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Re^2: open3 buffering in linux vs. os x

by Lexicon (Chaplain)
on Jan 08, 2009 at 22:27 UTC ( #735037=note: print w/replies, xml ) Need Help??

in reply to Re: open3 buffering in linux vs. os x
in thread open3 buffering in linux vs. os x

Thanks! That was exactly what I was looking for. Alas, it didn't work. It blocks until QUIT like before. I suspect ProFit is just being clever, detected that it's not in a terminal, and is running in some kind of script mode.
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Re^3: open3 buffering in linux vs. os x
by zentara (Archbishop) on Jan 08, 2009 at 23:12 UTC
    You might try IO::Pty to fake it out. Here is a simple example, but you might want to google for better ones.
    #!/usr/bin/perl use IO::Handle; use IO::Pty; sub do_cmd() { my $pty = new IO::Pty; defined( my $child = fork ) or die "Can't fork: $!"; if ($child){ $pty->close_slave(); #needed to close return $pty; } POSIX::setsid(); my $slave = $pty->slave; close($pty); STDOUT->fdopen( $slave, '>' ) || die $!; STDERR->fdopen( \*STDOUT, '>' ) || die $!; system("echo This is stdout output from an external program"); exit 0; } my $fh = do_cmd(); while (<$fh>) { print; }

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