Introduce Control streams for HTTP/3.
gfe-relnote: n/a --unused code.
PiperOrigin-RevId: 242161401
Change-Id: I29928112a479348ef66636b442ea6065bd832194
diff --git a/quic/core/http/quic_send_control_stream.h b/quic/core/http/quic_send_control_stream.h
new file mode 100644
index 0000000..09bdafb
--- /dev/null
+++ b/quic/core/http/quic_send_control_stream.h
@@ -0,0 +1,47 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef QUICHE_QUIC_CORE_HTTP_QUIC_SEND_CONTROL_STREAM_H_
+#define QUICHE_QUIC_CORE_HTTP_QUIC_SEND_CONTROL_STREAM_H_
+
+#include "net/third_party/quiche/src/quic/core/http/http_encoder.h"
+#include "net/third_party/quiche/src/quic/core/quic_stream.h"
+#include "net/third_party/quiche/src/quic/platform/api/quic_export.h"
+
+namespace quic {
+
+class QuicSpdySession;
+
+// 3.2.1 Control Stream.
+// The send control stream is self initiated and is write only.
+class QUIC_EXPORT_PRIVATE QuicSendControlStream : public QuicStream {
+ public:
+ // |session| can't be nullptr, and the ownership is not passed. The stream can
+ // only be accessed through the session.
+ explicit QuicSendControlStream(QuicStreamId id, QuicSpdySession* session);
+ QuicSendControlStream(const QuicSendControlStream&) = delete;
+ QuicSendControlStream& operator=(const QuicSendControlStream&) = delete;
+ ~QuicSendControlStream() override = default;
+
+ // Overriding QuicStream::OnStreamReset to make sure control stream is never
+ // closed before connection.
+ void OnStreamReset(const QuicRstStreamFrame& frame) override;
+
+ // Send |settings| on this stream.
+ // Settings frame must be the first frame sent on this stream.
+ void SendSettingsFrame(const SettingsFrame& settings);
+
+ // The send control stream is write unidirectional, so this method should
+ // never be called.
+ void OnDataAvailable() override { QUIC_NOTREACHED(); }
+
+ private:
+ HttpEncoder encoder_;
+ // Track if a settings frame is already sent.
+ bool settings_sent_;
+};
+
+} // namespace quic
+
+#endif // QUICHE_QUIC_CORE_HTTP_QUIC_SEND_CONTROL_STREAM_H_
