Trait RwndTrace

Source

pub trait RwndTrace: Send {
    // Required method
    fn next_rwnd(&mut self) -> Option<(RwndDecision, Duration)>;
}

Expand description

This is a trait that represents a trace of receive-window decisions over time.

The trace is a sequence of (rwnd_decision, duration) pairs. The decision describes how the socket’s receive buffer, the application’s read behavior, and/or the observed remaining window change at this step; the duration is how long this configuration lasts before the next step applies.

For example, if the sequence is [(set_rcv_buf=64KB, app_read=1KB, 1s), (rwnd_remaining=32KB, 2s)], then the receive buffer is resized to 64KB and the app reads 1KB for 1s, then the observed rwnd becomes 32KB for 2s.

Each next_rwnd call returns the next decision and its duration in the sequence, or None when the trace is exhausted. Mirrors the shape of BwTrace, DelayTrace, and LossTrace.