SIGCHLD race condition?

[Nicolas Williams]

How about:

 - selecting for exceptions -- remove dead fildeses from the read/write
   select masks (will this catch ptys where the child has close its
   stdio?)

 - if select() will be called only with the client connection socket,
   then the child must have closed its stdio -- either check wether the
   child is alive or add a timeout to the select() or plain and simply
   exit.

Nico


On Wed, Sep 26, 2001 at 10:30:42AM -0700, Paul Menage wrote:
> >
> >
> >On Wed, 26 Sep 2001, Paul Menage wrote:
> >
> >> - Switch to using queued signals for network readiness events, then use
> >> sigtimedwait() or similar instead of select(). I imagine that this would
> >> be a fairly major overhaul of the networking code.
> >>
> >
> >And how does one emulate sigtimedwait() for those older platforms that
> >lack it?  I don't remember seeing it listed in the NeXTStep manpages.
> 
> So scrap that idea then - it's more of a change than I'd think people
> would want anyway.
> 
> How about the pipe solution? That should be relatively portable.
> 
> Paul
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