1 | /* This header file provides the reentrancy. */ |
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2 | |
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3 | /* WARNING: All identifiers here must begin with an underscore. This file is |
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4 | included by stdio.h and others and we therefore must only use identifiers |
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5 | in the namespace allotted to us. */ |
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6 | |
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7 | #ifndef _SYS_REENT_H_ |
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8 | #ifdef __cplusplus |
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9 | extern "C" { |
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10 | #endif |
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11 | #define _SYS_REENT_H_ |
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12 | |
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13 | #include <_ansi.h> |
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14 | #include <stddef.h> |
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15 | #include <sys/_types.h> |
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16 | |
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17 | #define _NULL 0 |
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18 | |
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19 | #ifndef __Long |
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20 | #if __LONG_MAX__ == 2147483647L |
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21 | #define __Long long |
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22 | typedef unsigned __Long __ULong; |
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23 | #elif __INT_MAX__ == 2147483647 |
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24 | #define __Long int |
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25 | typedef unsigned __Long __ULong; |
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26 | #endif |
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27 | #endif |
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28 | |
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29 | #if !defined( __Long) |
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30 | #include <sys/types.h> |
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31 | #endif |
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32 | |
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33 | #ifndef __Long |
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34 | #define __Long __int32_t |
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35 | typedef __uint32_t __ULong; |
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36 | #endif |
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37 | |
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38 | struct _reent; |
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39 | |
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40 | struct __locale_t; |
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41 | |
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42 | /* |
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43 | * If _REENT_SMALL is defined, we make struct _reent as small as possible, |
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44 | * by having nearly everything possible allocated at first use. |
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45 | */ |
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46 | |
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47 | struct _Bigint |
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48 | { |
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49 | struct _Bigint *_next; |
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50 | int _k, _maxwds, _sign, _wds; |
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51 | __ULong _x[1]; |
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52 | }; |
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53 | |
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54 | /* needed by reentrant structure */ |
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55 | struct __tm |
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56 | { |
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57 | int __tm_sec; |
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58 | int __tm_min; |
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59 | int __tm_hour; |
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60 | int __tm_mday; |
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61 | int __tm_mon; |
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62 | int __tm_year; |
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63 | int __tm_wday; |
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64 | int __tm_yday; |
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65 | int __tm_isdst; |
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66 | }; |
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67 | |
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68 | /* |
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69 | * atexit() support. |
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70 | */ |
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71 | |
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72 | #define _ATEXIT_SIZE 32 /* must be at least 32 to guarantee ANSI conformance */ |
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73 | |
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74 | struct _on_exit_args { |
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75 | void * _fnargs[_ATEXIT_SIZE]; /* user fn args */ |
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76 | void * _dso_handle[_ATEXIT_SIZE]; |
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77 | /* Bitmask is set if user function takes arguments. */ |
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78 | __ULong _fntypes; /* type of exit routine - |
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79 | Must have at least _ATEXIT_SIZE bits */ |
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80 | /* Bitmask is set if function was registered via __cxa_atexit. */ |
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81 | __ULong _is_cxa; |
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82 | }; |
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83 | |
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84 | #ifdef _REENT_SMALL |
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85 | struct _atexit { |
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86 | struct _atexit *_next; /* next in list */ |
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87 | int _ind; /* next index in this table */ |
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88 | void (*_fns[_ATEXIT_SIZE])(void); /* the table itself */ |
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89 | struct _on_exit_args * _on_exit_args_ptr; |
