Enum gstreamer::PromiseResult

#[non_exhaustive]
pub enum PromiseResult {
    Pending,
    Interrupted,
    Replied,
    Expired,
}

The result of a Promise

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Pending

Initial state. Waiting for transition to any other state.

Interrupted

Interrupted by the consumer as it doesn’t want the value anymore.

Replied

A producer marked a reply

Expired

The promise expired (the carrying object lost all refs) and the promise will never be fulfilled.

Trait Implementations

impl Clone for PromiseResult

fn clone(&self) -> PromiseResult

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PromiseResult

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

Formats the value using the given formatter.

impl From<PromiseResult> for Value

fn from(v: PromiseResult) -> Self

Converts to this type from the input type.

impl<'a> FromValue<'a> for PromiseResult

type Checker = GenericValueTypeChecker<PromiseResult>

Value type checker.

unsafe fn from_value(value: &'a Value) -> Self

Get the contained value from a Value.

impl HasParamSpec for PromiseResult

type ParamSpec = ParamSpecEnum

type SetValue = PromiseResult

Preferred value to be used as setter for the associated ParamSpec.

type BuilderFn = fn(_: &str, _: PromiseResult) -> ParamSpecEnumBuilder<'_, PromiseResult>

fn param_spec_builder() -> Self::BuilderFn

impl Hash for PromiseResult

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for PromiseResult

fn cmp(&self, other: &PromiseResult) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for PromiseResult

fn eq(&self, other: &PromiseResult) -> 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 PartialOrd for PromiseResult

fn partial_cmp(&self, other: &PromiseResult) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StaticType for PromiseResult

fn static_type() -> Type

Returns the type identifier of Self.

impl ToValue for PromiseResult

fn to_value(&self) -> Value

Convert a value to a Value.

fn value_type(&self) -> Type

Returns the type identifier of self.

impl ValueType for PromiseResult

type Type = PromiseResult

Type to get the Type from.

impl Copy for PromiseResult

impl Eq for PromiseResult

impl StructuralPartialEq for PromiseResult