mono/mcs/class/System/System.ComponentModel/AsyncOperationManager.cs

//
// AsyncOperationManager.cs
//
// Authors:
//	Atsushi Enomoto <[email protected]>
//
// Copyright (C) 2006 Novell, Inc.
//

//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#if NET_2_0
using System.Security.Permissions;
using System.Threading;

namespace System.ComponentModel
{
	public static class AsyncOperationManager
	{
		static AsyncOperationManager ()
		{
		}

		[EditorBrowsable (EditorBrowsableState.Advanced)]
		public static SynchronizationContext SynchronizationContext {
			get { 
				if (SynchronizationContext.Current == null)
					SynchronizationContext.SetSynchronizationContext (new SynchronizationContext ());
				
				return SynchronizationContext.Current;
			}
			[SecurityPermission (SecurityAction.LinkDemand)]
			set { SynchronizationContext.SetSynchronizationContext (value); }
		}

		public static AsyncOperation CreateOperation (object userSuppliedState)
		{
			return new AsyncOperation (
				SynchronizationContext, userSuppliedState);
		}
	}
}
#endif