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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 // | 4 // |
| 5 // The entity that handles framing writes for a Quic client or server. | 5 // The entity that handles framing writes for a Quic client or server. |
| 6 // Each QuicSession will have a connection associated with it. | 6 // Each QuicSession will have a connection associated with it. |
| 7 // | 7 // |
| 8 // On the server side, the Dispatcher handles the raw reads, and hands off | 8 // On the server side, the Dispatcher handles the raw reads, and hands off |
| 9 // packets via ProcessUdpPacket for framing and processing. | 9 // packets via ProcessUdpPacket for framing and processing. |
| 10 // | 10 // |
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| 104 virtual bool HasPendingHandshake() const = 0; | 104 virtual bool HasPendingHandshake() const = 0; |
| 105 | 105 |
| 106 // Called to ask if any streams are open in this visitor, excluding the | 106 // Called to ask if any streams are open in this visitor, excluding the |
| 107 // reserved crypto and headers stream. | 107 // reserved crypto and headers stream. |
| 108 virtual bool HasOpenDataStreams() const = 0; | 108 virtual bool HasOpenDataStreams() const = 0; |
| 109 }; | 109 }; |
| 110 | 110 |
| 111 // Interface which gets callbacks from the QuicConnection at interesting | 111 // Interface which gets callbacks from the QuicConnection at interesting |
| 112 // points. Implementations must not mutate the state of the connection | 112 // points. Implementations must not mutate the state of the connection |
| 113 // as a result of these callbacks. | 113 // as a result of these callbacks. |
| 114 class NET_EXPORT_PRIVATE QuicConnectionDebugVisitorInterface | 114 class NET_EXPORT_PRIVATE QuicConnectionDebugVisitor |
| 115 : public QuicPacketGenerator::DebugDelegateInterface { | 115 : public QuicPacketGenerator::DebugDelegate { |
| 116 public: | 116 public: |
| 117 virtual ~QuicConnectionDebugVisitorInterface() {} | 117 virtual ~QuicConnectionDebugVisitor() {} |
| 118 | 118 |
| 119 // Called when a packet has been sent. | 119 // Called when a packet has been sent. |
| 120 virtual void OnPacketSent(QuicPacketSequenceNumber sequence_number, | 120 virtual void OnPacketSent(QuicPacketSequenceNumber sequence_number, |
| 121 EncryptionLevel level, | 121 EncryptionLevel level, |
| 122 TransmissionType transmission_type, | 122 TransmissionType transmission_type, |
| 123 const QuicEncryptedPacket& packet, | 123 const QuicEncryptedPacket& packet, |
| 124 WriteResult result) {} | 124 WriteResult result) {} |
| 125 | 125 |
| 126 // Called when the contents of a packet have been retransmitted as | 126 // Called when the contents of a packet have been retransmitted as |
| 127 // a new packet. | 127 // a new packet. |
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| 337 IsHandshake handshake) OVERRIDE; | 337 IsHandshake handshake) OVERRIDE; |
| 338 virtual QuicAckFrame* CreateAckFrame() OVERRIDE; | 338 virtual QuicAckFrame* CreateAckFrame() OVERRIDE; |
| 339 virtual QuicCongestionFeedbackFrame* CreateFeedbackFrame() OVERRIDE; | 339 virtual QuicCongestionFeedbackFrame* CreateFeedbackFrame() OVERRIDE; |
| 340 virtual QuicStopWaitingFrame* CreateStopWaitingFrame() OVERRIDE; | 340 virtual QuicStopWaitingFrame* CreateStopWaitingFrame() OVERRIDE; |
| 341 virtual bool OnSerializedPacket(const SerializedPacket& packet) OVERRIDE; | 341 virtual bool OnSerializedPacket(const SerializedPacket& packet) OVERRIDE; |
| 342 | 342 |
| 343 // Accessors | 343 // Accessors |
| 344 void set_visitor(QuicConnectionVisitorInterface* visitor) { | 344 void set_visitor(QuicConnectionVisitorInterface* visitor) { |
| 345 visitor_ = visitor; | 345 visitor_ = visitor; |
| 346 } | 346 } |
