Enum QoSDurabilityPolicy 

pub enum QoSDurabilityPolicy {
    SystemDefault,
    Volatile,
    TransientLocal,
}

QoS durability policy

Variants

SystemDefault

The caller did not state a durability policy — the backend picks. Upstream’s RMW_QOS_POLICY_DURABILITY_SYSTEM_DEFAULT; lowers to NROS_RMW_DURABILITY_SYSTEM_DEFAULT (0) across the C ABI.

See QoSSystemDefaults.

Volatile

Messages are discarded when subscriber disconnects

TransientLocal

Messages are persisted for late-joining subscribers

Trait Implementations

impl Clone for QoSDurabilityPolicy

fn clone(&self) -> QoSDurabilityPolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for QoSDurabilityPolicy

impl Debug for QoSDurabilityPolicy

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

Formats the value using the given formatter.

impl Default for QoSDurabilityPolicy

fn default() -> QoSDurabilityPolicy

Returns the “default value” for a type.

impl Eq for QoSDurabilityPolicy

impl PartialEq for QoSDurabilityPolicy

fn eq(&self, other: &QoSDurabilityPolicy) -> 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 StructuralPartialEq for QoSDurabilityPolicy