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author | Zefram <zefram@fysh.org> | 2013-08-17 23:47:23 +0100 |
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committer | Zefram <zefram@fysh.org> | 2013-08-17 23:47:52 +0100 |
commit | 0f0eae2c6d98019e82bf4e2a5bad67ab3e4ed1e7 (patch) | |
tree | 6e2f095330e5707ec6bb9ea6446f85768e651af6 /cpan/Time-HiRes/HiRes.pm | |
parent | 9b463e2bd5e63c84519eeea395f522cfb6c71674 (diff) | |
download | perl-0f0eae2c6d98019e82bf4e2a5bad67ab3e4ed1e7.tar.gz |
update Time-HiRes to version 1.9726 from CPAN
Diffstat (limited to 'cpan/Time-HiRes/HiRes.pm')
-rw-r--r-- | cpan/Time-HiRes/HiRes.pm | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/cpan/Time-HiRes/HiRes.pm b/cpan/Time-HiRes/HiRes.pm index 5223ba99e9..cf64bc1fbb 100644 --- a/cpan/Time-HiRes/HiRes.pm +++ b/cpan/Time-HiRes/HiRes.pm @@ -20,10 +20,10 @@ our @EXPORT_OK = qw (usleep sleep ualarm alarm gettimeofday time tv_interval d_usleep d_ualarm d_gettimeofday d_getitimer d_setitimer d_nanosleep d_clock_gettime d_clock_getres d_clock d_clock_nanosleep - stat + stat lstat ); -our $VERSION = '1.9725'; +our $VERSION = '1.9726'; our $XS_VERSION = $VERSION; $VERSION = eval $VERSION; @@ -87,7 +87,7 @@ Time::HiRes - High resolution alarm, sleep, gettimeofday, interval timers use Time::HiRes qw( usleep ualarm gettimeofday tv_interval nanosleep clock_gettime clock_getres clock_nanosleep clock - stat ); + stat lstat ); usleep ($microseconds); nanosleep ($nanoseconds); @@ -125,10 +125,11 @@ Time::HiRes - High resolution alarm, sleep, gettimeofday, interval timers my $ticktock = clock(); - use Time::HiRes qw( stat ); + use Time::HiRes qw( stat lstat ); my @stat = stat("file"); my @stat = stat(FH); + my @stat = lstat("file"); =head1 DESCRIPTION @@ -168,7 +169,7 @@ any clocks and timers will be imprecise, especially so if you are working in a pre-emptive multiuser system. Understand the difference between I<wallclock time> and process time (in UNIX-like systems the sum of I<user> and I<system> times). Any attempt to sleep for X seconds will -most probably end up sleeping B<more> than that, but don't be surpised +most probably end up sleeping B<more> than that, but don't be surprised if you end up sleeping slightly B<less>. The following functions can be imported from this module. @@ -302,7 +303,7 @@ C<$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. +Win32 unfortunately does not have interval 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 @@ -392,7 +393,14 @@ compatibility limitations the returned value may wrap around at about =item stat EXPR -As L<perlfunc/stat> but with the access/modify/change file timestamps +=item lstat + +=item lstat FH + +=item lstat EXPR + +As L<perlfunc/stat> or L<perlfunc/lstat> +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(): @@ -406,7 +414,8 @@ 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(), +Time::HiRes::stat is a no-op passthrough for CORE::stat() +(and likewise for lstat), 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. @@ -476,7 +485,7 @@ time stamp from t1: it may be equal or I<less>. use Time::HiRes qw( clock_gettime clock_getres CLOCK_REALTIME ); # Read the POSIX high resolution timer. - my $high = clock_getres(CLOCK_REALTIME); + my $high = clock_gettime(CLOCK_REALTIME); # But how accurate we can be, really? my $reso = clock_getres(CLOCK_REALTIME); @@ -586,7 +595,7 @@ Copyright (c) 1996-2002 Douglas E. Wegscheid. All rights reserved. Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008 Jarkko Hietaniemi. All rights reserved. -Copyright (C) 2011, 2012 Andrew Main (Zefram) <zefram@fysh.org> +Copyright (C) 2011, 2012, 2013 Andrew Main (Zefram) <zefram@fysh.org> This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. |