Re: [rfc] epoll interface change and glibc bits ...

From: Mark Mielke (mark@mark.mielke.cc)
Date: Tue Nov 19 2002 - 01:22:05 EST


On Tue, Nov 19, 2002 at 12:49:16AM -0500, Grant Taylor wrote:
> For example, sometimes TCP reads return EAGAIN when in fact they have
> data. This seems to stem from the case where the signal is found
> before the first segment copy (from tcp.c circa 1425, there's even a
> handy FIXME note there). If you use epoll and get an EAGAIN, you have
> no idea if it was a signal or a real empty socket unless you are also
> very careful to notice when you got a signal during the read.

I hope this isn't a stupid question: Why doesn't the code you speak of
return EINTR instead of EAGAIN?

mark

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