Re: POSIX shared memory support

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
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
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

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Andrew Dunstan 2008-03-31 20:18:36 Re: pgkill
Previous Message Magnus Hagander 2008-03-31 20:07:57 Re: POSIX shared memory support

Browse pgsql-patches by date

  From Date Subject
Next Message Heikki Linnakangas 2008-03-31 20:14:53 Re: Ordered Append WIP patch v1
Previous Message Magnus Hagander 2008-03-31 20:07:57 Re: POSIX shared memory support