/usr/share/perl5/Child/Link/IPC.pm is in libchild-perl 0.009-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 | package Child::Link::IPC;
use strict;
use warnings;
use Child::Util;
use base 'Child::Link';
add_accessors qw/ipc/;
add_abstract qw/
read_handle
write_handle
/;
sub init {}
sub new {
my $class = shift;
my ( $pid, @shared ) = @_;
my $self = $class->SUPER::new($pid);
$self->init( @shared );
return $self;
}
sub autoflush {
my $self = shift;
my ( $value ) = @_;
my $write = $self->write_handle;
my $selected = select( $write );
$| = $value if @_;
my $out = $|;
select( $selected );
return $out;
}
sub flush {
my $self = shift;
my $orig = $self->autoflush();
$self->autoflush(1);
my $write = $self->write_handle;
$self->autoflush($orig);
}
sub read {
my $self = shift;
my $handle = $self->read_handle;
return <$handle>;
}
sub say {
my $self = shift;
$self->write( map {$_ . $/} @_ );
}
sub write {
my $self = shift;
my $handle = $self->write_handle;
print $handle @_;
}
1;
=head1 NAME
Child::Link::IPC - Base class for process links that provide IPC.
=head1 SEE ALSO
This class inherits from:
=over 4
=item L<Child::Link>
=back
=head1 METHODS
=over 4
=item $proc->new( $pid. @shared )
Constructor
=item $proc->read()
Read a message from the child.
=item $proc->write( @MESSAGES )
Send the messages to the child. works like print, you must add "\n".
=item $proc->say( @MESSAGES )
Send the messages to the child. works like say, adds the seperator for you
(usually "\n").
=item $proc->autoflush( $BOOL )
Turn autoflush on/off for the current processes write handle. This is on by
default.
=item $proc->flush()
Flush the current processes write handle.
=item $proc->ipc()
=item $proc->_ipc( $new )
Accessors for you to use or ignore.
=back
=head1 ABSTRACT METHODS
=over 4
=item $proc->read_handle()
Should return a read handle for reading from the child.
=item $proc->write_handle()
Should return a write handle for writing to the child.
=item $proc->init( @shared )
Called by new during construction
=back
=head1 HISTORY
Most of this was part of L<Parrallel::Runner> intended for use in the L<Fennec>
project. Fennec is being broken into multiple parts, this is one such part.
=head1 FENNEC PROJECT
This module is part of the Fennec project. See L<Fennec> for more details.
Fennec is a project to develop an extendable and powerful testing framework.
Together the tools that make up the Fennec framework provide a potent testing
environment.
The tools provided by Fennec are also useful on their own. Sometimes a tool
created for Fennec is useful outside the greator framework. Such tools are
turned into their own projects. This is one such project.
=over 2
=item L<Fennec> - The core framework
The primary Fennec project that ties them all together.
=back
=head1 AUTHORS
Chad Granum L<exodist7@gmail.com>
=head1 COPYRIGHT
Copyright (C) 2010 Chad Granum
Child is free software; Standard perl licence.
Child is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the license for more details.
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