Parcel.java revision 0f4928f1f73407485d6d94beda1dba1a2360ebbf
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 17package android.os; 18 19import android.annotation.IntegerRes; 20import android.annotation.NonNull; 21import android.annotation.Nullable; 22import android.text.TextUtils; 23import android.util.ArrayMap; 24import android.util.ArraySet; 25import android.util.Log; 26import android.util.Size; 27import android.util.SizeF; 28import android.util.SparseArray; 29import android.util.SparseBooleanArray; 30import android.util.SparseIntArray; 31 32import libcore.util.SneakyThrow; 33 34import java.io.ByteArrayInputStream; 35import java.io.ByteArrayOutputStream; 36import java.io.FileDescriptor; 37import java.io.FileNotFoundException; 38import java.io.IOException; 39import java.io.ObjectInputStream; 40import java.io.ObjectOutputStream; 41import java.io.ObjectStreamClass; 42import java.io.Serializable; 43import java.lang.reflect.Array; 44import java.lang.reflect.Field; 45import java.lang.reflect.Modifier; 46import java.util.ArrayList; 47import java.util.Arrays; 48import java.util.HashMap; 49import java.util.List; 50import java.util.Map; 51import java.util.Set; 52 53import dalvik.annotation.optimization.FastNative; 54import dalvik.system.VMRuntime; 55 56/** 57 * Container for a message (data and object references) that can 58 * be sent through an IBinder. A Parcel can contain both flattened data 59 * that will be unflattened on the other side of the IPC (using the various 60 * methods here for writing specific types, or the general 61 * {@link Parcelable} interface), and references to live {@link IBinder} 62 * objects that will result in the other side receiving a proxy IBinder 63 * connected with the original IBinder in the Parcel. 64 * 65 * <p class="note">Parcel is <strong>not</strong> a general-purpose 66 * serialization mechanism. This class (and the corresponding 67 * {@link Parcelable} API for placing arbitrary objects into a Parcel) is 68 * designed as a high-performance IPC transport. As such, it is not 69 * appropriate to place any Parcel data in to persistent storage: changes 70 * in the underlying implementation of any of the data in the Parcel can 71 * render older data unreadable.</p> 72 * 73 * <p>The bulk of the Parcel API revolves around reading and writing data 74 * of various types. There are six major classes of such functions available.</p> 75 * 76 * <h3>Primitives</h3> 77 * 78 * <p>The most basic data functions are for writing and reading primitive 79 * data types: {@link #writeByte}, {@link #readByte}, {@link #writeDouble}, 80 * {@link #readDouble}, {@link #writeFloat}, {@link #readFloat}, {@link #writeInt}, 81 * {@link #readInt}, {@link #writeLong}, {@link #readLong}, 82 * {@link #writeString}, {@link #readString}. Most other 83 * data operations are built on top of these. The given data is written and 84 * read using the endianess of the host CPU.</p> 85 * 86 * <h3>Primitive Arrays</h3> 87 * 88 * <p>There are a variety of methods for reading and writing raw arrays 89 * of primitive objects, which generally result in writing a 4-byte length 90 * followed by the primitive data items. The methods for reading can either 91 * read the data into an existing array, or create and return a new array. 92 * These available types are:</p> 93 * 94 * <ul> 95 * <li> {@link #writeBooleanArray(boolean[])}, 96 * {@link #readBooleanArray(boolean[])}, {@link #createBooleanArray()} 97 * <li> {@link #writeByteArray(byte[])}, 98 * {@link #writeByteArray(byte[], int, int)}, {@link #readByteArray(byte[])}, 99 * {@link #createByteArray()} 100 * <li> {@link #writeCharArray(char[])}, {@link #readCharArray(char[])}, 101 * {@link #createCharArray()} 102 * <li> {@link #writeDoubleArray(double[])}, {@link #readDoubleArray(double[])}, 103 * {@link #createDoubleArray()} 104 * <li> {@link #writeFloatArray(float[])}, {@link #readFloatArray(float[])}, 105 * {@link #createFloatArray()} 106 * <li> {@link #writeIntArray(int[])}, {@link #readIntArray(int[])}, 107 * {@link #createIntArray()} 108 * <li> {@link #writeLongArray(long[])}, {@link #readLongArray(long[])}, 109 * {@link #createLongArray()} 110 * <li> {@link #writeStringArray(String[])}, {@link #readStringArray(String[])}, 111 * {@link #createStringArray()}. 112 * <li> {@link #writeSparseBooleanArray(SparseBooleanArray)}, 113 * {@link #readSparseBooleanArray()}. 114 * </ul> 115 * 116 * <h3>Parcelables</h3> 117 * 118 * <p>The {@link Parcelable} protocol provides an extremely efficient (but 119 * low-level) protocol for objects to write and read themselves from Parcels. 120 * You can use the direct methods {@link #writeParcelable(Parcelable, int)} 121 * and {@link #readParcelable(ClassLoader)} or 122 * {@link #writeParcelableArray} and 123 * {@link #readParcelableArray(ClassLoader)} to write or read. These 124 * methods write both the class type and its data to the Parcel, allowing 125 * that class to be reconstructed from the appropriate class loader when 126 * later reading.</p> 127 * 128 * <p>There are also some methods that provide a more efficient way to work 129 * with Parcelables: {@link #writeTypedObject}, {@link #writeTypedArray}, 130 * {@link #writeTypedList}, {@link #readTypedObject}, 131 * {@link #createTypedArray} and {@link #createTypedArrayList}. These methods 132 * do not write the class information of the original object: instead, the 133 * caller of the read function must know what type to expect and pass in the 134 * appropriate {@link Parcelable.Creator Parcelable.Creator} instead to 135 * properly construct the new object and read its data. (To more efficient 136 * write and read a single Parceable object that is not null, you can directly 137 * call {@link Parcelable#writeToParcel Parcelable.writeToParcel} and 138 * {@link Parcelable.Creator#createFromParcel Parcelable.Creator.createFromParcel} 139 * yourself.)</p> 140 * 141 * <h3>Bundles</h3> 142 * 143 * <p>A special type-safe container, called {@link Bundle}, is available 144 * for key/value maps of heterogeneous values. This has many optimizations 145 * for improved performance when reading and writing data, and its type-safe 146 * API avoids difficult to debug type errors when finally marshalling the 147 * data contents into a Parcel. The methods to use are 148 * {@link #writeBundle(Bundle)}, {@link #readBundle()}, and 149 * {@link #readBundle(ClassLoader)}. 150 * 151 * <h3>Active Objects</h3> 152 * 153 * <p>An unusual feature of Parcel is the ability to read and write active 154 * objects. For these objects the actual contents of the object is not 155 * written, rather a special token referencing the object is written. When 156 * reading the object back from the Parcel, you do not get a new instance of 157 * the object, but rather a handle that operates on the exact same object that 158 * was originally written. There are two forms of active objects available.</p> 159 * 160 * <p>{@link Binder} objects are a core facility of Android's general cross-process 161 * communication system. The {@link IBinder} interface describes an abstract 162 * protocol with a Binder object. Any such interface can be written in to 163 * a Parcel, and upon reading you will receive either the original object 164 * implementing that interface or a special proxy implementation 165 * that communicates calls back to the original object. The methods to use are 166 * {@link #writeStrongBinder(IBinder)}, 167 * {@link #writeStrongInterface(IInterface)}, {@link #readStrongBinder()}, 168 * {@link #writeBinderArray(IBinder[])}, {@link #readBinderArray(IBinder[])}, 169 * {@link #createBinderArray()}, 170 * {@link #writeBinderList(List)}, {@link #readBinderList(List)}, 171 * {@link #createBinderArrayList()}.</p> 172 * 173 * <p>FileDescriptor objects, representing raw Linux file descriptor identifiers, 174 * can be written and {@link ParcelFileDescriptor} objects returned to operate 175 * on the original file descriptor. The returned file descriptor is a dup 176 * of the original file descriptor: the object and fd is different, but 177 * operating on the same underlying file stream, with the same position, etc. 178 * The methods to use are {@link #writeFileDescriptor(FileDescriptor)}, 179 * {@link #readFileDescriptor()}. 180 * 181 * <h3>Untyped Containers</h3> 182 * 183 * <p>A final class of methods are for writing and reading standard Java 184 * containers of arbitrary types. These all revolve around the 185 * {@link #writeValue(Object)} and {@link #readValue(ClassLoader)} methods 186 * which define the types of objects allowed. The container methods are 187 * {@link #writeArray(Object[])}, {@link #readArray(ClassLoader)}, 188 * {@link #writeList(List)}, {@link #readList(List, ClassLoader)}, 189 * {@link #readArrayList(ClassLoader)}, 190 * {@link #writeMap(Map)}, {@link #readMap(Map, ClassLoader)}, 191 * {@link #writeSparseArray(SparseArray)}, 192 * {@link #readSparseArray(ClassLoader)}. 193 */ 194public final class Parcel { 195 private static final boolean DEBUG_RECYCLE = false; 196 private static final boolean DEBUG_ARRAY_MAP = false; 197 private static final String TAG = "Parcel"; 198 199 @SuppressWarnings({"UnusedDeclaration"}) 200 private long mNativePtr; // used by native code 201 202 /** 203 * Flag indicating if {@link #mNativePtr} was allocated by this object, 204 * indicating that we're responsible for its lifecycle. 205 */ 206 private boolean mOwnsNativeParcelObject; 207 private long mNativeSize; 208 209 private RuntimeException mStack; 210 211 private static final int POOL_SIZE = 6; 212 private static final Parcel[] sOwnedPool = new Parcel[POOL_SIZE]; 213 private static final Parcel[] sHolderPool = new Parcel[POOL_SIZE]; 214 215 // Keep in sync with frameworks/native/include/private/binder/ParcelValTypes.h. 216 private static final int VAL_NULL = -1; 217 private static final int VAL_STRING = 0; 218 private static final int VAL_INTEGER = 1; 219 private static final int VAL_MAP = 2; 220 private static final int VAL_BUNDLE = 3; 221 private static final int VAL_PARCELABLE = 4; 222 private static final int VAL_SHORT = 5; 223 private static final int VAL_LONG = 6; 224 private static final int VAL_FLOAT = 7; 225 private static final int VAL_DOUBLE = 8; 226 private static final int VAL_BOOLEAN = 9; 227 private static final int VAL_CHARSEQUENCE = 10; 228 private static final int VAL_LIST = 11; 229 private static final int VAL_SPARSEARRAY = 12; 230 private static final int VAL_BYTEARRAY = 13; 231 private static final int VAL_STRINGARRAY = 14; 232 private static final int VAL_IBINDER = 15; 233 private static final int VAL_PARCELABLEARRAY = 16; 234 private static final int VAL_OBJECTARRAY = 17; 235 private static final int VAL_INTARRAY = 18; 236 private static final int VAL_LONGARRAY = 19; 237 private static final int VAL_BYTE = 20; 238 private static final int VAL_SERIALIZABLE = 21; 239 private static final int VAL_SPARSEBOOLEANARRAY = 22; 240 private static final int VAL_BOOLEANARRAY = 23; 241 private static final int VAL_CHARSEQUENCEARRAY = 24; 242 private static final int VAL_PERSISTABLEBUNDLE = 25; 243 private static final int VAL_SIZE = 26; 244 private static final int VAL_SIZEF = 27; 245 private static final int VAL_DOUBLEARRAY = 28; 246 247 // The initial int32 in a Binder call's reply Parcel header: 248 // Keep these in sync with libbinder's binder/Status.h. 249 private static final int EX_SECURITY = -1; 250 private static final int EX_BAD_PARCELABLE = -2; 251 private static final int EX_ILLEGAL_ARGUMENT = -3; 252 private static final int EX_NULL_POINTER = -4; 253 private static final int EX_ILLEGAL_STATE = -5; 254 private static final int EX_NETWORK_MAIN_THREAD = -6; 255 private static final int EX_UNSUPPORTED_OPERATION = -7; 256 private static final int EX_SERVICE_SPECIFIC = -8; 257 private static final int EX_PARCELABLE = -9; 258 private static final int EX_HAS_REPLY_HEADER = -128; // special; see below 259 // EX_TRANSACTION_FAILED is used exclusively in native code. 260 // see libbinder's binder/Status.h 261 private