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// Copyright (c) 2016 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.
#include <ostream>
#include "quic/core/quic_constants.h"
#include "quic/core/quic_types.h"
namespace quic {
// Flow control updates per-stream and at the connection level.
// Based on SPDY's WINDOW_UPDATE frame, but uses an absolute max data bytes
// rather than a window delta.
struct QUIC_EXPORT_PRIVATE QuicWindowUpdateFrame {
QuicWindowUpdateFrame() = default;
QuicWindowUpdateFrame(QuicControlFrameId control_frame_id,
QuicStreamId stream_id,
QuicByteCount max_data);
friend QUIC_EXPORT_PRIVATE std::ostream& operator<<(
std::ostream& os,
const QuicWindowUpdateFrame& w);
// A unique identifier of this control frame. 0 when this frame is received,
// and non-zero when sent.
QuicControlFrameId control_frame_id = kInvalidControlFrameId;
// The stream this frame applies to. 0 is a special case meaning the overall
// connection rather than a specific stream.
QuicStreamId stream_id = 0;
// Maximum data allowed in the stream or connection. The receiver of this
// frame must not send data which would exceedes this restriction.
QuicByteCount max_data = 0;
} // namespace quic