On 09/29/2015 10:48 AM, Oleg Smolsky wrote:
Hi there! I am reading tcmu-design.txt and have a question about
"dev_fd" used for kernel-/user-mode notifications. Can I use it in a
non-blocking way? Specifically, would it work if I do the following:
1) fcntl(fd, ... | NONBLOCK);
2) ev.events = EPOLLIN;
epoll_ctl(..., EPOLL_CTL_ADD, fd, &ev);
If not, is there another way to achieve async notifications so that I
don't waste a thread?
TCMU uses uio for this, and uio supports this usage, yes.
Regards -- Andy
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