Struct RecordingContext 

pub struct RecordingContext {
    pub call_id: String,
    pub recorder: Arc<dyn Recorder>,
    /* private fields */
}

一次调用的录制上下文(RFC R7 快照绑定):层 A 入口构造一次, 随 CallOptions/HttpRequest 传到底层,禁止各录制点重读全局 recorder。

Fields

call_id: String

recorder: Arc<dyn Recorder>

Implementations

impl RecordingContext

pub fn new(call_id: impl Into<String>, recorder: Arc<dyn Recorder>) -> Self

pub fn child(&self, step: impl Into<String>) -> Self

Derive a context for one composite child step (Router child, MoA reference, or aggregator). The allocator stays shared with the parent so attempt numbers are unique across the whole call, while the current attempt and exchange counter are local to the child. An interleaved sibling cannot relabel an exchange that belongs to an in-flight attempt.

pub fn step(&self) -> Option<String>

The composite step label for exchanges recorded through this context.

pub fn start_attempt(&self) -> u32

Begin the next Core operation attempt and reset its exchange counter.

pub fn next_exchange(&self) -> (u32, u32)

Allocate the next exchange identity for the current attempt. Direct provider-SPI calls that bypass Core are recorded as attempt 1.

Trait Implementations

impl Clone for RecordingContext

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RecordingContext

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

Formats the value using the given formatter.