1 /*
2  * Copyright (C) 2013 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.launcher3;
18 
19 import android.app.Activity;
20 import android.content.ComponentName;
21 import android.content.Context;
22 import android.content.Intent;
23 import android.content.ServiceConnection;
24 import android.content.pm.PackageManager;
25 import android.net.Uri;
26 import android.os.*;
27 import android.util.Log;
28 
29 import java.io.*;
30 import java.util.ArrayList;
31 import java.util.Arrays;
32 import java.util.zip.ZipEntry;
33 import java.util.zip.ZipOutputStream;
34 
35 public class MemoryDumpActivity extends Activity {
36     private static final String TAG = "MemoryDumpActivity";
37 
38     @Override
onCreate(Bundle savedInstanceState)39     public void onCreate(Bundle savedInstanceState) {
40         super.onCreate(savedInstanceState);
41     }
42 
zipUp(ArrayList<String> paths)43     public static String zipUp(ArrayList<String> paths) {
44         final int BUFSIZ = 256 * 1024; // 256K
45         final byte[] buf = new byte[BUFSIZ];
46         final String zipfilePath = String.format("%s/hprof-%d.zip",
47                 Environment.getExternalStorageDirectory(),
48                 System.currentTimeMillis());
49         ZipOutputStream zos = null;
50         try {
51             OutputStream os = new FileOutputStream(zipfilePath);
52             zos = new ZipOutputStream(new BufferedOutputStream(os));
53             for (String filename : paths) {
54                 InputStream is = null;
55                 try {
56                     is = new BufferedInputStream(new FileInputStream(filename));
57                     ZipEntry entry = new ZipEntry(filename);
58                     zos.putNextEntry(entry);
59                     int len;
60                     while ( 0 < (len = is.read(buf, 0, BUFSIZ)) ) {
61                         zos.write(buf, 0, len);
62                     }
63                     zos.closeEntry();
64                 } finally {
65                     is.close();
66                 }
67             }
68         } catch (IOException e) {
69             Log.e(TAG, "error zipping up profile data", e);
70             return null;
71         } finally {
72             if (zos != null) {
73                 try {
74                     zos.close();
75                 } catch (IOException e) {
76                     // ugh, whatever
77                 }
78             }
79         }
80         return zipfilePath;
81     }
82 
dumpHprofAndShare(final Context context, MemoryTracker tracker)83     public static void dumpHprofAndShare(final Context context, MemoryTracker tracker) {
84         final StringBuilder body = new StringBuilder();
85 
86         final ArrayList<String> paths = new ArrayList<String>();
87         final int myPid = android.os.Process.myPid();
88 
89         final int[] pids_orig = tracker.getTrackedProcesses();
90         final int[] pids_copy = Arrays.copyOf(pids_orig, pids_orig.length);
91         for (int pid : pids_copy) {
92             MemoryTracker.ProcessMemInfo info = tracker.getMemInfo(pid);
93             if (info != null) {
94                 body.append("pid ").append(pid).append(":")
95                     .append(" up=").append(info.getUptime())
96                     .append(" pss=").append(info.currentPss)
97                     .append(" uss=").append(info.currentUss)
98                     .append("\n");
99             }
100             if (pid == myPid) {
101                 final String path = String.format("%s/launcher-memory-%d.ahprof",
102                         Environment.getExternalStorageDirectory(),
103                         pid);
104                 Log.v(TAG, "Dumping memory info for process " + pid + " to " + path);
105                 try {
106                     android.os.Debug.dumpHprofData(path); // will block
107                 } catch (IOException e) {
108                     Log.e(TAG, "error dumping memory:", e);
109                 }
110                 paths.add(path);
111             }
112         }
113 
114         String zipfile = zipUp(paths);
115 
116         if (zipfile == null) return;
117 
118         Intent shareIntent = new Intent(Intent.ACTION_SEND);
119         shareIntent.setType("application/zip");
120 
121         final PackageManager pm = context.getPackageManager();
122         shareIntent.putExtra(Intent.EXTRA_SUBJECT, String.format("Launcher memory dump (%d)", myPid));
123         String appVersion;
124         try {
125             appVersion = pm.getPackageInfo(context.getPackageName(), 0).versionName;
126         } catch (PackageManager.NameNotFoundException e) {
127             appVersion = "?";
128         }
129 
130         body.append("\nApp version: ").append(appVersion).append("\nBuild: ").append(Build.DISPLAY).append("\n");
131         shareIntent.putExtra(Intent.EXTRA_TEXT, body.toString());
132 
133         final File pathFile = new File(zipfile);
134         final Uri pathUri = Uri.fromFile(pathFile);
135 
136         shareIntent.putExtra(Intent.EXTRA_STREAM, pathUri);
137         context.startActivity(shareIntent);
138     }
139 
140     @Override
onStart()141     public void onStart() {
142         super.onStart();
143 
144         startDump(this, new Runnable() {
145             @Override
146             public void run() {
147                 finish();
148             }
149         });
150     }
151 
startDump(final Context context)152     public static void startDump(final Context context) {
153         startDump(context, null);
154     }
155 
startDump(final Context context, final Runnable andThen)156     public static void startDump(final Context context, final Runnable andThen) {
157         final ServiceConnection connection = new ServiceConnection() {
158             public void onServiceConnected(ComponentName className, IBinder service) {
159                 Log.v(TAG, "service connected, dumping...");
160                 dumpHprofAndShare(context,
161                         ((MemoryTracker.MemoryTrackerInterface) service).getService());
162                 context.unbindService(this);
163                 if (andThen != null) andThen.run();
164             }
165 
166             public void onServiceDisconnected(ComponentName className) {
167             }
168         };
169         Log.v(TAG, "attempting to bind to memory tracker");
170         context.bindService(new Intent(context, MemoryTracker.class),
171                 connection, Context.BIND_AUTO_CREATE);
172     }
173 }
174