The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2006 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 android.os; |
| 18 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 19 | import android.util.Log; |
Dianne Hackborn | db4e33f | 2013-04-01 17:28:16 -0700 | [diff] [blame] | 20 | import com.android.internal.util.FastPrintWriter; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 21 | |
| 22 | import java.io.FileDescriptor; |
| 23 | import java.io.FileOutputStream; |
| 24 | import java.io.IOException; |
| 25 | import java.io.PrintWriter; |
| 26 | import java.lang.ref.WeakReference; |
| 27 | import java.lang.reflect.Modifier; |
| 28 | |
| 29 | /** |
| 30 | * Base class for a remotable object, the core part of a lightweight |
| 31 | * remote procedure call mechanism defined by {@link IBinder}. |
| 32 | * This class is an implementation of IBinder that provides |
| 33 | * the standard support creating a local implementation of such an object. |
| 34 | * |
| 35 | * <p>Most developers will not implement this class directly, instead using the |
Scott Main | 40eee61 | 2012-08-06 17:48:37 -0700 | [diff] [blame] | 36 | * <a href="{@docRoot}guide/components/aidl.html">aidl</a> tool to describe the desired |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 37 | * interface, having it generate the appropriate Binder subclass. You can, |
| 38 | * however, derive directly from Binder to implement your own custom RPC |
| 39 | * protocol or simply instantiate a raw Binder object directly to use as a |
| 40 | * token that can be shared across processes. |
| 41 | * |
| 42 | * @see IBinder |
| 43 | */ |
| 44 | public class Binder implements IBinder { |
| 45 | /* |
| 46 | * Set this flag to true to detect anonymous, local or member classes |
| 47 | * that extend this Binder class and that are not static. These kind |
| 48 | * of classes can potentially create leaks. |
| 49 | */ |
| 50 | private static final boolean FIND_POTENTIAL_LEAKS = false; |
| 51 | private static final String TAG = "Binder"; |
| 52 | |
Dianne Hackborn | 5b88a2f | 2013-05-03 16:25:11 -0700 | [diff] [blame] | 53 | /** |
| 54 | * Control whether dump() calls are allowed. |
| 55 | */ |
| 56 | private static String sDumpDisabled = null; |
| 57 | |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 58 | /* mObject is used by native code, do not remove or rename */ |
Ashok Bhat | 8ab665d | 2014-01-22 16:00:20 +0000 | [diff] [blame] | 59 | private long mObject; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 60 | private IInterface mOwner; |
| 61 | private String mDescriptor; |
| 62 | |
| 63 | /** |
| 64 | * Return the ID of the process that sent you the current transaction |
| 65 | * that is being processed. This pid can be used with higher-level |
| 66 | * system services to determine its identity and check permissions. |
| 67 | * If the current thread is not currently executing an incoming transaction, |
| 68 | * then its own pid is returned. |
| 69 | */ |
| 70 | public static final native int getCallingPid(); |
| 71 | |
| 72 | /** |
Dianne Hackborn | 74ee865 | 2012-09-07 18:33:18 -0700 | [diff] [blame] | 73 | * Return the Linux uid assigned to the process that sent you the |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 74 | * current transaction that is being processed. This uid can be used with |
| 75 | * higher-level system services to determine its identity and check |
| 76 | * permissions. If the current thread is not currently executing an |
| 77 | * incoming transaction, then its own uid is returned. |
| 78 | */ |
| 79 | public static final native int getCallingUid(); |
Amith Yamasani | 742a671 | 2011-05-04 14:49:28 -0700 | [diff] [blame] | 80 | |
| 81 | /** |
Dianne Hackborn | 74ee865 | 2012-09-07 18:33:18 -0700 | [diff] [blame] | 82 | * Return the UserHandle assigned to the process that sent you the |
| 83 | * current transaction that is being processed. This is the user |
