ipc/unixfd/UnixSocketWatcher.h

   1 /* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
   2 /* vim: set ts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_ipc_UnixSocketWatcher_h
   8 #define mozilla_ipc_UnixSocketWatcher_h
   9
  10 #include <sys/socket.h>
  11 #include <sys/types.h>
  12 #include <sys/un.h>
  13 #include <netinet/in.h>
  14 #ifdef MOZ_B2G_BT_BLUEZ
  15 #include <bluetooth/bluetooth.h>
  16 #include <bluetooth/sco.h>
  17 #include <bluetooth/l2cap.h>
  18 #include <bluetooth/rfcomm.h>
  19 #endif
  20 #include "UnixFdWatcher.h"
  21
  22 namespace mozilla {
  23 namespace ipc {
  24
  25 union sockaddr_any {
  26   sockaddr_storage storage; // address-family only
  27   sockaddr_un un;
  28   sockaddr_in in;
  29   sockaddr_in6 in6;
  30 #ifdef MOZ_B2G_BT_BLUEZ
  31   sockaddr_sco sco;
  32   sockaddr_rc rc;
  33   sockaddr_l2 l2;
  34 #endif
  35   // ... others
  36 };
  37
  38 class UnixSocketWatcher : public UnixFdWatcher
  39 {
  40 public:
  41   enum ConnectionStatus {
  42     SOCKET_IS_DISCONNECTED = 0,
  43     SOCKET_IS_LISTENING,
  44     SOCKET_IS_CONNECTING,
  45     SOCKET_IS_CONNECTED
  46   };
  47
  48   virtual ~UnixSocketWatcher();
  49
  50   virtual void Close() MOZ_OVERRIDE;
  51
  52   ConnectionStatus GetConnectionStatus() const
  53   {
  54     return mConnectionStatus;
  55   }
  56
  57   // Connect to a peer
  58   nsresult Connect(const struct sockaddr* aAddr, socklen_t aAddrLen);
  59
  60   // Listen on socket for incoming connection requests
  61   nsresult Listen(const struct sockaddr* aAddr, socklen_t aAddrLen);
  62
  63   // Callback method for accepted connections
  64   virtual void OnAccepted(int aFd, const sockaddr_any* aAddr,
  65                           socklen_t aAddrLen) {};
  66
  67   // Callback method for successful connection requests
  68   virtual void OnConnected() {};
  69
  70   // Callback method for successful listen requests
  71   virtual void OnListening() {};
  72
  73   // Callback method for receiving from socket
  74   virtual void OnSocketCanReceiveWithoutBlocking() {};
  75
  76   // Callback method for sending on socket
  77   virtual void OnSocketCanSendWithoutBlocking() {};
  78
  79 protected:
  80   UnixSocketWatcher(MessageLoop* aIOLoop);
  81   UnixSocketWatcher(MessageLoop* aIOLoop, int aFd,
  82                     ConnectionStatus aConnectionStatus);
  83   void SetSocket(int aFd, ConnectionStatus aConnectionStatus);
  84
  85 private:
  86   void OnFileCanReadWithoutBlocking(int aFd) MOZ_OVERRIDE;
  87   void OnFileCanWriteWithoutBlocking(int aFd) MOZ_OVERRIDE;
  88
  89   ConnectionStatus mConnectionStatus;
  90 };
  91
  92 }
  93 }
  94
  95 #endif