FileLock.h

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#pragma once
#include "catapult/utils/NonCopyable.h"
#include "catapult/utils/SpinLock.h"
#include <string>
 
namespace catapult { namespace io {
 
    class FileLock : public utils::NonCopyable {
    public:
#ifdef _MSC_VER
        using FdType = void*;
#else
        using FdType = int;
#endif
 
    public:
        explicit FileLock(const std::string& lockFilePath);
 
        ~FileLock();
 
    public:
        void lock();
 
        bool try_lock();
 
        void unlock() noexcept;
 
    private:
        std::string m_lockFilePath;
        utils::SpinLock m_spinLock;
        FdType m_fd;
    };
}}