| 84 | * of the caller. It is distinct from {@link #getCallingUid()} in that a |
| 85 | * particular user will have multiple distinct apps running under it each |
| 86 | * with their own uid. If the current thread is not currently executing an |
| 87 | * incoming transaction, then its own UserHandle is returned. |
| 88 | */ |
| 89 | public static final UserHandle getCallingUserHandle() { |
| 90 | return new UserHandle(UserHandle.getUserId(getCallingUid())); |
| 91 | } |
| 92 | |
| 93 | /** |
Brad Fitzpatrick | a0527f2 | 2010-03-25 20:40:34 -0700 | [diff] [blame] | 94 | * Reset the identity of the incoming IPC on the current thread. This can |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 95 | * be useful if, while handling an incoming call, you will be calling |
| 96 | * on interfaces of other objects that may be local to your process and |
| 97 | * need to do permission checks on the calls coming into them (so they |
| 98 | * will check the permission of your own local process, and not whatever |
| 99 | * process originally called you). |
Brad Fitzpatrick | a0527f2 | 2010-03-25 20:40:34 -0700 | [diff] [blame] | 100 | * |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 101 | * @return Returns an opaque token that can be used to restore the |
| 102 | * original calling identity by passing it to |
| 103 | * {@link #restoreCallingIdentity(long)}. |
Brad Fitzpatrick | a0527f2 | 2010-03-25 20:40:34 -0700 | [diff] [blame] | 104 | * |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 105 | * @see #getCallingPid() |
| 106 | * @see #getCallingUid() |
| 107 | * @see #restoreCallingIdentity(long) |
| 108 | */ |
| 109 | public static final native long clearCallingIdentity(); |
Brad Fitzpatrick | a0527f2 | 2010-03-25 20:40:34 -0700 | [diff] [blame] | 110 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 111 | /** |
Brad Fitzpatrick | a0527f2 | 2010-03-25 20:40:34 -0700 | [diff] [blame] | 112 | * Restore the identity of the incoming IPC on the current thread |
| 113 | * back to a previously identity that was returned by {@link |
| 114 | * #clearCallingIdentity}. |
| 115 | * |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 116 | * @param token The opaque token that was previously returned by |
| 117 | * {@link #clearCallingIdentity}. |
Brad Fitzpatrick | a0527f2 | 2010-03-25 20:40:34 -0700 | [diff] [blame] | 118 | * |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 119 | * @see #clearCallingIdentity |
| 120 | */ |
| 121 | public static final native void restoreCallingIdentity(long token); |
Brad Fitzpatrick | 727de40 | 2010-07-07 16:06:39 -0700 | [diff] [blame] | 122 | |
| 123 | /** |
| 124 | * Sets the native thread-local StrictMode policy mask. |
| 125 | * |
| 126 | * <p>The StrictMode settings are kept in two places: a Java-level |
| 127 | * threadlocal for libcore/Dalvik, and a native threadlocal (set |
| 128 | * here) for propagation via Binder calls. This is a little |
| 129 | * unfortunate, but necessary to break otherwise more unfortunate |
| 130 | * dependencies either of Dalvik on Android, or Android |
| 131 | * native-only code on Dalvik. |
| 132 | * |
| 133 | * @see StrictMode |
| 134 | * @hide |
| 135 | */ |
| 136 | public static final native void setThreadStrictModePolicy(int policyMask); |
| 137 | |
| 138 | /** |
| 139 | * Gets the current native thread-local StrictMode policy mask. |
| 140 | * |
| 141 | * @see #setThreadStrictModePolicy |
| 142 | * @hide |
| 143 | */ |
| 144 | public static final native int getThreadStrictModePolicy(); |
| 145 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 146 | /** |
| 147 | * Flush any Binder commands pending in the current thread to the kernel |
| 148 | * driver. This can be |
| 149 | * useful to call before performing an operation that may block for a long |
| 150 | * time, to ensure that any pending object references have been released |
