tree 8694183541096efcecd03ce32aaec1df592cb6ec
parent 662bd8e3f72beb89a8ac9577158f347ba10adc1e
author diannahu <diannahu@google.com> 1648496221 -0700
committer Copybara-Service <copybara-worker@google.com> 1648496309 -0700

Allow NgHttp2Adapter to remove `sources_` map entries via CallbackVisitor.

This CL introduces NgHttp2Adapter::RemoveStream() and
CallbackVisitor::set_stream_close_listener() that can be used together to
remove entries from the per-stream `sources_` map when a stream is closed.
Namely, CallbackVisitor::set_stream_close_listener() can be called with a
lambda that invokes NgHttp2Adapter::RemoveStream() in codec_impl.cc.

This CL has a positive effect on memory profiles in loadtests for addressing
go/envoy-upstream/issues/19761.

PiperOrigin-RevId: 437827219