Enum DurabilityKind 

#[repr(u32)]
pub enum DurabilityKind {
    Volatile = 0,
    TransientLocal = 1,
    Transient = 2,
    Persistent = 3,
}

Durability-QoS Kind.

Canonical in zerodds_qos::DurabilityKind; RTPS re-exports for backward compatibility. Durability kind (DDS 1.4 §2.2.3.4).

The order matches the ordering relation of the compatibility rule: VOLATILE < TRANSIENT_LOCAL < TRANSIENT < PERSISTENT. Spec §2.2.3 Table “QoS compatibility” requires offered.kind >= requested.kind.

Variants

Volatile = 0

Samples are volatile; late joiners see nothing.

TransientLocal = 1

The writer process holds samples for late joiners.

Transient = 2

A durability service holds samples beyond the writer’s lifetime.

Persistent = 3

Persistent storage.

Implementations

impl DurabilityKind

pub const fn from_u32(v: u32) -> DurabilityKind

Forward-compatible mapper: unknown values are mapped to Volatile (default). The strict mapper Self::try_from_u32 returns None for unknown values.

pub const fn try_from_u32(v: u32) -> Option<DurabilityKind>

Strict mapper (returns None for an unknown value).

Trait Implementations

impl Clone for DurabilityKind

fn clone(&self) -> DurabilityKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DurabilityKind

impl Debug for DurabilityKind

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

Formats the value using the given formatter.

impl Default for DurabilityKind

fn default() -> DurabilityKind

Returns the “default value” for a type.

impl Eq for DurabilityKind

impl Ord for DurabilityKind

fn cmp(&self, other: &DurabilityKind) -> 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 DurabilityKind

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for DurabilityKind

fn partial_cmp(&self, other: &DurabilityKind) -> 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 StructuralPartialEq for DurabilityKind