MBlock.h

/* -----------------------------------------------------------------------------
 *
 * (c) The GHC Team, 1998-2008
 *
 * MegaBlock Allocator interface.
 *
 * See wiki commentary at
 *  https://gitlab.haskell.org/ghc/ghc/wikis/commentary/heap-alloced
 *
 * ---------------------------------------------------------------------------*/

#pragma once

extern W_ peak_mblocks_allocated;
extern W_ mblocks_allocated;

extern void initMBlocks(void);
extern void * getMBlock(void);
extern void * getMBlocks(uint32_t n);
extern void * getMBlockOnNode(uint32_t node);
extern void * getMBlocksOnNode(uint32_t node, uint32_t n);
extern void freeMBlocks(void *addr, uint32_t n);
extern void releaseFreeMemory(void);
extern void freeAllMBlocks(void);

extern void *getFirstMBlock(void **state);
extern void *getNextMBlock(void **state, void *mblock);

#if defined(THREADED_RTS)
// needed for HEAP_ALLOCED below
extern SpinLock gc_alloc_block_sync;
#endif