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90 | }; |
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91 | # define _ATEXIT_INIT {_NULL, 0, {_NULL}, _NULL} |
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92 | #else |
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93 | struct _atexit { |
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94 | struct _atexit *_next; /* next in list */ |
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95 | int _ind; /* next index in this table */ |
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96 | /* Some entries may already have been called, and will be NULL. */ |
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97 | void (*_fns[_ATEXIT_SIZE])(void); /* the table itself */ |
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98 | struct _on_exit_args _on_exit_args; |
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99 | }; |
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100 | # define _ATEXIT_INIT {_NULL, 0, {_NULL}, {{_NULL}, {_NULL}, 0, 0}} |
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101 | #endif |
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102 | |
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103 | #ifdef _REENT_GLOBAL_ATEXIT |
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104 | # define _REENT_INIT_ATEXIT |
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105 | #else |
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106 | # define _REENT_INIT_ATEXIT \ |
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107 | _NULL, _ATEXIT_INIT, |
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108 | #endif |
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109 | |
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110 | /* |
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111 | * Stdio buffers. |
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112 | * |
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113 | * This and __FILE are defined here because we need them for struct _reent, |
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114 | * but we don't want stdio.h included when stdlib.h is. |
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115 | */ |
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116 | |
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117 | struct __sbuf { |
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118 | unsigned char *_base; |
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119 | int _size; |
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120 | }; |
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121 | |
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122 | /* |
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123 | * Stdio state variables. |
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124 | * |
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125 | * The following always hold: |
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126 | * |
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127 | * if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR), |
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128 | * _lbfsize is -_bf._size, else _lbfsize is 0 |
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129 | * if _flags&__SRD, _w is 0 |
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130 | * if _flags&__SWR, _r is 0 |
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131 | * |
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132 | * This ensures that the getc and putc macros (or inline functions) never |
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133 | * try to write or read from a file that is in `read' or `write' mode. |
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134 | * (Moreover, they can, and do, automatically switch from read mode to |
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135 | * write mode, and back, on "r+" and "w+" files.) |
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136 | * |
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137 | * _lbfsize is used only to make the inline line-buffered output stream |
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138 | * code as compact as possible. |
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139 | * |
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140 | * _ub, _up, and _ur are used when ungetc() pushes back more characters |
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141 | * than fit in the current _bf, or when ungetc() pushes back a character |
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142 | * that does not match the previous one in _bf. When this happens, |
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143 | * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff |
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144 | * _ub._base!=NULL) and _up and _ur save the current values of _p and _r. |
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145 | */ |
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146 | |
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147 | #ifdef _REENT_SMALL |
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148 | /* |
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149 | * struct __sFILE_fake is the start of a struct __sFILE, with only the |
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150 | * minimal fields allocated. In __sinit() we really allocate the 3 |
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151 | * standard streams, etc., and point away from this fake. |
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152 | */ |
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153 | struct __sFILE_fake { |
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154 | unsigned char *_p; /* current position in (some) buffer */ |
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155 | int _r; /* read space left for getc() */ |
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156 | int _w; /* write space left for putc() */ |
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157 | short _flags; /* flags, below; this FILE is free if 0 */ |
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158 | short _file; /* fileno, if Unix descriptor, else -1 */ |
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159 | struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */ |
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160 | int _lbfsize; /* 0 or -_bf._size, for inline putc */ |
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161 | |
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162 | struct _reent *_data; |
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163 | }; |
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164 | |
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165 | /* Following is needed both in libc/stdio and libc/stdlib so we put it |
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166 | * here instead of libc/stdio/local.h where it was previously. */ |
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167 | |
