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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO | COLOPHON |
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io_uring_r...sync_cancel(3) liburing Manual io_uring_r...sync_cancel(3)
io_uring_register_sync_cancel - issue a synchronous cancelation
request
#include <liburing.h>
int io_uring_register_sync_cancel(struct io_uring *ring,
struct io_uring_sync_cancel_reg *reg);
The io_uring_register_sync_cancel(3) function performs a
synchronous cancelation request based on the parameters specified
in reg .
The reg argument must be filled in with the appropriate
information for the cancelation request. It looks as follows:
struct io_uring_sync_cancel_reg {
__u64 addr;
__s32 fd;
__u32 flags;
struct __kernel_timespec timeout;
__u64 pad[4];
};
The arguments largely mirror what the async prep functions
support, see io_uring_prep_cancel(3) for details. Similarly, the
return value is the same. The exception is the timeout argument,
which can be used to limit the time that the kernel will wait for
cancelations to be successful. If the tv_sec and tv_nsec values
are set to anything but -1UL , then they indicate a relative
timeout upon which cancelations should be completed by.
The pad values must be zero filled.
See io_uring_prep_cancel(3) for details on the return value. If
timeout is set to indicate a timeout, then -ETIME will be
returned if exceeded. If an unknown value is set in the request,
or if the pad values are not cleared to zero, then -EINVAL is
returned.
io_uring_prep_cancel(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 io-uring@vger.kernel.org. This page
was obtained from the project's upstream Git repository
⟨https://github.com/axboe/liburing⟩ on 2023-12-22. (At that
time, the date of the most recent commit that was found in the
repository was 2023-12-19.) 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-2.3 September 21, 2022io_uring_r...sync_cancel(3)
Pages that refer to this page: io_uring_register(2), io_uring_register_sync_cancel(3)
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HTML rendering created 2023-12-22 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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