[u/mrichter/AliRoot.git] / RAW / AliRawDB.cxx

// @(#)alimdc:$Name$:$Id$
// Author: Fons Rademakers  26/11/99

/**************************************************************************
 * Copyright(c) 1998-2003, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

//////////////////////////////////////////////////////////////////////////
//                                                                      //
// AliRawDB                                                             //
//                                                                      //
//////////////////////////////////////////////////////////////////////////

#include <errno.h>

#include <TSystem.h>
#include <TKey.h>

#include "AliESD.h"
#include "AliRawEvent.h"
#include "AliRawEventHeaderBase.h"
#include "AliStats.h"

#include "AliRawDB.h"


ClassImp(AliRawDB)

const char *AliRawDB::fgkAliRootTag = "$Name$";

//______________________________________________________________________________
AliRawDB::AliRawDB(AliRawEvent *event,
		   AliESD *esd, 
		   Int_t compress,
                   const char* fileName) :
  fRawDB(NULL),
  fTree(NULL),
  fEvent(event),
  fESDTree(NULL),
  fESD(esd),
  fCompress(compress),
  fMaxSize(-1),
  fFS1(""),
  fFS2(""),
  fDeleteFiles(kFALSE),
  fStop(kFALSE)
{
   // Create a new raw DB

   if (fileName) {
      if (!Create(fileName))
         MakeZombie();
   }
}

//______________________________________________________________________________
Bool_t AliRawDB::FSHasSpace(const char *fs) const
{
   // Check for at least fMaxSize bytes of free space on the file system.
   // If the space is not available return kFALSE, kTRUE otherwise.

   Long_t id, bsize, blocks, bfree;

   if (gSystem->GetFsInfo(fs, &id, &bsize, &blocks, &bfree) == 1) {
      Error("FSHasSpace", "could not stat file system %s", fs);
      return kFALSE;
   }

   // Leave 5 percent of diskspace free
   Double_t avail = Double_t(bfree) * 0.95;
   if (avail*bsize > fMaxSize)
      return kTRUE;

   Warning("FSHasSpace", "no space on file system %s", fs);
   return kFALSE;
}

//______________________________________________________________________________
const char *AliRawDB::GetFileName() const
{
   // Return filename based on hostname and date and time. This will make
   // each file unique. Also makes sure (via FSHasSpace()) that there is
   // enough space on the file system to store the file. Returns 0 in
   // case of error or interrupt signal.

   static TString fname;
   static Bool_t  fstoggle = kFALSE;

   TString fs = fstoggle ? fFS2 : fFS1;
   TDatime dt;

   TString hostname = gSystem->HostName();
   Int_t pos;
   if ((pos = hostname.Index(".")) != kNPOS)
      hostname.Remove(pos);

   if (!FSHasSpace(fs)) {
      while (1) {
         fstoggle = !fstoggle;
         fs = fstoggle ? fFS2 : fFS1;
         if (FSHasSpace(fs)) break;
         Info("GetFileName", "sleeping 30 seconds before retrying...");
         gSystem->Sleep(30000);   // sleep for 30 seconds
         if (fStop) return 0;
      }
   }

   fname = fs + "/" + hostname + "_";
   fname += dt.GetDate();
   fname += "_";
   fname += dt.GetTime();
   fname += ".root";

   fstoggle = !fstoggle;

   return fname;
}

//______________________________________________________________________________
void AliRawDB::SetFS(const char* fs1, const char* fs2)
{
// set the file system location

  fFS1 = fs1;
  if (fs1 && !fFS1.Contains(":")) {
    gSystem->ResetErrno();
    gSystem->MakeDirectory(fs1);
    if (gSystem->GetErrno() && gSystem->GetErrno() != EEXIST) {
      SysError("SetFS", "mkdir %s", fs1);
    }
  }

  fFS2 = fs2;
  if (fs2) {
    gSystem->ResetErrno();
    gSystem->MakeDirectory(fs2);
    if (gSystem->GetErrno() && gSystem->GetErrno() != EEXIST) {
      SysError("SetFS", "mkdir %s", fs2);
    }
  }
}

