include/linux/wait.h

5  * Linux wait queue related types and methods
12 #include <uapi/linux/wait.h>
27  * A single wait-queue entry structure:
100  * returns true if the wait list is not empty
111  *      @cond = true;                     prepare_to_wait(&wq_head, &wait, state);
117  *                                      finish_wait(&wq_head, &wait);
121  * observe an empty wait list while the waiter might not observe @cond.
133  * @wq_head: wait queue head
146  * @wq_head: wait queue head
156 	 * add_wait_queue modifications to the wait queue.  in wq_has_sleeper()
242  * @wq_head: the wait queue head
321  * @wq_head: the waitqueue to wait on
322  * @condition: a C expression for the event to wait for
329  * change the result of the wait condition.
360  * @wq_head: the waitqueue to wait on
361  * @condition: a C expression for the event to wait for
368  * change the result of the wait condition.
386  * @wq_head: the waitqueue to wait on
387  * @condition: a C expression for the event to wait for
395  * change the result of the wait condition.
449  * @wq_head: the waitqueue to wait on
450  * @condition: a C expression for the event to wait for
459  * change the result of the wait condition.
474  * @wq_head: the waitqueue to wait on
475  * @condition: a C expression for the event to wait for
482  * change the result of the wait condition.
503  * @wq_head: the waitqueue to wait on
504  * @condition: a C expression for the event to wait for
512  * change the result of the wait condition.
558  * @wq_head: the waitqueue to wait on
559  * @condition: a C expression for the event to wait for
567  * change the result of the wait condition.
584  * @wq: the waitqueue to wait on
585  * @condition: a C expression for the event to wait for
593  * change the result of the wait condition.
649  * wait_event_idle - wait for a condition without contributing to system load
650  * @wq_head: the waitqueue to wait on
651  * @condition: a C expression for the event to wait for
658  * change the result of the wait condition.
669  * wait_event_idle_exclusive - wait for a condition with contributing to system load
670  * @wq_head: the waitqueue to wait on
671  * @condition: a C expression for the event to wait for
677  * The process is put on the wait queue with an WQ_FLAG_EXCLUSIVE flag
678  * set thus if other processes wait on the same list, when this
682  * change the result of the wait condition.
699  * @wq_head: the waitqueue to wait on
700  * @condition: a C expression for the event to wait for
708  * change the result of the wait condition.
732  * @wq_head: the waitqueue to wait on
733  * @condition: a C expression for the event to wait for
740  * The process is put on the wait queue with an WQ_FLAG_EXCLUSIVE flag
741  * set thus if other processes wait on the same list, when this
745  * change the result of the wait condition.
784  * @wq: the waitqueue to wait on
785  * @condition: a C expression for the event to wait for
800  * change the result of the wait condition.
811  * @wq: the waitqueue to wait on
812  * @condition: a C expression for the event to wait for
827  * change the result of the wait condition.
838  * @wq: the waitqueue to wait on
839  * @condition: a C expression for the event to wait for
853  * The process is put on the wait queue with an WQ_FLAG_EXCLUSIVE flag
858  * change the result of the wait condition.
869  * @wq: the waitqueue to wait on
870  * @condition: a C expression for the event to wait for
884  * The process is put on the wait queue with an WQ_FLAG_EXCLUSIVE flag
889  * change the result of the wait condition.
904  * @wq_head: the waitqueue to wait on
905  * @condition: a C expression for the event to wait for
912  * change the result of the wait condition.
933  * @wq_head: the waitqueue to wait on
934  * @condition: a C expression for the event to wait for
942  * change the result of the wait condition.
976  * @wq_head: the waitqueue to wait on
977  * @condition: a C expression for the event to wait for
988  * change the result of the wait condition.
1006  * @wq_head: the waitqueue to wait on
1007  * @condition: a C expression for the event to wait for
1016  * change the result of the wait condition.
1040  * @wq_head: the waitqueue to wait on
1041  * @condition: a C expression for the event to wait for
1052  * change the result of the wait condition.
1074  * @wq_head: the waitqueue to wait on
1075  * @condition: a C expression for the event to wait for
1084  * change the result of the wait condition.
1112  * @wq_head: the waitqueue to wait on
1113  * @condition: a C expression for the event to wait for
1123  * change the result of the wait condition.
1173 #define init_wait(wait)								\  argument
1175 		(wait)->private = current;					\
1176 		(wait)->func = autoremove_wake_function;			\
1177 		INIT_LIST_HEAD(&(wait)->entry);					\
1178 		(wait)->flags = 0;						\