4 // Author: Atsushi Enomoto (atsushi@ximian.com)
6 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
8 // Permission is hereby granted, free of charge, to any person obtaining
9 // a copy of this software and associated documentation files (the
10 // "Software"), to deal in the Software without restriction, including
11 // without limitation the rights to use, copy, modify, merge, publish,
12 // distribute, sublicense, and/or sell copies of the Software, and to
13 // permit persons to whom the Software is furnished to do so, subject to
14 // the following conditions:
16 // The above copyright notice and this permission notice shall be
17 // included in all copies or substantial portions of the Software.
19 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
20 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
22 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
23 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
24 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
25 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 using System.Collections.ObjectModel;
30 using System.ServiceModel;
32 namespace System.ServiceModel.Channels
34 public abstract class BufferManager
36 protected BufferManager ()
40 public abstract void Clear ();
43 public static BufferManager CreateBufferManager (
44 long maxBufferPoolSize, int maxBufferSize)
46 return new DefaultBufferManager (maxBufferPoolSize,
50 public abstract void ReturnBuffer (byte[] buffer);
52 public abstract byte[] TakeBuffer (int bufferSize);
54 class DefaultBufferManager : BufferManager
60 public DefaultBufferManager (long maxBufferPoolSize,
63 this.max_pool_size = maxBufferPoolSize;
64 this.max_size = maxBufferSize;
67 public override void Clear ()
70 Array.Clear (buffer, 0, buffer.Length);
73 public override void ReturnBuffer (byte [] buffer)
77 if (this.buffer == null)
79 Array.Copy (this.buffer, buffer, this.buffer.Length);
82 public override byte [] TakeBuffer (int bufferSize)
84 if (bufferSize > max_size)
85 throw new ArgumentOutOfRangeException ();
87 if (buffer == null || buffer.Length < bufferSize)
88 buffer = new byte [bufferSize];