1 /*
2  * Copyright (C) 2017 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.car.storagemonitoring;
18 
19 import android.car.storagemonitoring.IIoStatsListener;
20 import android.car.storagemonitoring.IoStatsEntry;
21 import android.car.storagemonitoring.IoStats;
22 import android.car.storagemonitoring.WearEstimate;
23 import android.car.storagemonitoring.WearEstimateChange;
24 
25 /** @hide */
26 interface ICarStorageMonitoring {
27   /**
28    * Returns the value of the PRE_EOL register.
29    */
getPreEolIndicatorStatus()30   int getPreEolIndicatorStatus() = 1;
31 
32   /**
33    * Returns the current wear estimate indicators.
34    *
35    * @deprecated wear estimate data is unreliable
36    */
getWearEstimate()37   WearEstimate getWearEstimate() = 2;
38 
39   /**
40    * Returns the list of all observed wear estimate changes.
41    *
42    * @deprecated wear estimate data is unreliable
43    */
getWearEstimateHistory()44   List<WearEstimateChange> getWearEstimateHistory() = 3;
45 
46   /**
47    * Returns I/O stats as collected at service boot time.
48    *
49    * @deprecated use CarWatchdogManager#getResourceOveruseStats(int, int) instead.
50    */
getBootIoStats()51   List<IoStatsEntry> getBootIoStats() = 4;
52 
53   /**
54    * Returns total I/O stats as collected from kernel start until the last snapshot.
55    *
56    * @deprecated use CarWatchdogManager#getResourceOveruseStats(int, int) instead.
57    */
getAggregateIoStats()58   List<IoStatsEntry> getAggregateIoStats() = 5;
59 
60   /**
61    * Return the I/O stats deltas currently known to the service.
62    *
63    * @deprecated use CarWatchdogManager#getResourceOveruseStats(int, int) instead.
64    */
getIoStatsDeltas()65   List<IoStats> getIoStatsDeltas() = 6;
66 
67   /**
68    * Register a new listener to receive new I/O activity deltas as they are generated.
69    *
70    * @deprecated IIoStatsListener is deprecated
71    */
72   void registerListener(IIoStatsListener listener) = 7;
73 
74   /**
75    * Remove a listener registration, terminating delivery of I/O activity deltas to it.
76    *
77    * @deprecated IIoStatsListener is deprecated
78    */
79   void unregisterListener(IIoStatsListener listener) = 8;
80 
81   /**
82    * Returns the approximate amount of bytes written to disk during the previous shutdown.
83    *
84    * @deprecated use CarWatchdogManager#getResourceOveruseStats(int, int) instead.
85    */
getShutdownDiskWriteAmount()86   long getShutdownDiskWriteAmount() = 9;
87 }
88