NAME

Timeout::Self - Run alarm() at the start of program to timeout run

VERSION

This document describes version 0.020 of Timeout::Self (from Perl distribution Timeout-Self), released on 2020-07-10.

SYNOPSIS

In a script:

# run for at most 30 seconds
use Timeout::Self 30;
# do stuffs

From the command line:

% perl -MTimeout::Self=30 yourscript.pl

DESCRIPTION

This module lets you set a time limit on program execution, by installing a handler in $SIG{ALRM} that simply dies, and then calling alarm() with the specified number of seconds.

Caveat: it doesn't play perfectly nice with programs that fork. While the alarm handler gets cloned to the child process by Perl, the alarm is not set again so the child process will not time out. You can call alarm() again in the child process if you want to timeout the child too.

HOMEPAGE

Please visit the project's homepage at https://metacpan.org/release/Timeout-Self.

SOURCE

Source repository is at https://github.com/perlancar/perl-Timeout-Self.

BUGS

Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=Timeout-Self

When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.

SEE ALSO

Sys::RunUntil can timeout your script by number of clock seconds or CPU seconds. It performs fork() at the beginning of program run.

Timing out a process can also be done by a supervisor process, for example see Proc::Govern, IPC::Run (see timeout()).

AUTHOR

perlancar <perlancar@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2020, 2015 by perlancar@cpan.org.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.