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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT license.
#include "ClearScriptV8Native.h"
//-----------------------------------------------------------------------------
// SimpleMutex implementation
//-----------------------------------------------------------------------------
SimpleMutex::SimpleMutex():
    m_pImpl(new Impl)
//-----------------------------------------------------------------------------
void SimpleMutex::Lock()
    m_pImpl->lock();
//-----------------------------------------------------------------------------
bool SimpleMutex::TryLock()
    return m_pImpl->try_lock();
//-----------------------------------------------------------------------------
void SimpleMutex::Unlock()
    m_pImpl->unlock();
//-----------------------------------------------------------------------------
SimpleMutex::~SimpleMutex()
    delete m_pImpl;
//-----------------------------------------------------------------------------
// RecursiveMutex implementation
//-----------------------------------------------------------------------------
RecursiveMutex::RecursiveMutex():
    m_pImpl(new Impl)
//-----------------------------------------------------------------------------
void RecursiveMutex::Lock()
    m_pImpl->lock();
//-----------------------------------------------------------------------------
bool RecursiveMutex::TryLock()
    return m_pImpl->try_lock();
//-----------------------------------------------------------------------------
void RecursiveMutex::Unlock()
    m_pImpl->unlock();
//-----------------------------------------------------------------------------
RecursiveMutex::~RecursiveMutex()
    delete m_pImpl;
//-----------------------------------------------------------------------------
// OnceFlag::Impl
//-----------------------------------------------------------------------------
class OnceFlag::Impl final
    PROHIBIT_COPY(Impl)
    Impl():
        m_Called(false)
    void CallOnce(const std::function<void()>& func)
        if (!m_Called)
            BEGIN_MUTEX_SCOPE(m_Mutex)
                if (!m_Called)
                    func();
                    m_Called = true;
            END_MUTEX_SCOPE
    std::atomic<bool> m_Called;
    SimpleMutex m_Mutex;
//-----------------------------------------------------------------------------
// OnceFlag implementation
//-----------------------------------------------------------------------------
OnceFlag::OnceFlag():
    m_pImpl(new Impl)
//-----------------------------------------------------------------------------
void OnceFlag::CallOnce(const std::function<void()>& func)
    m_pImpl->CallOnce(func);
//-----------------------------------------------------------------------------
OnceFlag::~OnceFlag()
    delete m_pImpl;

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