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events = (intptr_t)[_FDToEvents
objectForKey: (void *)((intptr_t)fd + 1)];
events &= ~removeEvents;
if (events == 0) {
if (epoll_ctl(_epfd, EPOLL_CTL_DEL, fd, NULL) == -1)
@throw [OFObserveFailedException
exceptionWithObserver: self
errNo: errno];
[_FDToEvents removeObjectForKey: (void *)((intptr_t)fd + 1)];
} else {
struct epoll_event event;
memset(&event, 0, sizeof(event));
event.events = (int)events;
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events = (intptr_t)[_FDToEvents
objectForKey: (void *)((intptr_t)fd + 1)];
events &= ~removeEvents;
if (events == 0) {
if (epoll_ctl(_epfd, EPOLL_CTL_DEL, fd, NULL) == -1)
/*
* When an async connect fails, it seems the socket is
* automatically removed from epoll, meaning ENOENT is
* returned when we try to remove it after it failed.
*/
if (errno != ENOENT)
@throw [OFObserveFailedException
exceptionWithObserver: self
errNo: errno];
[_FDToEvents removeObjectForKey: (void *)((intptr_t)fd + 1)];
} else {
struct epoll_event event;
memset(&event, 0, sizeof(event));
event.events = (int)events;
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