stellar

0 #ifndef STELLAR_ARENA_ENGINE_H

1 #define STELLAR_ARENA_ENGINE_H

2

3 #include <cstdint>

4 #include <queue>

5 #include <string>

6

7 class Engine {

8 public:

9 Engine(const Engine &) = delete;

10 Engine &operator=(const Engine &) = delete;

11 Engine(const char *file);

12

13 ~Engine();

14

15 [[nodiscard]] const std::string &get_name() const { return name; }

16 [[nodiscard]] const std::string &get_author() const { return author; }

17

18 void send(std::string &&command);

19 std::string receive();

20

21 private:

22 class Pipes {

23 public:

24 Pipes();

25 Pipes(const Pipes &) = delete;

26 Pipes &operator=(const Pipes &) = delete;

27

28 ~Pipes() {

29 if (!closed) close();

30 }

31

32 void close();

33

34 int operator[](int idx) { return fd[idx]; }

35

36 private:

37 int fd[2]{};

38 bool closed = false;

39 };

40

41 [[noreturn]] void start_engine();

42

43 const char *file = nullptr;

44 Pipes pipeFrom, pripeTo;

45 pid_t engine_pid;

46

47 std::string name, author;

48

49 char rb[1000]{};

50 int rb_size = 0;

51

52 std::queue<std::string> q;

53 std::string q_buffer;

54

55 static uint16_t id_t;

56 uint16_t id = id_t++;

57 };

58

59 #endif