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StreamKey

Struct StreamKey 

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pub struct StreamKey {
    pub side: ProxySide,
    pub id: u64,
}
Expand description

Identifies one forwarded stream within a session.

A session-local monotonic id, minted from one counter per session at the moment the session accepts the stream, plus the side it arrived on. Unique for the session’s lifetime and never reused.

Deliberately not a media key: subgroup_id is absent on eight drafts and track_alias on every fetch stream, so a media-keyed serialize would silently miss.

Deliberately not the transport stream id either. On the WebTransport arm SendStream::stream_id() is the constant 0 (moqtap-client/src/transport/mod.rs:133-137), and the proxy really does accept WebTransport clients — so a transport-keyed StreamKey collapses every WT stream onto one entry per side. A serialize would then attach a stream to an arbitrary sibling, or to itself, which is a self-deadlock that degrades to a max_hold stall, and every per-stream report becomes unattributable.

The transport id is still worth reporting where it means something, so it stays a separate field on the events that carry both. Hash is hand-written because ProxySide does not derive it and lives in a module this type may not edit. It hashes the side’s discriminant, so it agrees with the derived PartialEq exactly: equal keys hash equal, which is the whole obligation.

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§side: ProxySide

The direction the stream was accepted on.

§id: u64

Session-local monotonic id. Never reused within a session, and not comparable across sessions.

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impl Clone for StreamKey

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fn clone(&self) -> StreamKey

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for StreamKey

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impl Debug for StreamKey

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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 Eq for StreamKey

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impl Hash for StreamKey

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

Feeds this value into the given Hasher. Read more
1.3.0 · Source§

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

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for StreamKey

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl StructuralPartialEq for StreamKey

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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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 = !

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.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more