData *objectGetCompact (StgClosure *closure);
INLINE_HEADER StgCompactNFData *objectGetCompact (StgClosure *closure)
{
StgCompactNFDataBlock *block = objectGetCompactBlock (closure);
return block->owner;
}
#include "EndPrivate.h"
#endif // SM_COMPACT_H
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