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Hello,
I am porting the iostat from FreeBSD.
I have problem with the function devstat_compute_statistics()
Here is how its used in FreeBSD ans I tried the compute_stats() in dragonfly
but still need this equivalent to be correct
So, please give me the correct usage of compute_stats similar to
devstat_compute_statistics in the FreeBSD, here it is:
if (devstat_compute_statistics
<http://fxr.googlebit.com/ident?i=devstat_compute_statistics>(&cur
<http://fxr.googlebit.com/ident?i=cur>.dinfo
<http://fxr.googlebit.com/ident?i=dinfo>->devices
<http://fxr.googlebit.com/ident?i=devices>[di
<http://fxr.googlebit.com/ident?i=di>],
&last <http://fxr.googlebit.com/ident?i=last>.dinfo
<http://fxr.googlebit.com/ident?i=dinfo>->devices
<http://fxr.googlebit.com/ident?i=devices>[di
<http://fxr.googlebit.com/ident?i=di>], busy_seconds,
DSM_KB_PER_TRANSFER, &kb_per_transfer,
DSM_TRANSFERS_PER_SECOND, &transfers_per_second,
DSM_MB_PER_SECOND, &mb_per_second, DSM_NONE) != 0)
errx <http://fxr.googlebit.com/ident?i=errx>(1,
*"%s"*, devstat_errbuf
<http://fxr.googlebit.com/ident?i=devstat_errbuf>);
Also, is it OK if we call getnumdevs() without any arguments (its
similar to freebsd devstat_getdevs()).
The FreeBSD uses:
switch (devstat_getdevs
<http://fxr.googlebit.com/ident?i=devstat_getdevs>(NULL
<http://fxr.googlebit.com/ident?i=NULL>, &cur
<http://fxr.googlebit.com/ident?i=cur>)) {
case -1:
errx <http://fxr.googlebit.com/ident?i=errx>(1,
*"%s"*, devstat_errbuf
<http://fxr.googlebit.com/ident?i=devstat_errbuf>);
break;
case 1:
cmdiostat
<http://fxr.googlebit.com/ident?i=cmdiostat>(*"refresh"*, NULL
<http://fxr.googlebit.com/ident?i=NULL>);
break;
default:
break;
}
I am still trying to remove some warnings and error. Will mail you if
need more help.
pratyush.kshirsagar (@ gmail.com)
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Hello,<div>I am porting the iostat from FreeBSD.</div><div>I have problem w=
ith the function devstat_compute_statistics()</div><div>Here is how its use=
d in FreeBSD ans I tried the compute_stats() in dragonfly but still need th=
is equivalent to be correct</div>
<div>So, please give me the correct usage of compute_stats similar to devst=
at_compute_statistics in=A0the FreeBSD, here it is:</div><div><meta http-eq=
uiv=3D"content-type" content=3D"text/html; charset=3Dutf-8"><span class=3D"=
Apple-style-span" style=3D"font-family: 'Times New Roman'; "><pre>
if (<a href=3D"http://fxr.googlebit.com/ident?i=3Ddevstat_compute_s=
tatistics">devstat_compute_statistics</a>(&<a href=3D"http://fxr.google=
bit.com/ident?i=3Dcur">cur</a>.<a href=3D"http://fxr.googlebit.com/ident?i=
=3Ddinfo">dinfo</a>-><a href=3D"http://fxr.googlebit.com/ident?i=3Ddevic=
es">devices</a>[<a href=3D"http://fxr.googlebit.com/ident?i=3Ddi">di</a>],
&<a href=3D"http://fxr.googlebit.com/ident?i=3Dlast">last<=
/a>.<a href=3D"http://fxr.googlebit.com/ident?i=3Ddinfo">dinfo</a>-><a h=
ref=3D"http://fxr.googlebit.com/ident?i=3Ddevices">devices</a>[<a href=3D"h=
ttp://fxr.googlebit.com/ident?i=3Ddi">di</a>], busy_seconds,
DSM_KB_PER_TRANSFER, &kb_per_transfer,
DSM_TRANSFERS_PER_SECOND, &transfers_per_second,
DSM_MB_PER_SECOND, &mb_per_second, DSM_NONE) !=3D 0)
<a href=3D"http://fxr.googlebit.com/ident?i=3Derrx">errx</=
a>(1, <i>"%s"</i>, <a href=3D"http://fxr.googlebit.com/ident?i=3D=
devstat_errbuf">devstat_errbuf</a>);</pre><pre><br></pre><pre>Also, is it O=
K if we call getnumdevs() without any arguments (its similar to freebsd dev=
stat_getdevs()).</pre>
<pre>The FreeBSD uses:</pre><pre><meta http-equiv=3D"content-type" content=
=3D"text/html; charset=3Dutf-8"><span class=3D"Apple-style-span" style=3D"f=
ont-family: 'Times New Roman'; white-space: normal; "><pre>switch (=
<a href=3D"http://fxr.googlebit.com/ident?i=3Ddevstat_getdevs">devstat_getd=
evs</a>(<a href=3D"http://fxr.googlebit.com/ident?i=3DNULL">NULL</a>, &=
<a href=3D"http://fxr.googlebit.com/ident?i=3Dcur">cur</a>)) {
case -1:
<a href=3D"http://fxr.googlebit.com/ident?i=3Derrx">errx</a=
>(1, <i>"%s"</i>, <a href=3D"http://fxr.googlebit.com/ident?i=3Dd=
evstat_errbuf">devstat_errbuf</a>);
break;
case 1:
<a href=3D"http://fxr.googlebit.com/ident?i=3Dcmdiostat">c=
mdiostat</a>(<i>"refresh"</i>, <a href=3D"http://fxr.googlebit.co=
m/ident?i=3DNULL">NULL</a>);
break;
default:
break;
}</pre><pre><br></pre><pre>I am still trying to remove some warnings and e=
rror. Will mail you if need more help.</pre><pre><br></pre><pre>pratyush.ks=
hirsagar (@ <a href=3D"http://gmail.com">gmail.com</a>)</pre><pre><br></pre=
>
</span></pre></span></div>
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