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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.net;
import android.net.NetworkStats;
/**
* Interface for NetworkManagementService to query tethering statistics and set data limits.
*
* TODO: this does not really need to be an interface since Tethering runs in the same process
* as NetworkManagementService. Consider refactoring Tethering to use direct access to
* NetworkManagementService instead of using INetworkManagementService, and then deleting this
* interface.
*
* @hide
*/
interface ITetheringStatsProvider {
// Returns cumulative statistics for all tethering sessions since boot, on all upstreams.
// @code {how} is one of the NetworkStats.STATS_PER_* constants. If {@code how} is
// {@code STATS_PER_IFACE}, the provider should not include any traffic that is already
// counted by kernel interface counters.
NetworkStats getTetherStats(int how);
// Sets the interface quota for the specified upstream interface. This is defined as the number
// of bytes, starting from zero and counting from now, after which data should stop being
// forwarded to/from the specified upstream. A value of QUOTA_UNLIMITED means there is no limit.
void setInterfaceQuota(String iface, long quotaBytes);
// Indicates that no data usage limit is set.
const int QUOTA_UNLIMITED = -1;
}
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