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
|
/*
* Copyright (C) 2009 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.server;
import android.content.BroadcastReceiver;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.os.Build;
import android.os.DropBoxManager;
import android.os.FileUtils;
import android.os.SystemProperties;
import android.provider.Settings;
import android.util.Log;
import com.android.internal.os.RecoverySystem;
import java.io.File;
import java.io.IOException;
/**
* Performs a number of miscellaneous, non-system-critical actions
* after the system has finished booting.
*/
public class BootReceiver extends BroadcastReceiver {
private static final String TAG = "BootReceiver";
@Override
public void onReceive(Context context, Intent intent) {
try {
logBootEvents(context);
} catch (Exception e) {
Log.e(TAG, "Can't log boot events", e);
}
try {
RecoverySystem.handleAftermath();
} catch (Exception e) {
Log.e(TAG, "Can't handle recovery aftermath", e);
}
try {
// Start the load average overlay, if activated
ContentResolver res = context.getContentResolver();
if (Settings.System.getInt(res, Settings.System.SHOW_PROCESSES, 0) != 0) {
Intent loadavg = new Intent(context, com.android.server.LoadAverageService.class);
context.startService(loadavg);
}
} catch (Exception e) {
Log.e(TAG, "Can't start load average service", e);
}
}
private void logBootEvents(Context context) throws IOException {
DropBoxManager db = (DropBoxManager) context.getSystemService(Context.DROPBOX_SERVICE);
String build =
"Build: " + Build.FINGERPRINT + "\nKernel: " +
FileUtils.readTextFile(new File("/proc/version"), 1024, "...\n");
if (SystemProperties.getLong("ro.runtime.firstboot", 0) == 0) {
String now = Long.toString(System.currentTimeMillis());
SystemProperties.set("ro.runtime.firstboot", now);
if (db != null) db.addText("SYSTEM_BOOT", build);
} else {
if (db != null) db.addText("SYSTEM_RESTART", build);
return; // Subsequent boot, don't log kernel boot log
}
ContentResolver cr = context.getContentResolver();
logBootFile(cr, db, "/cache/recovery/log", "SYSTEM_RECOVERY_LOG");
logBootFile(cr, db, "/proc/last_kmsg", "SYSTEM_LAST_KMSG");
logBootFile(cr, db, "/data/dontpanic/apanic_console", "APANIC_CONSOLE");
logBootFile(cr, db, "/data/dontpanic/apanic_threads", "APANIC_THREADS");
}
private void logBootFile(ContentResolver cr, DropBoxManager db, String filename, String tag)
throws IOException {
if (cr == null || db == null || !db.isTagEnabled(tag)) return; // Logging disabled
File file = new File(filename);
long fileTime = file.lastModified();
if (fileTime <= 0) return; // File does not exist
String setting = "logfile:" + filename;
long lastTime = Settings.Secure.getLong(cr, setting, 0);
if (lastTime == fileTime) return; // Already logged this particular file
db.addFile(tag, file, DropBoxManager.IS_TEXT);
}
}
|
