TRANSFER Programming Manual

Network Guidelines
Designing and Writing a Client
9–4 069138, Update 1 to 040970 Tandem Computers Incorporated
Network Guidelines When your process issues a START-SESSION UOW for a correspondent, it must direct
this UOW to a server or server class running at the node where the correspondent is
registered. Your application must continue to use the same server or server class
because the SESSION-ID assigned in the response to the START-SESSION UOW is
defined only at the node where the correspondent is registered.
Using TRANSFER
UOWs
Processes request services from TISERV and use units-of-work (UOWs) to convey the
requests. Each UOW has a standard header that identifies the operation requested.
Each response UOW has a return code that identifies the action taken in response to
the corresponding request UOW.
The format of requests issued by your program is the same whether the request is
issued by a SEND statement or by a WRITEREAD call. A single SEND statement or
WRITEREAD call can request multiple services as long as all of those services are for
the same session.
UOWs must be word-aligned. The user data area length must contain an even number
of bytes.