netwerk/wifi/nsWifiMonitor.h

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #ifndef __nsWifiMonitor__
   6 #define __nsWifiMonitor__
   7
   8 #include "nsIWifiMonitor.h"
   9 #include "nsCOMPtr.h"
  10 #include "nsProxyRelease.h"
  11 #include "nsIThread.h"
  12 #include "nsIRunnable.h"
  13 #include "nsCOMArray.h"
  14 #include "nsIWifiListener.h"
  15 #include "mozilla/Atomics.h"
  16 #include "mozilla/ReentrantMonitor.h"
  17 #include "mozilla/Logging.h"
  18 #include "nsIObserver.h"
  19 #include "nsTArray.h"
  20 #include "mozilla/Attributes.h"
  21
  22 #ifdef XP_WIN
  23 #  include "win_wifiScanner.h"
  24 #endif
  25
  26 extern mozilla::LazyLogModule gWifiMonitorLog;
  27 #define LOG(args) MOZ_LOG(gWifiMonitorLog, mozilla::LogLevel::Debug, args)
  28
  29 class nsWifiAccessPoint;
  30
  31 #define kDefaultWifiScanInterval 5 /* seconds */
  32
  33 class nsWifiListener {
  34  public:
  35   explicit nsWifiListener(nsMainThreadPtrHolder<nsIWifiListener>* aListener) {
  36     mListener = aListener;
  37     mHasSentData = false;
  38   }
  39   ~nsWifiListener() = default;
  40
  41   nsMainThreadPtrHandle<nsIWifiListener> mListener;
  42   bool mHasSentData;
  43 };
  44
  45 class nsWifiMonitor final : nsIRunnable, nsIWifiMonitor, nsIObserver {
  46  public:
  47   NS_DECL_THREADSAFE_ISUPPORTS
  48   NS_DECL_NSIWIFIMONITOR
  49   NS_DECL_NSIRUNNABLE
  50   NS_DECL_NSIOBSERVER
  51
  52   nsWifiMonitor();
  53
  54  private:
  55   ~nsWifiMonitor() = default;
  56
  57   nsresult DoScan();
  58
  59   nsresult CallWifiListeners(const nsCOMArray<nsWifiAccessPoint>& aAccessPoints,
  60                              bool aAccessPointsChanged);
  61
  62   mozilla::Atomic<bool> mKeepGoing;
  63   mozilla::Atomic<bool> mThreadComplete;
  64   nsCOMPtr<nsIThread> mThread;  // only accessed on MainThread
  65
  66   nsTArray<nsWifiListener> mListeners GUARDED_BY(mReentrantMonitor);
  67
  68   mozilla::ReentrantMonitor mReentrantMonitor;
  69
  70 #ifdef XP_WIN
  71   mozilla::UniquePtr<WinWifiScanner> mWinWifiScanner;
  72 #endif
  73 };
  74
  75 #endif