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Lines Matching defs:item

38  *	P1. initialize an item
43  *	P3. atomic_store_release(&pcq->pcq_items[c], item) to publish
44  *	    the item in the space it reserved
56  *	    unconsumed but potentially published item (fails if item
60  *	    published item
67  *	C6. use the item
78  *	Initializing item at P1 is dependency-ordered before usage of
79  *	item at C6, so items placed by pcq_put can be safely used by
88  *		C2 (if not, pcq_get fails in `if (item == NULL) return
101  *	location at store C3 happens before placing a new item in the
176  * pcq_put: place an item at the end of the queue.
179 pcq_put(pcq_t *pcq, void *item)
184 	KASSERT(item != NULL);
199 	 * data item.  See pcq_get().  This also ensures that any changes
200 	 * that the caller made to the data item are globally visible
203 	atomic_store_release(&pcq->pcq_items[op], item);
214  * pcq_peek: return the next item from the queue without removal.
229  * pcq_get: remove and return the next item for consumption or NULL if empty.
238 	void *item;
246 	item = atomic_load_consume(&pcq->pcq_items[c]);
247 	if (item == NULL) {
283 	return item;