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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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36 // with the guid in time wait state. After the guid expires its time wait | 36 // with the guid in time wait state. After the guid expires its time wait |
37 // period, a new connection/session will be created if a packet is received | 37 // period, a new connection/session will be created if a packet is received |
38 // for this guid. | 38 // for this guid. |
39 class QuicTimeWaitListManager : public QuicBlockedWriterInterface { | 39 class QuicTimeWaitListManager : public QuicBlockedWriterInterface { |
40 public: | 40 public: |
41 // writer - the entity that writes to the socket. (Owned by the dispatcher) | 41 // writer - the entity that writes to the socket. (Owned by the dispatcher) |
42 // epoll_server - used to run clean up alarms. (Owned by the dispatcher) | 42 // epoll_server - used to run clean up alarms. (Owned by the dispatcher) |
43 QuicTimeWaitListManager(QuicPacketWriter* writer, | 43 QuicTimeWaitListManager(QuicPacketWriter* writer, |
44 EpollServer* epoll_server, | 44 EpollServer* epoll_server, |
45 const QuicVersionVector& supported_versions); | 45 const QuicVersionVector& supported_versions); |
46 virtual ~QuicTimeWaitListManager(); | 46 virtual ~QuicTimeWaitListManager() OVERRIDE; |
47 | 47 |
48 // Adds the given guid to time wait state for kTimeWaitPeriod. Henceforth, | 48 // Adds the given guid to time wait state for kTimeWaitPeriod. Henceforth, |
49 // any packet bearing this guid should not be processed while the guid remains | 49 // any packet bearing this guid should not be processed while the guid remains |
50 // in this list. If a non-NULL |close_packet| is provided, it is sent again | 50 // in this list. If a non-NULL |close_packet| is provided, it is sent again |
51 // when packets are received for added guids. If NULL, a public reset packet | 51 // when packets are received for added guids. If NULL, a public reset packet |
52 // is sent with the specified |version|. DCHECKs that guid is not already on | 52 // is sent with the specified |version|. DCHECKs that guid is not already on |
53 // the list. | 53 // the list. |
54 void AddGuidToTimeWait(QuicGuid guid, | 54 void AddGuidToTimeWait(QuicGuid guid, |
55 QuicVersion version, | 55 QuicVersion version, |
56 QuicEncryptedPacket* close_packet); // Owned. | 56 QuicEncryptedPacket* close_packet); // Owned. |
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157 // on sendmsg. | 157 // on sendmsg. |
158 bool is_write_blocked_; | 158 bool is_write_blocked_; |
159 | 159 |
160 DISALLOW_COPY_AND_ASSIGN(QuicTimeWaitListManager); | 160 DISALLOW_COPY_AND_ASSIGN(QuicTimeWaitListManager); |
161 }; | 161 }; |
162 | 162 |
163 } // namespace tools | 163 } // namespace tools |
164 } // namespace net | 164 } // namespace net |
165 | 165 |
166 #endif // NET_TOOLS_QUIC_QUIC_TIME_WAIT_LIST_MANAGER_H_ | 166 #endif // NET_TOOLS_QUIC_QUIC_TIME_WAIT_LIST_MANAGER_H_ |
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