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package timeout;
use strict;
use warnings;
use Exporter qw(import);
our @EXPORT_OK = qw(run_timeout);
sub run_timeout {
my ($command, $timeout) = @_;
my $status;
my $pid = fork();
local $SIG{CHLD} = sub {};
if ($pid) {
local $SIG{ALRM} = sub {
kill 'KILL', $pid;
};
alarm $timeout;
waitpid $pid, 0;
$status = $?;
alarm 0 if $timeout;
} elsif (defined $pid) {
# child, does not return
exec @$command;
} else {
die $!;
}
return wantarray ? ($status, $pid) : $status;
}
1;
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