Programming Guides › Programming Guide for C › Customizing the Policy Server › Work with Authentication and Authorization APIs › Saving Data Between Module Invocations

Saving Data Between Module Invocations

When the Policy Server makes calls to custom modules, it may be convenient for these modules to communicate some request-specific information between themselves. Custom modules built with the Authentication, Authorization or Directory APIs can preserve state between module invocations. To preserve state, use the memory management hooks provided in the Sm_Api_Context_t structure (defined in SmApi.h). State has request-only scope and is limited to a single instance of a process; that is, a custom module running in the context of the authentication server cannot exchange state with a module running in the context of the authorization server.