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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
// =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
//
//
//
// A common interface for all concurrent collections.
//
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
namespace System.Collections.Concurrent
{
/// <summary>
/// Defines methods to manipulate thread-safe collections intended for producer/consumer usage.
/// </summary>
/// <typeparam name="T">Specifies the type of elements in the collection.</typeparam>
/// <remarks>
/// All implementations of this interface must enable all members of this interface
/// to be used concurrently from multiple threads.
/// </remarks>
internal interface IProducerConsumerCollection<T> : IEnumerable<T>, ICollection
{
/// <summary>
/// Copies the elements of the <see cref="IProducerConsumerCollection{T}"/> to
/// an
/// <see cref="T:System.Array"/>, starting at a specified index.
/// </summary>
/// <param name="array">The one-dimensional <see cref="T:System.Array"/> that is the destination of
/// the elements copied from the <see cref="IProducerConsumerCollection{T}"/>.
/// The array must have zero-based indexing.</param>
/// <param name="index">The zero-based index in <paramref name="array"/> at which copying
/// begins.</param>
/// <exception cref="ArgumentNullException"><paramref name="array"/> is a null reference (Nothing in
/// Visual Basic).</exception>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="index"/> is less than
/// zero.</exception>
/// <exception cref="ArgumentException"><paramref name="index"/> is equal to or greater than the
/// length of the <paramref name="array"/>
/// -or- The number of elements in the source <see cref="ConcurrentQueue{T}"/> is greater than the
/// available space from <paramref name="index"/> to the end of the destination <paramref
/// name="array"/>.
/// </exception>
void CopyTo(T[] array, int index);
/// <summary>
/// Copies the elements contained in the <see cref="IProducerConsumerCollection{T}"/> to a new array.
/// </summary>
/// <returns>A new array containing the elements copied from the <see cref="IProducerConsumerCollection{T}"/>.</returns>
T[] ToArray();
}
/// <summary>
/// A debugger view of the IProducerConsumerCollection that makes it simple to browse the
/// collection's contents at a point in time.
/// </summary>
/// <typeparam name="T">The type of elements stored within.</typeparam>
internal sealed class SystemCollectionsConcurrent_ProducerConsumerCollectionDebugView<T>
{
private IProducerConsumerCollection<T> m_collection; // The collection being viewed.
}
}
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