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168 | extern void __sinit (struct _reent *); |
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169 | |
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170 | # define _REENT_SMALL_CHECK_INIT(ptr) \ |
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171 | do \ |
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172 | { \ |
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173 | if ((ptr) && !(ptr)->__sdidinit) \ |
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174 | __sinit (ptr); \ |
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175 | } \ |
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176 | while (0) |
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177 | #else |
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178 | # define _REENT_SMALL_CHECK_INIT(ptr) /* nothing */ |
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179 | #endif |
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180 | |
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181 | struct __sFILE { |
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182 | unsigned char *_p; /* current position in (some) buffer */ |
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183 | int _r; /* read space left for getc() */ |
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184 | int _w; /* write space left for putc() */ |
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185 | short _flags; /* flags, below; this FILE is free if 0 */ |
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186 | short _file; /* fileno, if Unix descriptor, else -1 */ |
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187 | struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */ |
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188 | int _lbfsize; /* 0 or -_bf._size, for inline putc */ |
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189 | |
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190 | #ifdef _REENT_SMALL |
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191 | struct _reent *_data; |
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192 | #endif |
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193 | |
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194 | /* operations */ |
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195 | void * _cookie; /* cookie passed to io functions */ |
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196 | |
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197 | _READ_WRITE_RETURN_TYPE (*_read) (struct _reent *, void *, |
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198 | char *, _READ_WRITE_BUFSIZE_TYPE); |
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199 | _READ_WRITE_RETURN_TYPE (*_write) (struct _reent *, void *, |
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200 | const char *, |
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201 | _READ_WRITE_BUFSIZE_TYPE); |
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202 | _fpos_t (*_seek) (struct _reent *, void *, _fpos_t, int); |
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203 | int (*_close) (struct _reent *, void *); |
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204 | |
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205 | /* separate buffer for long sequences of ungetc() */ |
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206 | struct __sbuf _ub; /* ungetc buffer */ |
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207 | unsigned char *_up; /* saved _p when _p is doing ungetc data */ |
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208 | int _ur; /* saved _r when _r is counting ungetc data */ |
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209 | |
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210 | /* tricks to meet minimum requirements even when malloc() fails */ |
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211 | unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */ |
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212 | unsigned char _nbuf[1]; /* guarantee a getc() buffer */ |
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213 | |
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214 | /* separate buffer for fgetline() when line crosses buffer boundary */ |
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215 | struct __sbuf _lb; /* buffer for fgetline() */ |
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216 | |
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217 | /* Unix stdio files get aligned to block boundaries on fseek() */ |
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218 | int _blksize; /* stat.st_blksize (may be != _bf._size) */ |
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219 | _off_t _offset; /* current lseek offset */ |
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220 | |
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221 | #ifndef _REENT_SMALL |
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222 | struct _reent *_data; /* Here for binary compatibility? Remove? */ |
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223 | #endif |
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224 | |
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225 | #ifndef __SINGLE_THREAD__ |
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226 | _flock_t _lock; /* for thread-safety locking */ |
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227 | #endif |
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228 | _mbstate_t _mbstate; /* for wide char stdio functions. */ |
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229 | int _flags2; /* for future use */ |
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230 | }; |
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231 | |
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232 | #ifdef __CUSTOM_FILE_IO__ |
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233 | |
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234 | /* Get custom _FILE definition. */ |
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235 | #include <sys/custom_file.h> |
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236 | |
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237 | #else /* !__CUSTOM_FILE_IO__ */ |
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238 | #ifdef __LARGE64_FILES |
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239 | struct __sFILE64 { |
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240 | unsigned char *_p; /* current position in (some) buffer */ |
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241 | int _r; /* read space left for getc() */ |
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242 | int _w; /* write space left for putc() */ |
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243 | short _flags; /* flags, below; this FILE is free if 0 */ |
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244 | short _file; /* fileno, if Unix descriptor, else -1 */ |
