1 | // |
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2 | // Cforall Version 1.0.0 Copyright (C) 2018 University of Waterloo |
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3 | // |
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4 | // The contents of this file are covered under the licence agreement in the |
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5 | // file "LICENCE" distributed with Cforall. |
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6 | // |
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7 | // time -- |
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8 | // |
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9 | // Author : Peter A. Buhr |
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10 | // Created On : Wed Mar 14 23:18:57 2018 |
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11 | // Last Modified By : Peter A. Buhr |
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12 | // Last Modified On : Wed Mar 28 18:03:08 2018 |
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13 | // Update Count : 568 |
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14 | // |
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15 | |
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16 | #pragma once |
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17 | |
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18 | // http://en.cppreference.com/w/cpp/header/chrono |
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19 | // http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0355r5.html#refcc |
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20 | |
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21 | #include <time.h> // timespec |
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22 | extern "C" { |
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23 | #include <sys/time.h> // timeval |
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24 | } |
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25 | #include <iostream> // istype/ostype |
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26 | |
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27 | enum { TIMEGRAN = 1_000_000_000LL }; // nanosecond granularity, except for timeval |
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28 | |
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29 | |
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30 | //######################### timeval ######################### |
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31 | |
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32 | static inline void ?{}( timeval & t ) {} |
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33 | static inline void ?{}( timeval & t, time_t sec ) { t.tv_sec = sec; t.tv_usec = 0; } |
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34 | static inline void ?{}( timeval & t, time_t sec, suseconds_t usec ) { t.tv_sec = sec; t.tv_usec = usec; } |
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35 | static inline void ?{}( timeval & t, zero_t ) { t.tv_sec = 0; t.tv_usec = 0; } |
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36 | static inline timeval ?=?( timeval & t, zero_t ) { return t{ 0 }; } |
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37 | static inline timeval ?+?( timeval & lhs, timeval rhs ) { return (timeval)@{ lhs.tv_sec + rhs.tv_sec, lhs.tv_usec + rhs.tv_usec }; } |
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38 | static inline timeval ?-?( timeval & lhs, timeval rhs ) { return (timeval)@{ lhs.tv_sec - rhs.tv_sec, lhs.tv_usec - rhs.tv_usec }; } |
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39 | static inline _Bool ?==?( timeval lhs, timeval rhs ) { return lhs.tv_sec == rhs.tv_sec && lhs.tv_usec == rhs.tv_usec; } |
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40 | static inline _Bool ?!=?( timeval lhs, timeval rhs ) { return lhs.tv_sec != rhs.tv_sec || lhs.tv_usec != rhs.tv_usec; } |
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41 | |
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42 | |
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43 | //######################### timespec ######################### |
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44 | |
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45 | static inline void ?{}( timespec & t ) {} |
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46 | static inline void ?{}( timespec & t, time_t sec ) { t.tv_sec = sec; t.tv_nsec = 0; } |
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47 | static inline void ?{}( timespec & t, time_t sec, __syscall_slong_t nsec ) { t.tv_sec = sec; t.tv_nsec = nsec; } |
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48 | static inline void ?{}( timespec & t, zero_t ) { t.tv_sec = 0; t.tv_nsec = 0; } |
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49 | static inline timespec ?=?( timespec & t, zero_t ) { return t{ 0 }; } |
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50 | static inline timespec ?+?( timespec & lhs, timespec rhs ) { return (timespec)@{ lhs.tv_sec + rhs.tv_sec, lhs.tv_nsec + rhs.tv_nsec }; } |
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51 | static inline timespec ?-?( timespec & lhs, timespec rhs ) { return (timespec)@{ lhs.tv_sec - rhs.tv_sec, lhs.tv_nsec - rhs.tv_nsec }; } |
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52 | static inline _Bool ?==?( timespec lhs, timespec rhs ) { return lhs.tv_sec == rhs.tv_sec && lhs.tv_nsec == rhs.tv_nsec; } |
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53 | static inline _Bool ?!=?( timespec lhs, timespec rhs ) { return lhs.tv_sec != rhs.tv_sec || lhs.tv_nsec != rhs.tv_nsec; } |
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54 | |
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55 | |
