Messages in this thread | | | Date | Wed, 8 Mar 2006 18:00:40 -0800 (PST) | From | Davide Libenzi <> | Subject | Re: [patch] POLLRDHUP/EPOLLRDHUP handling for half-closed devices notifications ... |
| |
On Tue, 7 Mar 2006, Davide Libenzi wrote:
> > The attached patch against 2.6.16-rc5 implements the half-closed devices > notifiation, by adding a new POLLRDHUP (and its alias EPOLLRDHUP) bit to the > existing poll/select sets. Since the existing POLLHUP handling, that does not > report correctly half-closed devices, was feared to be changed, this > implementation leaves the current POLLHUP reporting unchanged and simply add > a new bit that is set in the few places where it makes sense. > The same thing was discussed and conceptually agreed quite some time ago: > > http://lkml.org/lkml/2003/7/12/116 > > Since this new event bit is added to the existing Linux poll infrastruture, > even the existing poll/select system calls will be able to use it. As far as > the existing POLLHUP handling, the patch leaves it as is. > The pollrdhup-2.6.16.rc5-0.10.diff defines the POLLRDHUP for all the existing > archs and sets the bit in the six relevant files. > The other attached diff is the simple change required to sys/epoll.h to add > the EPOLLRDHUP definition.
I just added a stupid program to test POLLRDHUP delivery here:
http://www.xmailserver.org/pollrdhup-test.c
It tests poll(2), but since the delivery is same epoll(2) will work equally.
- Davide
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |