diff options
author | Siep Kroonenberg <siepo@cybercomm.nl> | 2011-02-17 17:57:31 +0000 |
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committer | Siep Kroonenberg <siepo@cybercomm.nl> | 2011-02-17 17:57:31 +0000 |
commit | 320d8694fec25ed148613684543b5a0504a046ae (patch) | |
tree | 0ddcf933d3acd3c98a387fa2bf73d0554ca6e50d /Master/tlpkg/tlperl/lib/Time | |
parent | 779e71f16ca01a6244b632b95bdb461fec163b34 (diff) |
New tlperl part XIV
git-svn-id: svn://tug.org/texlive/trunk@21436 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/tlpkg/tlperl/lib/Time')
-rw-r--r-- | Master/tlpkg/tlperl/lib/Time/HiRes.pm | 591 | ||||
-rw-r--r-- | Master/tlpkg/tlperl/lib/Time/Local.pm | 341 | ||||
-rw-r--r-- | Master/tlpkg/tlperl/lib/Time/Piece.pm | 859 | ||||
-rw-r--r-- | Master/tlpkg/tlperl/lib/Time/Seconds.pm | 230 | ||||
-rw-r--r-- | Master/tlpkg/tlperl/lib/Time/gmtime.pm | 91 | ||||
-rw-r--r-- | Master/tlpkg/tlperl/lib/Time/localtime.pm | 86 | ||||
-rw-r--r-- | Master/tlpkg/tlperl/lib/Time/tm.pm | 33 |
7 files changed, 2231 insertions, 0 deletions
diff --git a/Master/tlpkg/tlperl/lib/Time/HiRes.pm b/Master/tlpkg/tlperl/lib/Time/HiRes.pm new file mode 100644 index 00000000000..da4d45a96e8 --- /dev/null +++ b/Master/tlpkg/tlperl/lib/Time/HiRes.pm @@ -0,0 +1,591 @@ +package Time::HiRes; + +use strict; +use vars qw($VERSION $XS_VERSION @ISA @EXPORT @EXPORT_OK $AUTOLOAD); + +require Exporter; +require DynaLoader; + +@ISA = qw(Exporter DynaLoader); + +@EXPORT = qw( ); +@EXPORT_OK = qw (usleep sleep ualarm alarm gettimeofday time tv_interval + getitimer setitimer nanosleep clock_gettime clock_getres + clock clock_nanosleep + CLOCK_HIGHRES CLOCK_MONOTONIC CLOCK_PROCESS_CPUTIME_ID + CLOCK_REALTIME CLOCK_SOFTTIME CLOCK_THREAD_CPUTIME_ID + CLOCK_TIMEOFDAY CLOCKS_PER_SEC + ITIMER_REAL ITIMER_VIRTUAL ITIMER_PROF ITIMER_REALPROF + TIMER_ABSTIME + d_usleep d_ualarm d_gettimeofday d_getitimer d_setitimer + d_nanosleep d_clock_gettime d_clock_getres + d_clock d_clock_nanosleep + stat + ); + +$VERSION = '1.9719'; +$XS_VERSION = $VERSION; +$VERSION = eval $VERSION; + +sub AUTOLOAD { + my $constname; + ($constname = $AUTOLOAD) =~ s/.*:://; + # print "AUTOLOAD: constname = $constname ($AUTOLOAD)\n"; + die "&Time::HiRes::constant not defined" if $constname eq 'constant'; + my ($error, $val) = constant($constname); + # print "AUTOLOAD: error = $error, val = $val\n"; + if ($error) { + my (undef,$file,$line) = caller; + die "$error at $file line $line.\n"; + } + { + no strict 'refs'; + *$AUTOLOAD = sub { $val }; + } + goto &$AUTOLOAD; +} + +sub import { + my $this = shift; + for my $i (@_) { + if (($i eq 'clock_getres' && !&d_clock_getres) || + ($i eq 'clock_gettime' && !&d_clock_gettime) || + ($i eq 'clock_nanosleep' && !&d_clock_nanosleep) || + ($i eq 'clock' && !&d_clock) || + ($i eq 'nanosleep' && !&d_nanosleep) || + ($i eq 'usleep' && !&d_usleep) || + ($i eq 'ualarm' && !&d_ualarm)) { + require Carp; + Carp::croak("Time::HiRes::$i(): unimplemented in this platform"); + } + } + Time::HiRes->export_to_level(1, $this, @_); +} + +bootstrap Time::HiRes; + +# Preloaded methods go here. + +sub tv_interval { + # probably could have been done in C + my ($a, $b) = @_; + $b = [gettimeofday()] unless defined($b); + (${$b}[0] - ${$a}[0]) + ((${$b}[1] - ${$a}[1]) / 1_000_000); +} + +# Autoload methods go after =cut, and are processed by the autosplit program. + +1; +__END__ + +=head1 NAME + +Time::HiRes - High resolution alarm, sleep, gettimeofday, interval timers + +=head1 SYNOPSIS + + use Time::HiRes qw( usleep ualarm gettimeofday tv_interval nanosleep + clock_gettime clock_getres clock_nanosleep clock + stat ); + + usleep ($microseconds); + nanosleep ($nanoseconds); + + ualarm ($microseconds); + ualarm ($microseconds, $interval_microseconds); + + $t0 = [gettimeofday]; + ($seconds, $microseconds) = gettimeofday; + + $elapsed = tv_interval ( $t0, [$seconds, $microseconds]); + $elapsed = tv_interval ( $t0, [gettimeofday]); + $elapsed = tv_interval ( $t0 ); + + use Time::HiRes qw ( time alarm sleep ); + + $now_fractions = time; + sleep ($floating_seconds); + alarm ($floating_seconds); + alarm ($floating_seconds, $floating_interval); + + use Time::HiRes qw( setitimer getitimer ); + + setitimer ($which, $floating_seconds, $floating_interval ); + getitimer ($which); + + use Time::HiRes qw( clock_gettime clock_getres clock_nanosleep + ITIMER_REAL ITIMER_VIRTUAL ITIMER_PROF ITIMER_REALPROF ); + + $realtime = clock_gettime(CLOCK_REALTIME); + $resolution = clock_getres(CLOCK_REALTIME); + + clock_nanosleep(CLOCK_REALTIME, 1.5e9); + clock_nanosleep(CLOCK_REALTIME, time()*1e9 + 10e9, TIMER_ABSTIME); + + my $ticktock = clock(); + + use Time::HiRes qw( stat ); + + my @stat = stat("file"); + my @stat = stat(FH); + +=head1 DESCRIPTION + +The C<Time::HiRes> module implements a Perl interface to the +C<usleep>, C<nanosleep>, C<ualarm>, C<gettimeofday>, and +C<setitimer>/C<getitimer> system calls, in other words, high +resolution time and timers. See the L</EXAMPLES> section below and the +test scripts for usage; see your system documentation for the +description of the underlying C<nanosleep> or C<usleep>, C<ualarm>, +C<gettimeofday>, and C<setitimer>/C<getitimer> calls. + +If your system lacks C<gettimeofday()> or an emulation of it you don't +get C<gettimeofday()> or the one-argument form of C<tv_interval()>. +If your system lacks all of C<nanosleep()>, C<usleep()>, +C<select()>, and C<poll>, you don't get C<Time::HiRes::usleep()>, +C<Time::HiRes::nanosleep()>, or C<Time::HiRes::sleep()>. +If your system lacks both C<ualarm()> and C<setitimer()> you don't get +C<Time::HiRes::ualarm()> or C<Time::HiRes::alarm()>. + +If you try to import an unimplemented function in the C<use> statement +it will fail at compile time. + +If your subsecond sleeping is implemented with C<nanosleep()> instead +of C<usleep()>, you can mix subsecond sleeping with signals since +C<nanosleep()> does not use signals. This, however, is not portable, +and you should first check for the truth value of +C<&Time::HiRes::d_nanosleep> to see whether you have nanosleep, and +then carefully read your C<nanosleep()> C API documentation for any +peculiarities. + +If you are using C<nanosleep> for something else than mixing sleeping +with signals, give some thought to whether Perl is the tool you should +be using for work requiring nanosecond accuracies. + +Remember that unless you are working on a I<hard realtime> system, +any clocks and timers will be imprecise, especially so if you are working +in a pre-emptive multiuser system. Understand the difference between +I<wallclock time> and process time (in UNIX-like systems the sum of +I<user> and I<system> times). Any attempt to sleep for X seconds will +most probably end up sleeping B<more> than that, but don't be surpised +if you end up sleeping slightly B<less>. + +The following functions can be imported from this module. +No functions are exported by default. + +=over 4 + +=item gettimeofday () + +In array context returns a two-element array with the seconds and +microseconds since the epoch. In scalar context returns floating +seconds like C<Time::HiRes::time()> (see below). + +=item usleep ( $useconds ) + +Sleeps for the number of microseconds (millionths of a second) +specified. Returns the number of microseconds actually slept. +Can sleep for more than one second, unlike the C<usleep> system call. +Can also sleep for zero seconds, which often works like a I<thread yield>. +See also C<Time::HiRes::usleep()>, C<Time::HiRes::sleep()>, and +C<Time::HiRes::clock_nanosleep()>. + +Do not expect usleep() to be exact down to one microsecond. + +=item nanosleep ( $nanoseconds ) + +Sleeps for the number of nanoseconds (1e9ths of a second) specified. +Returns the number of nanoseconds actually slept (accurate only to +microseconds, the nearest thousand of them). Can sleep for more than +one second. Can also sleep for zero seconds, which often works like +a I<thread yield>. See also C<Time::HiRes::sleep()>, +C<Time::HiRes::usleep()>, and C<Time::HiRes::clock_nanosleep()>. + +Do not expect nanosleep() to be exact down to one nanosecond. +Getting even accuracy of one thousand nanoseconds is good. + +=item ualarm ( $useconds [, $interval_useconds ] ) + +Issues a C<ualarm> call; the C<$interval_useconds> is optional and +will be zero