//______________________________________________________________________________
Bool_t AliRawDB::Create(const char* fileName)
{
   // Create a new raw DB.

   const Int_t kMaxRetry = 1;
   const Int_t kMaxSleep = 1;      // seconds
   const Int_t kMaxSleepLong = 10; // seconds
   Int_t retry = 0;

again:
   if (fStop) return kFALSE;

   const char *fname = fileName;
   if (!fname) fname = GetFileName();
   if (!fname) {
      Error("Create", "error getting raw DB file name");
      return kFALSE;
   }

   retry++;

   fRawDB = TFile::Open(fname, GetOpenOption(),
			Form("ALICE raw-data file (%s)", GetAliRootTag()), fCompress,
			GetNetopt());
   if (!fRawDB) {
      if (retry < kMaxRetry) {
         Warning("Create", "failure to open file, sleeping %d %s before retrying...",
                 kMaxSleep, kMaxSleep==1 ? "second" : "seconds");
         gSystem->Sleep(kMaxSleep*1000);
         goto again;
      }
      Error("Create", "failure to open file %s after %d tries", fname, kMaxRetry);
      return kFALSE;
   }
   if (retry > 1)
      Warning("Create", "succeeded to open file after %d retries", retry);

   if (fRawDB->IsZombie()) {
      if (fRawDB->GetErrno() == ENOSPC ||
          fRawDB->GetErrno() == 1018   ||   // SECOMERR
          fRawDB->GetErrno() == 1027) {     // SESYSERR
         fRawDB->ResetErrno();
         delete fRawDB;
         Warning("Create", "file is a zombie (no space), sleeping %d %s before retrying...",
                 kMaxSleepLong, kMaxSleepLong==1 ? "second" : "seconds");
         gSystem->Sleep(kMaxSleepLong*1000);   // sleep 10 seconds before retrying
         goto again;
      }
      Error("Create", "file %s is zombie", fname);
      fRawDB->ResetErrno();
      delete fRawDB;
      fRawDB = 0;
      if (retry < kMaxRetry) {
         Warning("Create", "file is a zombie, sleeping %d %s before retrying...",
                 kMaxSleep, kMaxSleep==1 ? "second" : "seconds");
         gSystem->Sleep(kMaxSleep*1000);
         goto again;
      }
      Error("Create", "failure to open file %s after %d tries", fname, kMaxRetry);
      return kFALSE;
   }

   // Create raw data TTree
   MakeTree();

   return kTRUE;
}

//______________________________________________________________________________
void AliRawDB::MakeTree()
{
   // Create ROOT Tree object container.

   fTree = new TTree("RAW", Form("ALICE raw-data tree (%s)", GetAliRootTag()));
   fTree->SetAutoSave(2000000000);  // autosave when 2 Gbyte written

   Int_t bufsize = 256000;
   // splitting 29.6 MB/s, no splitting 35.3 MB/s on P4 2GHz 15k SCSI
   //Int_t split   = 1;
   Int_t split   = 0;
   fTree->Branch("rawevent", "AliRawEvent", &fEvent, bufsize, split);

   // Create tree which will contain the HLT ESD information

   if (fESD) {
     fESDTree = new TTree("esdTree", Form("ALICE HLT ESD tree (%s)", GetAliRootTag()));
     fESDTree->SetAutoSave(2000000000);  // autosave when 2 Gbyte written
     split   = 0;
     fESDTree->Branch("ESD", "AliESD", &fESD, bufsize, split);
   }

}

//______________________________________________________________________________
Int_t AliRawDB::Close()
{
   // Close raw DB.
   if (!fRawDB) return 0;

   if (!fRawDB->IsOpen()) return 0;

   fRawDB->cd();

   // Write the tree.
   Bool_t error = kFALSE;
   if (fTree->Write() == 0)
     error = kTRUE;
   if (fESDTree)
     if (fESDTree->Write() == 0)
       error = kTRUE;

   // Close DB, this also deletes the fTree
   fRawDB->Close();

