Timestamp EpollPoller::pollOnce(int timeoutMs, ChannelList& activeChannels)
{
int numEvents = ::epoll_wait(epollfd_, &*events_.begin(), static_cast<int>(events_.size()), timeoutMs);
int savedErrno = errno;
Timestamp now(Timestamp::now());
if (numEvents > 0)
{
LOG_INFO("EpollPoller::pollOnce: [%d] events happended", numEvents);
fireActiveChannels(numEvents, activeChannels);
if (static_cast<size_t>(numEvents) == events_.size())
{
events_.resize(events_.size()*2);
}
}
else if (numEvents == 0)
{
LOG_INFO("EpollPoller::pollOnce: nothing happended");
}
else
{
// error happens, log uncommon ones
// TODO : should return -1 if EINTR, else return 0
if (savedErrno != SOCK_ERR_EINTR)
{
errno = savedErrno;
LOG_INFO("EpollPoller::pollOnce: error [%d]", savedErrno);
}
}
return now;
}
int FdEventsKqueuer::poll(std::vector<FdEvent *>& fdevents, int timeoutMs)
{
struct timespec stimespec;
if (timeoutMs > 0)
{
stimespec.tv_sec = timeval / 1000;
stimespec.tv_nsec = (timeval % 1000) * 1000000;
}
int numEvents = ::kevent(kqueuefd_, NULL, 0, &*events_.begin(), static_cast<int>(events_.size()),
timeoutMs > 0 ? &stimespec : 0);
int savedErrno = errno;
if (numEvents > 0)
{
printf("FdEventsKqueuer::poll: [%d] events happended\n", numEvents);
fireActiveChannels(numEvents, fdevents);
if (static_cast<size_t>(numEvents) == events_.size())
{
events_.resize(events_.size() * 2);
}
}
else if (numEvents == 0)
{
printf("FdEventsKqueuer::poll: nothing happended\n");
return 0;
}
else // error happens
{
// TODO : should return -1 if EINTR, else return 0
if (savedErrno != EINTR)
{
errno = savedErrno;
printf("FdEventsKqueuer::poll: error [%d]\n", savedErrno);
}
return -1;
}
return numEvents;
}
Timestamp PollPoller::poll_once(int timeoutMs, ChannelList& activeChannels)
{
int numEvents = ::poll(&*pollfds_.begin(), pollfds_.size(), timeoutMs);
int savedErrno = errno;
Timestamp now(Timestamp::now());
if (numEvents > 0)
{
fireActiveChannels(numEvents, activeChannels);
}
else if (numEvents == 0)
{
LOG_INFO("PollPoller::poll_once: nothing happended");
}
else
{
if (savedErrno != SOCK_ERR_EINTR)
{
errno = savedErrno;
LOG_INFO("EpollPoller::poll_once: error [%d]", errno);
}
}
return now;
}
