Program Listing for File command_terminal.hpp

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#ifdef USE_TERMINAL

#ifndef TERMINAL_HPP
#define TERMINAL_HPP

#include <mutex>
#include <atomic>

enum TERMINAL_CMD_TYPE
{
  ADD,
  START,
  STOP,
  ADD_FRONT,
  CLEAR,
  REMOVE_NEXT,
  ALLOW_AUTO_LAND,
  DO_NOT_AUTO_LAND,
  UNKNOWN
};

class Terminal{

public:

  static std::mutex terminal_mutex_;
  static std::mutex& getMutex();

  Terminal(bool& on);

  // TODO: add a constructor without a ref that sets the internal bool to true
  // and a destrcutor that sets it to false

  std::string getCommand();

  bool hasCommnad();

  void terminalWorker();

  TERMINAL_CMD_TYPE convertToEnum(const std::string& cmd_type);
  ~Terminal();

private:

  std::string timedRead(int timeout_s = 1, int timeout_ms = 0);
  bool& on_;
  int pt_, xterm_fd_, saved_stdout_;
  char * ptname_;
  std::string s;
  std::atomic<bool> received_cmd_;

};

#endif // TERMINAL_HPP
#endif // TERMINAL