I too have had issues with alarm() on Windows. This is a quick workaround - not very efficient or accurate, but close to the timeout you want. $timeout is number of seconds to run before timing out.

NOTE: I need an "infinite output" .exe so the './test.exe' program just prints numbers 1 .. 100000 to the screen. I set my $timeout for 2 seconds.

use strict;
use warnings;

my $pid = open(my $fileHandler, '-|', "./test.exe" );
my $start = time;
my $timeout = 2;

while (<$fileHandler>) {
    print "$_\r"; # \r to not overrun output screen buffer
    last if ((time - $start) >= $timeout);
}

print "\nTimeout! - Time to kill pid: $pid\n"

[download]

And the output:

VinsWorldcom@C:\Users\VinsWorldcom\tmp> TimeThis test.pl

TimeThis :  Command Line :  test.pl
TimeThis :    Start Time :  Fri Oct 12 10:42:04 2012

56464
Timeout! - Time to kill pid: 4192

TimeThis :  Command Line :  test.pl
TimeThis :    Start Time :  Fri Oct 12 10:42:04 2012
TimeThis :      End Time :  Fri Oct 12 10:42:06 2012
TimeThis :  Elapsed Time :  00:00:01.903

[download]

Of course you could maybe use Time::HiRes to get more accurate.

In reply to Re: Windows run an exe print its output and cut it off after a time by VinsWorldcom
in thread Windows run an exe print its output and cut it off after a time by anshumangoyal

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