out of some resource, e.g. database connections.<p>

    <li><tt>FCGI_UNKNOWN_ROLE</tt>:
        rejecting a new request.  This happens when the Web server
        has specified a role that is unknown to the application.<p>
</ul>



<h3><a name = "S6">6. Roles</a></h3>


<h4><a name = "S6.1">6.1 Role Protocols</a></h4>

Role protocols only include records with application record
types.  They transfer essentially all data using streams.<p>

To make the protocols reliable and to simplify application
programmi