io_uring_sqe_set_data(3)        liburing Manual       io_uring_sqe_set_data(3)

NAME
       io_uring_sqe_set_data - set user data for submission queue event

SYNOPSIS
       #include <liburing.h>

       void io_uring_sqe_set_data(struct io_uring_sqe *sqe,
                                  void *user_data);
       void io_uring_sqe_set_data64(struct io_uring_sqe *sqe,
                                    __u64 data);

DESCRIPTION
       The io_uring_sqe_set_data(3) function stores a user_data pointer with
       the submission queue entry sqe.

       The io_uring_sqe_set_data64(3) function stores a 64-bit data value with
       the submission queue entry sqe.

       After the caller has requested a submission queue entry (SQE) with
       io_uring_get_sqe(3), they can associate a data pointer or value with
       the SQE. Once the completion arrives, the function
       io_uring_cqe_get_data(3) or io_uring_cqe_get_data64(3) can be called to
       retrieve the data pointer or value associated with the submitted
       request.


RETURN VALUE
       None

SEE ALSO
       io_uring_get_sqe(3), io_uring_cqe_get_data(3)

liburing-2.1                   November 15, 2021      io_uring_sqe_set_data(3)