Every - return true every N cycles or S seconds
print_stats() if every(20); # every 20 cycles
print_times() if every(seconds => 5); # every 5 or more seconds
Returns true every $number times it's called, or every time $number seconds have
elapsed since the last time it was called.
The "every()" function keeps track of where it was called by line,
even if you call it twice on the same line, e.g.
print "hello" if every(5) or every(6);
The "every()" function will use the Devel::Callsite module to find the
opcode and interpreter context (both unique numbers).
The optional @id is a list of arguments that compose a unique identifier. In
other words, "every(100, 'x')" will run its 100 cycles independently
of "every(100, 'x', 'y')".
Returns true when the conditions (cycles or seconds elapsed) are met. The first
cycle doesn't count (so e.g. "every(100)" will be true at 100, 200,
Thanks to Dr.Ruud on comp.lang.perl.misc for helping with this idea, and to
Jerry Hedden for cleaning it up. Thanks to Ben Morrow for getting
Devel::Callsite started, which module is essential to Every.
Thanks to Jerrad Pierce and ikegami for the bug reports and help.
Copyright 2008, Ted Zlatanov (Теодор
Златанов). All Rights
Reserved. This module can be redistributed under the same terms as Perl
Ted Zlatanov <email@example.com>