using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
namespace SokoSolve.Common.Structures{
public class ThreadSafeManagedCollection<T> : ManagedCollection<T>, IEnumerable<T>
{
private readonly object locker = new object();
public ThreadSafeManagedCollection(ManagedCollectionNotification<T> notification)
: base(notification)
{
}
#region IEnumerable<T> Members
///<summary>
///Returns an enumerator that iterates through the collection.
///</summary>
///
///<returns>
///A <see cref="T:System.Collections.Generic.IEnumerator`1"></see> that can be used to iterate through the collection.
///</returns>
///<filterpriority>1</filterpriority>
IEnumerator<T> IEnumerable<T>.GetEnumerator()
{
lock (locker)
{
List<T> buffer = new List<T>(inner);
return buffer.GetEnumerator();
}
}
///<summary>
///Returns an enumerator that iterates through a collection.
///</summary>
///
///<returns>
///An <see cref="T:System.Collections.IEnumerator"></see> object that can be used to iterate through the collection.
///</returns>
///<filterpriority>2</filterpriority>
public override IEnumerator GetEnumerator()
{
lock (locker)
{
T[] buffer = inner.ToArray();
return buffer.GetEnumerator();
}
}
#endregion
///<summary>
///Inserts an item to the <see cref="T:System.Collections.Generic.IList`1"></see> at the specified index.
///</summary>
///
///<param name="item">The object to insert into the <see cref="T:System.Collections.Generic.IList`1"></see>.</param>
///<param name="index">The zero-based index at which item should be inserted.</param>
///<exception cref="T:System.NotSupportedException">The <see cref="T:System.Collections.Generic.IList`1"></see> is read-only.</exception>
///<exception cref="T:System.ArgumentOutOfRangeException">index is not a valid index in the <see cref="T:System.Collections.Generic.IList`1"></see>.</exception>
public override void Insert(int index, T item)
{
lock (locker)
{
base.Insert(index, item);
}
}
///<summary>
///Removes the <see cref="T:System.Collections.Generic.IList`1"></see> item at the specified index.
///</summary>
///
///<param name="index">The zero-based index of the item to remove.</param>
///<exception cref="T:System.NotSupportedException">The <see cref="T:System.Collections.Generic.IList`1"></see> is read-only.</exception>
///<exception cref="T:System.ArgumentOutOfRangeException">index is not a valid index in the <see cref="T:System.Collections.Generic.IList`1"></see>.</exception>
public override void RemoveAt(int index)
{
lock (locker)
{
base.RemoveAt(index);
}
}
///<summary>
///Adds an item to the <see cref="T:System.Collections.Generic.ICollection`1"></see>.
///</summary>
///
///<param name="item">The object to add to the <see cref="T:System.Collections.Generic.ICollection`1"></see>.</param>
///<exception cref="T:System.NotSupportedException">The <see cref="T:System.Collections.Generic.ICollection`1"></see> is read-only.</exception>
public override void Add(T item)
{
lock (locker)
{
base.Add(item);
}
}
///<summary>
///Removes all items from the <see cref="T:System.Collections.Generic.ICollection`1"></see>.
///</summary>
///
///<exception cref="T:System.NotSupportedException">The <see cref="T:System.Collections.Generic.ICollection`1"></see> is read-only. </exception>
public override void Clear()
{
lock (locker)
{
base.Clear();
}
}
///<summary>
///Copies the elements of the <see cref="T:System.Collections.Generic.ICollection`1"></see> to an <see cref="T:System.Array"></see>, starting at a particular <see cref="T:System.Array"></see> index.
///</summary>
///
///<param name="array">The one-dimensional <see cref="T:System.Array"></see> that is the destination of the elements copied from <see cref="T:System.Collections.Generic.ICollection`1"></see>. The <see cref="T:System.Array"></see> must have zero-based indexing.</param>
///<param name="arrayIndex">The zero-based index in array at which copying begins.</param>
///<exception cref="T:System.ArgumentOutOfRangeException">arrayIndex is less than 0.</exception>
///<exception cref="T:System.ArgumentNullException">array is null.</exception>
///<exception cref="T:System.ArgumentException">array is multidimensional.-or-arrayIndex is equal to or greater than the length of array.-or-The number of elements in the source <see cref="T:System.Collections.Generic.ICollection`1"></see> is greater than the available space from arrayIndex to the end of the destination array.-or-Type T cannot be cast automatically to the type of the destination array.</exception>
public override void CopyTo(T[] array, int arrayIndex)
{
lock (locker)
{
base.CopyTo(array, arrayIndex);
}
}
///<summary>
///Removes the first occurrence of a specific object from the <see cref="T:System.Collections.Generic.ICollection`1"></see>.
///</summary>
///
///<returns>
///true if item was successfully removed from the <see cref="T:System.Collections.Generic.ICollection`1"></see>; otherwise, false. This method also returns false if item is not found in the original <see cref="T:System.Collections.Generic.ICollection`1"></see>.
///</returns>
///
///<param name="item">The object to remove from the <see cref="T:System.Collections.Generic.ICollection`1"></see>.</param>
///<exception cref="T:System.NotSupportedException">The <see cref="T:System.Collections.Generic.ICollection`1"></see> is read-only.</exception>
public override bool Remove(T item)
{
lock (locker)
{
return base.Remove(item);
}
}
}
}
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