K 10
svn:author
V 6
scottl
K 8
svn:date
V 27
2008-03-25T22:38:45.000000Z
K 7
svn:log
V 429
Implement taskqueue_block() and taskqueue_unblock().  These functions allow
the owner of a queue to block and unblock execution of the tasks in the
queue while allowing tasks to continue to be added queue.  Combining this
with taskqueue_drain() allows a queue to be safely disabled.  The unblock
function may run (or schedule to run) the queue when it is called, just as
calling taskqueue_enqueue() would.

Reviewed by: jhb, sam

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