safe_waitpid
safe_waitpid(pid);
safe_waitpid(pid);
status += safe_waitpid(pids[i]);
safe_waitpid(pid);
safe_waitpid(pid);
safe_waitpid(pid);
safe_waitpid(pid);
safe_waitpid(pid);
safe_waitpid(pid);
safe_waitpid(pid1);
safe_waitpid(pid2);
safe_waitpid(pid);
safe_waitpid(pid);
safe_waitpid(pid);
safe_waitpid(pid);