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 3 // found in the LICENSE file. 4 5 #ifndef JINGLE_GLUE_CHANNEL_SOCKET_ADAPTER_H_ 6 #define JINGLE_GLUE_CHANNEL_SOCKET_ADAPTER_H_ 7 8 #include "base/callback_forward.h" 9 #include "base/compiler_specific.h" 10 #include "net/socket/socket.h" 11 #include "third_party/libjingle/source/talk/base/asyncpacketsocket.h" 12 #include "third_party/libjingle/source/talk/base/socketaddress.h" 13 #include "third_party/libjingle/source/talk/base/sigslot.h" 14 15 namespace base { 16 class MessageLoop; 17 } 18 19 namespace cricket { 20 class TransportChannel; 21 } // namespace cricket 22 23 namespace jingle_glue { 24 25 // TransportChannelSocketAdapter implements net::Socket interface on 26 // top of libjingle's TransportChannel. It is used by 27 // JingleChromotocolConnection to provide net::Socket interface for channels. 28 class TransportChannelSocketAdapter : public net::Socket, 29 public sigslot::has_slots<> { 30 public: 31 // TransportChannel object is always owned by the corresponding session. 32 explicit TransportChannelSocketAdapter(cricket::TransportChannel* channel); 33 virtual ~TransportChannelSocketAdapter(); 34 35 // Sets callback that should be called when the adapter is being 36 // destroyed. The callback is not allowed to touch the adapter, but 37 // can do anything else, e.g. destroy the TransportChannel. 38 void SetOnDestroyedCallback(const base::Closure& callback); 39 40 // Closes the stream. |error_code| specifies error code that will 41 // be returned by Read() and Write() after the stream is closed. 42 // Must be called before the session and the channel are destroyed. 43 void Close(int error_code); 44 45 // Socket implementation. 46 virtual int Read(net::IOBuffer* buf, int buf_len, 47 const net::CompletionCallback& callback) OVERRIDE; 48 virtual int Write(net::IOBuffer* buf, int buf_len, 49 const net::CompletionCallback& callback) OVERRIDE; 50 51 virtual bool SetReceiveBufferSize(int32 size) OVERRIDE; 52 virtual bool SetSendBufferSize(int32 size) OVERRIDE; 53 54 private: 55 void OnNewPacket(cricket::TransportChannel* channel, 56 const char* data, 57 size_t data_size, 58 const talk_base::PacketTime& packet_time, 59 int flags); 60 void OnWritableState(cricket::TransportChannel* channel); 61 void OnChannelDestroyed(cricket::TransportChannel* channel); 62 63 base::MessageLoop* message_loop_; 64 65 cricket::TransportChannel* channel_; 66 67 base::Closure destruction_callback_; 68 69 net::CompletionCallback read_callback_; 70 scoped_refptr<net::IOBuffer> read_buffer_; 71 int read_buffer_size_; 72 73 net::CompletionCallback write_callback_; 74 scoped_refptr<net::IOBuffer> write_buffer_; 75 int write_buffer_size_; 76 77 int closed_error_code_; 78 79 DISALLOW_COPY_AND_ASSIGN(TransportChannelSocketAdapter); 80 }; 81 82 } // namespace jingle_glue 83 84 #endif // JINGLE_GLUE_CHANNEL_SOCKET_ADAPTER_H_ 85