After going all around the houses playing with Win32::Process, Win32::Pipe and numerous other things, I finally arrived back at what I'm sure many others already knew. I wonder why they didn't speak up??

IPC::Open3 can do what you want. 

#! perl -slw
use strict;
use IPC::Open3;
$|++;

sub timeout {
    my ($timeout, $output_ref, @cmd ) = @_;

    print "@cmd";

    my ($wtr, $rdr);
    my $pid = open3( $wtr, $rdr, $rdr, @cmd );
    print $pid;
    my $start = time();

    while( <$rdr> ) {
        push @$output_ref, $_;
        if (($start+$timeout) < time() ) {
            kill( 9, $pid) or warn $!;
            return 0; # Timeout. @$output_ref may contain some output.
        }
    }
    return -1; # Successful completion.
}

my @output;
if ( timeout(10, \@output, 'ping', '-t', 'bbc.co.uk') ) {
    print @output;
}
else {
    print "timed out...\n@output";
}

[download]

As coded above, it will capture both STDOUT and STDERR from the child process and return it all to the caller. If you want to ignore the STDERR output use IPC::Open2, if you want the two seperated, it's a fairly trivial change. See the docs for details.

Okay you lot, get your wings on the left, halos on the right. It's one size fits all, and "No!", you can't have a different color.
Pick up your cloud down the end and "Yes" if you get allocated a grey one they are a bit damp under foot, but someone has to get them.
Get used to the wings fast cos its an 8 hour day...unless the Govenor calls for a cyclone or hurricane, in which case 16 hour shifts are mandatory.
Just be grateful that you arrived just as the tornado season finished. Them buggers are real work.

In reply to Re: command execution & timeout in windows by BrowserUk
in thread command execution & timeout in windows by Anonymous Monk

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