The return of kevent?
Posted May 17, 2007 22:34 UTC (Thu) by slamb
In reply to: The return of kevent?
Parent article: The return of kevent?
His strange point about the poll vs read cancellation point, is just the latest
I feel some sympathy for Ulrich there. You have to realize that thread cancellation is a rather
poorly-described idea that the standards people said in a hand-wavy way was mandatory long
before anyone had a working implementation. People like Ulrich are stuck working out the details of
an actual working system, and traffic on the mailing lists shows that he's put a lot of effort
into it. I don't think his approach is right - he basically just enables async cancels around every
cancellation point, where a sigsafe-like way would make it possible to honor the cancellation if and
only if the system call has not yet returned - but it's not for lack of trying.
to post comments)