Module qlog 

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

HTTP/3 qlog events, recorded through the QUIC connection’s qlog sink.

A recorder writes these events only when started with QlogConfig::with_event_schemas(EVENT_SCHEMAS); a custom sink receives the schemas it accepts through QlogSink::accepts_named. Events carry protocol metadata only, never field names, values, paths or payloads; the one value logged is a PRIORITY_UPDATE frame’s priority field. Events a peer can trigger at will, ignored frames and QPACK instructions, have a per-connection budget; exhausting it is recorded once as rama_h3:events_suppressed.

Covered: SETTINGS, stream types, control frames, HTTP Datagrams, Capsules and QPACK instructions and field sections. HEADERS frames are omitted since their standard event requires field names. Peer stream types read before SETTINGS are applied are reported once SETTINGS are applied.

Schemas: HTTP/3 events draft 13 and Rama’s own QPACK schema.

Constants

EVENT_SCHEMAS

Every schema emitted by HTTP/3, for QlogConfig::with_event_schemas.

EVENT_SCHEMA_HTTP

Capsule events from HTTP qlog draft 13, a separate namespace from HTTP/3 events.

EVENT_SCHEMA_HTTP3

HTTP/3 events draft 13.

EVENT_SCHEMA_QPACK

Explicit private QPACK schema, to register alongside HTTP/3 and QUIC schemas.

EVENT_SCHEMA_RAMA_H3

Rama’s own HTTP/3 events, such as suppressed peer-triggered events.