Struct DeviceState 

pub struct DeviceState {
    pub sample_rate: f64,
    pub running: bool,
}

The mutable runtime state of a device, distinct from the immutable DeviceSpec the driver declared.

A DeviceSpec says what a device is; a DeviceState says what it is currently doing — the sample rate it is running at (which the HAL can change via kAudioDevicePropertyNominalSampleRate) and whether its IO is running. The property dispatcher reads it for the handful of properties whose value is not fixed at construction.

Fields

sample_rate: f64

The sample rate the device is currently running at, in hertz. Starts at the spec’s nominal rate; the HAL may change it.

running: bool

true once the HAL has started the device’s IO (StartIO), false before that and after StopIO.

Implementations

impl DeviceState

pub fn from_spec(spec: &DeviceSpec) -> Self

The initial runtime state for spec: its nominal sample rate, IO not yet running.

Trait Implementations

impl Clone for DeviceState

fn clone(&self) -> DeviceState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DeviceState

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

Formats the value using the given formatter.

impl PartialEq for DeviceState

fn eq(&self, other: &DeviceState) -> 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 Copy for DeviceState

impl StructuralPartialEq for DeviceState