RE: du in ROOT

> :-)
> perfect, thanks!

Great, . . . . but what did you to achieve ;-) with the

   Int_t ciccio = (TUnixSystem*)GetFsInfo(...)

see your 5th statement.

It should be just

Int_t ciccio =
gSystem->GetFsInfo("/dev/hda4/",&id,&bsize,&blocks,&bfree)

Valeri

> chiara
>
>
> Fons Rademakers wrote:
> > Hi Chiara,
> >
> > don't use pointers ;-), but like this:
> >
> > root [0] Long_t id;
> > root [1] Long_t bsize;
> > root [2] Long_t blocks;
> > root [3] Long_t bfree;
> > root [4] Int_t ciccio =
> >

(TUnixSystem*)gSystem->GetFsInfo("/dev/hda4/",&id,&bsize,&blocks,&bfree)
> > root [5] bfree
> >
> > Cheers, Fons.
> >
> >
> >
> > Chiara Zampolli wrote:
> >> Hi Valeri,
> >>
> >> thanks a lot! I have tried in fact, but I don't get anything
back.
> >> Am i missing something? See below:
> >>
> >>
> >> zampolli_at_pcalice134:/home/zampolli/SOFT/AliRoot/AliRoot_NewTrunk>df
-h
> >> Filesystem Size Used Avail Use% Mounted on
> >> /dev/hda2 9.7G 7.5G 1.7G 82% /
> >> /dev/hda1 99M 23M 71M 25% /boot
> >> none 1013M 0 1013M 0% /dev/shm
> >> /dev/hda4 99G 42M 99G 1% /mnt/extra
> >> /dev/sda1 280G 46G 235G 17% /mnt/sata
> >> AFS 8.6G 0 8.6G 0% /afs
> >>
> >>

zampolli_at_pcalice134:/home/zampolli/SOFT/AliRoot/AliRoot_NewTrunk>root -
> l
> >>
> >> WELCOME to ALICE
> >>
> >> root [0] Long_t* id;
> >> root [1] Long_t* bsize;
> >> root [2] Long_t* blocks;
> >> root [3] Long_t* bfree;
> >> root [4] Int_t ciccio =
> >> (TUnixSystem*)gSystem->GetFsInfo("/dev/hda4/",id,bsize$
> >> root [5] ciccio
> >> (Int_t)(1)
> >> root [6]
> >> I have tried also to pass as the first argument the path of where
the
> >> file system is mounted, but in this case it crashes, see here.
> >> Thanks again,
> >>
> >> chiara
> >>
> >> ****
> >> root [0] Long_t* id;
> >> root [1] Long_t* bsize;
> >> root [2] Long_t* blocks;
> >> root [3] Long_t* bfree;
> >> root [4] Int_t ciccio =
> >> (TUnixSystem*)gSystem->GetFsInfo("/mnt/sata/",id,bsize$
> >>
> >> *** Break *** segmentation violation
> >> Using host libthread_db library "/lib/tls/libthread_db.so.1".
> >> Attaching to program: /proc/24812/exe, process 24812
> >> [Thread debugging using libthread_db enabled]
> >> [New Thread -1209039168 (LWP 24812)]
> >> 0x005de7a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
> >> #1 0x00682f13 in __waitpid_nocancel () from /lib/tls/libc.so.6
> >> #2 0x0062c7b9 in do_system () from /lib/tls/libc.so.6
> >> #3 0x0088298d in system () from /lib/tls/libpthread.so.0
> >> #4 0x00b25380 in TUnixSystem::Exec (this=0x87cf528,
> >> #5 0x00b25834 in TUnixSystem::StackTrace (this=0x87cf528)
> >> at core/unix/src/TUnixSystem.cxx:2121
> >> #6 0x00b23679 in TUnixSystem::DispatchSignals (this=0x87cf528,
> >> sig=kSigSegmentationViolation) at
core/unix/src/TUnixSystem.cxx:1089
> >> #7 0x00b21515 in SigHandler (sig=kSigSegmentationViolation)
> >> at core/unix/src/TUnixSystem.cxx:351
> >> #8 0x00b2858c in sighandler (sig=11) at
> >> core/unix/src/TUnixSystem.cxx:3344
> >> #9 <signal handler called>
> >> #10 0x00b29027 in TUnixSystem::UnixFSstat (path=0x8a2641c
"/mnt/sata/",
> >> id=0x0, bsize=0x0, blocks=0x0, bfree=0x0)
> >> at core/unix/src/TUnixSystem.cxx:3790
> >> #11 0x00b244c2 in TUnixSystem::GetFsInfo (this=0x87cf528,
> >> path=0x8a2641c "/mnt/sata/", id=0x0, bsize=0x0, blocks=0x0,
> >> bfree=0x0)
> >> at core/unix/src/TUnixSystem.cxx:1463
> >> #12 0x00c2c5c2 in G__G__Base2_221_0_89 ()
> >> ....
> >>
> >> Fine, Valeri wrote:
> >>> Check
> >>>
> >>> http://root.cern.ch/root/html/TSystem.html#TSystem:GetFsInfo
> >>>
> >>> Get info about a file system:
> >>> fs type, block size, number of blocks,
> >>> number of free blocks.
> >>>
> >>>

http://root.cern.ch/root/html/TUnixSystem.html#TUnixSystem:GetFsInfo
> >>>
> >>>
> >>> Best Regards
> >>> Valeri Fine
> >>> ---------------
> >>> Brookhaven National Laboratory
> >>> Upton, NY 11973, USA
> >>> Phone: +1 631 344 7806
> >>> Fax: +1 631 344 4206
> >>> E-mail: fine_at_bnl.gov
> >>>
> >>>
> >>>> -----Original Message-----
> >>>> From: owner-roottalk_at_root.cern.ch [mailto:owner-
> roottalk_at_root.cern.ch]
> >>>>
> >>> On
> >>>
> >>>> Behalf Of Chiara Zampolli
> >>>> Sent: Wednesday, November 26, 2008 10:29 AM
> >>>> To: Rene Brun
> >>>> Cc: Root
> >>>> Subject: Re: [ROOT] du in ROOT
> >>>>
> >>>> Hi Rene,
> >>>>
> >>>> yes, I know. I was wondering whether this was already
implemented
> >>>>
> >>> as
> >>>
> >>>> a method of some class, because what I would need is then to see
how
> >>>> much free space I have left (in percentage), which would mean to
call
> >>>> awk, but if you had something like GetDiskUsed() and
> >>>>
> >>> GetDiskAvailable(),
> >>>
> >>>> it would have been nicer...
> >>>> Thanks!
> >>>>
> >>>> c.
> >>>>
> >>>>
> >>>> Rene Brun wrote:
> >>>>
> >>>>> Chiara,
> >>>>>
> >>>>> You can always do:
> >>>>> gSystem->Exec("du . >du.log")
> >>>>>
> >>>>> Rene Brun
> >>>>>
> >>>>> Chiara Zampolli wrote:
> >>>>>
> >>>>>> Hi all,
> >>>>>>
> >>>>>> is there a way in ROOT to get the same information as those
one
> >>>>>> can get from the unix command du?
> >>>>>> Thanks and cheers,
> >>>>>>
> >>>>>> Chiara
> >>>>>>
> >>>>>>
> >>>
> >>>
> >>
> >
Received on Wed Nov 26 2008 - 18:33:41 CET