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UserSample

Enum UserSample 

Source
pub enum UserSample {
    Alive {
        payload: Vec<u8>,
        writer_guid: [u8; 16],
        writer_strength: i32,
    },
    Lifecycle {
        key_hash: [u8; 16],
        kind: ChangeKind,
    },
}
Expand description

Sample-Channel-Item: entweder Daten-Payload oder Lifecycle-Marker. Lifecycle wird vom Wire-Pfad als key_hash + ChangeKind aus dem PID_STATUS_INFO-Header rekonstruiert; der DataReader-DCPS-Layer uebersetzt das in __push_lifecycle.

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Alive

Normales Sample mit Payload (CDR-encoded Application-Type). writer_guid ist die 16-byte-GUID des emittierenden Writers — vom Subscriber fuer Exclusive-Ownership-Resolution (DDS 1.4 §2.2.3.23 / §2.2.2.5.5) gebraucht.

Fields

§payload: Vec<u8>

CDR-Payload (ohne Encapsulation-Header).

§writer_guid: [u8; 16]

Writer-GUID — fuer Strongest-Writer-Selection.

§writer_strength: i32

Writer-ownership_strength zum Zeitpunkt des Empfangs. 0 wenn der Writer noch nicht via Discovery bekannt ist (Reader behandelt das als Default-Strength = Spec-konform fuer Shared-Ownership-Topics; bei Exclusive filtert der Reader die echte Strength gegen den aktuellen Owner).

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Lifecycle

Lifecycle-Marker (dispose / unregister) — Reader setzt InstanceState entsprechend.

Fields

§key_hash: [u8; 16]

Key-Hash der betroffenen Instanz (16 byte).

§kind: ChangeKind

NotAliveDisposed / NotAliveUnregistered / NotAliveDisposedUnregistered.

Trait Implementations§

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impl Clone for UserSample

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fn clone(&self) -> UserSample

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 Debug for UserSample

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

Formats the value using the given formatter. Read more

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.