EXPERIMENTAL: tevent_kqueue support

Stefan (metze) Metzmacher metze at samba.org
Tue Feb 26 13:39:16 MST 2013


Am 26.02.2013 20:53, schrieb Jeremy Allison:
> On Fri, Feb 22, 2013 at 08:46:31PM +0100, Stefan (metze) Metzmacher wrote:
>>
>> I spend the last days, fixing some bugs that made autobuild unstable
>> when we use the poll backend. (About 30-40 private autobuilds...)
>>
>> My current work in progress is available under
>> https://gitweb.samba.org/?p=metze/samba/wip.git;a=shortlog;h=refs/heads/master3-tevent2
>> and
>> https://gitweb.samba.org/?p=metze/samba/wip.git;a=shortlog;h=refs/heads/master4-tevent2
>>
>> I'll try to add some more tests which test the specific behaviors
>> regarding triggered events,
>> e.g. that an event without flags and remaining bytes in the socket
>> doesn't cause
>> a 100% cpu loop and similar things.
> 
> Ping ! Wonder where you are with this ? I have some OEMs
> that would like to see this finished so we can get the
> epoll fix into a winbindd release.
> 
> Is there anything more I can do to help ?

I'll try to propose a patchset for master tomorrow,
it would be good to get some feedback then.

In the meantime it would be good if you could take a look
at my comments to this:

TODO: Regression test to ensure that a tevent backend can cope with
separate read/write events on a single fd.
...
TODO: why (fde_wcount - fde_count < 256) ???
      if we get TEVENT_FD_WRITE we should not block
      we should also not read if we don't get TEVENT_FD_READ,
      because this will block.

https://gitweb.samba.org/?p=metze/samba/wip.git;a=commitdiff;h=610afde264816ece80fcdaca13d39ab3bf86c7b7

metze

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