__evEmulMask
ctx = ((__evEmulMask *)rfds)->ctx;
ctx = ((__evEmulMask *)wfds)->ctx;
ctx = ((__evEmulMask *)efds)->ctx;
__fd_eventfield(int fd, __evEmulMask *maskp) {
__poll_event(__evEmulMask *maskp) {
__fd_clr(int fd, __evEmulMask *maskp) {
__fd_set(int fd, __evEmulMask *maskp) {
extern short *__fd_eventfield(int fd, __evEmulMask *maskp);
extern short __poll_event(__evEmulMask *maskp);
extern void __fd_clr(int fd, __evEmulMask *maskp);
extern void __fd_set(int fd, __evEmulMask *maskp);
__evEmulMask rdLast, rdNext;
__evEmulMask wrLast, wrNext;
__evEmulMask exLast, exNext;
__evEmulMask nonblockBefore;