AuroraRuntime/Source/Threading/Primitives/AuEvent.hpp

/***
    Copyright (C) 2021 J Reece Wilson (a/k/a "Reece"). All rights reserved.

    File: AuEvent.hpp
    Date: 2021-6-12
    Author: Reece
***/
#pragma once

#include "AuConditionVariable.Generic.hpp"
#include "AuConditionMutex.Generic.hpp"

namespace Aurora::Threading::Primitives
{
    struct EventImpl : IEvent
    {
        EventImpl(bool bTriggered, bool bAtomicRelease, bool bPermitMultipleTriggers);
        ~EventImpl();

        bool Init();
        bool LockMS(AuUInt64 timeout /*=0*/) override;
        bool LockNS(AuUInt64 timeout /*=0*/) override;
        bool TryLock() override;
        void Reset() override;
        void Set() override;
        bool HasOSHandle(AuMach &mach) override;
        bool HasLockImplementation() override;
        void Lock() override;
        void Unlock() override;
        
    private:
        bool AtomicIsEventSetLogic();

        ConditionMutexImpl mutex_; // must come first
        ConditionVariableImpl condition_;

    #if 0
        const bool bAtomicRelease_ {};
        const bool bPermitMultipleTriggers_ {};
        bool bTriggered_ {};
    #else
        AuUInt8 bAtomicRelease_ : 1;
        AuUInt8 bPermitMultipleTriggers_ : 1;
        AuUInt8 bTriggered_ : 1;
    #endif
    };
}