282 lines
9.6 KiB
C
282 lines
9.6 KiB
C
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/***
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*malloc.h - declarations and definitions for memory allocation functions
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*
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* Copyright (c) 1985-2001, 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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* [Public]
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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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* 04-06-93 SKS Replace _CRTAPI1/2 with __cdecl, _CRTVAR1 with nothing
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* 04-07-93 SKS Add _CRTIMP keyword for CRT DLL model
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* Use link-time aliases for old names, not #define's
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* 04-20-93 SKS _alloca is a compiler intrinsic so alloca must be
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* #define-d, not aliased as link time using OLDNAMES.LIB.
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* 09-27-93 GJF Merged NT SDK and Cuda versions. Also, changed the
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* value of _HEAP_MAXREQ to be more useful (smaller
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* value to guarantee page-rounding will not overflow).
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* 10-13-93 GJF Replaced _MIPS_ with _M_MRX000.
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* 12-13-93 SKS Add _heapused().
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* 04-12-94 GJF Special definition for _amblksiz for _DLL. Also,
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* conditionally include win32s.h for DLL_FOR_WIN32S.
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* 05-03-94 GJF Made special definition of _amblksiz for _DLL also
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* conditional on _M_IX86.
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* 10-02-94 BWT Add PPC support.
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* 11-03-94 GJF Ensure 8 byte alignment.
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* 02-11-95 CFW Add _CRTBLD to avoid users getting wrong headers.
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* 02-14-95 CFW Clean up Mac merge.
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* 05-22-95 GJF Updated _HEAP_MAXREQ.
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* 05-24-95 CFW Add heap hook.
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* 12-14-95 JWM Add "#pragma once".
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* 03-07-96 GJF Added prototypes for small-block heap's get/set
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* threshold functions.
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* 02-04-97 GJF Cleaned out obsolete support for Win32s, _CRTAPI* and
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* _NTSDK.
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* 08-13-97 GJF Strip __p__amblksiz prototype from release version.
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* 09-30-97 JWM Restored not-so-obsolete _CRTAPI1 support.
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* 10-07-97 RDL Added IA64.
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* 12-15-98 GJF Changes for 64-bit size_t.
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* 05-13-99 PML Remove _CRTAPI1
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* 05-17-99 PML Remove all Macintosh support.
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* 10-06-99 PML Add _W64 modifier to types which are 32 bits in Win32,
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* 64 bits in Win64.
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* 11-08-99 GB Add _aligned_malloc(), _aligned_realloc, _aligned_free()
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* _aligned_offset_malloc() and _aligned_offset_realloc().
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* 12-10-99 GB Add _resetstkoflw().
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* 12-16-99 GB Changed HEAP_MAXREQ to 0xFFFFFFFFFFFFFFE0 for Win64
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* 01-07-00 GB Fixed macro _mm_free.
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* 12-08-00 PML Make _resetstkoflw() available to POSIX build.
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* 04-17-01 PML _resetstkoflw() now returns an int success code.
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*
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****/
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#if _MSC_VER > 1000 /*IFSTRIP=IGN*/
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#pragma once
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#endif
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#ifndef _INC_MALLOC
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#define _INC_MALLOC
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#if !defined(_WIN32)
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#error ERROR: Only Win32 target supported!
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#endif
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#ifndef _CRTBLD
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/* This version of the header files is NOT for user programs.
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* It is intended for use when building the C runtimes ONLY.
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* The version intended for public use will not have this message.
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*/
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#error ERROR: Use of C runtime library internal header file.
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#endif /* _CRTBLD */
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#ifdef _MSC_VER
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/*
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* Currently, all MS C compilers for Win32 platforms default to 8 byte
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* alignment.
