| /* |
| * Copyright (C) 2020 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.rotationresolver; |
| |
| import static android.content.Context.BIND_FOREGROUND_SERVICE; |
| import static android.content.Context.BIND_INCLUDE_CAPABILITIES; |
| import static android.service.rotationresolver.RotationResolverService.ROTATION_RESULT_FAILURE_CANCELLED; |
| import static android.service.rotationresolver.RotationResolverService.ROTATION_RESULT_FAILURE_TIMED_OUT; |
| |
| import static com.android.server.rotationresolver.RotationResolverManagerService.errorCodeToProto; |
| import static com.android.server.rotationresolver.RotationResolverManagerService.surfaceRotationToProto; |
| |
| import android.annotation.NonNull; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.os.CancellationSignal; |
| import android.os.Handler; |
| import android.os.ICancellationSignal; |
| import android.os.RemoteException; |
| import android.os.SystemClock; |
| import android.rotationresolver.RotationResolverInternal; |
| import android.service.rotationresolver.IRotationResolverCallback; |
| import android.service.rotationresolver.IRotationResolverService; |
| import android.service.rotationresolver.RotationResolutionRequest; |
| import android.service.rotationresolver.RotationResolverService; |
| import android.util.IndentingPrintWriter; |
| import android.util.Slog; |
| |
| import com.android.internal.annotations.GuardedBy; |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.infra.ServiceConnector; |
| |
| import java.lang.ref.WeakReference; |
| |
| |
| /** Manages the connection to the remote rotation resolver service. */ |
| class RemoteRotationResolverService extends ServiceConnector.Impl<IRotationResolverService> { |
| private static final String TAG = RemoteRotationResolverService.class.getSimpleName(); |
| |
| private final long mIdleUnbindTimeoutMs; |
| private final Object mLock; |
| |
| RemoteRotationResolverService(Context context, ComponentName serviceName, |
| int userId, long idleUnbindTimeoutMs, Object lock) { |
| super(context, |
| new Intent(RotationResolverService.SERVICE_INTERFACE).setComponent(serviceName), |
| BIND_FOREGROUND_SERVICE | BIND_INCLUDE_CAPABILITIES, userId, |
| IRotationResolverService.Stub::asInterface); |
| |
| mIdleUnbindTimeoutMs = idleUnbindTimeoutMs; |
| mLock = lock; |
| |
| // Bind right away. |
| connect(); |
| } |
| |
| @Override |
| protected long getAutoDisconnectTimeoutMs() { |
| // Disable automatic unbinding. |
| return -1; |
| } |
| |
| @GuardedBy("mLock") |
| public void resolveRotationLocked(RotationRequest request) { |
| final RotationResolutionRequest remoteRequest = request.mRemoteRequest; |
| post(service -> service.resolveRotation(request.mIRotationResolverCallback, remoteRequest)); |
| |
| // schedule a timeout. |
| getJobHandler().postDelayed(() -> { |
| synchronized (request.mLock) { |
| if (!request.mIsFulfilled) { |
| request.mCallbackInternal.onFailure(ROTATION_RESULT_FAILURE_TIMED_OUT); |
| Slog.d(TAG, "Trying to cancel the remote request. Reason: Timed out."); |
| request.cancelInternal(); |
| } |
| } |
| }, request.mRemoteRequest.getTimeoutMillis()); |
| } |
| |
| @VisibleForTesting |
| static final class RotationRequest { |
| @NonNull |
| private final IRotationResolverCallback mIRotationResolverCallback; |
| @NonNull |
| private ICancellationSignal mCancellation; |
| @NonNull |
| private final CancellationSignal mCancellationSignalInternal; |
| @NonNull |
| final RotationResolverInternal.RotationResolverCallbackInternal |
| mCallbackInternal; |
| |
| @GuardedBy("mLock") |
| boolean mIsFulfilled; |
| |
| @VisibleForTesting |
| final RotationResolutionRequest mRemoteRequest; |
| |
