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

Contents
xxiv 106160 Tandem Computers Incorporated
Figure 16-3. Environmental Hierarchy for a Real User 16-10
Figure 16-4. Flow of Commands and Results From OCS 16-14
Figure 16-5. Flow of Commands and Results From NCL Under OCS 16-14
Figure 16-6. Environmental Hierarchy for a Virtual User 16-16
Figure 16-7. Using CMD in the Current Execution Environment 16-19
Figure 16-8. Using CMD in the Primary Processing Environment Under
OCS 16-20
Figure 16-9. Using INTCMD to Execute a Command 16-22
Figure 16-10. Executing INTCMD START and INTCMD EXEC 16-25
Figure 16-11. Combinations of CMD, INTCMD, START, and EXEC 16-28
Figure 16-12. The Request and Response Queues 16-31
Figure 16-13. Using INTCMD, INTREAD, INTCLEAR, and INTCONT 16-32
Figure 16-14. Using INTQ to Send a Message 16-41
Figure 17-1. A Closed Loop 17-13
Figure 18-1. Structure of a Vartable 18-23
Tables Table 2-1. Some Keywords Used in Core Statements 2-1
Table 2-2. Some Keywords Used in Verbs 2-2
Table 2-3. Alphabetic Characters and the Current Context 2-3
Table 2-4. Nonalphanumeric Characters and the Current Context 2-4
Table 2-5. Summary of Core Statements 2-7
Table 2-6. Summary of Verbs 2-11
Table 4-1. Valid Label Characters 4-6
Table 5-1. Core Statements Used to Control Execution Flow 5-1
Table 6-1. Core Statements Used With NCL Procedures and
Functions 6-1
Table 7-1. Core Statements Used for Run-Time Error Handling 7-1
Table 7-2. System Variables Containing Error Information 7-21
Table 7-3. System-Defined Error Handlers for Specific Conditions 7-23
Table 8-1. NonStop NET/MASTER MS Commands That Display
Information About NCL Processes 8-17
Table 9-1. Commands Used to Debug an NCL Process 9-1
Table 10-1. Verbs Used With Maps and MDO Variables 10-1
Table 10-2. Verbs That Automatically Create an MDO Variable 10-30