170 lines
4.0 KiB
C
170 lines
4.0 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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size_t arena; /* total space allocated from system */
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size_t ordblks; /* number of non-inuse chunks */
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size_t smblks; /* unused -- always zero */
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size_t hblks; /* number of mmapped regions */
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size_t hblkhd; /* total space in mmapped regions */
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size_t usmblks; /* unused -- always zero */
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size_t fsmblks; /* unused -- always zero */
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size_t uordblks; /* total allocated space */
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size_t fordblks; /* total non-inuse space */
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size_t 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 (size_t);
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#ifdef __CYGWIN__
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#undef _malloc_r
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#define _malloc_r(r, s) malloc (s)
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#else
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extern _PTR _malloc_r (struct _reent *, size_t);
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#endif
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extern _VOID free (_PTR);
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#ifdef __CYGWIN__
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#undef _free_r
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#define _free_r(r, p) free (p)
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#else
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extern _VOID _free_r (struct _reent *, _PTR);
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#endif
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extern _PTR realloc (_PTR, size_t);
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#ifdef __CYGWIN__
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#undef _realloc_r
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#define _realloc_r(r, p, s) realloc (p, s)
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#else
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extern _PTR _realloc_r (struct _reent *, _PTR, size_t);
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#endif
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extern _PTR calloc (size_t, size_t);
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#ifdef __CYGWIN__
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#undef _calloc_r
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#define _calloc_r(r, s1, s2) calloc (s1, s2);
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#else
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extern _PTR _calloc_r (struct _reent *, size_t, size_t);
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#endif
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extern _PTR memalign (size_t, size_t);
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#ifdef __CYGWIN__
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#undef _memalign_r
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#define _memalign_r(r, s1, s2) memalign (s1, s2);
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#else
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extern _PTR _memalign_r (struct _reent *, size_t, size_t);
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#endif
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extern struct mallinfo mallinfo (void);
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#ifdef __CYGWIN__
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#undef _mallinfo_r
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#define _mallinfo_r(r) mallinfo ()
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#else
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extern struct mallinfo _mallinfo_r (struct _reent *);
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#endif
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extern void malloc_stats (void);
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#ifdef __CYGWIN__
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#undef _malloc_stats_r
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#define _malloc_stats_r(r) malloc_stats ()
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#else
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extern void _malloc_stats_r (struct _reent *);
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#endif
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extern int mallopt (int, int);
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#ifdef __CYGWIN__
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#undef _mallopt_r
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#define _mallopt_r(i1, i2) mallopt (i1, i2)
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#else
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extern int _mallopt_r (struct _reent *, int, int);
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#endif
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extern size_t malloc_usable_size (_PTR);
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#ifdef __CYGWIN__
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#undef _malloc_usable_size_r
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#define _malloc_usable_size_r(r, p) malloc_usable_size (p)
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#else
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extern size_t _malloc_usable_size_r (struct _reent *, _PTR);
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#endif
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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 (size_t);
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#ifdef __CYGWIN__
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#undef _valloc_r
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#define _valloc_r(r, s) valloc (s)
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#else
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extern _PTR _valloc_r (struct _reent *, size_t);
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#endif
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extern _PTR pvalloc (size_t);
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#ifdef __CYGWIN__
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#undef _pvalloc_r
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#define _pvalloc_r(r, s) pvalloc (s)
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#else
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extern _PTR _pvalloc_r (struct _reent *, size_t);
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#endif
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extern int malloc_trim (size_t);
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#ifdef __CYGWIN__
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#undef _malloc_trim_r
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#define _malloc_trim_r(r, s) malloc_trim (s)
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#else
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extern int _malloc_trim_r (struct _reent *, size_t);
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#endif
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/* A compatibility routine for an earlier version of the allocator. */
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extern _VOID mstats (char *);
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#ifdef __CYGWIN__
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#undef _mstats_r
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#define _mstats_r(r, p) mstats (p)
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#else
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extern _VOID _mstats_r (struct _reent *, char *);
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#endif
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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 (_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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