singrdk/base/Kernel/System/Threading/InterruptAwareAutoResetEven...

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2008-11-17 18:29:00 -05:00
// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
using System;
using System.Runtime.CompilerServices;
using Microsoft.Singularity.Scheduling;
namespace System.Threading
{
///
/// <summary>
/// Event class implementing an event with auto reset symantics such event automatically
/// reset to non signaled state when single wait is satisfied.
///
/// This class is interrupt aware: interrupts are disabled during the period when the
/// spin lock is held. Code that deals with interrupt handling, for example HAL
/// communication, that could be reentrant during interrupt handling should use
/// this class instead of AutoResetEvent
/// </summary>
///
[NoCCtor]
[CLSCompliant(false)]
public sealed class InterruptAwareAutoResetEvent : InterruptAwareWaitHandle
{
///
/// <summary>
/// Constructor
///</summary>
///
/// <param name="initialState">Initial state of an event true indciates that event is signaled</param>
///
public InterruptAwareAutoResetEvent(bool initialState)
: base(initialState ? WaitHandle.SignalState.Signaled :
WaitHandle.SignalState.Unsignaled,
WaitHandle.SignalState.Unsignaled,
SpinLock.Types.InterruptAutoResetEvent)
{
}
[NoHeapAllocation]
public void InterruptAwareSet()
{
base.InterruptAwareSignalOne(SignalState.Signaled);
}
}
}