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245 | struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */ |
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246 | int _lbfsize; /* 0 or -_bf._size, for inline putc */ |
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247 | |
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248 | struct _reent *_data; |
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249 | |
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250 | /* operations */ |
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251 | void * _cookie; /* cookie passed to io functions */ |
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252 | |
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253 | _READ_WRITE_RETURN_TYPE (*_read) (struct _reent *, void *, |
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254 | char *, _READ_WRITE_BUFSIZE_TYPE); |
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255 | _READ_WRITE_RETURN_TYPE (*_write) (struct _reent *, void *, |
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256 | const char *, |
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257 | _READ_WRITE_BUFSIZE_TYPE); |
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258 | _fpos_t (*_seek) (struct _reent *, void *, _fpos_t, int); |
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259 | int (*_close) (struct _reent *, void *); |
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260 | |
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261 | /* separate buffer for long sequences of ungetc() */ |
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262 | struct __sbuf _ub; /* ungetc buffer */ |
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263 | unsigned char *_up; /* saved _p when _p is doing ungetc data */ |
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264 | int _ur; /* saved _r when _r is counting ungetc data */ |
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265 | |
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266 | /* tricks to meet minimum requirements even when malloc() fails */ |
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267 | unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */ |
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268 | unsigned char _nbuf[1]; /* guarantee a getc() buffer */ |
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269 | |
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270 | /* separate buffer for fgetline() when line crosses buffer boundary */ |
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271 | struct __sbuf _lb; /* buffer for fgetline() */ |
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272 | |
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273 | /* Unix stdio files get aligned to block boundaries on fseek() */ |
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274 | int _blksize; /* stat.st_blksize (may be != _bf._size) */ |
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275 | int _flags2; /* for future use */ |
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276 | |
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277 | _off64_t _offset; /* current lseek offset */ |
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278 | _fpos64_t (*_seek64) (struct _reent *, void *, _fpos64_t, int); |
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279 | |
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280 | #ifndef __SINGLE_THREAD__ |
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281 | _flock_t _lock; /* for thread-safety locking */ |
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282 | #endif |
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283 | _mbstate_t _mbstate; /* for wide char stdio functions. */ |
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284 | }; |
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285 | typedef struct __sFILE64 __FILE; |
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286 | #else |
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287 | typedef struct __sFILE __FILE; |
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288 | #endif /* __LARGE64_FILES */ |
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289 | #endif /* !__CUSTOM_FILE_IO__ */ |
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290 | |
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291 | struct _glue |
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292 | { |
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293 | struct _glue *_next; |
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294 | int _niobs; |
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295 | __FILE *_iobs; |
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296 | }; |
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297 | |
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298 | /* |
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299 | * rand48 family support |
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300 | * |
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301 | * Copyright (c) 1993 Martin Birgmeier |
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302 | * All rights reserved. |
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303 | * |
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304 | * You may redistribute unmodified or modified versions of this source |
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305 | * code provided that the above copyright notice and this and the |
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306 | * following conditions are retained. |
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307 | * |
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308 | * This software is provided ``as is'', and comes with no warranties |
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309 | * of any kind. I shall in no event be liable for anything that happens |
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310 | * to anyone/anything when using this software. |
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311 | */ |
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312 | #define _RAND48_SEED_0 (0x330e) |
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313 | #define _RAND48_SEED_1 (0xabcd) |
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314 | #define _RAND48_SEED_2 (0x1234) |
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315 | #define _RAND48_MULT_0 (0xe66d) |
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316 | #define _RAND48_MULT_1 (0xdeec) |
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317 | #define _RAND48_MULT_2 (0x0005) |
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318 | #define _RAND48_ADD (0x000b) |
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319 | struct _rand48 { |
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320 | unsigned short _seed[3]; |
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321 | unsigned short _mult[3]; |
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322 | unsigned short _add; |
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323 | #ifdef _REENT_SMALL |
