hello,

I have multiple scripts running at the same time. Each scripts is running in its own windows command prompt instance.

I would like to have a master script that opens all the other scripts, and then collects the info from the other scripts.

I have been looking into using a piped open. The idea is to open each script from the master script with a statement like open JOB1, 'perl job1.pl|'. It kinda works except that I am having issues reading the data. I am trying to use IO::Select to know when there is data available to be read. I would be grateful if someone could look at my code and let me know if I am doing something wrong or if I am going about this the right way.

Thanks!


use IO::Select;

my $read_set = new IO::Select(); #create handle set for reading

open JOB1, 'perl test1.pl|' or die "cannot pipe to perl: $!";
open JOB2, 'perl test3.pl|' or die "cannot pipe to perl: $!";

my $read_set->add(JOB1);
my $read_set->add(JOB2);

while (1) {
    
        my $rh_set = IO::Select->select($read_set, undef, undef, 0);
        foreach my $rh (@$rh_set) {
            my $output = <$rh>;
            print $output2;    
            print "in foreach  $rh\n";
        }

}
    
close JOB1;
close JOB2;

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In reply to communication between programs by earthfriendlyleaf

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