Module extensions 

Available on crate feature net only.

Best-effort breadcrumbs marking that a stream has been transformed, such as moving into a decoding stream or lifted as a multiplex stream. Inserted by services that decode / terminate / multiplex an outer layer; observed by code that wants to either:

• trace what happened to a connection on its way through the stack, or
• act on the knowledge that the bytes here are no longer the raw bytes on the wire — e.g. to skip an optimisation that only applies to untouched connections.

Not a strict guarantee. Nothing enforces that every transformer inserts one. Compose your stack with care first; treat these as one slice in a Swiss-cheese defense and as handy trace breadcrumbs.

Structs

StreamMultiplexed

This point sees one of several logical streams multiplexed over a shared underlying transport (HTTP/2, HTTP/3, gRPC).

StreamTransformed

A handshake / transition completed on this stream: from here the bytes (or their meaning) are no longer the raw wire form. Examples: TLS termination, HTTP upgrade, SOCKS5 handshake, HTTP/1 or HTTP/2 connection handshake.