stream keyboard input on a thread

kb.cpp

#include <iostream>
#include <thread>
#include <termios.h>
#include <unistd.h>

void processKeyboardInput() {
    termios original_settings, new_settings;
    tcgetattr(STDIN_FILENO, &original_settings);
    new_settings = original_settings;
    new_settings.c_lflag &= ~ICANON;
    tcsetattr(STDIN_FILENO, TCSAFLUSH, &new_settings);

    char key;
    while (true) {
        key = getchar();
        switch (key) {
            case '\033':
                return;
            default:
                std::cout << " " << key << std::endl;
                break;
        }
    }

    tcsetattr(STDIN_FILENO, TCSAFLUSH, &original_settings);
}

int main() {
    std::thread keyboardThread(processKeyboardInput);
    std::cout << "Main thread is running." << std::endl;
    keyboardThread.join();
    return 0;
}