io_uring_queue_mmap(3)          liburing Manual         io_uring_queue_mmap(3)

NAME
       io_uring_queue_mmap - mmap io_uring ring after setup

SYNOPSIS
       #include <liburing.h>

       int io_uring_queue_mmap(int fd, struct io_uring_params *p,
                               struct io_uring *ring);

DESCRIPTION
       The io_uring_queue_mmap(3) function maps the io_uring ring file
       descriptor fd into memory using the parameters in p.  The resulting
       ring is stored in ring.

       This function is a helper for applications that need to customize the
       ring setup process. Most applications should use io_uring_queue_init(3)
       or io_uring_queue_init_params(3) instead, which call io_uring_setup(2)
       and this function automatically.

       The fd argument should be a file descriptor returned by
       io_uring_setup(2), and p should contain the parameters returned by the
       setup call.


RETURN VALUE
       Returns 0 on success, or a negative errno value on error.

SEE ALSO
       io_uring_setup(2), io_uring_queue_init(3),
       io_uring_queue_init_params(3), io_uring_queue_exit(3)

liburing-2.4                   January 18, 2025         io_uring_queue_mmap(3)