如何捕捉 ctrl-c 事件?

2022-01-15 00:00:00 signals sigint posix event-handling c++

如何在 C++ 中捕获 Ctrl+C 事件?

How do I catch a Ctrl+C event in C++?

推荐答案

signal 不是最可靠的方法，因为它在实现上有所不同.我建议使用 sigaction.Tom 的代码现在看起来像这样:

signal isn't the most reliable way as it differs in implementations. I would recommend using sigaction. Tom's code would now look like this :

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

void my_handler(int s){
           printf("Caught signal %d
",s);
           exit(1); 

}

int main(int argc,char** argv)
{

   struct sigaction sigIntHandler;

   sigIntHandler.sa_handler = my_handler;
   sigemptyset(&sigIntHandler.sa_mask);
   sigIntHandler.sa_flags = 0;

   sigaction(SIGINT, &sigIntHandler, NULL);

   pause();

   return 0;    
}

相关文章