static final int EX_TRANSACTION_FAILED = -129; 262 263 @FastNative 264 private static native int nativeDataSize(long nativePtr); 265 @FastNative 266 private static native int nativeDataAvail(long nativePtr); 267 @FastNative 268 private static native int nativeDataPosition(long nativePtr); 269 @FastNative 270 private static native int nativeDataCapacity(long nativePtr); 271 @FastNative 272 private static native long nativeSetDataSize(long nativePtr, int size); 273 @FastNative 274 private static native void nativeSetDataPosition(long nativePtr, int pos); 275 @FastNative 276 private static native void nativeSetDataCapacity(long nativePtr, int size); 277 278 @FastNative 279 private static native boolean nativePushAllowFds(long nativePtr, boolean allowFds); 280 @FastNative 281 private static native void nativeRestoreAllowFds(long nativePtr, boolean lastValue); 282 283 private static native void nativeWriteByteArray(long nativePtr, byte[] b, int offset, int len); 284 private static native void nativeWriteBlob(long nativePtr, byte[] b, int offset, int len); 285 @FastNative 286 private static native void nativeWriteInt(long nativePtr, int val); 287 @FastNative 288 private static native void nativeWriteLong(long nativePtr, long val); 289 @FastNative 290 private static native void nativeWriteFloat(long nativePtr, float val); 291 @FastNative 292 private static native void nativeWriteDouble(long nativePtr, double val); 293 private static native void nativeWriteString(long nativePtr, String val); 294 private static native void nativeWriteStrongBinder(long nativePtr, IBinder val); 295 private static native long nativeWriteFileDescriptor(long nativePtr, FileDescriptor val); 296 297 private static native byte[] nativeCreateByteArray(long nativePtr); 298 private static native byte[] nativeReadBlob(long nativePtr); 299 @FastNative 300 private static native int nativeReadInt(long nativePtr); 301 @FastNative 302 private static native long nativeReadLong(long nativePtr); 303 @FastNative 304 private static native float nativeReadFloat(long nativePtr); 305 @FastNative 306 private static native double nativeReadDouble(long nativePtr); 307 private static native String nativeReadString(long nativePtr); 308 private static native IBinder nativeReadStrongBinder(long nativePtr); 309 private static native FileDescriptor nativeReadFileDescriptor(long nativePtr); 310 311 private static native long nativeCreate(); 312 private static native long nativeFreeBuffer(long nativePtr); 313 private static native void nativeDestroy(long nativePtr); 314 315 private static native byte[] nativeMarshall(long nativePtr); 316 private static native long nativeUnmarshall( 317 long nativePtr, byte[] data, int offset, int length); 318 private static native long nativeAppendFrom( 319 long thisNativePtr, long otherNativePtr, int offset, int length); 320 @FastNative 321 private static native boolean nativeHasFileDescriptors(long nativePtr); 322 private static native void nativeWriteInterfaceToken(long nativePtr, String interfaceName); 323 private static native void nativeEnforceInterface(long nativePtr, String interfaceName); 324 325 private static native long nativeGetBlobAshmemSize(long nativePtr); 326 327 public final static Parcelable.Creator<String> STRING_CREATOR 328 = new Parcelable.Creator<String>() { 329 public String createFromParcel(Parcel source) { 330 return source.readString(); 331 } 332 public String[] newArray(int size) { 333 return new String[size]; 334 } 335 }; 336 337 /** 338 * Retrieve a new Parcel object from the pool. 339 */ 340 public static Parcel obtain() { 341 final Parcel[] pool = sOwnedPool; 342 synchronized (pool) { 343 Parcel p; 344 for (int i=0; i<POOL_SIZE; i++) { 345 p = pool[i]; 346 if (p != null) { 347 pool[i] = null; 348 if (DEBUG_RECYCLE) { 349 p.mStack = new RuntimeException(); 350 } 351 return p; 352 } 353 } 354 } 355 return new Parcel(0); 356 } 357 358 /** 359 * Put a Parcel object back into the pool. You must not touch 360 * the object after this call. 361 */ 362 public final void recycle() { 363 if (DEBUG_RECYCLE) mStack = null; 364 freeBuffer(); 365 366 final Parcel[] pool; 367 if (mOwnsNativeParcelObject) { 368 pool = sOwnedPool; 369 } else { 370 mNativePtr = 0; 371 pool = sHolderPool; 372 } 373 374 synchronized (pool) { 375 for (int i=0; i<POOL_SIZE; i++) { 376 if (pool[i] == null) { 377 pool[i] = this; 378 return; 379 } 380 } 381 } 382 } 383 384 /** @hide */ 385 public static native long getGlobalAllocSize(); 386 387 /** @hide */ 388 public static native long getGlobalAllocCount(); 389 390 /** 391 * Returns the total amount of data contained in the parcel. 392 */ 393 public final int dataSize() { 394 return nativeDataSize(mNativePtr); 395 } 396 397 /** 398 * Returns the amount of data remaining to be read from the 399 * parcel. That is, {@link #dataSize}-{@link #dataPosition}. 400 */ 401 public final int dataAvail() { 402 return nativeDataAvail(mNativePtr); 403 } 404 405 /** 406 * Returns the current position in the parcel data. Never 407 * more than {@link #dataSize}. 408 */ 409 public final int dataPosition() { 410 return nativeDataPosition(mNativePtr); 411 } 412 413 /** 414 * Returns the total amount of space in the parcel. This is always 415 * >= {@link #dataSize}. The difference between it and dataSize() is the 416 * amount of room left until the parcel needs to re-allocate its 417 * data buffer. 418 */ 419 public final int dataCapacity() { 420 return nativeDataCapacity(mNativePtr); 421 } 422 423 /** 424 * Change the amount of data in the parcel. Can be either smaller or 425 * larger than the current size. If larger than the current capacity, 426 * more memory will be allocated. 427 * 428 * @param size The new number of bytes in the Parcel. 429 */ 430 public final void setDataSize(int size) { 431 updateNativeSize(nativeSetDataSize(mNativePtr, size)); 432 } 433 434 /** 435 * Move the current read/write position in the parcel. 436 * @param pos New offset in the parcel; must be between 0 and 437 * {@link #dataSize}. 438 */ 439 public final void setDataPosition(int pos) { 440 nativeSetDataPosition(mNativePtr, pos); 441 } 442 443 /** 444 * Change the capacity (current available space) of the parcel. 445 * 446 * @param size The new capacity of the parcel, in bytes. Can not be 447 * less than {@link #dataSize} -- that is, you can not drop existing data 448 * with this method. 449 */ 450 public final void setDataCapacity(int size) { 451 nativeSetDataCapacity(mNativePtr, size); 452 } 453 454 /** @hide */ 455 public final boolean pushAllowFds(boolean allowFds) { 456 return nativePushAllowFds(mNativePtr, allowFds); 457 } 458 459 /** @hide */ 460 public final void restoreAllowFds(boolean lastValue) { 461 nativeRestoreAllowFds(mNativePtr, lastValue); 462 } 463 464 /** 465 * Returns the raw bytes of the parcel. 466 * 467 * <p class="note">The data you retrieve here <strong>must not</strong> 468 * be placed in any kind of persistent storage (on local disk, across 469 * a network, etc). For that, you should use standard serialization 470 * or another kind of general serialization mechanism. The Parcel 471 * marshalled representation is highly optimized for local IPC, and as 472 * such does not attempt to maintain compatibility with data created 473 * in different versions of the platform. 474 */ 475 public final byte[] marshall() { 476 return nativeMarshall(mNativePtr); 477 } 478 479 /** 480 * Set the bytes in data to be the raw bytes of this Parcel. 481 */ 482 public final void unmarshall(byte[] data, int offset, int length) { 483 updateNativeSize(nativeUnmarshall(mNativePtr, data, offset, length)); 484 } 485 486 public final void appendFrom(Parcel parcel, int offset, int length) { 487 updateNativeSize(nativeAppendFrom(mNativePtr, parcel.mNativePtr, offset, length)); 488 } 489 490 /** 491 * Report whether the parcel contains any marshalled file descriptors. 492 */ 493 public final boolean hasFileDescriptors() { 494 return nativeHasFileDescriptors(mNativePtr); 495 } 496 497 /** 498 * Store or read an IBinder interface token in the parcel at the current 499 * {@link #dataPosition}. This is used to validate that the marshalled 500 * transaction is intended for the target interface. 501 */ 502 public final void writeInterfaceToken(String interfaceName) { 503 nativeWriteInterfaceToken(mNativePtr, interfaceName); 504 } 505 506 public final void enforceInterface(String interfaceName) { 507 nativeEnforceInterface(mNativePtr, interfaceName); 508 } 509 510 /** 511 * Write a byte array into the parcel at the current {@link #dataPosition}, 512 * growing {@link #dataCapacity} if needed. 513 * @param b Bytes to place into the parcel. 514 */ 515 public final void writeByteArray(byte[] b) { 516 writeByteArray(b, 0, (b != null) ? b.length : 0); 517 } 518 519 /** 520 * Write a byte array into the parcel at the current {@link #dataPosition}, 521 * growing {@link #dataCapacity} if needed. 522 * @param b Bytes to place into the parcel. 523 * @param offset Index of first byte to be written. 524 * @param len Number of bytes to write. 525 */ 526 public final void writeByteArray(byte[] b, int offset, int len) { 527 if (b == null) { 528 writeInt(-1); 529 return; 530 } 531 Arrays.checkOffsetAndCount(b.length, offset, len); 532 nativeWriteByteArray(mNativePtr, b, offset, len); 533 } 534 535 /** 536 * Write a blob of data into the parcel at the current {@link #dataPosition}, 537 * growing {@link #dataCapacity} if needed. 538 * @param b Bytes to place into the parcel. 539 * {@hide} 540 * {@SystemApi} 541 */ 542 public final void writeBlob(byte[] b) { 543 writeBlob(b, 0, (b != null) ? b.length : 0); 544 } 545 546 /** 547 * Write a blob of data into the parcel at the current {@link #dataPosition}, 548 * growing {@link #dataCapacity} if needed. 549 * @param b Bytes to place into the parcel. 550 * @param offset Index of first byte to be written. 551 * @param len Number of bytes to write. 552 * {@hide} 553 * {@SystemApi} 554 */ 555 public final void writeBlob(byte[] b, int offset, int len) { 556 if (b == null) { 557 writeInt(-1); 558 return; 559 } 560 Arrays.checkOffsetAndCount(b.length, offset, len); 561 nativeWriteBlob(mNativePtr, b, offset, len); 562 } 563 564 /** 565 * Write an integer value into the parcel at the current dataPosition(), 566 * growing dataCapacity() if needed. 567 */ 568 public final void writeInt(int val) { 569 nativeWriteInt(mNativePtr, val); 570 } 571 572 /** 573 * Write a long integer value into the parcel at the current dataPosition(), 574 * growing dataCapacity() if needed. 575 */ 576 public final void writeLong(long val) { 577 nativeWriteLong(mNativePtr, val); 578 } 579 580 /** 581 * Write a floating point value into the parcel at the current 582 * dataPosition(), growing dataCapacity() if needed. 583 */ 584 public final void writeFloat(float val) { 585 nativeWriteFloat(mNativePtr, val); 586 } 587 588 /** 589 * Write a double precision floating point value into the parcel at the 590 * current dataPosition(), growing dataCapacity() if needed. 591 */ 592 public final void writeDouble(double val) { 593 nativeWriteDouble(mNativePtr, val); 594 } 595 596 /** 597 * Write a string value into the parcel at the current dataPosition(), 598 * growing dataCapacity() if needed. 599 */ 600 public final void writeString(String val) { 601 nativeWriteString(mNativePtr, val); 602 } 603 604 /** 605 * Write a CharSequence value into the parcel at the current dataPosition(), 606 * growing dataCapacity() if needed. 607 * @hide 608 */ 609 public final void writeCharSequence(CharSequence val) { 610 TextUtils.writeToParcel(val, this, 0); 611 } 612 613 /** 614 * Write an object into the parcel at the current dataPosition(), 615 * growing dataCapacity() if needed. 616 */ 617 public final void writeStrongBinder(IBinder val) { 618 nativeWriteStrongBinder(mNativePtr, val); 619 } 620 621 /** 622 * Write an object into the parcel at the current dataPosition(), 623 * growing dataCapacity() if needed. 