1 | /* |
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2 | * time.h |
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3 | * |
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4 | * Struct and function declarations for dealing with time. |
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5 | */ |
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6 | |
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7 | #ifndef _TIME_H_ |
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8 | |
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9 | #include "_ansi.h" |
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10 | #include <sys/reent.h> |
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11 | #include <sys/linux_time.h> |
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12 | |
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13 | #ifdef __cplusplus |
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14 | extern "C" { |
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15 | #endif |
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16 | |
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17 | #ifndef NULL |
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18 | #define NULL 0 |
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19 | #endif |
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20 | |
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21 | /* Get _CLOCKS_PER_SEC_ */ |
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22 | #include <machine/time.h> |
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23 | #include <sys/types.h> |
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24 | |
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25 | /* Time Value Specification Structures, P1003.1b-1993, p. 261 */ |
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26 | #ifndef _STRUCT_TIMESPEC |
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27 | #define _STRUCT_TIMESPEC |
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28 | struct timespec { |
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29 | time_t tv_sec; /* Seconds */ |
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30 | long tv_nsec; /* Nanoseconds */ |
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31 | }; |
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32 | #endif /* !_STRUCT_TIMESPEC */ |
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33 | |
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34 | #ifndef __need_timespec |
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35 | |
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36 | #define _TIME_H_ 1 |
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37 | |
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38 | #ifndef _CLOCKS_PER_SEC_ |
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39 | #define _CLOCKS_PER_SEC_ 1000 |
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40 | #endif |
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41 | |
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42 | #define CLOCKS_PER_SEC _CLOCKS_PER_SEC_ |
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43 | #define CLK_TCK CLOCKS_PER_SEC |
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44 | #define __need_size_t |
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45 | #include <stddef.h> |
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46 | |
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47 | struct tm |
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48 | { |
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49 | int tm_sec; |
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50 | int tm_min; |
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51 | int tm_hour; |
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52 | int tm_mday; |
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53 | int tm_mon; |
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54 | int tm_year; |
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55 | int tm_wday; |
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56 | int tm_yday; |
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57 | int tm_isdst; |
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58 | }; |
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59 | |
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60 | #ifndef __timer_t_defined |
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61 | # define __timer_t_defined 1 |
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62 | typedef __timer_t timer_t; |
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63 | #endif |
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64 | |
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65 | clock_t clock (void); |
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66 | double difftime (time_t _time2, time_t _time1); |
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67 | time_t mktime (struct tm *_timeptr); |
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68 | time_t time (time_t *_timer); |
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69 | #ifndef _REENT_ONLY |
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70 | char *asctime (const struct tm *_tblock); |
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71 | char *ctime (const time_t *_time); |
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72 | struct tm *gmtime (const time_t *_timer); |
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73 | struct tm *localtime (const time_t *_timer); |
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74 | #endif |
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75 | size_t strftime (char *_s, size_t _maxsize, const char *_fmt, const struct tm *_t); |
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76 | |
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77 | char *asctime_r (const struct tm *, char *); |
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78 | char *ctime_r (const time_t *, char *); |
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79 | struct tm *gmtime_r (const time_t *, struct tm *); |
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80 | struct tm *localtime_r (const time_t *, struct tm *); |
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81 | |
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82 | #ifndef __STRICT_ANSI__ |
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83 | char *strptime (const char *, const char *, struct tm *); |
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84 | void tzset (void); |
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85 | void _tzset_r (struct _reent *); |
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86 | |
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87 | typedef struct __tzrule_struct |
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88 | { |
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89 | char ch; |
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90 | int m; |
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91 | int n; |
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92 | int d; |
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93 | int s; |
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94 | time_t change; |
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95 | long offset; /* Match type of _timezone. */ |
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96 | } __tzrule_type; |
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97 | |
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98 | typedef struct __tzinfo_struct |
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99 | { |
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100 | int __tznorth; |
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101 | int __tzyear; |
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102 | __tzrule_type __tzrule[2]; |
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103 | } __tzinfo_type; |
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104 | |
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105 | __tzinfo_type *__gettzinfo (void); |
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106 | |
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107 | /* getdate functions */ |
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108 | |
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109 | #ifndef _REENT_ONLY |
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110 | #define getdate_err (*__getdate_err()) |
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111 | int *__getdate_err (void); |
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112 | |
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113 | struct tm * getdate (const char *); |
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114 | /* getdate_err is set to one of the following values to indicate the error. |
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115 | 1 the DATEMSK environment variable is null or undefined, |
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116 | 2 the template file cannot be opened for reading, |
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117 | 3 failed to get file status information, |
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118 | 4 the template file is not a regular file, |
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119 | 5 an error is encountered while reading the template file, |
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120 | 6 memory allication failed (not enough memory available), |
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121 | 7 there is no line in the template that matches the input, |
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122 | 8 invalid input specification */ |
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123 | #endif /* !_REENT_ONLY */ |
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124 | |
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125 | /* getdate_r returns the error code as above */ |
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126 | int getdate_r (const char *, struct tm *); |
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127 | |
