Envoy Application Programming Manual
Table Of Contents
- What’s New in This Manual
- About This Manual
- 1 Application Programming With Envoy
- 7 ADM-2 Multipoint Supervisor Protocol
- 8 TINET Multipoint Supervisor Protocol
- 9 Burroughs Point-To-Point Protocol
- 10 Asynchronous Line Supervisor Protocol
- A ASCII Character Set
- B ASCII to EBCDIC Code Conversion
- C File-System Procedures
- D Statistics Messages
- E S-Series Changes to Envoy
- NonStop™ Himalaya S-Series Server Architecture
- G-Series Migration Considerations
- CBSENSEON and CFSENSEON Modifiers
- LEOTRESYN and NOLEOTRESYN Modifiers
- Treatment of Characters After the Termination Character
- Number of SYN Characters
- DTR Drop
- Reporting of Parity Error
- Half-Duplex Support for Asynchronous Lines
- Controller Replacement
- SYSGEN and COUP
- Unit Numbers
- FDX Line Changes
- No Support for Auto-Call Unit
- Glossary
- Index
ADM-2 Multipoint Supervisor Protocol
Envoy Application Programming Manual—427159-001
7-38
Programming Examples
Table 7-13 lists the error codes that can occur during a WRITE operation.
Programming Examples
The ADM-2 programming examples include the following operations:
•
Poll and READ Operation on page 7-40: Polling the network and reading a message
from a terminal.
•
Select and Send Operation on page 7-42: Selection of a terminal and sending a
normal message to it.
•
Sending a Broadcast-Select Message on page 7-43: Sending a broadcast-select
message formatted by Envoy to the network.
•
Sending a Fast-Select Message on page 7-45: Sending a fast-select message
formatted by the application process to a terminal.
•
WRITEREAD (Send Function and Read Message) on page 7-46: Polling a terminal
and sending a WRITEREAD of a send function or a read message to it.
Table 7-13. WRITE Operation Error Codes
Error Code Description
0 No error (successful completion)
162 Operation timed out
163 EOT in response to acknowledgment
168 NAK in response to selection
172 Reply not proper for protocol
177 Text overrun