624 */ 625 public final void writeStrongInterface(IInterface val) { 626 writeStrongBinder(val == null ? null : val.asBinder()); 627 } 628 629 /** 630 * Write a FileDescriptor into the parcel at the current dataPosition(), 631 * growing dataCapacity() if needed. 632 * 633 * <p class="caution">The file descriptor will not be closed, which may 634 * result in file descriptor leaks when objects are returned from Binder 635 * calls. Use {@link ParcelFileDescriptor#writeToParcel} instead, which 636 * accepts contextual flags and will close the original file descriptor 637 * if {@link Parcelable#PARCELABLE_WRITE_RETURN_VALUE} is set.</p> 638 */ 639 public final void writeFileDescriptor(FileDescriptor val) { 640 updateNativeSize(nativeWriteFileDescriptor(mNativePtr, val)); 641 } 642 643 private void updateNativeSize(long newNativeSize) { 644 if (mOwnsNativeParcelObject) { 645 if (newNativeSize > Integer.MAX_VALUE) { 646 newNativeSize = Integer.MAX_VALUE; 647 } 648 if (newNativeSize != mNativeSize) { 649 int delta = (int) (newNativeSize - mNativeSize); 650 if (delta > 0) { 651 VMRuntime.getRuntime().registerNativeAllocation(delta); 652 } else { 653 VMRuntime.getRuntime().registerNativeFree(-delta); 654 } 655 mNativeSize = newNativeSize; 656 } 657 } 658 } 659 660 /** 661 * {@hide} 662 * This will be the new name for writeFileDescriptor, for consistency. 663 **/ 664 public final void writeRawFileDescriptor(FileDescriptor val) { 665 nativeWriteFileDescriptor(mNativePtr, val); 666 } 667 668 /** 669 * {@hide} 670 * Write an array of FileDescriptor objects into the Parcel. 671 * 672 * @param value The array of objects to be written. 673 */ 674 public final void writeRawFileDescriptorArray(FileDescriptor[] value) { 675 if (value != null) { 676 int N = value.length; 677 writeInt(N); 678 for (int i=0; i<N; i++) { 679 writeRawFileDescriptor(value[i]); 680 } 681 } else { 682 writeInt(-1); 683 } 684 } 685 686 /** 687 * Write a byte value into the parcel at the current dataPosition(), 688 * growing dataCapacity() if needed. 689 */ 690 public final void writeByte(byte val) { 691 writeInt(val); 692 } 693 694 /** 695 * Please use {@link #writeBundle} instead. Flattens a Map into the parcel 696 * at the current dataPosition(), 697 * growing dataCapacity() if needed. The Map keys must be String objects. 698 * The Map values are written using {@link #writeValue} and must follow 699 * the specification there. 700 * 701 * <p>It is strongly recommended to use {@link #writeBundle} instead of 702 * this method, since the Bundle class provides a type-safe API that 703 * allows you to avoid mysterious type errors at the point of marshalling. 704 */ 705 public final void writeMap(Map val) { 706 writeMapInternal((Map<String, Object>) val); 707 } 708 709 /** 710 * Flatten a Map into the parcel at the current dataPosition(), 711 * growing dataCapacity() if needed. The Map keys must be String objects. 712 */ 713 /* package */ void writeMapInternal(Map<String,Object> val) { 714 if (val == null) { 715 writeInt(-1); 716 return; 717 } 718 Set<Map.Entry<String,Object>> entries = val.entrySet(); 719 writeInt(entries.size()); 720 for (Map.Entry<String,Object> e : entries) { 721 writeValue(e.getKey()); 722 writeValue(e.getValue()); 723 } 724 } 725 726 /** 727 * Flatten an ArrayMap into the parcel at the current dataPosition(), 728 * growing dataCapacity() if needed. The Map keys must be String objects. 729 */ 730 /* package */ void writeArrayMapInternal(ArrayMap<String, Object> val) { 731 if (val == null) { 732 writeInt(-1); 733 return; 734 } 735 // Keep the format of this Parcel in sync with writeToParcelInner() in 736 // frameworks/native/libs/binder/PersistableBundle.cpp. 737 final int N = val.size(); 738 writeInt(N); 739 if (DEBUG_ARRAY_MAP) { 740 RuntimeException here = new RuntimeException("here"); 741 here.fillInStackTrace(); 742 Log.d(TAG, "Writing " + N + " ArrayMap entries", here); 743 } 744 int startPos; 745 for (int i=0; i<N; i++) { 746 if (DEBUG_ARRAY_MAP) startPos = dataPosition(); 747 writeString(val.keyAt(i)); 748 writeValue(val.valueAt(i)); 749 if (DEBUG_ARRAY_MAP) Log.d(TAG, " Write #" + i + " " 750 + (dataPosition()-startPos) + " bytes: key=0x" 751 + Integer.toHexString(val.keyAt(i) != null ? val.keyAt(i).hashCode() : 0) 752 + " " + val.keyAt(i)); 753 } 754 } 755 756 /** 757 * @hide For testing only. 758 */ 759 public void writeArrayMap(ArrayMap<String, Object> val) { 760 writeArrayMapInternal(val); 761 } 762 763 /** 764 * Write an array set to the parcel. 765 * 766 * @param val The array set to write. 767 * 768 * @hide 769 */ 770 public void writeArraySet(@Nullable ArraySet<? extends Object> val) { 771 final int size = (val != null) ? val.size() : -1; 772 writeInt(size); 773 for (int i = 0; i < size; i++) { 774 writeValue(val.valueAt(i)); 775 } 776 } 777 778 /** 779 * Flatten a Bundle into the parcel at the current dataPosition(), 780 * growing dataCapacity() if needed. 781 */ 782 public final void writeBundle(Bundle val) { 783 if (val == null) { 784 writeInt(-1); 785 return; 786 } 787 788 val.writeToParcel(this, 0); 789 } 790 791 /** 792 * Flatten a PersistableBundle into the parcel at the current dataPosition(), 793 * growing dataCapacity() if needed. 794 */ 795 public final void writePersistableBundle(PersistableBundle val) { 796 if (val == null) { 797 writeInt(-1); 798 return; 799 } 800 801 val.writeToParcel(this, 0); 802 } 803 804 /** 805 * Flatten a Size into the parcel at the current dataPosition(), 806 * growing dataCapacity() if needed. 807 */ 808 public final void writeSize(Size val) { 809 writeInt(val.getWidth()); 810 writeInt(val.getHeight()); 811 } 812 813 /** 814 * Flatten a SizeF into the parcel at the current dataPosition(), 815 * growing dataCapacity() if needed. 816 */ 817 public final void writeSizeF(SizeF val) { 818 writeFloat(val.getWidth()); 819 writeFloat(val.getHeight()); 820 } 821 822 /** 823 * Flatten a List into the parcel at the current dataPosition(), growing 824 * dataCapacity() if needed. The List values are written using 825 * {@link #writeValue} and must follow the specification there. 826 */ 827 public final void writeList(List val) { 828 if (val == null) { 829 writeInt(-1); 830 return; 831 } 832 int N = val.size(); 833 int i=0; 834 writeInt(N); 835 while (i < N) { 836 writeValue(val.get(i)); 837 i++; 838 } 839 } 840 841 /** 842 * Flatten an Object array into the parcel at the current dataPosition(), 843 * growing dataCapacity() if needed. The array values are written using 844 * {@link #writeValue} and must follow the specification there. 845 */ 846 public final void writeArray(Object[] val) { 847 if (val == null) { 848 writeInt(-1); 849 return; 850 } 851 int N = val.length; 852 int i=0; 853 writeInt(N); 854 while (i < N) { 855 writeValue(val[i]); 856 i++; 857 } 858 } 859 860 /** 861 * Flatten a generic SparseArray into the parcel at the current 862 * dataPosition(), growing dataCapacity() if needed. The SparseArray 863 * values are written using {@link #writeValue} and must follow the 864 * specification there. 865 */ 866 public final void writeSparseArray(SparseArray<Object> val) { 867 if (val == null) { 868 writeInt(-1); 869 return; 870 } 871 int N = val.size(); 872 writeInt(N); 873 int i=0; 874 while (i < N) { 875 writeInt(val.keyAt(i)); 876 writeValue(val.valueAt(i)); 877 i++; 878 } 879 } 880 881 public final void writeSparseBooleanArray(SparseBooleanArray val) { 882 if (val == null) { 883 writeInt(-1); 884 return; 885 } 886 int N = val.size(); 887 writeInt(N); 888 int i=0; 889 while (i < N) { 890 writeInt(val.keyAt(i)); 891 writeByte((byte)(val.valueAt(i) ? 1 : 0)); 892 i++; 893 } 894 } 895 896 public final void writeSparseIntArray(SparseIntArray val) { 897 if (val == null) { 898 writeInt(-1); 899 return; 900 } 901 int N = val.size(); 902 writeInt(N); 903 int i=0; 904 while (i < N) { 905 writeInt(val.keyAt(i)); 906 writeInt(val.valueAt(i)); 907 i++; 908 } 909 } 910 911 public final void writeBooleanArray(boolean[] val) { 912 if (val != null) { 913 int N = val.length; 914 writeInt(N); 915 for (int i=0; i<N; i++) { 916 writeInt(val[i] ? 1 : 0); 917 } 918 } else { 919 writeInt(-1); 920 } 921 } 922 923 public final boolean[] createBooleanArray() { 924 int N = readInt(); 925 // >>2 as a fast divide-by-4 works in the create*Array() functions 926 // because dataAvail() will never return a negative number. 4 is 927 // the size of a stored boolean in the stream. 928 if (N >= 0 && N <= (dataAvail() >> 2)) { 929 boolean[] val = new boolean[N]; 930 for (int i=0; i<N; i++) { 931 val[i] = readInt() != 0; 932 } 933 return val; 934 } else { 935 return null; 936 } 937 } 938 939 public final void readBooleanArray(boolean[] val) { 940 int N = readInt(); 941 if (N == val.length) { 942 for (int i=0; i<N; i++) { 943 val[i] = readInt() != 0; 944 } 945 } else { 946 throw new RuntimeException("bad array lengths"); 947 } 948 } 949 950 public final void writeCharArray(char[] val) { 951 if (val != null) { 952 int N = val.length; 953 writeInt(N); 954 for (int i=0; i<N; i++) { 955 writeInt((int)val[i]); 956 } 957 } else { 958 writeInt(-1); 959 } 960 } 961 962 public final char[] createCharArray() { 963 int N = readInt(); 964 if (N >= 0 && N <= (dataAvail() >> 2)) { 965 char[] val = new char[N]; 966 for (int i=0; i<N; i++) { 967 val[i] = (char)readInt(); 968 } 969 return val; 970 } else { 971 return null; 972 } 973 } 974 975 public final void readCharArray(char[] val) { 976 int N = readInt(); 977 if (N == val.length) { 978 for (int i=0; i<N; i++) { 979 val[i] = (char)readInt(); 980 } 981 } else { 982 throw new RuntimeException("bad array lengths"); 983 } 984 } 985 986 public final void writeIntArray(int[] val) { 987 if (val != null) { 988 int N = val.length; 989 writeInt(N); 990 for (int i=0; i<N; i++) { 991 writeInt(val[i]); 992 } 993 } else { 994 writeInt(-1); 995 } 996 } 997 998 public final int[] createIntArray() { 999 int N = readInt(); 1000 if (N >= 0 && N <= (dataAvail() >> 2)) { 1001 int[] val = new int[N]; 1002 for (int i=0; i<N; i++) { 1003 val[i] = readInt(); 1004 } 1005 return val; 1006 } else { 1007 return null; 1008 } 1009 } 1010 1011 public final void readIntArray(int[] val) { 1012 int N = readInt(); 1013 if (N == val.length) { 1014 for (int i=0; i<N; i++) { 1015 val[i] = readInt(); 1016 } 1017 } else { 1018 throw new RuntimeException("bad array lengths"); 1019 } 1020 } 1021 1022 public final void writeLongArray(long[] val) { 1023 if (val != null) { 1024 int N = val.length; 1025 writeInt(N); 1026 for (int i=0; i<N; i++) { 1027 writeLong(val[i]); 1028 } 1029 } else { 1030 writeInt(-1); 1031 } 1032 } 1033 1034 public final long[] createLongArray() { 1035 int N = readInt(); 1036 // >>3 because stored longs are 64 bits 1037 if (N >= 0 && N <= (dataAvail() >> 3)) { 1038 long[] val = new long[N]; 1039 for (int i=0; i<N; i++) { 1040 val[i] = readLong(); 1041 } 1042 return val; 1043 } else { 1044 return null; 1045 } 1046 } 1047 1048 public final void readLongArray(long[] val) { 1049 int N = readInt(); 1050 if (N == val.length) { 1051 for (int i=0; i<N; i++) { 1052 val[i] = readLong(); 1053 } 1054 } else { 1055 throw new RuntimeException("bad array lengths"); 1056 } 1057 } 1058 1059 public final void writeFloatArray(float[] val) { 1060 if (val != null) { 1061 int N = val.length; 1062 writeInt(N); 1063 for (int i=0; i<N; i++) { 1064 writeFloat(val[i]); 1065 } 1066 } else { 1067 writeInt(-1); 1068 } 1069 } 1070 1071 public final float[] createFloatArray() { 1072 int N = readInt(); 1073 // >>2 because stored floats are 4 bytes 1074 if (N >= 0 && N <= (dataAvail() >> 2)) { 1075 float[] val = new float[N]; 1076 for (int i=0; i<N; i++) { 1077 val[i] = readFloat(); 1078 } 1079 return val; 1080 } else { 1081 return null; 1082 } 1083 } 1084 1085 public final void readFloatArray(float[] val) { 1086 int N = readInt(); 1087 if (N == val.length) { 1088 for (int i=0; i<N; i++) { 1089 val[i] = readFloat(); 1090 } 1091 } else { 1092 throw new RuntimeException("bad array lengths"); 1093 } 1094 } 1095 1096 public final void writeDoubleArray(double[] val) { 1097 if (val != null) { 1098 int N = val.length; 