Added java wrapper for update engine stable (a1a72609) · Commits · e / os / android_frameworks_base

Android.bp

+1 −0

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		@@ -127,6 +127,7 @@ filegroup {
		":libcamera_client_aidl",
		":libcamera_client_framework_aidl",
		":libupdate_engine_aidl",
		":libupdate_engine_stable-V2-java-source",
		":logd_aidl",
		":resourcemanager_aidl",
		":storaged_aidl",

core/java/android/os/UpdateEngineStable.java

0 → 100644

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		/*
		* Copyright (C) 2024 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 android.os;

		import android.annotation.IntDef;

		/**
		* UpdateEngineStable handles calls to the update engine stalbe which takes care of A/B OTA updates.
		* This interface has lesser functionalities than UpdateEngine and doesn't allow cancel.
		*
		* <p>The minimal flow is:
		*
		* <ol>
		* <li>Create a new UpdateEngineStable instance.
		* <li>Call {@link #bind}, provide callback function.
		* <li>Call {@link #applyPayloadFd}.
		* </ol>
		*
		* The APIs defined in this class and UpdateEngineStableCallback class must be in sync with the ones
		* in {@code system/update_engine/stable/android/os/IUpdateEngineStable.aidl} and {@code
		* ssystem/update_engine/stable/android/os/IUpdateEngineStableCallback.aidl}.
		*
		* @hide
		*/
		public class UpdateEngineStable {
		private static final String TAG = "UpdateEngineStable";

		private static final String UPDATE_ENGINE_STABLE_SERVICE =
		"android.os.UpdateEngineStableService";

		/**
		* Error codes from update engine upon finishing a call to {@link applyPayloadFd}. Values will
		* be passed via the callback function {@link
		* UpdateEngineStableCallback#onPayloadApplicationComplete}. Values must agree with the ones in
		* {@code system/update_engine/common/error_code.h}.
		*/
		/** @hide */
		@IntDef(
		value = {
		UpdateEngine.ErrorCodeConstants.SUCCESS,
		UpdateEngine.ErrorCodeConstants.ERROR,
		UpdateEngine.ErrorCodeConstants.FILESYSTEM_COPIER_ERROR,
		UpdateEngine.ErrorCodeConstants.POST_INSTALL_RUNNER_ERROR,
		UpdateEngine.ErrorCodeConstants.PAYLOAD_MISMATCHED_TYPE_ERROR,
		UpdateEngine.ErrorCodeConstants.INSTALL_DEVICE_OPEN_ERROR,
		UpdateEngine.ErrorCodeConstants.KERNEL_DEVICE_OPEN_ERROR,
		UpdateEngine.ErrorCodeConstants.DOWNLOAD_TRANSFER_ERROR,
		UpdateEngine.ErrorCodeConstants.PAYLOAD_HASH_MISMATCH_ERROR,
		UpdateEngine.ErrorCodeConstants.PAYLOAD_SIZE_MISMATCH_ERROR,
		UpdateEngine.ErrorCodeConstants.DOWNLOAD_PAYLOAD_VERIFICATION_ERROR,
		UpdateEngine.ErrorCodeConstants.PAYLOAD_TIMESTAMP_ERROR,
		UpdateEngine.ErrorCodeConstants.UPDATED_BUT_NOT_ACTIVE,
		UpdateEngine.ErrorCodeConstants.NOT_ENOUGH_SPACE,
		UpdateEngine.ErrorCodeConstants.DEVICE_CORRUPTED,
		})
		public @interface ErrorCode {}

		private final IUpdateEngineStable mUpdateEngineStable;
		private IUpdateEngineStableCallback mUpdateEngineStableCallback = null;
		private final Object mUpdateEngineStableCallbackLock = new Object();

		/**
		* Creates a new instance.
		*
		* @hide
		*/
		public UpdateEngineStable() {
		mUpdateEngineStable =
		IUpdateEngineStable.Stub.asInterface(
		ServiceManager.getService(UPDATE_ENGINE_STABLE_SERVICE));
		if (mUpdateEngineStable == null) {
		throw new IllegalStateException("Failed to find " + UPDATE_ENGINE_STABLE_SERVICE);
		}
		}