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56 | //######################### C time ######################### |
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57 | |
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58 | static inline char * ctime( time_t tp ) { char * buf = ctime( &tp ); buf[24] = '\0'; return buf; } |
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59 | static inline char * ctime_r( time_t tp, char * buf ) { ctime_r( &tp, buf ); buf[24] = '\0'; return buf; } |
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60 | static inline tm * gmtime( time_t tp ) { return gmtime( &tp ); } |
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61 | static inline tm * gmtime_r( time_t tp, tm * result ) { return gmtime_r( &tp, result ); } |
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62 | static inline tm * localtime( time_t tp ) { return localtime( &tp ); } |
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63 | static inline tm * localtime_r( time_t tp, tm * result ) { return localtime_r( &tp, result ); } |
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64 | |
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65 | //######################### Duration ######################### |
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66 | |
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67 | struct Duration { |
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68 | int64_t tv; |
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69 | }; |
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70 | |
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71 | static inline void ?{}( Duration & dur ) with( dur ) { tv = 0; } |
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72 | static inline void ?{}( Duration & dur, Duration d ) with( dur ) { tv = d.tv; } |
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73 | static inline void ?{}( Duration & dur, zero_t ) with( dur ) { tv = 0; } |
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74 | static inline Duration ?=?( Duration & dur, zero_t ) { return dur{ 0 }; } |
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75 | |
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76 | static inline void ?{}( Duration & dur, timeval t ) with( dur ) { |
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77 | tv = (int64_t)t.tv_sec * TIMEGRAN + t.tv_usec * 1000; |
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78 | } // Duration |
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79 | |
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80 | static inline void ?{}( Duration & dur, timespec t ) with( dur ) { |
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81 | tv = (int64_t)t.tv_sec * TIMEGRAN + t.tv_nsec; |
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82 | } // Duration |
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83 | |
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84 | static inline Duration ?=?( Duration & dur, timeval t ) with( dur ) { |
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85 | tv = (int64_t)t.tv_sec * TIMEGRAN + t.tv_usec * 1000; |
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86 | return dur; |
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87 | } // ?=? |
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88 | |
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89 | static inline Duration ?=?( Duration & dur, timespec t ) with( dur ) { |
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90 | tv = (int64_t)t.tv_sec * TIMEGRAN + t.tv_nsec; |
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91 | return dur; |
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92 | } // ?=? timespec |
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93 | |
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94 | static inline int64_t nsecs( Duration dur ) with( dur ) { return tv; } |
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95 | |
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96 | static inline Duration +?( Duration rhs ) with( rhs ) { return (Duration)@{ +tv }; } |
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97 | static inline Duration ?+?( Duration & lhs, Duration rhs ) { return (Duration)@{ lhs.tv + rhs.tv }; } |
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98 | static inline Duration ?+=?( Duration & lhs, Duration rhs ) { lhs = lhs + rhs; return lhs; } |
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99 | |
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100 | static inline Duration -?( Duration rhs ) with( rhs ) { return (Duration)@{ -tv }; } |
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101 | static inline Duration ?-?( Duration & lhs, Duration rhs ) { return (Duration)@{ lhs.tv - rhs.tv }; } |
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102 | static inline Duration ?-=?( Duration & lhs, Duration rhs ) { lhs = lhs - rhs; return lhs; } |
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103 | |
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104 | static inline Duration ?*?( Duration lhs, int64_t rhs ) { return (Duration)@{ lhs.tv * rhs }; } |
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105 | static inline Duration ?*?( int64_t lhs, Duration rhs ) { return (Duration)@{ lhs * rhs.tv }; } |
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106 | static inline Duration ?*=?( Duration & lhs, int64_t rhs ) { lhs = lhs * rhs; return lhs; } |
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107 | |
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108 | static inline Duration ?/?( Duration lhs, int64_t rhs ) { return (Duration)@{ lhs.tv / rhs }; } |
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109 | static inline int64_t ?/?( Duration lhs, Duration rhs ) { return lhs.tv / rhs.tv; } |
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110 | static inline Duration ?/=?( Duration & lhs, int64_t rhs ) { lhs = lhs / rhs; return lhs; } |