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324 | /* Put this in here as well, for good luck. */ |
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325 | __extension__ unsigned long long _rand_next; |
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326 | #endif |
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327 | }; |
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328 | |
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329 | /* How big the some arrays are. */ |
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330 | #define _REENT_EMERGENCY_SIZE 25 |
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331 | #define _REENT_ASCTIME_SIZE 26 |
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332 | #define _REENT_SIGNAL_SIZE 24 |
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333 | |
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334 | /* |
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335 | * struct _reent |
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336 | * |
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337 | * This structure contains *all* globals needed by the library. |
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338 | * It's raison d'etre is to facilitate threads by making all library routines |
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339 | * reentrant. IE: All state information is contained here. |
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340 | */ |
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341 | |
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342 | #ifdef _REENT_SMALL |
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343 | |
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344 | struct _mprec |
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345 | { |
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346 | /* used by mprec routines */ |
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347 | struct _Bigint *_result; |
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348 | int _result_k; |
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349 | struct _Bigint *_p5s; |
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350 | struct _Bigint **_freelist; |
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351 | }; |
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352 | |
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353 | |
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354 | struct _misc_reent |
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355 | { |
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356 | /* miscellaneous reentrant data */ |
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357 | char *_strtok_last; |
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358 | _mbstate_t _mblen_state; |
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359 | _mbstate_t _wctomb_state; |
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360 | _mbstate_t _mbtowc_state; |
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361 | char _l64a_buf[8]; |
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362 | int _getdate_err; |
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363 | _mbstate_t _mbrlen_state; |
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364 | _mbstate_t _mbrtowc_state; |
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365 | _mbstate_t _mbsrtowcs_state; |
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366 | _mbstate_t _wcrtomb_state; |
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367 | _mbstate_t _wcsrtombs_state; |
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368 | }; |
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369 | |
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370 | /* This version of _reent is laid out with "int"s in pairs, to help |
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371 | * ports with 16-bit int's but 32-bit pointers, align nicely. */ |
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372 | struct _reent |
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373 | { |
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374 | /* As an exception to the above put _errno first for binary |
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375 | compatibility with non _REENT_SMALL targets. */ |
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376 | int _errno; /* local copy of errno */ |
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377 | |
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378 | /* FILE is a big struct and may change over time. To try to achieve binary |
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379 | compatibility with future versions, put stdin,stdout,stderr here. |
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380 | These are pointers into member __sf defined below. */ |
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381 | __FILE *_stdin, *_stdout, *_stderr; /* XXX */ |
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382 | |
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383 | int _inc; /* used by tmpnam */ |
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384 | |
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385 | char *_emergency; |
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386 | |
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387 | int __sdidinit; /* 1 means stdio has been init'd */ |
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388 | |
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389 | int _unspecified_locale_info; /* unused, reserved for locale stuff */ |
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390 | struct __locale_t *_locale;/* per-thread locale */ |
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391 | |
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392 | struct _mprec *_mp; |
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393 | |
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394 | void (*__cleanup) (struct _reent *); |
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395 | |
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396 | int _gamma_signgam; |
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397 | |
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398 | /* used by some fp conversion routines */ |
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399 | int _cvtlen; /* should be size_t */ |
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400 | char *_cvtbuf; |
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401 | |
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402 | struct _rand48 *_r48; |
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403 | struct __tm *_localtime_buf; |
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404 | char *_asctime_buf; |
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405 | |
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406 | /* signal info */ |
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407 | void (**(_sig_func))(int); |
