Re: Edge triggered epoll with pts devices acts as level triggered

From: Heikki Orsila
Date: Sat Aug 13 2005 - 05:32:54 EST


Adam Langley wrote:
> epoll_wait(epoll_fd, events, 4, -1);
> write(1, ".", 1);

The test case is faulty. write will trigger the event again infinitely.
fds 0 and 1 are the same in many cases. Try this:

$ ./epolltest > foo

Now you will only get 1 trigger for each input.

--
Heikki Orsila Barbie's law:
heikki.orsila@xxxxxx "Math is hard, let's go shopping!"
http://www.iki.fi/shd
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