/*****************************************************************************
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*
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* Copyright (c) 2008-2010, CoreCodec, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of CoreCodec, Inc. nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY CoreCodec, Inc. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL CoreCodec, Inc. BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __MEMHEAP_H
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#define __MEMHEAP_H
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#define MEMHEAP_OPTIONAL 0x0001
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typedef struct cc_memheap cc_memheap;
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typedef void* (*memheap_alloc)(const void* This,size_t,int Flags);
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typedef void (*memheap_free)(const void* This,void*,size_t);
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typedef void* (*memheap_realloc)(const void* This,void*,size_t Old,size_t New);
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typedef void (*memheap_write)(const void* This,void*,const void* Src,size_t Pos,size_t Size);
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#define DATA_FLAG_HEAP (((size_t)1)<<(sizeof(size_t)*8-1))
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#define DATA_FLAG_MEMHEAP (((size_t)1)<<(sizeof(size_t)*8-2))
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typedef struct dataheaphead
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{
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const cc_memheap* Heap;
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size_t Size;
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} dataheaphead;
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struct cc_memheap
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{
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memheap_alloc Alloc;
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memheap_free Free;
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memheap_realloc ReAlloc;
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memheap_write Write;
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dataheaphead Null;
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};
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#define MemHeap_Alloc(p,a,b) ((cc_memheap*)(p))->Alloc(p,a,b)
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#define MemHeap_Free(p,a,b) ((cc_memheap*)(p))->Free(p,a,b)
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#define MemHeap_ReAlloc(p,a,b,c) ((cc_memheap*)(p))->ReAlloc(p,a,b,c)
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#define MemHeap_Write(p,a,b,c,d) ((cc_memheap*)(p))->Write(p,a,b,c,d)
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#define MemHeap_Null(p) ((uint8_t*)(&((cc_memheap*)(p))->Null+1))
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#define MEMHEAP_DEFAULT \
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static void* __HAlloc(const void* UNUSED_PARAM(p),size_t Size,int UNUSED_PARAM(Flags)) { return malloc(Size); }\
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static void __HFree(const void* UNUSED_PARAM(p),void* Ptr,size_t UNUSED_PARAM(Size)) { free(Ptr); }\
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static void* __HReAlloc(const void* UNUSED_PARAM(p),void* Ptr,size_t UNUSED_PARAM(OldSize),size_t Size) { return realloc(Ptr,Size); }\
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static void __HWrite(const void* UNUSED_PARAM(p),void* Ptr,const void* Src,size_t Pos,size_t Size) { memcpy((uint8_t*)Ptr+Pos,Src,Size); }\
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static const cc_memheap MemHeap_Default = { __HAlloc,__HFree,__HReAlloc,__HWrite,{ &MemHeap_Default, DATA_FLAG_MEMHEAP } };
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#endif
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