tree dcb5cc567614e973f0167752b02a2765b3315462
parent 57553cbff16307d5178b250ad301e7b466f9d969
author Damien Neil <dneil@google.com> 1687904222 -0700
committer Damien Neil <dneil@google.com> 1689361395 +0000

quic: basic connection event loop

Add the Conn type, representing a QUIC connection.

A Conn's behavior is driven by an event loop goroutine.
This goroutine owns most Conn state. External events
(datagrams received, user operations such as writing to streams)
send events to the loop goroutine on a message channel.

The testConn type, used in tests, wraps a Conn and takes
control of its event loop. The testConn permits tests to
interact with a Conn synchronously, sending it events,
observing the result, and controlling the Conn's view
of time passing.

Add a very minimal implementation of connection idle timeouts
(RFC 9000, Section 10.1) to test the implementation of
synthetic time.

For golang/go#58547

Change-Id: Ic517e5e7bb019f4a677f892a807ca0417d6e19b1
Reviewed-on: https://go-review.googlesource.com/c/net/+/506678
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Damien Neil <dneil@google.com>
Reviewed-by: Jonathan Amsterdam <jba@google.com>