| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.wifi; |
| |
| import android.annotation.NonNull; |
| import android.net.wifi.WifiConfiguration; |
| import android.net.wifi.WifiManager; |
| import android.os.Binder; |
| import android.os.IBinder; |
| import android.os.Message; |
| import android.os.Messenger; |
| import android.os.RemoteException; |
| |
| import com.android.internal.util.Preconditions; |
| |
| /** |
| * Tracks information about applications requesting use of the LocalOnlyHotspot. |
| * |
| * @hide |
| */ |
| public class LocalOnlyHotspotRequestInfo implements IBinder.DeathRecipient { |
| static final int HOTSPOT_NO_ERROR = -1; |
| |
| private final int mPid; |
| private final IBinder mBinder; |
| private final RequestingApplicationDeathCallback mCallback; |
| private final Messenger mMessenger; |
| |
| /** |
| * Callback for use with LocalOnlyHotspot to unregister requesting applications upon death. |
| */ |
| public interface RequestingApplicationDeathCallback { |
| /** |
| * Called when requesting app has died. |
| */ |
| void onLocalOnlyHotspotRequestorDeath(LocalOnlyHotspotRequestInfo requestor); |
| } |
| |
| LocalOnlyHotspotRequestInfo(@NonNull IBinder binder, @NonNull Messenger messenger, |
| @NonNull RequestingApplicationDeathCallback callback) { |
| mPid = Binder.getCallingPid(); |
| mBinder = Preconditions.checkNotNull(binder); |
| mMessenger = Preconditions.checkNotNull(messenger); |
| mCallback = Preconditions.checkNotNull(callback); |
| |
| try { |
| mBinder.linkToDeath(this, 0); |
| } catch (RemoteException e) { |
| binderDied(); |
| } |
| } |
| |
| /** |
| * Allow caller to unlink this object from binder death. |
| */ |
| public void unlinkDeathRecipient() { |
| mBinder.unlinkToDeath(this, 0); |
| } |
| |
| /** |
| * Application requesting LocalOnlyHotspot died |
| */ |
| @Override |
| public void binderDied() { |
| mCallback.onLocalOnlyHotspotRequestorDeath(this); |
| } |
| |
| /** |
| * Send a HOTSPOT_FAILED message to WifiManager for the calling application with the error code. |
| * |
| * @param reasonCode error code for the message |
| * |
| * @throws RemoteException |
| */ |
| public void sendHotspotFailedMessage(int reasonCode) throws RemoteException { |
| Message message = Message.obtain(); |
| message.what = WifiManager.HOTSPOT_FAILED; |
| message.arg1 = reasonCode; |
| mMessenger.send(message); |
| } |
| |
| /** |
| * Send a HOTSPOT_STARTED message to WifiManager for the calling application with the config. |
| * |
| * @param config WifiConfiguration for the callback |
| * |
| * @throws RemoteException |
| */ |
| public void sendHotspotStartedMessage(WifiConfiguration config) throws RemoteException { |
| Message message = Message.obtain(); |
| message.what = WifiManager.HOTSPOT_STARTED; |
| message.obj = config; |
| mMessenger.send(message); |
| } |
| |
| /** |
| * Send a HOTSPOT_STOPPED message to WifiManager for the calling application. |
| * |
| * @throws RemoteException |
| */ |
| public void sendHotspotStoppedMessage() throws RemoteException { |
| Message message = Message.obtain(); |
| message.what = WifiManager.HOTSPOT_STOPPED; |
| mMessenger.send(message); |
| } |
| |
| public int getPid() { |
| return mPid; |
| } |
| } |