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