NET/MASTER Network Control Language (NCL) Programmer's Guide

Contents
xxii 106160 Tandem Computers Incorporated
Section 18 Advanced NCL Programming
Accessing the User ID Management Services (UMS) Database 18-1
System Variables Set by SECCALL Verbs 18-2
Adding a Record 18-3
Changing a Record 18-8
Checking Logon Capability 18-11
Deleting a Record 18-12
Getting a Record 18-12
Updating a Record 18-15
Communicating With a Security Exit 18-16
Altering NCL Process Execution 18-17
Syntax of the CONTROL Verb 18-17
Sharing the CONTROL Environment 18-17
Synchronizing Access to Resources 18-18
Resources 18-18
Resource Groups 18-19
The Resource Name Hierarchy 18-20
Resource Naming Conventions 18-20
Controlling Access 18-20
Using Resources as Semaphores 18-21
Displaying Information About Locks 18-21
Working With Vartables 18-22
Structure of a Vartable 18-22
Defining a Vartable 18-23
Glossary Glossary–1
Index Index–1
Figures Figure 1. Documentation Road Map xxxi
Figure 4-1. Layout and Scope of an NCL Procedure 4-2
Figure 6-1. Structure of an Internal Procedure 6-6
Figure 6-2. Structure of an Internal, User-Written Function 6-7
Figure 6-3. Nested Procedures and User-Written Functions 6-8
Figure 7-1. Search Order for an Error Handler 7-19
Figure 10-1. Header in an MDO Variable 10-7
Figure 10-2. Header of an Element in an MDO Variable 10-12