The function handle management group of functions allows creating and destroying function handles.
grpc_function_handle_default creates a new function handle using the default server. This could be a pre-determined server name or it could be a server that is dynamically chosen by the resource discovery mechanisms of the underlying GridRPC implementation, such as the NetSolve agent.
grpc_function_handle_init creates a new function handle with a server explicitly specified by the user.
grpc_function_handle_destruct releases the memory associated with the specified function handle.
grpc_get_handle returns the function handle corresponding to the given session ID (that is, corresponding to that particular non-blocking request).