file-based named mutex like lock for multi-processes.

FileLock.h

#pragma once
#include <filesystem>
#include <boost/interprocess/sync/file_lock.hpp>
#include <boost/interprocess/sync/scoped_lock.hpp>

using std::ofstream;
using std::filesystem::path;
using boost::interprocess::file_lock;
using boost::interprocess::scoped_lock;

namespace utils
{
    class FileLock
    {
        path _path;
        ofstream _file;
        file_lock _lock;
        scoped_lock<file_lock> _scope;
    public:
        FileLock(const path& filePath)
            : _path(filePath),
            _file(_path, std::ios_base::app),
            _lock(_path.string().c_str()),
            _scope(_lock)
        {
            log("[DEBUG]: Creating file lock {}\n", _path);
        }
        ~FileLock()
        {
            log("[DEBUG]: Releasing file lock {}\n", _path);
        }
    };
}