Cancelled Commands

Commands can be cancelled at the location where they were first input. There are rules as to what a particular user may cancel, but this section describes what happens in the daemon once a cancel command has been passed to it.

Cancellation only applies to TRINCOs and not to any particular operation it has. The cancellation is immediately effected if the TRINCO has INCSTA of state "Waiting" or "Stalled".

If the TRINCO is "Ready" then all of its operations and output commands are inspected. If these TROPERs and TROUCOs are all "Waiting", "Ready" or "Stalled" then those in "Ready" or "Stalled" state are set to "cancelled" and the waiting ones become "Redundant". And the TRINCO becomes "Complete" and then "Cancelled".

TRINCOs in other, later states are not cancellable and the cancellation is rejected.

A Message is stored with the command as to whether the cancellation was effected, or rejected.