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AeronStatusTracker

Struct AeronStatusTracker 

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pub struct AeronStatusTracker { /* private fields */ }
Expand description

Status transition tracker that emits only when the observed AeronStatus differs from the previously recorded state.

Mirrors the reactive side-channel pattern in wingfoil’s AeronStatusStream, useful for driving application-level state machines (e.g. reconnect logic, UI indicators) that need to react to connection changes without polling.

§Example

// (illustrative — `publication.status()` needs a live handle; see the
//  `aeron_custom_tests` unit tests for runnable pure-Rust assertions)
let mut tracker = AeronStatusTracker::new();
tracker.observe(publication.status()); // emits `Some(Disconnected)`
// ... connection establishes ...
tracker.observe(publication.status()); // emits `Some(Connected)`
tracker.observe(publication.status()); // emits `None` (no change)

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impl AeronStatusTracker

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pub const fn new() -> Self

Create a new tracker with no initial state.

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pub fn observe(&mut self, status: AeronStatus) -> Option<AeronStatus>

Observe a status, returning Some(status) if this is a transition from the previous state (or the first observation), None if the status is unchanged.

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pub fn reset(&mut self)

Reset the tracker, causing the next call to observe to emit even if the status matches the previously-observed value.

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pub const fn last_status(&self) -> Option<AeronStatus>

The most recent status observed, if any.

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impl Clone for AeronStatusTracker

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fn clone(&self) -> AeronStatusTracker

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for AeronStatusTracker

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

Formats the value using the given formatter. Read more
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impl Default for AeronStatusTracker

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl PartialEq for AeronStatusTracker

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

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impl Eq for AeronStatusTracker

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impl StructuralPartialEq for AeronStatusTracker

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.