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*/
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#pragma pack(push,8)
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#endif /* _MSC_VER */
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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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#if !defined(_W64)
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#if !defined(__midl) && (defined(_X86_) || defined(_M_IX86)) && _MSC_VER >= 1300 /*IFSTRIP=IGN*/
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#define _W64 __w64
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#else
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#define _W64
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#endif
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#endif
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/* Define _CRTIMP */
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#ifndef _CRTIMP
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#ifdef CRTDLL
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#define _CRTIMP __declspec(dllexport)
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#else /* ndef CRTDLL */
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#ifdef _DLL
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#define _CRTIMP __declspec(dllimport)
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#else /* ndef _DLL */
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#define _CRTIMP
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#endif /* _DLL */
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#endif /* CRTDLL */
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#endif /* _CRTIMP */
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/* Define __cdecl for non-Microsoft compilers */
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#if ( !defined(_MSC_VER) && !defined(__cdecl) )
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#define __cdecl
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#endif
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#ifndef _SIZE_T_DEFINED
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#ifdef _WIN64
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typedef unsigned __int64 size_t;
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#else
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typedef _W64 unsigned int size_t;
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#endif
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#define _SIZE_T_DEFINED
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#endif
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/* Maximum heap request the heap manager will attempt */
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#ifdef _WIN64
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#define _HEAP_MAXREQ 0xFFFFFFFFFFFFFFE0
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#else
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#define _HEAP_MAXREQ 0xFFFFFFE0
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#endif
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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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/* External variable declarations */
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#ifndef _INTERNAL_IFSTRIP_
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#if defined(_DLL) && defined(_M_IX86)
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/* Retained for compatibility with VC++ 5.0 and earlier versions */
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_CRTIMP unsigned int * __cdecl __p__amblksiz(void);
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#endif
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#endif /* _INTERNAL_IFSTRIP_ */
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extern unsigned int _amblksiz;
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#define _mm_free(a) _aligned_free(a)
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#define _mm_malloc(a, b) _aligned_malloc(a, b)
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/* Function prototypes */
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_CRTIMP void * __cdecl calloc(size_t, size_t);
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_CRTIMP void __cdecl free(void *);
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_CRTIMP void * __cdecl malloc(size_t);
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_CRTIMP void * __cdecl realloc(void *, size_t);
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_CRTIMP void __cdecl _aligned_free(void *);
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_CRTIMP void * __cdecl _aligned_malloc(size_t, size_t);
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_CRTIMP void * __cdecl _aligned_offset_malloc(size_t, size_t, size_t);
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_CRTIMP void * __cdecl _aligned_realloc(void *, size_t, size_t);
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_CRTIMP void * __cdecl _aligned_offset_realloc(void *, size_t, size_t, size_t);
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_CRTIMP int __cdecl _resetstkoflw (void);
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#ifndef _POSIX_
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void * __cdecl _alloca(size_t);
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_CRTIMP void * __cdecl _expand(void *, size_t);
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_CRTIMP size_t __cdecl _get_sbh_threshold(void);
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_CRTIMP int __cdecl _set_sbh_threshold(size_t);
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_CRTIMP int __cdecl _heapadd(void *, size_t);
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_CRTIMP int __cdecl _heapchk(void);
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_CRTIMP int __cdecl _heapmin(void);
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_CRTIMP int __cdecl _heapset(unsigned int);
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_CRTIMP int __cdecl _heapwalk(_HEAPINFO *);
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_CRTIMP size_t __cdecl _heapused(size_t *, size_t *);
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_CRTIMP size_t __cdecl _msize(void *);
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#if !__STDC__
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/* Non-ANSI names for compatibility */
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#define alloca _alloca
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#endif /* __STDC__*/
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#if defined(_M_MRX000) || defined(_M_PPC) || defined(_M_ALPHA)
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#pragma intrinsic(_alloca)
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#endif
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#endif /* _POSIX_ */
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#ifdef HEAPHOOK
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#ifndef _HEAPHOOK_DEFINED
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/* hook function type */
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typedef int (__cdecl * _HEAPHOOK)(int, size_t, void *, void **);
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#define _HEAPHOOK_DEFINED
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#endif /* _HEAPHOOK_DEFINED */
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/* set hook function */
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_CRTIMP _HEAPHOOK __cdecl _setheaphook(_HEAPHOOK);
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/* hook function must handle these types */
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#define _HEAP_MALLOC 1
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#define _HEAP_CALLOC 2
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#define _HEAP_FREE 3
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#define _HEAP_REALLOC 4
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#define _HEAP_MSIZE 5
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#define _HEAP_EXPAND 6
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#endif /* HEAPHOOK */
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#ifdef __cplusplus
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}
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#endif
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#ifdef _MSC_VER
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#pragma pack(pop)
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#endif /* _MSC_VER */
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#endif /* _INC_MALLOC */
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