blob: d77b998fa247b9dbea83d7d460e2a5dd144dae8f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/*
* Copyright (C) 2008 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 com.android.internal.os;
import android.os.IBinder;
import android.os.SystemClock;
import android.util.EventLog;
import dalvik.system.VMRuntime;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
/**
* Private and debugging Binder APIs.
*
* @see IBinder
*/
public class BinderInternal {
static WeakReference<GcWatcher> sGcWatcher
= new WeakReference<GcWatcher>(new GcWatcher());
static ArrayList<Runnable> sGcWatchers = new ArrayList<>();
static Runnable[] sTmpWatchers = new Runnable[1];
static long sLastGcTime;
static final class GcWatcher {
@Override
protected void finalize() throws Throwable {
handleGc();
sLastGcTime = SystemClock.uptimeMillis();
synchronized (sGcWatchers) {
sTmpWatchers = sGcWatchers.toArray(sTmpWatchers);
}
for (int i=0; i<sTmpWatchers.length; i++) {
if (sTmpWatchers[i] != null) {
sTmpWatchers[i].run();
}
}
sGcWatcher = new WeakReference<GcWatcher>(new GcWatcher());
}
}
public static void addGcWatcher(Runnable watcher) {
synchronized (sGcWatchers) {
sGcWatchers.add(watcher);
}
}
/**
* Add the calling thread to the IPC thread pool. This function does
* not return until the current process is exiting.
*/
public static final native void joinThreadPool();
/**
* Return the system time (as reported by {@link SystemClock#uptimeMillis
* SystemClock.uptimeMillis()}) that the last garbage collection occurred
* in this process. This is not for general application use, and the
* meaning of "when a garbage collection occurred" will change as the
* garbage collector evolves.
*
* @return Returns the time as per {@link SystemClock#uptimeMillis
* SystemClock.uptimeMillis()} of the last garbage collection.
*/
public static long getLastGcTime() {
return sLastGcTime;
}
/**
* Return the global "context object" of the system. This is usually
* an implementation of IServiceManager, which you can use to find
* other services.
*/
public static final native IBinder getContextObject();
/**
* Special for system process to not allow incoming calls to run at
* background scheduling priority.
* @hide
*/
public static final native void disableBackgroundScheduling(boolean disable);
static native final void handleGc();
public static void forceGc(String reason) {
EventLog.writeEvent(2741, reason);
VMRuntime.getRuntime().requestConcurrentGC();
}
static void forceBinderGc() {
forceGc("Binder");
}
}
|
