| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package libcore.io; |
| |
| /** |
| * Iterates over big- or little-endian bytes. See {@link MemoryMappedFile#bigEndianIterator} and |
| * {@link MemoryMappedFile#littleEndianIterator}. |
| * |
| * @hide don't make this public without adding bounds checking. |
| */ |
| public abstract class BufferIterator { |
| /** |
| * Seeks to the absolute position {@code offset}, measured in bytes from the start. |
| */ |
| public abstract void seek(int offset); |
| |
| /** |
| * Skips forwards or backwards {@code byteCount} bytes from the current position. |
| */ |
| public abstract void skip(int byteCount); |
| |
| /** |
| * Copies {@code byteCount} bytes from the current position into {@code dst}, starting at |
| * {@code dstOffset}, and advances the current position {@code byteCount} bytes. |
| */ |
| public abstract void readByteArray(byte[] dst, int dstOffset, int byteCount); |
| |
| /** |
| * Returns the byte at the current position, and advances the current position one byte. |
| */ |
| public abstract byte readByte(); |
| |
| /** |
| * Returns the 32-bit int at the current position, and advances the current position four bytes. |
| */ |
| public abstract int readInt(); |
| |
| /** |
| * Copies {@code intCount} 32-bit ints from the current position into {@code dst}, starting at |
| * {@code dstOffset}, and advances the current position {@code 4 * intCount} bytes. |
| */ |
| public abstract void readIntArray(int[] dst, int dstOffset, int intCount); |
| |
| /** |
| * Returns the 16-bit short at the current position, and advances the current position two bytes. |
| */ |
| public abstract short readShort(); |
| } |