[6ecc079] | 1 | // |
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[2a84d06d] | 2 | // Cforall Version 1.0.0 Copyright (C) 2018 University of Waterloo |
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[6ecc079] | 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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[2a84d06d] | 7 | // time -- |
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[6ecc079] | 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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[2a84d06d] | 12 | // Last Modified On : Tue Mar 27 16:37:37 2018 |
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| 13 | // Update Count : 564 |
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[6ecc079] | 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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[2a84d06d] | 21 | #include <time.h> // timespec |
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[6ecc079] | 22 | extern "C" { |
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[2a84d06d] | 23 | #include <sys/time.h> // timeval |
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[6ecc079] | 24 | } |
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[2a84d06d] | 25 | #include <iostream> // istype/ostype |
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[6ecc079] | 26 | |
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[2a84d06d] | 27 | enum { TIMEGRAN = 1_000_000_000L }; // nanosecond granularity, except for timeval |
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[6ecc079] | 28 | |
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| 29 | |
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[2a84d06d] | 30 | //######################### timeval ######################### |
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[6ecc079] | 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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[2a84d06d] | 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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[6ecc079] | 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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[2a84d06d] | 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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[6ecc079] | 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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[2a84d06d] | 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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[6ecc079] | 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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[2a84d06d] | 112 | static inline Duration ?%?( Duration lhs, Duration rhs ) { return (Duration)@{ lhs.tv % rhs.tv }; } |
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[6ecc079] | 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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[2a84d06d] | 116 | static inline _Bool ?<? ( Duration lhs, Duration rhs ) { return lhs.tv < rhs.tv; } |
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[6ecc079] | 117 | static inline _Bool ?<=?( Duration lhs, Duration rhs ) { return lhs.tv <= rhs.tv; } |
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[2a84d06d] | 118 | static inline _Bool ?>? ( Duration lhs, Duration rhs ) { return lhs.tv > rhs.tv; } |
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[6ecc079] | 119 | static inline _Bool ?>=?( Duration lhs, Duration rhs ) { return lhs.tv >= rhs.tv; } |
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| 120 | |
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[2a84d06d] | 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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[6ecc079] | 127 | |
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[2a84d06d] | 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_000L) }; } |
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| 134 | static inline Duration ?`ms( int64_t msec ) { return (Duration)@{ msec * (TIMEGRAN / 1_000L) }; } |
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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 * (60L * TIMEGRAN) }; } |
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| 138 | static inline Duration ?`m ( double min ) { return (Duration)@{ min * (60L * TIMEGRAN) }; } |
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[6ecc079] | 139 | static inline Duration ?`h ( int64_t hours ) { return (Duration)@{ hours * (3600L * TIMEGRAN) }; } |
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| 140 | static inline Duration ?`h ( double hours ) { return (Duration)@{ hours * (3600L * TIMEGRAN) }; } |
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[2a84d06d] | 141 | static inline Duration ?`d ( int64_t days ) { return (Duration)@{ days * (24L * 3600L * TIMEGRAN) }; } |
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| 142 | static inline Duration ?`d ( double days ) { return (Duration)@{ days * (24L * 3600L * TIMEGRAN) }; } |
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[6ecc079] | 143 | static inline Duration ?`w ( int64_t weeks ) { return (Duration)@{ weeks * (7L * 24L * 3600L * TIMEGRAN) }; } |
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| 144 | static inline Duration ?`f ( int64_t fortnight ) { return (Duration)@{ fortnight * (14L * 24L * 3600L * TIMEGRAN) }; } |
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| 145 | |
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[2a84d06d] | 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_000L); } |
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| 148 | static inline int64_t ?`ms ( Duration dur ) { return dur.tv / (TIMEGRAN / 1_000L); } |
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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 / (60L * TIMEGRAN); } |
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| 151 | static inline int64_t ?`h ( Duration dur ) { return dur.tv / (3600L * TIMEGRAN); } |
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| 152 | static inline int64_t ?`d ( Duration dur ) { return dur.tv / (24L * 3600L * TIMEGRAN); } |
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| 153 | static inline int64_t ?`w ( Duration dur ) { return dur.tv / (7L * 24L * 3600L * TIMEGRAN); } |
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| 154 | static inline int64_t ?`f ( Duration dur ) { return dur.tv / (14L * 24L * 3600L * 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_000L); // 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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[6ecc079] | 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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[2a84d06d] | 178 | void mktime( Time & time, int year, int month, int day, int hour, int min, int sec, int nsec ); |
