Struct TimeSample

pub struct TimeSample {
    pub utc: Option<i64>,
    pub monotonic: Option<i64>,
    pub standard_deviation: Option<i64>,
    pub reference: Option<BootInstant>,
    /* private fields */
}

A correspondence pair that describes a UTC and the reference clock readings at the measurement instant.

Fields

utc: Option<i64>

The UTC time sample. The value of this instant is a value on the UTC timeline. However, the field is not type safe, as there is no UTC specific type on the zx level.

monotonic: Option<i64>

The monotonic time at which the sample was most valid. Must always be provided. DEPRECATED. Use reference below instead.

standard_deviation: Option<i64>

The standard deviation representing the error distribution of the UTC measurement. Must always be provided.

reference: Option<BootInstant>

The timestamp on the reference timeline at which the sample was most valid. Must always be provided. The reference timeline is tracking the rate of change of proper time 1. So, for example, Fuchsia’s boot timeline will generate the appropriate reference instant.

Trait Implementations

impl Clone for TimeSample

fn clone(&self) -> TimeSample

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TimeSample

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

Formats the value using the given formatter.

impl<D: ResourceDialect> Decode<TimeSample, D> for TimeSample

fn new_empty() -> Self

Creates a valid instance of Self. The specific value does not matter, since it will be overwritten by decode.

unsafe fn decode( &mut self, decoder: &mut Decoder<'_, D>, offset: usize, depth: Depth, ) -> Result<()>

Decodes an object of type T from the decoder’s buffers into self.

impl Default for TimeSample

fn default() -> TimeSample

Returns the “default value” for a type.

impl<D: ResourceDialect> Encode<TimeSample, D> for &TimeSample

unsafe fn encode( self, encoder: &mut Encoder<'_, D>, offset: usize, depth: Depth, ) -> Result<()>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID.

impl PartialEq for TimeSample

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TypeMarker for TimeSample

type Owned = TimeSample

The owned Rust type which this FIDL type decodes into.

fn inline_align(_context: Context) -> usize

Returns the minimum required alignment of the inline portion of the encoded object. It must be a (nonzero) power of two.

fn inline_size(_context: Context) -> usize

Returns the size of the inline portion of the encoded object, including padding for alignment. Must be a multiple of inline_align.

fn encode_is_copy() -> bool

Returns true if the memory layout of Self::Owned matches the FIDL wire format and encoding requires no validation. When true, we can optimize encoding arrays and vectors of Self::Owned to a single memcpy.

fn decode_is_copy() -> bool

Returns true if the memory layout of Self::Owned matches the FIDL wire format and decoding requires no validation. When true, we can optimize decoding arrays and vectors of Self::Owned to a single memcpy.

impl ValueTypeMarker for TimeSample

type Borrowed<'a> = &'a TimeSample

The Rust type to use for encoding. This is a particular Encode<Self> type cheaply obtainable from &Self::Owned. There are three cases:

fn borrow(value: &<Self as TypeMarker>::Owned) -> Self::Borrowed<'_>

Cheaply converts from &Self::Owned to Self::Borrowed.

impl Persistable for TimeSample

impl StructuralPartialEq for TimeSample