LS3_PrintLabel/main.c

#include "./GODEX500/Godex500.h"
#include <stdio.h>
#include <string.h>
#include <signal.h>
#include <unistd.h>

#define SerialDevice "/dev/ttyUSB0"

static int serial_port = -1;

static void cleanup(int signum)
{
    (void)signum;
    if (serial_port >= 0)
        close(serial_port);
    write(STDOUT_FILENO, "\nПорт закрыт. \n", 23);
    _exit(0);
}

static void install_handler(int signo)
{
    struct sigaction sa = {
        .sa_handler = cleanup,
        .sa_flags   = SA_RESTART 
    };
    sigemptyset(&sa.sa_mask);
    sigaction(signo, &sa, NULL);
}

int main(void)
{

    install_handler(SIGINT);
    install_handler(SIGTERM);  
    install_handler(SIGHUP);
    install_handler(SIGQUIT);

    const char *model = "LS3";
    char id[256];

    serial_port = GODEX500_setup_serial(SerialDevice);
    if (serial_port < 0) {
        perror("serial");
        return 1;
    }

    puts("Введите ID (Ctrl+D, Ctrl+C или kill для выхода):");
    while (fgets(id, sizeof id, stdin)) {
        id[strcspn(id, "\n")] = '\0';
        if (*id == '\0') continue;
        GODEX500_print_label(serial_port, id, model);
        printf("Печать %s завершена\n", id);
    }

    cleanup(0);
    return 0;
}