2 // System.Web.TempFileStream.cs
5 // Gonzalo Paniagua Javier (gonzalo@ximian.com)
7 // Copyright (C) 2006 Novell, Inc (http://www.novell.com)
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:
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
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.
30 using System.Runtime.InteropServices;
31 namespace System.Web {
32 public class TempFileStream : FileStream {
37 public TempFileStream (string name)
38 : base (name, FileMode.Create, FileAccess.ReadWrite, FileShare.None, 8192)
42 public override bool CanRead {
43 get { return read_mode; }
46 public override bool CanWrite {
47 get { return !read_mode; }
50 public void SavePosition ()
52 saved_position = Position;
56 public void RestorePosition ()
58 Position = saved_position;
62 public void SetReadOnly ()
68 public void SetWriteOnly ()
74 public override void Write (byte [] buffer, int offset, int count)
77 throw new InvalidOperationException ("mode read");
79 base.Write (buffer, offset, count);
82 public override int Read ([In,Out] byte [] buffer, int offset, int count)
85 throw new InvalidOperationException ("mode write");
87 return base.Read (buffer, offset, count);
90 protected override void Dispose (bool disposing)
94 base.Dispose (disposing);