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#if NET_4_0 || BOOTSTRAP_NET_4_0
//
// CancellationTokenRegistration.cs
//
// Author:
// Jérémie "Garuma" Laval <jeremie.laval@gmail.com>
//
// Copyright (c) 2009 Jérémie "Garuma" Laval
//
// 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;
using System.Threading;
namespace System.Threading
{
public struct CancellationTokenRegistration: IDisposable, IEquatable<CancellationTokenRegistration>
{
int id;
CancellationTokenSource source;
internal CancellationTokenRegistration (int id, CancellationTokenSource source)
{
this.id = id;
this.source = source;
}
#region IDisposable implementation
public void Dispose ()
{
// Remove the corresponding callback from source
source.RemoveCallback (this);
}
#endregion
#region IEquatable<CancellationTokenRegistration> implementation
public bool Equals (CancellationTokenRegistration other)
{
return this.id == other.id && this.source == other.source;
}
public static bool operator== (CancellationTokenRegistration lhs, CancellationTokenRegistration rhs)
{
return lhs.Equals (rhs);
}
public static bool operator!= (CancellationTokenRegistration lhs, CancellationTokenRegistration rhs)
{
return !lhs.Equals (rhs);
}
#endregion
public override int GetHashCode ()
{
return id.GetHashCode () ^ source.GetHashCode ();
}
public override bool Equals (object obj)
{
return (obj is CancellationTokenRegistration) ? Equals ((CancellationTokenRegistration)obj) : false;
}
}
}
#endif
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