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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_PER_CONNECTION_PACKET_WRITER_H_ | |
| 6 #define NET_QUIC_QUIC_PER_CONNECTION_PACKET_WRITER_H_ | |
| 7 | |
| 8 #include "base/memory/weak_ptr.h" | |
| 9 #include "net/quic/quic_connection.h" | |
| 10 #include "net/quic/quic_packet_writer.h" | |
| 11 | |
| 12 namespace net { | |
| 13 | |
| 14 class QuicServerPacketWriter; | |
| 15 | |
| 16 // A connection-specific packet writer that notifies its connection when its | |
| 17 // writes to the shared QuicServerPacketWriter complete. | |
| 18 // This class is necessary because multiple connections can share the same | |
| 19 // QuicServerPacketWriter, so it has no way to know which connection to notify. | |
| 20 class QuicPerConnectionPacketWriter : public QuicPacketWriter { | |
| 21 public: | |
| 22 // Does not take ownership of |shared_writer| or |connection|. | |
| 23 QuicPerConnectionPacketWriter(QuicServerPacketWriter* shared_writer, | |
| 24 QuicConnection* connection); | |
| 25 ~QuicPerConnectionPacketWriter() override; | |
| 26 | |
| 27 QuicPacketWriter* shared_writer() const; | |
| 28 QuicConnection* connection() const { return connection_; } | |
| 29 | |
| 30 // Default implementation of the QuicPacketWriter interface: Passes everything | |
| 31 // to |shared_writer_|. | |
| 32 WriteResult WritePacket(const char* buffer, | |
| 33 size_t buf_len, | |
| 34 const IPAddressNumber& self_address, | |
| 35 const IPEndPoint& peer_address) override; | |
| 36 bool IsWriteBlockedDataBuffered() const override; | |
| 37 bool IsWriteBlocked() const override; | |
| 38 void SetWritable() override; | |
| 39 | |
| 40 private: | |
| 41 void OnWriteComplete(WriteResult result); | |
| 42 | |
| 43 QuicServerPacketWriter* shared_writer_; // Not owned. | |
| 44 QuicConnection* connection_; // Not owned. | |
| 45 | |
| 46 base::WeakPtrFactory<QuicPerConnectionPacketWriter> weak_factory_; | |
| 47 | |
| 48 DISALLOW_COPY_AND_ASSIGN(QuicPerConnectionPacketWriter); | |
| 49 }; | |
| 50 | |
| 51 } // namespace net | |
| 52 | |
| 53 #endif // NET_QUIC_QUIC_PER_CONNECTION_PACKET_WRITER_H_ | |
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