Mercurial > ecos
annotate packages/language/c/libc/time/current/include/time.h @ 543:598fea7813df
Add strptime() function.
| author | gthomas |
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| date | Mon, 27 Jan 2003 22:10:15 +0000 |
| parents | d2c90368aeef |
| children | 442ee3074818 |
| rev | line source |
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1 #ifndef CYGONCE_LIBC_TIME_TIME_H |
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2 #define CYGONCE_LIBC_TIME_TIME_H |
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3 /*=========================================================================== |
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4 // |
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5 // time.h |
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6 // |
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7 // Date and time routines from ISO C section 7.12 and POSIX 1003.1 |
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8 // |
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9 //=========================================================================== |
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10 //####ECOSGPLCOPYRIGHTBEGIN#### |
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11 // ------------------------------------------- |
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12 // This file is part of eCos, the Embedded Configurable Operating System. |
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13 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. |
| 543 | 14 // Copyright (C) 2003 Gary Thomas |
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15 // |
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16 // eCos is free software; you can redistribute it and/or modify it under |
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17 // the terms of the GNU General Public License as published by the Free |
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18 // Software Foundation; either version 2 or (at your option) any later version. |
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19 // |
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20 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY |
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21 // WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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22 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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23 // for more details. |
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24 // |
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25 // You should have received a copy of the GNU General Public License along |
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26 // with eCos; if not, write to the Free Software Foundation, Inc., |
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27 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
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28 // |
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29 // As a special exception, if other files instantiate templates or use macros |
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30 // or inline functions from this file, or you compile this file and link it |
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31 // with other works to produce a work based on this file, this file does not |
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32 // by itself cause the resulting work to be covered by the GNU General Public |
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33 // License. However the source code for this file must still be made available |
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34 // in accordance with section (3) of the GNU General Public License. |
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35 // |
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36 // This exception does not invalidate any other reasons why a work based on |
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37 // this file might be covered by the GNU General Public License. |
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38 // |
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39 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. |
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40 // at http://sources.redhat.com/ecos/ecos-license/ |
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41 // ------------------------------------------- |
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42 //####ECOSGPLCOPYRIGHTEND#### |
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43 //=========================================================================== |
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44 //#####DESCRIPTIONBEGIN#### |
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45 // |
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46 // Author(s): jlarmour |
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47 // Contributors: |
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48 // Date: 2000-04-14 |
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49 // Purpose: Provide definitions required by ISO C section 7.12 and |
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50 // POSIX 1003.1 8.3.4-8.3.7 |
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51 // Description: |
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52 // Usage: Do not include this file directly - use #include <time.h> |
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53 // |
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54 //####DESCRIPTIONEND#### |
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55 // |
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56 //=========================================================================*/ |
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57 |
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58 // CONFIGURATION |
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59 |
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60 #include <pkgconf/libc_time.h> // C library configuration |
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61 |
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62 // INCLUDES |
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63 |
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64 #include <cyg/infra/cyg_type.h> // Common type definitions and support |
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65 |
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66 // TYPE DEFINITIONS |
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67 |
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68 // Define struct tm as per ISO C para 7.12.1 |
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69 struct tm { |
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70 int tm_sec; // seconds after the minute - [0..61] |
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71 // (note 61 allows for two leap seconds) |
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72 int tm_min; // minutes after the hour - [0..59] |
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73 int tm_hour; // hours since midnight - [0..23] |
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74 int tm_mday; // days of the month - [1..31] |
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75 int tm_mon; // months since January - [0..11] |
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76 int tm_year; // years since 1900 |
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77 int tm_wday; // days since Sunday - [0..6] |
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78 int tm_yday; // days since January 1 - [0..365] |
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79 int tm_isdst; // Daylight Saving Time flag - positive if DST is in |
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80 // effect, 0 if not in effect, and negative if the info |
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81 // is not available |
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82 }; |
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83 |
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84 // The following struct is used by the implementation-defined functions |
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85 // to manipulate the Daylight Savings Time state |
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86 typedef enum { |
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87 CYG_LIBC_TIME_DSTNA = -1, |
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88 CYG_LIBC_TIME_DSTOFF = 0, |
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89 CYG_LIBC_TIME_DSTON = 1 |
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90 } Cyg_libc_time_dst; |
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91 |
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92 // FUNCTION PROTOTYPES |
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93 |
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94 #ifdef __cplusplus |
