X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FObject%2FRemote.pm;h=e68544594c26aabfc482521cf5222ff7910b54ab;hb=993ff858dd2fafe40f9bfcc3cc31b479b70888d6;hp=485821d47c46551b29f40b4024d279923c325627;hpb=624b459bafc411773708e674cf54e1971eb4d231;p=scpubgit%2FObject-Remote.git diff --git a/lib/Object/Remote.pm b/lib/Object/Remote.pm index 485821d..e685445 100644 --- a/lib/Object/Remote.pm +++ b/lib/Object/Remote.pm @@ -4,6 +4,8 @@ use Object::Remote::MiniLoop; use Object::Remote::Handle; use Module::Runtime qw(use_module); +our $VERSION = '0.001001'; # 0.1.1 + sub new::on { my ($class, $on, @args) = @_; my $conn = __PACKAGE__->connect($on); @@ -31,3 +33,124 @@ sub current_loop { } 1; + +=head1 NAME + +Object::Remote - Call methods on objects in other processes or on other hosts + +=head1 SYNOPSIS + +Creating a connection: + + use Object::Remote; + + my $conn = Object::Remote->connect('myserver'); # invokes ssh + +Calling a subroutine: + + my $capture = IPC::System::Simple->can::on($conn, 'capture'); + + warn $capture->('uptime'); + +Using an object: + + my $eval = Eval::WithLexicals->new::on($conn); + + $eval->eval(q{my $x = `uptime`}); + + warn $eval->eval(q{$x}); + +Importantly: 'myserver' only requires perl 5.8+ - no non-core modules need to +be installed on the far side, Object::Remote takes care of it for you! + +=head1 DESCRIPTION + +Object::Remote allows you to create an object in another process - usually +one running on another machine you can connect to via ssh, although there +are other connection mechanisms available. + +The idea here is that in many cases one wants to be able to run a piece of +code on another machine, or perhaps many other machines - but without having +to install anything on the far side. + +=head1 COMPONENTS + +=head2 Object::Remote + +The "main" API, which provides the L method to create a connection +to a remote process/host, L to create an object on a connection, +and L to retrieve a subref over a connection. + +=head2 Object::Remote::Connection + +The object representing a connection, which provides the +L and +L methods that are used by +L and L to return proxies for objects and subroutines +on the far side. + +=head2 Object::Remote::Future + +Code for dealing with asynchronous operations, which provides the +L syntax for calling a possibly +asynchronous method without blocking, and +L and L +to block until an asynchronous call completes or fails. + +=head1 METHODS + +=head2 connect + + my $conn = Object::Remote->connect('-'); # fork()ed connection + + my $conn = Object::Remote->connect('myserver'); # connection over ssh + + my $conn = Object::Remote->connect('user@myserver'); # connection over ssh + + my $conn = Object::Remote->connect('root@'); # connection over sudo + +=head2 new::on + + my $eval = Eval::WithLexicals->new::on($conn); + + my $eval = Eval::WithLexicals->new::on('myserver'); # implicit connect + + my $obj = Some::Class->new::on($conn, %args); # with constructor arguments + +=head2 can::on + + my $hostname = Sys::Hostname->can::on($conn, 'hostname'); + + my $hostname = Sys::Hostname->can::on('myserver', 'hostname'); + +=head1 SUPPORT + +IRC: #web-simple on irc.perl.org + +=head1 AUTHOR + +mst - Matt S. Trout (cpan:MSTROUT) + +=head1 CONTRIBUTORS + +phaylon - Robert Sedlacek (cpan:PHAYLON) + +=head1 SPONSORS + +Parts of this code were paid for by + + Socialflow L + + Shadowcat Systems L + +=head1 COPYRIGHT + +Copyright (c) 2012 the Object::Remote L, L and +L as listed above. + +=head1 LICENSE + +This library is free software and may be distributed under the same terms +as perl itself. + +=cut