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authorpaul <paul>2005-05-23 13:42:46 +0000
committerpaul <paul>2005-05-23 13:42:46 +0000
commit269d74fdc39a612da8f627bf97628c68d25a16ab (patch)
tree8add14e852e83369123ee576a995b28f006800d4 /isisd/include-netbsd/esis.h
parenta94feb380df46bdfc742257648c9825e8e7b17c0 (diff)
2005-05-23 Paul Jakma <paul@dishone.st>
* workqueue.h: Add a WQ_QUEUE_BLOCKED item_status return code, to allow a queue function to indicate the queue is not ready/blocked - rather than any problem with the item at hand. Add a notion of being able to 'plug' and 'unplug' a queue. Add helpers to plug/unplug a queue. Add a completion callback, to be called when a queue is emptied. * workqueue.c: (work_queue_new) remove useless list_free. (work_queue_schedule) new internal helper function to schedule queue, if appropriate. (work_queue_add) use work_queue_schedule (show_work_queues) Print 'P' if queue is plugged. (work_queue_plug) new API function, plug a queue - ie prevent it from 'drained' / processed / scheduled. (work_queue_unplug) unplug a queue, allowing it to be drained / scheduled / processed again. (work_queue_run) Add support for WQ_QUEUE_BLOCKED. Add comment for RETRY_NOW case. Make hysteris more aggresive in ramping up granularity, improves performance significantly. Add support for calling completion callback when queue is emptied, possibly useful for knowing when to unplug a queue.
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