Struct Encoder 

pub struct Encoder { /* private fields */ }

Available on crate features http-backend and http and std only.

Stateful encoder for one connection. Dynamic insertion and references fall back to literals when budgets are exhausted; invalid/oversized input fails before any state changes.

Implementations

impl Encoder

pub fn new(config: EncoderConfig) -> Encoder

Create an encoder with the peer settings and local budgets.

pub fn known_received_count(&self) -> u64

Number of insertions acknowledged by the peer.

pub fn insert_count(&self) -> u64

Number of dynamic entries inserted over the connection lifetime.

pub fn tracked_section_count(&self) -> usize

Number of sections awaiting acknowledgment.

pub fn tracked_reference_count(&self) -> usize

Number of outstanding references retained for acknowledgment/cancellation.

pub fn encoder_stream_len(&self) -> usize

Number of queued encoder-stream bytes.

pub fn take_encoder_stream(&mut self) -> Bytes

Take queued encoder-stream bytes in order.

pub fn encode<I, F, N, V>( &mut self, stream_id: u64, fields: I, ) -> Result<Bytes, QpackError>

where I: IntoIterator<Item = F>, F: Into<EncodeField<N, V>>, N: AsRef<[u8]>, V: AsRef<[u8]>,

Encode ordered fields for a HEADERS/PUSH_PROMISE payload. Tuples represent ordinary fields; EncodeField or decoded FieldPair values preserve sensitivity.

Input size and stream ID are validated before any connection state changes. A tracking or encoder-output budget prevents optional dynamic compression rather than failing the section.

pub fn on_decoder_instruction( &mut self, inst: DecoderInstruction, ) -> Result<(), QpackError>

Apply one decoded feedback instruction (RFC 9204 §4.4).

pub fn feed_decoder_stream(&mut self, input: &[u8]) -> Result<(), QpackError>

Process arbitrarily fragmented decoder-stream bytes, retaining at most eleven bytes of one incomplete instruction. Complete instructions before a malformed one remain applied.

pub fn is_at_decoder_instruction_boundary(&self) -> bool

Whether feedback ends on an instruction boundary. The connection driver handles critical stream closure; this reports a partial instruction for diagnostics and incremental tests.