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128 | /* defines for the opengroup specifications Derived from Issue 1 of the SVID. */ |
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129 | extern __IMPORT long _timezone; |
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130 | extern __IMPORT int _daylight; |
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131 | extern __IMPORT char *_tzname[2]; |
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132 | |
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133 | /* POSIX defines the external tzname being defined in time.h */ |
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134 | #ifndef tzname |
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135 | #define tzname _tzname |
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136 | #endif |
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137 | |
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138 | #endif /* !__STRICT_ANSI__ */ |
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139 | |
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140 | #include <sys/features.h> |
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141 | |
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142 | #if defined(_POSIX_TIMERS) |
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143 | |
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144 | #include <signal.h> |
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145 | |
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146 | /* Clocks, P1003.1b-1993, p. 263 */ |
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147 | |
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148 | int clock_settime (clockid_t clock_id, const struct timespec *tp); |
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149 | int clock_gettime (clockid_t clock_id, struct timespec *tp); |
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150 | int clock_getres (clockid_t clock_id, struct timespec *res); |
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151 | |
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152 | /* Create a Per-Process Timer, P1003.1b-1993, p. 264 */ |
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153 | |
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154 | int timer_create (clockid_t clock_id, struct sigevent *evp, timer_t *timerid); |
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155 | |
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156 | /* Delete a Per_process Timer, P1003.1b-1993, p. 266 */ |
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157 | |
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158 | int timer_delete (timer_t timerid); |
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159 | |
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160 | /* Per-Process Timers, P1003.1b-1993, p. 267 */ |
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161 | |
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162 | int timer_settime (timer_t timerid, int flags, const struct itimerspec *value, |
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163 | struct itimerspec *ovalue); |
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164 | int timer_gettime (timer_t timerid, struct itimerspec *value); |
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165 | int timer_getoverrun (timer_t timerid); |
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166 | |
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167 | /* High Resolution Sleep, P1003.1b-1993, p. 269 */ |
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168 | |
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169 | int nanosleep (const struct timespec *rqtp, struct timespec *rmtp); |
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170 | |
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171 | #endif /* _POSIX_TIMERS */ |
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172 | |
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173 | /* CPU-time Clock Attributes, P1003.4b/D8, p. 54 */ |
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174 | |
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175 | /* values for the clock enable attribute */ |
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176 | |
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177 | #define CLOCK_ENABLED 1 /* clock is enabled, i.e. counting execution time */ |
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178 | #define CLOCK_DISABLED 0 /* clock is disabled */ |
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179 | |
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180 | /* values for the pthread cputime_clock_allowed attribute */ |
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181 | |
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182 | #define CLOCK_ALLOWED 1 /* If a thread is created with this value a */ |
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183 | /* CPU-time clock attached to that thread */ |
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184 | /* shall be accessible. */ |
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185 | #define CLOCK_DISALLOWED 0 /* If a thread is created with this value, the */ |
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186 | /* thread shall not have a CPU-time clock */ |
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187 | /* accessible. */ |
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188 | |
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189 | /* Manifest Constants, P1003.1b-1993, p. 262 */ |
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190 | |
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191 | #define CLOCK_REALTIME (clockid_t)1 |
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192 | |
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193 | /* Flag indicating time is "absolute" with respect to the clock |
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194 | associated with a time. */ |
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195 | |
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196 | #define TIMER_ABSTIME 4 |
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197 | |
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198 | /* Manifest Constants, P1003.4b/D8, p. 55 */ |
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199 | |
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200 | #if defined(_POSIX_CPUTIME) |
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201 | |
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202 | /* When used in a clock or timer function call, this is interpreted as |
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203 | the identifier of the CPU_time clock associated with the PROCESS |
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204 | making the function call. */ |
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205 | |
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206 | #define CLOCK_PROCESS_CPUTIME_ID (clockid_t)2 |
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207 | |
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208 | #endif |
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209 | |
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210 | #if defined(_POSIX_THREAD_CPUTIME) |
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211 | |
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212 | /* When used in a clock or timer function call, this is interpreted as |
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213 | the identifier of the CPU_time clock associated with the THREAD |
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214 | making the function call. */ |
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215 | |
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216 | #define CLOCK_THREAD_CPUTIME_ID (clockid_t)3 |
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217 | |
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218 | #endif |
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219 | |
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220 | #if defined(_POSIX_CPUTIME) |
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221 | |
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222 | /* Accessing a Process CPU-time CLock, P1003.4b/D8, p. 55 */ |
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223 | |
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224 | int clock_getcpuclockid (pid_t pid, clockid_t *clock_id); |
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225 | |
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226 | #endif /* _POSIX_CPUTIME */ |
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227 | |
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228 | #if defined(_POSIX_CPUTIME) || defined(_POSIX_THREAD_CPUTIME) |
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229 | |
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230 | /* CPU-time Clock Attribute Access, P1003.4b/D8, p. 56 */ |
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231 | |
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232 | int clock_setenable_attr (clockid_t clock_id, int attr); |
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233 | int clock_getenable_attr (clockid_t clock_id, int *attr); |
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234 | |
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235 | #endif /* _POSIX_CPUTIME or _POSIX_THREAD_CPUTIME */ |
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236 | |
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237 | #ifdef __cplusplus |
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238 | } |
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239 | #endif |
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240 | |
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241 | #endif /* ! __need_timespec */ |
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242 | |
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243 | #undef __need_timespec |
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244 | |
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245 | #endif /* _TIME_H_ */ |
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246 | |
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