sample sig

sig.cpp

#include <signal.h>
#include <iostream>
#include <unistd.h>
// kill -9 pid
// kill -15 pid
// kill pid
// Ctrl+c


using namespace std;

void signalExit(int sig){
    if (sig == SIGINT)
      cout << "close SIGINT" << endl;
    if (sig == SIGTERM)
      cout << "close SIGTERM" << endl;
    if (sig == SIGKILL)
      cout << "close SIGKILL" << endl;

    //unexport pin
    exit(0);
}

int main()
{
    signal(SIGINT, signalExit);
    signal(SIGTERM, signalExit);
    signal(SIGKILL, signalExit);

    while(1){
      cout<< "test"<< endl;
      sleep(1);
    }

    return 0;
}