Enum UsageState 

pub enum UsageState {
    Unadjusted(UsageStateUnadjusted),
    Ducked(UsageStateDucked),
    Muted(UsageStateMuted),
    // some variants omitted
}

The state of audio policy enforcement on a stream or set of streams.

Variants

Unadjusted(UsageStateUnadjusted)

Ducked(UsageStateDucked)

Muted(UsageStateMuted)

Implementations

impl UsageState

pub fn ordinal(&self) -> u64

pub fn unknown_variant_for_testing() -> UsageState

pub fn is_unknown(&self) -> bool

Trait Implementations

impl Clone for UsageState

fn clone(&self) -> UsageState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UsageState

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

Formats the value using the given formatter.

impl<D> Decode<UsageState, D> for UsageState

where D: ResourceDialect,

fn new_empty() -> UsageState

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<(), Error>

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

impl<D> Encode<UsageState, D> for &UsageState

where D: ResourceDialect,

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

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

impl PartialEq for UsageState

fn eq(&self, other: &UsageState) -> 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 UsageState

type Owned = UsageState

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 UsageState

type Borrowed<'a> = &'a UsageState

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: &<UsageState as TypeMarker>::Owned, ) -> <UsageState as ValueTypeMarker>::Borrowed<'_>

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

impl Persistable for UsageState