Struct dds_sample_info 

#[repr(C)]
pub struct dds_sample_info {
    pub sample_state: dds_sample_state_t,
    pub view_state: dds_view_state_t,
    pub instance_state: dds_instance_state_t,
    pub valid_data: bool,
    pub source_timestamp: dds_time_t,
    pub instance_handle: dds_instance_handle_t,
    pub publication_handle: dds_instance_handle_t,
    pub disposed_generation_count: u32,
    pub no_writers_generation_count: u32,
    pub sample_rank: u32,
    pub generation_rank: u32,
    pub absolute_generation_rank: u32,
}

Contains information about the associated data value

Fields

sample_state: dds_sample_state_t

Sample state

view_state: dds_view_state_t

View state

instance_state: dds_instance_state_t

Instance state

valid_data: bool

Indicates whether there is a data associated with a sample

• true, indicates the data is valid
• false, indicates the data is invalid, no data to read

source_timestamp: dds_time_t

timestamp of a data instance when it is written

instance_handle: dds_instance_handle_t

handle to the data instance

publication_handle: dds_instance_handle_t

handle to the publisher

disposed_generation_count: u32

count of instance state change from NOT_ALIVE_DISPOSED to ALIVE

no_writers_generation_count: u32

count of instance state change from NOT_ALIVE_NO_WRITERS to ALIVE

sample_rank: u32

indicates the number of samples of the same instance that follow the current one in the collection

generation_rank: u32

difference in generations between the sample and most recent sample of the same instance that appears in the returned collection

absolute_generation_rank: u32

difference in generations between the sample and most recent sample of the same instance when read/take was called

Trait Implementations

impl Clone for dds_sample_info

fn clone(&self) -> dds_sample_info

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for dds_sample_info

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

Formats the value using the given formatter.

impl Default for dds_sample_info

fn default() -> Self

Returns the “default value” for a type.

impl Copy for dds_sample_info