Method GetNFree

test/test_python_plugin_manager_impl.cpp:53–56

                                          max_idle_seconds, max_plugin_lifetime_seconds) {}

    size_t GetNFree() {
        std::lock_guard<std::mutex> l(_mtx);
        return _free_processes.size();
    }
};

extern void read_code(const std::string& code_path, std::string& code);