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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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432 | 432 |
433 // Sets (or resets) the idle state connection timeout. Also, checks and times | 433 // Sets (or resets) the idle state connection timeout. Also, checks and times |
434 // out the connection if network timer has expired for |timeout|. | 434 // out the connection if network timer has expired for |timeout|. |
435 void SetIdleNetworkTimeout(QuicTime::Delta timeout); | 435 void SetIdleNetworkTimeout(QuicTime::Delta timeout); |
436 // Sets (or resets) the total time delta the connection can be alive for. | 436 // Sets (or resets) the total time delta the connection can be alive for. |
437 // Also, checks and times out the connection if timer has expired for | 437 // Also, checks and times out the connection if timer has expired for |
438 // |timeout|. Used to limit the time a connection can be alive before crypto | 438 // |timeout|. Used to limit the time a connection can be alive before crypto |
439 // handshake finishes. | 439 // handshake finishes. |
440 void SetOverallConnectionTimeout(QuicTime::Delta timeout); | 440 void SetOverallConnectionTimeout(QuicTime::Delta timeout); |
441 | 441 |
442 // If the connection has timed out, this will close the connection and return | 442 // If the connection has timed out, this will close the connection. |
443 // true. Otherwise, it will return false and will reset the timeout alarm. | 443 // Otherwise, it will reschedule the timeout alarm. |
444 bool CheckForTimeout(); | 444 void CheckForTimeout(); |
445 | 445 |
446 // Sends a ping, and resets the ping alarm. | 446 // Sends a ping, and resets the ping alarm. |
447 void SendPing(); | 447 void SendPing(); |
448 | 448 |
449 // Sets up a packet with an QuicAckFrame and sends it out. | 449 // Sets up a packet with an QuicAckFrame and sends it out. |
450 void SendAck(); | 450 void SendAck(); |
451 | 451 |
452 // Called when an RTO fires. Resets the retransmission alarm if there are | 452 // Called when an RTO fires. Resets the retransmission alarm if there are |
453 // remaining unacked packets. | 453 // remaining unacked packets. |
454 void OnRetransmissionTimeout(); | 454 void OnRetransmissionTimeout(); |
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644 // to be sent if there are no outstanding packets. | 644 // to be sent if there are no outstanding packets. |
645 QuicPacketSequenceNumber GetLeastUnacked() const; | 645 QuicPacketSequenceNumber GetLeastUnacked() const; |
646 | 646 |
647 // Get the FEC group associate with the last processed packet or NULL, if the | 647 // Get the FEC group associate with the last processed packet or NULL, if the |
648 // group has already been deleted. | 648 // group has already been deleted. |
649 QuicFecGroup* GetFecGroup(); | 649 QuicFecGroup* GetFecGroup(); |
650 | 650 |
651 // Closes any FEC groups protecting packets before |sequence_number|. | 651 // Closes any FEC groups protecting packets before |sequence_number|. |
652 void CloseFecGroupsBefore(QuicPacketSequenceNumber sequence_number); | 652 void CloseFecGroupsBefore(QuicPacketSequenceNumber sequence_number); |
653 | 653 |
| 654 // Sets the timeout alarm to the appropriate value, if any. |
| 655 void SetTimeoutAlarm(); |
| 656 |
654 // Sets the ping alarm to the appropriate value, if any. | 657 // Sets the ping alarm to the appropriate value, if any. |
655 void SetPingAlarm(); | 658 void SetPingAlarm(); |
656 | 659 |
657 // On arrival of a new packet, checks to see if the socket addresses have | 660 // On arrival of a new packet, checks to see if the socket addresses have |
658 // changed since the last packet we saw on this connection. | 661 // changed since the last packet we saw on this connection. |
659 void CheckForAddressMigration(const IPEndPoint& self_address, | 662 void CheckForAddressMigration(const IPEndPoint& self_address, |
660 const IPEndPoint& peer_address); | 663 const IPEndPoint& peer_address); |
661 | 664 |
662 HasRetransmittableData IsRetransmittable(const QueuedPacket& packet); | 665 HasRetransmittableData IsRetransmittable(const QueuedPacket& packet); |
663 bool IsConnectionClose(QueuedPacket packet); | 666 bool IsConnectionClose(QueuedPacket packet); |
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806 // If non-empty this contains the set of versions received in a | 809 // If non-empty this contains the set of versions received in a |
807 // version negotiation packet. | 810 // version negotiation packet. |
808 QuicVersionVector server_supported_versions_; | 811 QuicVersionVector server_supported_versions_; |
809 | 812 |
810 DISALLOW_COPY_AND_ASSIGN(QuicConnection); | 813 DISALLOW_COPY_AND_ASSIGN(QuicConnection); |
811 }; | 814 }; |
812 | 815 |
813 } // namespace net | 816 } // namespace net |
814 | 817 |
815 #endif // NET_QUIC_QUIC_CONNECTION_H_ | 818 #endif // NET_QUIC_QUIC_CONNECTION_H_ |
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