| 347 void set_debug_visitor(QuicConnectionDebugVisitorInterface* debug_visitor) { | 347 void set_debug_visitor(QuicConnectionDebugVisitor* debug_visitor) { |
| 348 debug_visitor_ = debug_visitor; | 348 debug_visitor_ = debug_visitor; |
| 349 packet_generator_.set_debug_delegate(debug_visitor); | 349 packet_generator_.set_debug_delegate(debug_visitor); |
| 350 } | 350 } |
| 351 const IPEndPoint& self_address() const { return self_address_; } | 351 const IPEndPoint& self_address() const { return self_address_; } |
| 352 const IPEndPoint& peer_address() const { return peer_address_; } | 352 const IPEndPoint& peer_address() const { return peer_address_; } |
| 353 QuicConnectionId connection_id() const { return connection_id_; } | 353 QuicConnectionId connection_id() const { return connection_id_; } |
| 354 const QuicClock* clock() const { return clock_; } | 354 const QuicClock* clock() const { return clock_; } |
| 355 QuicRandom* random_generator() const { return random_generator_; } | 355 QuicRandom* random_generator() const { return random_generator_; } |
| 356 size_t max_packet_length() const { | 356 size_t max_packet_length() const { |
| 357 return packet_creator_.max_packet_length(); | 357 return packet_creator_.max_packet_length(); |
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| 691 scoped_ptr<QuicAlarm> send_alarm_; | 691 scoped_ptr<QuicAlarm> send_alarm_; |
| 692 // An alarm that is scheduled when the connection can still write and there | 692 // An alarm that is scheduled when the connection can still write and there |
| 693 // may be more data to send. | 693 // may be more data to send. |
| 694 scoped_ptr<QuicAlarm> resume_writes_alarm_; | 694 scoped_ptr<QuicAlarm> resume_writes_alarm_; |
| 695 // An alarm that fires when the connection may have timed out. | 695 // An alarm that fires when the connection may have timed out. |
| 696 scoped_ptr<QuicAlarm> timeout_alarm_; | 696 scoped_ptr<QuicAlarm> timeout_alarm_; |
| 697 // An alarm that fires when a ping should be sent. | 697 // An alarm that fires when a ping should be sent. |
| 698 scoped_ptr<QuicAlarm> ping_alarm_; | 698 scoped_ptr<QuicAlarm> ping_alarm_; |
| 699 | 699 |
| 700 QuicConnectionVisitorInterface* visitor_; | 700 QuicConnectionVisitorInterface* visitor_; |
| 701 QuicConnectionDebugVisitorInterface* debug_visitor_; | 701 QuicConnectionDebugVisitor* debug_visitor_; |
| 702 QuicPacketCreator packet_creator_; | 702 QuicPacketCreator packet_creator_; |
| 703 QuicPacketGenerator packet_generator_; | 703 QuicPacketGenerator packet_generator_; |
| 704 | 704 |
| 705 // Network idle time before we kill of this connection. | 705 // Network idle time before we kill of this connection. |
| 706 QuicTime::Delta idle_network_timeout_; | 706 QuicTime::Delta idle_network_timeout_; |
| 707 // Overall connection timeout. | 707 // Overall connection timeout. |
| 708 QuicTime::Delta overall_connection_timeout_; | 708 QuicTime::Delta overall_connection_timeout_; |
| 709 | 709 |
| 710 // Statistics for this session. | 710 // Statistics for this session. |
| 711 QuicConnectionStats stats_; | 711 QuicConnectionStats stats_; |
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| 756 // If non-empty this contains the set of versions received in a | 756 // If non-empty this contains the set of versions received in a |
| 757 // version negotiation packet. | 757 // version negotiation packet. |
| 758 QuicVersionVector server_supported_versions_; | 758 QuicVersionVector server_supported_versions_; |
| 759 | 759 |
| 760 DISALLOW_COPY_AND_ASSIGN(QuicConnection); | 760 DISALLOW_COPY_AND_ASSIGN(QuicConnection); |
| 761 }; | 761 }; |
| 762 | 762 |
| 763 } // namespace net | 763 } // namespace net |
| 764 | 764 |
| 765 #endif // NET_QUIC_QUIC_CONNECTION_H_ | 765 #endif // NET_QUIC_QUIC_CONNECTION_H_ |
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