#ifndef SINGLETONPROCESS_H
#define SINGLETONPROCESS_H

#include <boost/interprocess/ipc/message_queue.hpp>
#include <boost/signals2/signal.hpp>
#include <condition_variable>
#include <string_view>
#include <thread>

class SingletonProcess
{
public:
    using MessageHandler = boost::signals2::signal<void(const char *, size_t)>;
    using MessageHandlerSlot = MessageHandler::slot_type;
    SingletonProcess(const std::string_view &name);
    bool alreadyRun() const;
    MessageHandler messageHandler;
    ~SingletonProcess();
    bool sendMessage(const char *data, size_t size);

protected:
    void run();

private:
#if WIN32
    void *m_handle{nullptr}; // windows HANDLE
#else
    int m_handle{-1};
#endif
    bool m_alreadyRun{false};
    std::unique_ptr<boost::interprocess::message_queue> m_messageQueue;

    std::unique_ptr<std::thread> m_thread;
    std::condition_variable m_conditionVariable;
    std::mutex m_mutex;
    bool m_exit{false};
};

#endif // SINGLETONPROCESS_H