Re: lock in qnx rtp.

From: "Tegge, Bernd" <tegge(at)repas-aeg(dot)de>
To: "Leandro Medina" <lmedina(at)ingdesi(dot)com>
Cc: <pgsql-ports(at)postgresql(dot)org>
Subject: Re: lock in qnx rtp.
Date: 2001-05-31 07:49:47
Message-ID: 5.0.2.1.0.20010531094513.02019970@dragon.dr.repas.de
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Am 17:19 30.05.01 -0300 schrieb Leandro Medina:

>Hi Bernd,
> I find the solution for one problem, but others appear. Why spinlock
>doesn't works with FIFO or RR scheduling?

Sorry, I had a different implementation in mind, where spinlocks did not
sleep during the wait. Postgres spinlocks should be fine for RR and FIFO
scheduling.

>Thanks,
>
>Leandro Medina
>(Ingdesi Group - R&D)

>----- Original Message -----
>From: "Tegge, Bernd" <tegge(at)repas-aeg(dot)de>
>To: "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>; "Leandro Medina" <lmedina(at)ingdesi(dot)com>
>Cc: <pgsql-ports(at)postgresql(dot)org>
>Sent: Monday, May 28, 2001 6:37 AM
>Subject: Re: [PORTS] lock in qnx rtp.

<snip>

> >
> > - QNX (both versions) is a RTOS. If you were to use RR or FIFO
> > scheduling, spinlocks probably won't work.
> >

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