1 /*
2  * Copyright (C) 2007 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package org.apache.harmony.dalvik.ddmc;
18 
19 import java.nio.ByteBuffer;
20 
21 /**
22  * A chunk of DDM data.  This is really just meant to hold a few pieces
23  * of data together.
24  *
25  * The "offset" and "length" fields are present so handlers can over-allocate
26  * or share byte buffers.
27  */
28 public class Chunk {
29 
30     /*
31      * Public members.  Do not rename without updating the VM.
32      */
33     public int type;                // chunk type
34     public byte[] data;             // chunk data
35     public int offset, length;      // position within "data"
36 
37     /**
38      * Blank constructor.  Fill in your own fields.
39      */
Chunk()40     public Chunk() {}
41 
42     /**
43      * Constructor with all fields.
44      */
Chunk(int type, byte[] data, int offset, int length)45     public Chunk(int type, byte[] data, int offset, int length) {
46         this.type = type;
47         this.data = data;
48         this.offset = offset;
49         this.length = length;
50     }
51 
52     /**
53      * Construct from a ByteBuffer.  The chunk is assumed to start at
54      * offset 0 and continue to the current position.
55      */
Chunk(int type, ByteBuffer buf)56     public Chunk(int type, ByteBuffer buf) {
57         this.type = type;
58 
59         this.data = buf.array();
60         this.offset = buf.arrayOffset();
61         this.length = buf.position();
62     }
63 }
64 
65