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// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
//
// <OWNER>Microsoft</OWNER>
/*============================================================
**
** Class: LockCookie
**
**
** Purpose: Defines the lock that implements
** single-writer/multiple-reader semantics
**
**
===========================================================*/
namespace System.Threading {
using System;
[System.Runtime.InteropServices.ComVisible(true)]
public struct LockCookie
{
private int _dwFlags;
private int _dwWriterSeqNum;
private int _wReaderAndWriterLevel;
private int _dwThreadID;
public override int GetHashCode()
{
// review - Microsoft!
return _dwFlags + _dwWriterSeqNum + _wReaderAndWriterLevel + _dwThreadID;
}
public override bool Equals(Object obj)
{
if (obj is LockCookie)
return Equals((LockCookie)obj);
else
return false;
}
public bool Equals(LockCookie obj)
{
return obj._dwFlags == _dwFlags && obj._dwWriterSeqNum == _dwWriterSeqNum &&
obj._wReaderAndWriterLevel == _wReaderAndWriterLevel && obj._dwThreadID == _dwThreadID;
}
public static bool operator ==(LockCookie a, LockCookie b)
{
return a.Equals(b);
}
public static bool operator !=(LockCookie a, LockCookie b)
{
return !(a == b);
}
}
}
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