blob: 2031d1be17894d8526584cd320f1110056bacb5f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
<// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
using System;
using System.Collections.Generic;
namespace Tango.Scripting.Editors.Utils
{
/// <summary>
/// This class is used to prevent stack overflows by representing a 'busy' flag
/// that prevents reentrance when another call is running.
/// However, using a simple 'bool busy' is not thread-safe, so we use a
/// thread-static BusyManager.
/// </summary>
static class BusyManager
{
public struct BusyLock : IDisposable
{
public static readonly BusyLock Failed = new BusyLock(null);
readonly List<object> objectList;
public BusyLock(List<object> objectList)
{
this.objectList = objectList;
}
public bool Success {
get { return objectList != null; }
}
public void Dispose()
{
if (objectList != null) {
objectList.RemoveAt(objectList.Count - 1 |
