Struct Context 

pub struct Context { /* private fields */ }

The current span context and baggage, captured to carry across threads: Context::attach it on another thread (or around an async block run elsewhere) and spans started there become children of the captured span. rws does this itself for AsyncAppWithState handlers.

Implementations

impl Context

pub fn current() -> Context

The innermost active span on this thread (empty if none).

pub fn is_empty(&self) -> bool

Whether there’s a span in it.

pub fn attach(&self) -> ContextGuard

Make this context current on this thread until the guard drops.

Trait Implementations

impl Clone for Context

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for Context

fn default() -> Self

Returns the “default value” for a type.