2 // System.Threading.SynchronizationContext.cs
5 // Lluis Sanchez (lluis@novell.com)
7 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
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:
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
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.
31 using System.Runtime.ConstrainedExecution;
32 using System.Runtime.InteropServices;
34 namespace System.Threading
36 public class SynchronizationContext
38 bool notification_required;
41 static SynchronizationContext currentContext;
43 public SynchronizationContext ()
47 internal SynchronizationContext (SynchronizationContext context)
49 currentContext = context;
52 public static SynchronizationContext Current
54 get { return currentContext; }
57 public virtual SynchronizationContext CreateCopy ()
59 return new SynchronizationContext (this);
62 public bool IsWaitNotificationRequired ()
64 return notification_required;
67 public virtual void OperationCompleted ()
71 public virtual void OperationStarted ()
75 public virtual void Post (SendOrPostCallback d, object state)
77 ThreadPool.QueueUserWorkItem (new WaitCallback (d), state);
80 public virtual void Send (SendOrPostCallback d, object state)
85 public static void SetSynchronizationContext (SynchronizationContext syncContext)
87 currentContext = syncContext;
91 protected void SetWaitNotificationRequired ()
93 notification_required = true;
94 throw new NotImplementedException ();
97 [CLSCompliant (false)]
99 public virtual int Wait (IntPtr[] waitHandles, bool waitAll, int millisecondsTimeout)
101 return WaitHelper (waitHandles, waitAll, millisecondsTimeout);
105 [CLSCompliant (false)]
106 [ReliabilityContract (Consistency.WillNotCorruptState, Cer.MayFail)]
107 [PrePrepareMethod ()]
108 protected static int WaitHelper (IntPtr[] waitHandles, bool waitAll, int millisecondsTimeout)
110 throw new NotImplementedException ();