   Int_t filesize = fRawDB->GetEND();

   if (fDeleteFiles) {
      gSystem->Unlink(fRawDB->GetName());
      delete fRawDB;
      fRawDB = 0;
      if(!error)
	return filesize;
      else
	return -1;
   }

   delete fRawDB;
   fRawDB = 0;
   if(!error)
     return filesize;
   else
     return -1;
}

//______________________________________________________________________________
Int_t AliRawDB::Fill()
{
   // Fill the trees and return the number of written bytes

   Double_t bytes = fRawDB->GetBytesWritten();
   Bool_t error = kFALSE;
   if (fTree->Fill() == -1)
     error = kTRUE;
   if (fESDTree) 
     if (fESDTree->Fill() == -1)
       error = kTRUE;
   if(!error)
     return Int_t(fRawDB->GetBytesWritten() - bytes);
   else
     return -1;
}

//______________________________________________________________________________
Int_t AliRawDB::GetTotalSize()
{
   // Return the total size of the trees
  Int_t total = 0;

  {
    Int_t skey = 0;
    TDirectory *dir = fTree->GetDirectory();
    if (dir) {
      TKey *key = dir->GetKey(fTree->GetName());
      if (key) skey = key->GetKeylen();
    }
    total += skey;
    if (fTree->GetZipBytes() > 0) total += fTree->GetTotBytes();
    TBuffer b(TBuffer::kWrite,10000);
    TTree::Class()->WriteBuffer(b,fTree);
    total += b.Length();
  }

  if(fESDTree)
    {
      Int_t skey = 0;
      TDirectory *dir = fESDTree->GetDirectory();
      if (dir) {
	TKey *key = dir->GetKey(fESDTree->GetName());
	if (key) skey = key->GetKeylen();
      }
      total += skey;
      if (fESDTree->GetZipBytes() > 0) total += fESDTree->GetTotBytes();
      TBuffer b(TBuffer::kWrite,10000);
      TTree::Class()->WriteBuffer(b,fESDTree);
      total += b.Length();
    }

  return total;
}

//______________________________________________________________________________
void AliRawDB::WriteStats(AliStats* stats)
{
   // Write stats to raw DB, local run DB and global MySQL DB.

   AliRawEventHeaderBase &header = *GetEvent()->GetHeader();

   // Write stats into RawDB
   TDirectory *ds = gDirectory;
   GetDB()->cd();
   stats->SetEvents(GetEvents());
   stats->SetLastId(header.Get("RunNb"), header.GetP("Id")[0]);
   stats->SetFileSize(GetBytesWritten());
   stats->SetCompressionFactor(GetCompressionFactor());
   stats->SetEndTime();
   stats->Write("stats");
   ds->cd();
}

//______________________________________________________________________________
Bool_t AliRawDB::NextFile(const char* fileName)
{
   // Close te current file and open a new one.
   // Returns kFALSE in case opening failed.

   Close();

   if (!Create(fileName)) return kFALSE;
   return kTRUE;
}

//______________________________________________________________________________
Float_t AliRawDB::GetCompressionFactor() const
{
   // Return compression factor.

   if (fTree->GetZipBytes() == 0.)
      return 1.0;
   else
      return fTree->GetTotBytes()/fTree->GetZipBytes();
}

//______________________________________________________________________________
const char *AliRawDB::GetAliRootTag()
{
  // Return the aliroot tag (version)
  // used to generate the raw data file.
  // Stored in the raw-data file title.

  TString version = fgkAliRootTag;
  version.Remove(TString::kBoth,'$');
  version.ReplaceAll("Name","AliRoot version");