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111 | |
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112 | static inline Duration ?%?( Duration lhs, Duration rhs ) { return (Duration)@{ lhs.tv % rhs.tv }; } |
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113 | |
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114 | static inline _Bool ?==?( Duration lhs, Duration rhs ) { return lhs.tv == rhs.tv; } |
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115 | static inline _Bool ?!=?( Duration lhs, Duration rhs ) { return lhs.tv != rhs.tv; } |
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116 | static inline _Bool ?<? ( Duration lhs, Duration rhs ) { return lhs.tv < rhs.tv; } |
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117 | static inline _Bool ?<=?( Duration lhs, Duration rhs ) { return lhs.tv <= rhs.tv; } |
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118 | static inline _Bool ?>? ( Duration lhs, Duration rhs ) { return lhs.tv > rhs.tv; } |
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119 | static inline _Bool ?>=?( Duration lhs, Duration rhs ) { return lhs.tv >= rhs.tv; } |
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120 | |
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121 | static inline _Bool ?==?( Duration lhs, zero_t ) { return lhs.tv == 0; } |
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122 | static inline _Bool ?!=?( Duration lhs, zero_t ) { return lhs.tv != 0; } |
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123 | static inline _Bool ?<? ( Duration lhs, zero_t ) { return lhs.tv < 0; } |
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124 | static inline _Bool ?<=?( Duration lhs, zero_t ) { return lhs.tv <= 0; } |
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125 | static inline _Bool ?>? ( Duration lhs, zero_t ) { return lhs.tv > 0; } |
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126 | static inline _Bool ?>=?( Duration lhs, zero_t ) { return lhs.tv >= 0; } |
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127 | |
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128 | static inline Duration abs( Duration lhs ) { return lhs.tv >= 0 ? lhs : -lhs; } |
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129 | |
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130 | forall( dtype ostype | ostream( ostype ) ) ostype & ?|?( ostype & os, Duration dur ); |
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131 | |
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132 | static inline Duration ?`ns( int64_t nsec ) { return (Duration)@{ nsec }; } |
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133 | static inline Duration ?`us( int64_t usec ) { return (Duration)@{ usec * (TIMEGRAN / 1_000_000LL) }; } |
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134 | static inline Duration ?`ms( int64_t msec ) { return (Duration)@{ msec * (TIMEGRAN / 1_000LL) }; } |
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135 | static inline Duration ?`s ( int64_t sec ) { return (Duration)@{ sec * TIMEGRAN }; } |
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136 | static inline Duration ?`s ( double sec ) { return (Duration)@{ sec * TIMEGRAN }; } |
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137 | static inline Duration ?`m ( int64_t min ) { return (Duration)@{ min * (60LL * TIMEGRAN) }; } |
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138 | static inline Duration ?`m ( double min ) { return (Duration)@{ min * (60LL * TIMEGRAN) }; } |
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139 | static inline Duration ?`h ( int64_t hours ) { return (Duration)@{ hours * (3600LL * TIMEGRAN) }; } |
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140 | static inline Duration ?`h ( double hours ) { return (Duration)@{ hours * (3600LL * TIMEGRAN) }; } |
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141 | static inline Duration ?`d ( int64_t days ) { return (Duration)@{ days * (24LL * 3600LL * TIMEGRAN) }; } |
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142 | static inline Duration ?`d ( double days ) { return (Duration)@{ days * (24LL * 3600LL * TIMEGRAN) }; } |
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143 | static inline Duration ?`w ( int64_t weeks ) { return (Duration)@{ weeks * (7LL * 24LL * 3600LL * TIMEGRAN) }; } |
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144 | static inline Duration ?`f ( int64_t fortnight ) { return (Duration)@{ fortnight * (14LL * 24LL * 3600LL * TIMEGRAN) }; } |
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145 | |
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146 | static inline int64_t ?`ns ( Duration dur ) { return dur.tv; } |
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147 | static inline int64_t ?`us ( Duration dur ) { return dur.tv / (TIMEGRAN / 1_000_000LL); } |
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148 | static inline int64_t ?`ms ( Duration dur ) { return dur.tv / (TIMEGRAN / 1_000LL); } |
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149 | static inline int64_t ?`s ( Duration dur ) { return dur.tv / TIMEGRAN; } |
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150 | static inline int64_t ?`m ( Duration dur ) { return dur.tv / (60LL * TIMEGRAN); } |
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151 | static inline int64_t ?`h ( Duration dur ) { return dur.tv / (3600LL * TIMEGRAN); } |
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152 | static inline int64_t ?`d ( Duration dur ) { return dur.tv / (24LL * 3600LL * TIMEGRAN); } |
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153 | static inline int64_t ?`w ( Duration dur ) { return dur.tv / (7LL * 24LL * 3600LL * TIMEGRAN); } |
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154 | static inline int64_t ?`f ( Duration dur ) { return dur.tv / (14LL * 24LL * 3600LL * TIMEGRAN); } |
