src/servers/launch/NetworkWatcher.h

   1 /*
   2  * Copyright 2015, Axel Dörfler, axeld@pinc-software.de.
   3  * Distributed under the terms of the MIT License.
   4  */
   5 #ifndef NETWORK_WATCHER_H
   6 #define NETWORK_WATCHER_H
   7
   8
   9 #include <Handler.h>
  10 #include <ObjectList.h>
  11
  12
  13 class NetworkListener {
  14 public:
  15         virtual                                         ~NetworkListener();
  16
  17         virtual void                            NetworkAvailabilityChanged(bool available) = 0;
  18 };
  19
  20
  21 class NetworkWatcher : public BHandler {
  22 public:
  23                                                                 NetworkWatcher();
  24         virtual                                         ~NetworkWatcher();
  25
  26                         void                            AddListener(NetworkListener* listener);
  27                         void                            RemoveListener(NetworkListener* listener);
  28                         int32                           CountListeners() const;
  29
  30         virtual void                            MessageReceived(BMessage* message);
  31
  32         static  void                            Register(NetworkListener* listener);
  33         static  void                            Unregister(NetworkListener* listener);
  34
  35         static  bool                            NetworkAvailable(bool immediate);
  36
  37 protected:
  38                         void                            UpdateAvailability();
  39
  40 protected:
  41                         BObjectList<NetworkListener>
  42                                                                 fListeners;
  43                         bool                            fAvailable;
  44 };
  45
  46
  47 #endif // NETWORK_WATCHER_H