| /* |
| * Copyright (C) 2022 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.wm; |
| |
| import android.content.Context; |
| import android.os.IBinder; |
| import android.os.RemoteException; |
| import android.window.ITaskFpsCallback; |
| |
| import java.util.HashMap; |
| |
| final class TaskFpsCallbackController { |
| |
| private final Context mContext; |
| private final HashMap<IBinder, Long> mTaskFpsCallbacks; |
| private final HashMap<IBinder, IBinder.DeathRecipient> mDeathRecipients; |
| |
| TaskFpsCallbackController(Context context) { |
| mContext = context; |
| mTaskFpsCallbacks = new HashMap<>(); |
| mDeathRecipients = new HashMap<>(); |
| } |
| |
| void registerListener(int taskId, ITaskFpsCallback callback) { |
| if (callback == null) { |
| return; |
| } |
| |
| IBinder binder = callback.asBinder(); |
| if (mTaskFpsCallbacks.containsKey(binder)) { |
| return; |
| } |
| |
| final long nativeListener = nativeRegister(callback, taskId); |
| mTaskFpsCallbacks.put(binder, nativeListener); |
| |
| final IBinder.DeathRecipient deathRecipient = () -> unregisterListener(callback); |
| try { |
| binder.linkToDeath(deathRecipient, 0); |
| mDeathRecipients.put(binder, deathRecipient); |
| } catch (RemoteException e) { |
| // ignore |
| } |
| } |
| |
| void unregisterListener(ITaskFpsCallback callback) { |
| if (callback == null) { |
| return; |
| } |
| |
| IBinder binder = callback.asBinder(); |
| if (!mTaskFpsCallbacks.containsKey(binder)) { |
| return; |
| } |
| |
| binder.unlinkToDeath(mDeathRecipients.get(binder), 0); |
| mDeathRecipients.remove(binder); |
| |
| nativeUnregister(mTaskFpsCallbacks.get(binder)); |
| mTaskFpsCallbacks.remove(binder); |
| } |
| |
| private static native long nativeRegister(ITaskFpsCallback callback, int taskId); |
| private static native void nativeUnregister(long ptr); |
| } |