| boolean mIsDispatched; |
| private final Object mLock = new Object(); |
| private final long mRequestStartTimeMillis; |
| |
| RotationRequest( |
| @NonNull RotationResolverInternal.RotationResolverCallbackInternal callbackInternal, |
| RotationResolutionRequest request, @NonNull CancellationSignal cancellationSignal) { |
| mCallbackInternal = callbackInternal; |
| mRemoteRequest = request; |
| mIRotationResolverCallback = new RotationResolverCallback(this); |
| mCancellationSignalInternal = cancellationSignal; |
| mRequestStartTimeMillis = SystemClock.elapsedRealtime(); |
| } |
| |
| |
| void cancelInternal() { |
| Handler.getMain().post(() -> { |
| synchronized (mLock) { |
| if (mIsFulfilled) { |
| return; |
| } |
| mIsFulfilled = true; |
| try { |
| if (mCancellation != null) { |
| mCancellation.cancel(); |
| mCancellation = null; |
| } |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to cancel request in remote service."); |
| } |
| } |
| }); |
| mCallbackInternal.onFailure(ROTATION_RESULT_FAILURE_CANCELLED); |
| } |
| |
| void dump(IndentingPrintWriter ipw) { |
| ipw.increaseIndent(); |
| ipw.println("is dispatched=" + mIsDispatched); |
| ipw.println("is fulfilled:=" + mIsFulfilled); |
| ipw.decreaseIndent(); |
| } |
| |
| private static class RotationResolverCallback extends IRotationResolverCallback.Stub { |
| private WeakReference<RotationRequest> mRequestWeakReference; |
| |
| RotationResolverCallback(RotationRequest request) { |
| this.mRequestWeakReference = new WeakReference<>(request); |
| } |
| |
| @Override |
| public void onSuccess(int rotation) { |
| final RotationRequest request = mRequestWeakReference.get(); |
| synchronized (request.mLock) { |
| if (request.mIsFulfilled) { |
| Slog.w(TAG, "Callback received after the rotation request is fulfilled."); |
| return; |
| } |
| request.mIsFulfilled = true; |
| request.mCallbackInternal.onSuccess(rotation); |
| final long timeToCalculate = |
| SystemClock.elapsedRealtime() - request.mRequestStartTimeMillis; |
| RotationResolverManagerService.logRotationStatsWithTimeToCalculate( |
| request.mRemoteRequest.getProposedRotation(), |
| request.mRemoteRequest.getCurrentRotation(), |
| surfaceRotationToProto(rotation), timeToCalculate); |
| Slog.d(TAG, "onSuccess:" + rotation); |
| Slog.d(TAG, "timeToCalculate:" + timeToCalculate); |
| } |
| } |
| |
| @Override |
| public void onFailure(int error) { |
| final RotationRequest request = mRequestWeakReference.get(); |
| synchronized (request.mLock) { |
| if (request.mIsFulfilled) { |
| Slog.w(TAG, "Callback received after the rotation request is fulfilled."); |
| return; |
| } |
| request.mIsFulfilled = true; |
| request.mCallbackInternal.onFailure(error); |
| final long timeToCalculate = |
| SystemClock.elapsedRealtime() - request.mRequestStartTimeMillis; |
| RotationResolverManagerService.logRotationStatsWithTimeToCalculate( |
| request.mRemoteRequest.getProposedRotation(), |
| request.mRemoteRequest.getCurrentRotation(), errorCodeToProto(error), |
| timeToCalculate); |
| Slog.d(TAG, "onFailure:" + error); |
| Slog.d(TAG, "timeToCalculate:" + timeToCalculate); |
| } |
| } |
| |
| @Override |
| public void onCancellable(@NonNull ICancellationSignal cancellation) { |
| final RotationRequest request = mRequestWeakReference.get(); |
| synchronized (request.mLock) { |
| request.mCancellation = cancellation; |
| if (request.mCancellationSignalInternal.isCanceled()) { |
| // Dispatch the cancellation signal if the client has cancelled the request. |
| try { |
| cancellation.cancel(); |
| } catch (RemoteException e) { |
| Slog.w(TAG, "Failed to cancel the remote request."); |
| } |
| } |
| } |
| |
| } |
| } |
| } |
| } |