lib/megaco/doc/src/megaco_transport_mechanisms.xml


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<?xml version="1.0" encoding="latin1" ?>
<!DOCTYPE chapter SYSTEM "chapter.dtd">

<chapter>
  <header>
    <copyright>
      <year>2000</year><year>2009</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>Transport mechanisms</title>
    <prepared>H&aring;kan Mattsson</prepared>
    <responsible>H&aring;kan Mattsson</responsible>
    <docno></docno>
    <approved>H&aring;kan Mattsson</approved>
    <checked></checked>
    <date>2007-06-15</date>
    <rev>%VSN%</rev>
    <file>megaco_transport_mechanisms.xml</file>
  </header>

  <section>
    <title>Callback interface</title>
    <p>The callback interface of the transport module contains several
      functions. Some of which are mandatory while others are only
      optional: </p>
    <list type="bulleted">
      <item>
        <p><c><![CDATA[send_message]]></c> - Send a message. <em>Mandatory</em></p>
      </item>
      <item>
        <p><c><![CDATA[block]]></c> - Block the transport. <em>Optional</em></p>
        <p>This function is usefull for flow control.</p>
      </item>
      <item>
        <p><c><![CDATA[unblock]]></c> - Unblock the transport. <em>Optional</em></p>
      </item>
    </list>
    <p>For more detail, see the 
      <seealso marker="megaco_transport">megaco_transport</seealso>
      behaviour definition.</p>
  </section>

  <section>
    <title>Examples</title>
    <p>The Megaco/H.248 application contains implementations
      for the two protocols specified by the Megaco/H.248 standard;
      UDP, see <seealso marker="megaco_udp">megaco_udp</seealso>, 
      and TCP/TPKT, see <seealso marker="megaco_tcp">megaco_tcp</seealso>. </p>
  </section>
</chapter>