| /* |
| * Copyright (C) 2014 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 com.android.tools.perflib.heap.io; |
| |
| import java.nio.ByteBuffer; |
| |
| public class InMemoryBuffer implements HprofBuffer { |
| |
| private final ByteBuffer mBuffer; |
| |
| public InMemoryBuffer(int capacity) { |
| mBuffer = ByteBuffer.allocateDirect(capacity); |
| } |
| |
| public ByteBuffer getDirectBuffer() { |
| return mBuffer; |
| } |
| |
| @Override |
| public byte readByte() { |
| return mBuffer.get(); |
| } |
| |
| @Override |
| public void read(byte[] b) { |
| mBuffer.get(b); |
| } |
| |
| @Override |
| public void readSubSequence(byte[] b, int sourceStart, int sourceEnd) { |
| ((ByteBuffer)mBuffer.slice().position(sourceStart)).get(b); |
| } |
| |
| @Override |
| public char readChar() { |
| return mBuffer.getChar(); |
| } |
| |
| @Override |
| public short readShort() { |
| return mBuffer.getShort(); |
| } |
| |
| @Override |
| public int readInt() { |
| return mBuffer.getInt(); |
| } |
| |
| @Override |
| public long readLong() { |
| return mBuffer.getLong(); |
| } |
| |
| @Override |
| public float readFloat() { |
| return mBuffer.getFloat(); |
| } |
| |
| @Override |
| public double readDouble() { |
| return mBuffer.getDouble(); |
| } |
| |
| @Override |
| public void setPosition(long position) { |
| mBuffer.position((int) position); |
| } |
| |
| @Override |
| public long position() { |
| return mBuffer.position(); |
| } |
| |
| @Override |
| public boolean hasRemaining() { |
| return mBuffer.hasRemaining(); |
| } |
| |
| @Override |
| public long remaining() { |
| return mBuffer.remaining(); |
| } |
| } |