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)
