mcs/class/referencesource/System/net/System/Net/_Semaphore.cs

   1 //------------------------------------------------------------------------------
   2 // <copyright file="Semaphore.cs" company="Microsoft">
   3 //     Copyright (c) Microsoft Corporation.  All rights reserved.
   4 // </copyright>
   5 //------------------------------------------------------------------------------
   6
   7 #pragma warning disable 618
   8
   9 namespace System.Net
  10 {
  11
  12
  13         using System;
  14         using System.Threading;
  15     using System.Security.Permissions;
  16
  17
  18     // used for Connection Pooling
  19     internal sealed class Semaphore : WaitHandle
  20     {
  21         internal Semaphore(int initialCount, int maxCount) : base() {
  22             lock (this) {
  23                 //
  24                 Handle = UnsafeNclNativeMethods.CreateSemaphore(IntPtr.Zero, initialCount, maxCount, IntPtr.Zero);
  25             }
  26         }
  27
  28         /*
  29         // Consider removing.
  30         public Semaphore(int initialCount, int maxCount, string name) : base() {
  31             lock (this) {
  32                 //
  33
  34
  35
  36 */
  37
  38         internal bool ReleaseSemaphore() {
  39 #if DEBUG
  40             int previousCount;
  41             bool success = UnsafeNclNativeMethods.ReleaseSemaphore(Handle, 1, out previousCount);
  42             GlobalLog.Print("ReleaseSemaphore#"+ValidationHelper.HashString(this)+" success:"+success+" previousCount:"+previousCount.ToString());
  43             return success;
  44 #else
  45             return UnsafeNclNativeMethods.ReleaseSemaphore(Handle, 1, IntPtr.Zero);
  46 #endif
  47         }
  48
  49         /*
  50         // Consider removing.
  51         internal bool ReleaseSemaphore(int releaseCount, out int previousCount) {
  52             return UnsafeNclNativeMethods.ReleaseSemaphore(Handle, releaseCount, out previousCount);
  53         }
  54         */
  55     }
  56 }