1099 writeInt(N); 1100 for (int i=0; i<N; i++) { 1101 writeDouble(val[i]); 1102 } 1103 } else { 1104 writeInt(-1); 1105 } 1106 } 1107 1108 public final double[] createDoubleArray() { 1109 int N = readInt(); 1110 // >>3 because stored doubles are 8 bytes 1111 if (N >= 0 && N <= (dataAvail() >> 3)) { 1112 double[] val = new double[N]; 1113 for (int i=0; i<N; i++) { 1114 val[i] = readDouble(); 1115 } 1116 return val; 1117 } else { 1118 return null; 1119 } 1120 } 1121 1122 public final void readDoubleArray(double[] val) { 1123 int N = readInt(); 1124 if (N == val.length) { 1125 for (int i=0; i<N; i++) { 1126 val[i] = readDouble(); 1127 } 1128 } else { 1129 throw new RuntimeException("bad array lengths"); 1130 } 1131 } 1132 1133 public final void writeStringArray(String[] val) { 1134 if (val != null) { 1135 int N = val.length; 1136 writeInt(N); 1137 for (int i=0; i<N; i++) { 1138 writeString(val[i]); 1139 } 1140 } else { 1141 writeInt(-1); 1142 } 1143 } 1144 1145 public final String[] createStringArray() { 1146 int N = readInt(); 1147 if (N >= 0) { 1148 String[] val = new String[N]; 1149 for (int i=0; i<N; i++) { 1150 val[i] = readString(); 1151 } 1152 return val; 1153 } else { 1154 return null; 1155 } 1156 } 1157 1158 public final void readStringArray(String[] val) { 1159 int N = readInt(); 1160 if (N == val.length) { 1161 for (int i=0; i<N; i++) { 1162 val[i] = readString(); 1163 } 1164 } else { 1165 throw new RuntimeException("bad array lengths"); 1166 } 1167 } 1168 1169 public final void writeBinderArray(IBinder[] val) { 1170 if (val != null) { 1171 int N = val.length; 1172 writeInt(N); 1173 for (int i=0; i<N; i++) { 1174 writeStrongBinder(val[i]); 1175 } 1176 } else { 1177 writeInt(-1); 1178 } 1179 } 1180 1181 /** 1182 * @hide 1183 */ 1184 public final void writeCharSequenceArray(CharSequence[] val) { 1185 if (val != null) { 1186 int N = val.length; 1187 writeInt(N); 1188 for (int i=0; i<N; i++) { 1189 writeCharSequence(val[i]); 1190 } 1191 } else { 1192 writeInt(-1); 1193 } 1194 } 1195 1196 /** 1197 * @hide 1198 */ 1199 public final void writeCharSequenceList(ArrayList<CharSequence> val) { 1200 if (val != null) { 1201 int N = val.size(); 1202 writeInt(N); 1203 for (int i=0; i<N; i++) { 1204 writeCharSequence(val.get(i)); 1205 } 1206 } else { 1207 writeInt(-1); 1208 } 1209 } 1210 1211 public final IBinder[] createBinderArray() { 1212 int N = readInt(); 1213 if (N >= 0) { 1214 IBinder[] val = new IBinder[N]; 1215 for (int i=0; i<N; i++) { 1216 val[i] = readStrongBinder(); 1217 } 1218 return val; 1219 } else { 1220 return null; 1221 } 1222 } 1223 1224 public final void readBinderArray(IBinder[] val) { 1225 int N = readInt(); 1226 if (N == val.length) { 1227 for (int i=0; i<N; i++) { 1228 val[i] = readStrongBinder(); 1229 } 1230 } else { 1231 throw new RuntimeException("bad array lengths"); 1232 } 1233 } 1234 1235 /** 1236 * Flatten a List containing a particular object type into the parcel, at 1237 * the current dataPosition() and growing dataCapacity() if needed. The 1238 * type of the objects in the list must be one that implements Parcelable. 1239 * Unlike the generic writeList() method, however, only the raw data of the 1240 * objects is written and not their type, so you must use the corresponding 1241 * readTypedList() to unmarshall them. 1242 * 1243 * @param val The list of objects to be written. 1244 * 1245 * @see #createTypedArrayList 1246 * @see #readTypedList 1247 * @see Parcelable 1248 */ 1249 public final <T extends Parcelable> void writeTypedList(List<T> val) { 1250 if (val == null) { 1251 writeInt(-1); 1252 return; 1253 } 1254 int N = val.size(); 1255 int i=0; 1256 writeInt(N); 1257 while (i < N) { 1258 T item = val.get(i); 1259 if (item != null) { 1260 writeInt(1); 1261 item.writeToParcel(this, 0); 1262 } else { 1263 writeInt(0); 1264 } 1265 i++; 1266 } 1267 } 1268 1269 /** 1270 * Flatten a List containing String objects into the parcel, at 1271 * the current dataPosition() and growing dataCapacity() if needed. They 1272 * can later be retrieved with {@link #createStringArrayList} or 1273 * {@link #readStringList}. 1274 * 1275 * @param val The list of strings to be written. 1276 * 1277 * @see #createStringArrayList 1278 * @see #readStringList 1279 */ 1280 public final void writeStringList(List<String> val) { 1281 if (val == null) { 1282 writeInt(-1); 1283 return; 1284 } 1285 int N = val.size(); 1286 int i=0; 1287 writeInt(N); 1288 while (i < N) { 1289 writeString(val.get(i)); 1290 i++; 1291 } 1292 } 1293 1294 /** 1295 * Flatten a List containing IBinder objects into the parcel, at 1296 * the current dataPosition() and growing dataCapacity() if needed. They 1297 * can later be retrieved with {@link #createBinderArrayList} or 1298 * {@link #readBinderList}. 1299 * 1300 * @param val The list of strings to be written. 1301 * 1302 * @see #createBinderArrayList 1303 * @see #readBinderList 1304 */ 1305 public final void writeBinderList(List<IBinder> val) { 1306 if (val == null) { 1307 writeInt(-1); 1308 return; 1309 } 1310 int N = val.size(); 1311 int i=0; 1312 writeInt(N); 1313 while (i < N) { 1314 writeStrongBinder(val.get(i)); 1315 i++; 1316 } 1317 } 1318 1319 /** 1320 * Flatten a {@code List} containing arbitrary {@code Parcelable} objects into this parcel 1321 * at the current position. They can later be retrieved using 1322 * {@link #readParcelableList(List, ClassLoader)} if required. 1323 * 1324 * @see #readParcelableList(List, ClassLoader) 1325 * @hide 1326 */ 1327 public final <T extends Parcelable> void writeParcelableList(List<T> val, int flags) { 1328 if (val == null) { 1329 writeInt(-1); 1330 return; 1331 } 1332 1333 int N = val.size(); 1334 int i=0; 1335 writeInt(N); 1336 while (i < N) { 1337 writeParcelable(val.get(i), flags); 1338 i++; 1339 } 1340 } 1341 1342 /** 1343 * Flatten a homogeneous array containing a particular object type into 1344 * the parcel, at 1345 * the current dataPosition() and growing dataCapacity() if needed. The 1346 * type of the objects in the array must be one that implements Parcelable. 1347 * Unlike the {@link #writeParcelableArray} method, however, only the 1348 * raw data of the objects is written and not their type, so you must use 1349 * {@link #readTypedArray} with the correct corresponding 1350 * {@link Parcelable.Creator} implementation to unmarshall them. 1351 * 1352 * @param val The array of objects to be written. 1353 * @param parcelableFlags Contextual flags as per 1354 * {@link Parcelable#writeToParcel(Parcel, int) Parcelable.writeToParcel()}. 1355 * 1356 * @see #readTypedArray 1357 * @see #writeParcelableArray 1358 * @see Parcelable.Creator 1359 */ 1360 public final <T extends Parcelable> void writeTypedArray(T[] val, 1361 int parcelableFlags) { 1362 if (val != null) { 1363 int N = val.length; 1364 writeInt(N); 1365 for (int i = 0; i < N; i++) { 1366 T item = val[i]; 1367 if (item != null) { 1368 writeInt(1); 1369 item.writeToParcel(this, parcelableFlags); 1370 } else { 1371 writeInt(0); 1372 } 1373 } 1374 } else { 1375 writeInt(-1); 1376 } 1377 } 1378 1379 /** 1380 * Write a uniform (all items are null or the same class) array list of 1381 * parcelables. 1382 * 1383 * @param list The list to write. 1384 * 1385 * @hide 1386 */ 1387 public final <T extends Parcelable> void writeTypedArrayList(@Nullable ArrayList<T> list, 1388 int parcelableFlags) { 1389 if (list != null) { 1390 int N = list.size(); 1391 writeInt(N); 1392 boolean wroteCreator = false; 1393 for (int i = 0; i < N; i++) { 1394 T item = list.get(i); 1395 if (item != null) { 1396 writeInt(1); 1397 if (!wroteCreator) { 1398 writeParcelableCreator(item); 1399 wroteCreator = true; 1400 } 1401 item.writeToParcel(this, parcelableFlags); 1402 } else { 1403 writeInt(0); 1404 } 1405 } 1406 } else { 1407 writeInt(-1); 1408 } 1409 } 1410 1411 /** 1412 * Reads a uniform (all items are null or the same class) array list of 1413 * parcelables. 1414 * 1415 * @return The list or null. 1416 * 1417 * @hide 1418 */ 1419 public final @Nullable <T> ArrayList<T> readTypedArrayList(@Nullable ClassLoader loader) { 1420 int N = readInt(); 1421 if (N <= 0) { 1422 return null; 1423 } 1424 Parcelable.Creator<?> creator = null; 1425 ArrayList<T> result = new ArrayList<T>(N); 1426 for (int i = 0; i < N; i++) { 1427 if (readInt() != 0) { 1428 if (creator == null) { 1429 creator = readParcelableCreator(loader); 1430 if (creator == null) { 1431 return null; 1432 } 1433 } 1434 final T parcelable; 1435 if (creator instanceof Parcelable.ClassLoaderCreator<?>) { 1436 Parcelable.ClassLoaderCreator<?> classLoaderCreator = 1437 (Parcelable.ClassLoaderCreator<?>) creator; 1438 parcelable = (T) classLoaderCreator.createFromParcel(this, loader); 1439 } else { 1440 parcelable = (T) creator.createFromParcel(this); 1441 } 1442 result.add(parcelable); 1443 } else { 1444 result.add(null); 1445 } 1446 } 1447 return result; 1448 } 1449 1450 /** 1451 * Write a uniform (all items are null or the same class) array set of 1452 * parcelables. 1453 * 1454 * @param set The set to write. 1455 * 1456 * @hide 1457 */ 1458 public final <T extends Parcelable> void writeTypedArraySet(@Nullable ArraySet<T> set, 1459 int parcelableFlags) { 1460 if (set != null) { 1461 int N = set.size(); 1462 writeInt(N); 1463 boolean wroteCreator = false; 1464 for (int i = 0; i < N; i++) { 1465 T item = set.valueAt(i); 1466 if (item != null) { 1467 writeInt(1); 1468 if (!wroteCreator) { 1469 writeParcelableCreator(item); 1470 wroteCreator = true; 1471 } 1472 item.writeToParcel(this, parcelableFlags); 1473 } else { 1474 writeInt(0); 1475 } 1476 } 1477 } else { 1478 writeInt(-1); 1479 } 1480 } 1481 1482 /** 1483 * Reads a uniform (all items are null or the same class) array set of 1484 * parcelables. 1485 * 1486 * @return The set or null. 1487 * 1488 * @hide 1489 */ 1490 public final @Nullable <T> ArraySet<T> readTypedArraySet(@Nullable ClassLoader loader) { 1491 int N = readInt(); 1492 if (N <= 0) { 1493 return null; 1494 } 1495 Parcelable.Creator<?> creator = null; 1496 ArraySet<T> result = new ArraySet<T>(N); 1497 for (int i = 0; i < N; i++) { 1498 T parcelable = null; 1499 if (readInt() != 0) { 1500 if (creator == null) { 1501 creator = readParcelableCreator(loader); 1502 if (creator == null) { 1503 return null; 1504 } 1505 } 1506 if (creator instanceof Parcelable.ClassLoaderCreator<?>) { 1507 Parcelable.ClassLoaderCreator<?> classLoaderCreator = 1508 (Parcelable.ClassLoaderCreator<?>) creator; 1509 parcelable = (T) classLoaderCreator.createFromParcel(this, loader); 1510 } else { 1511 parcelable = (T) creator.createFromParcel(this); 1512 } 1513 } 1514 result.append(parcelable); 1515 } 1516 return result; 1517 } 1518 1519 /** 1520 * Flatten the Parcelable object into the parcel. 1521 * 1522 * @param val The Parcelable object to be written. 1523 * @param parcelableFlags Contextual flags as per 1524 * {@link Parcelable#writeToParcel(Parcel, int) Parcelable.writeToParcel()}. 1525 * 1526 * @see #readTypedObject 1527 */ 1528 public final <T extends Parcelable> void writeTypedObject(T val, int parcelableFlags) { 1529 if (val != null) { 1530 writeInt(1); 1531 val.writeToParcel(this, parcelableFlags); 1532 } else { 1533 writeInt(0); 1534 } 1535 } 1536 1537 /** 1538 * Flatten a generic object in to a parcel. The given Object value may 1539 * currently be one of the following types: 1540 * 1541 * <ul> 1542 * <li> null 1543 * <li> String 1544 * <li> Byte 1545 * <li> Short 1546 * <li> Integer 1547 * <li> Long 1548 * <li> Float 1549 * <li> Double 1550 * <li> Boolean 1551 * <li> String[] 1552 * <li> boolean[] 1553 * <li> byte[] 1554 * <li> int[] 1555 * <li> long[] 1556 * <li> Object[] (supporting objects of the same type defined here). 1557 * <li> {@link Bundle} 1558 * <li> Map (as supported by {@link #writeMap}). 1559 * <li> Any object that implements the {@link Parcelable} protocol. 1560 * <li> Parcelable[] 1561 * <li> CharSequence (as supported by {@link TextUtils#writeToParcel}). 1562 * <li> List (as supported by {@link #writeList}). 