1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*
*/
using System;
using System.Diagnostics;
using System.IO;
using org.apache.qpid.transport.util;
namespace org.apache.qpid.transport.codec
{
/// <summary>
/// MSEncoder
/// </summary>
public sealed class MSEncoder : AbstractEncoder
{
private readonly MemoryStream _out;
private readonly BinaryWriter _writer;
public MSEncoder(int capacity)
{
_out = new MemoryStream(capacity);
_writer = new BinaryWriter(_out);
}
public void Init()
{
_out.Seek(0, SeekOrigin.Begin);
}
public MemoryStream Segment()
{
int length = (int) _out.Position;
MemoryStream result = new MemoryStream(_out.ToArray(), 0, length);
result.Seek(length, SeekOrigin.Begin);
_out.Seek(0, SeekOrigin.Begin);
return result;
}
protected override void DoPut(byte b)
{
_writer.Write(b);
}
protected override void DoPut(MemoryStream src)
{
_writer.Write(src.ToArray());
}
protected override void Put(byte[] bytes)
{
_writer.Write(bytes);
}
public override void WriteUint8(short b)
{
Debug.Assert(b < 0x100);
_writer.Write((byte) b);
}
public override void WriteUint16(int s)
{
Debug.Assert(s < 0x10000);
_writer.Write(ByteEncoder.GetBigEndian((UInt16) s));
}
public override void WriteUint32(long i)
{
Debug.Assert(i < 0x100000000L);
_writer.Write(ByteEncoder.GetBigEndian((UInt32) i));
}
public override void WriteUint64(long l)
{
_writer.Write(ByteEncoder.GetBigEndian(l));
}
public override void WriteInt8(short b)
{
Debug.Assert(b < 0x100);
_writer.Write((byte) b);
}
public override void WriteInt16(int s)
{
Debug.Assert(s < 0x10000);
_writer.Write(ByteEncoder.GetBigEndian((Int16) s));
}
public override void WriteInt32(long i)
{
Debug.Assert(i < 0x100000000L);
_writer.Write(ByteEncoder.GetBigEndian((Int32) i));
}
public override void WriteInt64(long l)
{
_writer.Write(ByteEncoder.GetBigEndian(l));
}
public override void WriteFloat(float f) {
_writer.Write(f) ;
}
public override void WriteDouble(double d) {
_writer.Write(ByteEncoder.GetBigEndian(d)) ;
}
protected override int BeginSize8()
{
int pos = (int) _out.Position;
_writer.Write((byte) 0);
return pos;
}
protected override void EndSize8(int pos)
{
int cur = (int) _out.Position;
_out.Seek(pos, SeekOrigin.Begin);
_writer.Write((byte) (cur - pos - 1));
_out.Seek(cur, SeekOrigin.Begin);
}
protected override int BeginSize16()
{
int pos = (int) _out.Position;
_writer.Write((short) 0);
return pos;
}
protected override void EndSize16(int pos)
{
int cur = (int) _out.Position;
_out.Seek(pos, SeekOrigin.Begin);
_writer.Write((short) (cur - pos - 2));
_out.Seek(cur, SeekOrigin.Begin);
}
protected override int BeginSize32()
{
int pos = (int) _out.Position;
_writer.Write(0);
return pos;
}
protected override void EndSize32(int pos)
{
int cur = (int) _out.Position;
_out.Seek(pos, SeekOrigin.Begin);
_writer.Write(ByteEncoder.GetBigEndian((Int32) cur - pos - 4));
_out.Seek(cur, SeekOrigin.Begin);
}
}
}
|
