* corlib_test.dll.sources: added Consts.cs.
[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 #if NET_2_0
34 using System.Runtime.InteropServices;
35 #endif
36
37 namespace System.Threading
38 {
39 #if NET_2_0
40         [ComVisible (true)]
41 #else
42         [Serializable]
43 #endif
44         public struct LockCookie
45         {
46                 internal int ThreadId;
47                 internal int ReaderLocks;
48                 internal int WriterLocks;
49                 
50                 internal LockCookie (int thread_id)
51                 {
52                         ThreadId = thread_id;
53                         ReaderLocks = 0;
54                         WriterLocks = 0;
55                 }
56                 
57                 internal LockCookie (int thread_id, int reader_locks, int writer_locks)
58                 {
59                         ThreadId = thread_id;
60                         ReaderLocks = reader_locks;
61                         WriterLocks = writer_locks;
62                 }
63
64 #if NET_2_0
65                 public override int GetHashCode ()
66                 {
67                         return(base.GetHashCode ());
68                 }
69
70                 public bool Equals (LockCookie obj)
71                 {
72                         if (this.ThreadId == obj.ThreadId &&
73                             this.ReaderLocks == obj.ReaderLocks &&
74                             this.WriterLocks == obj.WriterLocks) {
75                                 return(true);
76                         } else {
77                                 return(false);
78                         }
79                 }
80                 
81                 public override bool Equals (Object obj)
82                 {
83                         if (!(obj is LockCookie)) {
84                                 return(false);
85                         }
86                         
87                         return(obj.Equals (this));
88                 }
89
90                 public static bool operator == (LockCookie obj1, LockCookie obj2)
91                 {
92                         return obj1.Equals (obj2);
93                 }
94
95                 public static bool operator != (LockCookie obj1, LockCookie obj2)
96                 {
97                         return !obj1.Equals (obj2);
98                 }
99 #endif
100
101         }
102 }
103