Program Listing for File critical-section.h

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#pragma once

#ifdef _WIN32
#include <Windows.h>
using SynchronizationPrimitive = CRITICAL_SECTION;
#else
#include <mutex>
using SynchronizationPrimitive = std::mutex;
#endif
#include <memory>
#include "instrumentation/gpa_itt_notify.h"

#ifndef INTEL_NO_ITTNOTIFY_API
namespace itt_notify {
class Overlapped;
}
#endif

namespace gpa {
namespace concurrent {

struct CriticalSection;

struct CriticalSectionScopedLock
{
    CriticalSection& mCriticalSection;
    bool mEntered = false;

    CriticalSectionScopedLock(CriticalSection& criticalSection, bool dontEnter = false);

    void Enter();
    void Leave();

    ~CriticalSectionScopedLock();
};

struct CriticalSection
{
    SynchronizationPrimitive mCriticalSectionPrimitive;

    CriticalSection();
    ~CriticalSection();
    void Enter();
    void Leave();

    CriticalSectionScopedLock ObtainScopedLock(bool dontEnter = false);
#if !defined(INTEL_NO_ITTNOTIFY_API) && !defined(__linux__)
    std::unique_ptr<itt_notify::Overlapped> m_itt;
#endif
};

}  // namespace concurrent
}  // namespace gpa