Copyright (C) 2021 Stefan Roesch <[email protected]>

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

io_uring_submit_and_wait_timeout - submit requests to the submission queue and wait for the completion with timeout

 #include <liburing.h> 

 "int io_uring_submit_and_wait_timeout(struct io_uring *" ring ","  " struct io_uring_cqe **" cqe_ptr ","  " unsigned " wait_nr ","  " struct __kernel_timespec *" ts ","  " sigset_t *" sigmask ");" 

The io_uring_submit_and_wait_timeout (3) function submits the next events to the submission queue belonging to the ring and waits for wait_nr completion events or until the timeout ts expires. The completion events are stored in the cqe_ptr array. The sigmask specifies the set of signals to block. The prevailing signal mask is restored before returning. 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_timeout (3) .

On success io_uring_submit_and_wait_timeout (3) returns the number of submitted submission queue entries. On failure it returns -errno . The most common failure case is not receiving a completion within the specified timeout, -ETIME is returned in this case. io_uring_get_sqe (3), io_uring_submit (3), io_uring_submit_and_wait (3), io_uring_wait_cqe (3)