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1 /* |
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2 * Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * WARNING: All identifiers here must begin with an underscore. This file is |
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16 * included by stdio.h and others and we therefore must only use identifiers |
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17 * in the namespace allotted to us. |
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18 * |
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19 * |
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20 */ |
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21 |
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22 |
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23 |
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24 /** |
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25 @file |
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26 @publishedAll |
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27 @released |
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28 */ |
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29 |
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30 #ifndef _SYS_REENT_H_ |
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31 #ifdef __cplusplus |
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32 extern "C" { |
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33 #endif |
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34 |
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35 #define _SYS_REENT_H_ |
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36 |
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37 #include <_ansi.h> |
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38 #include <sys/stdio_t.h> /* _sFILE type */ |
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39 #include <time.h> /* for struct tm */ |
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40 |
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41 struct _glue |
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42 { |
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43 struct _glue *_next; |
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44 int _niobs; |
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45 struct __sFILE *_iobs; |
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46 }; |
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47 |
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48 /** |
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49 atexit() support |
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50 */ |
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51 #define _ATEXIT_SIZE 32 /* must be at least 32 to guarantee ANSI conformance */ |
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52 |
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53 struct _atexit { |
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54 struct _atexit *_next; /* next in list */ |
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55 int _ind; /* next index in this table */ |
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56 void (*_fns[_ATEXIT_SIZE])(void); /* the table itself */ |
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57 }; |
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58 |
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59 |
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60 /** |
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61 struct _reent |
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62 |
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63 This structure contains *all* globals needed by the library. |
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64 It's raison d'etre is to facilitate threads by making all library routines |
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65 reentrant. IE: All state information is contained here. |
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66 */ |
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67 |
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68 #define _ASCTIME_SIZE (26+8) /* 26 min, plus caution factor! */ |
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69 #define _MINNARROWBUFSIZE 100 |
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70 |
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71 #ifdef __MWERKS__ |
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72 #pragma warn_padding off |
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73 #endif |
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74 |
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75 struct _reent |
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76 { |
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77 /* local copy of errno */ |
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78 int _errno; |
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79 struct __sFILE _sf[3]; /* first three file descriptors: stdin, stdout, stderr */ |
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80 |
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81 char *_scanpoint; /* used by strtok */ |
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82 char _asctime[_ASCTIME_SIZE]; /* used by asctime */ |
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83 struct tm _struct_tm; /* used by gmtime */ |
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84 long _next[2]; /* used by rand/srand (64-bit seed for EPOC32) */ |
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85 int _inc; /* used by tmpnam */ |
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86 char _tmpnam[37]; /* used by tmpnam & inet_ntoa */ |
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87 wchar_t _wtmpnam[37]; /* used by tmpnam & inet_ntoa */ |
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88 void *_netdb; /* used by gethostbyaddr and similar netdb functions */ |
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89 |
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90 int _current_category; /* used by setlocale */ |
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91 const char *_current_locale; |
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92 |
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93 int __sdidinit; /* 1 means stdio has been init'd */ |
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94 |
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95 void (*__cleanup)(struct _reent *); |
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96 |
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97 /* atexit stuff */ |
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98 struct _atexit *_atexit; /* points to head of LIFO stack */ |
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99 struct _atexit _atexit0; /* one guaranteed table, required by ANSI */ |
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100 |
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101 /* signal info */ |
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102 void (**(_sig_func))(); |
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103 |
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104 struct _glue __sglue; /* root of glue chain for additional sFILE structures */ |
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105 |
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106 char **environ; |
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107 int environ_slots; |
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108 |
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109 char* _pNarrowEnvBuffer; |
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110 int _NEBSize; |
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111 |
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112 void *_system; /* Pointer to a C++ POSIX System object - Hands off! */ |
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113 }; |
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114 |
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115 /** |
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116 The struct _reent is managed on a per-thread basis by EPOC32, so there is no global |
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117 variable _impure_pointer and everyone has to use _REENT (panics in the event of an |
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118 error) or REENT2 (which returns a NULL pointer in the event of an error). |
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119 */ |
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120 IMPORT_C void _reclaim_reent (struct _reent*); |
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121 IMPORT_C void _REENT_INIT (struct _reent*); |
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122 IMPORT_C struct _reent* ImpurePtr (void); |
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123 IMPORT_C struct _reent* ImpurePtr2 (void); |
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124 IMPORT_C void _init_reent (struct _reent*,void*); |
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125 |
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126 /** |
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127 Support for explicit release of all STDLIB resources belonging to this thread |
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128 */ |
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129 IMPORT_C void CloseSTDLIB(); |
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130 |
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131 #define _REENT (ImpurePtr()) |
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132 #define _REENT2 (ImpurePtr2()) |
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133 #define __errno_r(ptr) ((ptr)->_errno) |
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134 |
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135 #ifdef __cplusplus |
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136 } |
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137 #endif |
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138 |
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139 #endif /* _SYS_REENT_H_ */ |