<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <title>4.8 Session - Session Management</title> <META NAME="description" CONTENT="4.8 Session - Session Management"> <META NAME="keywords" CONTENT="modpython"> <META NAME="resource-type" CONTENT="document"> <META NAME="distribution" CONTENT="global"> <link rel="STYLESHEET" href="modpython.css"> <link rel="first" href="modpython.html"> <link rel="contents" href="contents.html" title="Contents"> <link rel="index" href="genindex.html" title="Index"> <LINK REL="next" href="pyapi-psp.html"> <LINK REL="previous" href="pyapi-cookie.html"> <LINK REL="up" href="pythonapi.html"> <LINK REL="next" href="pyapi-sess-classes.html"> </head> <body> <DIV CLASS="navigation"> <table align="center" width="100%" cellpadding="0" cellspacing="2"> <tr> <td><A href="pyapi-cookie-example.html"><img src="icons/previous.png" border="0" height="32" alt="Previous Page" width="32"></A></td> <td><A href="pythonapi.html"><img src="icons/up.png" border="0" height="32" alt="Up One Level" width="32"></A></td> <td><A href="pyapi-sess-classes.html"><img src="icons/next.png" border="0" height="32" alt="Next Page" width="32"></A></td> <td align="center" width="100%">Mod_python Manual</td> <td><A href="contents.html"><img src="icons/contents.png" border="0" height="32" alt="Contents" width="32"></A></td> <td><img src="icons/blank.png" border="0" height="32" alt="" width="32"></td> <td><A href="genindex.html"><img src="icons/index.png" border="0" height="32" alt="Index" width="32"></A></td> </tr></table> <b class="navlabel">Previous:</b> <a class="sectref" href="pyapi-cookie-example.html">4.7.3 Examples</A> <b class="navlabel">Up:</b> <a class="sectref" href="pythonapi.html">4. Python API</A> <b class="navlabel">Next:</b> <a class="sectref" href="pyapi-sess-classes.html">4.8.1 Classes</A> <br><hr> </DIV> <!--End of Navigation Panel--> <H1><A NAME="SECTION006800000000000000000"> </A> <BR> 4.8 <tt class="module">Session</tt> - Session Management </H1> <P> The <tt class="module">Session</tt> module provides objects for maintaining persistent sessions across requests. <P> The module contains a <tt class="class">BaseSession</tt> class, which is not meant to be used directly (it provides no means of storing a session), and a <tt class="class">DbmSession</tt> class, which uses a dbm to store sessions. <P> The <tt class="class">BaseSession</tt> class also provides session locking, both across processes and threads. For locking it uses APR global_mutexes (a number of them is pre-created at startup) The mutex number is computed by using modulus of the session id <tt class="function">hash()</tt>. (Therefore it's possible that different session id's will have the same hash, but the only implication is that those two sessions cannot be locked at the same time resulting in a slight delay.) <P> <p><hr> <!--Table of Child-Links--> <A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></a> <UL CLASS="ChildLinks"> <LI><A href="pyapi-sess-classes.html">4.8.1 Classes</a> </ul> <!--End of Table of Child-Links--> <DIV CLASS="navigation"> <p><hr> <table align="center" width="100%" cellpadding="0" cellspacing="2"> <tr> <td><A href="pyapi-cookie-example.html"><img src="icons/previous.png" border="0" height="32" alt="Previous Page" width="32"></A></td> <td><A href="pythonapi.html"><img src="icons/up.png" border="0" height="32" alt="Up One Level" width="32"></A></td> <td><A href="pyapi-sess-classes.html"><img src="icons/next.png" border="0" height="32" alt="Next Page" width="32"></A></td> <td align="center" width="100%">Mod_python Manual</td> <td><A href="contents.html"><img src="icons/contents.png" border="0" height="32" alt="Contents" width="32"></A></td> <td><img src="icons/blank.png" border="0" height="32" alt="" width="32"></td> <td><A href="genindex.html"><img src="icons/index.png" border="0" height="32" alt="Index" width="32"></A></td> </tr></table> <b class="navlabel">Previous:</b> <a class="sectref" href="pyapi-cookie-example.html">4.7.3 Examples</A> <b class="navlabel">Up:</b> <a class="sectref" href="pythonapi.html">4. Python API</A> <b class="navlabel">Next:</b> <a class="sectref" href="pyapi-sess-classes.html">4.8.1 Classes</A> <hr> <span class="release-info">Release 3.1.0a, documentation updated on August 26, 2003.</span> </DIV> <!--End of Navigation Panel--> </BODY> </HTML>
distrib
>
Mandriva
>
9.2
>
i586
>
media
>
contrib
>
by-pkgid
>
dddfd1c874d00a6a720179bd81bafd8d
>
files
>
116
