2 // System.LocalDataStoreSlot.cs
5 // Dick Porter (dick@ximian.com)
7 // (C) Ximian, Inc. http://www.ximian.com
11 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
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:
21 // The above copyright notice and this permission notice shall be
22 // included in all copies or substantial portions of the Software.
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
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30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
33 using System.Reflection;
34 using System.Runtime.CompilerServices;
35 using System.Runtime.InteropServices;
40 public sealed class LocalDataStoreSlot
43 internal bool thread_local; // false for context-local
45 static object lock_obj = new object ();
46 static bool[] slot_bitmap_thread;
47 static bool[] slot_bitmap_context;
49 internal LocalDataStoreSlot (bool in_thread)
51 thread_local = in_thread;
56 slot_bitmap = slot_bitmap_thread;
58 slot_bitmap = slot_bitmap_context;
59 if (slot_bitmap != null) {
60 for (i = 0; i < slot_bitmap.Length; ++i) {
61 if (!slot_bitmap [i]) {
63 slot_bitmap [i] = true;
67 bool[] new_bitmap = new bool [i + 2];
68 slot_bitmap.CopyTo (new_bitmap, 0);
69 slot_bitmap = new_bitmap;
71 slot_bitmap = new bool [2];
74 slot_bitmap [i] = true;
77 slot_bitmap_thread = slot_bitmap;
79 slot_bitmap_context = slot_bitmap;
83 ~LocalDataStoreSlot ()
85 /* first remove all the values from the slots and
86 * then free the slot itself for reuse.
88 System.Threading.Thread.FreeLocalSlotValues (slot, thread_local);
91 slot_bitmap_thread [slot] = false;
93 slot_bitmap_context [slot] = false;