// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Diagnostics;
using System.Runtime.InteropServices;
 
namespace System.Threading
{
    internal partial struct Win32ThreadPoolNativeOverlapped
    {
        internal sealed class OverlappedData
        {
            internal GCHandle[]? _pinnedData;
            internal IOCompletionCallback? _callback;
            internal object? _state;
            internal ExecutionContext? _executionContext;
            internal ThreadPoolBoundHandle? _boundHandle;
            internal PreAllocatedOverlapped? _preAllocated;
            internal bool _completed;
 
            internal void Reset()
            {
                Debug.Assert(_boundHandle == null); //not in use
 
                if (_pinnedData != null)
                {
                    for (int i = 0; i < _pinnedData.Length; i++)
                    {
                        if (_pinnedData[i].IsAllocated && _pinnedData[i].Target != null)
                            _pinnedData[i].Target = null;
                    }
                }
 
                _callback = null;
                _state = null;
                _executionContext = null;
                _completed = false;
                _preAllocated = null;
            }
        }
    }
}