Struct Context 

pub struct Context {
    pub domain_id: u32,
    pub locator: String,
    pub mode: SessionMode,
    pub rmw: String,
    pub source: ContextSource,
}

Phase 212.L.5 — resolved init context.

Returned by every init* entry point. Carries the fields the user needs to construct an ExecutorConfig and open a session.

Fields are owned (String on hosted builds) so the Context can outlive transient parents (env caches, parsed launch files).

Fields

domain_id: u32

ROS 2 domain ID (ROS_DOMAIN_ID, default 0).

locator: String

Middleware locator (NROS_LOCATOR / legacy ZENOH_LOCATOR).

mode: SessionMode

Session mode (NROS_SESSION_MODE / legacy ZENOH_MODE, default Client).

rmw: String

RMW implementation hint (RMW_IMPLEMENTATION / NROS_RMW).

Empty when neither var is set. The runtime uses this to pick a primary backend when multiple are linked; see crate::internals::open_session.

source: ContextSource

Source of this context — useful for diagnostics + tests.

Implementations

impl Context

pub fn config<'a>(&'a self, node_name: &'a str) -> ExecutorConfig<'a>

Materialise an ExecutorConfig for a node with the given name.

The returned config borrows from self, so callers usually do:

let ctx = nros::init()?;
let cfg = ctx.config("talker");
let mut executor = nros::Executor::open(&cfg)?;

Trait Implementations

impl Clone for Context

fn clone(&self) -> Context

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Context

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

Formats the value using the given formatter.