if unspecified, resulting in C<alarm>-like behaviour. + +Returns the remaining time in the alarm in microseconds, or C<undef> +if an error occurred. + +ualarm(0) will cancel an outstanding ualarm(). + +Note that the interaction between alarms and sleeps is unspecified. + +=item tv_interval + +tv_interval ( $ref_to_gettimeofday [, $ref_to_later_gettimeofday] ) + +Returns the floating seconds between the two times, which should have +been returned by C<gettimeofday()>. If the second argument is omitted, +then the current time is used. + +=item time () + +Returns a floating seconds since the epoch. This function can be +imported, resulting in a nice drop-in replacement for the C<time> +provided with core Perl; see the L</EXAMPLES> below. + +B<NOTE 1>: This higher resolution timer can return values either less +or more than the core C<time()>, depending on whether your platform +rounds the higher resolution timer values up, down, or to the nearest second +to get the core C<time()>, but naturally the difference should be never +more than half a second. See also L</clock_getres>, if available +in your system. + +B<NOTE 2>: Since Sunday, September 9th, 2001 at 01:46:40 AM GMT, when +the C<time()> seconds since epoch rolled over to 1_000_000_000, the +default floating point format of Perl and the seconds since epoch have +conspired to produce an apparent bug: if you print the value of +C<Time::HiRes::time()> you seem to be getting only five decimals, not +six as promised (microseconds). Not to worry, the microseconds are +there (assuming your platform supports such granularity in the first +place). What is going on is that the default floating point format of +Perl only outputs 15 digits. In this case that means ten digits +before the decimal separator and five after. To see the microseconds +you can use either C<printf>/C<sprintf> with C<"%.6f">, or the +C<gettimeofday()> function in list context, which will give you the +seconds and microseconds as two separate values. + +=item sleep ( $floating_seconds ) + +Sleeps for the specified amount of seconds. Returns the number of +seconds actually slept (a floating point value). This function can +be imported, resulting in a nice drop-in replacement for the C<sleep> +provided with perl, see the L</EXAMPLES> below. + +Note that the interaction between alarms and sleeps is unspecified. + +=item alarm ( $floating_seconds [, $interval_floating_seconds ] ) + +The C<SIGALRM> signal is sent after the specified number of seconds. +Implemented using C<setitimer()> if available, C<ualarm()> if not. +The C<$interval_floating_seconds> argument is optional and will be +zero if unspecified, resulting in C<alarm()>-like behaviour. This +function can be imported, resulting in a nice drop-in replacement for +the C<alarm> provided with perl, see the L</EXAMPLES> below. + +Returns the remaining time in the alarm in seconds, or C<undef> +if an error occurred. + +B<NOTE 1>: With some combinations of operating systems and Perl +releases C<SIGALRM> restarts C<select()>, instead of interrupting it. +This means that an C<alarm()> followed by a C<select()> may together +take the sum of the times specified for the the C<alarm()> and the +C<select()>, not just the time of the C<alarm()>. + +Note that the interaction between alarms and sleeps is unspecified. + +=item setitimer ( $which, $floating_seconds [, $interval_floating_seconds ] ) + +Start up an interval timer: after a certain time, a signal ($which) arrives, +and more signals may keep arriving at certain intervals. To disable +an "itimer", use C<$floating_seconds> of zero. If the +C<$interval_floating_seconds> is set to zero (or unspecified), the +timer is disabled B<after> the next delivered signal. + +Use of interval timers may interfere with C<alarm()>, C<sleep()>, +and C<usleep()>. In standard-speak the "interaction is unspecified", +which means that I<anything> may happen: it may work, it may not. + +In scalar context, the remaining time in the timer is returned. + +In list context, both the remaining time and the interval are returned. + +There are usually three or four interval timers (signals) available: the +C<$which> can be C<ITIMER_REAL>, C<ITIMER_VIRTUAL>, C<ITIMER_PROF>, or +C<ITIMER_REALPROF>. Note that which ones are available depends: true +UNIX platforms usually have the first three, but only Solaris seems to +have C<ITIMER_REALPROF> (which is used to profile multithreaded programs). +Win32 unfortunately does not haveinterval timers. + +C<ITIMER_REAL> results in C<alarm()>-like behaviour. Time is counted in +I<real time>; that is, wallclock time. C<SIGALRM> is delivered when +the timer expires. + +C<ITIMER_VIRTUAL> counts time in (process) I<virtual time>; that is, +only when the process is running. In multiprocessor/user/CPU systems +this may be more or less than real or wallclock time. (This time is +also known as the I<user time>.) C<SIGVTALRM> is delivered when the +timer expires. + +C<ITIMER_PROF> counts time when either the process virtual time or when +the operating system is running on behalf of the process (such as I/O). +(This time is also known as the I<system time>.) (The sum of user +time and system time is known as the I<CPU time>.) C<SIGPROF> is +delivered when the timer expires. C<SIGPROF> can interrupt system calls. + +The semantics of interval timers for multithreaded programs are +system-specific, and some systems may support additional interval +timers. For example, it is unspecified which thread gets the signals. +See your C<setitimer()> documentation. + +=item getitimer ( $which ) + +Return the remaining time in the interval timer specified by C<$which>. + +In scalar context, the remaining time is returned. + +In list context, both the remaining time and the interval are returned. +The interval is always what you put in using C<setitimer()>. + +=item clock_gettime ( $which ) + +Return as seconds the current value of the POSIX high resolution timer +specified by C<$which>. All implementations that support POSIX high +resolution timers are supposed to support at least the C<$which> value +of C<CLOCK_REALTIME>, which is supposed to return results close to the +results of C<gettimeofday>, or the number of seconds since 00:00:00:00 +January 1, 1970 Greenwich Mean Time (GMT). Do not assume that +CLOCK_REALTIME is zero, it might be one, or something else. +Another potentially useful (but not available everywhere) value is +C<CLOCK_MONOTONIC>, which guarantees a monotonically increasing time +value (unlike time() or gettimeofday(), which can be adjusted). +See your system documentation for other possibly supported values. + +=item clock_getres ( $which ) + +Return as seconds the resolution of the POSIX high resolution timer +specified by C<$which>. All implementations that support POSIX high +resolution timers are supposed to support at least the C<$which> value +of C<CLOCK_REALTIME>, see L</clock_gettime>. + +=item clock_nanosleep ( $which, $nanoseconds, $flags = 0) + +Sleeps for the number of nanoseconds (1e9ths of a second) specified. +Returns the number of nanoseconds actually slept. The $which is the +"clock id", as with clock_gettime() and clock_getres(). The flags +default to zero but C<TIMER_ABSTIME> can specified (must be exported +explicitly) which means that C<$nanoseconds> is not a time interval +(as is the default) but instead an absolute time. Can sleep for more +than one second. Can also sleep for zero seconds, which often works +like a I<thread yield>. See also C<Time::HiRes::sleep()>, +C<Time::HiRes::usleep()>, and C<Time::HiRes::nanosleep()>. + +Do not expect clock_nanosleep() to be exact down to one nanosecond. +Getting even accuracy of one thousand nanoseconds is good. + +=item clock() + +Return as seconds the I<process time> (user + system time) spent by +the process since the first call to clock() (the definition is B<not> +"since the start of the process", though if you are lucky these times +may be quite close to each other, depending on the system). What this +means is that you probably need to store the result of your first call +to clock(), and subtract that value from the following results of clock(). + +The time returned also includes the process times of the terminated +child processes for which wait() has been executed. This value is +somewhat like the