  return version.Data();
}
Commit	Line	Data
a197a4ce	1	// @(#)alimdc:$Name$:$Id$
	2	// Author: Fons Rademakers 26/11/99
	3
	4	/**************************************************************************
	5	* Copyright(c) 1998-2003, ALICE Experiment at CERN, All rights reserved. *
	6	* *
	7	* Author: The ALICE Off-line Project. *
	8	* Contributors are mentioned in the code where appropriate. *
	9	* *
	10	* Permission to use, copy, modify and distribute this software and its *
	11	* documentation strictly for non-commercial purposes is hereby granted *
	12	* without fee, provided that the above copyright notice appears in all *
	13	* copies and that both the copyright notice and this permission notice *
	14	* appear in the supporting documentation. The authors make no claims *
	15	* about the suitability of this software for any purpose. It is *
	16	* provided "as is" without express or implied warranty. *
	17	**************************************************************************/
	18
	19	//////////////////////////////////////////////////////////////////////////
	20	// //
	21	// AliRawDB //
	22	// //
	23	//////////////////////////////////////////////////////////////////////////
	24
	25	#include <errno.h>
	26
	27	#include <TSystem.h>
d21e9888	28	#include <TKey.h>
a197a4ce	29
52f36b9b	30	#include "AliESD.h"
a197a4ce	31	#include "AliRawEvent.h"
f2dc6b20	32	#include "AliRawEventHeaderBase.h"
b7d09bb3	33	#include "AliStats.h"
a109e73e	34
a197a4ce	35	#include "AliRawDB.h"
	36
	37
	38	ClassImp(AliRawDB)
	39
ee8f2a6c	40	const char *AliRawDB::fgkAliRootTag = "$Name$";
a197a4ce	41
a197a4ce	42	//______________________________________________________________________________
a109e73e	43	AliRawDB::AliRawDB(AliRawEvent *event,
a109e73e	44	AliESD *esd,
e10815f1	45	Int_t compress,
	46	const char* fileName) :
	47	fRawDB(NULL),
	48	fTree(NULL),
	49	fEvent(event),
	50	fESDTree(NULL),
	51	fESD(esd),
	52	fCompress(compress),
	53	fMaxSize(-1),
	54	fFS1(""),
	55	fFS2(""),
	56	fDeleteFiles(kFALSE),
	57	fStop(kFALSE)
a197a4ce	58	{
e10815f1	59	// Create a new raw DB
a197a4ce	60
e10815f1	61	if (fileName) {
e10815f1	62	if (!Create(fileName))
a197a4ce	63	MakeZombie();
	64	}
	65	}
	66
a197a4ce	67	//______________________________________________________________________________
	68	Bool_t AliRawDB::FSHasSpace(const char *fs) const
	69	{
	70	// Check for at least fMaxSize bytes of free space on the file system.
	71	// If the space is not available return kFALSE, kTRUE otherwise.
	72
	73	Long_t id, bsize, blocks, bfree;
	74
	75	if (gSystem->GetFsInfo(fs, &id, &bsize, &blocks, &bfree) == 1) {
	76	Error("FSHasSpace", "could not stat file system %s", fs);
	77	return kFALSE;
	78	}
	79
	80	// Leave 5 percent of diskspace free
	81	Double_t avail = Double_t(bfree) * 0.95;
	82	if (avail*bsize > fMaxSize)
	83	return kTRUE;
	84
	85	Warning("FSHasSpace", "no space on file system %s", fs);
	86	return kFALSE;
	87	}
	88
	89	//______________________________________________________________________________
	90	const char *AliRawDB::GetFileName() const
	91	{
	92	// Return filename based on hostname and date and time. This will make
	93	// each file unique. Also makes sure (via FSHasSpace()) that there is
	94	// enough space on the file system to store the file. Returns 0 in
	95	// case of error or interrupt signal.
	96
	97	static TString fname;
	98	static Bool_t fstoggle = kFALSE;