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155 | |
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156 | //------------------------- timeval (cont) ------------------------- |
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157 | |
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158 | static inline void ?{}( timeval & t, Duration dur ) with( dur ) { |
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159 | t.tv_sec = tv / TIMEGRAN; // seconds |
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160 | t.tv_usec = tv % TIMEGRAN / (TIMEGRAN / 1_000_000LL); // microseconds |
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161 | } // ?{} |
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162 | |
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163 | //------------------------- timespec (cont) ------------------------- |
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164 | |
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165 | static inline void ?{}( timespec & t, Duration dur ) with( dur ) { |
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166 | t.tv_sec = tv / TIMEGRAN; // seconds |
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167 | t.tv_nsec = tv % TIMEGRAN; // nanoseconds |
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168 | } // Timespec |
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169 | |
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170 | |
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171 | //######################### Time ######################### |
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172 | |
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173 | |
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174 | struct Time { |
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175 | uint64_t tv; |
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176 | }; |
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177 | |
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178 | void mktime( Time & time, int year, int month, int day, int hour, int min, int sec, int nsec ); |
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179 | |
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180 | static inline void ?{}( Time & t ) with( t ) { |
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181 | tv = 0; |
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182 | } // Time |
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183 | |
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184 | static inline void ?{}( Time & time, int year, int month, int day, int hour, int min, int sec, int nsec ) { |
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185 | mktime( time, year, month, day, hour, min, sec, nsec ); |
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186 | } // Time |
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187 | |
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188 | static inline void ?{}( Time & time, int year, int month, int day, int hour, int min, int sec ) { |
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189 | mktime( time, year, month, day, hour, min, sec, 0 ); |
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190 | } // Time |
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191 | |
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192 | static inline void ?{}( Time & time, int year, int month, int day, int hour, int min ) { |
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193 | mktime( time, year, month, day, hour, min, 0, 0 ); |
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194 | } // Time |
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195 | |
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196 | static inline void ?{}( Time & time, int year, int month, int day, int hour ) { |
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197 | mktime( time, year, month, day, hour, 0, 0, 0 ); |
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198 | } // Time |
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199 | |
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200 | static inline void ?{}( Time & time, int year, int month, int day ) { |
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201 | mktime( time, year, month, day, 0, 0, 0, 0 ); |
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202 | } // Time |
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203 | |
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204 | static inline void ?{}( Time & time, int year, int month ) { |
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205 | mktime( time, year, month, 0, 0, 0, 0, 0 ); |
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206 | } // Time |
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207 | |
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208 | static inline void ?{}( Time & time, int year ) { |
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209 | mktime( time, year, 0, 0, 0, 0, 0, 0 ); |
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210 | } // Time |
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211 | |
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212 | static inline void ?{}( Time & time, timeval t ) with( time ) { |
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213 | tv = (int64_t)t.tv_sec * TIMEGRAN + t.tv_usec * 1000; |
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214 | } // Time |
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215 | |
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216 | static inline void ?{}( Time & time, timespec t ) with( time ) { |
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217 | tv = (int64_t)t.tv_sec * TIMEGRAN + t.tv_nsec; |
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218 | } // Time |
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219 | |