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95 extern "C" { |
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96 #endif |
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97 |
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98 //=========================================================================== |
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99 // |
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100 // POSIX 1003.1 functions |
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101 |
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102 #ifdef CYGFUN_LIBC_TIME_POSIX |
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103 |
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104 ///////////////////////////////// |
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105 // asctime_r() - POSIX.1 8.3.4 // |
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106 ///////////////////////////////// |
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107 // |
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108 // This returns a textual representation of a struct tm, and writes |
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109 // the string to return into __buf |
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110 // |
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111 |
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112 extern char * |
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113 asctime_r( const struct tm *__timeptr, char *__buf ); |
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114 |
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115 /////////////////////////////// |
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116 // ctime_r() - POSIX.1 8.3.5 // |
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117 /////////////////////////////// |
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118 // |
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119 // This returns the equivalent of ctime() but writes to __buf |
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120 // to store the returned string |
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121 // |
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122 |
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123 extern char * |
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124 ctime_r( const time_t *__timer, char *__buf ); |
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125 |
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126 //////////////////////////////// |
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127 // gmtime_r() - POSIX.1 8.3.6 // |
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128 //////////////////////////////// |
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129 // |
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130 // This converts a time_t into a struct tm expressed in UTC, and stores |
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131 // the result in the space occupied by __result |
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132 // |
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133 |
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134 extern struct tm * |
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135 gmtime_r( const time_t *__timer, struct tm *__result ); |
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136 |
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137 /////////////////////////////////// |
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138 // localtime_r() - POSIX.1 8.3.7 // |
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139 /////////////////////////////////// |
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140 // |
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141 // This converts a time_t into a struct tm expressed in local time, and |
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142 // stores the result in the space occupied by __result |
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143 // |
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144 |
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145 extern struct tm * |
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146 localtime_r( const time_t *__timer, struct tm *__result ); |
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147 |
| 543 | 148 ///////////////////////////////////////////////////////// |
| 149 // strptime() - | |
| 150 ///////////////////////////////////////////////////////// | |
| 151 // | |
| 152 // Parse a time string into a struct tm | |
| 153 // | |
| 154 | |
| 155 extern char * | |
| 156 strptime( const char *__s, const char *__format, | |
| 157 struct tm *__timeptr); //__attribute__ ((format (strftime, 2))); | |
| 158 | |
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115
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159 |
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160 #endif // ifdef CYGFUN_LIBC_TIME_POSIX |
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161 |
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162 //=========================================================================== |
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163 |
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164 // ISO C functions |
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165 |
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166 // Time manipulation functions - ISO C 7.12.2 |
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167 |
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168 ////////////////////////////// |
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169 // clock() - ISO C 7.12.2.1 // |
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170 ////////////////////////////// |
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171 // |
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172 // Returns processor time used in "clock"s. For a single process, |
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173 // multi-threaded system this will just be the time since booting |
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174 // |
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175 |
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176 extern clock_t |
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177 clock( void ); |
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178 |
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179 ///////////////////////////////// |
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180 // difftime() - ISO C 7.12.2.2 // |
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181 ///////////////////////////////// |
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182 // |
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183 // This returns (__time1 - __time0) in seconds |
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184 // |
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185 |
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186 extern double |
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187 difftime( time_t __time1, time_t __time0 ); |
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188 |
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189 /////////////////////////////// |
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190 // mktime() - ISO C 7.12.2.3 // |
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191 /////////////////////////////// |
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192 // |
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193 // This converts a "struct tm" to a "time_t" |
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194 // |
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195 |
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196 extern time_t |
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197 mktime( struct tm *__timeptr ); |
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198 |
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199 ///////////////////////////// |
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200 // time() - ISO C 7.12.2.4 // |
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201 ///////////////////////////// |
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202 // |
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203 // This returns calendar time as a time_t |
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204 // |
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205 |
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206 extern time_t |
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207 time( time_t *__timer ); |
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208 |
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209 // Time conversion functions - ISO C 7.12.3 |
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210 |
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211 //////////////////////////////// |
