fd_list
fd_list *module_fds = 0;
fd_list *trail = 0;
fd_list *traverse = 0;
if ((module_fds = calloc(1, sizeof (fd_list))) == 0) {
fd_list *expired;
fd_list *traverse;
struct fd_list *next;
fd_list *fd; /* module fd's */
list_node_t fd_list; /* linked list */
offsetof(fd_info_t, fd_list));