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220 | static inline void ?{}( Time & t, zero_t ) { t.tv = 0; } |
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221 | static inline Time ?=?( Time & t, zero_t ) { return t{ 0 }; } |
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222 | |
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223 | static inline Time ?=?( Time & time, timeval t ) with( time ) { |
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224 | tv = (int64_t)t.tv_sec * TIMEGRAN + t.tv_usec * (TIMEGRAN / 1_000_000LL); |
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225 | return time; |
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226 | } // ?=? |
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227 | |
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228 | static inline Time ?=?( Time & time, timespec t ) with( time ) { |
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229 | tv = (int64_t)t.tv_sec * TIMEGRAN + t.tv_nsec; |
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230 | return time; |
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231 | } // ?=? |
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232 | |
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233 | static inline Time ?+?( Time & lhs, Duration rhs ) { return (Time)@{ lhs.tv + rhs.tv }; } |
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234 | static inline Time ?+?( Duration lhs, Time rhs ) { return rhs + lhs; } |
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235 | static inline Time ?+=?( Time & lhs, Duration rhs ) { lhs = lhs + rhs; return lhs; } |
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236 | |
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237 | static inline Duration ?-?( Time lhs, Time rhs ) { return (Duration)@{ lhs.tv - rhs.tv }; } |
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238 | static inline Time ?-?( Time lhs, Duration rhs ) { return (Time)@{ lhs.tv - rhs.tv }; } |
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239 | static inline Time ?-=?( Time & lhs, Duration rhs ) { lhs = lhs - rhs; return lhs; } |
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240 | static inline _Bool ?==?( Time lhs, Time rhs ) { return lhs.tv == rhs.tv; } |
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241 | static inline _Bool ?!=?( Time lhs, Time rhs ) { return lhs.tv != rhs.tv; } |
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242 | static inline _Bool ?<?( Time lhs, Time rhs ) { return lhs.tv < rhs.tv; } |
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243 | static inline _Bool ?<=?( Time lhs, Time rhs ) { return lhs.tv <= rhs.tv; } |
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244 | static inline _Bool ?>?( Time lhs, Time rhs ) { return lhs.tv > rhs.tv; } |
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245 | static inline _Bool ?>=?( Time lhs, Time rhs ) { return lhs.tv >= rhs.tv; } |
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246 | |
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247 | char * yy_mm_dd( Time time, char * buf ); |
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248 | static inline char * ?`ymd( Time time, char * buf ) { |
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249 | return yy_mm_dd( time, buf ); |
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250 | } // ymd |
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251 | |
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252 | char * mm_dd_yy( Time time, char * buf ); |
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253 | static inline char * ?`mdy( Time time, char * buf ) { |
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254 | return mm_dd_yy( time, buf ); |
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255 | } // mdy |
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256 | |
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257 | char * dd_mm_yy( Time time, char * buf ); |
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258 | static inline char * ?`dmy( Time time, char * buf ) { |
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259 | return dd_mm_yy( time, buf );; |
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260 | } // dmy |
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261 | |
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262 | size_t strftime( char * buf, size_t size, const char * fmt, Time time ); |
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263 | |
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264 | forall( dtype ostype | ostream( ostype ) ) ostype & ?|?( ostype & os, Time time ); |
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265 | |
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266 | //------------------------- timeval (cont) ------------------------- |
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267 | |
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268 | static inline void ?{}( timeval & t, Time time ) with( t, time ) { |
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269 | tv_sec = tv / TIMEGRAN; // seconds |
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270 | tv_usec = tv % TIMEGRAN / (TIMEGRAN / 1_000_000LL); // microseconds |
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271 | } // ?{} |
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272 | |
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273 | //------------------------- timespec (cont) ------------------------- |
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274 | |
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275 | static inline void ?{}( timespec & t, Time time ) with( t, time ) { |
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276 | tv_sec = tv / TIMEGRAN; // seconds |
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277 | tv_nsec = tv % TIMEGRAN; // nanoseconds |
