tree 8bba95c3b9383242e742edb703576ccab5993849
parent 3bcbab3f74ef4651264aef8be5fc76d0495943cd
author Damien Neil <dneil@google.com> 1635528190 -0700
committer Damien Neil <dneil@google.com> 1645809769 +0000

http2: improve handling of slow-closing net.Conns

Closing a *tls.Conn can write to the network, blocking indefinitely.

Don't hold cc.mu while closing Conns. If closing a *tls.Conn takes too
long (arbitrarily set at 250ms), try to acquire the underlying net.Conn
(Go 1.18+) and close it instead.

Change-Id: Ib4e4a26595108eba9cd767231c727fd9412658b5
Reviewed-on: https://go-review.googlesource.com/c/net/+/359636
Trust: Damien Neil <dneil@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Trust: Brad Fitzpatrick <bradfitz@golang.org>