86c633a893
This commit ensures that streams which was closed in on_stream_close callback gets passed to http2_handle_stream_close. Previously, this might not happen. To achieve this, we increment drain property to forcibly call recv function for that stream. To more accurately check that we have no pending event before shutting down HTTP/2 session, we sum up drain property into http_conn.drain_total. We only shutdown session if that value is 0. With this commit, when stream was closed before reading response header fields, error code CURLE_HTTP2_STREAM is returned even if HTTP/2 level error is NO_ERROR. This signals the upper layer that stream was closed by error just like TCP connection close in HTTP/1. Ref: https://github.com/curl/curl/issues/659 Ref: https://github.com/curl/curl/pull/663
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