| 151 | * in order to prevent the process from holding on to objects longer than |
| 152 | * it needs to. |
| 153 | */ |
| 154 | public static final native void flushPendingCommands(); |
| 155 | |
| 156 | /** |
| 157 | * Add the calling thread to the IPC thread pool. This function does |
| 158 | * not return until the current process is exiting. |
| 159 | */ |
| 160 | public static final native void joinThreadPool(); |
Jeff Brown | 1951ce8 | 2013-04-04 22:45:12 -0700 | [diff] [blame] | 161 | |
| 162 | /** |
| 163 | * Returns true if the specified interface is a proxy. |
| 164 | * @hide |
| 165 | */ |
| 166 | public static final boolean isProxy(IInterface iface) { |
| 167 | return iface.asBinder() != iface; |
| 168 | } |
| 169 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 170 | /** |
| 171 | * Default constructor initializes the object. |
| 172 | */ |
| 173 | public Binder() { |
| 174 | init(); |
| 175 | |
| 176 | if (FIND_POTENTIAL_LEAKS) { |
| 177 | final Class<? extends Binder> klass = getClass(); |
| 178 | if ((klass.isAnonymousClass() || klass.isMemberClass() || klass.isLocalClass()) && |
| 179 | (klass.getModifiers() & Modifier.STATIC) == 0) { |
| 180 | Log.w(TAG, "The following Binder class should be static or leaks might occur: " + |
| 181 | klass.getCanonicalName()); |
| 182 | } |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | /** |
| 187 | * Convenience method for associating a specific interface with the Binder. |
| 188 | * After calling, queryLocalInterface() will be implemented for you |
| 189 | * to return the given owner IInterface when the corresponding |
| 190 | * descriptor is requested. |
| 191 | */ |
| 192 | public void attachInterface(IInterface owner, String descriptor) { |
| 193 | mOwner = owner; |
| 194 | mDescriptor = descriptor; |
| 195 | } |
| 196 | |
| 197 | /** |
| 198 | * Default implementation returns an empty interface name. |
| 199 | */ |
| 200 | public String getInterfaceDescriptor() { |
| 201 | return mDescriptor; |
| 202 | } |
| 203 | |
| 204 | /** |
| 205 | * Default implementation always returns true -- if you got here, |
| 206 | * the object is alive. |
| 207 | */ |
| 208 | public boolean pingBinder() { |
| 209 | return true; |
| 210 | } |
| 211 | |
| 212 | /** |
| 213 | * {@inheritDoc} |
| 214 | * |
| 215 | * Note that if you're calling on a local binder, this always returns true |
| 216 | * because your process is alive if you're calling it. |
| 217 | */ |
| 218 | public boolean isBinderAlive() { |
| 219 | return true; |
| 220 | } |
| 221 | |
| 222 | /** |
| 223 | * Use information supplied to attachInterface() to return the |
| 224 | * associated IInterface if it matches the requested |
| 225 | * descriptor. |
| 226 | */ |
| 227 | public IInterface queryLocalInterface(String descriptor) { |
| 228 | if (mDescriptor.equals(descriptor)) { |
| 229 | return mOwner; |
| 230 | } |
| 231 | return null; |
| 232 | } |
Dianne Hackborn | 5b88a2f | 2013-05-03 16:25:11 -0700 | [diff] [blame] | 233 | |
| 234 | /** |
| 235 | * Control disabling of dump calls in this process. This is used by the system |
| 236 | * process watchdog to disable incoming dump calls while it has detecting the system |
| 237 | * is hung and is reporting that back to the activity controller. This is to |
| 238 | * prevent the controller from getting hung up on bug reports at this point. |
| 239 | * @hide |
| 240 | * |
| 241 | * @param msg The message to show instead of the dump; if null, dumps are |
| 242 | * re-enabled. |
| 243 | */ |
| 244 | public static void setDumpDisabled(String msg) { |
| 245 | synchronized (Binder.class) { |
| 246 | sDumpDisabled = msg; |
| 247 | } |
| 248 | } |
| 249 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 250 | /** |
| 251 | * Default implementation is a stub that returns false. You will want |
| 252 | * to override this to do the appropriate unmarshalling of transactions. |
| 253 | * |
