1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
package IPC::Open2;
use strict;
our ($VERSION, @ISA, @EXPORT);
require 5.000;
require Exporter;
$VERSION = 1.04;
@ISA = qw(Exporter);
@EXPORT = qw(open2);
# &open2: tom christiansen, <tchrist@convex.com>
#
# usage: $pid = open2('rdr', 'wtr', 'some cmd and args');
# or $pid = open2('rdr', 'wtr', 'some', 'cmd', 'and', 'args');
#
# spawn the given $cmd and connect $rdr for
# reading and $wtr for writing. return pid
# of child, or 0 on failure.
#
# WARNING: this is dangerous, as you may block forever
# unless you are very careful.
#
# $wtr is left unbuffered.
#
# abort program if
# rdr or wtr are null
# a system call fails
require IPC::Open3;
sub open2 {
local $Carp::CarpLevel = $Carp::CarpLevel + 1;
return IPC::Open3::_open3('open2', $_[1], $_[0], '>&STDERR', @_[2 .. $#_]);
}
1
|
