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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | SEE ALSO | COLOPHON |
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io_uring_prep_epoll_ctl(3) liburing Manual io_uring_prep_epoll_ctl(3)
io_uring_prep_epoll_ctl - prepare an epoll_ctl request
#include <liburing.h>
void io_uring_prep_epoll_ctl(struct io_uring_sqe *sqe,
int epfd,
int fd,
int op,
const struct epoll_event *ev);
The io_uring_prep_epoll_ctl(3) function prepares an epoll control
request. The submission queue entry sqe is setup to use the epoll
instance referred to by epfd, performing the operation op on the
file descriptor fd. The ev argument points to an epoll_event
structure as defined in epoll_ctl(2).
The op argument can be one of:
EPOLL_CTL_ADD
Add fd to the epoll instance.
EPOLL_CTL_MOD
Modify the settings for fd.
EPOLL_CTL_DEL
Remove fd from the epoll instance. ev is ignored for this
operation.
This function prepares an async epoll_ctl(2) request. See
that man page for details.
None
The CQE res field will contain the result of the operation, 0 on
success. On error, a negative errno value is returned. See
epoll_ctl(2) for possible error values.
io_uring_get_sqe(3), io_uring_submit(3),
io_uring_prep_epoll_wait(3), epoll_ctl(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-2.4 January 18, 2025 io_uring_prep_epoll_ctl(3)
Pages that refer to this page: io_uring_prep_epoll_ctl(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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