	99
e10815f1	100	TString fs = fstoggle ? fFS2 : fFS1;
a197a4ce	101	TDatime dt;
	102
	103	TString hostname = gSystem->HostName();
	104	Int_t pos;
	105	if ((pos = hostname.Index(".")) != kNPOS)
	106	hostname.Remove(pos);
	107
	108	if (!FSHasSpace(fs)) {
	109	while (1) {
	110	fstoggle = !fstoggle;
e10815f1	111	fs = fstoggle ? fFS2 : fFS1;
a197a4ce	112	if (FSHasSpace(fs)) break;
	113	Info("GetFileName", "sleeping 30 seconds before retrying...");
	114	gSystem->Sleep(30000); // sleep for 30 seconds
e10815f1	115	if (fStop) return 0;
a197a4ce	116	}
	117	}
	118
	119	fname = fs + "/" + hostname + "_";
	120	fname += dt.GetDate();
	121	fname += "_";
	122	fname += dt.GetTime();
	123	fname += ".root";
	124
	125	fstoggle = !fstoggle;
	126
	127	return fname;
	128	}
	129
	130	//______________________________________________________________________________
e10815f1	131	void AliRawDB::SetFS(const char* fs1, const char* fs2)
	132	{
	133	// set the file system location
	134
	135	fFS1 = fs1;
	136	if (fs1 && !fFS1.Contains(":")) {
	137	gSystem->ResetErrno();
	138	gSystem->MakeDirectory(fs1);
	139	if (gSystem->GetErrno() && gSystem->GetErrno() != EEXIST) {
	140	SysError("SetFS", "mkdir %s", fs1);
	141	}
	142	}
	143
	144	fFS2 = fs2;
	145	if (fs2) {
	146	gSystem->ResetErrno();
	147	gSystem->MakeDirectory(fs2);
	148	if (gSystem->GetErrno() && gSystem->GetErrno() != EEXIST) {
	149	SysError("SetFS", "mkdir %s", fs2);
	150	}
	151	}
	152	}
	153
	154	//______________________________________________________________________________
	155	Bool_t AliRawDB::Create(const char* fileName)
a197a4ce	156	{
	157	// Create a new raw DB.
	158
f07ec911	159	const Int_t kMaxRetry = 1;
a197a4ce	160	const Int_t kMaxSleep = 1; // seconds
	161	const Int_t kMaxSleepLong = 10; // seconds
	162	Int_t retry = 0;
	163
	164	again:
e10815f1	165	if (fStop) return kFALSE;
a197a4ce	166
e10815f1	167	const char *fname = fileName;
e10815f1	168	if (!fname) fname = GetFileName();
a197a4ce	169	if (!fname) {
	170	Error("Create", "error getting raw DB file name");
	171	return kFALSE;
	172	}
	173
	174	retry++;
	175
	176	fRawDB = TFile::Open(fname, GetOpenOption(),
ee8f2a6c	177	Form("ALICE raw-data file (%s)", GetAliRootTag()), fCompress,
f07ec911	178	GetNetopt());
a197a4ce	179	if (!fRawDB) {
	180	if (retry < kMaxRetry) {
	181	Warning("Create", "failure to open file, sleeping %d %s before retrying...",
	182	kMaxSleep, kMaxSleep==1 ? "second" : "seconds");
	183	gSystem->Sleep(kMaxSleep*1000);
	184	goto again;
	185	}
	186	Error("Create", "failure to open file %s after %d tries", fname, kMaxRetry);
	187	return kFALSE;
	188	}
	189	if (retry > 1)
	190	Warning("Create", "succeeded to open file after %d retries", retry);
	191
	192	if (fRawDB->IsZombie()) {
	193	if (fRawDB->GetErrno() == ENOSPC \|\|
	194	fRawDB->GetErrno() == 1018 \|\| // SECOMERR
	195	fRawDB->GetErrno() == 1027) { // SESYSERR
	196	fRawDB->ResetErrno();
	197	delete fRawDB;
	198	Warning("Create", "file is a zombie (no space), sleeping %d %s before retrying...",
	199	kMaxSleepLong, kMaxSleepLong==1 ? "second" : "seconds");
	200	gSystem->Sleep(kMaxSleepLong*1000); // sleep 10 seconds before retrying
	201	goto again;
	202	}
	203	Error("Create", "file %s is zombie", fname);
	204	fRawDB->ResetErrno();
	205	delete fRawDB;
	206	fRawDB = 0;
	207	if (retry < kMaxRetry) {
	208	Warning("Create", "file is a zombie, sleeping %d %s before retrying...",
