EV_EXCEPT
if (eventmask & EV_EXCEPT)
if (!(eventmask & EV_EXCEPT)) {
eventmask |= EV_EXCEPT;
if ((eventmask & EV_EXCEPT) != 0) {
case EV_EXCEPT:
emulMaskInit(ctx, exLast, EV_EXCEPT, 1);
emulMaskInit(ctx, exNext, EV_EXCEPT, 0);
#define EV_MASK_ALL (EV_READ | EV_WRITE | EV_EXCEPT)