second value returned by the times() of core Perl, +but not necessarily identical. Note that due to backward +compatibility limitations the returned value may wrap around at about +2147 seconds or at about 36 minutes. + +=item stat + +=item stat FH + +=item stat EXPR + +As L<perlfunc/stat> but with the access/modify/change file timestamps +in subsecond resolution, if the operating system and the filesystem +both support such timestamps. To override the standard stat(): + + use Time::HiRes qw(stat); + +Test for the value of &Time::HiRes::d_hires_stat to find out whether +the operating system supports subsecond file timestamps: a value +larger than zero means yes. There are unfortunately no easy +ways to find out whether the filesystem supports such timestamps. +UNIX filesystems often do; NTFS does; FAT doesn't (FAT timestamp +granularity is B<two> seconds). + +A zero return value of &Time::HiRes::d_hires_stat means that +Time::HiRes::stat is a no-op passthrough for CORE::stat(), +and therefore the timestamps will stay integers. The same +thing will happen if the filesystem does not do subsecond timestamps, +even if the &Time::HiRes::d_hires_stat is non-zero. + +In any case do not expect nanosecond resolution, or even a microsecond +resolution. Also note that the modify/access timestamps might have +different resolutions, and that they need not be synchronized, e.g. +if the operations are + + write + stat # t1 + read + stat # t2 + +the access time stamp from t2 need not be greater-than the modify +time stamp from t1: it may be equal or I<less>. + +=back + +=head1 EXAMPLES + + use Time::HiRes qw(usleep ualarm gettimeofday tv_interval); + + $microseconds = 750_000; + usleep($microseconds); + + # signal alarm in 2.5s & every .1s thereafter + ualarm(2_500_000, 100_000); + # cancel that ualarm + ualarm(0); + + # get seconds and microseconds since the epoch + ($s, $usec) = gettimeofday(); + + # measure elapsed time + # (could also do by subtracting 2 gettimeofday return values) + $t0 = [gettimeofday]; + # do bunch of stuff here + $t1 = [gettimeofday]; + # do more stuff here + $t0_t1 = tv_interval $t0, $t1; + + $elapsed = tv_interval ($t0, [gettimeofday]); + $elapsed = tv_interval ($t0); # equivalent code + + # + # replacements for time, alarm and sleep that know about + # floating seconds + # + use Time::HiRes; + $now_fractions = Time::HiRes::time; + Time::HiRes::sleep (2.5); + Time::HiRes::alarm (10.6666666); + + use Time::HiRes qw ( time alarm sleep ); + $now_fractions = time; + sleep (2.5); + alarm (10.6666666); + + # Arm an interval timer to go off first at 10 seconds and + # after that every 2.5 seconds, in process virtual time + + use Time::HiRes qw ( setitimer ITIMER_VIRTUAL time ); + + $SIG{VTALRM} = sub { print time, "\n" }; + setitimer(ITIMER_VIRTUAL, 10, 2.5); + + use Time::HiRes qw( clock_gettime clock_getres CLOCK_REALTIME ); + # Read the POSIX high resolution timer. + my $high = clock_getres(CLOCK_REALTIME); + # But how accurate we can be, really? + my $reso = clock_getres(CLOCK_REALTIME); + + use Time::HiRes qw( clock_nanosleep TIMER_ABSTIME ); + clock_nanosleep(CLOCK_REALTIME, 1e6); + clock_nanosleep(CLOCK_REALTIME, 2e9, TIMER_ABSTIME); + + use Time::HiRes qw( clock ); + my $clock0 = clock(); + ... # Do something. + my $clock1 = clock(); + my $clockd = $clock1 - $clock0; + + use Time::HiRes qw( stat ); + my ($atime, $mtime, $ctime) = (stat("istics"))[8, 9, 10]; + +=head1 C API + +In addition to the perl API described above, a C API is available for +extension writers. The following C functions are available in the +modglobal hash: + + name C prototype + --------------- ---------------------- + Time::NVtime double (*)() + Time::U2time void (*)(pTHX_ UV ret[2]) + +Both functions return equivalent information (like C<gettimeofday>) +but with different representations. The names C<NVtime> and C<U2time> +were selected mainly because they are operating system independent. +(C<gettimeofday> is Unix-centric, though some platforms like Win32 and +VMS have emulations for it.) + +Here is an example of using C<NVtime> from C: + + double (*myNVtime)(); /* Returns -1 on failure. */ + SV **svp = hv_fetch(PL_modglobal, "Time::NVtime", 12, 0); + if (!svp) croak("Time::HiRes is required"); + if (!SvIOK(*svp)) croak("Time::NVtime isn't a function pointer"); + myNVtime = INT2PTR(double(*)(), SvIV(*svp)); + printf("The current time is: %f\n", (*myNVtime)()); + +=head1 DIAGNOSTICS + +=head2 useconds or interval more than ... + +In ualarm() you tried to use number of microseconds or interval (also +in microseconds) more than 1_000_000 and setitimer() is not available +in your system to emulate that case. + +=head2 negative time not invented yet + +You tried to use a negative time argument. + +=head2 internal error: useconds < 0 (unsigned ... signed ...) + +Something went horribly wrong-- the number of microseconds that cannot +become negative just became negative. Maybe your compiler is broken? + +=head2 useconds or uinterval equal to or more than 1000000 + +In some platforms it is not possible to get an alarm with subsecond +resolution and later than one second. + +=head2 unimplemented in this platform + +Some calls simply aren't available, real or emulated, on every platform. + +=head1 CAVEATS + +Notice that the core C<time()> maybe rounding rather than truncating. +What this means is that the core C<time()> may be reporting the time +as one second later than C<gettimeofday()> and C<Time::HiRes::time()>. + +Adjusting the system clock (either manually or by services like ntp) +may cause problems, especially for long running programs that assume +a monotonously increasing time (note that all platforms do not adjust +time as gracefully as UNIX ntp does). For example in Win32 (and derived +platforms like Cygwin and MinGW) the Time::HiRes::time() may temporarily +drift off from the system clock (and the original time()) by up to 0.5 +seconds. Time::HiRes will notice this eventually and recalibrate. +Note that since Time::HiRes 1.77 the clock_gettime(CLOCK_MONOTONIC) +might help in this (in case your system supports CLOCK_MONOTONIC). + +Some systems have APIs but not implementations: for example QNX and Haiku +have the interval timer APIs but not the functionality. + +=head1 SEE ALSO + +Perl modules L<BSD::Resource>, L<Time::TAI64>. + +Your system documentation for C<clock>, C<clock_gettime>, +C<clock_getres>, C<clock_nanosleep>, C<clock_settime>, C<getitimer>, +C<gettimeofday>, C<setitimer>, C<sleep>, C<stat>, C<ualarm>. + +=head1 AUTHORS + +D. Wegscheid <wegscd@whirlpool.com> +R. Schertler <roderick@argon.org> +J. Hietaniemi <jhi@iki.fi> +G. Aas <gisle@aas.no> + +=head1 COPYRIGHT AND LICENSE + +Copyright (c) 1996-2002 Douglas E. Wegscheid. All rights reserved. + +Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008 Jarkko Hietaniemi. +All rights reserved. + +This program is free software; you can redistribute it and/or modify +it under the same terms as Perl itself. + +=cut diff --git a/Master/tlpkg/tlperl/lib/Time/Local.pm b/Master/tlpkg/tlperl/lib/Time/Local.pm new file mode 100644 index 00000000000..96a688d92c4 --- /dev/null +++ b/Master/tlpkg/tlperl/lib/Time/Local.pm @@ -0,0 +1,341 @@ +package Time::Local; + +require Exporter; +use Carp; +use Config; +use strict; + +use vars qw( $VERSION @ISA @EXPORT @EXPORT_OK ); +$VERSION = '1.1901_01'; + +@ISA = qw( Exporter ); +@EXPORT = qw( timegm timelocal ); +@EXPORT_OK = qw( timegm_nocheck timelocal_nocheck ); + +my @MonthDays = ( 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 ); + +# Determine breakpoint for rolling century +my $ThisYear = ( localtime() )[5]; +my $Breakpoint = ( $ThisYear + 50 ) % 100; +my $NextCentury = $ThisYear - $ThisYear % 100; +$NextCentury += 100 if $Breakpoint < 50; +my $Century = $NextCentury - 100; +my $SecOff = 0; + +my ( %Options, %Cheat ); + +use constant SECS_PER_MINUTE => 60; +use constant SECS_PER_HOUR => 3600; +use constant SECS_PER_DAY => 86400; + +# localtime()'s limit is the year 2**31 +my $MaxDay = 365 * (2**31); + +# Determine the EPOC day for this machine +my $Epoc = 0; +if ( $^O eq 'vos' ) { + # work around posix-977 -- VOS doesn't handle dates in the range + # 1970-1980. + $Epoc = _daygm( 0, 0, 0, 1, 0, 70, 4, 0 ); +} +elsif ( $^O eq 'MacOS' ) { + $MaxDay *=2 if $^O eq 'MacOS'; # time_t unsigned ... quick hack? + # MacOS time() is seconds since 1 Jan 1904, localtime + # so we need to calculate an offset to apply later + $Epoc = 693901; + $SecOff = timelocal( localtime(0)) - timelocal( gmtime(0) ) ; + $Epoc += _daygm( gmtime(0) ); +} +else { + $Epoc = _daygm( gmtime(0) ); +} + +%Cheat = (); # clear the cache as epoc has changed + +sub _daygm { + + # This is written in such a byzantine way in order to avoid + # lexical variables and sub calls, for speed + return $_[3] + ( + $Cheat{ pack( 'ss', @_[ 4, 5 ] ) } ||= do { + my $month = ( $_[4] + 10 ) % 12; + my $year = $_[5] + 1900 - int($month / 10); + + ( ( 365 * $year ) + + int( $year / 4 ) + - int( $year / 100 ) + + int( $year / 400 ) + + int( ( ( $month * 306 ) + 5 ) / 10 ) + ) + - $Epoc; + } + ); +} + +sub _timegm { + my $sec = + $SecOff + $_[0] + ( SECS_PER_MINUTE * $_[1] ) + ( SECS_PER_HOUR * $_[2] ); + + return $sec + ( SECS_PER_DAY * &_daygm ); +} + +sub timegm { + my ( $sec, $min, $hour, $mday, $month, $year ) = @_; + + if ( $year >= 1000 ) { + $year -= 1900; + } + elsif ( $year < 100 and $year >= 0 ) { + $year += ( $year > $Breakpoint ) ? $Century : $NextCentury; + } + + unless ( $Options{no_range_check} ) { + croak "Month '$month' out of range 0..11" + if $month > 11 + or $month < 0; + + my $md = $MonthDays[$month]; + ++$md + if $month == 1 && _is_leap_year( $year + 1900 ); + + croak "Day '$mday' out of range 1..$md" if $mday > $md or $mday < 1; + croak "Hour '$hour' out of range 0..23" if $hour > 23 or $hour < 0; + croak "Minute '$min' out of range 0..59" if $min > 59 or $min < 0; + croak "Second '$sec' out of range 0..59" if $sec > 59 or $sec < 0; + } + + my $days = _daygm( undef, undef, undef, $mday, $month, $year ); + + unless ($Options{no_range_check} or abs($days) < $MaxDay) { + my $msg = ''; + $msg .= "Day too big - $days > $MaxDay\n" if $days > $MaxDay; + + $year += 1900; + $msg .= "Cannot handle date ($sec, $min, $hour, $mday, $month, $year)"; + + croak $msg; + } + + return $sec + + $SecOff + + ( SECS_PER_MINUTE * $min ) + + ( SECS_PER_HOUR * $hour ) + + ( SECS_PER_DAY * $days ); +} + +sub _is_leap_year { + return 0 if $_[0] % 4; + return 1 if $_[0] % 100; + return 0 if $_[0] % 400; + + return 1; +} + +sub timegm_nocheck { + local $Options{no_range_check} = 1; + return &timegm; +} + +sub timelocal { + my $ref_t = &timegm; + my $loc_for_ref_t = _timegm( localtime($ref_t) ); + + my $zone_off = $loc_for_ref_t - $ref_t + or return $loc_for_ref_t; + + # Adjust for timezone + my $loc_t = $ref_t - $zone_off; + + # Are we close to a DST change or are we done + my $dst_off = $ref_t - _timegm( localtime($loc_t) ); + + # If this evaluates to true, it means that the value in $loc_t is + # the _second_ hour after a DST change where the local time moves + # backward. + if ( ! $dst_off && + ( ( $ref_t - SECS_PER_HOUR ) - _timegm( localtime( $loc_t - SECS_PER_HOUR ) ) < 0 ) + ) { + return $loc_t - SECS_PER_HOUR; + } + + # Adjust for DST change + $loc_t += $dst_off; + + return $loc_t if $dst_off > 0; + + # If the original date was a non-extent gap in a forward DST jump, + # we should now have the wrong answer - undo the DST adjustment + my ( $s, $m, $h ) = localtime($loc_t); + $loc_t -= $dst_off if $s != $_[0] || $m != $_[1] || $h != $_[2]; + + return $loc_t; +} + +sub timelocal_nocheck { + local $Options{no_range_check} = 1; + return &timelocal; +} + +1; + +__END__ + +=head1 NAME + +Time::Local - efficiently compute time from local and GMT time + +=head1 SYNOPSIS + + $time = timelocal($sec,$min,$hour,$mday,$mon,$year); + $time = timegm($sec,$min,$hour,$mday,$mon,$year); + +=head1 DESCRIPTION + +This module provides functions that are the inverse of built-in perl +functions C<localtime()> and C<gmtime()>. They accept a date as a +six-element array, and return the corresponding C<time(2)> value in +seconds since the system epoch (Midnight, January 1, 1970 GMT on Unix, +for example). This value can be positive or negative, though POSIX +only requires support for positive values, so dates before the +system's epoch may not work on all operating systems. + +It is worth drawing particular attention to the expected ranges for +the values provided. The value for the day of the month is the actual +day (ie 1..31), while the month is the number of months since January +(0..11). This is consistent with the values returned from +C<localtime()> and C<gmtime()>. + +=head1 FUNCTIONS + +=head2 C<timelocal()> and C<timegm()> + +This module exports two functions by default, C<timelocal()> and +C<timegm()>. + +The C<timelocal()> and C<timegm()> functions perform range checking on +the input $sec, $min, $hour, $mday, and $mon values by default. + +=head2 C<timelocal_nocheck()> and C<timegm_nocheck()> + +If you are working with data you know to be valid, you can speed your +code up by using the "nocheck" variants, C<timelocal_nocheck()> and +C<timegm_nocheck()>. These variants must be explicitly imported. + + use Time::Local 'timelocal_nocheck'; + + # The 365th day of 1999 + print scalar localtime timelocal_nocheck 0,0,0,365,0,99; + +If you supply data which is not valid (month 27, second 1,000) the +results will be unpredictable (so don't do that). + +=head2 Year Value Interpretation + +Strictly speaking, the year should be specified in a form consistent +with C<localtime()>, i.e. the offset from 1900. In order to make the +interpretation of the year easier for humans, however, who are more +accustomed to seeing years as two-digit or four-digit values, the +following conventions are followed: + +=over 4 + +=item * + +Years greater than 999 are interpreted as being the actual year, +rather than the offset from 1900. Thus, 1964 would indicate the year +Martin Luther King won the Nobel prize, not the year 3864. + +=item * + +Years in the range 100..999 are interpreted as offset from 1900, so +that 112 indicates 2012. This rule also applies to years less than +zero (but see note below regarding date range). + +=item * + +Years in the range 0..99 are interpreted as shorthand for years in the +rolling "current century," defined as 50 years on either side of the +current year. Thus, today, in 1999, 0 would refer to 2000, and 45 to +2045, but 55 would refer to 1955. Twenty years from now, 55 would +instead refer to 2055. This is messy, but matches the way people +currently think about two digit dates. Whenever possible, use an +absolute four digit year instead. + +=back + +The scheme above allows interpretation of a wide range of dates, +particularly if 4-digit years are used. + +=head2 Ambiguous Local Times (DST) + +Because of DST changes, there are many time zones where the same local +time occurs for two different GMT times on the same day. For example, +in the "Europe/Paris" time zone, the local time of 2001-10-28 02:30:00 +can represent either 2001-10-28 00:30:00 GMT, B<or> 2001-10-28 +01:30:00 GMT. + +When given an ambiguous local time, the timelocal() function should +always return the epoch for the I<earlier> of the two possible GMT +times. + +=head2 Non-Existent Local Times (DST) + +When a DST change causes a locale clock to skip one hour forward, +there will be an hour's worth of local times that don't exist. Again, +for the "Europe/Paris" time zone, the local clock jumped from +2001-03-25 01:59:59 to 2001-03-25 03:00:00. + +If the C<timelocal()> function is given a non-existent local time, it +will simply return an epoch value for the time one hour later. + +=head1 IMPLEMENTATION + +These routines are quite efficient and yet are always guaranteed to +agree with C<localtime()> and C<gmtime()>. We manage this by caching +the start times of any months we've seen before. If we know the start +time of the month, we can always calculate any time within the month. +The start times are calculated using a mathematical formula. Unlike +other algorithms that do multiple calls to C<gmtime()>. + +The C<timelocal()> function is implemented using the same cache. We +just assume that we're translating a GMT time, and then fudge it when +we're done for the timezone and daylight savings arguments. Note that +the timezone is evaluated for each date because countries occasionally +change their official timezones. Assuming that C<localtime()> corrects +for these changes, this routine will also be correct. + +=head1 BUGS + +The whole scheme for interpreting two-digit