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212 // asctime() - ISO C 7.12.3.1 // |
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213 //////////////////////////////// |
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214 // |
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215 // This returns a textual representation of a struct tm |
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216 // |
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217 |
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218 extern char * |
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219 asctime( const struct tm *__timeptr ); |
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220 |
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221 ////////////////////////////// |
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222 // ctime() - ISO C 7.12.3.2 // |
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223 ////////////////////////////// |
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224 // |
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225 // This returns asctime(localtime(__timeptr)) |
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226 // |
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227 |
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228 extern char * |
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229 ctime( const time_t *__timer ); |
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230 |
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231 /////////////////////////////// |
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232 // gmtime() - ISO C 7.12.3.3 // |
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233 /////////////////////////////// |
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234 // |
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235 // This converts a time_t into a struct tm expressed in UTC |
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236 // |
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237 |
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238 extern struct tm * |
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239 gmtime( const time_t *__timer ); |
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240 |
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241 ////////////////////////////////// |
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242 // localtime() - ISO C 7.12.3.4 // |
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243 ////////////////////////////////// |
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244 // |
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245 // This converts a time_t into a struct tm expressed in local time |
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246 // |
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247 |
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248 extern struct tm * |
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249 localtime( const time_t *__timer ); |
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250 |
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251 ///////////////////////////////// |
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252 // strftime() - ISO C 7.12.3.5 // |
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253 ///////////////////////////////// |
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254 // |
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255 // This converts a string using format specifiers that signify various |
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256 // time-related quantities |
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257 // |
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258 |
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259 extern size_t |
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260 strftime( char *__s, size_t __maxsize, const char *__format, |
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261 const struct tm *__timeptr); //__attribute__ ((format (strftime, 3))); |
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262 |
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263 //=========================================================================== |
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264 |
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265 // Implementation-specific functions |
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266 |
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267 //////////////////////////////////// |
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268 // cyg_libc_time_setzoneoffsets() // |
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269 //////////////////////////////////// |
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270 // |
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271 // This function sets the offsets used when Daylight Savings Time is enabled |
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272 // or disabled. The offsets are in time_t's |
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273 // |
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274 |
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275 extern void |
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276 cyg_libc_time_setzoneoffsets( time_t __stdoffset, time_t __dstoffset ); |
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277 |
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278 //////////////////////////// |
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279 // cyg_libc_time_setdst() // |
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280 //////////////////////////// |
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281 // |
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282 // This function sets the state of Daylight Savings Time: on, off, or unknown |
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283 // |
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284 |
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285 extern void |
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286 cyg_libc_time_setdst( Cyg_libc_time_dst __state ); |
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287 |
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288 |
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289 //////////////////////////////////// |
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290 // cyg_libc_time_getzoneoffsets() // |
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291 //////////////////////////////////// |
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292 // |
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293 // This function retrieves the current state of the Daylight Savings Time |
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294 // and the offsets of both STD and DST |
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295 // The offsets are both in time_t's |
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296 // |
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297 |
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298 extern Cyg_libc_time_dst |
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299 cyg_libc_time_getzoneoffsets( time_t *__stdoffset, time_t *__dstoffset ); |
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300 |
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301 ///////////////////////////// |
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302 // cyg_libc_time_settime() // |
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303 ///////////////////////////// |
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304 // |
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305 // This function sets the current time for the system. The time is |
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306 // specified as a time_t in UTC. It returns non-zero on error. |
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307 // |
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308 |
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309 extern cyg_bool |
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310 cyg_libc_time_settime( time_t __utctime ); |
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311 |
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312 |
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313 #ifdef __cplusplus |
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314 } // extern "C" |
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315 #endif |
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316 |
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317 #include <cyg/libc/time/time.inl> |
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318 |
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319 #endif // CYGONCE_LIBC_TIME_TIME_H multiple inclusion protection |
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320 |
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321 // EOF time.h |
