loop

const (
	// WaitPoll monitors completion queue by polling (or IO_URING_ENTER with minComplete=0 in case of IOPOLL)
	WaitPoll uint = iota
	// WaitEnter monitors completion queue by waiting on IO_URING_ENTER with minComplete=1
	// Registering files and buffers requires uring to become idle, with WaitEnter we are
	// blocking until the next event is completed. Even if queue is empty this
	// makes uring think that it is not idle. As a consequence Registering files
	// or buffers leads to deadlock.
	WaitEnter
	// WaitEventfd wathches eventfd of each queue in the shard.
	WaitEventfd
)

const (
	// FlagSharedWorkers shares worker pool from the first ring instance between all shards in the queue.
	FlagSharedWorkers = 1 << iota

	// FlagBatchSubmission enables feature to batch individual submission together
	// in one unix. If this flag is set SubmissionTimer option must be set as well.
	FlagBatchSubmission
)