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408 | |
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409 | # ifndef _REENT_GLOBAL_ATEXIT |
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410 | /* atexit stuff */ |
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411 | struct _atexit *_atexit; |
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412 | struct _atexit _atexit0; |
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413 | # endif |
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414 | |
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415 | struct _glue __sglue; /* root of glue chain */ |
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416 | __FILE *__sf; /* file descriptors */ |
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417 | struct _misc_reent *_misc; /* strtok, multibyte states */ |
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418 | char *_signal_buf; /* strsignal */ |
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419 | }; |
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420 | |
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421 | extern const struct __sFILE_fake __sf_fake_stdin; |
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422 | extern const struct __sFILE_fake __sf_fake_stdout; |
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423 | extern const struct __sFILE_fake __sf_fake_stderr; |
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424 | |
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425 | # define _REENT_INIT(var) \ |
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426 | { 0, \ |
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427 | (__FILE *)&__sf_fake_stdin, \ |
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428 | (__FILE *)&__sf_fake_stdout, \ |
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429 | (__FILE *)&__sf_fake_stderr, \ |
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430 | 0, \ |
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431 | _NULL, \ |
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432 | 0, \ |
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433 | 0, \ |
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434 | _NULL, \ |
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435 | _NULL, \ |
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436 | _NULL, \ |
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437 | 0, \ |
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438 | 0, \ |
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439 | _NULL, \ |
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440 | _NULL, \ |
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441 | _NULL, \ |
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442 | _NULL, \ |
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443 | _NULL, \ |
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444 | _REENT_INIT_ATEXIT \ |
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445 | {_NULL, 0, _NULL}, \ |
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446 | _NULL, \ |
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447 | _NULL, \ |
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448 | _NULL \ |
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449 | } |
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450 | |
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451 | #define _REENT_INIT_PTR_ZEROED(var) \ |
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452 | { (var)->_stdin = (__FILE *)&__sf_fake_stdin; \ |
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453 | (var)->_stdout = (__FILE *)&__sf_fake_stdout; \ |
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454 | (var)->_stderr = (__FILE *)&__sf_fake_stderr; \ |
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455 | } |
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456 | |
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457 | /* Only add assert() calls if we are specified to debug. */ |
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458 | #ifdef _REENT_CHECK_DEBUG |
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459 | #include <assert.h> |
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460 | #define __reent_assert(x) assert(x) |
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461 | #else |
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462 | #define __reent_assert(x) ((void)0) |
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463 | #endif |
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464 | |
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465 | #ifdef __CUSTOM_FILE_IO__ |
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466 | #error Custom FILE I/O and _REENT_SMALL not currently supported. |
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467 | #endif |
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468 | |
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469 | /* Generic _REENT check macro. */ |
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470 | #define _REENT_CHECK(var, what, type, size, init) do { \ |
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471 | struct _reent *_r = (var); \ |
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472 | if (_r->what == NULL) { \ |
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473 | _r->what = (type)malloc(size); \ |
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474 | __reent_assert(_r->what); \ |
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475 | init; \ |
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476 | } \ |
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477 | } while (0) |
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478 | |
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479 | #define _REENT_CHECK_TM(var) \ |
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480 | _REENT_CHECK(var, _localtime_buf, struct __tm *, sizeof *((var)->_localtime_buf), \ |
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481 | /* nothing */) |
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482 | |
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483 | #define _REENT_CHECK_ASCTIME_BUF(var) \ |
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484 | _REENT_CHECK(var, _asctime_buf, char *, _REENT_ASCTIME_SIZE, \ |
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485 | memset((var)->_asctime_buf, 0, _REENT_ASCTIME_SIZE)) |
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486 | |
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487 | /* Handle the dynamically allocated rand48 structure. */ |
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488 | #define _REENT_INIT_RAND48(var) do { \ |
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489 | struct _reent *_r = (var); \ |
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490 | _r->_r48->_seed[0] = _RAND48_SEED_0; \ |
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491 | _r->_r48->_seed[1] = _RAND48_SEED_1; \ |
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492 | _r->_r48->_seed[2] = _RAND48_SEED_2; \ |
