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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO | COLOPHON |
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io_uring_sqring_wait(3) liburing Manual io_uring_sqring_wait(3)
io_uring_sqring_wait - wait for free space in the SQ ring
#include <liburing.h>
int io_uring_sqring_wait(struct io_uring *ring);
The function io_uring_sqring_wait(3) allows the caller to wait for
space to free up in the SQ ring belonging to the ring param, which
happens when the kernel side thread has consumed one or more
entries. If the SQ ring is currently non-full, no action is taken.
This feature can only be used when the ring has been setup with
IORING_SETUP_SQPOLL and hence is using an offloaded approach to
request submissions.
On success it returns the free space. If the kernel does not
support the feature, -EINVAL is returned.
io_uring_submit(3), io_uring_wait_cqe(3), io_uring_wait_cqes(3)
This page is part of the liburing (A library for io_uring)
project. Information about the project can be found at
⟨https://github.com/axboe/liburing⟩. If you have a bug report for
this manual page, send it to [email protected]. This page
was obtained from the project's upstream Git repository
⟨https://github.com/axboe/liburing⟩ on 2025-08-11. (At that time,
the date of the most recent commit that was found in the
repository was 2025-08-02.) If you discover any rendering
problems in this HTML version of the page, or you believe there is
a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
[email protected]
liburing-2.1 January 25, 2022 io_uring_sqring_wait(3)
Pages that refer to this page: io_uring_sqring_wait(3)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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