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91 lines
3.1 KiB
C++
91 lines
3.1 KiB
C++
// Copyright (c) 2017 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef NET_THIRD_PARTY_QUIC_QUARTC_QUARTC_STREAM_H_
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#define NET_THIRD_PARTY_QUIC_QUARTC_QUARTC_STREAM_H_
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#include "net/third_party/quic/core/quic_session.h"
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#include "net/third_party/quic/core/quic_stream.h"
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#include "net/third_party/quic/platform/api/quic_export.h"
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#include "net/third_party/quic/platform/api/quic_mem_slice_span.h"
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namespace quic {
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// Sends and receives data with a particular QUIC stream ID, reliably and
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// in-order. To send/receive data out of order, use separate streams. To
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// send/receive unreliably, close a stream after reliability is no longer
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// needed.
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class QUIC_EXPORT_PRIVATE QuartcStream : public QuicStream {
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public:
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QuartcStream(QuicStreamId id, QuicSession* session);
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~QuartcStream() override;
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// QuicStream overrides.
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void OnDataAvailable() override;
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void OnClose() override;
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void OnStreamDataConsumed(size_t bytes_consumed) override;
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void OnDataBuffered(
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QuicStreamOffset offset,
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QuicByteCount data_length,
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const QuicReferenceCountedPointer<QuicAckListenerInterface>& ack_listener)
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override;
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void OnCanWrite() override;
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// QuartcStream interface methods.
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// Whether the stream should be cancelled instead of retransmitted on loss.
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// If set to true, the stream will reset itself instead of retransmitting lost
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// stream frames. Defaults to false.
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bool cancel_on_loss();
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void set_cancel_on_loss(bool cancel_on_loss);
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// Marks this stream as finished writing. Asynchronously sends a FIN and
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// closes the write-side. It is not necessary to call FinishWriting() if the
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// last call to Write() sends a FIN.
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void FinishWriting();
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// Implemented by the user of the QuartcStream to receive incoming
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// data and be notified of state changes.
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class Delegate {
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public:
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virtual ~Delegate() {}
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// Called when the stream receives data. Called with |size| == 0 after all
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// stream data has been delivered (once the stream receives a FIN bit).
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// Note that the same packet may include both data and a FIN bit, causing
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// this method to be called twice.
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virtual void OnReceived(QuartcStream* stream,
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const char* data,
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size_t size) = 0;
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// Called when the stream is closed, either locally or by the remote
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// endpoint. Streams close when (a) fin bits are both sent and received,
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// (b) Close() is called, or (c) the stream is reset.
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// TODO(zhihuang) Creates a map from the integer error_code to WebRTC native
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// error code.
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virtual void OnClose(QuartcStream* stream) = 0;
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// Called when the contents of the stream's buffer changes.
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virtual void OnBufferChanged(QuartcStream* stream) = 0;
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};
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// The |delegate| is not owned by QuartcStream.
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void SetDelegate(Delegate* delegate);
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private:
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Delegate* delegate_ = nullptr;
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// Whether the stream should cancel itself instead of retransmitting frames.
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bool cancel_on_loss_ = false;
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};
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} // namespace quic
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#endif // NET_THIRD_PARTY_QUIC_QUARTC_QUARTC_STREAM_H_
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