uxsetabort - Prevent Cancellation

Valid on Windows, UNIX and OpenVMS

This section describes the uxsetabort command used to define a zone in the script of the Uproc that cannot be interrupted by a stop command from an operational interface of Dollar Universe:

• Univiewer Console: list of job runs
• uxend ctl command

Operating system commands can still be used to kill a process but this is not recommended.

This command can only be executed from the script of a Uproc. Its execution is traced in the Uproc’s job log and history trace.

If the operator requests that execution of the Uproc be canceled while in the protected zone, a message informs him of the parameter behavior:

• either the cancellation command is executed at the end of the protected zone,
• or the cancellation command is simply ignored.

If the operator cancels an execution outside of the protected zone, the cancellation will take immediate effect whatever the command configuration parameters.

The command syntax is as follows:

uxsetabort allow=on|off [queue=on|off]

Description of Items

• allow=

  Delimits the protected zone of the script of the Uproc.

  • allow=off marks the start of the protected zone, during which the Uproc cannot be stopped by a command from a Dollar Universe interface.
  • allow=on marks the end of the protected zone. If this command is not in the script, the protected zone extends to the end of the script.

• queue=

  (Optional) indicates whether a stop command requested by a user must be memorized or not. Can only be used with allow=off.

  • queue=on the stop command must be memorized. It will then be executed once the protected zone has ended. Default value.
  • queue=off the stop command must not be memorized. It will then not be executed once the protected zone has ended.

Examples

If the protected zone is delimited by a start command (uxsetabort allow=off) and an end command (uxsetabort allow=on), the behavior is as follows, depending on the value of the item queue:

If queue=on, the stop command is executed after the end of the protected zone.

If the protected zone extends to the end of the script, the behavior is as follows, depending on the value of the item queue:

If queue=on, the stop command is memorized and executed at the end of the Uproc script. The execution status of the Uproc is then Aborted. If the Uproc was part of a session, the error path of the session (if it exists) will be executed.