src/mscorlib/corefx/Interop/Windows/mincore/Interop.ThreadPoolIO.cs


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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.

using System;
using System.Runtime.InteropServices;
using Microsoft.Win32.SafeHandles;

internal static partial class Interop
{
    internal static partial class mincore
    {
        [DllImport(Libraries.ThreadPool, SetLastError = true)]
        internal static unsafe extern SafeThreadPoolIOHandle CreateThreadpoolIo(SafeHandle fl, [MarshalAs(UnmanagedType.FunctionPtr)] NativeIoCompletionCallback pfnio, IntPtr context, IntPtr pcbe);

        [DllImport(Libraries.ThreadPool)]
        internal static unsafe extern void CloseThreadpoolIo(IntPtr pio);

        [DllImport(Libraries.ThreadPool)]
        internal static unsafe extern void StartThreadpoolIo(SafeThreadPoolIOHandle pio);

        [DllImport(Libraries.ThreadPool)]
        internal static unsafe extern void CancelThreadpoolIo(SafeThreadPoolIOHandle pio);
    }

    internal delegate void NativeIoCompletionCallback(IntPtr instance, IntPtr context, IntPtr overlapped, uint ioResult, UIntPtr numberOfBytesTransferred, IntPtr io);
}