Date: Mon, 26 Aug 2002 17:04:04 -0700 From: Alfred Perlstein <bright@mu.org> To: Julian Elischer <julian@elischer.org> Cc: arch@freebsd.org Subject: Re: Process/thread states. Message-ID: <20020827000404.GM96154@elvis.mu.org> In-Reply-To: <Pine.BSF.4.21.0208261603020.83598-100000@InterJet.elischer.org> References: <Pine.BSF.4.21.0208261603020.83598-100000@InterJet.elischer.org>
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* Julian Elischer <julian@elischer.org> [020826 17:00] wrote:
>
> Ok so I've mentionned this to a few peopel at different times and not got
> any real feedback/pushback.. time fopr a wider audience.
...
> e.g. something like: (yeah I know its messy but...):
>
>
>
> #define TD_ST_SUSPQ 0x01 /* uses runq field */
> #define TD_ST_RUNQ 0x02 /* uses runq field */
> #define TD_ST_RUNNING 0x03 /* uses no (virtual) field */
> #define TD_ST_MTX 0x04 /* uses mtx field */
> #define TD_ST_RQ_MASK 0x07 /* mask of non sleep states */
> #define TD_ST_SLPQ 0x08 /* uses slpq field */
> enum thread_state {
> TDS_UNQUEUED = 0x00,
> TDS_SLP = TD_ST_SLPQ,
> TDS_RUNQ = TD_ST_RUNQ,
> TDS_RUNNING = TD_ST_RUNNING,
> TDS_SUSPENDED = TD_ST_SUSPQ,
> TDS_MTX = TD_ST_MTX,
> TDS_SUSP_SLP = TD_ST_SUSPQ|TD_ST_SLPQ,
> TDS_RUN_SLP = TD_ST_RUNNING|TD_ST_SLPQ,
> TDS_RUNQ_SLP = TD_ST_RUNQ|TD_ST_SLPQ,
> TDS_MTX_SLP = TD_ST_MTX|TD_ST_SLPQ,
> TDS_SWAPPING = TD_ST_SLPQ|TD_ST_RQ_MASK + 1,
> TDS_IWAIT, /* needed? */
> TDS_SURPLUS /* needed? */
> };
This seems good, another option would be to mostly expose things
through a functional interface, like proc_set_swapping() or something.
-Alfred
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