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<H1><A NAME="SECTION006400000000000000000"> </A>
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4.4 Overview of a Connection Handler
</H1>
<a name="l2h-28"> </a>
<P>
A <i class="dfn">connection handler</i> handles the connection, starting almost
immediately from the point the TCP connection to the server was
made.
<P>
Unlike HTTP handlers, connection handlers receive a <i>connection</i>
object as an argument.
<P>
Connection handlers can be used to implement protocols. Here is an
example of a simple echo server:
<P>
Apache configuration:
<div class="verbatim"><pre>
PythonConnectionHandler echo
</pre></div>
<P>
Contents of <span class="file">echo.py</span> file:
<P>
<div class="verbatim"><pre>
from mod_python import apache
def connectionhandler(conn):
while 1:
conn.write(conn.readline())
return apache.OK
</pre></div>
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<span class="release-info">Release 3.2.10, documentation updated on July 19, 2006.</span>
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