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io_uring_prep_fadvise(3)     liburing Manual    io_uring_prep_fadvise(3)

ИМЯ

       io_uring_prep_fadvise - prepare a fadvise request

СИНТАКСИС

       #include <fcntl.h>
       #include <liburing.h>

       void io_uring_prep_fadvise(struct io_uring_sqe *sqe,
                                  int fd,
                                  __u64 offset,
                                  off_t len,
                                  int advice);

ОПИСАНИЕ

       The io_uring_prep_fadvise(3) function prepares an fadvise
       request. The submission queue entry sqe is setup to use the file
       descriptor pointed to by fd to start an fadvise operation at
       offset and of len length in bytes, giving it the advise located
       in advice.

       This function prepares an async posix_fadvise(2) request. See
       that man page for details.

ЗНАЧЕНИЕ ВОЗВРАТА

       None

ОШИБКИ

       The CQE res field will contain the result of the operation. See
       the related man page for details on possible values. Note that
       where synchronous system calls will return -1 on failure and set
       errno to the actual error value, io_uring never uses errno.
       Instead it returns the negated errno directly in the CQE res
       field.

СМОТРИ ТАКЖЕ

       io_uring_get_sqe(3), io_uring_submit(3), io_uring_register(2),
       posix_fadvise(2)

КОЛОФОН

       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 2024-06-14.  (At that
       time, the date of the most recent commit that was found in the
       repository was 2024-06-03.)  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-2.2                 March 13, 2022     io_uring_prep_fadvise(3)

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