| 254 | * <p>If you want to call this, call transact(). |
| 255 | */ |
| 256 | protected boolean onTransact(int code, Parcel data, Parcel reply, |
| 257 | int flags) throws RemoteException { |
| 258 | if (code == INTERFACE_TRANSACTION) { |
| 259 | reply.writeString(getInterfaceDescriptor()); |
| 260 | return true; |
| 261 | } else if (code == DUMP_TRANSACTION) { |
| 262 | ParcelFileDescriptor fd = data.readFileDescriptor(); |
| 263 | String[] args = data.readStringArray(); |
| 264 | if (fd != null) { |
| 265 | try { |
| 266 | dump(fd.getFileDescriptor(), args); |
| 267 | } finally { |
| 268 | try { |
| 269 | fd.close(); |
| 270 | } catch (IOException e) { |
Brad Fitzpatrick | eb75888e | 2010-07-26 17:47:45 -0700 | [diff] [blame] | 271 | // swallowed, not propagated back to the caller |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 272 | } |
| 273 | } |
| 274 | } |
Brad Fitzpatrick | eb75888e | 2010-07-26 17:47:45 -0700 | [diff] [blame] | 275 | // Write the StrictMode header. |
| 276 | if (reply != null) { |
| 277 | reply.writeNoException(); |
| 278 | } else { |
| 279 | StrictMode.clearGatheredViolations(); |
| 280 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 281 | return true; |
| 282 | } |
| 283 | return false; |
| 284 | } |
| 285 | |
| 286 | /** |
| 287 | * Implemented to call the more convenient version |
| 288 | * {@link #dump(FileDescriptor, PrintWriter, String[])}. |
| 289 | */ |
| 290 | public void dump(FileDescriptor fd, String[] args) { |
| 291 | FileOutputStream fout = new FileOutputStream(fd); |
Dianne Hackborn | db4e33f | 2013-04-01 17:28:16 -0700 | [diff] [blame] | 292 | PrintWriter pw = new FastPrintWriter(fout); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 293 | try { |
Dianne Hackborn | 5b88a2f | 2013-05-03 16:25:11 -0700 | [diff] [blame] | 294 | final String disabled; |
| 295 | synchronized (Binder.class) { |
| 296 | disabled = sDumpDisabled; |
| 297 | } |
| 298 | if (disabled == null) { |
Dianne Hackborn | d293224 | 2013-08-05 18:18:42 -0700 | [diff] [blame] | 299 | try { |
| 300 | dump(fd, pw, args); |
| 301 | } catch (SecurityException e) { |
Dianne Hackborn | d293224 | 2013-08-05 18:18:42 -0700 | [diff] [blame] | 302 | pw.println("Security exception: " + e.getMessage()); |
| 303 | throw e; |
| 304 | } catch (Throwable e) { |
| 305 | // Unlike usual calls, in this case if an exception gets thrown |
| 306 | // back to us we want to print it back in to the dump data, since |
| 307 | // that is where the caller expects all interesting information to |
| 308 | // go. |
| 309 | pw.println(); |
| 310 | pw.println("Exception occurred while dumping:"); |
| 311 | e.printStackTrace(pw); |
| 312 | } |
Dianne Hackborn | 5b88a2f | 2013-05-03 16:25:11 -0700 | [diff] [blame] | 313 | } else { |
| 314 | pw.println(sDumpDisabled); |
| 315 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 316 | } finally { |
| 317 | pw.flush(); |
| 318 | } |
| 319 | } |
| 320 | |
| 321 | /** |
Dianne Hackborn | e17aeb3 | 2011-04-07 15:11:57 -0700 | [diff] [blame] | 322 | * Like {@link #dump(FileDescriptor, String[])}, but ensures the target |
| 323 | * executes asynchronously. |
| 324 | */ |
| 325 | public void dumpAsync(final FileDescriptor fd, final String[] args) { |
| 326 | final FileOutputStream fout = new FileOutputStream(fd); |
Dianne Hackborn | db4e33f | 2013-04-01 17:28:16 -0700 | [diff] [blame] | 327 | final PrintWriter pw = new FastPrintWriter(fout); |
Dianne Hackborn | e17aeb3 | 2011-04-07 15:11:57 -0700 | [diff] [blame] | 328 | Thread thr = new Thread("Binder.dumpAsync") { |
| 329 | public void run() { |
| 330 | try { |
| 331 | dump(fd, pw, args); |
| 332 | } finally { |
| 333 | pw.flush(); |
| 334 | } |
| 335 | } |
| 336 | }; |
| 337 | thr.start(); |
| 338 | } |
| 339 | |
| 340 | /** |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 341 | * Print the object's state into the given stream. |
| 342 | * |
