[corlib] Ifdef out calls to SynchronizationAttribute on monotouch
[mono.git] / mcs / class / corlib / System.Threading / LockCookie.cs
1 //
2 // System.Threading.LockCookie.cs
3 //
4 // Author:
5 //   Dick Porter (dick@ximian.com)
6 //
7 // (C) Ximian, Inc.  http://www.ximian.com
8 //
9
10 //
11 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
12 //
13 // Permission is hereby granted, free of charge, to any person obtaining
14 // a copy of this software and associated documentation files (the
15 // "Software"), to deal in the Software without restriction, including
16 // without limitation the rights to use, copy, modify, merge, publish,
17 // distribute, sublicense, and/or sell copies of the Software, and to
18 // permit persons to whom the Software is furnished to do so, subject to
19 // the following conditions:
20 // 
21 // The above copyright notice and this permission notice shall be
22 // included in all copies or substantial portions of the Software.
23 // 
24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 //
32
33 using System.Runtime.InteropServices;
34
35 namespace System.Threading
36 {
37         [ComVisible (true)]
38         public struct LockCookie
39         {
40                 internal int ThreadId;
41                 internal int ReaderLocks;
42                 internal int WriterLocks;
43                 
44                 internal LockCookie (int thread_id)
45                 {
46                         ThreadId = thread_id;
47                         ReaderLocks = 0;
48                         WriterLocks = 0;
49                 }
50                 
51                 internal LockCookie (int thread_id, int reader_locks, int writer_locks)
52                 {
53                         ThreadId = thread_id;
54                         ReaderLocks = reader_locks;
55                         WriterLocks = writer_locks;
56                 }
57
58                 public override int GetHashCode ()
59                 {
60                         return(base.GetHashCode ());
61                 }
62
63                 public bool Equals (LockCookie obj)
64                 {
65                         if (this.ThreadId == obj.ThreadId &&
66                             this.ReaderLocks == obj.ReaderLocks &&
67                             this.WriterLocks == obj.WriterLocks) {
68                                 return(true);
69                         } else {
70                                 return(false);
71                         }
72                 }
73                 
74                 public override bool Equals (Object obj)
75                 {
76                         if (!(obj is LockCookie)) {
77                                 return(false);
78                         }
79                         
80                         return(obj.Equals (this));
81                 }
82
83                 public static bool operator == (LockCookie a, LockCookie b)
84                 {
85                         return a.Equals (b);
86                 }
87
88                 public static bool operator != (LockCookie a, LockCookie b)
89                 {
90                         return !a.Equals (b);
91                 }
92         }
93 }
94