| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Magnus Hagander <magnus(at)hagander(dot)net> |
| Cc: | James Mansion <james(at)mansionfamily(dot)plus(dot)com>, Stephen Frost <sfrost(at)snowman(dot)net>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: POSIX shared memory support |
| Date: | 2008-03-31 20:11:38 |
| Message-ID: | 20441.1206994298@sss.pgh.pa.us |
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| Lists: | pgsql-hackers pgsql-patches |
Magnus Hagander <magnus(at)hagander(dot)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?
regards, tom lane
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