Merge pull request #2832 from razzfazz/handle_eintr
[mono.git] / mcs / class / System.Web / System.Web / InputFilterStream.cs
1 //
2 // System.Web.InputFilterStream
3 //
4 // Author:
5 //   Gonzalo Paniagua Javier (gonzalo@ximian.com
6 //
7 // (c) 2005 Novell, Inc. (http://www.novell.com)
8 //
9 // Permission is hereby granted, free of charge, to any person obtaining
10 // a copy of this software and associated documentation files (the
11 // "Software"), to deal in the Software without restriction, including
12 // without limitation the rights to use, copy, modify, merge, publish,
13 // distribute, sublicense, and/or sell copies of the Software, and to
14 // permit persons to whom the Software is furnished to do so, subject to
15 // the following conditions:
16 // 
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
19 // 
20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 //
28
29 using System.Runtime.InteropServices;
30 using System.IO;
31
32 namespace System.Web {
33
34         class InputFilterStream : Stream {
35                 Stream stream;
36
37                 public InputFilterStream ()
38                 {
39                 }
40
41                 internal Stream BaseStream {
42                         set { stream = value; }
43                 }
44
45                 public override bool CanRead {
46                         get {
47                                 return true;
48                         }
49                 }
50
51                 public override bool CanSeek {
52                         get {
53                                 return true;
54                         }
55                 }
56
57                 public override bool CanWrite {
58                         get {
59                                 return false;
60                         }
61                 }
62
63                 public override long Position {
64                         get {
65                                 return stream.Position;
66                         }
67
68                         set {
69                                 stream.Position = value;
70                         }
71                 }
72
73                 public override long Length {
74                         get {
75                                 return stream.Length;
76                         }
77                 }
78
79                 public override int Read (byte [] buffer, int offset, int count)
80                 {
81                         return stream.Read (buffer, offset, count);
82                 }
83
84                 public override int ReadByte ()
85                 {
86                         return stream.ReadByte ();
87                 }
88
89                 public override long Seek (long offset, SeekOrigin loc)
90                 {
91                         return stream.Seek (offset, loc);
92                 }
93                 
94                 public override void SetLength (long value)
95                 {
96                         throw new NotSupportedException ("This stream can not change its size");
97                 }
98
99                 public override void Write (byte [] buffer, int offset, int count)
100                 {
101                         throw new NotSupportedException ("This stream can not change its size");
102                 }
103
104                 public override void WriteByte (byte value)
105                 {
106                         throw new NotSupportedException ("This stream can not change its size");
107                 }
108                 
109                 public override void Flush ()
110                 {
111                 }
112
113                 public override void Close ()
114                 {
115                         stream.Close ();
116                 }
117         }
118 }
119