linux signal 参数

#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <unistd.h>

void handle_sigint(int sig) {
    printf("Caught SIGINT, exiting gracefully.\n");
    exit(0);
}

int main() {
    // 注册信号处理函数
    signal(SIGINT, handle_sigint);

    printf("Press Ctrl+C to send SIGINT...\n");
    while (1) {
        sleep(1); // 模拟长时间运行的任务
    }

    return 0;
}

#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <unistd.h>

void handle_sigint(int sig) {
    printf("Caught SIGINT, exiting gracefully.\n");
    exit(0);
}

int main() {
    struct sigaction sa;
    sa.sa_handler = handle_sigint;
    sigemptyset(&sa.sa_mask);
    sa.sa_flags = 0;

    // 使用sigaction注册信号处理函数
    sigaction(SIGINT, &sa, NULL);

    printf("Press Ctrl+C to send SIGINT...\n");
    while (1) {
        sleep(1); // 模拟长时间运行的任务
    }

    return 0;
}