Index: libcfa/src/time =================================================================== --- libcfa/src/time (revision bf71cfdb7285490eee552b461158846f626cc52f) +++ libcfa/src/time (revision bf71cfdb7285490eee552b461158846f626cc52f) @@ -0,0 +1,210 @@ +// +// Cforall Version 1.0.0 Copyright (C) 2018 University of Waterloo +// +// The contents of this file are covered under the licence agreement in the +// file "LICENCE" distributed with Cforall. +// +// time -- +// +// Author : Peter A. Buhr +// Created On : Wed Mar 14 23:18:57 2018 +// Last Modified By : Peter A. Buhr +// Last Modified On : Mon Jul 2 21:28:38 2018 +// Update Count : 641 +// + +#pragma once + +// http://en.cppreference.com/w/cpp/header/chrono +// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0355r5.html#refcc + +#include // timespec +extern "C" { +#include // timeval +} +#include // Duration/Time types + +enum { TIMEGRAN = 1_000_000_000LL }; // nanosecond granularity, except for timeval + +//######################### Duration ######################### + +static inline { + Duration ?=?( Duration & dur, zero_t ) { return dur{ 0 }; } + + Duration +?( Duration rhs ) with( rhs ) { return (Duration)@{ +tv }; } + Duration ?+?( Duration & lhs, Duration rhs ) { return (Duration)@{ lhs.tv + rhs.tv }; } + Duration ?+=?( Duration & lhs, Duration rhs ) { lhs = lhs + rhs; return lhs; } + + Duration -?( Duration rhs ) with( rhs ) { return (Duration)@{ -tv }; } + Duration ?-?( Duration & lhs, Duration rhs ) { return (Duration)@{ lhs.tv - rhs.tv }; } + Duration ?-=?( Duration & lhs, Duration rhs ) { lhs = lhs - rhs; return lhs; } + + Duration ?*?( Duration lhs, int64_t rhs ) { return (Duration)@{ lhs.tv * rhs }; } + Duration ?*?( int64_t lhs, Duration rhs ) { return (Duration)@{ lhs * rhs.tv }; } + Duration ?*=?( Duration & lhs, int64_t rhs ) { lhs = lhs * rhs; return lhs; } + + int64_t ?/?( Duration lhs, Duration rhs ) { return lhs.tv / rhs.tv; } + Duration ?/?( Duration lhs, int64_t rhs ) { return (Duration)@{ lhs.tv / rhs }; } + Duration ?/=?( Duration & lhs, int64_t rhs ) { lhs = lhs / rhs; return lhs; } + double div( Duration lhs, Duration rhs ) { return (double)lhs.tv / (double)rhs.tv; } + + Duration ?%?( Duration lhs, Duration rhs ) { return (Duration)@{ lhs.tv % rhs.tv }; } + Duration ?%=?( Duration & lhs, Duration rhs ) { lhs = lhs % rhs; return lhs; } + + _Bool ?==?( Duration lhs, Duration rhs ) { return lhs.tv == rhs.tv; } + _Bool ?!=?( Duration lhs, Duration rhs ) { return lhs.tv != rhs.tv; } + _Bool ?? ( Duration lhs, Duration rhs ) { return lhs.tv > rhs.tv; } + _Bool ?>=?( Duration lhs, Duration rhs ) { return lhs.tv >= rhs.tv; } + + _Bool ?==?( Duration lhs, zero_t ) { return lhs.tv == 0; } + _Bool ?!=?( Duration lhs, zero_t ) { return lhs.tv != 0; } + _Bool ?? ( Duration lhs, zero_t ) { return lhs.tv > 0; } + _Bool ?>=?( Duration lhs, zero_t ) { return lhs.tv >= 0; } + + Duration abs( Duration rhs ) { return rhs.tv >= 0 ? rhs : -rhs; } + + Duration ?`ns( int64_t nsec ) { return (Duration)@{ nsec }; } + Duration ?`us( int64_t usec ) { return (Duration)@{ usec * (TIMEGRAN / 1_000_000LL) }; } + Duration ?`ms( int64_t msec ) { return (Duration)@{ msec * (TIMEGRAN / 1_000LL) }; } + Duration ?`s( int64_t sec ) { return (Duration)@{ sec * TIMEGRAN }; } + Duration ?