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EVENTFD_CTX_REMOVE_W(9) | Events based on file descripto | EVENTFD_CTX_REMOVE_W(9) |
NAME¶
eventfd_ctx_remove_wait_queue - Read the current counter and removes wait queue.SYNOPSIS¶
int
eventfd_ctx_remove_wait_queue(struct eventfd_ctx * ctx,
wait_queue_t * wait,
__u64 * cnt);
ARGUMENTS¶
ctx[in] Pointer to eventfd context.
wait
[in] Wait queue to be removed.
cnt
[out] Pointer to the 64-bit counter
value.
DESCRIPTION¶
Returns 0 if successful, or the following error codes: -EAGAIN : The operation would have blocked. This is used to atomically remove a wait queue entry from the eventfd wait queue head, and read/reset the counter value.COPYRIGHT¶
March 2016 | Kernel Hackers Manual 3.2. |