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67 lines
2.6 KiB
C++
67 lines
2.6 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_PACKET_WRITER_H_
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#define NET_THIRD_PARTY_QUIC_QUARTC_QUARTC_PACKET_WRITER_H_
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#include "net/third_party/quic/core/quic_packet_writer.h"
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#include "net/third_party/quic/platform/api/quic_export.h"
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#include "net/third_party/quic/quartc/quartc_session_interface.h"
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namespace net {
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// Implements a QuicPacketWriter using a QuartcPacketTransport, which allows a
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// QuicConnection to use (for example), a WebRTC IceTransport.
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class QUIC_EXPORT_PRIVATE QuartcPacketWriter : public QuicPacketWriter {
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public:
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QuartcPacketWriter(QuartcPacketTransport* packet_transport,
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QuicByteCount max_packet_size);
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~QuartcPacketWriter() override {}
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// The QuicConnection calls WritePacket and the QuicPacketWriter writes them
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// to the QuartcSessionInterface::PacketTransport.
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WriteResult WritePacket(const char* buffer,
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size_t buf_len,
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const QuicIpAddress& self_address,
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const QuicSocketAddress& peer_address,
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PerPacketOptions* options) override;
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// This is always set to false so that QuicConnection buffers unsent packets.
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bool IsWriteBlockedDataBuffered() const override;
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// Whether the underneath |transport_| is blocked. If this returns true,
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// outgoing QUIC packets are queued by QuicConnection until SetWritable() is
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// called.
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bool IsWriteBlocked() const override;
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// Maximum size of the QUIC packet which can be written. Users such as WebRTC
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// can set the value through the QuartcFactoryConfig without updating the QUIC
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// code.
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QuicByteCount GetMaxPacketSize(
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const QuicSocketAddress& peer_address) const override;
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// Sets the packet writer to a writable (non-blocked) state.
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void SetWritable() override;
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// Sets the connection which sends packets using this writer. Connection must
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// be set in order to attach packet info (eg. packet numbers) to writes.
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void set_connection(QuicConnection* connection) { connection_ = connection; }
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private:
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// QuartcPacketWriter will not own the transport.
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QuartcPacketTransport* packet_transport_;
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// The maximum size of the packet can be written by this writer.
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QuicByteCount max_packet_size_;
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// The current connection sending packets using this writer.
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QuicConnection* connection_;
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// Whether packets can be written.
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bool writable_ = false;
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};
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} // namespace net
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#endif // NET_THIRD_PARTY_QUIC_QUARTC_QUARTC_PACKET_WRITER_H_
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