.\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35) .\" .\" Standard preamble: .\" ======================================================================== .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. .de Ve \" End verbatim text .ft R .fi .. .\" Set up some character translations and predefined strings. \*(-- will .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left .\" double quote, and \*(R" will give a right double quote. \*(C+ will .\" give a nicer C++. Capital omega is used to do unbreakable dashes and .\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff, .\" nothing in troff, for use with C<>. .tr \(*W- .ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' .ie n \{\ . ds -- \(*W- . ds PI pi . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch . ds L" "" . ds R" "" . ds C` "" . ds C' "" 'br\} .el\{\ . ds -- \|\(em\| . ds PI \(*p . ds L" `` . ds R" '' . ds C` . ds C' 'br\} .\" .\" Escape single quotes in literal strings from groff's Unicode transform. .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" .\" If the F register is >0, we'll generate index entries on stderr for .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index .\" entries marked with X<> in POD. Of course, you'll have to process the .\" output yourself in some meaningful fashion. .\" .\" Avoid warning from groff about undefined register 'F'. .de IX .. .if !\nF .nr F 0 .if \nF>0 \{\ . de IX . tm Index:\\$1\t\\n%\t"\\$2" .. . if !\nF==2 \{\ . nr % 0 . nr F 2 . \} .\} .\" ======================================================================== .\" .IX Title "POE::Component::Resolver::Sidecar 3pm" .TH POE::Component::Resolver::Sidecar 3pm "2018-04-08" "perl v5.26.1" "User Contributed Perl Documentation" .\" For nroff, turn off justification. Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" POE::Component::Resolver::Sidecar \- delegate subprocess to call getaddrinfo() .SH "VERSION" .IX Header "VERSION" version 0.921 .SH "SYNOPSIS" .IX Header "SYNOPSIS" Used internally by POE::Component::Resolver. .SH "DESCRIPTION" .IX Header "DESCRIPTION" POE::Component::Resolver creates subprocesses to call \fIgetaddrinfo()\fR so that the main program doesn't block during that time. .PP The actual \fIgetaddrinfo()\fR calling code is abstracted into this module so it can be run in a separate executable program. This reduces the memory footprint of forking the entire main process for just \&\fIgetaddrinfo()\fR. .PP It's a strong, useful pattern that other POE::Components have implemented before. POE::Quickie does it generically. POE::Component::SimpleDBI and POE::Component::EasyDBI do it so their \&\s-1DBI\s0 subprocesses are relatively lightweight. .SS "main" .IX Subsection "main" The main code to read POE::Component::Resolver requests from \s-1STDIN\s0 and write \fIgetaddrinfo()\fR responses to \s-1STDOUT.\s0 .SH "SEE ALSO" .IX Header "SEE ALSO" POE::Component::Generic is one generic implementation of this pattern. .PP POE::Quickie is another generic implementation of this pattern. .SH "BUGS" .IX Header "BUGS" None known. .SH "LICENSE" .IX Header "LICENSE" Except where otherwise noted, this distribution is Copyright 2011 by Rocco Caputo. All rights reserved. This distribution is free software; you may redistribute it and/or modify it under the same terms as Perl itself.