Struct CcFeedbackRecorder 

pub struct CcFeedbackRecorder { /* private fields */ }

Records packet arrivals per stream and builds feedback reports from them.

Implementations

impl CcFeedbackRecorder

pub fn new() -> Self

A recorder with nothing observed yet.

pub fn add_packet( &mut self, arrival: Instant, ssrc: u32, sequence_number: u16, ecn: Ecn, )

Note that a packet of ssrc arrived at arrival.

pub fn is_empty(&self) -> bool

Whether anything is waiting to be reported.

pub fn build_report( &mut self, now: Instant, sender_ssrc: u32, report_timestamp: u32, max_size: usize, ) -> CcFeedbackReport

Build a report of everything observed since the last one.

max_size is the byte budget for the whole report, shared evenly between streams: a report that does not fit the path’s MTU would be fragmented or dropped, and feedback that does not arrive is worse than feedback that describes fewer packets.

report_timestamp is the middle 32 bits of an NTP timestamp. It is supplied rather than read from a clock because a sans-I/O interceptor has none — shared::time::SystemInstant is how the caller converts the monotonic now into wall-clock time.

pub fn remove_stream(&mut self, ssrc: u32)

Forget a stream entirely.

Trait Implementations

impl Debug for CcFeedbackRecorder

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

Formats the value using the given formatter.

impl Default for CcFeedbackRecorder

fn default() -> CcFeedbackRecorder

Returns the “default value” for a type.