Re: du in ROOT

Sure, this I did.... :-)
c.

Fons Rademakers wrote:
> 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
>>>>>>>>
>>>>>>>>
>>>>>
>>>>>
>>>>
>>>
>>
>
Received on Wed Nov 26 2008 - 18:18:45 CET