On Tue, 8 Apr 2003, Alex van den Bogaerdt wrote:
> On Mon, Apr 07, 2003 at 09:27:47PM +0200, Hugo van der Kooij wrote:
>
> > Now the object is to make a CDEF string to return the following formula:
> >
> > if ( 0.8 < (used/size) <= 0.95 ) {
> > used+units
> > } else {
> > 0
> > )
> >
> > I settled for:
> >
> > CDEF:normal=used,size,/,$BUSY,LT,used,units,*,0,IF \
> > CDEF:temp=used,size,/,$BUSY,GT,used,0,IF \
> > CDEF:busy=used,size,/,$FULL,LT,temp,units,*,0,IF \
> > CDEF:full=used,size,/,$FULL,GT,used,units,*,0,IF \
> >
> > Where:
> > BUSY=0.8
> > FULL=0.95
>
> This is one of many possible solutions.
>
> I prefer something like:
>
> value=used,size,/
s/value/fraction/
> normal=value,$BUSY,LE,value,$BUSY,IF
> busy=value,$BUSY,GE,value,$FULL,LE,value,$FULL,IF,UN,IF
> full=value,$FULL,GE,value,UN,IF
Add ... value=used,units,*
> and then
>
> AREA:normal#00CC00
> STACK:busy#FFCC00
> FULL:full#FF0000
>
> Unless I made a mistake while thinking or typing, this should do:
>
> if value <= $BUSY
> then normal:=value
> else normal:=$BUSY
> if value >= $BUSY
> then if value <= $FULL
> then busy:=value
> else busy:=$FULL
> else busy=UNKNOWN
> if value >= $FULL
> then full:=value
> else full:=UNKNOWN
Should be:
if fraction <= $BUSY
then normal:=value
else normal:=$BUSY
if fraction >= $BUSY
then if fraction <= $FULL
then busy:=value
else busy:=$FULL
else busy=UNKNOWN
if fraction >= $FULL
then full:=value
else full:=UNKNOWN
The change is significant to make sure we do the right thing.
if (fraction != value) {
sleep Alex
} else {
sleep Hugo
}
Hugo.
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