io_uring_register_clock(3)      liburing Manual     io_uring_register_clock(3)

NAME
       io_uring_register_clock - set clock source for event waiting

SYNOPSIS
       #include <liburing.h>

       int io_uring_register_clock(struct io_uring *ring,
                                   struct io_uring_clock_register *arg);

DESCRIPTION
       The io_uring_register_clock(3) function registers which clock source
       should be used by io_uring, when an application waits for event
       completions. The ring argument should point to the ring in question,
       and the arg argument should be a pointer to a struct
       io_uring_clock_register .

       The arg argument must be filled in with the appropriate information. It
       looks as follows:

           struct io_uring_clock_register {
               __u32 clockid;
               __u32 __resv[3];
           };

       The clockid field must contain the clock source, with valid sources
       being:

       CLOCK_MONOTONIC
              a nonsettable system-wide clock that represents monotonic time.

       CLOCK_BOOTTIME
              A nonsettable system-wide clock that is identical to
              CLOCK_MONOTONIC , except that is also icnludes any time that the
              system is suspended.

       See clock_gettime(3) for more details.

       The __resv fields must be filled with zeroes.

       Available since 6.12.


RETURN VALUE
       On success io_uring_register_clock(3) returns 0. On failure it returns
       -errno.

SEE ALSO
       clock_gettime(3), io_uring_register(2), io_uring_wait_cqe(3),
       io_uring_wait_cqe_timeout(3),

liburing-2.8                    August 18, 2024     io_uring_register_clock(3)