public synchronized void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
!= PackageManager.PERMISSION_GRANTED) {
pw.println("Permission Denial: Can't dump DropBoxManagerService");
return;
}
try {
init();
} catch (IOException e) {
pw.println("Can't initialize: " + e);
Slog.e(TAG, "Can't init", e);
return;
}
if (PROFILE_DUMP) Debug.startMethodTracing("/data/trace/dropbox.dump");
StringBuilder out = new StringBuilder();
boolean doPrint = false, doFile = false;
ArrayList<String> searchArgs = new ArrayList<String>();
for (int i = 0; args != null && i < args.length; i++) {
if (args[i].equals("-p") || args[i].equals("--print")) {
doPrint = true;
} else if (args[i].equals("-f") || args[i].equals("--file")) {
doFile = true;
} else if (args[i].startsWith("-")) {
out.append("Unknown argument: ").append(args[i]).append("\n");
} else {
searchArgs.add(args[i]);
}
}
out.append("Drop box contents: ").append(mAllFiles.contents.size()).append(" entries\n");
if (!searchArgs.isEmpty()) {
out.append("Searching for:");
for (String a : searchArgs) out.append(" ").append(a);
out.append("\n");
}
int numFound = 0, numArgs = searchArgs.size();
Time time = new Time();
out.append("\n");
for (EntryFile entry : mAllFiles.contents) {
time.set(entry.timestampMillis);
String date = time.format("%Y-%m-%d %H:%M:%S");
boolean match = true;
for (int i = 0; i < numArgs && match; i++) {
String arg = searchArgs.get(i);
match = (date.contains(arg) || arg.equals(entry.tag));
}
if (!match) continue;
numFound++;
if (doPrint) out.append("========================================\n");
out.append(date).append(" ").append(entry.tag == null ? "(no tag)" : entry.tag);
if (entry.file == null) {
out.append(" (no file)\n");
continue;
} else if ((entry.flags & DropBoxManager.IS_EMPTY) != 0) {
out.append(" (contents lost)\n");
continue;
} else {
out.append(" (");
if ((entry.flags & DropBoxManager.IS_GZIPPED) != 0) out.append("compressed ");
out.append((entry.flags & DropBoxManager.IS_TEXT) != 0 ? "text" : "data");
out.append(", ").append(entry.file.length()).append(" bytes)\n");
}
if (doFile || (doPrint && (entry.flags & DropBoxManager.IS_TEXT) == 0)) {
if (!doPrint) out.append(" ");
out.append(entry.file.getPath()).append("\n");
}
if ((entry.flags & DropBoxManager.IS_TEXT) != 0 && (doPrint || !doFile)) {
DropBoxManager.Entry dbe = null;
InputStreamReader isr = null;
try {
dbe = new DropBoxManager.Entry(entry.tag, entry.timestampMillis, entry.file, entry.flags);
if (doPrint) {
isr = new InputStreamReader(dbe.getInputStream());
char[] buf = new char[4096];
boolean newline = false;
for (; ; ) {
int n = isr.read(buf);
if (n <= 0) break;
out.append(buf, 0, n);
newline = (buf[n - 1] == '\n');
// Flush periodically when printing to avoid out-of-memory.
if (out.length() > 65536) {
pw.write(out.toString());
out.setLength(0);
}
}
if (!newline) out.append("\n");
} else {
String text = dbe.getText(70);
out.append(" ");
if (text == null) {
out.append("[null]");
} else {
boolean truncated = (text.length() == 70);
out.append(text.trim().replace('\n', '/'));
if (truncated) out.append(" ...");
}
out.append("\n");
}
} catch (IOException e) {
out.append("*** ").append(e.toString()).append("\n");
Slog.e(TAG, "Can't read: " + entry.file, e);
} finally {
if (dbe != null) dbe.close();
if (isr != null) {
try {
isr.close();
} catch (IOException unused) {
}
}
}
}
if (doPrint) out.append("\n");
}
if (numFound == 0) out.append("(No entries found.)\n");
if (args == null || args.length == 0) {
if (!doPrint) out.append("\n");
out.append("Usage: dumpsys dropbox [--print|--file] [YYYY-mm-dd] [HH:MM:SS] [tag]\n");
}
pw.write(out.toString());
if (PROFILE_DUMP) Debug.stopMethodTracing();
}
@Override
public void add(DropBoxManager.Entry entry) {
File temp = null;
OutputStream output = null;
final String tag = entry.getTag();
try {
int flags = entry.getFlags();
if ((flags & DropBoxManager.IS_EMPTY) != 0) throw new IllegalArgumentException();
init();
if (!isTagEnabled(tag)) return;
long max = trimToFit();
long lastTrim = System.currentTimeMillis();
byte[] buffer = new byte[mBlockSize];
InputStream input = entry.getInputStream();
// First, accumulate up to one block worth of data in memory before
// deciding whether to compress the data or not.
int read = 0;
while (read < buffer.length) {
int n = input.read(buffer, read, buffer.length - read);
if (n <= 0) break;
read += n;
}
// If we have at least one block, compress it -- otherwise, just write
// the data in uncompressed form.
temp = new File(mDropBoxDir, "drop" + Thread.currentThread().getId() + ".tmp");
int bufferSize = mBlockSize;
if (bufferSize > 4096) bufferSize = 4096;
if (bufferSize < 512) bufferSize = 512;
FileOutputStream foutput = new FileOutputStream(temp);
output = new BufferedOutputStream(foutput, bufferSize);
if (read == buffer.length && ((flags & DropBoxManager.IS_GZIPPED) == 0)) {
output = new GZIPOutputStream(output);
flags = flags | DropBoxManager.IS_GZIPPED;
}
do {
output.write(buffer, 0, read);
long now = System.currentTimeMillis();
if (now - lastTrim > 30 * 1000) {
max = trimToFit(); // In case data dribbles in slowly
lastTrim = now;
}
read = input.read(buffer);
if (read <= 0) {
FileUtils.sync(foutput);
output.close(); // Get a final size measurement
output = null;
} else {
output.flush(); // So the size measurement is pseudo-reasonable
}
long len = temp.length();
if (len > max) {
Slog.w(TAG, "Dropping: " + tag + " (" + temp.length() + " > " + max + " bytes)");
temp.delete();
temp = null; // Pass temp = null to createEntry() to leave a tombstone
break;
}
} while (read > 0);
long time = createEntry(temp, tag, flags);
temp = null;
final Intent dropboxIntent = new Intent(DropBoxManager.ACTION_DROPBOX_ENTRY_ADDED);
dropboxIntent.putExtra(DropBoxManager.EXTRA_TAG, tag);
dropboxIntent.putExtra(DropBoxManager.EXTRA_TIME, time);
if (!mBooted) {
dropboxIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
}
// Call sendBroadcast after returning from this call to avoid deadlock. In particular
// the caller may be holding the WindowManagerService lock but sendBroadcast requires a
// lock in ActivityManagerService. ActivityManagerService has been caught holding that
// very lock while waiting for the WindowManagerService lock.
mHandler.sendMessage(mHandler.obtainMessage(MSG_SEND_BROADCAST, dropboxIntent));
} catch (IOException e) {
Slog.e(TAG, "Can't write: " + tag, e);
} finally {
try {
if (output != null) output.close();
} catch (IOException e) {
}
entry.close();
if (temp != null) temp.delete();
}
}