mcs/class/corlib/coreclr/WaitHandleExtensions.cs

   1 // Copyright (c) Microsoft. All rights reserved.
   2 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
   3
   4 //
   5
   6 using Microsoft.Win32.SafeHandles;
   7 using System.Security;
   8
   9 namespace System.Threading
  10 {
  11     public static class WaitHandleExtensions
  12     {
  13         /// <summary>
  14         /// Gets the native operating system handle.
  15         /// </summary>
  16         /// <param name="waitHandle">The <see cref="System.Threading.WaitHandle"/> to operate on.</param>
  17         /// <returns>A <see cref="System.Runtime.InteropServices.SafeHandle"/> representing the native operating system handle.</returns>
  18         [SecurityCritical]
  19         public static SafeWaitHandle GetSafeWaitHandle(this WaitHandle waitHandle)
  20         {
  21             if (waitHandle == null)
  22             {
  23                 throw new ArgumentNullException("waitHandle");
  24             }
  25
  26             return waitHandle.SafeWaitHandle;
  27         }
  28
  29         /// <summary>
  30         /// Sets the native operating system handle
  31         /// </summary>
  32         /// <param name="waitHandle">The <see cref="System.Threading.WaitHandle"/> to operate on.</param>
  33         /// <param name="value">A <see cref="System.Runtime.InteropServices.SafeHandle"/> representing the native operating system handle.</param>
  34         [SecurityCritical]
  35         public static void SetSafeWaitHandle(this WaitHandle waitHandle, SafeWaitHandle value)
  36         {
  37             if (waitHandle == null)
  38             {
  39                 throw new ArgumentNullException("waitHandle");
  40             }
  41
  42             waitHandle.SafeWaitHandle = value;
  43         }
  44     }
  45 }