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Syntaxe et mise en oeuvre :
GNU/Linux |
CentOS 4.8 |
i386 |
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Mail::SpamAssassin::Timeout(3pm) |
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Mail::SpamAssassin::Timeout − safe, reliable timeouts in perl
# non-timeout code...
my $t = Mail::SpamAssassin::Timeout->new({ secs => 5 });
$t->run(sub {
# code to run with a 5-second timeout...
});
if ($t->timed_out()) {
# do something...
}
# more non-timeout code...
This module provides a safe, reliable and clean API to provide alarm(2)−based timeouts for perl code.
Note that $SIG{ALRM} is used to provide the timeout, so this will not interrupt out-of-control regular expression matches.
Nested timeouts are supported.
my $t = Mail::SpamAssassin::Timeout−>new({ ... options ... });
Constructor. Options include:
secs => $seconds
timeout, in seconds. Optional; if not specified, no timeouts will be applied.
$t−>run($coderef)
Run a code reference within the currently-defined timeout.
The timeout is as defined by the secs parameter to the constructor.
Returns whatever the subroutine returns, or "undef" on timeout. If the timer times out, "$t−<gt"timed_out()> will return 1.
Time elapsed is not cumulative; multiple runs of "run" will restart the timeout from scratch.
$t−>run_and_catch($coderef)
Run a code reference, as per "$t−<gt"run()>, but also catching any "die()" calls within the code reference.
Returns "undef" if no "die()" call was executed and $@ was unset, or the value of $@ if it was set. (The timeout event doesn’t count as a "die()".)
$t−>timed_out()
Returns 1 if the most recent code executed in "run()" timed out, or "undef" if it did not.
$t−>reset()
If called within a "run()" code reference, causes the current alarm timer to be reset to its starting value.
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Mail::SpamAssassin::Timeout(3pm) | |