		/**
		* Prepares this instance for use. The callback will be notified on any status change, and when
		* the update completes. A handler can be supplied to control which thread runs the callback, or
		* null.
		*
		* @hide
		*/
		public boolean bind(final UpdateEngineStableCallback callback, final Handler handler) {
		synchronized (mUpdateEngineStableCallbackLock) {
		mUpdateEngineStableCallback =
		new IUpdateEngineStableCallback.Stub() {
		@Override
		public void onStatusUpdate(final int status, final float percent) {
		if (handler != null) {
		handler.post(
		new Runnable() {
		@Override
		public void run() {
		callback.onStatusUpdate(status, percent);
		}
		});
		} else {
		callback.onStatusUpdate(status, percent);
		}
		}

		@Override
		public void onPayloadApplicationComplete(final int errorCode) {
		if (handler != null) {
		handler.post(
		new Runnable() {
		@Override
		public void run() {
		callback.onPayloadApplicationComplete(errorCode);
		}
		});
		} else {
		callback.onPayloadApplicationComplete(errorCode);
		}
		}

		@Override
		public int getInterfaceVersion() {
		return super.VERSION;
		}

		@Override
		public String getInterfaceHash() {
		return super.HASH;
		}
		};

		try {
		return mUpdateEngineStable.bind(mUpdateEngineStableCallback);
		} catch (RemoteException e) {
		throw e.rethrowFromSystemServer();
		}
		}
		}

		/**
		* Equivalent to {@code bind(callback, null)}.
		*
		* @hide
		*/
		public boolean bind(final UpdateEngineStableCallback callback) {
		return bind(callback, null);
		}

		/**
		* Applies payload from given ParcelFileDescriptor. Usage is same as UpdateEngine#applyPayload
		*
		* @hide
		*/
		public void applyPayloadFd(
		ParcelFileDescriptor fd, long offset, long size, String[] headerKeyValuePairs) {
		try {
		mUpdateEngineStable.applyPayloadFd(fd, offset, size, headerKeyValuePairs);
		} catch (RemoteException e) {
		throw e.rethrowFromSystemServer();
		}
		}

		/**
		* Unbinds the last bound callback function.
		*
		* @hide
		*/
		public boolean unbind() {
		synchronized (mUpdateEngineStableCallbackLock) {
		if (mUpdateEngineStableCallback == null) {
		return true;
		}
		try {
		boolean result = mUpdateEngineStable.unbind(mUpdateEngineStableCallback);
		mUpdateEngineStableCallback = null;
		return result;
		} catch (RemoteException e) {
		throw e.rethrowFromSystemServer();
		}
		}
		}
		}

core/java/android/os/UpdateEngineStableCallback.java

0 → 100644

+46 −0

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		/*
		* Copyright (C) 2024 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 android.os;

		/**
		* Callback function for UpdateEngineStable. Used to keep the caller up to date with progress, so
		* the UI (if any) can be updated.
		*
		* <p>The APIs defined in this class and UpdateEngineStable class must be in sync with the ones in
		* system/update_engine/stable/android/os/IUpdateEngineStable.aidl and
		* system/update_engine/stable/android/os/IUpdateEngineStableCallback.aidl.
		*
		* <p>{@hide}
		*/
		public abstract class UpdateEngineStableCallback {

		/**
		* Invoked when anything changes. The value of {@code status} will be one of the values from
		* {@link UpdateEngine.UpdateStatusConstants}, and {@code percent} will be valid
		*
		* @hide
		*/
		public abstract void onStatusUpdate(int status, float percent);

		/**
		* Invoked when the payload has been applied, whether successfully or unsuccessfully. The value
		* of {@code errorCode} will be one of the values from {@link UpdateEngine.ErrorCodeConstants}.
		*
		* @hide
		*/
		public abstract void onPayloadApplicationComplete(@UpdateEngineStable.ErrorCode int errorCode);
		}