`s( double sec ) { return (Duration)@{ sec * TIMEGRAN }; } + Duration ?`m( int64_t min ) { return (Duration)@{ min * (60LL * TIMEGRAN) }; } + Duration ?`m( double min ) { return (Duration)@{ min * (60LL * TIMEGRAN) }; } + Duration ?`h( int64_t hours ) { return (Duration)@{ hours * (60LL * 60LL * TIMEGRAN) }; } + Duration ?`h( double hours ) { return (Duration)@{ hours * (60LL * 60LL * TIMEGRAN) }; } + Duration ?`d( int64_t days ) { return (Duration)@{ days * (24LL * 60LL * 60LL * TIMEGRAN) }; } + Duration ?`d( double days ) { return (Duration)@{ days * (24LL * 60LL * 60LL * TIMEGRAN) }; } + Duration ?`w( int64_t weeks ) { return (Duration)@{ weeks * (7LL * 24LL * 60LL * 60LL * TIMEGRAN) }; } + Duration ?`w( double weeks ) { return (Duration)@{ weeks * (7LL * 24LL * 60LL * 60LL * TIMEGRAN) }; } + + int64_t ?`ns( Duration dur ) { return dur.tv; } + int64_t ?`us( Duration dur ) { return dur.tv / (TIMEGRAN / 1_000_000LL); } + int64_t ?`ms( Duration dur ) { return dur.tv / (TIMEGRAN / 1_000LL); } + int64_t ?`s( Duration dur ) { return dur.tv / TIMEGRAN; } + int64_t ?`m( Duration dur ) { return dur.tv / (60LL * TIMEGRAN); } + int64_t ?`h( Duration dur ) { return dur.tv / (60LL * 60LL * TIMEGRAN); } + int64_t ?`d( Duration dur ) { return dur.tv / (24LL * 60LL * 60LL * TIMEGRAN); } + int64_t ?`w( Duration dur ) { return dur.tv / (7LL * 24LL * 60LL * 60LL * TIMEGRAN); } + + Duration max( Duration lhs, Duration rhs ) { return (lhs.tv < rhs.tv) ? rhs : lhs;} + Duration min( Duration lhs, Duration rhs ) { return !(rhs.tv < lhs.tv) ? lhs : rhs;} +} // distribution + +//######################### C timeval ######################### + +static inline { + void ?{}( timeval & t ) {} + void ?{}( timeval & t, time_t sec, suseconds_t usec ) { t.tv_sec = sec; t.tv_usec = usec; } + void ?{}( timeval & t, time_t sec ) { t{ sec, 0 }; } + void ?{}( timeval & t, zero_t ) { t{ 0, 0 }; } + + timeval ?=?( timeval & t, zero_t ) { return t{ 0 }; } + timeval ?+?( timeval & lhs, timeval rhs ) { return (timeval)@{ lhs.tv_sec + rhs.tv_sec, lhs.tv_usec + rhs.tv_usec }; } + timeval ?-?( timeval & lhs, timeval rhs ) { return (timeval)@{ lhs.tv_sec - rhs.tv_sec, lhs.tv_usec - rhs.tv_usec }; } + _Bool ?==?( timeval lhs, timeval rhs ) { return lhs.tv_sec == rhs.tv_sec && lhs.tv_usec == rhs.tv_usec; } + _Bool ?!=?( timeval lhs, timeval rhs ) { return lhs.tv_sec != rhs.tv_sec || lhs.tv_usec != rhs.tv_usec; } +} // distribution + +//######################### C timespec ######################### + +static inline { + void ?{}( timespec & t ) {} + void ?{}( timespec & t, time_t sec, __syscall_slong_t nsec ) { t.tv_sec = sec; t.tv_nsec = nsec; } + void ?{}( timespec & t, time_t sec ) { t{ sec, 0}; } + void ?{}( timespec & t, zero_t ) { t{ 0, 0 }; } + + timespec ?=?( timespec & t, zero_t ) { return t{ 0 }; } + timespec ?+?( timespec & lhs, timespec rhs ) { return (timespec)@{ lhs.tv_sec + rhs.tv_sec, lhs.tv_nsec + rhs.tv_nsec }; } + timespec ?-?( timespec & lhs, timespec rhs ) { return (timespec)@{ lhs.tv_sec - rhs.tv_sec, lhs.tv_nsec - rhs.tv_nsec }; } + _Bool ?==?( timespec lhs, timespec rhs ) { return lhs.tv_sec == rhs.tv_sec && lhs.tv_nsec == rhs.tv_nsec; } + _Bool ?!=?