megaco_udp

MODULE

megaco_udp

MODULE SUMMARY

Interface module to UDP transport protocol for Megaco/H.248.

DESCRIPTION

This module contains the public interface to the UDP/IP version transport protocol for Megaco/H.248.

EXPORTS

start_transport() -> {ok, TransportRef}

Types:
TransportRef = pid()

This function is used for starting the UDP/IP transport service. Use exit(TransportRef, Reason) to stop the transport service.

open(TransportRef, OptionList) -> {ok, Handle, ControlPid} | {error, Reason}

Types:
TransportRef = pid() | regname()
OptionList = [Option]
Option = {port, integer()} |{options, list()} |{receive_handle, term()}
Handle = socket_handle()
ControlPid = pid()
Reason = term()

This function is used for open an UDP/IP socket.

close(Handle, Msg) -> ok

Types:
Handle = socket_handle()
Msg

This function is used for closing an active UDP socket.

socket(Handle) -> Socket

Types:
Handle = socket_handle()
Socket = inet_socket()

This function is used to convert a socket_handle() to a inet_socket(). inet_socket() is a plain socket, see the inet module for more info.

create_send_handle(Handle, Host, Port) -> send_handle()

Types:
Handle = socket_handle()
Host = {A,B,C,D} | string()
Port = integer()

Creates a send handle from a transport handle. The send handle is intended to be used by megaco_udp:send_message/2.

send_message(SendHandle, Msg) -> ok

Types:
SendHandle = send_handle()
Message = binary() | iolist()

Sends a message on a socket. The send handle is obtained by megaco_udp:create_send_handle/3

block(Handle) -> ok

Types:
Handle = socket_handle()

Stop receiving incoming messages on the socket.

unblock(Handle) -> ok

Types:
Handle = socket_handle()

Starting to receive incoming messages from the socket again.

AUTHORS

Lars Thorsén - support@erlang.ericsson.se