Copyright (C) 2020 Jens Axboe <axboe@kernel.dk>
Copyright (C) 2020 Red Hat, Inc.

SPDX-License-Identifier: LGPL-2.0-or-later

io_uring_get_sqe - get the next vacant event from the submission queue

 "#include <liburing.h>" 

 "struct io_uring_sqe *io_uring_get_sqe(struct io_uring " *ring ); 

The io_uring_get_sqe() function gets the next vacant event from the submission queue belonging to the ring param. On success io_uring_get_sqe() returns a pointer to the submission queue event. On failure NULL is returned. If a submission queue event is returned, it should be filled out via one of the prep functions such as io_uring_prep_read (3) and submitted via io_uring_submit (3).

io_uring_get_sqe (3) returns a pointer to the next submission queue event on success and NULL on failure. io_uring_submit (3)