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/*
* Copyright (C) 2017 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.app.timezone;
import android.app.timezone.ICallback;
import android.app.timezone.RulesState;
import android.os.ParcelFileDescriptor;
/**
* Interface to the TimeZone Rules Manager Service.
*
* <p>This interface is only intended for system apps to call. They should use the
* {@link android.app.timezone.RulesManager} class rather than going through this
* Binder interface directly. See {@link android.app.timezone.RulesManager} for more complete
* documentation.
*
* {@hide}
*/
interface IRulesManager {
/**
* Returns information about the current time zone rules state such as the IANA version of
* the system and any currently installed distro. This method is intended to allow clients to
* determine if the current state can be improved; for example by passing the information to a
* server that may provide a new distro for download.
*/
RulesState getRulesState();
/**
* Requests installation of the supplied distro. The distro must have been checked for integrity
* by the caller or have been received via a trusted mechanism.
*
* @param distroFileDescriptor the file descriptor for the distro
* @param checkToken an optional token provided if the install was triggered in response to a
* {@link RulesUpdaterContract#ACTION_TRIGGER_RULES_UPDATE_CHECK} intent
* @param callback the {@link ICallback} to receive callbacks related to the
* installation
* @return zero if the installation will be attempted; nonzero on error
*/
int requestInstall(in ParcelFileDescriptor distroFileDescriptor, in byte[] checkToken,
ICallback callback);
/**
* Requests uninstallation of the currently installed distro (leaving the device with no
* distro installed).
*
* @param checkToken an optional token provided if the uninstall was triggered in response to a
* {@link RulesUpdaterContract#ACTION_TRIGGER_RULES_UPDATE_CHECK} intent
* @param callback the {@link ICallback} to receive callbacks related to the
* uninstall
* @return zero if the uninstallation will be attempted; nonzero on error
*/
int requestUninstall(in byte[] checkToken, ICallback callback);
/**
* Requests the system does not modify the currently installed time zone distro, if any. This
* method records the fact that a time zone check operation triggered by the system is now
* complete and there was nothing to do. The token passed should be the one presented when the
* check was triggered.
*
* <p>Note: Passing {@code success == false} may result in more checks being triggered. Clients
* should be careful not to pass false if the failure is unlikely to resolve by itself.
*
* @param checkToken an optional token provided if the install was triggered in response to a
* {@link RulesUpdaterContract#ACTION_TRIGGER_RULES_UPDATE_CHECK} intent
* @param success true if the check was successful, false if it was not successful but may
* succeed if it is retried
*/
void requestNothing(in byte[] token, boolean success);
}
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