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/*
* Copyright (C) 2015 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.car;
import android.car.Car;
import android.car.test.ICarTest;
import android.content.Context;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.Log;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
/**
* Service to allow testing / mocking vehicle HAL.
* This service uses Vehicle HAL APIs directly (one exception) as vehicle HAL mocking anyway
* requires accessing that level directly.
*/
class CarTestService extends ICarTest.Stub implements CarServiceBase {
private static final String TAG = CarTestService.class.getSimpleName();
private final Context mContext;
private final ICarImpl mICarImpl;
private final Map<IBinder, TokenDeathRecipient> mTokens = new HashMap<>();
CarTestService(Context context, ICarImpl carImpl) {
mContext = context;
mICarImpl = carImpl;
}
@Override
public void init() {
// nothing to do.
// This service should not reset anything for init / release to maintain mocking.
}
@Override
public void release() {
// nothing to do
// This service should not reset anything for init / release to maintain mocking.
}
@Override
public void dump(PrintWriter writer) {
writer.println("*CarTestService*");
writer.println(" mTokens:" + Arrays.toString(mTokens.entrySet().toArray()));
}
@Override
public void stopCarService(IBinder token) throws RemoteException {
Log.d(TAG, "stopCarService, token: " + token);
ICarImpl.assertPermission(mContext, Car.PERMISSION_CAR_TEST_SERVICE);
synchronized (this) {
if (mTokens.containsKey(token)) {
Log.w(TAG, "Calling stopCarService twice with the same token.");
return;
}
TokenDeathRecipient deathRecipient = new TokenDeathRecipient(token);
mTokens.put(token, deathRecipient);
token.linkToDeath(deathRecipient, 0);
if (mTokens.size() == 1) {
mICarImpl.release();
}
}
}
@Override
public void startCarService(IBinder token) throws RemoteException {
Log.d(TAG, "startCarService, token: " + token);
ICarImpl.assertPermission(mContext, Car.PERMISSION_CAR_TEST_SERVICE);
releaseToken(token);
}
private synchronized void releaseToken(IBinder token) {
Log.d(TAG, "releaseToken, token: " + token);
DeathRecipient deathRecipient = mTokens.remove(token);
if (deathRecipient != null) {
token.unlinkToDeath(deathRecipient, 0);
}
if (mTokens.size() == 0) {
CarServiceUtils.runOnMain(mICarImpl::init);
}
}
private class TokenDeathRecipient implements DeathRecipient {
private final IBinder mToken;
TokenDeathRecipient(IBinder token) throws RemoteException {
mToken = token;
}
@Override
public void binderDied() {
releaseToken(mToken);
}
}
}
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