88a820dbcc
(_USEDENTRY,_FREEENTRY): Add defines. Add comment on platform support for _heap* functions. (_get_sbh_threshold): Add prototype. (_set_sbh_threshold): Likewise. (_expand): Likewise.
88 lines
1.9 KiB
C
88 lines
1.9 KiB
C
/*
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* malloc.h
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*
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* Support for programs which want to use malloc.h to get memory management
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* functions. Unless you absolutely need some of these functions and they are
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* not in the ANSI headers you should use the ANSI standard header files
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* instead.
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*
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* This file is part of the Mingw32 package.
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*
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* Contributors:
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* Created by Colin Peters <colin@bird.fu.is.saga-u.ac.jp>
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*
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* THIS SOFTWARE IS NOT COPYRIGHTED
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*
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* This source code is offered for use in the public domain. You may
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* use, modify or distribute it freely.
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*
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* This code is distributed in the hope that it will be useful but
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* WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
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* DISCLAIMED. This includes but is not limited to warranties of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* $Revision$
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* $Author$
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* $Date$
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*
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*/
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#ifndef __STRICT_ANSI__
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#ifndef _MALLOC_H_
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#define _MALLOC_H_
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/* All the headers include this file. */
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#include <_mingw.h>
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#include <stdlib.h>
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#ifndef RC_INVOKED
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/*
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* The structure used to walk through the heap with _heapwalk.
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*/
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typedef struct _heapinfo
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{
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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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/* Values for _heapinfo.useflag */
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#define _USEDENTRY 0
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#define _FREEENTRY 1
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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The _heap* memory allocation functions are supported on NT
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but not W9x. On latter, they always set errno to ENOSYS.
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*/
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int _heapwalk (_HEAPINFO*);
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#ifndef _NO_OLDNAMES
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int heapwalk (_HEAPINFO*);
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#endif /* Not _NO_OLDNAMES */
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int _heapchk (void); /* Verify heap integrety. */
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int _heapmin (void); /* Return unused heap to the OS. */
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int _heapset (unsigned int);
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size_t _msize (void*);
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size_t _get_sbh_threshold (void);
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int _set_sbh_threshold (size_t);
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void * _expand (void*, size_t);
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#ifdef __cplusplus
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}
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#endif
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#endif /* RC_INVOKED */
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#endif /* Not _MALLOC_H_ */
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#endif /* Not __STRICT_ANSI__ */
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