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CodePolicy

Enum CodePolicy 

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pub enum CodePolicy {
    Auto {
        up_q8: u8,
        down_q8: u8,
    },
    ForceRlc,
    ForceRs,
}
Expand description

How the unified transport selects its erasure code.

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Auto

Loss-driven with hysteresis. up_q8 / down_q8 are forward-loss thresholds (quantized loss * 256, matching the FEEDBACK frame): switch RLC -> RS when loss sustains above up_q8, RS -> RLC when it sustains below down_q8. up_q8 > down_q8 is the hysteresis band.

Fields

§up_q8: u8
§down_q8: u8
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ForceRlc

Force the sliding-window RLC code regardless of loss (operator override).

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ForceRs

Force the block Reed-Solomon code regardless of loss (operator override).

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impl CodePolicy

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pub fn default_auto() -> Self

The default loss-driven policy, thresholds set from the measured crossover with RS provisioned to cover the loss: switch UP to RS at ~15% (q8 = CROSSOVER_LOSS_Q8 = 38, where RS overtakes RLC on both throughput and bounded tail latency) and back DOWN to RLC at ~10% (q8 = 26). RLC keeps the sub-crossover regime for its lower TTFD / median; the ~5-point hysteresis band keeps a loss level hovering at the boundary from flapping the code.

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pub fn initial_code(&self) -> SensCode

The code this policy starts a connection on. Auto and ForceRlc start on RLC (the low-latency primary); ForceRs starts on RS.

Trait Implementations§

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impl Clone for CodePolicy

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fn clone(&self) -> CodePolicy

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 CodePolicy

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impl Debug for CodePolicy

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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 CodePolicy

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impl PartialEq for CodePolicy

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

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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.