Struct Info 

pub struct Info {
    pub state: State,
    pub source_timestamp: Time,
    pub instance_handle: InstanceHandle,
    pub publication_handle: InstanceHandle,
    pub disposed_generation_count: u32,
    pub no_writers_generation_count: u32,
    pub sample_rank: u32,
    pub generation_rank: u32,
    pub absolute_generation_rank: u32,
}

Metadata associated with a received sample.

Attached to every SampleOrKey and carries the metadata related to the transmission of the sample.

The valid_data flag from the DDS specification is not present here as it is encoded structurally in the type system via SampleOrKey. A View::Sample variant guarantees valid data and a View::Key variant guarantees the absence of it.

Fields

state: State

sample, view, and instance state flags at the time of receipt.

source_timestamp: Time

Timestamp at which the sample was written by the publisher.

instance_handle: InstanceHandle

Handle identifying the instance this sample belongs to.

publication_handle: InstanceHandle

Handle identifying the writer that published this sample.

disposed_generation_count: u32

Number of times the instance was disposed before this sample was received.

no_writers_generation_count: u32

Number of times the instance transitioned to the no-writers state before this sample was received.

sample_rank: u32

Position of this sample relative to other samples for the same instance in the current read or take call.

generation_rank: u32

Difference in generation count between this sample and the most recent sample for the same instance in the current read or take call.

absolute_generation_rank: u32

Difference in generation count between this sample and the most recent sample for the same instance in the reader’s cache.

Trait Implementations

impl Clone for Info

fn clone(&self) -> Info

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Info

impl Debug for Info

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

Formats the value using the given formatter.

impl Eq for Info

impl From<&dds_sample_info> for Info

fn from(sample_info: &dds_sample_info) -> Self

Converts to this type from the input type.

impl Hash for Info

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 PartialEq for Info

fn eq(&self, other: &Info) -> 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 Info