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 		: IEquatable <UnixPipes>
38 	{
UnixPipesMono.Unix.UnixPipes39 		public UnixPipes (UnixStream reading, UnixStream writing)
40 		{
41 			Reading = reading;
42 			Writing = writing;
43 		}
44 
45 		public UnixStream Reading;
46 		public UnixStream Writing;
47 
CreatePipesMono.Unix.UnixPipes48 		public static UnixPipes CreatePipes ()
49 		{
50 			int reading, writing;
51 			int r = Native.Syscall.pipe (out reading, out writing);
52 			UnixMarshal.ThrowExceptionForLastErrorIf (r);
53 			return new UnixPipes (new UnixStream (reading), new UnixStream (writing));
54 		}
55 
EqualsMono.Unix.UnixPipes56 		public override bool Equals (object value)
57 		{
58 			if ((value == null) || (value.GetType () != GetType ()))
59 				return false;
60 			UnixPipes other = (UnixPipes) value;
61 			return Reading.Handle == other.Reading.Handle &&
62 				Writing.Handle == other.Writing.Handle;
63 		}
64 
EqualsMono.Unix.UnixPipes65 		public bool Equals (UnixPipes value)
66 		{
67 			return Reading.Handle == value.Reading.Handle &&
68 				Writing.Handle == value.Writing.Handle;
69 		}
70 
GetHashCodeMono.Unix.UnixPipes71 		public override int GetHashCode ()
72 		{
73 			return Reading.Handle.GetHashCode () ^ Writing.Handle.GetHashCode ();
74 		}
75 
operator ==Mono.Unix.UnixPipes76 		public static bool operator== (UnixPipes lhs, UnixPipes rhs)
77 		{
78 			return lhs.Equals (rhs);
79 		}
80 
operator !=Mono.Unix.UnixPipes81 		public static bool operator!= (UnixPipes lhs, UnixPipes rhs)
82 		{
83 			return !lhs.Equals (rhs);
84 		}
85 	}
86 }
87 
88 // vim: noexpandtab
89