basic.unlock
Resets execution lock.
Syntax
unlock unlock lock.number.expression
Description
resets an execution lock, in the range 0 to 63, previously set with a 'lock' statement.
If no 'lock.number' is specified, all locks set by the program are unlocked.
Example
again: lock 12 else rqm; goto again
read rec from file,id else print id:' not found'; rec = 'X'
write rec on file,id
unlock 12
This conditionally sets execution lock 12 just before a segment of code which
performs file retrieval and update. When complete, lock 12 is cleared by the
'unlock' statement.
See Also
Command Name
Type
Description
User Comments
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