AREANeedToSyncCallback

Description

This function determines whether the user information in the server cache is valid. The AR System server periodically checks with the AREA plug-in to determine whether any in-memory copies of user information have expired. The plug-in server calls this function if it receives an authentication request from the server at least five minutes after the last authentication request.

Here, in order to be thread-safe, the plug-in must protect any global information or resources accessed with appropriate mutual exclusion locks.

A non-zero return value instructs the AR System server to remove its internally stored user information.