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[6ecc079] | 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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[2a84d06d] | 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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[6ecc079] | 186 | } // Time |
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| 187 | |
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[2a84d06d] | 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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[6ecc079] | 190 | } // Time |
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| 191 | |
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[2a84d06d] | 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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[6ecc079] | 194 | } // Time |
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| 195 | |
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[2a84d06d] | 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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[6ecc079] | 198 | } // Time |
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| 199 | |
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[2a84d06d] | 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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[6ecc079] | 202 | } // Time |
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| 203 | |
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[2a84d06d] | 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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[6ecc079] | 206 | } // Time |
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| 207 | |
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[2a84d06d] | 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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[6ecc079] | 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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[2a84d06d] | 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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[6ecc079] | 223 | static inline Time ?=?( Time & time, timeval t ) with( time ) { |
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[2a84d06d] | 224 | tv = (int64_t)t.tv_sec * TIMEGRAN + t.tv_usec * (TIMEGRAN / 1_000_000L); |
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[6ecc079] | 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 void ?{}( timeval & t, Time time ) with( time ) { |
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| 234 | t.tv_sec = tv / TIMEGRAN; // seconds |
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| 235 | t.tv_usec = tv % TIMEGRAN / ( TIMEGRAN / 1_000_000L ); // microseconds |
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| 236 | } // ?{} |
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| 237 | |
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| 238 | static inline void ?{}( timespec & t, Time time ) with( time ) { |
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| 239 | t.tv_sec = tv / TIMEGRAN; // seconds |
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| 240 | t.tv_nsec = tv % TIMEGRAN; // nanoseconds |
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| 241 | } // ?{} |
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| 242 | |
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| 243 | static inline Time ?+?( Time & lhs, Duration rhs ) { return (Time)@{ lhs.tv + rhs.tv }; } |
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| 244 | static inline Time ?+?( Duration lhs, Time rhs ) { return rhs + lhs; } |
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| 245 | static inline Time ?+=?( Time & lhs, Duration rhs ) { lhs = lhs + rhs; return lhs; } |
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| 246 | |
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| 247 | static inline Duration ?-?( Time lhs, Time rhs ) { return (Duration)@{ lhs.tv - rhs.tv }; } |
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| 248 | static inline Time ?-?( Time lhs, Duration rhs ) { return (Time)@{ lhs.tv - rhs.tv }; } |
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| 249 | static inline Time ?-=?( Time & lhs, Duration rhs ) { lhs = lhs - rhs; return lhs; } |
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| 250 | static inline _Bool ?==?( Time lhs, Time rhs ) { return lhs.tv == rhs.tv; } |
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| 251 | static inline _Bool ?!=?( Time lhs, Time rhs ) { return lhs.tv != rhs.tv; } |
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| 252 | static inline _Bool ?<?( Time lhs, Time rhs ) { return lhs.tv < rhs.tv; } |
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| 253 | static inline _Bool ?<=?( Time lhs, Time rhs ) { return lhs.tv <= rhs.tv; } |
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| 254 | static inline _Bool ?>?( Time lhs, Time rhs ) { return lhs.tv > rhs.tv; } |
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| 255 | static inline _Bool ?>=?( Time lhs, Time rhs ) { return lhs.tv >= rhs.tv; } |
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| 256 | |
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[2a84d06d] | 257 | char * yy_mm_dd( Time time, char * buf ); |
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| 258 | static inline char * ?`ymd( Time time, char * buf ) { |
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| 259 | return yy_mm_dd( time, buf ); |
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| 260 | } // ymd |
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| 261 | |
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| 262 | char * mm_dd_yy( Time time, char * buf ); |
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| 263 | static inline char * ?`mdy( Time time, char * buf ) { |
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| 264 | return mm_dd_yy( time, buf ); |
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| 265 | } // mdy |
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| 266 | |
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| 267 | char * dd_mm_yy( Time time, char * buf ); |
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| 268 | static inline char * ?`dmy( Time time, char * buf ) { |
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| 269 | return dd_mm_yy( time, buf );; |
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| 270 | } // dmy |
