comment on

on second thought..this doesn't work that well with more then one fd open...it hangs on close($fd). Maybe there's an error in my code:

print "I'm $$\n;";
use FileHandle;

$fh = new FileHandle;
$fh1 = new FileHandle;
my $sleep_count = 0;

do {
        $pid = open($fh, "|-");
        unless (defined $pid) {
                warn "cannot fork: $!";
                die "bailing out" if $sleep_count++ > 6;
                sleep 10;
        }
} until defined $pid;
if ($pid) {
        print "I'm master($$) $pid...\n";
} else {
        print "Waiting for commands($$)..\n";
        while (<STDIN>) {
                print "GOT: $_\n"; # child's STDIN is parent's KID
        }
        exit;  # don't forget this
};


do {
        $pid1 = open($fh1, "|-");
        unless (defined $pid1) {
                warn "cannot fork: $!";
                die "bailing out" if $sleep_count++ > 6;
                sleep 10;
        }
} until defined $pid1;
if ($pid1) {
        print "I'm master($$) $pid1...\n";
} else {
        print "Waiting for commands($$)..\n";
        while (<STDIN>) {
                print "GOT: $_\n"; # child's STDIN is parent's KID
        }
        exit;  # don't forget this
};


my (@some_data)=qw[a be ce];
print "($$)PID: $pid\n";
print $fh @some_data;
print "($$) printing done, let's close:\n";
close($fh) || warn "kid exited $?";

print "($$)PID: $pid1\n";
print $fh1 @some_data;
print "($$) printing done, let's close:\n";
close($fh1) || warn "kid exited $?";


print "END FH TEST\n\n\n";
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In reply to Re^3: How to tell a child what to do? by Eyck
in thread How to tell a child what to do? by Eyck

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