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168 lines
4.6 KiB
168 lines
4.6 KiB
/***
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*malloc.h - declarations and definitions for memory allocation functions
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*
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* Copyright (c) 1985-1993, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* Contains the function declarations for memory allocation functions;
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* also defines manifest constants and types used by the heap routines.
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* [System V]
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*
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*Revision History:
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* 01-08-87 JMB Standardized header, added heap consistency routines
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* 02-26-87 BCM added the manifest constant _HEAPBADPTR
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* 04-13-87 JCR Added size_t and "void *" to declarations
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* 04-24-87 JCR Added 'defined' statements around _heapinfo
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* 05-15-87 SKS Cleaned up _CDECL and near/far ptr declarations
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* corrected #ifdef usage, and added _amblksiz
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* 12-11-87 JCR Added "_loadds" functionality
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* 12-18-87 JCR Added _FAR_ to declarations
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* 02-05-88 JCR Added DLL _amblksiz support
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* 02-10-88 JCR Cleaned up white space
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* 04-21-88 WAJ Added _FAR_ to halloc/_fmalloc/_nmalloc
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* 05-13-88 GJF Added new heap functions
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* 05-18-88 GJF Removed #defines, added prototypes for _heapchk, _heapset
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* and _heapwalk
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* 05-25-88 GJF Added _bheapseg
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* 08-22-88 GJF Modified to also work for the 386 (small model only,
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* no far or based heap support)
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* 12-07-88 JCR DLL refers to _amlbksiz directly now
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* 01-10-89 JCR Removed sbrk() prototype
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* 04-28-89 SKS Put parentheses around negative constants
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* 05-03-89 JCR Added _INTERNAL_IFSTRIP for relinc usage
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* 08-01-89 GJF Cleanup, now specific to OS/2 2.0 (i.e., 386 flat model)
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* 10-27-89 JCR Removed near (_n) and _freect/memavl/memmax prototypes
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* 10-30-89 GJF Fixed copyright
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* 11-02-89 JCR Changed "DLL" to "_DLL"
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* 03-01-90 GJF Added #ifndef _INC_MALLOC and #include <cruntime.h>
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* stuff. Also, removed some (now) useless preprocessor
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* directives.
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* 03-21-90 GJF Replaced _cdecl with _CALLTYPE1 in prototypes.
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* 04-10-90 GJF Made stackavail() _CALLTYPE1, _amblksiz _VARTYPE1.
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* 01-17-91 GJF ANSI naming.
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* 08-20-91 JCR C++ and ANSI naming
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* 09-23-91 JCR stackavail() not supported in WIN32
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* 09-28-91 JCR ANSI names: DOSX32=prototypes, WIN32=#defines for now
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* 01-18-92 JCR put _CRTHEAP_ ifdefs in; this stuff is only needed
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* for a heap implemented in the runtime (not OS)
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* 08-05-92 GJF Function calling type and variable type macros.
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* 08-22-92 SRW Add alloca intrinsic pragma for MIPS
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* 09-03-92 GJF Merged two changes above.
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* 09-23-92 SRW Change winheap code to call NT directly always
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* 01-21-93 GJF Removed support for C6-386's _cdecl.
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* 02-02-93 SRW Removed bogus semicolon on #pragma
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* 06-10-93 SRW Use _MIPS_ instead of MIPS
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*
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****/
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#ifndef _INC_MALLOC
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef _INTERNAL_IFSTRIP_
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#include <cruntime.h>
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#endif /* _INTERNAL_IFSTRIP_ */
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/*
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* Conditional macro definition for function calling type and variable type
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* qualifiers.
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*/
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#if ( (_MSC_VER >= 800) && (_M_IX86 >= 300) )
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/*
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* Definitions for MS C8-32 (386/486) compiler
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*/
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#define _CRTAPI1 __cdecl
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#define _CRTAPI2 __cdecl
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#else
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/*
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* Other compilers (e.g., MIPS)
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*/
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#define _CRTAPI1
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#define _CRTAPI2
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#endif
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#ifndef _SIZE_T_DEFINED
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typedef unsigned int size_t;
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#define _SIZE_T_DEFINED
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#endif
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/* maximum heap request that can ever be honored */
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#define _HEAP_MAXREQ 0xFFFFFFD8
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/* constants for _heapchk/_heapset/_heapwalk routines */
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#define _HEAPEMPTY (-1)
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#define _HEAPOK (-2)
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#define _HEAPBADBEGIN (-3)
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#define _HEAPBADNODE (-4)
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#define _HEAPEND (-5)
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#define _HEAPBADPTR (-6)
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#define _FREEENTRY 0
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#define _USEDENTRY 1
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#ifndef _HEAPINFO_DEFINED
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typedef struct _heapinfo {
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int * _pentry;
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size_t _size;
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int _useflag;
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} _HEAPINFO;
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#define _HEAPINFO_DEFINED
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#endif
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#ifdef _CRTHEAP_
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/* external variable declarations */
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extern unsigned int _CRTVAR1 _amblksiz;
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#endif /* _CRTHEAP_ */
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/* function prototypes */
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void * _CRTAPI1 calloc(size_t, size_t);
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void _CRTAPI1 free(void *);
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void * _CRTAPI1 malloc(size_t);
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void * _CRTAPI1 realloc(void *, size_t);
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#ifndef _POSIX_
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void * _CRTAPI1 _alloca(size_t);
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void * _CRTAPI1 _expand(void *, size_t);
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#ifdef _CRTHEAP_
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int _CRTAPI1 _heapadd(void *, size_t);
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#endif
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int _CRTAPI1 _heapchk(void);
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int _CRTAPI1 _heapmin(void);
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int _CRTAPI1 _heapset(unsigned int);
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int _CRTAPI1 _heapwalk(_HEAPINFO *);
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size_t _CRTAPI1 _msize(void *);
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#ifndef _WIN32_
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size_t _CRTAPI1 _stackavail(void);
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#endif
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#endif /* !_POSIX_ */
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#if !__STDC__
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/* Non-ANSI names for compatibility */
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#ifndef _DOSX32_
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#define alloca _alloca
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#else
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void * _CRTAPI1 alloca(size_t);
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#ifndef _WIN32_
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size_t _CRTAPI1 stackavail(void);
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#endif
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#endif
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#endif /* __STDC__*/
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#if defined(_M_MRX000) || defined(_M_PPC)
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#pragma intrinsic(_alloca)
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#endif
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#ifdef __cplusplus
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}
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#endif
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#define _INC_MALLOC
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#endif /* _INC_MALLOC */
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