Module frame 

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

A bounded, incremental HTTP/3 frame decoder (RFC 9114 §7.1).

Bytes are fed in arbitrary chunks; complete frames come out one at a time, with a “need more” signal in between. It distinguishes incomplete input (need more), malformed input (a protocol error) and a truncated end of stream (via FrameDecoder::is_at_frame_boundary).

Memory is bounded: DATA payloads are streamed rather than buffered, unknown and reserved frame payloads are skipped without allocating their advertised length by default. Explicit payload observation buffers only complete frames within its budget; larger ignored frames still stream past. Every buffered known frame is rejected before buffering if it exceeds the configured cap. Frame type and length are read with a fragmentation-safe variable-length integer decoder, so a length split across chunks never loses framing.

Structs

FrameDecoder

A bounded, incremental HTTP/3 frame decoder.

Enums

FrameError

An error decoding an HTTP/3 frame.

FrameEvent

An event produced by FrameDecoder::poll.

Constants

DEFAULT_MAX_FRAME_SIZE

The default cap on a single buffered (non-DATA) frame’s payload.