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.
29 using System.Runtime.ConstrainedExecution;
30 using System.Runtime.InteropServices;
32 namespace System.Threading
34 public class SynchronizationContext
36 bool notification_required;
39 static SynchronizationContext currentContext;
41 public SynchronizationContext ()
45 internal SynchronizationContext (SynchronizationContext context)
47 currentContext = context;
50 public static SynchronizationContext Current {
53 if (currentContext == null)
54 currentContext = AndroidPlatform.GetDefaultSyncContext ();
56 return currentContext;
60 public virtual SynchronizationContext CreateCopy ()
62 return new SynchronizationContext (this);
65 public bool IsWaitNotificationRequired ()
67 return notification_required;
70 public virtual void OperationCompleted ()
74 public virtual void OperationStarted ()
78 public virtual void Post (SendOrPostCallback d, object state)
80 ThreadPool.QueueUserWorkItem (new WaitCallback (d), state);
83 public virtual void Send (SendOrPostCallback d, object state)
88 public static void SetSynchronizationContext (SynchronizationContext syncContext)
90 currentContext = syncContext;
95 public static void SetThreadStaticContext (SynchronizationContext syncContext)
97 currentContext = syncContext;
101 protected void SetWaitNotificationRequired ()
103 notification_required = true;
106 [CLSCompliant (false)]
107 [PrePrepareMethod ()]
108 public virtual int Wait (IntPtr[] waitHandles, bool waitAll, int millisecondsTimeout)
110 return WaitHelper (waitHandles, waitAll, millisecondsTimeout);
114 [CLSCompliant (false)]
115 [ReliabilityContract (Consistency.WillNotCorruptState, Cer.MayFail)]
116 [PrePrepareMethod ()]
117 protected static int WaitHelper (IntPtr[] waitHandles, bool waitAll, int millisecondsTimeout)
119 throw new NotImplementedException ();