net/base/network_change_notifier_linux.h

   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 NET_BASE_NETWORK_CHANGE_NOTIFIER_LINUX_H_
   6 #define NET_BASE_NETWORK_CHANGE_NOTIFIER_LINUX_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/compiler_specific.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "net/base/net_export.h"
  12 #include "net/base/network_change_notifier.h"
  13
  14 namespace net {
  15
  16 class NET_EXPORT_PRIVATE NetworkChangeNotifierLinux
  17     : public NetworkChangeNotifier {
  18  public:
  19   // Creates NetworkChangeNotifierLinux with a list of ignored interfaces.
  20   // |ignored_interfaces| is the list of interfaces to ignore. An ignored
  21   // interface will not trigger IP address or connection type notifications.
  22   // NOTE: Only ignore interfaces not used to connect to the internet. Adding
  23   // interfaces used to connect to the internet can cause critical network
  24   // changed signals to be lost allowing incorrect stale state to persist.
  25   explicit NetworkChangeNotifierLinux(
  26       const base::hash_set<std::string>& ignored_interfaces);
  27
  28  private:
  29   class Thread;
  30
  31   ~NetworkChangeNotifierLinux() override;
  32   static NetworkChangeCalculatorParams NetworkChangeCalculatorParamsLinux();
  33
  34   // NetworkChangeNotifier:
  35   ConnectionType GetCurrentConnectionType() const override;
  36
  37   const internal::AddressTrackerLinux* GetAddressTrackerInternal()
  38       const override;
  39
  40   // The thread used to listen for notifications.  This relays the notification
  41   // to the registered observers without posting back to the thread the object
  42   // was created on.
  43   // Also used for DnsConfigService which requires TYPE_IO message loop.
  44   scoped_ptr<Thread> notifier_thread_;
  45
  46   DISALLOW_COPY_AND_ASSIGN(NetworkChangeNotifierLinux);
  47 };
  48
  49 }  // namespace net
  50
  51 #endif  // NET_BASE_NETWORK_CHANGE_NOTIFIER_LINUX_H_