Re: POSIX shared memory support

Tom Lane wrote:
> Magnus Hagander <magnus@hagander.net> writes:
> > James Mansion wrote:
> >> (confused) Why can't you use mmap of /dev/zero and inherit the fd
> >> into child processes?
> 
> > This is what we do on win32 today. We don't use the sysv emulation
> > layer anymore.
> 
> Did we ever find an interlock that makes the win32 implementation
> safe against the postmaster-dead-children-still-alive scenario?

Yes. I don't remember the details offhand (and I'm at the airport right
now), but the code that I put in there passed all those checks that we
could think of. (The one that the old, sysv emulating, code didn't as
well)

//Magnus