Re: darwin pgsql patches - Mailing list pgsql-patches

From Peter Eisentraut
Subject Re: darwin pgsql patches
Date
Msg-id Pine.LNX.4.30.0012052247350.777-100000@peter.localdomain
Whole thread Raw
In response to Re: darwin pgsql patches  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-patches
Tom Lane writes:

> How efficient are POSIX semaphores, anyway?  I wonder if we couldn't
> also replace spinlocks with them...

There are POSIX spinlocks as well, though I haven't actually seen one...

> >    BTW, should I expect that POSIX also ignored the SysV IPC spec for
> >    shared memory?
>
> > Yes.  POSIX.1 standardizes mmap instead.
>
> Another TODO item I suppose :-(

It's already there.

--
Peter Eisentraut      peter_e@gmx.net       http://yi.org/peter-e/


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