Struct wayland_protocols::presentation_time::server::wp_presentation::WpPresentation

pub struct WpPresentation(_);

Implementations

impl WpPresentation

pub fn clock_id(&self, clk_id: u32)

clock ID for timestamps

This event tells the client in which clock domain the compositor interprets the timestamps used by the presentation extension. This clock is called the presentation clock.

The compositor sends this event when the client binds to the presentation interface. The presentation clock does not change during the lifetime of the client connection.

The clock identifier is platform dependent. On Linux/glibc, the identifier value is one of the clockid_t values accepted by clock_gettime(). clock_gettime() is defined by POSIX.1-2001.

Timestamps in this clock domain are expressed as tv_sec_hi, tv_sec_lo, tv_nsec triples, each component being an unsigned 32-bit value. Whole seconds are in tv_sec which is a 64-bit value combined from tv_sec_hi and tv_sec_lo, and the additional fractional part in tv_nsec as nanoseconds. Hence, for valid timestamps tv_nsec must be in [0, 999999999].

Note that clock_id applies only to the presentation clock, and implies nothing about e.g. the timestamps used in the Wayland core protocol input events.

Compositors should prefer a clock which does not jump and is not slewed e.g. by NTP. The absolute value of the clock is irrelevant. Precision of one millisecond or better is recommended. Clients must be able to query the current clock value directly, not by asking the compositor.

Trait Implementations

impl AsRef<Resource<WpPresentation>> for WpPresentation

fn as_ref(&self) -> &Resource<Self>

Performs the conversion.

impl Clone for WpPresentation

fn clone(&self) -> WpPresentation

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for WpPresentation

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Eq for WpPresentation

impl From<Resource<WpPresentation>> for WpPresentation

fn from(value: Resource<Self>) -> Self

Performs the conversion.

impl From<WpPresentation> for Resource<WpPresentation>

fn from(value: WpPresentation) -> Self

Performs the conversion.

impl Interface for WpPresentation

type Request = Request

Set of requests associated to this interface

type Event = Event

Set of events associated to this interface

const NAME: &'static str

Name of this interface

const VERSION: u32

Maximum supported version of this interface

fn c_interface() -> *const wl_interface

Pointer to the C representation of this interface

impl PartialEq<WpPresentation> for WpPresentation

fn eq(&self, other: &WpPresentation) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &WpPresentation) -> bool

This method tests for !=.

impl StructuralEq for WpPresentation

impl StructuralPartialEq for WpPresentation