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