1 /* malloc.h -- header file for memory routines. */ 2 3 #ifndef _INCLUDE_MALLOC_H_ 4 #define _INCLUDE_MALLOC_H_ 5 6 #include <_ansi.h> 7 #include <sys/reent.h> 8 9 #define __need_size_t 10 #include <stddef.h> 11 12 /* include any machine-specific extensions */ 13 #include <machine/malloc.h> 14 15 #ifdef __cplusplus 16 extern "C" { 17 #endif 18 19 /* This version of struct mallinfo must match the one in 20 libc/stdlib/mallocr.c. */ 21 22 struct mallinfo { 23 int arena; /* total space allocated from system */ 24 int ordblks; /* number of non-inuse chunks */ 25 int smblks; /* unused -- always zero */ 26 int hblks; /* number of mmapped regions */ 27 int hblkhd; /* total space in mmapped regions */ 28 int usmblks; /* unused -- always zero */ 29 int fsmblks; /* unused -- always zero */ 30 int uordblks; /* total allocated space */ 31 int fordblks; /* total non-inuse space */ 32 int keepcost; /* top-most, releasable (via malloc_trim) space */ 33 }; 34 35 /* The routines. */ 36 37 extern _PTR malloc _PARAMS ((size_t)); 38 #ifdef __CYGWIN__ 39 #undef _malloc_r 40 #define _malloc_r(r, s) malloc (s) 41 #else 42 extern _PTR _malloc_r _PARAMS ((struct _reent *, size_t)); 43 #endif 44 45 extern _VOID free _PARAMS ((_PTR)); 46 #ifdef __CYGWIN__ 47 #undef _free_r 48 #define _free_r(r, p) free (p) 49 #else 50 extern _VOID _free_r _PARAMS ((struct _reent *, _PTR)); 51 #endif 52 53 extern _PTR realloc _PARAMS ((_PTR, size_t)); 54 #ifdef __CYGWIN__ 55 #undef _realloc_r 56 #define _realloc_r(r, p, s) realloc (p, s) 57 #else 58 extern _PTR _realloc_r _PARAMS ((struct _reent *, _PTR, size_t)); 59 #endif 60 61 extern _PTR calloc _PARAMS ((size_t, size_t)); 62 #ifdef __CYGWIN__ 63 #undef _calloc_r 64 #define _calloc_r(r, s1, s2) calloc (s1, s2); 65 #else 66 extern _PTR _calloc_r _PARAMS ((struct _reent *, size_t, size_t)); 67 #endif 68 69 extern _PTR memalign _PARAMS ((size_t, size_t)); 70 #ifdef __CYGWIN__ 71 #undef _memalign_r 72 #define _memalign_r(r, s1, s2) memalign (s1, s2); 73 #else 74 extern _PTR _memalign_r _PARAMS ((struct _reent *, size_t, size_t)); 75 #endif 76 77 extern struct mallinfo mallinfo _PARAMS ((void)); 78 #ifdef __CYGWIN__ 79 #undef _mallinfo_r 80 #define _mallinfo_r(r) mallinfo () 81 #else 82 extern struct mallinfo _mallinfo_r _PARAMS ((struct _reent *)); 83 #endif 84 85 extern void malloc_stats _PARAMS ((void)); 86 #ifdef __CYGWIN__ 87 #undef _malloc_stats_r 88 #define _malloc_stats_r(r) malloc_stats () 89 #else 90 extern void _malloc_stats_r _PARAMS ((struct _reent *)); 91 #endif 92 93 extern int mallopt _PARAMS ((int, int)); 94 #ifdef __CYGWIN__ 95 #undef _mallopt_r 96 #define _mallopt_r(i1, i2) mallopt (i1, i2) 97 #else 98 extern int _mallopt_r _PARAMS ((struct _reent *, int, int)); 99 #endif 100 101 extern size_t malloc_usable_size _PARAMS ((_PTR)); 102 #ifdef __CYGWIN__ 103 #undef _malloc_usable_size_r 104 #define _malloc_usable_size_r(r, p) malloc_usable_size (p) 105 #else 106 extern size_t _malloc_usable_size_r _PARAMS ((struct _reent *, _PTR)); 107 #endif 108 109 /* These aren't too useful on an embedded system, but we define them 110 anyhow. */ 111 112 extern _PTR valloc _PARAMS ((size_t)); 113 #ifdef __CYGWIN__ 114 #undef _valloc_r 115 #define _valloc_r(r, s) valloc (s) 116 #else 117 extern _PTR _valloc_r _PARAMS ((struct _reent *, size_t)); 118 #endif 119 120 extern _PTR pvalloc _PARAMS ((size_t)); 121 #ifdef __CYGWIN__ 122 #undef _pvalloc_r 123 #define _pvalloc_r(r, s) pvalloc (s) 124 #else 125 extern _PTR _pvalloc_r _PARAMS ((struct _reent *, size_t)); 126 #endif 127 128 extern int malloc_trim _PARAMS ((size_t)); 129 #ifdef __CYGWIN__ 130 #undef _malloc_trim_r 131 #define _malloc_trim_r(r, s) malloc_trim (s) 132 #else 133 extern int _malloc_trim_r _PARAMS ((struct _reent *, size_t)); 134 #endif 135 136 /* A compatibility routine for an earlier version of the allocator. */ 137 138 extern _VOID mstats _PARAMS ((char *)); 139 #ifdef __CYGWIN__ 140 #undef _mstats_r 141 #define _mstats_r(r, p) mstats (p) 142 #else 143 extern _VOID _mstats_r _PARAMS ((struct _reent *, char *)); 144 #endif 145 146 /* SVID2/XPG mallopt options */ 147 148 #define M_MXFAST 1 /* UNUSED in this malloc */ 149 #define M_NLBLKS 2 /* UNUSED in this malloc */ 150 #define M_GRAIN 3 /* UNUSED in this malloc */ 151 #define M_KEEP 4 /* UNUSED in this malloc */ 152 153 /* mallopt options that actually do something */ 154 155 #define M_TRIM_THRESHOLD -1 156 #define M_TOP_PAD -2 157 #define M_MMAP_THRESHOLD -3 158 #define M_MMAP_MAX -4 159 160 #ifndef __CYGWIN__ 161 /* Some systems provide this, so do too for compatibility. */ 162 extern void cfree _PARAMS ((_PTR)); 163 #endif /* __CYGWIN__ */ 164 165 #ifdef __cplusplus 166 } 167 #endif 168 169 #endif /* _INCLUDE_MALLOC_H_ */ 170