Man page - io_uring_register_clock(3)

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io_uring_register_clock

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
SEE ALSO

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),