NET/MASTER Network Control Language (NCL) Reference Manual

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Verbs

3–180 106126 Tandem Computers Incorporated

YES

specifies synchronization. The invoking NCL process does not continue

execution until it receives the results of attempting to start the new NCL

process. If execution is successful, &SYSMSG contains the NCL process

identifier (NCL ID) of the started NCL process and &SYS.RETCODE contains

a return code of 0 (zero); otherwise, &SYSMSG is not affected and

&SYS.RETCODE contains a return code indicating an error.

After specifying NOTIFY=YES and obtaining the NCL ID of the started NCL

process, the invoking NCL process can easily send messages to the started

NCL process: for example, by using the WRITE verb.

RESTART

specifies whether the NCL process is a persistent NCL process.

specifies that the process is not persistent.

YES

specifies that the process is persistent when started in a background

environment. The NCL process is terminated if an attempt is made to start it

in other than a background environment.

CONDITIONAL

specifies that the process is conditionally persistent. If the NCL process is

started in a background environment, it is a persistent NCL process. If the

NCL process is started in a nonbackground environment, it is not persistent.

Considerations

There is a default limit of 128 NCL processes that a user can execute concurrently.

This limit can be increased to a maximum of 32767 by using the SYSPARMS

NCLUMAX command. Refer to the NonStop NET/MASTER MS Command

Reference Manual for a description of this command.

If you specify RESTART=YES or RESTART=CONDITIONAL, and the operating

system process fails or there is a hardware failure, a backup process restarts the

NCL procedure from the first executable statement.