1563 * <li> {@link SparseArray} (as supported by {@link #writeSparseArray(SparseArray)}). 1564 * <li> {@link IBinder} 1565 * <li> Any object that implements Serializable (but see 1566 * {@link #writeSerializable} for caveats). Note that all of the 1567 * previous types have relatively efficient implementations for 1568 * writing to a Parcel; having to rely on the generic serialization 1569 * approach is much less efficient and should be avoided whenever 1570 * possible. 1571 * </ul> 1572 * 1573 * <p class="caution">{@link Parcelable} objects are written with 1574 * {@link Parcelable#writeToParcel} using contextual flags of 0. When 1575 * serializing objects containing {@link ParcelFileDescriptor}s, 1576 * this may result in file descriptor leaks when they are returned from 1577 * Binder calls (where {@link Parcelable#PARCELABLE_WRITE_RETURN_VALUE} 1578 * should be used).</p> 1579 */ 1580 public final void writeValue(Object v) { 1581 if (v == null) { 1582 writeInt(VAL_NULL); 1583 } else if (v instanceof String) { 1584 writeInt(VAL_STRING); 1585 writeString((String) v); 1586 } else if (v instanceof Integer) { 1587 writeInt(VAL_INTEGER); 1588 writeInt((Integer) v); 1589 } else if (v instanceof Map) { 1590 writeInt(VAL_MAP); 1591 writeMap((Map) v); 1592 } else if (v instanceof Bundle) { 1593 // Must be before Parcelable 1594 writeInt(VAL_BUNDLE); 1595 writeBundle((Bundle) v); 1596 } else if (v instanceof PersistableBundle) { 1597 writeInt(VAL_PERSISTABLEBUNDLE); 1598 writePersistableBundle((PersistableBundle) v); 1599 } else if (v instanceof Parcelable) { 1600 // IMPOTANT: cases for classes that implement Parcelable must 1601 // come before the Parcelable case, so that their specific VAL_* 1602 // types will be written. 1603 writeInt(VAL_PARCELABLE); 1604 writeParcelable((Parcelable) v, 0); 1605 } else if (v instanceof Short) { 1606 writeInt(VAL_SHORT); 1607 writeInt(((Short) v).intValue()); 1608 } else if (v instanceof Long) { 1609 writeInt(VAL_LONG); 1610 writeLong((Long) v); 1611 } else if (v instanceof Float) { 1612 writeInt(VAL_FLOAT); 1613 writeFloat((Float) v); 1614 } else if (v instanceof Double) { 1615 writeInt(VAL_DOUBLE); 1616 writeDouble((Double) v); 1617 } else if (v instanceof Boolean) { 1618 writeInt(VAL_BOOLEAN); 1619 writeInt((Boolean) v ? 1 : 0); 1620 } else if (v instanceof CharSequence) { 1621 // Must be after String 1622 writeInt(VAL_CHARSEQUENCE); 1623 writeCharSequence((CharSequence) v); 1624 } else if (v instanceof List) { 1625 writeInt(VAL_LIST); 1626 writeList((List) v); 1627 } else if (v instanceof SparseArray) { 1628 writeInt(VAL_SPARSEARRAY); 1629 writeSparseArray((SparseArray) v); 1630 } else if (v instanceof boolean[]) { 1631 writeInt(VAL_BOOLEANARRAY); 1632 writeBooleanArray((boolean[]) v); 1633 } else if (v instanceof byte[]) { 1634 writeInt(VAL_BYTEARRAY); 1635 writeByteArray((byte[]) v); 1636 } else if (v instanceof String[]) { 1637 writeInt(VAL_STRINGARRAY); 1638 writeStringArray((String[]) v); 1639 } else if (v instanceof CharSequence[]) { 1640 // Must be after String[] and before Object[] 1641 writeInt(VAL_CHARSEQUENCEARRAY); 1642 writeCharSequenceArray((CharSequence[]) v); 1643 } else if (v instanceof IBinder) { 1644 writeInt(VAL_IBINDER); 1645 writeStrongBinder((IBinder) v); 1646 } else if (v instanceof Parcelable[]) { 1647 writeInt(VAL_PARCELABLEARRAY); 1648 writeParcelableArray((Parcelable[]) v, 0); 1649 } else if (v instanceof int[]) { 1650 writeInt(VAL_INTARRAY); 1651 writeIntArray((int[]) v); 1652 } else if (v instanceof long[]) { 1653 writeInt(VAL_LONGARRAY); 1654 writeLongArray((long[]) v); 1655 } else if (v instanceof Byte) { 1656 writeInt(VAL_BYTE); 1657 writeInt((Byte) v); 1658 } else if (v instanceof Size) { 1659 writeInt(VAL_SIZE); 1660 writeSize((Size) v); 1661 } else if (v instanceof SizeF) { 1662 writeInt(VAL_SIZEF); 1663 writeSizeF((SizeF) v); 1664 } else if (v instanceof double[]) { 1665 writeInt(VAL_DOUBLEARRAY); 1666 writeDoubleArray((double[]) v); 1667 } else { 1668 Class<?> clazz = v.getClass(); 1669 if (clazz.isArray() && clazz.getComponentType() == Object.class) { 1670 // Only pure Object[] are written here, Other arrays of non-primitive types are 1671 // handled by serialization as this does not record the component type. 1672 writeInt(VAL_OBJECTARRAY); 1673 writeArray((Object[]) v); 1674 } else if (v instanceof Serializable) { 1675 // Must be last 1676 writeInt(VAL_SERIALIZABLE); 1677 writeSerializable((Serializable) v); 1678 } else { 1679 throw new RuntimeException("Parcel: unable to marshal value " + v); 1680 } 1681 } 1682 } 1683 1684 /** 1685 * Flatten the name of the class of the Parcelable and its contents 1686 * into the parcel. 1687 * 1688 * @param p The Parcelable object to be written. 1689 * @param parcelableFlags Contextual flags as per 1690 * {@link Parcelable#writeToParcel(Parcel, int) Parcelable.writeToParcel()}. 1691 */ 1692 public final void writeParcelable(Parcelable p, int parcelableFlags) { 1693 if (p == null) { 1694 writeString(null); 1695 return; 1696 } 1697 writeParcelableCreator(p); 1698 p.writeToParcel(this, parcelableFlags); 1699 } 1700 1701 /** @hide */ 1702 public final void writeParcelableCreator(Parcelable p) { 1703 String name = p.getClass().getName(); 1704 writeString(name); 1705 } 1706 1707 /** 1708 * Write a generic serializable object in to a Parcel. It is strongly 1709 * recommended that this method be avoided, since the serialization 1710 * overhead is extremely large, and this approach will be much slower than 1711 * using the other approaches to writing data in to a Parcel. 1712 */ 1713 public final void writeSerializable(Serializable s) { 1714 if (s == null) { 1715 writeString(null); 1716 return; 1717 } 1718 String name = s.getClass().getName(); 1719 writeString(name); 1720 1721 ByteArrayOutputStream baos = new ByteArrayOutputStream(); 1722 try { 1723 ObjectOutputStream oos = new ObjectOutputStream(baos); 1724 oos.writeObject(s); 1725 oos.close(); 1726 1727 writeByteArray(baos.toByteArray()); 1728 } catch (IOException ioe) { 1729 throw new RuntimeException("Parcelable encountered " + 1730 "IOException writing serializable object (name = " + name + 1731 ")", ioe); 1732 } 1733 } 1734 1735 /** 1736 * Special function for writing an exception result at the header of 1737 * a parcel, to be used when returning an exception from a transaction. 1738 * Note that this currently only supports a few exception types; any other 1739 * exception will be re-thrown by this function as a RuntimeException 1740 * (to be caught by the system's last-resort exception handling when 1741 * dispatching a transaction). 1742 * 1743 * <p>The supported exception types are: 1744 * <ul> 1745 * <li>{@link BadParcelableException} 1746 * <li>{@link IllegalArgumentException} 1747 * <li>{@link IllegalStateException} 1748 * <li>{@link NullPointerException} 1749 * <li>{@link SecurityException} 1750 * <li>{@link NetworkOnMainThreadException} 1751 * </ul> 1752 * 1753 * @param e The Exception to be written. 1754 * 1755 * @see #writeNoException 1756 * @see #readException 1757 */ 1758 public final void writeException(Exception e) { 1759 int code = 0; 1760 if (e instanceof Parcelable 1761 && (e.getClass().getClassLoader() == Parcelable.class.getClassLoader())) { 1762 // We only send Parcelable exceptions that are in the 1763 // BootClassLoader to ensure that the receiver can unpack them 1764 code = EX_PARCELABLE; 1765 } else if (e instanceof SecurityException) { 1766 code = EX_SECURITY; 1767 } else if (e instanceof BadParcelableException) { 1768 code = EX_BAD_PARCELABLE; 1769 } else if (e instanceof IllegalArgumentException) { 1770 code = EX_ILLEGAL_ARGUMENT; 1771 } else if (e instanceof NullPointerException) { 1772 code = EX_NULL_POINTER; 1773 } else if (e instanceof IllegalStateException) { 1774 code = EX_ILLEGAL_STATE; 1775 } else if (e instanceof NetworkOnMainThreadException) { 1776 code = EX_NETWORK_MAIN_THREAD; 1777 } else if (e instanceof UnsupportedOperationException) { 1778 code = EX_UNSUPPORTED_OPERATION; 1779 } else if (e instanceof ServiceSpecificException) { 1780 code = EX_SERVICE_SPECIFIC; 1781 } 1782 writeInt(code); 1783 StrictMode.clearGatheredViolations(); 1784 if (code == 0) { 1785 if (e instanceof RuntimeException) { 1786 throw (RuntimeException) e; 1787 } 1788 throw new RuntimeException(e); 1789 } 1790 writeString(e.getMessage()); 1791 switch (code) { 1792 case EX_SERVICE_SPECIFIC: 1793 writeInt(((ServiceSpecificException) e).errorCode); 1794 break; 1795 case EX_PARCELABLE: 1796 // Write parceled exception prefixed by length 1797 final int sizePosition = dataPosition(); 1798 writeInt(0); 1799 writeParcelable((Parcelable) e, Parcelable.PARCELABLE_WRITE_RETURN_VALUE); 1800 final int payloadPosition = dataPosition(); 1801 setDataPosition(sizePosition); 1802 writeInt(payloadPosition - sizePosition); 1803 setDataPosition(payloadPosition); 1804 break; 1805 } 1806 } 1807 1808 /** 1809 * Special function for writing information at the front of the Parcel 1810 * indicating that no exception occurred. 1811 * 1812 * @see #writeException 1813 * @see #readException 1814 */ 1815 public final void writeNoException() { 1816 // Despite the name of this function ("write no exception"), 1817 // it should instead be thought of as "write the RPC response 1818 // header", but because this function name is written out by 1819 // the AIDL compiler, we're not going to rename it. 1820 // 1821 // The response header, in the non-exception case (see also 1822 // writeException above, also called by the AIDL compiler), is 1823 // either a 0 (the default case), or EX_HAS_REPLY_HEADER if 1824 // StrictMode has gathered up violations that have occurred 1825 // during a Binder call, in which case we write out the number 1826 // of violations and their details, serialized, before the 1827 // actual RPC respons data. The receiving end of this is 1828 // readException(), below. 1829 if (StrictMode.hasGatheredViolations()) { 1830 writeInt(EX_HAS_REPLY_HEADER); 1831 final int sizePosition = dataPosition(); 1832 writeInt(0); // total size of fat header, to be filled in later 1833 StrictMode.writeGatheredViolationsToParcel(this); 1834 final int payloadPosition = dataPosition(); 1835 setDataPosition(sizePosition); 1836 writeInt(payloadPosition - sizePosition); // header size 1837 setDataPosition(payloadPosition); 1838 } else { 1839 writeInt(0); 1840 } 1841 } 1842 1843 /** 1844 * Special function for reading an exception result from the header of 1845 * a parcel, to be used after receiving the result of a transaction. This 1846 * will throw the exception for you if it had been written to the Parcel, 1847 * otherwise return and let you read the normal result data from the Parcel. 1848 * 1849 * @see #writeException 1850 * @see #writeNoException 1851 */ 1852 public final void readException() { 1853 int code = readExceptionCode(); 1854 if (code != 0) { 1855 String msg = readString(); 1856 readException(code, msg); 1857 } 1858 } 1859 1860 /** 1861 * Parses the header of a Binder call's response Parcel and 1862 * returns the exception code. Deals with lite or fat headers. 1863 * In the common successful case, this header is generally zero. 1864 * In less common cases, it's a small negative number and will be 1865 * followed by an error string. 1866 * 1867 * This exists purely for android.database.DatabaseUtils and 1868 * insulating it from having to handle fat headers as returned by 1869 * e.g. StrictMode-induced RPC responses. 1870 * 1871 * @hide 1872 */ 1873 public final int readExceptionCode() { 1874 int code = readInt(); 1875 if (code == EX_HAS_REPLY_HEADER) { 1876 int headerSize = readInt(); 1877 if (headerSize == 0) { 1878 Log.e(TAG, "Unexpected zero-sized Parcel reply header."); 1879 } else { 1880 // Currently the only thing in the header is StrictMode stacks, 1881 // but discussions around event/RPC tracing suggest we might 1882 // put that here too. If so, switch on sub-header tags here. 1883 // But for now, just parse out the StrictMode stuff. 