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Re: Proposal for fixing IPC key assignment

From: Cyril VELTER <cyril(dot)velter(at)libertysurf(dot)fr>
To: pgsql-hackers(at)postgreSQL(dot)org
Subject: Re: Proposal for fixing IPC key assignment
Date: 2000-11-26 10:02:27
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
>We have to assign PGSEMMAGIC small enough to ensure that it won't fall
>foul of SEMVMX, but that probably isn't a big problem.  A more serious
>potential portability issue is that some implementations might not
>support the semctl(GETPID) operation (ie, get PID of last process that
>did a semop() on that semaphore).  It seems like a pretty basic part
>of the SysV semaphore functionality to me, but ...  Anyone know of any
>platforms where that's missing?

The beos SysV emulation does not support this call. But, as it's done today, 
adding it should be easy.


>			regards, tom lane

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