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