rcalloc0.h

开放源码的编译器open watcom 1.6.0版的源代码

/****************************************************************************
*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
*    Public License version 1.0 (the 'License'). You may not use this file
*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
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*    provided with the Original Code and Modifications, and is also
*    available at www.sybase.com/developer/opensource.
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* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
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****************************************************************************/


typedef struct FreeListInfo {
    char       *next;
} FreeListInfo;

typedef struct HeapList {
    struct HeapList    *next;
} HeapList;

typedef struct HeapHandle {
    HeapList             *list;
    int                   heapsize;
    int                   blocksize;
    char                 *freeList;
} HeapHandle;

#ifdef RCMEM_DEBUG
#define RCMEM_STARTBYTE      0x94
#define RCMEM_ENDBYTE        0xA1
#define RCMEM_GARBAGEBYTE    0xE2
typedef struct DebugMemInfo {
    unsigned long       size;
    char                startbyte;
} DebugMemInfo;
#endif

extern void RCMemLayer0Free( void *mem, HeapHandle *heap );
extern HeapHandle *RCMemLayer0NewHeap( int heapsize, int blocks_per_heap );
extern void RCMemLayer0ShutDown( HeapHandle *heap );

#ifdef RCMEM_DEBUG
extern void *RCMemLayer0Malloc( HeapHandle *heap, size_t size );
#else
extern void *RCMemLayer0Malloc( HeapHandle *heap );
#endif