TaskHandler.h

#ifndef TASKHANDLER_H
#define TASKHANDLER_H

#include <string>

class TaskHandler
{
    public:

        enum state_t { pending, finished };

        TaskHandler(const std::string& input_string);

        TaskHandler(TaskHandler &&t);

        ~TaskHandler() = default;

        state_t getState() const;

        bool isPending() const;

        bool isFinished() const;

        bool didErrorOccur() const;

        int getErrorCode() const;

        std::string getInputString() const;

        std::string getOutputString() const;

        void recordOutputAndErrorCode(const std::string& output_string,
                int error_code);

    private:

        // Initial state is pending
        state_t m_state = pending;

        // Input string
        const std::string m_input_string;

        // Output string, only valid in finished state
        std::string m_output_string;

        // Error code, only valid in finished state
        int m_error_code = -1;
};

#endif // TASKHANDLER_H