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//
// System.IO/StreamAsyncResult.cs
//
// Authors:
// Gonzalo Paniagua Javier (gonzalo@ximian.com)
//
// (c) 2004 Novell, Inc. (http://www.novell.com)
//
//
// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
//
// 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.
//
using System.Threading;
namespace System.IO
{
class StreamAsyncResult : IAsyncResult {
object state;
bool completed;
bool done;
Exception exc;
int nbytes = -1;
ManualResetEvent wh;
public StreamAsyncResult (object state)
{
this.state = state;
}
public void SetComplete (Exception e)
{
exc = e;
completed = true;
lock (this) {
if (wh != null)
wh.Set ();
}
}
public void SetComplete (Exception e, int nbytes)
{
this.nbytes = nbytes;
SetComplete (e);
}
public object AsyncState {
get { return state; }
}
public WaitHandle AsyncWaitHandle {
get {
lock (this) {
if (wh == null)
wh = new ManualResetEvent (completed);
return wh;
}
}
}
public virtual bool CompletedSynchronously {
get { return true; }
}
public bool IsCompleted {
get { return completed; }
}
public Exception Exception {
get { return exc; }
}
public int NBytes {
get { return nbytes; }
}
public bool Done {
get { return done; }
set { done = value; }
}
}
}
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