Hi guys, I'm coding a perl script.
I should catch the "exit code" (like $?) of the process.

I'm using IPC::Open3 because I need read the "stdout"
and "stderr" in real-time when the execution is performed.

My trouble is I can't found anyway to catch the "exit code" from "test.pl".
How can I do it?

Thanks in advance for your help.
Fede

The script like something like this:

--- snip snip ---
#!/usr/local/bin/perl

use strict;
use warnings;

use IO::Handle;
use IO::Select;
use IPC::Open3;
use POSIX ":sys_wait_h";

++$|;    # force flush

#+--------------------------------------------------------------------
+---+#
#    Sub: spawn_proc
#         Spawn process
#  Input: (null)
# Return: (null)
#+--------------------------------------------------------------------
+---+#
sub spawn_proc {

    my $cmd = "./test.pl";

    local $SIG{PIPE} = sub { die "pipe broke" };

    my $ref_rfh    = \*RDRFH;
    my $ref_efh    = \*ERRFH;

    my $pid    = open3(\*WTRFH, \*RDRFH, \*ERRFH, $cmd);

    my $sel    = IO::Select->new();

    $ref_rfh->autoflush(1);
    $ref_efh->autoflush(1);

    $sel->add($ref_rfh, $ref_efh);

    print "Executing: $cmd\n";

    while( my @ready = $sel->can_read ) {
        foreach my $fh (@ready) {
            my $line = $fh->getline;

            if($fh->fileno == $ref_rfh->fileno) {
                print "stdout: $line" if($line);
            } elsif ($fh->fileno == $ref_efh->fileno) {
                print "stderr: $line" if($line);
            }

            $sel->remove($fh) if(eof($fh));
        }
    }

close (RDRFH) || die("1 Return: $? | $@ | $!\n");
close (ERRFH) || die("2 Return: $? | $@ | $!\n");
close (WTRFH) || die("3 Return: $? | $@ | $!\n");

print "Done.\n";

}

spawn_proc();

exit(0);
--- snip snip ---
[download]

Edit by castaway - fixed mixed code/pre tags

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