NAME
    POEx::ZMQ - Asynchronous ZeroMQ sockets for POE

SYNOPSIS
      # An example ZMQ_ROUTER socket ->
      use POE;
      use POEx::ZMQ;

      POE::Session->create(
        inline_states => +{
          _start => sub {
            # Set up a ROUTER; save our Context for creating other sockets later:
            $_[HEAP]->{ctx} = POEx::ZMQ->context;

            $_[HEAP]->{rtr} = POEx::ZMQ->socket(
              context => $_[HEAP]->{ctx},
              type    => ZMQ_ROUTER,
            );

            $_[HEAP]->{rtr}->start;

            $_[HEAP]->{rtr}->bind( 'tcp://127.0.0.1:1234' );
          },

          zmq_recv_multipart => sub {
            # ROUTER got message from REQ; sender identity is prefixed,
            # parts are available as a List::Objects::WithUtils::Array ->
            my $parts = $_[ARG0];
            my ($id, undef, $content) = $parts->all;

            my $response;
            # ...

            # $_[SENDER] was the ROUTER socket, send a response back:
            $_[KERNEL]->post( $_[SENDER], send_multipart =>
              $id, '', $response
            );
          },
        },
      );

      POE::Kernel->run;

DESCRIPTION
    A POE component providing non-blocking ZeroMQ <http://www.zeromq.org>
    (versions 3.x & 4.x) integration.

    See POEx::ZMQ::Socket for details on using these sockets.

    See the zguide <http://zguide.zeromq.org> for more on using ZeroMQ in
    general.

    Each ZeroMQ socket is an event emitter powered by
    MooX::Role::POE::Emitter; the documentation for that distribution is
    likely to be helpful.

    This is early-development software, as indicated by the "0.x" version
    number. The test suite is incomplete, bugs are sure to be lurking,
    documentation is not yet especially verbose, and the API is not
    completely guaranteed. Issues & pull requests are welcome, of course:
    <http://www.github.com/avenj/poex-zmq>

    If you are not using POE, try ZMQ::FFI for an excellent loop-agnostic
    ZeroMQ implementation.

  import
    Importing this package brings in the full set of POEx::ZMQ::Constants,
    and ensures POEx::ZMQ::Socket is loaded.

   context
      my $ctx = POEx::ZMQ->context(max_sockets => 512);

    Returns a new POEx::ZMQ::FFI::Context. @_ is passed through.

    The context object should be shared between sockets belonging to the
    same process; a forked child process should create a new context with
    its own set of sockets.

   socket
      my $sock = POEx::ZMQ->socket(context => $ctx, type => ZMQ_ROUTER);

    Returns a new POEx::ZMQ::Socket. @_ is passed through.

AUTHOR
    Jon Portnoy <avenj@cobaltirc.org>

    Significant portions of the POEx::ZMQ::FFI backend are inspired by or
    derived from ZMQ::FFI (version 0.14) by Dylan Cali (CPAN: CALID).

    Licensed under the same terms as Perl.