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493 | _r->_r48->_mult[0] = _RAND48_MULT_0; \ |
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494 | _r->_r48->_mult[1] = _RAND48_MULT_1; \ |
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495 | _r->_r48->_mult[2] = _RAND48_MULT_2; \ |
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496 | _r->_r48->_add = _RAND48_ADD; \ |
---|
497 | _r->_r48->_rand_next = 1; \ |
---|
498 | } while (0) |
---|
499 | #define _REENT_CHECK_RAND48(var) \ |
---|
500 | _REENT_CHECK(var, _r48, struct _rand48 *, sizeof *((var)->_r48), _REENT_INIT_RAND48((var))) |
---|
501 | |
---|
502 | #define _REENT_INIT_MP(var) do { \ |
---|
503 | struct _reent *_r = (var); \ |
---|
504 | _r->_mp->_result_k = 0; \ |
---|
505 | _r->_mp->_result = _r->_mp->_p5s = _NULL; \ |
---|
506 | _r->_mp->_freelist = _NULL; \ |
---|
507 | } while (0) |
---|
508 | #define _REENT_CHECK_MP(var) \ |
---|
509 | _REENT_CHECK(var, _mp, struct _mprec *, sizeof *((var)->_mp), _REENT_INIT_MP(var)) |
---|
510 | |
---|
511 | #define _REENT_CHECK_EMERGENCY(var) \ |
---|
512 | _REENT_CHECK(var, _emergency, char *, _REENT_EMERGENCY_SIZE, /* nothing */) |
---|
513 | |
---|
514 | #define _REENT_INIT_MISC(var) do { \ |
---|
515 | struct _reent *_r = (var); \ |
---|
516 | _r->_misc->_strtok_last = _NULL; \ |
---|
517 | _r->_misc->_mblen_state.__count = 0; \ |
---|
518 | _r->_misc->_mblen_state.__value.__wch = 0; \ |
---|
519 | _r->_misc->_wctomb_state.__count = 0; \ |
---|
520 | _r->_misc->_wctomb_state.__value.__wch = 0; \ |
---|
521 | _r->_misc->_mbtowc_state.__count = 0; \ |
---|
522 | _r->_misc->_mbtowc_state.__value.__wch = 0; \ |
---|
523 | _r->_misc->_mbrlen_state.__count = 0; \ |
---|
524 | _r->_misc->_mbrlen_state.__value.__wch = 0; \ |
---|
525 | _r->_misc->_mbrtowc_state.__count = 0; \ |
---|
526 | _r->_misc->_mbrtowc_state.__value.__wch = 0; \ |
---|
527 | _r->_misc->_mbsrtowcs_state.__count = 0; \ |
---|
528 | _r->_misc->_mbsrtowcs_state.__value.__wch = 0; \ |
---|
529 | _r->_misc->_wcrtomb_state.__count = 0; \ |
---|
530 | _r->_misc->_wcrtomb_state.__value.__wch = 0; \ |
---|
531 | _r->_misc->_wcsrtombs_state.__count = 0; \ |
---|
532 | _r->_misc->_wcsrtombs_state.__value.__wch = 0; \ |
---|
533 | _r->_misc->_l64a_buf[0] = '\0'; \ |
---|
534 | _r->_misc->_getdate_err = 0; \ |
---|
535 | } while (0) |
---|
536 | #define _REENT_CHECK_MISC(var) \ |
---|
537 | _REENT_CHECK(var, _misc, struct _misc_reent *, sizeof *((var)->_misc), _REENT_INIT_MISC(var)) |
---|
538 | |
---|
539 | #define _REENT_CHECK_SIGNAL_BUF(var) \ |
---|
540 | _REENT_CHECK(var, _signal_buf, char *, _REENT_SIGNAL_SIZE, /* nothing */) |
---|
541 | |
---|
542 | #define _REENT_SIGNGAM(ptr) ((ptr)->_gamma_signgam) |
---|
543 | #define _REENT_RAND_NEXT(ptr) ((ptr)->_r48->_rand_next) |
---|
544 | #define _REENT_RAND48_SEED(ptr) ((ptr)->_r48->_seed) |
---|
545 | #define _REENT_RAND48_MULT(ptr) ((ptr)->_r48->_mult) |
---|
546 | #define _REENT_RAND48_ADD(ptr) ((ptr)->_r48->_add) |
---|
547 | #define _REENT_MP_RESULT(ptr) ((ptr)->_mp->_result) |
---|
548 | #define _REENT_MP_RESULT_K(ptr) ((ptr)->_mp->_result_k) |
---|
549 | #define _REENT_MP_P5S(ptr) ((ptr)->_mp->_p5s) |
---|
550 | #define _REENT_MP_FREELIST(ptr) ((ptr)->_mp->_freelist) |
---|
551 | #define _REENT_ASCTIME_BUF(ptr) ((ptr)->_asctime_buf) |
---|
552 | #define _REENT_TM(ptr) ((ptr)->_localtime_buf) |
---|
553 | #define _REENT_EMERGENCY(ptr) ((ptr)->_emergency) |
---|
554 | #define _REENT_STRTOK_LAST(ptr) ((ptr)->_misc->_strtok_last) |
---|
555 | #define _REENT_MBLEN_STATE(ptr) ((ptr)->_misc->_mblen_state) |
---|
556 | #define _REENT_MBTOWC_STATE(ptr)((ptr)->_misc->_mbtowc_state) |
---|
557 | #define _REENT_WCTOMB_STATE(ptr)((ptr)->_misc->_wctomb_state) |
---|
558 | #define _REENT_MBRLEN_STATE(ptr) ((ptr)->_misc->_mbrlen_state) |
---|
559 | #define _REENT_MBRTOWC_STATE(ptr) ((ptr)->_misc->_mbrtowc_state) |
---|
560 | #define _REENT_MBSRTOWCS_STATE(ptr) ((ptr)->_misc->_mbsrtowcs_state) |
---|
561 | #define _REENT_WCRTOMB_STATE(ptr) ((ptr)->_misc->_wcrtomb_state) |
---|
562 | #define _REENT_WCSRTOMBS_STATE(ptr) ((ptr)->_misc->_wcsrtombs_state) |
---|
563 | #define _REENT_L64A_BUF(ptr) ((ptr)->_misc->_l64a_buf) |
---|
564 | #define _REENT_GETDATE_ERR_P(ptr) (&((ptr)->_misc->_getdate_err)) |
---|
565 | #define _REENT_SIGNAL_BUF(ptr) ((ptr)->_signal_buf) |
---|
566 | |
---|
567 | #else /* !_REENT_SMALL */ |
---|
568 | |
---|
569 | struct _reent |
---|
570 | { |
---|
571 | int _errno; /* local copy of errno */ |
---|
572 | |
---|
573 | /* FILE is a big struct and may change over time. To try to achieve binary |
---|
574 | compatibility with future versions, put stdin,stdout,stderr here. |
---|
575 | These are pointers into member __sf defined below. */ |
---|
576 | __FILE *_stdin, *_stdout, *_stderr; |
---|
577 | |
---|
578 | int _inc; /* used by tmpnam */ |
---|
579 | char _emergency[_REENT_EMERGENCY_SIZE]; |
---|
580 | |
---|
581 | /* TODO */ |
---|
582 | int _unspecified_locale_info; /* unused, reserved for locale stuff */ |
---|
583 | struct __locale_t *_locale;/* per-thread locale */ |
---|
584 | |
---|
585 | int __sdidinit; /* 1 means stdio has been init'd */ |
---|
586 | |
---|
587 | void (*__cleanup) (struct _reent *); |
---|
588 | |
---|
589 | /* used by mprec routines */ |
---|
590 | struct _Bigint *_result; |
---|
591 | int _result_k; |
---|
592 | struct _Bigint *_p5s; |
---|
593 | struct _Bigint **_freelist; |
---|
594 | |
---|
595 | /* used by some fp conversion routines */ |
---|
596 | int _cvtlen; /* should be size_t */ |
---|
597 | char *_cvtbuf; |
---|
598 | |
---|
599 | union |
---|
600 | { |
---|
601 | struct |
---|
602 | { |
---|
603 | unsigned int _unused_rand; |
---|
604 | char * _strtok_last; |
---|
605 | char _asctime_buf[_REENT_ASCTIME_SIZE]; |
---|
606 | struct __tm _localtime_buf; |
---|
607 | int _gamma_signgam; |
---|
608 | __extension__ unsigned long long _rand_next; |
---|
609 | struct _rand48 _r48; |
---|
610 | _mbstate_t _mblen_state; |
---|
611 | _mbstate_t _mbtowc_state; |
---|
612 | _mbstate_t _wctomb_state; |
---|
613 | char _l64a_buf[8]; |
---|
614 | char _signal_buf[_REENT_SIGNAL_SIZE]; |
---|
615 | int _getdate_err; |
---|
616 | _mbstate_t _mbrlen_state; |
---|
617 | _mbstate_t _mbrtowc_state; |
---|
618 | _mbstate_t _mbsrtowcs_state; |
---|
619 | _mbstate_t _wcrtomb_state; |
---|
620 | _mbstate_t _wcsrtombs_state; |
---|
621 | int _h_errno; |
---|
622 | } _reent; |
---|
623 | /* Two next two fields were once used by malloc. They are no longer |
---|
624 | used. They are used to preserve the space used before so as to |
---|
625 | allow addition of new reent fields and keep binary compatibility. */ |
---|
626 | struct |
---|
627 | { |
---|
628 | #define _N_LISTS 30 |
---|
629 | unsigned char * _nextf[_N_LISTS]; |
---|
630 | unsigned int _nmalloc[_N_LISTS]; |
---|
631 | } _unused; |
---|
632 | } _new; |
---|
633 | |
---|
634 | # ifndef _REENT_GLOBAL_ATEXIT |
---|
635 | /* atexit stuff */ |
---|
636 | struct _atexit *_atexit; /* points to head of LIFO stack */ |
---|
637 | struct _atexit _atexit0; /* one guaranteed table, required by ANSI */ |
