mirror of
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78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsWifiMonitor.h"
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// moz headers (alphabetical)
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#include "nsAutoPtr.h"
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#include "nsCOMArray.h"
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#include "nsComponentManagerUtils.h"
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#include "nsIMutableArray.h"
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#include "nsServiceManagerUtils.h"
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#include "nsWifiAccessPoint.h"
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#include "win_wifiScanner.h"
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#include "win_xp_wifiScanner.h"
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#include "mozilla/WindowsVersion.h"
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using namespace mozilla;
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/**
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* `nsWifiMonitor` is declared in the cross-platform nsWifiMonitor.h and
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* is mostly defined in the cross-platform nsWifiMonitor.cpp. This function
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* is implemented in various platform-specific files but the implementation
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* is almost identical in each file. We relegate the Windows-specific
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* work to the `WinWifiScanner` class and deal with non-Windows-specific
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* issues like calling listeners here. Hopefully this file can be merged
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* with the other implementations of `nsWifiMonitor::DoScan` since a lot
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* of the code is identical
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*/
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nsresult
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nsWifiMonitor::DoScan()
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{
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if (!mWinWifiScanner) {
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if (IsWin2003OrLater()) {
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mWinWifiScanner = new WinWifiScanner();
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LOG(("Using Windows 2003+ wifi scanner."));
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} else {
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mWinWifiScanner = new WinXPWifiScanner();
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LOG(("Using Windows XP wifi scanner."));
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}
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if (!mWinWifiScanner) {
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// TODO: Probably return OOM error
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return NS_ERROR_FAILURE;
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}
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}
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// Regularly get the access point data.
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nsCOMArray<nsWifiAccessPoint> lastAccessPoints;
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nsCOMArray<nsWifiAccessPoint> accessPoints;
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do {
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accessPoints.Clear();
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nsresult rv = mWinWifiScanner->GetAccessPointsFromWLAN(accessPoints);
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if (NS_FAILED(rv)) {
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return rv;
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}
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bool accessPointsChanged = !AccessPointsEqual(accessPoints, lastAccessPoints);
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ReplaceArray(lastAccessPoints, accessPoints);
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rv = CallWifiListeners(lastAccessPoints, accessPointsChanged);
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NS_ENSURE_SUCCESS(rv, rv);
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// wait for some reasonable amount of time. pref?
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LOG(("waiting on monitor\n"));
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ReentrantMonitorAutoEnter mon(mReentrantMonitor);
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if (mKeepGoing) {
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mon.Wait(PR_SecondsToInterval(kDefaultWifiScanInterval));
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}
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}
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while (mKeepGoing);
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return NS_OK;
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}
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