| From: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
|---|---|
| To: | Dave Page <dpage(at)pgadmin(dot)org> |
| Cc: | Zeugswetter Andreas OSB sIT <Andreas(dot)Zeugswetter(at)s-itsolutions(dot)at>, Charlie Savage <cfis(at)savagexi(dot)com>, Magnus Hagander <magnus(at)hagander(dot)net>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: 8.3 .4 + Vista + MingW + initdb = ACCESS_DENIED |
| Date: | 2008-10-15 13:16:38 |
| Message-ID: | 48F5ED36.5000703@dunslane.net |
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| Thread: | |
| Lists: | pgsql-hackers |
Dave Page wrote:
>> The reason it should be in the Global namespace is that shmem is one part of
>> detecting an existing postmaster. Especially in situations where the db is started
>> by hand, the protection against duplicate startup is important.
>>
>
> Yeah, as Magnus reminded me.
>
IMNSHO we need to find a different exclusion mechanism that isn't as
cumbersome and surrounded by caveats as this one.
The buildfarm also uses an exclusion mechanism, based on Perl's flock(),
and it's a simple one line call. AFAIK that works just fine on Windows
(I will double check). If so, we should possibly look at how Perl does
that on Windows.
cheers
andrew
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