Provided by: libcoro-perl_6.540-1_amd64 bug


       Coro::Socket - non-blocking socket-I/O


        use Coro::Socket;

        # listen on an ipv4 socket
        my $socket = new Coro::Socket PeerHost => "localhost",
                                      PeerPort => 'finger';

        # listen on any other type of socket
        my $socket = Coro::Socket->new_from_fh
                            Local  => "/tmp/socket",
                            Type   => SOCK_STREAM,


       This module is an AnyEvent user, you need to make sure that you use and run a supported
       event loop.

       This module implements socket-handles in a coroutine-compatible way, that is, other
       coroutines can run while reads or writes block on the handle. See Coro::Handle, especially
       the note about prefering method calls.


       This module was written to imitate the IO::Socket::INET API, and derive from it. Since
       IO::Socket::INET does not support IPv6, this module does neither.

       Therefore it is not recommended to use Coro::Socket in new code. Instead, use
       AnyEvent::Socket and Coro::Handle, e.g.:

          use Coro;
          use Coro::Handle;
          use AnyEvent::Socket;

          # use tcp_connect from AnyEvent::Socket
          # and call Coro::Handle::unblock on it.

          tcp_connect "", 80, Coro::rouse_cb;
          my $fh = unblock +(Coro::rouse_wait)[0];

          # now we have a perfectly thread-safe socket handle in $fh
          print $fh "GET / HTTP/1.0\015\012\015\012";
          local $/;
          print <$fh>;

       Using "AnyEvent::Socket::tcp_connect" gives you transparent IPv6, multi-homing, SRV-record
       etc. support.

       For listening sockets, use "AnyEvent::Socket::tcp_server".

       $fh = new Coro::Socket param => value, ...
           Create a new non-blocking tcp handle and connect to the given host and port. The
           parameter names and values are mostly the same as for IO::Socket::INET (as ugly as I
           think they are).

           The parameters officially supported currently are: "ReuseAddr", "LocalPort",
           "LocalHost", "PeerPort", "PeerHost", "Listen", "Timeout", "SO_RCVBUF", "SO_SNDBUF".

              $fh = new Coro::Socket PeerHost => "localhost", PeerPort => 'finger';


          Marc A. Lehmann <>