Pathway/iTS TCP and Terminal Programming Guide

Contents
Compaq NonStop™ Pathway/iTS TCP and Terminal Programming Guide—426751-001
iv
5. Managing Transactions With the TMF Subsystem
5. Managing Transactions With the TMF Subsystem
Task Overview 5-1
TMF Application Structure
5-2
TMF Programming in SCREEN COBOL
5-3
Transaction Mode Use
5-3
SCREEN COBOL Verbs for the TMF Subsystem
5-4
SCREEN COBOL Special Registers for the TMF Subsystem
5-7
Interaction Between the PATHMON Environment and the TMF Subsystem
5-8
SET SERVER Command and the TMF Subsystem
5-9
SET TERM and SET PROGRAM Commands and the TMF Subsystem
5-9
Effect of TMF Parameters on SCREEN COBOL SEND Operations
5-10
Timeouts on SEND Operations to Servers
5-11
TCP Checkpointing Strategy
5-12
Precautions for Using TMF Parameters
5-13
6. Programming for Intelligent Devices
The SEND MESSAGE Statement 6-2
Using Delimiters and the RESULTING COUNT Clause
6-3
Declaring Delimiters
6-3
Sample Declarations
6-3
Processing Field Delimiters on Input
6-5
Using Field Delimiters on Output
6-5
Using Message Delimiters
6-6
Using Delimited Format With Delimiters Turned Off
6-7
Using TRANSFORM Statements
6-8
Example 1: Disassembling Input Messages
6-8
Example 2: Assembling Output Messages
6-11
Using PRESENT IF Clauses
6-12
Error Processing and Debugging Techniques
6-15
ON ERROR Processing
6-15
FIELD STATUS Processing
6-15