1884 StrictMode.readAndHandleBinderCallViolations(this); 1885 } 1886 // And fat response headers are currently only used when 1887 // there are no exceptions, so return no error: 1888 return 0; 1889 } 1890 return code; 1891 } 1892 1893 /** 1894 * Throw an exception with the given message. Not intended for use 1895 * outside the Parcel class. 1896 * 1897 * @param code Used to determine which exception class to throw. 1898 * @param msg The exception message. 1899 */ 1900 public final void readException(int code, String msg) { 1901 switch (code) { 1902 case EX_PARCELABLE: 1903 if (readInt() > 0) { 1904 SneakyThrow.sneakyThrow( 1905 (Exception) readParcelable(Parcelable.class.getClassLoader())); 1906 } else { 1907 throw new RuntimeException(msg + " [missing Parcelable]"); 1908 } 1909 case EX_SECURITY: 1910 throw new SecurityException(msg); 1911 case EX_BAD_PARCELABLE: 1912 throw new BadParcelableException(msg); 1913 case EX_ILLEGAL_ARGUMENT: 1914 throw new IllegalArgumentException(msg); 1915 case EX_NULL_POINTER: 1916 throw new NullPointerException(msg); 1917 case EX_ILLEGAL_STATE: 1918 throw new IllegalStateException(msg); 1919 case EX_NETWORK_MAIN_THREAD: 1920 throw new NetworkOnMainThreadException(); 1921 case EX_UNSUPPORTED_OPERATION: 1922 throw new UnsupportedOperationException(msg); 1923 case EX_SERVICE_SPECIFIC: 1924 throw new ServiceSpecificException(readInt(), msg); 1925 } 1926 throw new RuntimeException("Unknown exception code: " + code 1927 + " msg " + msg); 1928 } 1929 1930 /** 1931 * Read an integer value from the parcel at the current dataPosition(). 1932 */ 1933 public final int readInt() { 1934 return nativeReadInt(mNativePtr); 1935 } 1936 1937 /** 1938 * Read a long integer value from the parcel at the current dataPosition(). 1939 */ 1940 public final long readLong() { 1941 return nativeReadLong(mNativePtr); 1942 } 1943 1944 /** 1945 * Read a floating point value from the parcel at the current 1946 * dataPosition(). 1947 */ 1948 public final float readFloat() { 1949 return nativeReadFloat(mNativePtr); 1950 } 1951 1952 /** 1953 * Read a double precision floating point value from the parcel at the 1954 * current dataPosition(). 1955 */ 1956 public final double readDouble() { 1957 return nativeReadDouble(mNativePtr); 1958 } 1959 1960 /** 1961 * Read a string value from the parcel at the current dataPosition(). 1962 */ 1963 public final String readString() { 1964 return nativeReadString(mNativePtr); 1965 } 1966 1967 /** 1968 * Read a CharSequence value from the parcel at the current dataPosition(). 1969 * @hide 1970 */ 1971 public final CharSequence readCharSequence() { 1972 return TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(this); 1973 } 1974 1975 /** 1976 * Read an object from the parcel at the current dataPosition(). 1977 */ 1978 public final IBinder readStrongBinder() { 1979 return nativeReadStrongBinder(mNativePtr); 1980 } 1981 1982 /** 1983 * Read a FileDescriptor from the parcel at the current dataPosition(). 1984 */ 1985 public final ParcelFileDescriptor readFileDescriptor() { 1986 FileDescriptor fd = nativeReadFileDescriptor(mNativePtr); 1987 return fd != null ? new ParcelFileDescriptor(fd) : null; 1988 } 1989 1990 /** {@hide} */ 1991 public final FileDescriptor readRawFileDescriptor() { 1992 return nativeReadFileDescriptor(mNativePtr); 1993 } 1994 1995 /** 1996 * {@hide} 1997 * Read and return a new array of FileDescriptors from the parcel. 1998 * @return the FileDescriptor array, or null if the array is null. 1999 **/ 2000 public final FileDescriptor[] createRawFileDescriptorArray() { 2001 int N = readInt(); 2002 if (N < 0) { 2003 return null; 2004 } 2005 FileDescriptor[] f = new FileDescriptor[N]; 2006 for (int i = 0; i < N; i++) { 2007 f[i] = readRawFileDescriptor(); 2008 } 2009 return f; 2010 } 2011 2012 /** 2013 * {@hide} 2014 * Read an array of FileDescriptors from a parcel. 2015 * The passed array must be exactly the length of the array in the parcel. 2016 * @return the FileDescriptor array, or null if the array is null. 2017 **/ 2018 public final void readRawFileDescriptorArray(FileDescriptor[] val) { 2019 int N = readInt(); 2020 if (N == val.length) { 2021 for (int i=0; i<N; i++) { 2022 val[i] = readRawFileDescriptor(); 2023 } 2024 } else { 2025 throw new RuntimeException("bad array lengths"); 2026 } 2027 } 2028 2029 2030 /*package*/ static native FileDescriptor openFileDescriptor(String file, 2031 int mode) throws FileNotFoundException; 2032 /*package*/ static native FileDescriptor dupFileDescriptor(FileDescriptor orig) 2033 throws IOException; 2034 /*package*/ static native void closeFileDescriptor(FileDescriptor desc) 2035 throws IOException; 2036 /*package*/ static native void clearFileDescriptor(FileDescriptor desc); 2037 2038 /** 2039 * Read a byte value from the parcel at the current dataPosition(). 2040 */ 2041 public final byte readByte() { 2042 return (byte)(readInt() & 0xff); 2043 } 2044 2045 /** 2046 * Please use {@link #readBundle(ClassLoader)} instead (whose data must have 2047 * been written with {@link #writeBundle}. Read into an existing Map object 2048 * from the parcel at the current dataPosition(). 2049 */ 2050 public final void readMap(Map outVal, ClassLoader loader) { 2051 int N = readInt(); 2052 readMapInternal(outVal, N, loader); 2053 } 2054 2055 /** 2056 * Read into an existing List object from the parcel at the current 2057 * dataPosition(), using the given class loader to load any enclosed 2058 * Parcelables. If it is null, the default class loader is used. 2059 */ 2060 public final void readList(List outVal, ClassLoader loader) { 2061 int N = readInt(); 2062 readListInternal(outVal, N, loader); 2063 } 2064 2065 /** 2066 * Please use {@link #readBundle(ClassLoader)} instead (whose data must have 2067 * been written with {@link #writeBundle}. Read and return a new HashMap 2068 * object from the parcel at the current dataPosition(), using the given 2069 * class loader to load any enclosed Parcelables. Returns null if 2070 * the previously written map object was null. 2071 */ 2072 public final HashMap readHashMap(ClassLoader loader) 2073 { 2074 int N = readInt(); 2075 if (N < 0) { 2076 return null; 2077 } 2078 HashMap m = new HashMap(N); 2079 readMapInternal(m, N, loader); 2080 return m; 2081 } 2082 2083 /** 2084 * Read and return a new Bundle object from the parcel at the current 2085 * dataPosition(). Returns null if the previously written Bundle object was 2086 * null. 2087 */ 2088 public final Bundle readBundle() { 2089 return readBundle(null); 2090 } 2091 2092 /** 2093 * Read and return a new Bundle object from the parcel at the current 2094 * dataPosition(), using the given class loader to initialize the class 2095 * loader of the Bundle for later retrieval of Parcelable objects. 2096 * Returns null if the previously written Bundle object was null. 2097 */ 2098 public final Bundle readBundle(ClassLoader loader) { 2099 int length = readInt(); 2100 if (length < 0) { 2101 if (Bundle.DEBUG) Log.d(TAG, "null bundle: length=" + length); 2102 return null; 2103 } 2104 2105 final Bundle bundle = new Bundle(this, length); 2106 if (loader != null) { 2107 bundle.setClassLoader(loader); 2108 } 2109 return bundle; 2110 } 2111 2112 /** 2113 * Read and return a new Bundle object from the parcel at the current 2114 * dataPosition(). Returns null if the previously written Bundle object was 2115 * null. 2116 */ 2117 public final PersistableBundle readPersistableBundle() { 2118 return readPersistableBundle(null); 2119 } 2120 2121 /** 2122 * Read and return a new Bundle object from the parcel at the current 2123 * dataPosition(), using the given class loader to initialize the class 2124 * loader of the Bundle for later retrieval of Parcelable objects. 2125 * Returns null if the previously written Bundle object was null. 2126 */ 2127 public final PersistableBundle readPersistableBundle(ClassLoader loader) { 2128 int length = readInt(); 2129 if (length < 0) { 2130 if (Bundle.DEBUG) Log.d(TAG, "null bundle: length=" + length); 2131 return null; 2132 } 2133 2134 final PersistableBundle bundle = new PersistableBundle(this, length); 2135 if (loader != null) { 2136 bundle.setClassLoader(loader); 2137 } 2138 return bundle; 2139 } 2140 2141 /** 2142 * Read a Size from the parcel at the current dataPosition(). 2143 */ 2144 public final Size readSize() { 2145 final int width = readInt(); 2146 final int height = readInt(); 2147 return new Size(width, height); 2148 } 2149 2150 /** 2151 * Read a SizeF from the parcel at the current dataPosition(). 2152 */ 2153 public final SizeF readSizeF() { 2154 final float width = readFloat(); 2155 final float height = readFloat(); 2156 return new SizeF(width, height); 2157 } 2158 2159 /** 2160 * Read and return a byte[] object from the parcel. 2161 */ 2162 public final byte[] createByteArray() { 2163 return nativeCreateByteArray(mNativePtr); 2164 } 2165 2166 /** 2167 * Read a byte[] object from the parcel and copy it into the 2168 * given byte array. 2169 */ 2170 public final void readByteArray(byte[] val) { 2171 // TODO: make this a native method to avoid the extra copy. 2172 byte[] ba = createByteArray(); 2173 if (ba.length == val.length) { 2174 System.arraycopy(ba, 0, val, 0, ba.length); 2175 } else { 2176 throw new RuntimeException("bad array lengths"); 2177 } 2178 } 2179 2180 /** 2181 * Read a blob of data from the parcel and return it as a byte array. 2182 * {@hide} 2183 * {@SystemApi} 2184 */ 2185 public final byte[] readBlob() { 2186 return nativeReadBlob(mNativePtr); 2187 } 2188 2189 /** 2190 * Read and return a String[] object from the parcel. 2191 * {@hide} 2192 */ 2193 public final String[] readStringArray() { 2194 String[] array = null; 2195 2196 int length = readInt(); 2197 if (length >= 0) 2198 { 2199 array = new String[length]; 2200 2201 for (int i = 0 ; i < length ; i++) 2202 { 2203 array[i] = readString(); 2204 } 2205 } 2206 2207 return array; 2208 } 2209 2210 /** 2211 * Read and return a CharSequence[] object from the parcel. 2212 * {@hide} 2213 */ 2214 public final CharSequence[] readCharSequenceArray() { 2215 CharSequence[] array = null; 2216 2217 int length = readInt(); 2218 if (length >= 0) 2219 { 2220 array = new CharSequence[length]; 2221 2222 for (int i = 0 ; i < length ; i++) 2223 { 2224 array[i] = readCharSequence(); 2225 } 2226 } 2227 2228 return array; 2229 } 2230 2231 /** 2232 * Read and return an ArrayList<CharSequence> object from the parcel. 2233 * {@hide} 2234 */ 2235 public final ArrayList<CharSequence> readCharSequenceList() { 2236 ArrayList<CharSequence> array = null; 2237 2238 int length = readInt(); 2239 if (length >= 0) { 2240 array = new ArrayList<CharSequence>(length); 2241 2242 for (int i = 0 ; i < length ; i++) { 2243 array.add(readCharSequence()); 2244 } 2245 } 2246 2247 return array; 2248 } 2249 2250 /** 2251 * Read and return a new ArrayList object from the parcel at the current 2252 * dataPosition(). Returns null if the previously written list object was 2253 * null. The given class loader will be used to load any enclosed 2254 * Parcelables. 2255 */ 2256 public final ArrayList readArrayList(ClassLoader loader) { 2257 int N = readInt(); 2258 if (N < 0) { 2259 return null; 2260 } 2261 ArrayList l = new ArrayList(N); 2262 readListInternal(l, N, loader); 2263 return l; 2264 } 2265 2266 /** 2267 * Read and return a new Object array from the parcel at the current 2268 * dataPosition(). Returns null if the previously written array was 2269 * null. The given class loader will be used to load any enclosed 2270 * Parcelables. 2271 */ 2272 public final Object[] readArray(ClassLoader loader) { 2273 int N = readInt(); 2274 if (N < 0) { 2275 return null; 2276 } 2277 Object[] l = new Object[N]; 2278 readArrayInternal(l, N, loader); 2279 return l; 2280 } 2281 2282 /** 2283 * Read and return a new SparseArray object from the parcel at the current 2284 * dataPosition(). Returns null if the previously written list object was 2285 * null. The given class loader will be used to load any enclosed 2286 * Parcelables. 