// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System;
using System.Runtime.InteropServices;
 
internal static partial class Interop
{
    internal static partial class Sys
    {
        [Flags]
        internal enum PipeFlags
        {
            O_CLOEXEC = 0x0010,
        }
 
        /// <summary>
        /// The index into the array filled by <see cref="Pipe"/> which represents the read end of the pipe.
        /// </summary>
        internal const int ReadEndOfPipe = 0;
 
        /// <summary>
        /// The index into the array filled by <see cref="Pipe"/> which represents the read end of the pipe.
        /// </summary>
        internal const int WriteEndOfPipe = 1;
 
        [LibraryImport(Libraries.SystemNative, EntryPoint = "SystemNative_Pipe", SetLastError = true)]
        internal static unsafe partial int Pipe(int* pipefd, PipeFlags flags = 0); // pipefd is an array of two ints
    }
}