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278 | } // ?{} |
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279 | |
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280 | |
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281 | //######################### Clock ######################### |
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282 | |
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283 | |
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284 | struct Clock { |
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285 | Duration offset; // for virtual clock: contains offset from real-time |
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286 | int clocktype; // implementation only -1 (virtual), CLOCK_REALTIME |
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287 | }; |
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288 | |
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289 | static inline void resetClock( Clock & clk ) with( clk ) { |
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290 | clocktype = CLOCK_REALTIME_COARSE; |
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291 | } // Clock::resetClock |
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292 | |
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293 | static inline void resetClock( Clock & clk, Duration adj ) with( clk ) { |
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294 | clocktype = -1; |
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295 | Duration tz = (timeval){ timezone, 0 }; |
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296 | offset = adj + tz; |
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297 | } // resetClock |
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298 | |
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299 | static inline void ?{}( Clock & clk ) { |
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300 | resetClock( clk ); |
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301 | } // Clock |
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302 | |
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303 | static inline void ?{}( Clock & clk, Duration adj ) { |
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304 | resetClock( clk, adj ); |
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305 | } // Clock |
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306 | |
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307 | static inline Duration getRes() { |
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308 | struct timespec res; |
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309 | clock_getres( CLOCK_REALTIME_COARSE, &res ); |
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310 | return (Duration){ res }; |
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311 | } // getRes |
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312 | |
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313 | static inline Time getTimeNsec() { // with nanoseconds |
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314 | timespec curr; |
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315 | clock_gettime( CLOCK_REALTIME_COARSE, &curr ); |
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316 | return (Time){ curr }; |
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317 | } // getTime |
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318 | |
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319 | static inline Time getTime() { // without nanoseconds |
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320 | timespec curr; |
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321 | clock_gettime( CLOCK_REALTIME_COARSE, &curr ); |
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322 | curr.tv_nsec = 0; |
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323 | return (Time){ curr }; |
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324 | } // getTime |
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325 | |
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326 | static inline Time getTime( Clock & clk ) with( clk ) { |
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327 | return getTime() + offset; |
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328 | } // getTime |
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329 | |
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330 | static inline Time ?()( Clock & clk ) with( clk ) { // alternative syntax |
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331 | return getTime() + offset; |
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332 | } // getTime |
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333 | |
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334 | static inline timeval getTime( Clock & clk ) { |
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335 | return (timeval){ clk() }; |
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336 | } // getTime |
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337 | |
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338 | static inline tm getTime( Clock & clk ) with( clk ) { |
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339 | tm ret; |
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340 | localtime_r( getTime( clk ).tv_sec, &ret ); |
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341 | return ret; |
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342 | } // getTime |
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343 | |
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344 | // Local Variables: // |
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345 | // mode: c // |
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346 | // tab-width: 4 // |
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347 | // End: // |
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