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// 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.
//
// Copyright (c) 2004 Novell, Inc.
//
// Authors:
// Jackson Harper (jackson@ximian.com)
using System;
using System.Threading;
namespace System.Windows.Forms {
internal class AsyncMethodResult : IAsyncResult {
private ManualResetEvent handle;
private object state;
private bool completed;
private object return_value;
public AsyncMethodResult ()
{
handle = new ManualResetEvent (false);
}
public virtual WaitHandle AsyncWaitHandle {
get {
lock (this) {
return handle;
}
}
}
public object AsyncState {
get { return state; }
set { state = value; }
}
public bool CompletedSynchronously {
get { return false; }
}
public bool IsCompleted {
get {
lock (this) {
return completed;
}
}
}
public object EndInvoke ()
{
lock (this) {
if (completed)
return return_value;
}
handle.WaitOne ();
return return_value;
}
public void Complete (object result)
{
lock (this) {
completed = true;
return_value = result;
handle.Set ();
}
}
}
}
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