years can be considered a +bug. + +=head1 SUPPORT + +Support for this module is provided via the datetime@perl.org email +list. See http://lists.perl.org/ for more details. + +Please submit bugs to the CPAN RT system at +http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Time-Local or via email +at bug-time-local@rt.cpan.org. + +=head1 COPYRIGHT + +Copyright (c) 1997-2003 Graham Barr, 2003-2007 David Rolsky. All +rights reserved. This program is free software; you can redistribute +it and/or modify it under the same terms as Perl itself. + +The full text of the license can be found in the LICENSE file included +with this module. + +=head1 AUTHOR + +This module is based on a Perl 4 library, timelocal.pl, that was +included with Perl 4.036, and was most likely written by Tom +Christiansen. + +The current version was written by Graham Barr. + +It is now being maintained separately from the Perl core by Dave +Rolsky, <autarch@urth.org>. + +=cut diff --git a/Master/tlpkg/tlperl/lib/Time/Piece.pm b/Master/tlpkg/tlperl/lib/Time/Piece.pm new file mode 100644 index 00000000000..a7a602fa2ca --- /dev/null +++ b/Master/tlpkg/tlperl/lib/Time/Piece.pm @@ -0,0 +1,859 @@ +# $Id: Piece.pm 82 2009-06-27 13:20:23Z matt $ + +package Time::Piece; + +use strict; + +require Exporter; +require DynaLoader; +use Time::Seconds; +use Carp; +use Time::Local; +#use UNIVERSAL qw(isa); # Commented out for Perl 5.12.0 by JRV to avoid a deprecation warning + +our @ISA = qw(Exporter DynaLoader); + +our @EXPORT = qw( + localtime + gmtime +); + +our %EXPORT_TAGS = ( + ':override' => 'internal', + ); + +our $VERSION = '1.15_01'; + +bootstrap Time::Piece $VERSION; + +my $DATE_SEP = '-'; +my $TIME_SEP = ':'; +my @MON_LIST = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec); +my @FULLMON_LIST = qw(January February March April May June July + August September October November December); +my @DAY_LIST = qw(Sun Mon Tue Wed Thu Fri Sat); +my @FULLDAY_LIST = qw(Sunday Monday Tuesday Wednesday Thursday Friday Saturday); + +use constant 'c_sec' => 0; +use constant 'c_min' => 1; +use constant 'c_hour' => 2; +use constant 'c_mday' => 3; +use constant 'c_mon' => 4; +use constant 'c_year' => 5; +use constant 'c_wday' => 6; +use constant 'c_yday' => 7; +use constant 'c_isdst' => 8; +use constant 'c_epoch' => 9; +use constant 'c_islocal' => 10; + +sub localtime { + unshift @_, __PACKAGE__ unless eval { $_[0]->isa('Time::Piece') }; + my $class = shift; + my $time = shift; + $time = time if (!defined $time); + $class->_mktime($time, 1); +} + +sub gmtime { + unshift @_, __PACKAGE__ unless eval { $_[0]->isa('Time::Piece') }; + my $class = shift; + my $time = shift; + $time = time if (!defined $time); + $class->_mktime($time, 0); +} + +sub new { + my $class = shift; + my ($time) = @_; + + my $self; + + if (defined($time)) { + $self = $class->localtime($time); + } + elsif (ref($class) && $class->isa(__PACKAGE__)) { + $self = $class->_mktime($class->epoch, $class->[c_islocal]); + } + else { + $self = $class->localtime(); + } + + return bless $self, $class; +} + +sub parse { + my $proto = shift; + my $class = ref($proto) || $proto; + my @components; + if (@_ > 1) { + @components = @_; + } + else { + @components = shift =~ /(\d+)$DATE_SEP(\d+)$DATE_SEP(\d+)(?:(?:T|\s+)(\d+)$TIME_SEP(\d+)(?:$TIME_SEP(\d+)))/; + @components = reverse(@components[0..5]); + } + return $class->new(_strftime("%s", @components)); +} + +sub _mktime { + my ($class, $time, $islocal) = @_; + $class = eval { (ref $class) && (ref $class)->isa('Time::Piece') } + ? ref $class + : $class; + if (ref($time)) { + $time->[c_epoch] = undef; + return wantarray ? @$time : bless [@$time, $islocal], $class; + } + _tzset(); + my @time = $islocal ? + CORE::localtime($time) + : + CORE::gmtime($time); + wantarray ? @time : bless [@time, $time, $islocal], $class; +} + +my %_special_exports = ( + localtime => sub { my $c = $_[0]; sub { $c->localtime(@_) } }, + gmtime => sub { my $c = $_[0]; sub { $c->gmtime(@_) } }, +); + +sub export { + my ($class, $to, @methods) = @_; + for my $method (@methods) { + if (exists $_special_exports{$method}) { + no strict 'refs'; + no warnings 'redefine'; + *{$to . "::$method"} = $_special_exports{$method}->($class); + } else { + $class->SUPER::export($to, $method); + } + } +} + +sub import { + # replace CORE::GLOBAL localtime and gmtime if required + my $class = shift; + my %params; + map($params{$_}++,@_,@EXPORT); + if (delete $params{':override'}) { + $class->export('CORE::GLOBAL', keys %params); + } + else { + $class->export((caller)[0], keys %params); + } +} + +## Methods ## + +sub sec { + my $time = shift; + $time->[c_sec]; +} + +*second = \&sec; + +sub min { + my $time = shift; + $time->[c_min]; +} + +*minute = \&min; + +sub hour { + my $time = shift; + $time->[c_hour]; +} + +sub mday { + my $time = shift; + $time->[c_mday]; +} + +*day_of_month = \&mday; + +sub mon { + my $time = shift; + $time->[c_mon] + 1; +} + +sub _mon { + my $time = shift; + $time->[c_mon]; +} + +sub month { + my $time = shift; + if (@_) { + return $_[$time->[c_mon]]; + } + elsif (@MON_LIST) { + return $MON_LIST[$time->[c_mon]]; + } + else { + return $time->strftime('%b'); + } +} + +*monname = \&month; + +sub fullmonth { + my $time = shift; + if (@_) { + return $_[$time->[c_mon]]; + } + elsif (@FULLMON_LIST) { + return $FULLMON_LIST[$time->[c_mon]]; + } + else { + return $time->strftime('%B'); + } +} + +sub year { + my $time = shift; + $time->[c_year] + 1900; +} + +sub _year { + my $time = shift; + $time->[c_year]; +} + +sub yy { + my $time = shift; + my $res = $time->[c_year] % 100; + return $res > 9 ? $res : "0$res"; +} + +sub wday { + my $time = shift; + $time->[c_wday] + 1; +} + +sub _wday { + my $time = shift; + $time->[c_wday]; +} + +*day_of_week = \&_wday; + +sub wdayname { + my $time = shift; + if (@_) { + return $_[$time->[c_wday]]; + } + elsif (@DAY_LIST) { + return $DAY_LIST[$time->[c_wday]]; + } + else { + return $time->strftime('%a'); + } +} + +*day = \&wdayname; + +sub fullday { + my $time = shift; + if (@_) { + return $_[$time->[c_wday]]; + } + elsif (@FULLDAY_LIST) { + return $FULLDAY_LIST[$time->[c_wday]]; + } + else { + return $time->strftime('%A'); + } +} + +sub yday { + my $time = shift; + $time->[c_yday]; +} + +*day_of_year = \&yday; + +sub isdst { + my $time = shift; + $time->[c_isdst]; +} + +*daylight_savings = \&isdst; + +# Thanks to Tony Olekshy <olekshy@cs.ualberta.ca> for this algorithm +sub tzoffset { + my $time = shift; + + return Time::Seconds->new(0) unless $time->[c_islocal]; + + my $epoch = $time->epoch; + + my $j = sub { + + my ($s,$n,$h,$d,$m,$y) = @_; $m += 1; $y += 1900; + + $time->_jd($y, $m, $d, $h, $n, $s); + + }; + + # Compute floating offset in hours. + # + my $delta = 24 * (&$j(CORE::localtime $epoch) - &$j(CORE::gmtime $epoch)); + + # Return value in seconds rounded to nearest minute. + return Time::Seconds->new( int($delta * 60 + ($delta >= 0 ? 0.5 : -0.5)) * 60 ); +} + +sub epoch { + my $time = shift; + if (defined($time->[c_epoch])) { + return $time->[c_epoch]; + } + else { + my $epoch = $time->[c_islocal] ? + timelocal(@{$time}[c_sec .. c_mon], $time->[c_year]+1900) + : + timegm(@{$time}[c_sec .. c_mon], $time->[c_year]+1900); + $time->[c_epoch] = $epoch; + return $epoch; + } +} + +sub hms { + my $time = shift; + my $sep = @_ ? shift(@_) : $TIME_SEP; + sprintf("%02d$sep%02d$sep%02d", $time->[c_hour], $time->[c_min], $time->[c_sec]); +} + +*time = \&hms; + +sub ymd { + my $time = shift; + my $sep = @_ ? shift(@_) : $DATE_SEP; + sprintf("%d$sep%02d$sep%02d", $time->year, $time->mon, $time->[c_mday]); +} + +*date = \&ymd; + +sub mdy { + my $time = shift; + my $sep = @_ ? shift(@_) : $DATE_SEP; + sprintf("%02d$sep%02d$sep%d", $time->mon, $time->[c_mday], $time->year); +} + +sub dmy { + my $time = shift; + my $sep = @_ ? shift(@_) : $DATE_SEP; + sprintf("%02d$sep%02d$sep%d", $time->[c_mday], $time->mon, $time->year); +} + +sub datetime { + my $time = shift; + my %seps = (date => $DATE_SEP, T => 'T', time => $TIME_SEP, @_); + return join($seps{T}, $time->date($seps{date}), $time->time($seps{time})); +} + + + +# Julian Day is always calculated for UT regardless +# of local time +sub julian_day { + my $time = shift; + # Correct for localtime + $time = $time->gmtime( $time->epoch ) if $time->[c_islocal]; + + # Calculate the