在linux上的c++中使用密钥退出无限循环

#include <iostream>
#include <thread>
#include <chrono>
#include <atomic>
#include <unistd.h> // For isatty() and read()
#include <termios.h> // For termios structure

// Function to set the terminal in non-canonical mode
void set_non_canonical_mode() {
    struct termios tty;
    tcgetattr(STDIN_FILENO, &tty);
    tty.c_lflag &= ~ICANON; // Disable canonical mode
    tty.c_cc[VMIN] = 0; // Minimum number of characters for noncanonical read
    tty.c_cc[VTIME] = 1; // Timeout in deciseconds for noncanonical read
    tcsetattr(STDIN_FILENO, TCSANOW, &tty);
}

// Function to reset the terminal to canonical mode
void reset_terminal_mode() {
    struct termios tty;
    tcgetattr(STDIN_FILENO, &tty);
    tty.c_lflag |= ICANON; // Enable canonical mode
    tcsetattr(STDIN_FILENO, TCSANOW, &tty);
}

int main() {
    std::atomic<bool> running(true);

    // Set terminal to non-canonical mode
    set_non_canonical_mode();

    // Start a thread to check for key press
    std::thread([&running]() {
        char ch;
        while (running) {
            if (read(STDIN_FILENO, &ch, 1) > 0 && ch == 'q') {
                running = false;
            }
            std::this_thread::sleep_for(std::chrono::milliseconds(100));
        }
    }).detach();

    // Your infinite loop
    while (running) {
        std::cout << "Running..." << std::endl;
        std::this_thread::sleep_for(std::chrono::seconds(1));
    }

    // Reset terminal mode before exiting
    reset_terminal_mode();

    std::cout << "Exited the loop." << std::endl;
    return 0;
}