Add Qpack stream classes.
The streams are now stand-alone. They will be connected to QuicSpdySession in
follow up CLs.
gfe-relnote: n/a --unused code.
PiperOrigin-RevId: 253243356
Change-Id: I23ca96ac64de16fe4f353a6801882dcbff93c998
diff --git a/quic/core/qpack/qpack_send_stream.h b/quic/core/qpack/qpack_send_stream.h
new file mode 100644
index 0000000..dab4fd0
--- /dev/null
+++ b/quic/core/qpack/qpack_send_stream.h
@@ -0,0 +1,47 @@
+// Copyright 2019 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_QPACK_QPACK_SEND_STREAM_H_
+#define QUICHE_QUIC_CORE_QPACK_QPACK_SEND_STREAM_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;
+
+// QPACK 4.2.1 Encoder and Decoder Streams.
+// The QPACK send stream is self initiated and is write only.
+class QUIC_EXPORT_PRIVATE QpackSendStream : public QuicStream {
+ public:
+ // |session| can't be nullptr, and the ownership is not passed. |session| owns
+ // this stream.
+ QpackSendStream(QuicStreamId id,
+ QuicSpdySession* session,
+ uint64_t stream_type);
+ QpackSendStream(const QpackSendStream&) = delete;
+ QpackSendStream& operator=(const QpackSendStream&) = delete;
+ ~QpackSendStream() override = default;
+
+ // Overriding QuicStream::OnStreamReset to make sure QPACK stream is
+ // never closed before connection.
+ void OnStreamReset(const QuicRstStreamFrame& frame) override;
+
+ // The send QPACK stream is write unidirectional, so this method
+ // should never be called.
+ void OnDataAvailable() override { QUIC_NOTREACHED(); }
+
+ // Writes the instructions to peer. The stream type will be sent
+ // before the first instruction so that the peer can open an qpack stream.
+ void WriteStreamData(QuicStringPiece data);
+
+ private:
+ const uint64_t stream_type_;
+ bool stream_type_sent_;
+};
+
+} // namespace quic
+
+#endif // QUICHE_QUIC_CORE_QPACK_QPACK_SEND_STREAM_H_
