[metapost] Bug?

[luigi scarso]

On Thu, Dec 23, 2021 at 7:17 PM Pétiard François <petiard.francois at free.fr>
wrote:

> Le 23/12/2021 à 15:39, luigi scarso a écrit :
>
>
>
> On Thu, Dec 23, 2021 at 2:56 PM luigi scarso <luigi.scarso at gmail.com>
> wrote:
>
> I mean: it could be that makempx doesn't close the vf file correctly (so
>> yes, this is a bug).
>>
>>
> indeed , with a patch now I have
> # grep 'fopen' OUT2 | perl -pe 's{(.+: )([0-9a-z]+)( = fopen.+)$}{$2}'
> -|sort|uniq|nl|tail -1
>      1 0x563eca3cc830
>
>
> --
> luigi
>
> Sorry, I really don't understand what you do.
>

Under linux:
$> mpost -debug -tex=latex test.mp &> OUT
where test.mp is the first correct case .
I  see lots of  line like these  ones
makempx debug: ./mptextmp.mp: 0x5585feec9070 =
fopen(/opt/luatex/texlive/2021/texmf-dist/fonts/tfm/jknappen/ec/ecsx2488.tfm,"rb")
makempx debug: ./mptextmp.mp: 0x5585feec9070 =
fopen(/opt/luatex/texlive/2021/texmf-dist/fonts/tfm/public/cm/cmr17.tfm,"rb")
where 0x5585feec9070 seems to be always the same
Indeed, filtering OUT
$>grep 'fopen' OUT | perl -pe 's{(.+: )([0-9a-z]+)( = fopen.+)$}{$2}'
-|sort|uniq|nl|tail -1
I see one file open
1 0x5585feec9070

If now test.mp uses the kpfonts, I see  lots of lines like

makempx debug: ./mptextmp.mp: 0x55cea183e830 =
fopen(/opt/luatex/texlive/2021/texmf-dist/fonts/vf/public/kpfonts/jkpssbn8t.vf,"rb")
makempx debug: ./mptextmp.mp: 0x55cea1848840 =
fopen(/opt/luatex/texlive/2021/texmf-dist/fonts/tfm/public/kpfonts/jkpssbn8r.tfm,"rb")
makempx debug: ./mptextmp.mp: 0x55cea1848840 =
fopen(/opt/luatex/texlive/2021/texmf-dist/fonts/vf/public/kpfonts/jkpmn7t.vf,"rb")
makempx debug: ./mptextmp.mp: 0x55cea184d500 =
fopen(/opt/luatex/texlive/2021/texmf-dist/fonts/tfm/public/kpfonts/jkpmne.tfm,"rb")
makempx debug: ./mptextmp.mp: 0x55cea184d500 =
fopen(/opt/luatex/texlive/2021/texmf-dist/fonts/tfm/public/kpfonts/jkpmn8r.tfm,"rb")

but this time the numbers change:
$>grep 'fopen' OUT | perl -pe 's{(.+: )([0-9a-z]+)( = fopen.+)$}{$2}'
-|sort|uniq|nl|tail -1
1036 0x55cea68eee50
This means  that I have 1036 different file descriptors ( 0x55cea68eee50 is
just the last one of the list that I have sorted)
and  I have checked that these files were not correctly closed.
It's not a bug of miktex, it's a bug of mpost (that I have fixed): I don't
see it in linux because  I can have more than 1036 files open
(but this limit can be lowered  , so the problem remains).


-- 
luigi
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