1 /** 2 * Copyright (c) 2020, The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.net.resolv.aidl; 18 19 /** 20 * The DNS health result of queries. 21 * 22 * Only sent for API calls that actually generated network traffic: 23 * - No cache hits 24 * - No power management errors (rcode == INTERNAL_ERROR && errno == EPERM) 25 * - Only lookup result is OK or TIMEOUT. 26 * 27 * This must not be used for use-cases other than evaluating the health of DNS queries. The behavior 28 * of this interface will change across regular module updates, and in particular it will be updated 29 * to stop sending one event by DNS API call, and instead report network failures in realtime. 30 * 31 * Non-public API, only callable from Connectivity or NetworkStack Mainline modules. 32 * {@hide} 33 */ 34 @JavaDerive(toString=true) 35 parcelable DnsHealthEventParcel { 36 37 /*** The ID of the network that lookup was performed on. */ 38 int netId; 39 40 /** 41 * The health result of queries. 42 * Currently, this value is for data stall detection and it only checks whether result is 43 * timeout or not. So if the result is neither OK nor TIMEOUT, will not send this event. 44 */ 45 int healthResult; 46 47 /*** The round trip time for each dns query that received a reply */ 48 int[] successRttMicros; 49 } 50