lldb/test/Shell/Commands/Inputs/sigchld.c

   1 #include <assert.h>
   2 #include <signal.h>
   3 #include <stdio.h>
   4 #include <unistd.h>
   5 #include <sys/wait.h>
   6
   7 void handler(int signo) {
   8   printf("SIGCHLD\n");
   9 }
  10
  11 int main() {
  12   void *ret = signal(SIGINT, handler);
  13   assert (ret != SIG_ERR);
  14
  15   pid_t child_pid = fork();
  16   assert (child_pid != -1);
  17
  18   if (child_pid == 0) {
  19     sleep(1);
  20     _exit(14);
  21   }
  22
  23   printf("signo = %d\n", SIGCHLD);
  24   printf("code = %d\n", CLD_EXITED);
  25   printf("child_pid = %d\n", child_pid);
  26   printf("uid = %d\n", getuid());
  27   pid_t waited = wait(NULL);
  28   assert(waited == child_pid);
  29
  30   return 0;
  31 }