/*

 * malloc.h

 * This file has no copyright assigned and is placed in the Public Domain.

 * This file is a part of the mingw-runtime package.

 * No warranty is given; refer to the file DISCLAIMER within the package.

 *

 * Support for programs which want to use malloc.h to get memory management

 * functions. Unless you absolutely need some of these functions and they are

 * not in the ANSI headers you should use the ANSI standard header files

 * instead.

 *

 */

#ifndef _MALLOC_H_

#define _MALLOC_H_

/* All the headers include this file. */

#include <_mingw.h>

#include <stdlib.h>

#ifndef RC_INVOKED

/*

 * The structure used to walk through the heap with _heapwalk.

 */

typedef	struct _heapinfo

{

	int*	_pentry;

	size_t	_size;

	int	_useflag;

} _HEAPINFO;

/* Values for _heapinfo.useflag */

#define _FREEENTRY 0

#define _USEDENTRY 1

/* Return codes for _heapwalk()  */

#define _HEAPEMPTY	(-1)

#define _HEAPOK		(-2)

#define _HEAPBADBEGIN	(-3)

#define _HEAPBADNODE	(-4)

#define _HEAPEND	(-5)

#define _HEAPBADPTR	(-6)

/* maximum size of a user request for memory */

#define _HEAP_MAXREQ  0xFFFFFFE0

#ifdef	__cplusplus

extern "C" {

#endif

/*

   The _heap* memory allocation functions are supported on NT

   but not W9x. On latter, they always set errno to ENOSYS.

*/

_CRTIMP int __cdecl __MINGW_NOTHROW _heapwalk (_HEAPINFO*);

#ifdef __GNUC__

#define _alloca(x) __builtin_alloca((x))

#endif

#ifndef	_NO_OLDNAMES

_CRTIMP int __cdecl __MINGW_NOTHROW heapwalk (_HEAPINFO*);

#ifdef __GNUC__

#define alloca(x) __builtin_alloca((x))

#endif

#endif	/* Not _NO_OLDNAMES */

_CRTIMP int __cdecl __MINGW_NOTHROW _heapchk (void);	/* Verify heap integrety. */

_CRTIMP int __cdecl __MINGW_NOTHROW _heapmin (void);	/* Return unused heap to the OS. */

_CRTIMP int __cdecl __MINGW_NOTHROW _heapset (unsigned int);

_CRTIMP size_t __cdecl __MINGW_NOTHROW _msize (void*);

_CRTIMP size_t __cdecl __MINGW_NOTHROW _get_sbh_threshold (void); 

_CRTIMP int __cdecl __MINGW_NOTHROW _set_sbh_threshold (size_t);

_CRTIMP void* __cdecl __MINGW_NOTHROW _expand (void*, size_t); 

/* These require msvcr70.dll or higher. */ 

#if __MSVCRT_VERSION__ >= 0x0700

_CRTIMP void * __cdecl __MINGW_NOTHROW _aligned_offset_malloc(size_t, size_t, size_t);

_CRTIMP void * __cdecl __MINGW_NOTHROW _aligned_offset_realloc(void*, size_t, size_t, size_t);

_CRTIMP void * __cdecl __MINGW_NOTHROW _aligned_offset_recalloc(void*, size_t, size_t, size_t, size_t);

_CRTIMP void * __cdecl __MINGW_NOTHROW _aligned_malloc (size_t, size_t);

_CRTIMP void * __cdecl __MINGW_NOTHROW _aligned_realloc (void*, size_t, size_t);

_CRTIMP void* __cdecl __MINGW_NOTHROW _aligned_recalloc(void*, size_t, size_t, size_t);

_CRTIMP void __cdecl __MINGW_NOTHROW _aligned_free (void*);

#endif /* __MSVCRT_VERSION__ >= 0x0700 */

/* These require libmingwex.a. */ 

void * __cdecl __MINGW_NOTHROW __mingw_aligned_offset_malloc (size_t, size_t, size_t);

void * __cdecl __MINGW_NOTHROW __mingw_aligned_offset_realloc (void*, size_t, size_t, size_t);

void * __cdecl __MINGW_NOTHROW __mingw_aligned_malloc (size_t, size_t);

void * __cdecl __MINGW_NOTHROW __mingw_aligned_realloc (void*, size_t, size_t);

void __cdecl __MINGW_NOTHROW __mingw_aligned_free (void*);

#ifdef __cplusplus

}

#endif

#endif	/* RC_INVOKED */

#endif /* Not _MALLOC_H_ */