---|
638 | # endif |
---|
639 | |
---|
640 | /* signal info */ |
---|
641 | void (**(_sig_func))(int); |
---|
642 | |
---|
643 | /* These are here last so that __FILE can grow without changing the offsets |
---|
644 | of the above members (on the off chance that future binary compatibility |
---|
645 | would be broken otherwise). */ |
---|
646 | struct _glue __sglue; /* root of glue chain */ |
---|
647 | # ifndef _REENT_GLOBAL_STDIO_STREAMS |
---|
648 | __FILE __sf[3]; /* first three file descriptors */ |
---|
649 | # endif |
---|
650 | }; |
---|
651 | |
---|
652 | #ifdef _REENT_GLOBAL_STDIO_STREAMS |
---|
653 | extern __FILE __sf[3]; |
---|
654 | #define _REENT_STDIO_STREAM(var, index) &__sf[index] |
---|
655 | #else |
---|
656 | #define _REENT_STDIO_STREAM(var, index) &(var)->__sf[index] |
---|
657 | #endif |
---|
658 | |
---|
659 | #define _REENT_INIT(var) \ |
---|
660 | { 0, \ |
---|
661 | _REENT_STDIO_STREAM(&(var), 0), \ |
---|
662 | _REENT_STDIO_STREAM(&(var), 1), \ |
---|
663 | _REENT_STDIO_STREAM(&(var), 2), \ |
---|
664 | 0, \ |
---|
665 | "", \ |
---|
666 | 0, \ |
---|
667 | _NULL, \ |
---|
668 | 0, \ |
---|
669 | _NULL, \ |
---|
670 | _NULL, \ |
---|
671 | 0, \ |
---|
672 | _NULL, \ |
---|
673 | _NULL, \ |
---|
674 | 0, \ |
---|
675 | _NULL, \ |
---|
676 | { \ |
---|
677 | { \ |
---|
678 | 0, \ |
---|
679 | _NULL, \ |
---|
680 | "", \ |
---|
681 | {0, 0, 0, 0, 0, 0, 0, 0, 0}, \ |
---|
682 | 0, \ |
---|
683 | 1, \ |
---|
684 | { \ |
---|
685 | {_RAND48_SEED_0, _RAND48_SEED_1, _RAND48_SEED_2}, \ |
---|
686 | {_RAND48_MULT_0, _RAND48_MULT_1, _RAND48_MULT_2}, \ |
---|
687 | _RAND48_ADD \ |
---|
688 | }, \ |
---|
689 | {0, {0}}, \ |
---|
690 | {0, {0}}, \ |
---|
691 | {0, {0}}, \ |
---|
692 | "", \ |
---|
693 | "", \ |
---|
694 | 0, \ |
---|
695 | {0, {0}}, \ |
---|
696 | {0, {0}}, \ |
---|
697 | {0, {0}}, \ |
---|
698 | {0, {0}}, \ |
---|
699 | {0, {0}} \ |
---|
700 | } \ |
---|
701 | }, \ |
---|
702 | _REENT_INIT_ATEXIT \ |
---|
703 | _NULL, \ |
---|
704 | {_NULL, 0, _NULL} \ |
---|
705 | } |
---|
706 | |
---|
707 | #define _REENT_INIT_PTR_ZEROED(var) \ |
---|
708 | { (var)->_stdin = _REENT_STDIO_STREAM(var, 0); \ |
---|
709 | (var)->_stdout = _REENT_STDIO_STREAM(var, 1); \ |
---|
710 | (var)->_stderr = _REENT_STDIO_STREAM(var, 2); \ |
---|
711 | (var)->_new._reent._rand_next = 1; \ |
---|
712 | (var)->_new._reent._r48._seed[0] = _RAND48_SEED_0; \ |
---|
713 | (var)->_new._reent._r48._seed[1] = _RAND48_SEED_1; \ |
---|
714 | (var)->_new._reent._r48._seed[2] = _RAND48_SEED_2; \ |
---|
715 | (var)->_new._reent._r48._mult[0] = _RAND48_MULT_0; \ |
---|
716 | (var)->_new._reent._r48._mult[1] = _RAND48_MULT_1; \ |
---|
717 | (var)->_new._reent._r48._mult[2] = _RAND48_MULT_2; \ |
---|
718 | (var)->_new._reent._r48._add = _RAND48_ADD; \ |
---|
719 | } |
---|
720 | |
---|
721 | #define _REENT_CHECK_RAND48(ptr) /* nothing */ |
---|
722 | #define _REENT_CHECK_MP(ptr) /* nothing */ |
---|
723 | #define _REENT_CHECK_TM(ptr) /* nothing */ |
---|
724 | #define _REENT_CHECK_ASCTIME_BUF(ptr) /* nothing */ |
---|
725 | #define _REENT_CHECK_EMERGENCY(ptr) /* nothing */ |
---|
726 | #define _REENT_CHECK_MISC(ptr) /* nothing */ |
---|
727 | #define _REENT_CHECK_SIGNAL_BUF(ptr) /* nothing */ |
---|
728 | |
---|
729 | #define _REENT_SIGNGAM(ptr) ((ptr)->_new._reent._gamma_signgam) |
---|
730 | #define _REENT_RAND_NEXT(ptr) ((ptr)->_new._reent._rand_next) |
---|
731 | #define _REENT_RAND48_SEED(ptr) ((ptr)->_new._reent._r48._seed) |
---|
732 | #define _REENT_RAND48_MULT(ptr) ((ptr)->_new._reent._r48._mult) |
---|
733 | #define _REENT_RAND48_ADD(ptr) ((ptr)->_new._reent._r48._add) |
---|
734 | #define _REENT_MP_RESULT(ptr) ((ptr)->_result) |
---|
735 | #define _REENT_MP_RESULT_K(ptr) ((ptr)->_result_k) |
---|
736 | #define _REENT_MP_P5S(ptr) ((ptr)->_p5s) |
---|
737 | #define _REENT_MP_FREELIST(ptr) ((ptr)->_freelist) |
---|
738 | #define _REENT_ASCTIME_BUF(ptr) ((ptr)->_new._reent._asctime_buf) |
---|
739 | #define _REENT_TM(ptr) (&(ptr)->_new._reent._localtime_buf) |
---|
740 | #define _REENT_EMERGENCY(ptr) ((ptr)->_emergency) |
---|
741 | #define _REENT_STRTOK_LAST(ptr) ((ptr)->_new._reent._strtok_last) |
---|
742 | #define _REENT_MBLEN_STATE(ptr) ((ptr)->_new._reent._mblen_state) |
---|
743 | #define _REENT_MBTOWC_STATE(ptr)((ptr)->_new._reent._mbtowc_state) |
---|
744 | #define _REENT_WCTOMB_STATE(ptr)((ptr)->_new._reent._wctomb_state) |
---|
745 | #define _REENT_MBRLEN_STATE(ptr)((ptr)->_new._reent._mbrlen_state) |
---|
746 | #define _REENT_MBRTOWC_STATE(ptr)((ptr)->_new._reent._mbrtowc_state) |
---|
747 | #define _REENT_MBSRTOWCS_STATE(ptr)((ptr)->_new._reent._mbsrtowcs_state) |
---|
748 | #define _REENT_WCRTOMB_STATE(ptr)((ptr)->_new._reent._wcrtomb_state) |
---|
749 | #define _REENT_WCSRTOMBS_STATE(ptr)((ptr)->_new._reent._wcsrtombs_state) |
---|
750 | #define _REENT_L64A_BUF(ptr) ((ptr)->_new._reent._l64a_buf) |
---|
751 | #define _REENT_SIGNAL_BUF(ptr) ((ptr)->_new._reent._signal_buf) |
---|
752 | #define _REENT_GETDATE_ERR_P(ptr) (&((ptr)->_new._reent._getdate_err)) |
---|
753 | |
---|
754 | #endif /* !_REENT_SMALL */ |
---|
755 | |
---|
756 | #define _REENT_INIT_PTR(var) \ |
---|
757 | { memset((var), 0, sizeof(*(var))); \ |
---|
758 | _REENT_INIT_PTR_ZEROED(var); \ |
---|
759 | } |
---|
760 | |
---|
761 | /* This value is used in stdlib/misc.c. reent/reent.c has to know it |
---|
762 | as well to make sure the freelist is correctly free'd. Therefore |
---|
763 | we define it here, rather than in stdlib/misc.c, as before. */ |
---|
764 | #define _Kmax (sizeof (size_t) << 3) |
---|
765 | |
---|
766 | /* |
---|
767 | * All references to struct _reent are via this pointer. |
---|
768 | * Internally, newlib routines that need to reference it should use _REENT. |
---|
769 | */ |
---|
770 | |
---|
771 | #ifndef __ATTRIBUTE_IMPURE_PTR__ |
---|
772 | #define __ATTRIBUTE_IMPURE_PTR__ |
---|
773 | #endif |
---|
774 | |
---|
775 | extern struct _reent *_impure_ptr __ATTRIBUTE_IMPURE_PTR__; |
---|
776 | extern struct _reent *const _global_impure_ptr __ATTRIBUTE_IMPURE_PTR__; |
---|
777 | |
---|
778 | void _reclaim_reent (struct _reent *); |
---|
779 | |
---|
780 | /* #define _REENT_ONLY define this to get only reentrant routines */ |
---|
781 | |
---|
782 | #if defined(__DYNAMIC_REENT__) && !defined(__SINGLE_THREAD__) |
---|
783 | #ifndef __getreent |
---|
784 | struct _reent * __getreent (void); |
---|
785 | #endif |
---|
786 | # define _REENT (__getreent()) |
---|
787 | #else /* __SINGLE_THREAD__ || !__DYNAMIC_REENT__ */ |
---|
788 | # define _REENT _impure_ptr |
---|
789 | #endif /* __SINGLE_THREAD__ || !__DYNAMIC_REENT__ */ |
---|
790 | |
---|
791 | #define _GLOBAL_REENT _global_impure_ptr |
---|
792 | |
---|
793 | #ifdef _REENT_GLOBAL_ATEXIT |
---|
794 | extern struct _atexit *_global_atexit; /* points to head of LIFO stack */ |
---|
795 | # define _GLOBAL_ATEXIT _global_atexit |
---|
796 | #else |
---|
797 | # define _GLOBAL_ATEXIT (_GLOBAL_REENT->_atexit) |
---|
798 | #endif |
---|
799 | |
---|
800 | #ifdef __cplusplus |
---|
801 | } |
---|
802 | #endif |
---|
803 | #endif /* _SYS_REENT_H_ */ |
---|