msglock
This modifies and queries a message object's locks.
msglock ?-nodestroy? ?-nowrite? msgId
Each flag specifies a lock to set on the message in the interpreter. After set, you cannot remove a lock.
This command returns a list describing the message's lock-state after the new locks, if any, are applied.
The list contains zero or more of these elements:
-
nodestroy
: Message cannot be destroyed. -
nowrite
: Message cannot be modified.