int fPollIns(int timeout,int fpc,FILE *fps[],int rdv[])
{ int fi;
int nready;
nready = _fPollIns(timeout,fpc,fps,rdv);
if( nready == 0 ){
for( fi = 0; fi < fpc; fi++ )
if( poll_error(fileno(fps[fi])) )
return -1;
}
return nready;
}
std::vector<epoll::event> epoll::await(std::uint32_t chunk_size) const {
std::vector<epoll_event> active_files;
active_files.resize(chunk_size);
auto events_number = epoll_wait(efd_, &active_files.front(), chunk_size, 1000);
if (-1 == events_number) {
active_files.resize(0);
if (errno != EINTR)
throw poll_error("Could not poll for events. errno = " + std::to_string(errno));
} else {
active_files.resize(events_number);
}
return create_events(active_files);
}
void epoll::remove(const io::channel *context) {
auto event_it =
std::find_if(events_.begin(), events_.end(), [context](epoll_event &ev) { return (context == ev.data.ptr); });
if (event_it != events_.end()) {
auto *event = std::addressof(*event_it);
if (-1 == epoll_ctl(efd_, EPOLL_CTL_DEL, context->socket->get_fd(), event))
throw poll_error("Could not remove the file with fd = " + std::to_string(context->socket->get_fd()) +
" from the OS queue");
events_.erase(std::remove_if(events_.begin(), events_.end(),
[&event_it](auto &ev) { return ev.data.fd == event_it->data.fd; }),
events_.end());
} else {
// WTF?
}
}
