Re: du in ROOT

  :-)
perfect, thanks!
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 - 18:14:09 CET