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
|
//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.ServiceModel.Channels
{
using System;
using System.IO;
using System.Runtime;
class ByteStreamBufferedMessageData
{
ArraySegment<byte> buffer;
BufferManager bufferManager;
int refCount;
public ByteStreamBufferedMessageData(ArraySegment<byte> buffer)
: this(buffer, null)
{
}
public ByteStreamBufferedMessageData(ArraySegment<byte> buffer, BufferManager bufferManager)
{
if (buffer.Array == null)
{
throw FxTrace.Exception.ArgumentNull(SR.ArgumentPropertyShouldNotBeNullError("buffer.Array"));
}
this.buffer = buffer;
this.bufferManager = bufferManager;
this.refCount = 0;
}
bool IsClosed
{
get
{
return this.refCount < 0;
}
}
public ArraySegment<byte> Buffer
{
get
{
ThrowIfClosed();
return this.buffer;
}
}
public void Open()
{
ThrowIfClosed();
this.refCount++;
}
public void Close()
{
if (!this.IsClosed)
{
if (--this.refCount <= 0)
{
if (this.bufferManager != null && this.buffer.Array != null)
{
this.bufferManager.ReturnBuffer(this.buffer.Array);
}
this.bufferManager = null;
this.buffer = default(ArraySegment<byte>);
this.refCount = int.MinValue;
}
}
}
public Stream ToStream()
{
return new ByteStreamBufferedMessageDataStream(this);
}
void ThrowIfClosed()
{
if (this.IsClosed)
{
throw FxTrace.Exception.ObjectDisposed(SR.ObjectDisposed(this));
}
}
class ByteStreamBufferedMessageDataStream : MemoryStream
{
ByteStreamBufferedMessageData byteStreamBufferedMessageData;
public ByteStreamBufferedMessageDataStream(ByteStreamBufferedMessageData byteStreamBufferedMessageData)
: base(byteStreamBufferedMessageData.Buffer.Array, byteStreamBufferedMessageData.Buffer.Offset, byteStreamBufferedMessageData.Buffer.Count, false)
{
this.byteStreamBufferedMessageData = byteStreamBufferedMessageData;
this.byteStreamBufferedMessageData.Open(); //increment the refCount
}
public override void Close()
{
this.byteStreamBufferedMessageData.Close();
base.Close();
}
}
}
}
|
