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io_uring_submit_and_wait(3) liburing Manual io_uring_submit_and_wait(3)

NAME

io_uring_submit_and_wait - submit requests to the submission queue and wait for completion

SYNOPSIS

#include <liburing.h>
int io_uring_submit_and_wait(struct io_uring *ring,
                             unsigned wait_nr);

DESCRIPTION

The io_uring_submit_and_wait(3) function submits the next requests from the submission queue belonging to the ring and waits for wait_nr completion events.

After the caller retrieves a submission queue entry (SQE) with io_uring_get_sqe(3) and prepares the SQE, it can be submitted with io_uring_submit_and_wait(3).

RETURN VALUE

On success io_uring_submit_and_wait(3) returns the number of submitted submission queue entries. On failure it returns -errno.

SEE ALSO

io_uring_get_sqe(3), io_uring_submit(3), io_uring_submit_and_wait_timeout(3)

November 15, 2021 liburing-2.1