ICacheSessionCancelCacheRequests Method
Cancel all in progress cache requests for a given cache session.
This function is thread safe and can be called from any thread. When this function is invoked:
All blocked synchronous cache requests will return immediately with SOLCLIENT_INCOMPLETE return code
and CacheRequestCancelled subcode. A cache event RequestCompletedNotice with a subcode of CacheRequestCancelled
is generated for each in progress asynchronous cache request. The associated cache session is still valid to use. Live messages that have been queued (if any) will be delivered.