TS/MP Management Programming Manual (G06.24+, H06.03+)

SPI Programming Considerations
NonStop TS/MP Management Programming Manual—540082-001
3-5
Commands
The Pathway subsystem has its own set of command numbers, which are 16-bit
integers represented in DDL by constants and in programs by TAL literals, COBOL
level-01 variables, C pragmas, or TACL text variables. The command number is one of
the tokens in the message header, which is a component of both command and
response buffers.
For TS/MP objects, the Pathway subsystem supports the programmatic commands
listed in Table 3-1.
These commands and the Pathway subsystem’s responses to them are described in
Section 8, Pathway Subsystem Control Commands, and Section 9, Server Class
Commands.
Table 3-1. TS/MP Programmatic Commands
Command Description
ZPWY-CMD-ADD Adds an object description to the PATHMON
configuration file
ZPWY-CMD-ALTER Changes an object’s configuration when the object is not
active
ZPWY-CMD-CONTROL Changes an object’s configuration while the object is
active
ZPWY-CMD-DELETE Removes an object description from the PATHMON
configuration file if the object is not active
ZPWY-CMD-FREEZE
Prohibits all link managers (such as LINKMON
processes or Pathway/iTS TCPs) from sending
requests to a server class if the object is not active
ZPWY-CMD-GETVERSION Obtains the version of an object
ZPWY-CMD-INFO Obtains the configuration of an object
ZPWY-CMD-SHUTDOWN2 Stops a Pathway subsystem more quickly and easily than
the STOP PATHWAY command
ZPWY-CMD-START Initiates operation of an object
ZPWY-CMD-STATS Obtains resource usage and performance statistics for an
object
ZPWY-CMD-STATUS Obtains current status of an object or LINKMON process
ZPWY-CMD-STOP Stops an object if the command is used after certain
conditions are met
ZPWY-CMD-SWITCH Exchanges the function of an object’s primary process
with the function of its backup process
ZPWY-CMD-THAW
Allows link managers (such as LINKMON processes
and Pathway/iTS TCPs) to send to the server class