49 lines
1.6 KiB
C#
49 lines
1.6 KiB
C#
// ==++==
|
|
//
|
|
// 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);
|
|
}
|
|
}
|
|
} |