digitalmars.D - time units and types in phobos
- Ben Hinkle (203/203) Feb 28 2005 Reading the doc for std.socker I noticed it defines timeval. Time units ...
- Kris (2/205) Feb 28 2005
Reading the doc for std.socker I noticed it defines timeval. Time units and
data types are typically hard to standardize. Some functions take
milliseconds, some take micro, some take ints some take longs and some take
timevals (or timespecs, too?). Remembering which takes what is a pain. What
do people think of making a std module (or maybe reusing std.date) for
time-related types and functions? I'm thinking of something along the lines
of the attached module (modified from my locks library) which is based on
Java's TimeUnit:
http://java.sun.com/j2se/1.5.0/docs/api/java/util/concurrent/TimeUnit.html
Any objections to writing up some doc and asking Walter to include in
phobos?
To illustrate the API here are the unittests:
sleep(2,sec);
sleep(toTimeval(30,msec));
assert( toMillis(100,sec) == 100_000 );
assert( toMicros(100,sec) == 100_000_000 );
assert( toNanos(100,sec) == 100_000_000_000 );
assert( toSeconds(100,sec) == 100 );
assert( convert(100,sec,msec) == 100_000 );
assert( toMicros(5_000,nsec) == 5 );
assert( toSeconds(5_000_000,usec) == 5 );
assert( toSeconds(50,usec) == 0 );
assert( toNanos(5_000_000_000_000,sec) == long.max );
timeval tv = toTimeval(100,sec);
assert( tv.seconds == 100 );
assert( tv.microseconds == 0 );
assert( toMillis(tv) == 100_000 );
assert( toMicros(tv) == 100_000_000 );
assert( toNanos(tv) == 100_000_000_000 );
timeval tv2;
tv2.seconds = 5;
tv2.microseconds = 7;
assert( toMicros(tv2) == 5_000_007 );
assert( toMicros(tv2 + tv) == 105_000_007 );
assert( toMicros(tv2 - tv) == -94999993 );
-Ben
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Feb 28 2005
Kris <Kris_member pathlink.com> In article <cvvrdn$dq6$1 digitaldaemon.com>, Ben Hinkle says...Reading the doc for std.socker I noticed it defines timeval. Time units and data types are typically hard to standardize. Some functions take milliseconds, some take micro, some take ints some take longs and some take timevals (or timespecs, too?). Remembering which takes what is a pain. What do people think of making a std module (or maybe reusing std.date) for time-related types and functions? I'm thinking of something along the lines of the attached module (modified from my locks library) which is based on Java's TimeUnit: http://java.sun.com/j2se/1.5.0/docs/api/java/util/concurrent/TimeUnit.html Any objections to writing up some doc and asking Walter to include in phobos?No objection, but there's an equivalent in Mango also.To illustrate the API here are the unittests: sleep(2,sec); sleep(toTimeval(30,msec)); assert( toMillis(100,sec) == 100_000 ); assert( toMicros(100,sec) == 100_000_000 ); assert( toNanos(100,sec) == 100_000_000_000 ); assert( toSeconds(100,sec) == 100 ); assert( convert(100,sec,msec) == 100_000 ); assert( toMicros(5_000,nsec) == 5 ); assert( toSeconds(5_000_000,usec) == 5 ); assert( toSeconds(50,usec) == 0 ); assert( toNanos(5_000_000_000_000,sec) == long.max ); timeval tv = toTimeval(100,sec); assert( tv.seconds == 100 ); assert( tv.microseconds == 0 ); assert( toMillis(tv) == 100_000 ); assert( toMicros(tv) == 100_000_000 ); assert( toNanos(tv) == 100_000_000_000 ); timeval tv2; tv2.seconds = 5; tv2.microseconds = 7; assert( toMicros(tv2) == 5_000_007 ); assert( toMicros(tv2 + tv) == 105_000_007 ); assert( toMicros(tv2 - tv) == -94999993 ); -Ben begin 666 timeunit.d M<F]M(&UE;6)E<G, ;V8 2D-0($I34BTQ-C8-"B J($5X<&5R="!'<F]U<"!A M;F0 <F5L96%S960 =&\ =&AE('!U8FQI8R!D;VUA:6XL(&%S(&5X<&QA:6YE M9"!A= T*("H :'1T<#HO+V-R96%T:79E8V]M;6]N<RYO<F<O;&EC96YS97,O M56YI=#PO='0^(')E<')E<V5N=', =&EM92!D=7)A=&EO;G, 870 82!G:79E M>2!M971H;V1S('1O(&-O;G9E<G0 86-R;W-S('5N:71S+ T*("H 02 \='0^ M5&EM955N:70\+W1T/B!D;V5S(&YO="!M86EN=&%I;B!T:6UE(&EN9F]R;6%T M:6]N+"!B=70 ;VYL>0T*("H :&5L<', ;W)G86YI>F4 86YD('5S92!T:6UE M(%1I;655;FET('L-"B 3F%N;U-E8V]N9', /2 P+ T*("!-:6-R;U-E8V]N M<G1H86YD(&%B8G)E=FEA=&EO;G, 9F]R('1I;64 =6YI=',-"F%L:6%S(%1I M;655;FET+E-E8V]N9', <V5C.PT*86QI87, 5&EM955N:70N36EL;&E396-O M=7 =&%B;&4 9F]R(&-O;G9E<G-I;VX 9F%C=&]R<R J+PT*<')I=F%T92!C M;VYS="!I;G1;5&EM955N:70N;6%X*S%=(&UU;'1I<&QI97)S(#T 6R -"B M=7)A=&EO;BX ($YO=&4 =&AA="!B96-A=7-E('=E(&%R90T*("H 9&EV:61I M;F< =&AE<V4 9&]W;BP =V4 9&]N)W0 :&%V92!T;R!D96%L('=I=& 87-Y M;VYS="!L;VYG6U1I;655;FET+FUA>"LQ72!O=F5R9FQO=W, /2!;( T*(" P M"B\J* T*("H 4&5R9F]R;2!C;VYV97)S:6]N(&)A<V5D(&]N(&=I=F5N(&1E M;'1A(')E<')E<V5N=&EN9R!T:&4-"B J(&1I9F9E<F5N8V4 8F5T=V5E;B!U M;FET<PT*("H 7'!A<F%M(&1E;'1A('1H92!D:69F97)E;F-E(&EN(&EN9&5X M('9A;'5E<R!O9B!S;W5R8V4 86YD('1A<F=E="!U;FET<PT*("H 7'!A<F%M M(&1U<F%T:6]N('1H92!D=7)A=&EO; 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Feb 28 2005