Struct TopicInfo 

pub struct TopicInfo<'a> {
    pub name: &'a str,
    pub type_name: &'a str,
    pub type_hash: &'a str,
    pub domain_id: u32,
    pub node_name: Option<&'a str>,
    pub namespace: &'a str,
    pub rx_buffer_hint: usize,
}

Topic information for pub/sub

Fields

name: &'a str

Topic name (e.g., “/chatter”)

type_name: &'a str

ROS type name (e.g., “std_msgs::msg::dds_::String_”)

type_hash: &'a str

Type hash for compatibility checking

domain_id: u32

Domain ID (default: 0)

node_name: Option<&'a str>

Node name for liveliness token generation. None means no node association — no liveliness token will be declared.

namespace: &'a str

Node namespace for liveliness token generation (default: “/”). In ROS 2, “/” is the root namespace and the standard default.

rx_buffer_hint: usize

Phase 231 (RFC-0038) — receive-buffer size hint, bytes. The executor sets this from the subscription’s RX_BUF; a backend may use it to route the subscription to a size-class receive buffer (zenoh-pico: small vs large). 0 = unset (backend picks its default). Ignored by backends that don’t size-class their receive storage.

Implementations

impl<'a> TopicInfo<'a>

pub const fn new( name: &'a str, type_name: &'a str, type_hash: &'a str, ) -> TopicInfo<'a>

Create new topic info

pub const fn with_domain(self, domain_id: u32) -> TopicInfo<'a>

Create topic info with custom domain ID

pub const fn with_rx_buffer_hint(self, hint: usize) -> TopicInfo<'a>

Phase 231 (RFC-0038) — set the receive-buffer size hint (bytes) used by size-classing backends (zenoh-pico) to route the subscription’s receive buffer to the small or large class.

pub const fn with_node_name(self, node_name: &'a str) -> TopicInfo<'a>

Set the node name for liveliness token generation

pub const fn with_namespace(self, namespace: &'a str) -> TopicInfo<'a>

Set the node namespace for liveliness token generation

Trait Implementations

impl<'a> Clone for TopicInfo<'a>

fn clone(&self) -> TopicInfo<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for TopicInfo<'a>

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

Formats the value using the given formatter.