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<?xml version="1.0" encoding="latin1" ?>
<!DOCTYPE erlref SYSTEM "erlref.dtd">
<erlref>
<header>
<copyright>
<year>2011</year>
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
The contents of this file are subject to the Erlang Public License,
Version 1.1, (the "License"); you may not use this file except in
compliance with the License. You should have received a copy of the
Erlang Public License along with this software. If not, it can be
retrieved online at http://www.erlang.org/.
Software distributed under the License is distributed on an "AS IS"
basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
the License for the specific language governing rights and limitations
under the License.
</legalnotice>
<title>diameter_tcp(3)</title>
<prepared>Anders Svensson</prepared>
<responsible></responsible>
<docno></docno>
<approved></approved>
<checked></checked>
<date></date>
<rev></rev>
<file>diameter_tcp.xml</file>
</header>
<module>diameter_tcp</module>
<modulesummary>Diameter transport over TCP.</modulesummary>
<description>
<p>
This module implements diameter transport over TCP using gen_tcp.
It can be specified as the value of a transport_module option to
<seealso
marker="diameter#add_transport">diameter:add_transport/2</seealso>
and implements the behaviour documented in
<seealso marker="diameter_transport">diameter_transport(3)</seealso>.</p>
<marker id="start"/>
</description>
<!-- ===================================================================== -->
<funcs>
<func>
<name>start({Type, Ref}, Svc, [Opt])
-> {ok, Pid, [LAddr]} | {error, Reason}</name>
<fsummary>Start a transport process.</fsummary>
<type>
<v>Type = connect | accept</v>
<v>Ref = reference()</v>
<v>Svc = #diameter_service{}</v>
<v>Opt = {raddr, ip_address()} | {rport, integer()} | term()</v>
<v>Pid = pid()</v>
<v>LAddr = ip_address()</v>
<v>Reason = term()</v>
</type>
<desc>
<p>
The start function required by <seealso
marker="diameter_transport#start">diameter_transport(3)</seealso>.</p>
<p>
The only diameter_tcp-specific argument is the options list.
Options <c>raddr</c> and <c>rport</c> specify the remote address
and port for a connecting transport and not valid for a listening
transport.
Remaining options are any accepted by gen_tcp:connect/3 for
a connecting transport, or gen_tcp:listen/2 for a listening transport,
with the exception of <c>binary</c>, <c>packet</c> and <c>active</c>.
Also, option <c>port</c> can be specified for a listening transport
to specify the local listening port, the default being the standardized
3868 if unspecified.
Note that option <c>ip</c> specifies the local address.</p>
<p>
If the service specifies more than one Host-IP-Address and
option <c>ip</c> is unspecified then then the
first of the service's addresses is used as the local address.</p>
<p>
The returned local address list has length one.</p>
</desc>
</func>
</funcs>
<!-- ===================================================================== -->
<!-- ===================================================================== -->
<section>
<title>SEE ALSO</title>
<p>
<seealso marker="diameter_transport">diameter_transport(3)</seealso></p>
</section>
</erlref>
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