/*
|
* 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;
|
}
|
}
|
