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PacketLengthStrategy

Enum PacketLengthStrategy 

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pub enum PacketLengthStrategy {
    Fixed(usize),
    LengthByte {
        index: usize,
        offset: usize,
    },
}
Expand description

Stratégie utilisée pour déterminer la longueur totale d’une trame.

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Fixed(usize)

La trame a une longueur totale fixe (en-tête inclus).

§Exemple

Pour un protocole dont chaque trame fait toujours 8 octets :

let strategy = PacketLengthStrategy::Fixed(8);
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LengthByte

Un octet situé à la position index dans le buffer indique le nombre d’octets restants après lui-même. offset est ajouté à cette valeur pour obtenir la longueur totale de la trame.

Longueur totale = buffer[index] as usize + offset

§Exemple

Pour un protocole dont l’octet à l’index 2 indique la taille du payload, et où la trame totale inclut 3 octets de structure supplémentaires (en-tête + octet de longueur + CRC) :

let strategy = PacketLengthStrategy::LengthByte { index: 2, offset: 3 };

Fields

§index: usize

Position de l’octet de longueur dans le buffer (base 0).

§offset: usize

Valeur ajoutée à l’octet de longueur pour obtenir la longueur totale.

Trait Implementations§

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impl Clone for PacketLengthStrategy

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fn clone(&self) -> PacketLengthStrategy

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 PacketLengthStrategy

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impl Debug for PacketLengthStrategy

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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 PacketLengthStrategy

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impl PartialEq for PacketLengthStrategy

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

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 StructuralPartialEq for PacketLengthStrategy

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, 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.