( timespec lhs, timespec rhs ) { return lhs.tv_sec != rhs.tv_sec || lhs.tv_nsec != rhs.tv_nsec; } +} // distribution + +//######################### C itimerval ######################### + +static inline { + void ?{}( itimerval & itv, Duration alarm ) with( itv ) { + // itimerval contains durations but but uses time data-structure timeval. + it_value{ alarm`s, (alarm % 1`s)`us }; // seconds, microseconds + it_interval{ 0 }; // 0 seconds, 0 microseconds + } // itimerval + + void ?{}( itimerval & itv, Duration alarm, Duration interval ) with( itv ) { + // itimerval contains durations but but uses time data-structure timeval. + it_value{ alarm`s, (alarm % 1`s)`us }; // seconds, microseconds + it_interval{ interval`s, interval`us }; // seconds, microseconds + } // itimerval +} // distribution + +//######################### Time ######################### + +void ?{}( Time & time, int year, int month = 0, int day = 0, int hour = 0, int min = 0, int sec = 0, int nsec = 0 ); +static inline { + Time ?=?( Time & time, zero_t ) { return time{ 0 }; } + + void ?{}( Time & time, timeval t ) with( time ) { tv = (int64_t)t.tv_sec * TIMEGRAN + t.tv_usec * 1000; } + Time ?=?( Time & time, timeval t ) with( time ) { + tv = (int64_t)t.tv_sec * TIMEGRAN + t.tv_usec * (TIMEGRAN / 1_000_000LL); + return time; + } // ?=? + + void ?{}( Time & time, timespec t ) with( time ) { tv = (int64_t)t.tv_sec * TIMEGRAN + t.tv_nsec; } + Time ?=?( Time & time, timespec t ) with( time ) { + tv = (int64_t)t.tv_sec * TIMEGRAN + t.tv_nsec; + return time; + } // ?=? + + Time ?+?( Time & lhs, Duration rhs ) { return (Time)@{ lhs.tv + rhs.tv }; } + Time ?+?( Duration lhs, Time rhs ) { return rhs + lhs; } + Time ?+=?( Time & lhs, Duration rhs ) { lhs = lhs + rhs; return lhs; } + + Duration ?-?( Time lhs, Time rhs ) { return (Duration)@{ lhs.tv - rhs.tv }; } + Time ?-?( Time lhs, Duration rhs ) { return (Time)@{ lhs.tv - rhs.tv }; } + Time ?-=?( Time & lhs, Duration rhs ) { lhs = lhs - rhs; return lhs; } + _Bool ?==?( Time lhs, Time rhs ) { return lhs.tv == rhs.tv; } + _Bool ?!=?( Time lhs, Time rhs ) { return lhs.tv != rhs.tv; } + _Bool ??( Time lhs, Time rhs ) { return lhs.tv > rhs.tv; } + _Bool ?>=?( Time lhs, Time rhs ) { return lhs.tv >= rhs.tv; } +} // distribution + +char * yy_mm_dd( Time time, char * buf ); +static inline char * ?`ymd( Time time, char * buf ) { // short form + return yy_mm_dd( time, buf ); +} // ymd + +char * mm_dd_yy( Time time, char * buf ); +static inline char * ?`mdy( Time time, char * buf ) { // short form + return mm_dd_yy( time, buf ); +} // mdy + +char * dd_mm_yy( Time time, char * buf ); +static inline char * ?`dmy( Time time, char * buf ) { // short form + return dd_mm_yy( time, buf );; +} // dmy + +size_t strftime( char * buf, size_t size, const char * fmt, Time time ); + +//------------------------- timeval (cont) ------------------------- + +static inline void ?{}( timeval & t, Time time ) with( t, time ) { + tv_sec = tv / TIMEGRAN; // seconds + tv_usec = tv % TIMEGRAN / (TIMEGRAN / 1_000_000LL); // microseconds +} // ?{} + +//------------------------- timespec (cont) ------------------------- + +static inline void ?{}( timespec & t, Time time ) with( t, time ) { + tv_sec = tv / TIMEGRAN; // seconds + tv_nsec = tv % TIMEGRAN; // nanoseconds +} // ?{} + +// Local Variables: // +// mode: c // +// tab-width: 4 // +// End: //