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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef NET_QUIC_QUIC_SERVER_PACKET_WRITER_H_ | |
| 6 #define NET_QUIC_QUIC_SERVER_PACKET_WRITER_H_ | |
| 7 | |
| 8 #include "base/basictypes.h" | |
| 9 #include "base/memory/weak_ptr.h" | |
| 10 #include "net/base/ip_endpoint.h" | |
| 11 #include "net/quic/quic_connection.h" | |
| 12 #include "net/quic/quic_packet_writer.h" | |
| 13 #include "net/quic/quic_protocol.h" | |
| 14 | |
| 15 namespace net { | |
| 16 | |
| 17 class QuicBlockedWriterInterface; | |
| 18 class UDPServerSocket; | |
| 19 struct WriteResult; | |
| 20 | |
| 21 // Chrome specific packet writer which uses a UDPServerSocket for writing | |
| 22 // data. | |
| 23 class QuicServerPacketWriter : public QuicPacketWriter { | |
| 24 public: | |
| 25 typedef base::Callback<void(WriteResult)> WriteCallback; | |
| 26 | |
| 27 QuicServerPacketWriter(UDPServerSocket* socket, | |
| 28 QuicBlockedWriterInterface* blocked_writer); | |
| 29 ~QuicServerPacketWriter() override; | |
| 30 | |
| 31 // Use this method to write packets rather than WritePacket: | |
| 32 // QuicServerPacketWriter requires a callback to exist for every write, which | |
| 33 // will be called once the write completes. | |
| 34 virtual WriteResult WritePacketWithCallback( | |
| 35 const char* buffer, | |
| 36 size_t buf_len, | |
| 37 const IPAddressNumber& self_address, | |
| 38 const IPEndPoint& peer_address, | |
| 39 WriteCallback callback); | |
| 40 | |
| 41 void OnWriteComplete(int rv); | |
| 42 | |
| 43 // QuicPacketWriter implementation: | |
| 44 bool IsWriteBlockedDataBuffered() const override; | |
| 45 bool IsWriteBlocked() const override; | |
| 46 void SetWritable() override; | |
| 47 | |
| 48 protected: | |
| 49 // Do not call WritePacket on its own -- use WritePacketWithCallback | |
| 50 WriteResult WritePacket(const char* buffer, | |
| 51 size_t buf_len, | |
| 52 const IPAddressNumber& self_address, | |
| 53 const IPEndPoint& peer_address) override; | |
| 54 | |
| 55 private: | |
| 56 UDPServerSocket* socket_; | |
| 57 | |
| 58 // To be notified after every successful asynchronous write. | |
| 59 QuicBlockedWriterInterface* blocked_writer_; | |
| 60 | |
| 61 // To call once the write completes. | |
| 62 WriteCallback callback_; | |
| 63 | |
| 64 // Whether a write is currently in flight. | |
| 65 bool write_blocked_; | |
| 66 | |
| 67 base::WeakPtrFactory<QuicServerPacketWriter> weak_factory_; | |
| 68 | |
| 69 DISALLOW_COPY_AND_ASSIGN(QuicServerPacketWriter); | |
| 70 }; | |
| 71 | |
| 72 } // namespace net | |
| 73 | |
| 74 #endif // NET_QUIC_QUIC_SERVER_PACKET_WRITER_H_ | |
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