1 /*
2  * Copyright (C) 2018 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 com.android.server.wm;
18 
19 import android.util.proto.ProtoOutputStream;
20 import android.view.RemoteAnimationAdapter;
21 
22 /**
23  * Interface used by the owner/creator of a process that owns windows to listen to changes from the
24  * WM side.
25  * @see WindowProcessController
26  */
27 public interface WindowProcessListener {
28 
29     /** Clear the profiler record if we are currently profiling this process. */
clearProfilerIfNeeded()30     void clearProfilerIfNeeded();
31 
32     /** Update the service connection for this process based on activities it might have. */
updateServiceConnectionActivities()33     void updateServiceConnectionActivities();
34 
35     /** Set or clear flag that we would like to clean-up UI resources for this process. */
setPendingUiClean(boolean pendingUiClean)36     void setPendingUiClean(boolean pendingUiClean);
37 
38     /**
39      * Set flag that we would like to clean-up UI resources for this process and force new process
40      * state.
41      */
setPendingUiCleanAndForceProcessStateUpTo(int newState)42     void setPendingUiCleanAndForceProcessStateUpTo(int newState);
43 
44     /** Update the process information. */
updateProcessInfo(boolean updateServiceConnectionActivities, boolean activityChange, boolean updateOomAdj)45     void updateProcessInfo(boolean updateServiceConnectionActivities, boolean activityChange,
46             boolean updateOomAdj);
47 
48     /**
49      * Returns true if the process is removed and we should completely clean up the related records
50      * belonging to this process.
51      */
isRemoved()52     boolean isRemoved();
53 
54     /**
55      * Returns true if the process is in a cached state.
56      */
isCached()57     boolean isCached();
58 
59     /** Returns the total time (in milliseconds) spent executing in both user and system code. */
getCpuTime()60     long getCpuTime();
61 
62     /** Called when we are in the process on starting an activity. */
onStartActivity(int topProcessState, boolean setProfileProc, String packageName, long versionCode)63     void onStartActivity(int topProcessState, boolean setProfileProc, String packageName,
64             long versionCode);
65 
66     /** App died :(...oh well */
appDied(String reason)67     void appDied(String reason);
dumpDebug(ProtoOutputStream proto, long fieldId)68     void dumpDebug(ProtoOutputStream proto, long fieldId);
69 
70     /**
71      * Sets if the process is currently running a remote animation, which is taken a signal for
72      * determining oom adjustment and scheduling behavior.
73      *
74      * @param runningRemoteAnimation True if the process is running a remote animation, false
75      *                               otherwise.
76      * @see RemoteAnimationAdapter
77      */
setRunningRemoteAnimation(boolean runningRemoteAnimation)78     void setRunningRemoteAnimation(boolean runningRemoteAnimation);
79 }
80