Julian day itself + my $jd = $time->_jd( $time->year, $time->mon, $time->mday, + $time->hour, $time->min, $time->sec); + + return $jd; +} + +# MJD is defined as JD - 2400000.5 days +sub mjd { + return shift->julian_day - 2_400_000.5; +} + +# Internal calculation of Julian date. Needed here so that +# both tzoffset and mjd/jd methods can share the code +# Algorithm from Hatcher 1984 (QJRAS 25, 53-55), and +# Hughes et al, 1989, MNRAS, 238, 15 +# See: http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1989MNRAS.238.1529H&db_key=AST +# for more details + +sub _jd { + my $self = shift; + my ($y, $m, $d, $h, $n, $s) = @_; + + # Adjust input parameters according to the month + $y = ( $m > 2 ? $y : $y - 1); + $m = ( $m > 2 ? $m - 3 : $m + 9); + + # Calculate the Julian Date (assuming Julian calendar) + my $J = int( 365.25 *( $y + 4712) ) + + int( (30.6 * $m) + 0.5) + + 59 + + $d + - 0.5; + + # Calculate the Gregorian Correction (since we have Gregorian dates) + my $G = 38 - int( 0.75 * int(49+($y/100))); + + # Calculate the actual Julian Date + my $JD = $J + $G; + + # Modify to include hours/mins/secs in floating portion. + return $JD + ($h + ($n + $s / 60) / 60) / 24; +} + +sub week { + my $self = shift; + + my $J = $self->julian_day; + # Julian day is independent of time zone so add on tzoffset + # if we are using local time here since we want the week day + # to reflect the local time rather than UTC + $J += ($self->tzoffset/(24*3600)) if $self->[c_islocal]; + + # Now that we have the Julian day including fractions + # convert it to an integer Julian Day Number using nearest + # int (since the day changes at midday we oconvert all Julian + # dates to following midnight). + $J = int($J+0.5); + + use integer; + my $d4 = ((($J + 31741 - ($J % 7)) % 146097) % 36524) % 1461; + my $L = $d4 / 1460; + my $d1 = (($d4 - $L) % 365) + $L; + return $d1 / 7 + 1; +} + +sub _is_leap_year { + my $year = shift; + return (($year %4 == 0) && !($year % 100 == 0)) || ($year % 400 == 0) + ? 1 : 0; +} + +sub is_leap_year { + my $time = shift; + my $year = $time->year; + return _is_leap_year($year); +} + +my @MON_LAST = qw(31 28 31 30 31 30 31 31 30 31 30 31); + +sub month_last_day { + my $time = shift; + my $year = $time->year; + my $_mon = $time->_mon; + return $MON_LAST[$_mon] + ($_mon == 1 ? _is_leap_year($year) : 0); +} + +sub strftime { + my $time = shift; + my $tzname = $time->[c_islocal] ? '%Z' : 'UTC'; + my $format = @_ ? shift(@_) : "%a, %d %b %Y %H:%M:%S $tzname"; + if (!defined $time->[c_wday]) { + if ($time->[c_islocal]) { + return _strftime($format, CORE::localtime($time->epoch)); + } + else { + return _strftime($format, CORE::gmtime($time->epoch)); + } + } + return _strftime($format, (@$time)[c_sec..c_isdst]); +} + +sub strptime { + my $time = shift; + my $string = shift; + my $format = @_ ? shift(@_) : "%a, %d %b %Y %H:%M:%S %Z"; + my @vals = _strptime($string, $format); +# warn(sprintf("got vals: %d-%d-%d %d:%d:%d\n", reverse(@vals))); + return scalar $time->_mktime(\@vals, (ref($time) ? $time->[c_islocal] : 0)); +} + +sub day_list { + shift if ref($_[0]) && $_[0]->isa(__PACKAGE__); # strip first if called as a method + my @old = @DAY_LIST; + if (@_) { + @DAY_LIST = @_; + } + return @old; +} + +sub mon_list { + shift if ref($_[0]) && $_[0]->isa(__PACKAGE__); # strip first if called as a method + my @old = @MON_LIST; + if (@_) { + @MON_LIST = @_; + } + return @old; +} + +sub time_separator { + shift if ref($_[0]) && $_[0]->isa(__PACKAGE__); + my $old = $TIME_SEP; + if (@_) { + $TIME_SEP = $_[0]; + } + return $old; +} + +sub date_separator { + shift if ref($_[0]) && $_[0]->isa(__PACKAGE__); + my $old = $DATE_SEP; + if (@_) { + $DATE_SEP = $_[0]; + } + return $old; +} + +use overload '""' => \&cdate, + 'cmp' => \&str_compare, + 'fallback' => undef; + +sub cdate { + my $time = shift; + if ($time->[c_islocal]) { + return scalar(CORE::localtime($time->epoch)); + } + else { + return scalar(CORE::gmtime($time->epoch)); + } +} + +sub str_compare { + my ($lhs, $rhs, $reverse) = @_; + if (UNIVERSAL::isa($rhs, 'Time::Piece')) { + $rhs = "$rhs"; + } + return $reverse ? $rhs cmp $lhs->cdate : $lhs->cdate cmp $rhs; +} + +use overload + '-' => \&subtract, + '+' => \&add; + +sub subtract { + my $time = shift; + my $rhs = shift; + if (UNIVERSAL::isa($rhs, 'Time::Seconds')) { + $rhs = $rhs->seconds; + } + + if (shift) + { + # SWAPED is set (so someone tried an expression like NOTDATE - DATE). + # Imitate Perl's standard behavior and return the result as if the + # string $time resolves to was subtracted from NOTDATE. This way, + # classes which override this one and which have a stringify function + # that resolves to something that looks more like a number don't need + # to override this function. + return $rhs - "$time"; + } + + if (UNIVERSAL::isa($rhs, 'Time::Piece')) { + return Time::Seconds->new($time->epoch - $rhs->epoch); + } + else { + # rhs is seconds. + return $time->_mktime(($time->epoch - $rhs), $time->[c_islocal]); + } +} + +sub add { + my $time = shift; + my $rhs = shift; + if (UNIVERSAL::isa($rhs, 'Time::Seconds')) { + $rhs = $rhs->seconds; + } + croak "Invalid rhs of addition: $rhs" if ref($rhs); + + return $time->_mktime(($time->epoch + $rhs), $time->[c_islocal]); +} + +use overload + '<=>' => \&compare; + +sub get_epochs { + my ($lhs, $rhs, $reverse) = @_; + if (!UNIVERSAL::isa($rhs, 'Time::Piece')) { + $rhs = $lhs->new($rhs); + } + if ($reverse) { + return $rhs->epoch, $lhs->epoch; + } + return $lhs->epoch, $rhs->epoch; +} + +sub compare { + my ($lhs, $rhs) = get_epochs(@_); + return $lhs <=> $rhs; +} + +sub add_months { + my ($time, $num_months) = @_; + + croak("add_months requires a number of months") unless defined($num_months); + + my $final_month = $time->_mon + $num_months; + my $num_years = 0; + if ($final_month > 11 || $final_month < 0) { + # these two ops required because we have no POSIX::floor and don't + # want to load POSIX.pm + $num_years = int($final_month / 12); + $num_years-- if ($final_month < 0); + + $final_month = $final_month % 12; + } + + my @vals = _mini_mktime($time->sec, $time->min, $time->hour, + $time->mday, $final_month, $time->year - 1900 + $num_years); +# warn(sprintf("got vals: %d-%d-%d %d:%d:%d\n", reverse(@vals))); + return scalar $time->_mktime(\@vals, $time->[c_islocal]); +} + +sub add_years { + my ($time, $years) = @_; + $time->add_months($years * 12); +} + +1; +__END__ + +=head1 NAME + +Time::Piece - Object Oriented time objects + +=head1 SYNOPSIS + + use Time::Piece; + + my $t = localtime; + print "Time is $t\n"; + print "Year is ", $t->year, "\n"; + +=head1 DESCRIPTION + +This module replaces the standard localtime and gmtime functions with +implementations that return objects. It does so in a backwards +compatible manner, so that using localtime/gmtime in the way documented +in perlfunc will still return what you expect. + +The module actually implements most of an interface described by +Larry Wall on the perl5-porters mailing list here: +http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/2000-01/msg00241.html + +=head1 USAGE + +After importing this module, when you use localtime or gmtime in a scalar +context, rather than getting an ordinary scalar string representing the +date and time, you get a Time::Piece object, whose stringification happens +to produce the same effect as the localtime and gmtime functions. There is +also a new() constructor provided, which is the same as localtime(), except +when passed a Time::Piece object, in which case it's a copy constructor. The +following methods are available on the object: + + $t->sec # also available as $t->second + $t->min # also available as $t->minute + $t->hour # 24 hour + $t->mday # also available as $t->day_of_month + $t->mon # 1 = January + $t->_mon # 0 = January + $t->monname # Feb + $t->month # same as $t->monname + $t->fullmonth # February + $t->year # based at 0 (year 0 AD is, of course 1 BC) + $t->_year # year minus 1900 + $t->yy # 2 digit year + $t->wday # 1 = Sunday + $t->_wday # 0 = Sunday + $t->day_of_week # 0 = Sunday + $t->wdayname # Tue + $t->day # same as wdayname + $t->fullday # Tuesday + $t->yday # also available as $t->day_of_year, 0 = Jan 01 + $t->isdst # also available as $t->daylight_savings + + $t->hms # 12:34:56 + $t->hms(".") # 12.34.56 + $t->time # same as $t->hms + + $t->ymd # 2000-02-29 + $t->date # same as $t->ymd + $t->mdy # 02-29-2000 + $t->mdy("/") # 02/29/2000 + $t->dmy # 29-02-2000 + $t->dmy(".") # 29.02.2000 + $t->datetime # 2000-02-29T12:34:56 (ISO 8601) + $t->cdate # Tue Feb 29 12:34:56 2000 + "$t" # same as $t->cdate + + $t->epoch # seconds since the epoch + $t->tzoffset # timezone offset in a Time::Seconds object + + $t->julian_day # number of days since Julian period began + $t->mjd # modified Julian date (JD-2400000.5 days) + + $t->week # week number (ISO 8601) + + $t->is_leap_year # true if it its + $t->month_last_day # 28-31 + + $t->time_separator($s) # set the default separator (default ":") + $t->date_separator($s) # set the default separator (default "-") + $t->day_list(@days) # set the default weekdays + $t->mon_list(@days) # set the default months + + $t->strftime(FORMAT) # same as POSIX::strftime (without the overhead + # of the full POSIX extension) + $t->strftime() # "Tue, 29 Feb 2000 12:34:56 GMT" + + Time::Piece->strptime(STRING, FORMAT) + # see strptime man page. Creates a new + # Time::Piece object + +=head2 Local Locales + +Both wdayname (day) and monname (month) allow passing in a list to use +to index the name of the days against. This can be useful if you need +to implement some form of localisation without actually installing or +using locales. + + my @days = qw( Dimanche Lundi Merdi Mercredi Jeudi Vendredi Samedi ); + + my $french_day = localtime->day(@days); + +These settings can be overriden globally too: + + Time::Piece::day_list(@days); + +Or for months: + + Time::Piece::mon_list(@months); + +And locally for months: + + print localtime->month(@months); + +=head2 Date Calculations + +It's possible to use simple addition and subtraction of objects: + + use Time::Seconds; + + my $seconds = $t1 - $t2; + $t1 += ONE_DAY; # add 1 day (constant from Time::Seconds) + +The following are valid ($t1 and $t2 are Time::Piece objects): + + $t1 - $t2; # returns Time::Seconds object + $t1 - 42; # returns Time::Piece object + $t1 + 533; # returns Time::Piece object + +However adding a Time::Piece object to another Time::Piece object +will cause a runtime error. + +Note that the first of the above returns a Time::Seconds object, so +while examining the object will print the number of seconds (because +of the overloading), you can also get the number of minutes, hours, +days, weeks and years in that delta, using the Time::Seconds API. + +In addition to adding seconds, there are two APIs for adding months and +years: + + $t->add_months(6); + $t->add_years(5); + +The months and years can be negative for subtractions. Note that there +is some "strange" behaviour when adding and subtracting months at the +ends of months. Generally when the resulting month is shorter than the +starting month then the number of overlap days is added. For example +subtracting a month from 2008-03-31 will not result in 2008-02-31 as this +is an impossible date. Instead you will get 2008-03-02. This appears to +be consistent with other date manipulation tools. + +=head2 Date Comparisons + +Date comparisons are also possible, using the full suite of "<", ">", +"<=", ">=", "<=>", "==" and "!=". + +=head2 Date Parsing + +Time::Piece links to your C library's strptime() function, allowing +you incredibly flexible date parsing routines. For example: + + my $t = Time::Piece->strptime("Sun 3rd Nov, 1943", + "%A %drd %b, %Y"); + + print $t->strftime("%a, %d %b %Y"); + +Outputs: + + Wed, 03 Nov 1943 + +(see, it's even smart enough to fix my obvious date bug) + +For more information see "man strptime", which should be on all unix +systems. + +=head2 YYYY-MM-DDThh:mm:ss + +The ISO 8601 standard defines the date format to be YYYY-MM-DD, and +the time format to be hh:mm:ss (24 hour clock), and if combined, they +should be concatenated with date first and with a capital 'T' in front +of the time. + +=head2 Week Number + +The I<week number> may be an unknown concept to some readers. The ISO +8601 standard defines that weeks begin on a Monday and week 1 of the +year is the week that includes both January 4th and the first Thursday +of the year. In other words, if the first Monday of January is the +2nd, 3rd, or 4th, the preceding days of the January are part of the +last week of the preceding year. Week numbers range from 1 to 53. + +=head2 Global Overriding + +Finally, it's possible to override localtime and gmtime everywhere, by +including the ':override' tag in the import list: + + use Time::Piece ':override'; + +=head1 CAVEATS + +=head2 Setting $ENV{TZ} in Threads on Win32 + +Note that when using perl in the default build configuration on Win32 +(specifically, when perl is built with PERL_IMPLICIT_SYS), each perl +interpreter maintains its own copy of the environment and only the main +interpreter will update the process environment seen by strftime. + +Therefore, if you make changes to $ENV{TZ} from inside a thread other than +the main thread then those changes will not be seen by strftime if you +subsequently call that with the %Z formatting code. You must change $ENV{TZ} +in the main thread to have the desired effect in this case (and you must +also call _tzset() in the main thread to register the environment change). + +Furthermore, remember that this caveat also applies to fork(), which is +emulated by threads on Win32. + +=head1 AUTHOR + +Matt Sergeant, matt@sergeant.org +Jarkko Hietaniemi, jhi@iki.fi (while creating Time::Piece for core perl) + +=head1 License + +This module is free software, you may distribute it under the same terms +as Perl. + +=head1 SEE ALSO + +The excellent Calendar FAQ at http://www.tondering.dk/claus/calendar.html + +=head1 BUGS + +The test harness leaves much to be desired. Patches welcome. + +=cut diff --git a/Master/tlpkg/tlperl/lib/Time/Seconds.pm b/Master/tlpkg/tlperl/lib/Time/Seconds.pm new file mode 100644 index 00000000000..4aac9881cb1 --- /dev/null +++ b/Master/tlpkg/tlperl/lib/Time/Seconds.pm @@ -0,0 +1,230 @@ +# $Id: Seconds.pm 44 2002-09-08 20:51:38Z matt $ + +package Time::Seconds; +use strict; +use vars qw/@EXPORT @EXPORT_OK @ISA/; +# use UNIVERSAL qw(isa); # Commented out for Perl 5.12.0 by JRV to avoid a deprecation warning. + +@ISA = 'Exporter'; + +@EXPORT = qw( + ONE_MINUTE + ONE_HOUR + ONE_DAY + ONE_WEEK + ONE_MONTH + ONE_REAL_MONTH + ONE_YEAR + ONE_REAL_YEAR + ONE_FINANCIAL_MONTH + LEAP_YEAR + NON_LEAP_YEAR + ); + +@EXPORT_OK = qw(cs_sec cs_mon); + +use constant ONE_MINUTE => 60; +use constant ONE_HOUR => 3_600; +use constant ONE_DAY => 86_400; +use constant ONE_WEEK => 604_800; +use constant ONE_MONTH => 2_629_744; # ONE_YEAR / 12 +use constant ONE_REAL_MONTH => '1M'; +use constant ONE_YEAR => 31_556_930; # 365.24225 days +use constant ONE_REAL_YEAR => '1Y'; +use constant ONE_FINANCIAL_MONTH => 2_592_000; # 30 days +use constant LEAP_YEAR => 31_622_400; # 366 * ONE_DAY +use constant NON_LEAP_YEAR => 31_536_000; # 365 * ONE_DAY + +# hacks to make Time::Piece compile once again +use constant cs_sec => 0; +use constant cs_mon => 1; + +use overload + 'fallback' => 'undef', + '0+' => \&seconds, + '""' => \&seconds, + '<=>' => \&compare, + '+' => \&add, + '-' => \&subtract, + '-=' => \&subtract_from, + '+=' => \&add_to, + '=' => \© + +sub new { + my $class = shift; + my ($val) = @_; + $val = 0 unless defined $val; + bless \$val, $class; +} + +sub _get_ovlvals { + my ($lhs, $rhs, $reverse) = @_; + $lhs = $lhs->seconds; + + if (UNIVERSAL::isa($rhs, 'Time::Seconds')) { + $rhs = $rhs->seconds; + } + elsif (ref($rhs)) { + die "Can't use non Seconds object in operator overload"; + } + + if ($reverse) { + return $rhs, $lhs; + } + + return $lhs, $rhs; +} + +sub compare { + my ($lhs, $rhs) = _get_ovlvals(@_); + return $lhs <=> $rhs; +} + +sub add { + my ($lhs, $rhs) = _get_ovlvals(@_); + return Time::Seconds->new($lhs + $rhs); +} + +sub add_to { + my $lhs = shift; + my $rhs = shift; + $rhs = $rhs->seconds if UNIVERSAL::isa($rhs, 'Time::Seconds'); + $$lhs += $rhs; + return $lhs; +} + +sub subtract { + my ($lhs, $rhs) = _get_ovlvals(@_); + return Time::Seconds->new($lhs - $rhs); +} + +sub subtract_from { + my $lhs = shift; + my $rhs = shift; + $rhs = $rhs->seconds if UNIVERSAL::isa($rhs, 'Time::Seconds'); + $$lhs -= $rhs; + return $lhs; +} + +sub copy { + Time::Seconds->new(${$_[0]}); +} + +sub seconds { + my $s = shift; + return $$s; +} + +sub minutes { + my $s = shift; + return $$s / 60; +} + +sub hours { + my $s = shift; + $s->minutes / 60; +} + +sub days { + my $s = shift; + $s->hours / 24; +} + +sub weeks { + my $s = shift; + $s->days / 7; +} + +sub months { + my $s = shift; + $s->days / 30.4368541; +} + +sub financial_months { + my $s = shift; + $s->days / 30; +} + +sub years { + my $s = shift; + $s->days / 365.24225; +} + +1; +__END__ + +=head1 NAME + +Time::Seconds - a simple API to convert seconds to other date values + +=head1 SYNOPSIS + + use Time::Piece; + use Time::Seconds; + + my $t = localtime; + $t += ONE_DAY; + + my $t2 = localtime; + my $s = $t - $t2; + + print "Difference is: ", $s->days, "\n"; + +=head1 DESCRIPTION + +This module is part of the Time::Piece distribution. It allows the user +to find out the number of minutes, hours, days, weeks or years in a given +number of seconds. It is returned by Time::Piece when you delta two +Time::Piece objects. + +Time::Seconds also exports the following constants: + + ONE_DAY + ONE_WEEK + ONE_HOUR + ONE_MINUTE + ONE_MONTH + ONE_YEAR + ONE_FINANCIAL_MONTH + LEAP_YEAR + NON_LEAP_YEAR + +Since perl does not (yet?) support constant objects, these constants are in +seconds only, so you cannot, for example, do this: C<print ONE_WEEK-E<gt>minutes;> + +=head1 METHODS + +The following methods are available: + + my $val = Time::Seconds->new(SECONDS) + $val->seconds; + $val->minutes; + $val->hours; + $val->days; + $val->weeks; + $val->months; + $val->financial_months; # 30 days + $val->years; + +The methods make the assumption that there are 24 hours in a day, 7 days in +a week, 365.24225 days in a year and 12 months in a year. +(from The Calendar FAQ at http://www.tondering.dk/claus/calendar.html) + +=head1 AUTHOR + +Matt Sergeant, matt@sergeant.org + +Tobias Brox, tobiasb@tobiasb.funcom.com + +Bal�zs Szab� (dLux), dlux@kapu.hu + +=head1 LICENSE + +Please see Time::Piece for the license. + +=head1 Bugs + +Currently the methods aren't as efficient as they could be, for reasons of +clarity. This is probably a bad idea. + +=cut diff --git a/Master/tlpkg/tlperl/lib/Time/gmtime.pm b/Master/tlpkg/tlperl/lib/Time/gmtime.pm new file mode 100644 index 00000000000..eb5b371a004 --- /dev/null +++ b/Master/tlpkg/tlperl/lib/Time/gmtime.pm @@ -0,0 +1,91 @@ +package Time::gmtime; +use strict; +use 5.006_001; + +use Time::tm; + +our(@ISA, @EXPORT, @EXPORT_OK, %EXPORT_TAGS, $VERSION); +BEGIN { + use Exporter (); + @ISA = qw(Exporter Time::tm); + @EXPORT = qw(gmtime gmctime); + @EXPORT_OK = qw( + $tm_sec $tm_min $tm_hour $tm_mday + $tm_mon $tm_year $tm_wday $tm_yday + $tm_isdst + ); + %EXPORT_TAGS = ( FIELDS => [ @EXPORT_OK, @EXPORT ] ); + $VERSION = 1.03; +} +use vars @EXPORT_OK; + +sub populate (@) { + return unless @_; + my $tmob = Time::tm->new(); + @$tmob = ( + $tm_sec, $tm_min, $tm_hour, $tm_mday, + $tm_mon, $tm_year, $tm_wday, $tm_yday, + $tm_isdst ) + = @_; + return $tmob; +} + +sub gmtime (;$) { populate CORE::gmtime(@_ ? shift : time)} +sub gmctime (;$) { scalar CORE::gmtime(@_ ? shift : time)} + +1; +__END__ + +=head1 NAME + +Time::gmtime - by-name interface to Perl's built-in gmtime() function + +=head1 SYNOPSIS + + use Time::gmtime; + $gm = gmtime(); + printf "The day in Greenwich is %s\n", + (qw(Sun Mon Tue Wed Thu Fri Sat Sun))[ $gm->wday() ]; + + use Time::gmtime qw(:FIELDS); + gmtime(); + printf "The day in Greenwich is %s\n", + (qw(Sun Mon Tue Wed Thu Fri Sat Sun))[ $tm_wday ]; + + $now = gmctime(); + + use Time::gmtime; + use File::stat; + $date_string = gmctime(stat($file)->mtime); + +=head1 DESCRIPTION + +This module's default exports override the core gmtime() function, +replacing it with a version that returns "Time::tm" objects. +This object has methods that return the similarly named structure field +name from the C's tm structure from F<time.h>; namely sec, min, hour, +mday, mon, year, wday, yday, and isdst. + +You may also import all the structure fields directly into your namespace +as regular variables using the :FIELDS import tag. (Note that this +still overrides your core functions.) Access these fields as variables +named with a preceding C<tm_> in front their method names. Thus, +C<$tm_obj-E<gt>mday()> corresponds to $tm_mday if you import the fields. + +The gmctime() function provides a way of getting at the +scalar sense of the original CORE::gmtime() function. + +To access this functionality without the core overrides, +pass the C<use> an empty import list, and then access +function functions with their full qualified names. +On the other hand, the built-ins are still available +via the C<CORE::> pseudo-package. + +=head1 NOTE + +While this class is currently implemented using the Class::Struct +module to build a struct-like class, you shouldn't rely upon this. + +=head1 AUTHOR + +Tom Christiansen diff --git a/Master/tlpkg/tlperl/lib/Time/localtime.pm b/Master/tlpkg/tlperl/lib/Time/localtime.pm new file mode 100644 index 00000000000..c3d9fb36085 --- /dev/null +++ b/Master/tlpkg/tlperl/lib/Time/localtime.pm @@ -0,0 +1,86 @@ +package Time::localtime; +use strict; +use 5.006_001; + +use Time::tm; + +our(@ISA, @EXPORT, @EXPORT_OK, %EXPORT_TAGS, $VERSION); +BEGIN { + use Exporter (); + @ISA = qw(Exporter Time::tm); + @EXPORT = qw(localtime ctime); + @EXPORT_OK = qw( + $tm_sec $tm_min $tm_hour $tm_mday + $tm_mon $tm_year $tm_wday $tm_yday + $tm_isdst + ); + %EXPORT_TAGS = ( FIELDS => [ @EXPORT_OK, @EXPORT ] ); + $VERSION = 1.02; +} +use vars @EXPORT_OK; + +sub populate (@) { + return unless @_; + my $tmob = Time::tm->new(); + @$tmob = ( + $tm_sec, $tm_min, $tm_hour, $tm_mday, + $tm_mon, $tm_year, $tm_wday, $tm_yday, + $tm_isdst ) + = @_; + return $tmob; +} + +sub localtime (;$) { populate CORE::localtime(@_ ? shift : time)} +sub ctime (;$) { scalar CORE::localtime(@_ ? shift : time) } + +1; + +__END__ + +=head1 NAME + +Time::localtime - by-name interface to Perl's built-in localtime() function + +=head1 SYNOPSIS + + use Time::localtime; + printf "Year is %d\n", localtime->year() + 1900; + + $now = ctime(); + + use Time::localtime; + use File::stat; + $date_string = ctime(stat($file)->mtime); + +=head1 DESCRIPTION + +This module's default exports override the core localtime() function, +replacing it with a version that returns "Time::tm" objects. +This object has methods that return the similarly named structure field +name from the C's tm structure from F<time.h>; namely sec, min, hour, +mday, mon, year, wday, yday, and isdst. + +You may also import all the structure fields directly into your namespace +as regular variables using the :FIELDS import tag. (Note that this still +overrides your core functions.) Access these fields as +variables named with a preceding C<tm_> in front their method names. +Thus, C<$tm_obj-E<gt>mday()> corresponds to $tm_mday if you import +the fields. + +The ctime() function provides a way of getting at the +scalar sense of the original CORE::localtime() function. + +To access this functionality without the core overrides, +pass the C<use> an empty import list, and then access +function functions with their full qualified names. +On the other hand, the built-ins are still available +via the C<CORE::> pseudo-package. + +=head1 NOTE + +While this class is currently implemented using the Class::Struct +module to build a struct-like class, you shouldn't rely upon this. + +=head1 AUTHOR + +Tom Christiansen diff --git a/Master/tlpkg/tlperl/lib/Time/tm.pm b/Master/tlpkg/tlperl/lib/Time/tm.pm new file mode 100644 index 00000000000..2c308ebb411 --- /dev/null +++ b/Master/tlpkg/tlperl/lib/Time/tm.pm @@ -0,0 +1,33 @@ +package Time::tm; +use strict; + +our $VERSION = '1.00'; + +use Class::Struct qw(struct); +struct('Time::tm' => [ + map { $_ => '$' } qw{ sec min hour mday mon year wday yday isdst } +]); + +1; +__END__ + +=head1 NAME + +Time::tm - internal object used by Time::gmtime and Time::localtime + +=head1 SYNOPSIS + +Don't use this module directly. + +=head1 DESCRIPTION + +This module is used internally as a base class by Time::localtime And +Time::gmtime functions. It creates a Time::tm struct object which is +addressable just like's C's tm structure from F<time.h>; namely with sec, +min, hour, mday, mon, year, wday, yday, and isdst. + +This class is an internal interface only. + +=head1 AUTHOR + +Tom Christiansen |