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Re: (ITS#6300) Add kqueue support to slapd

bduncan@apple.com wrote:
> On Sep 22, 2009, at 1:02 PM, Quanah Gibson-Mount wrote:
>> --On Tuesday, September 22, 2009 7:23 PM +0000 bduncan@apple.com
>> wrote:
>>> Subject should have been: "PATCH - Added kqueue support to slapd" to
>>> make clear this ITS tracks a patch that has been submitted.
>> What OS(es) has this kqueue support been tested with?  For example,
>> the last time I looked at kqueue on OSX 10.5, it was very marginal,
>> and missing most of the important pieces, which meant it wouldn't
>> work for OpenLDAP or Postfix, etc.
> It was tested on OS X 10.6.  Should work on all BSDs; nothing OSX-
> specific about the kqueue usage in the patch.  As far as kqueue
> support in OS X 10.5, from what I see, most everything is there.
> Certainly all of the kqueue features in this patch are supported in OS
> X 10.5.

To expand on this: there are a lot of comments around the web that kqueue was 
fairly broken at least up to 10.5. E.g. this:


Since we also use a pipe for the wake_sds[] in our event loop, if kqueue only 
supports sockets, then it cannot be used reliably in slapd.

   -- Howard Chu
   CTO, Symas Corp.           http://www.symas.com
   Director, Highland Sun     http://highlandsun.com/hyc/
   Chief Architect, OpenLDAP  http://www.openldap.org/project/