| 343 | * @param fd The raw file descriptor that the dump is being sent to. |
| 344 | * @param fout The file to which you should dump your state. This will be |
| 345 | * closed for you after you return. |
| 346 | * @param args additional arguments to the dump request. |
| 347 | */ |
| 348 | protected void dump(FileDescriptor fd, PrintWriter fout, String[] args) { |
| 349 | } |
| 350 | |
| 351 | /** |
| 352 | * Default implementation rewinds the parcels and calls onTransact. On |
| 353 | * the remote side, transact calls into the binder to do the IPC. |
| 354 | */ |
| 355 | public final boolean transact(int code, Parcel data, Parcel reply, |
| 356 | int flags) throws RemoteException { |
Joe Onorato | 43a1765 | 2011-04-06 19:22:23 -0700 | [diff] [blame] | 357 | if (false) Log.v("Binder", "Transact: " + code + " to " + this); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 358 | if (data != null) { |
| 359 | data.setDataPosition(0); |
| 360 | } |
| 361 | boolean r = onTransact(code, data, reply, flags); |
| 362 | if (reply != null) { |
| 363 | reply.setDataPosition(0); |
| 364 | } |
| 365 | return r; |
| 366 | } |
| 367 | |
| 368 | /** |
| 369 | * Local implementation is a no-op. |
| 370 | */ |
| 371 | public void linkToDeath(DeathRecipient recipient, int flags) { |
| 372 | } |
| 373 | |
| 374 | /** |
| 375 | * Local implementation is a no-op. |
| 376 | */ |
| 377 | public boolean unlinkToDeath(DeathRecipient recipient, int flags) { |
| 378 | return true; |
| 379 | } |
| 380 | |
| 381 | protected void finalize() throws Throwable { |
| 382 | try { |
| 383 | destroy(); |
| 384 | } finally { |
| 385 | super.finalize(); |
| 386 | } |
| 387 | } |
| 388 | |
| 389 | private native final void init(); |
| 390 | private native final void destroy(); |
Brad Fitzpatrick | 5b74719 | 2010-07-12 11:05:38 -0700 | [diff] [blame] | 391 | |
| 392 | // Entry point from android_util_Binder.cpp's onTransact |
Ashok Bhat | 8ab665d | 2014-01-22 16:00:20 +0000 | [diff] [blame] | 393 | private boolean execTransact(int code, long dataObj, long replyObj, |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 394 | int flags) { |
| 395 | Parcel data = Parcel.obtain(dataObj); |
| 396 | Parcel reply = Parcel.obtain(replyObj); |
| 397 | // theoretically, we should call transact, which will call onTransact, |
| 398 | // but all that does is rewind it, and we just got these from an IPC, |
| 399 | // so we'll just call it directly. |
| 400 | boolean res; |
Igor Murashkin | 7eb6cfe | 2013-08-16 14:07:11 -0700 | [diff] [blame] | 401 | // Log any exceptions as warnings, don't silently suppress them. |
| 402 | // If the call was FLAG_ONEWAY then these exceptions disappear into the ether. |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 403 | try { |
| 404 | res = onTransact(code, data, reply, flags); |
| 405 | } catch (RemoteException e) { |
Igor Murashkin | 7eb6cfe | 2013-08-16 14:07:11 -0700 | [diff] [blame] | 406 | if ((flags & FLAG_ONEWAY) != 0) { |
| 407 | Log.w(TAG, "Binder call failed.", e); |
| 408 | } |
Jeff Sharkey | 7f97e65 | 2011-12-14 18:07:54 -0800 | [diff] [blame] | 409 | reply.setDataPosition(0); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 410 | reply.writeException(e); |
| 411 | res = true; |
| 412 | } catch (RuntimeException e) { |
Igor Murashkin | 7eb6cfe | 2013-08-16 14:07:11 -0700 | [diff] [blame] | 413 | if ((flags & FLAG_ONEWAY) != 0) { |
| 414 | Log.w(TAG, "Caught a RuntimeException from the binder stub implementation.", e); |
| 415 | } |
Jeff Sharkey | 7f97e65 | 2011-12-14 18:07:54 -0800 | [diff] [blame] | 416 | reply.setDataPosition(0); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 417 | reply.writeException(e); |
| 418 | res = true; |
Mattias Petersson | 19f2274 | 2010-11-05 08:25:38 +0100 | [diff] [blame] | 419 | } catch (OutOfMemoryError e) { |
Igor Murashkin | 7eb6cfe | 2013-08-16 14:07:11 -0700 | [diff] [blame] | 420 | // Unconditionally log this, since this is generally unrecoverable. |
