wvdotnet/wvloopback.cs

   1 /*
   2  * Versaplex:
   3  *   Copyright (C)2007-2008 Versabanq Innovations Inc. and contributors.
   4  *       See the included file named LICENSE for license information.
   5  */
   6 using System;
   7
   8 namespace Wv
   9 {
  10     public class WvLoopback : WvStream
  11     {
  12         WvBuf mybuf = new WvBuf();
  13
  14         public WvLoopback()
  15         {
  16             post_writable();
  17         }
  18
  19         public override int read(WvBytes b)
  20         {
  21             int max = b.len < mybuf.used ? b.len : mybuf.used;
  22             b.put(0, mybuf.get(max));
  23             if (mybuf.used > 0)
  24                 post_readable();
  25             return max;
  26         }
  27
  28         public override int write(WvBytes b)
  29         {
  30             mybuf.put(b);
  31             post_readable();
  32             post_writable();
  33             return b.len;
  34         }
  35     }
  36 }