OSI/MHS Gateway Programmatic Interface (GPI) Programming Guide

Introduction
OSI/MHS Gateway Programmatic Interface (GPI) Programming Guide—424822-001
1-3
Process Architecture
•
A flexible architecture, useful for many applications
•
Full control over gateway P1 and P2 facilities
Process Architecture
In exchanging messages between a proprietary system and an X.400 system, the GPI
makes use of the queue manager and several entities in the OSI/MHS subsystem. A
view of the complete gateway environment is shown in Figure 1-3.
The components involved in GPI operation are:
•
The client application program
•
The GPI components, including the GPI library, the library interface, and the
gateway interface process (GIP)
•
The queue manager
•
The MHS manager
•
The message relay group (MR group), including the message relay process (MRP),
the reliable transport service (RTS) and the PDU store
Figure 1-3. The Gateway Environment
103CDT .CDD
Proprietary
System
Message
OSI/MHS Subsystem
Compaq System
MHS
Manager
PDU
Store
MR Group
Queue Manager
X.400
Message
RTSMRP
Wait Manager
Entry Manager
Queue File
GIP
GPI X.400 Gateway
Client
GPI
Library