2287 */ 2288 public final SparseArray readSparseArray(ClassLoader loader) { 2289 int N = readInt(); 2290 if (N < 0) { 2291 return null; 2292 } 2293 SparseArray sa = new SparseArray(N); 2294 readSparseArrayInternal(sa, N, loader); 2295 return sa; 2296 } 2297 2298 /** 2299 * Read and return a new SparseBooleanArray object from the parcel at the current 2300 * dataPosition(). Returns null if the previously written list object was 2301 * null. 2302 */ 2303 public final SparseBooleanArray readSparseBooleanArray() { 2304 int N = readInt(); 2305 if (N < 0) { 2306 return null; 2307 } 2308 SparseBooleanArray sa = new SparseBooleanArray(N); 2309 readSparseBooleanArrayInternal(sa, N); 2310 return sa; 2311 } 2312 2313 /** 2314 * Read and return a new SparseIntArray object from the parcel at the current 2315 * dataPosition(). Returns null if the previously written array object was null. 2316 */ 2317 public final SparseIntArray readSparseIntArray() { 2318 int N = readInt(); 2319 if (N < 0) { 2320 return null; 2321 } 2322 SparseIntArray sa = new SparseIntArray(N); 2323 readSparseIntArrayInternal(sa, N); 2324 return sa; 2325 } 2326 2327 /** 2328 * Read and return a new ArrayList containing a particular object type from 2329 * the parcel that was written with {@link #writeTypedList} at the 2330 * current dataPosition(). Returns null if the 2331 * previously written list object was null. The list <em>must</em> have 2332 * previously been written via {@link #writeTypedList} with the same object 2333 * type. 2334 * 2335 * @return A newly created ArrayList containing objects with the same data 2336 * as those that were previously written. 2337 * 2338 * @see #writeTypedList 2339 */ 2340 public final <T> ArrayList<T> createTypedArrayList(Parcelable.Creator<T> c) { 2341 int N = readInt(); 2342 if (N < 0) { 2343 return null; 2344 } 2345 ArrayList<T> l = new ArrayList<T>(N); 2346 while (N > 0) { 2347 if (readInt() != 0) { 2348 l.add(c.createFromParcel(this)); 2349 } else { 2350 l.add(null); 2351 } 2352 N--; 2353 } 2354 return l; 2355 } 2356 2357 /** 2358 * Read into the given List items containing a particular object type 2359 * that were written with {@link #writeTypedList} at the 2360 * current dataPosition(). The list <em>must</em> have 2361 * previously been written via {@link #writeTypedList} with the same object 2362 * type. 2363 * 2364 * @return A newly created ArrayList containing objects with the same data 2365 * as those that were previously written. 2366 * 2367 * @see #writeTypedList 2368 */ 2369 public final <T> void readTypedList(List<T> list, Parcelable.Creator<T> c) { 2370 int M = list.size(); 2371 int N = readInt(); 2372 int i = 0; 2373 for (; i < M && i < N; i++) { 2374 if (readInt() != 0) { 2375 list.set(i, c.createFromParcel(this)); 2376 } else { 2377 list.set(i, null); 2378 } 2379 } 2380 for (; i<N; i++) { 2381 if (readInt() != 0) { 2382 list.add(c.createFromParcel(this)); 2383 } else { 2384 list.add(null); 2385 } 2386 } 2387 for (; i<M; i++) { 2388 list.remove(N); 2389 } 2390 } 2391 2392 /** 2393 * Read and return a new ArrayList containing String objects from 2394 * the parcel that was written with {@link #writeStringList} at the 2395 * current dataPosition(). Returns null if the 2396 * previously written list object was null. 2397 * 2398 * @return A newly created ArrayList containing strings with the same data 2399 * as those that were previously written. 2400 * 2401 * @see #writeStringList 2402 */ 2403 public final ArrayList<String> createStringArrayList() { 2404 int N = readInt(); 2405 if (N < 0) { 2406 return null; 2407 } 2408 ArrayList<String> l = new ArrayList<String>(N); 2409 while (N > 0) { 2410 l.add(readString()); 2411 N--; 2412 } 2413 return l; 2414 } 2415 2416 /** 2417 * Read and return a new ArrayList containing IBinder objects from 2418 * the parcel that was written with {@link #writeBinderList} at the 2419 * current dataPosition(). Returns null if the 2420 * previously written list object was null. 2421 * 2422 * @return A newly created ArrayList containing strings with the same data 2423 * as those that were previously written. 2424 * 2425 * @see #writeBinderList 2426 */ 2427 public final ArrayList<IBinder> createBinderArrayList() { 2428 int N = readInt(); 2429 if (N < 0) { 2430 return null; 2431 } 2432 ArrayList<IBinder> l = new ArrayList<IBinder>(N); 2433 while (N > 0) { 2434 l.add(readStrongBinder()); 2435 N--; 2436 } 2437 return l; 2438 } 2439 2440 /** 2441 * Read into the given List items String objects that were written with 2442 * {@link #writeStringList} at the current dataPosition(). 2443 * 2444 * @return A newly created ArrayList containing strings with the same data 2445 * as those that were previously written. 2446 * 2447 * @see #writeStringList 2448 */ 2449 public final void readStringList(List<String> list) { 2450 int M = list.size(); 2451 int N = readInt(); 2452 int i = 0; 2453 for (; i < M && i < N; i++) { 2454 list.set(i, readString()); 2455 } 2456 for (; i<N; i++) { 2457 list.add(readString()); 2458 } 2459 for (; i<M; i++) { 2460 list.remove(N); 2461 } 2462 } 2463 2464 /** 2465 * Read into the given List items IBinder objects that were written with 2466 * {@link #writeBinderList} at the current dataPosition(). 2467 * 2468 * @see #writeBinderList 2469 */ 2470 public final void readBinderList(List<IBinder> list) { 2471 int M = list.size(); 2472 int N = readInt(); 2473 int i = 0; 2474 for (; i < M && i < N; i++) { 2475 list.set(i, readStrongBinder()); 2476 } 2477 for (; i<N; i++) { 2478 list.add(readStrongBinder()); 2479 } 2480 for (; i<M; i++) { 2481 list.remove(N); 2482 } 2483 } 2484 2485 /** 2486 * Read the list of {@code Parcelable} objects at the current data position into the 2487 * given {@code list}. The contents of the {@code list} are replaced. If the serialized 2488 * list was {@code null}, {@code list} is cleared. 2489 * 2490 * @see #writeParcelableList(List, int) 2491 * @hide 2492 */ 2493 public final <T extends Parcelable> void readParcelableList(List<T> list, ClassLoader cl) { 2494 final int N = readInt(); 2495 if (N == -1) { 2496 list.clear(); 2497 return; 2498 } 2499 2500 final int M = list.size(); 2501 int i = 0; 2502 for (; i < M && i < N; i++) { 2503 list.set(i, (T) readParcelable(cl)); 2504 } 2505 for (; i<N; i++) { 2506 list.add((T) readParcelable(cl)); 2507 } 2508 for (; i<M; i++) { 2509 list.remove(N); 2510 } 2511 } 2512 2513 /** 2514 * Read and return a new array containing a particular object type from 2515 * the parcel at the current dataPosition(). Returns null if the 2516 * previously written array was null. The array <em>must</em> have 2517 * previously been written via {@link #writeTypedArray} with the same 2518 * object type. 2519 * 2520 * @return A newly created array containing objects with the same data 2521 * as those that were previously written. 2522 * 2523 * @see #writeTypedArray 2524 */ 2525 public final <T> T[] createTypedArray(Parcelable.Creator<T> c) { 2526 int N = readInt(); 2527 if (N < 0) { 2528 return null; 2529 } 2530 T[] l = c.newArray(N); 2531 for (int i=0; i<N; i++) { 2532 if (readInt() != 0) { 2533 l[i] = c.createFromParcel(this); 2534 } 2535 } 2536 return l; 2537 } 2538 2539 public final <T> void readTypedArray(T[] val, Parcelable.Creator<T> c) { 2540 int N = readInt(); 2541 if (N == val.length) { 2542 for (int i=0; i<N; i++) { 2543 if (readInt() != 0) { 2544 val[i] = c.createFromParcel(this); 2545 } else { 2546 val[i] = null; 2547 } 2548 } 2549 } else { 2550 throw new RuntimeException("bad array lengths"); 2551 } 2552 } 2553 2554 /** 2555 * @deprecated 2556 * @hide 2557 */ 2558 @Deprecated 2559 public final <T> T[] readTypedArray(Parcelable.Creator<T> c) { 2560 return createTypedArray(c); 2561 } 2562 2563 /** 2564 * Read and return a typed Parcelable object from a parcel. 2565 * Returns null if the previous written object was null. 2566 * The object <em>must</em> have previous been written via 2567 * {@link #writeTypedObject} with the same object type. 2568 * 2569 * @return A newly created object of the type that was previously 2570 * written. 2571 * 2572 * @see #writeTypedObject 2573 */ 2574 public final <T> T readTypedObject(Parcelable.Creator<T> c) { 2575 if (readInt() != 0) { 2576 return c.createFromParcel(this); 2577 } else { 2578 return null; 2579 } 2580 } 2581 2582 /** 2583 * Write a heterogeneous array of Parcelable objects into the Parcel. 2584 * Each object in the array is written along with its class name, so 2585 * that the correct class can later be instantiated. As a result, this 2586 * has significantly more overhead than {@link #writeTypedArray}, but will 2587 * correctly handle an array containing more than one type of object. 2588 * 2589 * @param value The array of objects to be written. 2590 * @param parcelableFlags Contextual flags as per 2591 * {@link Parcelable#writeToParcel(Parcel, int) Parcelable.writeToParcel()}. 2592 * 2593 * @see #writeTypedArray 2594 */ 2595 public final <T extends Parcelable> void writeParcelableArray(T[] value, 2596 int parcelableFlags) { 2597 if (value != null) { 2598 int N = value.length; 2599 writeInt(N); 2600 for (int i=0; i<N; i++) { 2601 writeParcelable(value[i], parcelableFlags); 2602 } 2603 } else { 2604 writeInt(-1); 2605 } 2606 } 2607 2608 /** 2609 * Read a typed object from a parcel. The given class loader will be 2610 * used to load any enclosed Parcelables. If it is null, the default class 2611 * loader will be used. 2612 */ 2613 public final Object readValue(ClassLoader loader) { 2614 int type = readInt(); 2615 2616 switch (type) { 2617 case VAL_NULL: 2618 return null; 2619 2620 case VAL_STRING: 2621 return readString(); 2622 2623 case VAL_INTEGER: 2624 return readInt(); 2625 2626 case VAL_MAP: 2627 return readHashMap(loader); 2628 2629 case VAL_PARCELABLE: 2630 return readParcelable(loader); 2631 2632 case VAL_SHORT: 2633 return (short) readInt(); 2634 2635 case VAL_LONG: 2636 return readLong(); 2637 2638 case VAL_FLOAT: 2639 return readFloat(); 2640 2641 case VAL_DOUBLE: 2642 return readDouble(); 2643 2644 case VAL_BOOLEAN: 2645 return readInt() == 1; 2646 2647 case VAL_CHARSEQUENCE: 2648 return readCharSequence(); 2649 2650 case VAL_LIST: 2651 return readArrayList(loader); 2652 2653 case VAL_BOOLEANARRAY: 2654 return createBooleanArray(); 2655 2656 case VAL_BYTEARRAY: 2657 return createByteArray(); 2658 2659 case VAL_STRINGARRAY: 2660 return readStringArray(); 2661 2662 case VAL_CHARSEQUENCEARRAY: 2663 return readCharSequenceArray(); 2664 2665 case VAL_IBINDER: 2666 return readStrongBinder(); 2667 2668 case VAL_OBJECTARRAY: 2669 return readArray(loader); 2670 2671 case VAL_INTARRAY: 2672 return createIntArray(); 2673 2674 case VAL_LONGARRAY: 2675 return createLongArray(); 2676 2677 case VAL_BYTE: 2678 return readByte(); 2679 2680 case VAL_SERIALIZABLE: 2681 return readSerializable(loader); 2682 2683 case VAL_PARCELABLEARRAY: 2684 return readParcelableArray(loader); 2685 2686 case VAL_SPARSEARRAY: 2687 return readSparseArray(loader); 2688 2689 case VAL_SPARSEBOOLEANARRAY: 2690 return readSparseBooleanArray(); 2691 2692 case VAL_BUNDLE: 2693 return readBundle(loader); // loading will be deferred 2694 2695 case VAL_PERSISTABLEBUNDLE: 2696 return readPersistableBundle(loader); 2697 2698 case VAL_SIZE: 2699 return readSize(); 2700 2701 case VAL_SIZEF: 2702 return readSizeF(); 2703 2704 case VAL_DOUBLEARRAY: 2705 return createDoubleArray(); 2706 2707 default: 2708 int off = dataPosition() - 4; 2709 throw new RuntimeException( 2710 "Parcel " + this + ": Unmarshalling unknown type code " + type + " at offset " + off); 2711 } 2712 } 2713 2714 /** 2715 * Read and return a new Parcelable from the parcel. The given class loader 2716 * will be used to load any enclosed Parcelables. If it is null, the default 2717 * class loader will be used. 2718 * @param loader A ClassLoader from which to instantiate the Parcelable 2719 * object, or null for the default class loader. 2720 * @return Returns the newly created Parcelable, or null if a null 2721 * object has been written. 