net/quic/quic_default_packet_writer.h

   1 // Copyright 2013 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_DEFAULT_PACKET_WRITER_H_
   6 #define NET_QUIC_QUIC_DEFAULT_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 #include "net/udp/datagram_client_socket.h"
  15
  16 namespace net {
  17
  18 struct WriteResult;
  19
  20 // Chrome specific packet writer which uses a datagram Socket for writing data.
  21 class NET_EXPORT_PRIVATE QuicDefaultPacketWriter : public QuicPacketWriter {
  22  public:
  23   QuicDefaultPacketWriter();
  24   explicit QuicDefaultPacketWriter(Socket* socket);
  25   ~QuicDefaultPacketWriter() override;
  26
  27   // QuicPacketWriter
  28   WriteResult WritePacket(const char* buffer,
  29                           size_t buf_len,
  30                           const IPAddressNumber& self_address,
  31                           const IPEndPoint& peer_address) override;
  32   bool IsWriteBlockedDataBuffered() const override;
  33   bool IsWriteBlocked() const override;
  34   void SetWritable() override;
  35
  36   void OnWriteComplete(int rv);
  37   void SetConnection(QuicConnection* connection) {
  38     connection_ = connection;
  39   }
  40
  41  protected:
  42   void set_write_blocked(bool is_blocked) {
  43     write_blocked_ = is_blocked;
  44   }
  45
  46  private:
  47   Socket* socket_;
  48   QuicConnection* connection_;
  49
  50   // Whether a write is currently in flight.
  51   bool write_blocked_;
  52
  53   base::WeakPtrFactory<QuicDefaultPacketWriter> weak_factory_;
  54
  55   DISALLOW_COPY_AND_ASSIGN(QuicDefaultPacketWriter);
  56 };
  57
  58 }  // namespace net
  59
  60 #endif  // NET_QUIC_QUIC_DEFAULT_PACKET_WRITER_H_