| 421 | Log.e(TAG, "Caught an OutOfMemoryError from the binder stub implementation.", e); |
Mattias Petersson | 19f2274 | 2010-11-05 08:25:38 +0100 | [diff] [blame] | 422 | RuntimeException re = new RuntimeException("Out of memory", e); |
Jeff Sharkey | 7f97e65 | 2011-12-14 18:07:54 -0800 | [diff] [blame] | 423 | reply.setDataPosition(0); |
Mattias Petersson | 19f2274 | 2010-11-05 08:25:38 +0100 | [diff] [blame] | 424 | reply.writeException(re); |
| 425 | res = true; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 426 | } |
| 427 | reply.recycle(); |
| 428 | data.recycle(); |
| 429 | return res; |
| 430 | } |
| 431 | } |
| 432 | |
| 433 | final class BinderProxy implements IBinder { |
| 434 | public native boolean pingBinder(); |
| 435 | public native boolean isBinderAlive(); |
| 436 | |
| 437 | public IInterface queryLocalInterface(String descriptor) { |
| 438 | return null; |
| 439 | } |
| 440 | |
| 441 | public native String getInterfaceDescriptor() throws RemoteException; |
| 442 | public native boolean transact(int code, Parcel data, Parcel reply, |
| 443 | int flags) throws RemoteException; |
| 444 | public native void linkToDeath(DeathRecipient recipient, int flags) |
| 445 | throws RemoteException; |
| 446 | public native boolean unlinkToDeath(DeathRecipient recipient, int flags); |
| 447 | |
| 448 | public void dump(FileDescriptor fd, String[] args) throws RemoteException { |
| 449 | Parcel data = Parcel.obtain(); |
Brad Fitzpatrick | eb75888e | 2010-07-26 17:47:45 -0700 | [diff] [blame] | 450 | Parcel reply = Parcel.obtain(); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 451 | data.writeFileDescriptor(fd); |
| 452 | data.writeStringArray(args); |
| 453 | try { |
Brad Fitzpatrick | eb75888e | 2010-07-26 17:47:45 -0700 | [diff] [blame] | 454 | transact(DUMP_TRANSACTION, data, reply, 0); |
| 455 | reply.readException(); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 456 | } finally { |
| 457 | data.recycle(); |
Brad Fitzpatrick | eb75888e | 2010-07-26 17:47:45 -0700 | [diff] [blame] | 458 | reply.recycle(); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 459 | } |
| 460 | } |
| 461 | |
Dianne Hackborn | e17aeb3 | 2011-04-07 15:11:57 -0700 | [diff] [blame] | 462 | public void dumpAsync(FileDescriptor fd, String[] args) throws RemoteException { |
| 463 | Parcel data = Parcel.obtain(); |
| 464 | Parcel reply = Parcel.obtain(); |
| 465 | data.writeFileDescriptor(fd); |
| 466 | data.writeStringArray(args); |
| 467 | try { |
| 468 | transact(DUMP_TRANSACTION, data, reply, FLAG_ONEWAY); |
Dianne Hackborn | e17aeb3 | 2011-04-07 15:11:57 -0700 | [diff] [blame] | 469 | } finally { |
| 470 | data.recycle(); |
| 471 | reply.recycle(); |
| 472 | } |
| 473 | } |
| 474 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 475 | BinderProxy() { |
| 476 | mSelf = new WeakReference(this); |
| 477 | } |
| 478 | |
| 479 | @Override |
| 480 | protected void finalize() throws Throwable { |
| 481 | try { |
| 482 | destroy(); |
| 483 | } finally { |
| 484 | super.finalize(); |
| 485 | } |
| 486 | } |
| 487 | |
| 488 | private native final void destroy(); |
| 489 | |
| 490 | private static final void sendDeathNotice(DeathRecipient recipient) { |
Joe Onorato | 43a1765 | 2011-04-06 19:22:23 -0700 | [diff] [blame] | 491 | if (false) Log.v("JavaBinder", "sendDeathNotice to " + recipient); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 492 | try { |
| 493 | recipient.binderDied(); |
| 494 | } |
| 495 | catch (RuntimeException exc) { |
| 496 | Log.w("BinderNative", "Uncaught exception from death notification", |
| 497 | exc); |
| 498 | } |
| 499 | } |
| 500 | |
| 501 | final private WeakReference mSelf; |
Ashok Bhat | 8ab665d | 2014-01-22 16:00:20 +0000 | [diff] [blame] | 502 | private long mObject; |
| 503 | private long mOrgue; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 504 | } |