139 lines
6.3 KiB
C
139 lines
6.3 KiB
C
/*
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* This file is part of the COMROGUE Operating System for Raspberry Pi
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*
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* Copyright (c) 2013, Eric J. Bowersox / Erbosoft Enterprises
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* All rights reserved.
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*
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* This program is free for commercial and non-commercial use as long as the following conditions are
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* adhered to.
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*
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* Copyright in this file remains Eric J. Bowersox and/or Erbosoft, and as such any copyright notices
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* in the code are not to be removed.
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*
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* Redistribution and use in source and binary forms, with or without modification, are permitted
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* provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this list of conditions and
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* the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
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* the following disclaimer in the documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* "Raspberry Pi" is a trademark of the Raspberry Pi Foundation.
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*/
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/*
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* This code is based on/inspired by jemalloc-3.3.1. Please see LICENSE.jemalloc for further details.
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*/
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#ifndef __HEAP_INTERNALS_H_INCLUDED
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#define __HEAP_INTERNALS_H_INCLUDED
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#ifdef __COMROGUE_INTERNALS__
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#ifndef __ASM__
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#include <comrogue/compiler_macros.h>
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#include <comrogue/types.h>
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#include <comrogue/objectbase.h>
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#include <comrogue/connpoint.h>
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#include <comrogue/allocator.h>
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#include <comrogue/mutex.h>
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#include <comrogue/heap.h>
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#include <comrogue/objhelp.h>
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#include <comrogue/internals/rbtree.h>
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/*-------------------
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* Extent management
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*-------------------
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*/
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/* Tree of extents managed by the heap management code. */
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typedef struct tagEXTENT_NODE
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{
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RBTREENODE rbtnSizeAddress; /* tree node for size and address ordering */
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RBTREENODE rbtnAddress; /* tree node for address ordering */
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/* TODO prof_ctx? */
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PVOID pv; /* base pointer to region */
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SIZE_T sz; /* size of region */
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BOOL fZeroed; /* is this extent zeroed? */
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} EXTENT_NODE, *PEXTENT_NODE;
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typedef PEXTENT_NODE *PPEXTENT_NODE;
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/*----------------------------------
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* The actual heap data declaration
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*----------------------------------
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*/
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typedef struct tagHEAPDATA {
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IMalloc mallocInterface; /* pointer to IMalloc interface - MUST BE FIRST! */
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IConnectionPointContainer cpContainerInterface; /* pointer to IConnectionPointContainer interface */
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UINT32 uiRefCount; /* reference count */
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UINT32 uiFlags; /* flags word */
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PFNRAWHEAPDATAFREE pfnFreeRawHeapData; /* pointer to function that frees the raw heap data, if any */
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IChunkAllocator *pChunkAllocator; /* chunk allocator pointer */
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IMutexFactory *pMutexFactory; /* mutex factory pointer */
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FIXEDCPDATA fcpMallocSpy; /* connection point for IMallocSpy */
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FIXEDCPDATA fcpSequentialStream; /* connection point for ISequentialStream for debugging */
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IMallocSpy *pMallocSpy; /* IMallocSpy interface for the allocator */
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ISequentialStream *pDebugStream; /* debugging output stream */
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UINT32 nChunkBits; /* number of bits in a chunk */
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UINT32 szChunk; /* size of a chunk */
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UINT32 uiChunkSizeMask; /* bitmask for a chunk */
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UINT32 cpgChunk; /* number of pages in a chunk */
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RBTREE rbtExtSizeAddr; /* tree ordering extents by size and address */
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RBTREE rbtExtAddr; /* tree ordering extents by address */
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IMutex *pmtxBase; /* base mutex */
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PVOID pvBasePages; /* pages being used for internal memory allocation */
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PVOID pvBaseNext; /* next allocation location */
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PVOID pvBasePast; /* address immediately past pvBasePages */
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PEXTENT_NODE pexnBaseNodes; /* pointer to base nodes */
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} HEAPDATA, *PHEAPDATA;
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/*-------------------------------------
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* Internal chunk management functions
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*-------------------------------------
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*/
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/* Get chunk address for allocated address a. */
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#define CHUNK_ADDR2BASE(phd, a) ((PVOID)(((UINT_PTR)(a)) & ~((phd)->uiChunkSizeMask)))
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/* Get chunk offset of allocated address a. */
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#define CHUNK_ADDR2OFFSET(phd, a) ((SIZE_T)(((UINT_PTR)(a)) & (phd)->uiChunkSizeMask))
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/* Return the smallest chunk size multiple that can contain a certain size. */
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#define CHUNK_CEILING(phd, sz) (((sz) + (phd)->uiChunkSizeMask) & ~((phd)->uiChunkSizeMask))
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extern PVOID _HeapChunkAlloc(PHEAPDATA phd, SIZE_T sz, SIZE_T szAlignment, BOOL fBase, BOOL *pfZeroed);
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extern void _HeapChunkUnmap(PHEAPDATA phd, PVOID pvChunk, SIZE_T sz);
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extern void _HeapChunkDeAlloc(PHEAPDATA phd, PVOID pvChunk, SIZE_T sz, BOOL fUnmap);
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extern HRESULT _HeapChunkSetup(PHEAPDATA phd);
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extern void _HeapChunkShutdown(PHEAPDATA phd);
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/*------------------------------------
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* Internal base management functions
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*------------------------------------
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*/
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CDECL_BEGIN
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extern PVOID _HeapBaseAlloc(PHEAPDATA phd, SIZE_T sz);
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extern PEXTENT_NODE _HeapBaseNodeAlloc(PHEAPDATA phd);
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extern void _HeapBaseNodeDeAlloc(PHEAPDATA phd, PEXTENT_NODE pexn);
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extern HRESULT _HeapBaseSetup(PHEAPDATA phd);
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extern void _HeapBaseShutdown(PHEAPDATA phd);
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CDECL_END
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#endif /* __ASM__ */
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#endif /* __COMROGUE_INTERNALS__ */
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#endif /* __HEAP_INTERNALS_H_INCLUDED */
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