grpc_finalize - Executes the Ninf-G end processing.
  grpc_error_t grpc_finalize()
The grpc_finalize() function performs the processing for terminating Ninf-G.
All outstanding jobs are canceled and resources used by Ninf-G are released. The cancellation procedure includes end processing for the Globus Toolkit.
This function is MT-unsafe.
If successful, GRPC_NO_ERROR is returned. In the case of an error, Error code is returned
  GRPC_NOT_INITIALIZED  GRPC_OTHER_ERROR_CODE