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/* malloc.h -- header file for memory routines. */
#ifndef _INCLUDE_MALLOC_H_
#define _INCLUDE_MALLOC_H_
#include <_ansi.h>
#include <sys/reent.h>
#define __need_size_t
#include <stddef.h>
/* include any machine-specific extensions */
#include <machine/malloc.h>
#ifdef __cplusplus
extern "C" {
#endif
/* This version of struct mallinfo must match the one in
libc/stdlib/mallocr.c. */
struct mallinfo {
int arena; /* total space allocated from system */
int ordblks; /* number of non-inuse chunks */
int smblks; /* unused -- always zero */
int hblks; /* number of mmapped regions */
int hblkhd; /* total space in mmapped regions */
int usmblks; /* unused -- always zero */
int fsmblks; /* unused -- always zero */
int uordblks; /* total allocated space */
int fordblks; /* total non-inuse space */
int keepcost; /* top-most, releasable (via malloc_trim) space */
};
/* The routines. */
extern _PTR malloc _PARAMS ((size_t));
extern _PTR _malloc_r _PARAMS ((struct _reent *, size_t));
extern _VOID free _PARAMS ((_PTR));
extern _VOID _free_r _PARAMS ((struct _reent *, _PTR));
extern _PTR realloc _PARAMS ((_PTR, size_t));
extern _PTR _realloc_r _PARAMS ((struct _reent *, _PTR, size_t));
extern _PTR calloc _PARAMS ((size_t, size_t));
extern _PTR _calloc_r _PARAMS ((struct _reent *, size_t, size_t));
extern _PTR memalign _PARAMS ((size_t, size_t));
extern _PTR _memalign_r _PARAMS ((struct _reent *, size_t, size_t));
extern struct mallinfo mallinfo _PARAMS ((void));
extern struct mallinfo _mallinfo_r _PARAMS ((struct _reent *));
extern void malloc_stats _PARAMS ((void));
extern void _malloc_stats_r _PARAMS ((struct _reent *));
extern int mallopt _PARAMS ((int, int));
extern int _mallopt_r _PARAMS ((struct _reent *, int, int));
extern size_t malloc_usable_size _PARAMS ((_PTR));
extern size_t _malloc_usable_size_r _PARAMS ((struct _reent *, _PTR));
/* These aren't too useful on an embedded system, but we define them
anyhow. */
extern _PTR valloc _PARAMS ((size_t));
extern _PTR _valloc_r _PARAMS ((struct _reent *, size_t));
extern _PTR pvalloc _PARAMS ((size_t));
extern _PTR _pvalloc_r _PARAMS ((struct _reent *, size_t));
extern int malloc_trim _PARAMS ((size_t));
extern int _malloc_trim_r _PARAMS ((struct _reent *, size_t));
/* A compatibility routine for an earlier version of the allocator. */
extern _VOID mstats _PARAMS ((char *));
extern _VOID _mstats_r _PARAMS ((struct _reent *, char *));
/* SVID2/XPG mallopt options */
#define M_MXFAST 1 /* UNUSED in this malloc */
#define M_NLBLKS 2 /* UNUSED in this malloc */
#define M_GRAIN 3 /* UNUSED in this malloc */
#define M_KEEP 4 /* UNUSED in this malloc */
/* mallopt options that actually do something */
#define M_TRIM_THRESHOLD -1
#define M_TOP_PAD -2
#define M_MMAP_THRESHOLD -3
#define M_MMAP_MAX -4
#ifndef __CYGWIN__
/* Some systems provide this, so do too for compatibility. */
extern void cfree _PARAMS ((_PTR));
#endif /* __CYGWIN__ */
#ifdef __cplusplus
}
#endif
#endif /* _INCLUDE_MALLOC_H_ */
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