signalfd support

Charles Stepp
Mon Oct 15 20:57:00 GMT 2012

> Since the performance of Cygwin fifos is orders of magnitude poorer than the equivalent Linux implementation,  I've been trying to find an alternative to fifos in my Cygwin port.
> One possibility is to use a combination of real time signals (which queue) and
> signalfd to provide a select()'able interface to those signals.   Early test
> code on Linux shows promise.
> I did a quick check and it doesn't appear that Cygwin supports the signalfd
> (or eventfd) interface.   Are there any plans to include this?    If not what
> should I look at that Cygwin does support that could provide similar functionality?
> Thanks in advance for all your answers.
> bob
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I was thinking, "hmmm...shared memory...that's some fast stuff...", but

PC - ~ # ipcs -a
Bad system call

Oh well...our wonderful godlings who create this cygwin stuff for us can only make so much silk purse out of this Windoze pig.

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