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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO | COLOPHON |
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io_uring_re...er_wait_reg(3) liburing Manual io_uring_re...er_wait_reg(3)
io_uring_register_wait_reg - register wait regions with io_uring
#include <liburing.h>
int io_uring_register_wait_reg(struct io_uring *ring,
struct io_uring_reg_wait *reg,
int nr);
The io_uring_register_wait_reg(3) function registers wait regions
with the io_uring instance specified by ring. The reg argument is
a pointer to an array of struct io_uring_reg_wait of nr entries.
Wait regions allow registering timeout and signal mask information
that can be reused across multiple wait operations without copying
the data for each call. This is used in conjunction with
io_uring_submit_and_wait_reg(3) to reduce the overhead of wait
operations.
See io_uring_register_region(3) for registering the underlying
memory region.
Returns 0 on success. On error, a negative errno value is
returned.
io_uring_submit_and_wait_reg(3), io_uring_register_region(3),
io_uring_register(2)
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 io-uring@vger.kernel.org. This page
was obtained from the project's upstream Git repository
⟨https://github.com/axboe/liburing⟩ on 2026-05-24. (At that time,
the date of the most recent commit that was found in the
repository was 2026-05-18.) 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
man-pages@man7.org
liburing-2.9 January 18, 2025io_uring_re...er_wait_reg(3)
Pages that refer to this page: io_uring_register_wait_reg(3)
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HTML rendering created 2026-05-24 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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