2722 * @throws BadParcelableException Throws BadParcelableException if there 2723 * was an error trying to instantiate the Parcelable. 2724 */ 2725 @SuppressWarnings("unchecked") 2726 public final <T extends Parcelable> T readParcelable(ClassLoader loader) { 2727 Parcelable.Creator<?> creator = readParcelableCreator(loader); 2728 if (creator == null) { 2729 return null; 2730 } 2731 if (creator instanceof Parcelable.ClassLoaderCreator<?>) { 2732 Parcelable.ClassLoaderCreator<?> classLoaderCreator = 2733 (Parcelable.ClassLoaderCreator<?>) creator; 2734 return (T) classLoaderCreator.createFromParcel(this, loader); 2735 } 2736 return (T) creator.createFromParcel(this); 2737 } 2738 2739 /** @hide */ 2740 @SuppressWarnings("unchecked") 2741 public final <T extends Parcelable> T readCreator(Parcelable.Creator<?> creator, 2742 ClassLoader loader) { 2743 if (creator instanceof Parcelable.ClassLoaderCreator<?>) { 2744 Parcelable.ClassLoaderCreator<?> classLoaderCreator = 2745 (Parcelable.ClassLoaderCreator<?>) creator; 2746 return (T) classLoaderCreator.createFromParcel(this, loader); 2747 } 2748 return (T) creator.createFromParcel(this); 2749 } 2750 2751 /** @hide */ 2752 public final Parcelable.Creator<?> readParcelableCreator(ClassLoader loader) { 2753 String name = readString(); 2754 if (name == null) { 2755 return null; 2756 } 2757 Parcelable.Creator<?> creator; 2758 synchronized (mCreators) { 2759 HashMap<String,Parcelable.Creator<?>> map = mCreators.get(loader); 2760 if (map == null) { 2761 map = new HashMap<>(); 2762 mCreators.put(loader, map); 2763 } 2764 creator = map.get(name); 2765 if (creator == null) { 2766 try { 2767 // If loader == null, explicitly emulate Class.forName(String) "caller 2768 // classloader" behavior. 2769 ClassLoader parcelableClassLoader = 2770 (loader == null ? getClass().getClassLoader() : loader); 2771 // Avoid initializing the Parcelable class until we know it implements 2772 // Parcelable and has the necessary CREATOR field. http://b/1171613. 2773 Class<?> parcelableClass = Class.forName(name, false /* initialize */, 2774 parcelableClassLoader); 2775 if (!Parcelable.class.isAssignableFrom(parcelableClass)) { 2776 throw new BadParcelableException("Parcelable protocol requires that the " 2777 + "class implements Parcelable"); 2778 } 2779 Field f = parcelableClass.getField("CREATOR"); 2780 if ((f.getModifiers() & Modifier.STATIC) == 0) { 2781 throw new BadParcelableException("Parcelable protocol requires " 2782 + "the CREATOR object to be static on class " + name); 2783 } 2784 Class<?> creatorType = f.getType(); 2785 if (!Parcelable.Creator.class.isAssignableFrom(creatorType)) { 2786 // Fail before calling Field.get(), not after, to avoid initializing 2787 // parcelableClass unnecessarily. 2788 throw new BadParcelableException("Parcelable protocol requires a " 2789 + "Parcelable.Creator object called " 2790 + "CREATOR on class " + name); 2791 } 2792 creator = (Parcelable.Creator<?>) f.get(null); 2793 } 2794 catch (IllegalAccessException e) { 2795 Log.e(TAG, "Illegal access when unmarshalling: " + name, e); 2796 throw new BadParcelableException( 2797 "IllegalAccessException when unmarshalling: " + name); 2798 } 2799 catch (ClassNotFoundException e) { 2800 Log.e(TAG, "Class not found when unmarshalling: " + name, e); 2801 throw new BadParcelableException( 2802 "ClassNotFoundException when unmarshalling: " + name); 2803 } 2804 catch (NoSuchFieldException e) { 2805 throw new BadParcelableException("Parcelable protocol requires a " 2806 + "Parcelable.Creator object called " 2807 + "CREATOR on class " + name); 2808 } 2809 if (creator == null) { 2810 throw new BadParcelableException("Parcelable protocol requires a " 2811 + "non-null Parcelable.Creator object called " 2812 + "CREATOR on class " + name); 2813 } 2814 2815 map.put(name, creator); 2816 } 2817 } 2818 2819 return creator; 2820 } 2821 2822 /** 2823 * Read and return a new Parcelable array from the parcel. 2824 * The given class loader will be used to load any enclosed 2825 * Parcelables. 2826 * @return the Parcelable array, or null if the array is null 2827 */ 2828 public final Parcelable[] readParcelableArray(ClassLoader loader) { 2829 int N = readInt(); 2830 if (N < 0) { 2831 return null; 2832 } 2833 Parcelable[] p = new Parcelable[N]; 2834 for (int i = 0; i < N; i++) { 2835 p[i] = readParcelable(loader); 2836 } 2837 return p; 2838 } 2839 2840 /** @hide */ 2841 public final <T extends Parcelable> T[] readParcelableArray(ClassLoader loader, 2842 Class<T> clazz) { 2843 int N = readInt(); 2844 if (N < 0) { 2845 return null; 2846 } 2847 T[] p = (T[]) Array.newInstance(clazz, N); 2848 for (int i = 0; i < N; i++) { 2849 p[i] = readParcelable(loader); 2850 } 2851 return p; 2852 } 2853 2854 /** 2855 * Read and return a new Serializable object from the parcel. 2856 * @return the Serializable object, or null if the Serializable name 2857 * wasn't found in the parcel. 2858 */ 2859 public final Serializable readSerializable() { 2860 return readSerializable(null); 2861 } 2862 2863 private final Serializable readSerializable(final ClassLoader loader) { 2864 String name = readString(); 2865 if (name == null) { 2866 // For some reason we were unable to read the name of the Serializable (either there 2867 // is nothing left in the Parcel to read, or the next value wasn't a String), so 2868 // return null, which indicates that the name wasn't found in the parcel. 2869 return null; 2870 } 2871 2872 byte[] serializedData = createByteArray(); 2873 ByteArrayInputStream bais = new ByteArrayInputStream(serializedData); 2874 try { 2875 ObjectInputStream ois = new ObjectInputStream(bais) { 2876 @Override 2877 protected Class<?> resolveClass(ObjectStreamClass osClass) 2878 throws IOException, ClassNotFoundException { 2879 // try the custom classloader if provided 2880 if (loader != null) { 2881 Class<?> c = Class.forName(osClass.getName(), false, loader); 2882 if (c != null) { 2883 return c; 2884 } 2885 } 2886 return super.resolveClass(osClass); 2887 } 2888 }; 2889 return (Serializable) ois.readObject(); 2890 } catch (IOException ioe) { 2891 throw new RuntimeException("Parcelable encountered " + 2892 "IOException reading a Serializable object (name = " + name + 2893 ")", ioe); 2894 } catch (ClassNotFoundException cnfe) { 2895 throw new RuntimeException("Parcelable encountered " + 2896 "ClassNotFoundException reading a Serializable object (name = " 2897 + name + ")", cnfe); 2898 } 2899 } 2900 2901 // Cache of previously looked up CREATOR.createFromParcel() methods for 2902 // particular classes. Keys are the names of the classes, values are 2903 // Method objects. 2904 private static final HashMap<ClassLoader,HashMap<String,Parcelable.Creator<?>>> 2905 mCreators = new HashMap<>(); 2906 2907 /** @hide for internal use only. */ 2908 static protected final Parcel obtain(int obj) { 2909 throw new UnsupportedOperationException(); 2910 } 2911 2912 /** @hide */ 2913 static protected final Parcel obtain(long obj) { 2914 final Parcel[] pool = sHolderPool; 2915 synchronized (pool) { 2916 Parcel p; 2917 for (int i=0; i<POOL_SIZE; i++) { 2918 p = pool[i]; 2919 if (p != null) { 2920 pool[i] = null; 2921 if (DEBUG_RECYCLE) { 2922 p.mStack = new RuntimeException(); 2923 } 2924 p.init(obj); 2925 return p; 2926 } 2927 } 2928 } 2929 return new Parcel(obj); 2930 } 2931 2932 private Parcel(long nativePtr) { 2933 if (DEBUG_RECYCLE) { 2934 mStack = new RuntimeException(); 2935 } 2936 //Log.i(TAG, "Initializing obj=0x" + Integer.toHexString(obj), mStack); 2937 init(nativePtr); 2938 } 2939 2940 private void init(long nativePtr) { 2941 if (nativePtr != 0) { 2942 mNativePtr = nativePtr; 2943 mOwnsNativeParcelObject = false; 2944 } else { 2945 mNativePtr = nativeCreate(); 2946 mOwnsNativeParcelObject = true; 2947 } 2948 } 2949 2950 private void freeBuffer() { 2951 if (mOwnsNativeParcelObject) { 2952 updateNativeSize(nativeFreeBuffer(mNativePtr)); 2953 } 2954 } 2955 2956 private void destroy() { 2957 if (mNativePtr != 0) { 2958 if (mOwnsNativeParcelObject) { 2959 nativeDestroy(mNativePtr); 2960 updateNativeSize(0); 2961 } 2962 mNativePtr = 0; 2963 } 2964 } 2965 2966 @Override 2967 protected void finalize() throws Throwable { 2968 if (DEBUG_RECYCLE) { 2969 if (mStack != null) { 2970 Log.w(TAG, "Client did not call Parcel.recycle()", mStack); 2971 } 2972 } 2973 destroy(); 2974 } 2975 2976 /* package */ void readMapInternal(Map outVal, int N, 2977 ClassLoader loader) { 2978 while (N > 0) { 2979 Object key = readValue(loader); 2980 Object value = readValue(loader); 2981 outVal.put(key, value); 2982 N--; 2983 } 2984 } 2985 2986 /* package */ void readArrayMapInternal(ArrayMap outVal, int N, 2987 ClassLoader loader) { 2988 if (DEBUG_ARRAY_MAP) { 2989 RuntimeException here = new RuntimeException("here"); 2990 here.fillInStackTrace(); 2991 Log.d(TAG, "Reading " + N + " ArrayMap entries", here); 2992 } 2993 int startPos; 2994 while (N > 0) { 2995 if (DEBUG_ARRAY_MAP) startPos = dataPosition(); 2996 String key = readString(); 2997 Object value = readValue(loader); 2998 if (DEBUG_ARRAY_MAP) Log.d(TAG, " Read #" + (N-1) + " " 2999 + (dataPosition()-startPos) + " bytes: key=0x" 3000 + Integer.toHexString((key != null ? key.hashCode() : 0)) + " " + key); 3001 outVal.append(key, value); 3002 N--; 3003 } 3004 outVal.validate(); 3005 } 3006 3007 /* package */ void readArrayMapSafelyInternal(ArrayMap outVal, int N, 3008 ClassLoader loader) { 3009 if (DEBUG_ARRAY_MAP) { 3010 RuntimeException here = new RuntimeException("here"); 3011 here.fillInStackTrace(); 3012 Log.d(TAG, "Reading safely " + N + " ArrayMap entries", here); 3013 } 3014 while (N > 0) { 3015 String key = readString(); 3016 if (DEBUG_ARRAY_MAP) Log.d(TAG, " Read safe #" + (N-1) + ": key=0x" 3017 + (key != null ? key.hashCode() : 0) + " " + key); 3018 Object value = readValue(loader); 3019 outVal.put(key, value); 3020 N--; 3021 } 3022 } 3023 3024 /** 3025 * @hide For testing only. 3026 */ 3027 public void readArrayMap(ArrayMap outVal, ClassLoader loader) { 3028 final int N = readInt(); 3029 if (N < 0) { 3030 return; 3031 } 3032 readArrayMapInternal(outVal, N, loader); 3033 } 3034 3035 /** 3036 * Reads an array set. 3037 * 3038 * @param loader The class loader to use. 3039 * 3040 * @hide 3041 */ 3042 public @Nullable ArraySet<? extends Object> readArraySet(ClassLoader loader) { 3043 final int size = readInt(); 3044 if (size < 0) { 3045 return null; 3046 } 3047 ArraySet<Object> result = new ArraySet<>(size); 3048 for (int i = 0; i < size; i++) { 3049 Object value = readValue(loader); 3050 result.append(value); 3051 } 3052 return result; 3053 } 3054 3055 private void readListInternal(List outVal, int N, 3056 ClassLoader loader) { 3057 while (N > 0) { 3058 Object value = readValue(loader); 3059 //Log.d(TAG, "Unmarshalling value=" + value); 3060 outVal.add(value); 3061 N--; 3062 } 3063 } 3064 3065 private void readArrayInternal(Object[] outVal, int N, 3066 ClassLoader loader) { 3067 for (int i = 0; i < N; i++) { 3068 Object value = readValue(loader); 3069 //Log.d(TAG, "Unmarshalling value=" + value); 3070 outVal[i] = value; 3071 } 3072 } 3073 3074 private void readSparseArrayInternal(SparseArray outVal, int N, 3075 ClassLoader loader) { 3076 while (N > 0) { 3077 int key = readInt(); 3078 Object value = readValue(loader); 3079 //Log.i(TAG, "Unmarshalling key=" + key + " value=" + value); 3080 outVal.append(key, value); 3081 N--; 3082 } 3083 } 3084 3085 3086 private void readSparseBooleanArrayInternal(SparseBooleanArray outVal, int N) { 3087 while (N > 0) { 3088 int key = readInt(); 3089 boolean value = this.readByte() == 1; 3090 //Log.i(TAG, "Unmarshalling key=" + key + " value=" + value); 3091 outVal.append(key, value); 3092 N--; 3093 } 3094 } 3095 3096 private void readSparseIntArrayInternal(SparseIntArray outVal, int N) { 3097 while (N > 0) { 3098 int key = readInt(); 3099 int value = readInt(); 3100 outVal.append(key, value); 3101 N--; 3102 } 3103 } 3104 3105 /** 3106 * @hide For testing 3107 */ 3108 public long getBlobAshmemSize() { 3109 return nativeGetBlobAshmemSize(mNativePtr); 3110 } 3111} 3112