class/Mono.Posix/Mono.Unix/UnixPipes.cs

   1 //
   2 // Mono.Unix/UnixPipes.cs
   3 //
   4 // Authors:
   5 //   Jonathan Pryor (jonpryor@vt.edu)
   6 //
   7 // (C) 2004-2005 Jonathan Pryor
   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;
  30 using System.IO;
  31 using System.Text;
  32 using Mono.Unix;
  33
  34 namespace Mono.Unix {
  35
  36         public struct UnixPipes
  37 #if NET_2_0
  38                 : IEquatable <UnixPipes>
  39 #endif
  40         {
  41                 public UnixPipes (UnixStream reading, UnixStream writing)
  42                 {
  43                         Reading = reading;
  44                         Writing = writing;
  45                 }
  46
  47                 public UnixStream Reading;
  48                 public UnixStream Writing;
  49
  50                 public static UnixPipes CreatePipes ()
  51                 {
  52                         int reading, writing;
  53                         int r = Native.Syscall.pipe (out reading, out writing);
  54                         UnixMarshal.ThrowExceptionForLastErrorIf (r);
  55                         return new UnixPipes (new UnixStream (reading), new UnixStream (writing));
  56                 }
  57
  58                 public override bool Equals (object value)
  59                 {
  60                         if ((value == null) || (value.GetType () != GetType ()))
  61                                 return false;
  62                         UnixPipes other = (UnixPipes) value;
  63                         return Reading.Handle == other.Reading.Handle &&
  64                                 Writing.Handle == other.Writing.Handle;
  65                 }
  66
  67                 public bool Equals (UnixPipes value)
  68                 {
  69                         return Reading.Handle == value.Reading.Handle &&
  70                                 Writing.Handle == value.Writing.Handle;
  71                 }
  72
  73                 public override int GetHashCode ()
  74                 {
  75                         return Reading.Handle.GetHashCode () ^ Writing.Handle.GetHashCode ();
  76                 }
  77
  78                 public static bool operator== (UnixPipes lhs, UnixPipes rhs)
  79                 {
  80                         return lhs.Equals (rhs);
  81                 }
  82
  83                 public static bool operator!= (UnixPipes lhs, UnixPipes rhs)
  84                 {
  85                         return !lhs.Equals (rhs);
  86                 }
  87         }
  88 }
  89
  90 // vim: noexpandtab