Struct InstanceHandle 

pub struct InstanceHandle(/* private fields */);

Opaker InstanceHandle_t (DDS-DCPS 1.4 §2.3.3).

Implementations

impl InstanceHandle

pub const NIL: Self

Reservierter “kein Handle”-Wert (Spec-Konvention).

pub const fn from_raw(raw: u64) -> Self

Konstruktor aus einem rohen u64-Wert. Niedrige API — ueblicherweise erzeugt der InstanceHandleAllocator die Werte.

pub const fn as_raw(&self) -> u64

Roher Wert.

pub const fn is_nil(&self) -> bool

true wenn der Handle Self::NIL ist.

pub fn from_guid(guid: Guid) -> Self

Deterministische Ableitung eines InstanceHandle aus einem Guid (16 Byte BuiltinTopicKey). Wird fuer ignore_*-/get_discovered_*-APIs (DDS DCPS 1.4 §2.2.2.2.1.14-17, §2.2.2.2.1.27-30) verwendet, weil die Spec dort InstanceHandle_t als Argument verlangt, der Builtin- Subscriber aber BuiltinTopicKey_t (=Guid) als Sample-Key fuehrt.

Implementation: 64-bit FNV-1a ueber alle 16 Bytes — schnell, no_std, kollisionsarm fuer einige tausend Discovered Entities. HANDLE_NIL wird durch Anheben auf 1 vermieden.

Trait Implementations

impl Clone for InstanceHandle

fn clone(&self) -> InstanceHandle

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for InstanceHandle

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

Formats the value using the given formatter.

impl Default for InstanceHandle

fn default() -> InstanceHandle

Returns the “default value” for a type.

impl Display for InstanceHandle

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

Formats the value using the given formatter.

impl Hash for InstanceHandle

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

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for InstanceHandle

fn cmp(&self, other: &InstanceHandle) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for InstanceHandle

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd for InstanceHandle

fn partial_cmp(&self, other: &InstanceHandle) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for InstanceHandle

impl Eq for InstanceHandle

impl StructuralPartialEq for InstanceHandle