Add IRS stub.

/*

 * Copyright (C) 2021 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.tare;

import android.annotation.NonNull;

import android.content.Context;

import android.util.Log;

import com.android.server.SystemService;

/**

 * Responsible for handling app's ARC count based on events, ensuring ARCs are credited when

 * appropriate, and reclaiming ARCs at the right times. The IRS deals with the high level details

 * while the {@link Teller} deals with the nitty-gritty details.

 *

 * Note on locking: Any function with the suffix 'Locked' needs to lock on {@link #mLock}.

 *

 * @hide

 */

public class InternalResourceService extends SystemService {

    public static final String TAG = "TARE-IRS";

    public static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);

    /** Global local for all resource economy state. */

    private final Object mLock = new Object();

    /**

     * Initializes the system service.

     * <p>

     * Subclasses must define a single argument constructor that accepts the context

     * and passes it to super.

     * </p>

     *

     * @param context The system server context.

     */

    public InternalResourceService(Context context) {

        super(context);

    }

    @Override

    public void onStart() {

    }

    @NonNull

    Object getLock() {

        return mLock;

    }

}