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//
// TemporaryArea.cs
//
// Author:
// Jérémie "Garuma" Laval <jeremie.laval@gmail.com>
//
// Copyright (c) 2012 Xamarin, 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_4_0
using System;
using System.Threading;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Concurrent;
namespace System.Linq.Parallel
{
internal class TemporaryArea<TKey, TValue>
{
Dictionary<TKey, TValue> dict;
public TemporaryArea () : this (EqualityComparer<TKey>.Default)
{
}
public TemporaryArea (IEqualityComparer<TKey> comparer)
{
this.dict = new Dictionary<TKey, TValue> (comparer);
}
public bool TryAdd (TKey index, TValue value)
{
lock (dict) {
if (dict.ContainsKey (index))
return false;
dict.Add (index, value);
return true;
}
}
public bool TryRemove (TKey index, out TValue value)
{
lock (dict) {
if (!dict.TryGetValue (index, out value))
return false;
return dict.Remove (index);
}
}
}
}
#endif
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