test12.c

来自「华清远见应用培训班例程源码」· C语言 代码 · 共 40 行

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

void foo(int sig);

int main(int argc, char **argv)
{
  signal(SIGINT, foo);
  signal(SIGTERM, foo);
  //signal(9, foo);

  for (;;)
  {
    sleep(1000);
  }

  return 0;
}

void foo(int sig)
{
  fprintf(stdout, "DEBUG: cached signal %d\n", sig);

  switch (sig)
  {
    case SIGINT:
      fprintf(stdout, "DEBUG: cached signal SIGINT\n");
      break;
    case SIGTERM:
      fprintf(stdout, "DEBUG: cached signal SIGTERM\n");
      break;
    default:
      fprintf(stdout, "DEBUG: cached a unknown signal \n");
      break;
  }

  return;
}