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| 271 | |
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| 272 | size_t strftime( char * buf, size_t size, const char * fmt, Time time ); |
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| 273 | |
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| 274 | forall( dtype ostype | ostream( ostype ) ) ostype & ?|?( ostype & os, Time time ); |
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| 275 | |
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[6ecc079] | 276 | |
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| 277 | //######################### Clock ######################### |
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| 278 | |
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| 279 | |
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| 280 | struct Clock { |
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| 281 | Duration offset; // for virtual clock: contains offset from real-time |
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| 282 | int clocktype; // implementation only -1 (virtual), CLOCK_REALTIME |
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| 283 | }; |
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| 284 | |
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[2a84d06d] | 285 | static inline void resetClock( Clock & clk ) with( clk ) { |
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| 286 | clocktype = CLOCK_REALTIME_COARSE; |
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[6ecc079] | 287 | } // Clock::resetClock |
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| 288 | |
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[2a84d06d] | 289 | static inline void resetClock( Clock & clk, Duration adj ) with( clk ) { |
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[6ecc079] | 290 | clocktype = -1; |
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| 291 | Duration tz = (timeval){ timezone, 0 }; |
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| 292 | offset = adj + tz; |
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| 293 | } // resetClock |
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| 294 | |
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[2a84d06d] | 295 | static inline void ?{}( Clock & clk ) { |
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[6ecc079] | 296 | resetClock( clk ); |
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| 297 | } // Clock |
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| 298 | |
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[2a84d06d] | 299 | static inline void ?{}( Clock & clk, Duration adj ) { |
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[6ecc079] | 300 | resetClock( clk, adj ); |
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| 301 | } // Clock |
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| 302 | |
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[2a84d06d] | 303 | static inline Duration getRes() { |
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[6ecc079] | 304 | struct timespec res; |
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[2a84d06d] | 305 | clock_getres( CLOCK_REALTIME_COARSE, &res ); |
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[6ecc079] | 306 | return (Duration){ res }; |
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| 307 | } // getRes |
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| 308 | |
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[2a84d06d] | 309 | static inline Time getTimeNsec() { // with nanoseconds |
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[6ecc079] | 310 | timespec curr; |
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| 311 | clock_gettime( CLOCK_REALTIME_COARSE, &curr ); |
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| 312 | return (Time){ curr }; |
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| 313 | } // getTime |
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| 314 | |
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[2a84d06d] | 315 | static inline Time getTime() { // without nanoseconds |
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| 316 | timespec curr; |
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| 317 | clock_gettime( CLOCK_REALTIME_COARSE, &curr ); |
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| 318 | curr.tv_nsec = 0; |
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| 319 | return (Time){ curr }; |
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| 320 | } // getTime |
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| 321 | |
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| 322 | static inline Time getTime( Clock & clk ) with( clk ) { |
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[6ecc079] | 323 | return getTime() + offset; |
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| 324 | } // getTime |
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| 325 | |
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[2a84d06d] | 326 | static inline Time ?()( Clock & clk ) with( clk ) { // alternative syntax |
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[6ecc079] | 327 | return getTime() + offset; |
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| 328 | } // getTime |
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| 329 | |
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[2a84d06d] | 330 | static inline timeval getTime( Clock & clk ) { |
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[6ecc079] | 331 | return (timeval){ clk() }; |
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| 332 | } // getTime |
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| 333 | |
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[2a84d06d] | 334 | static inline tm getTime( Clock & clk ) with( clk ) { |
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[6ecc079] | 335 | tm ret; |
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| 336 | localtime_r( getTime( clk ).tv_sec, &ret ); |
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| 337 | return ret; |
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| 338 | } // getTime |
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| 339 | |
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| 340 | // Local Variables: // |
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| 341 | // mode: c // |
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| 342 | // tab-width: 4 // |
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| 343 | // End: // |
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