IO::Async::Protocol::LineStream(3pm) - Man pages

IO::Async::Protocol::LUsertContributed PerIO::Async::Protocol::LineStream(3pm)

NAME
       "IO::Async::Protocol::LineStream" - stream-based protocols using lines
       of text

SYNOPSIS
       Most likely this class will be subclassed to implement a particular
       network protocol.

          package Net::Async::HelloWorld;

          use strict;
          use warnings;
          use base qw( IO::Async::Protocol::LineStream );

          sub on_read_line
          {
             my $self = shift;
             my ( $line ) = @_;

             if( $line =~ m/^HELLO (.*)/ ) {
                my $name = $1;

                $self->invoke_event( on_hello => $name );
             }
          }

          sub send_hello
          {
             my $self = shift;
             my ( $name ) = @_;

             $self->write_line( "HELLO $name" );
          }

       This small example elides such details as error handling, which a real
       protocol implementation would be likely to contain.

DESCRIPTION
EVENTS
       The following events are invoked, either using subclass methods or CODE
       references in parameters:

   on_read_line $line
       Invoked when a new complete line of input is received.

PARAMETERS
       The following named parameters may be passed to "new" or "configure":

   on_read_line => CODE
       CODE reference for the "on_read_line" event.

METHODS
   write_line
          $lineprotocol->write_line( $text )

       Writes a line of text to the transport stream. The text will have the
       end-of-line marker appended to it; $text should not end with it.

AUTHOR
       Paul Evans <leonerd@leonerd.org.uk>

perl v5.34.0                      2022-08-IO::Async::Protocol::LineStream(3pm)

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