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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 // Handles packets for guids in time wait state by discarding the packet and | 5 // Handles packets for guids in time wait state by discarding the packet and |
| 6 // sending the clients a public reset packet with exponential backoff. | 6 // sending the clients a public reset packet with exponential backoff. |
| 7 | 7 |
| 8 #ifndef NET_TOOLS_QUIC_QUIC_TIME_WAIT_LIST_MANAGER_H_ | 8 #ifndef NET_TOOLS_QUIC_QUIC_TIME_WAIT_LIST_MANAGER_H_ |
| 9 #define NET_TOOLS_QUIC_QUIC_TIME_WAIT_LIST_MANAGER_H_ | 9 #define NET_TOOLS_QUIC_QUIC_TIME_WAIT_LIST_MANAGER_H_ |
| 10 | 10 |
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| 30 // decides whether we should send a public reset packet to the client which sent | 30 // decides whether we should send a public reset packet to the client which sent |
| 31 // a packet with the guid in time wait state and sends it when appropriate. | 31 // a packet with the guid in time wait state and sends it when appropriate. |
| 32 // After the guid expires its time wait period, a new connection/session will be | 32 // After the guid expires its time wait period, a new connection/session will be |
| 33 // created if a packet is received for this guid. | 33 // created if a packet is received for this guid. |
| 34 class QuicTimeWaitListManager : public QuicBlockedWriterInterface, | 34 class QuicTimeWaitListManager : public QuicBlockedWriterInterface, |
| 35 public QuicFramerVisitorInterface { | 35 public QuicFramerVisitorInterface { |
| 36 public: | 36 public: |
| 37 // writer - the entity that writes to the socket. (Owned by the dispatcher) | 37 // writer - the entity that writes to the socket. (Owned by the dispatcher) |
| 38 // epoll_server - used to run clean up alarms. (Owned by the dispatcher) | 38 // epoll_server - used to run clean up alarms. (Owned by the dispatcher) |
| 39 QuicTimeWaitListManager(QuicPacketWriter* writer, | 39 QuicTimeWaitListManager(QuicPacketWriter* writer, |
| 40 EpollServer* epoll_server); | 40 EpollServer* epoll_server, |
| 41 const QuicVersionVector& supported_versions); |
| 41 virtual ~QuicTimeWaitListManager(); | 42 virtual ~QuicTimeWaitListManager(); |
| 42 | 43 |
| 43 // Adds the given guid to time wait state for kTimeWaitPeriod. Henceforth, | 44 // Adds the given guid to time wait state for kTimeWaitPeriod. Henceforth, |
| 44 // any packet bearing this guid should not be processed while the guid remains | 45 // any packet bearing this guid should not be processed while the guid remains |
| 45 // in this list. Public reset packets are sent to the clients by the time wait | 46 // in this list. Public reset packets are sent to the clients by the time wait |
| 46 // list manager that send packets to guids in this state. DCHECKs that guid is | 47 // list manager that send packets to guids in this state. DCHECKs that guid is |
| 47 // not already on the list. Pass in the version as well so that if a public | 48 // not already on the list. Pass in the version as well so that if a public |
| 48 // reset packet needs to be sent the framer version can be set first. | 49 // reset packet needs to be sent the framer version can be set first. |
| 49 void AddGuidToTimeWait(QuicGuid guid, QuicVersion version); | 50 void AddGuidToTimeWait(QuicGuid guid, QuicVersion version); |
| 50 | 51 |
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| 185 // on sendmsg. | 186 // on sendmsg. |
| 186 bool is_write_blocked_; | 187 bool is_write_blocked_; |
| 187 | 188 |
| 188 DISALLOW_COPY_AND_ASSIGN(QuicTimeWaitListManager); | 189 DISALLOW_COPY_AND_ASSIGN(QuicTimeWaitListManager); |
| 189 }; | 190 }; |
| 190 | 191 |
| 191 } // namespace tools | 192 } // namespace tools |
| 192 } // namespace net | 193 } // namespace net |
| 193 | 194 |
| 194 #endif // NET_TOOLS_QUIC_QUIC_TIME_WAIT_LIST_MANAGER_H_ | 195 #endif // NET_TOOLS_QUIC_QUIC_TIME_WAIT_LIST_MANAGER_H_ |
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