netwerk/wifi/nsWifiScannerMac.cpp

   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 #include <mach-o/dyld.h>
   6 #include <dlfcn.h>
   7 #include <unistd.h>
   8
   9 #include "osx_wifi.h"
  10
  11 #include "nsAutoPtr.h"
  12 #include "nsCOMArray.h"
  13 #include "nsWifiMonitor.h"
  14 #include "nsWifiAccessPoint.h"
  15
  16 #include "nsServiceManagerUtils.h"
  17 #include "nsComponentManagerUtils.h"
  18 #include "nsIMutableArray.h"
  19
  20 using namespace mozilla;
  21
  22 // defined in osx_corewlan.mm
  23 // basically replaces accesspoints in the passed reference
  24 // it lives in a separate file so that we can use objective c.
  25 extern nsresult GetAccessPointsFromWLAN(nsCOMArray<nsWifiAccessPoint> &accessPoints);
  26
  27 nsresult
  28 nsWifiMonitor::DoScan()
  29 {
  30   // Regularly get the access point data.
  31
  32   nsCOMArray<nsWifiAccessPoint> lastAccessPoints;
  33   nsCOMArray<nsWifiAccessPoint> accessPoints;
  34
  35   do {
  36     nsresult rv = GetAccessPointsFromWLAN(accessPoints);
  37     if (NS_FAILED(rv))
  38       return rv;
  39
  40     bool accessPointsChanged = !AccessPointsEqual(accessPoints, lastAccessPoints);
  41     ReplaceArray(lastAccessPoints, accessPoints);
  42
  43     rv = CallWifiListeners(lastAccessPoints, accessPointsChanged);
  44     NS_ENSURE_SUCCESS(rv, rv);
  45
  46     // wait for some reasonable amount of time.  pref?
  47     LOG(("waiting on monitor\n"));
  48
  49     ReentrantMonitorAutoEnter mon(mReentrantMonitor);
  50     mon.Wait(PR_SecondsToInterval(kDefaultWifiScanInterval));
  51   }
  52   while (mKeepGoing);
  53
  54   return NS_OK;
  55 }