And of course with the (TUnixSystem*) cast.
Cheers, Fons.
Chiara Zampolli wrote:
> :-)
> 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
>>>>>>>
>>>>>>>
>>>>
>>>>
>>>
>>
>
--
Org: CERN, European Laboratory for Particle Physics.
Mail: 1211 Geneve 23, Switzerland
E-Mail: Fons.Rademakers_at_cern.ch Phone: +41 22 7679248
WWW: http://fons.rademakers.org Fax: +41 22 7669640
Received on Wed Nov 26 2008 - 18:16:46 CET