	209	kMaxSleep, kMaxSleep==1 ? "second" : "seconds");
	210	gSystem->Sleep(kMaxSleep*1000);
	211	goto again;
	212	}
	213	Error("Create", "failure to open file %s after %d tries", fname, kMaxRetry);
	214	return kFALSE;
	215	}
	216
	217	// Create raw data TTree
	218	MakeTree();
	219
	220	return kTRUE;
	221	}
	222
	223	//______________________________________________________________________________
	224	void AliRawDB::MakeTree()
	225	{
	226	// Create ROOT Tree object container.
	227
ee8f2a6c	228	fTree = new TTree("RAW", Form("ALICE raw-data tree (%s)", GetAliRootTag()));
a197a4ce	229	fTree->SetAutoSave(2000000000); // autosave when 2 Gbyte written
	230
	231	Int_t bufsize = 256000;
	232	// splitting 29.6 MB/s, no splitting 35.3 MB/s on P4 2GHz 15k SCSI
	233	//Int_t split = 1;
	234	Int_t split = 0;
	235	fTree->Branch("rawevent", "AliRawEvent", &fEvent, bufsize, split);
a109e73e	236
a109e73e	237	// Create tree which will contain the HLT ESD information
a109e73e	238
e10815f1	239	if (fESD) {
ee8f2a6c	240	fESDTree = new TTree("esdTree", Form("ALICE HLT ESD tree (%s)", GetAliRootTag()));
e10815f1	241	fESDTree->SetAutoSave(2000000000); // autosave when 2 Gbyte written
5f42007f	242	split = 0;
e10815f1	243	fESDTree->Branch("ESD", "AliESD", &fESD, bufsize, split);
e10815f1	244	}
a109e73e	245
a197a4ce	246	}
	247
	248	//______________________________________________________________________________
f07ec911	249	Int_t AliRawDB::Close()
a197a4ce	250	{
a197a4ce	251	// Close raw DB.
f07ec911	252	if (!fRawDB) return 0;
a197a4ce	253
f07ec911	254	if (!fRawDB->IsOpen()) return 0;
a197a4ce	255
	256	fRawDB->cd();
	257
	258	// Write the tree.
f07ec911	259	Bool_t error = kFALSE;
	260	if (fTree->Write() == 0)
	261	error = kTRUE;
	262	if (fESDTree)
	263	if (fESDTree->Write() == 0)
	264	error = kTRUE;
a197a4ce	265
	266	// Close DB, this also deletes the fTree
	267	fRawDB->Close();
	268
f07ec911	269	Int_t filesize = fRawDB->GetEND();
f07ec911	270
e10815f1	271	if (fDeleteFiles) {
a197a4ce	272	gSystem->Unlink(fRawDB->GetName());
	273	delete fRawDB;
	274	fRawDB = 0;
f07ec911	275	if(!error)
	276	return filesize;
	277	else
	278	return -1;
a197a4ce	279	}
a197a4ce	280
a197a4ce	281	delete fRawDB;
a197a4ce	282	fRawDB = 0;
f07ec911	283	if(!error)
	284	return filesize;
	285	else
	286	return -1;
a197a4ce	287	}
a197a4ce	288
e10815f1	289	//______________________________________________________________________________
	290	Int_t AliRawDB::Fill()
	291	{
	292	// Fill the trees and return the number of written bytes
	293
	294	Double_t bytes = fRawDB->GetBytesWritten();
f07ec911	295	Bool_t error = kFALSE;
	296	if (fTree->Fill() == -1)
	297	error = kTRUE;
	298	if (fESDTree)
	299	if (fESDTree->Fill() == -1)
	300	error = kTRUE;
	301	if(!error)
	302	return Int_t(fRawDB->GetBytesWritten() - bytes);
	303	else
	304	return -1;
e10815f1	305	}
e10815f1	306
d21e9888	307	//______________________________________________________________________________
	308	Int_t AliRawDB::GetTotalSize()
	309	{
	310	// Return the total size of the trees
	311	Int_t total = 0;
	312
	313	{
	314	Int_t skey = 0;
	315	TDirectory *dir = fTree->GetDirectory();
	316	if (dir) {
	317	TKey *key = dir->GetKey(fTree->GetName());
	318	if (key) skey = key->GetKeylen();
	319	}
	320	total += skey;
	321	if (fTree->GetZipBytes() > 0) total += fTree->GetTotBytes();
	322	TBuffer b(TBuffer::kWrite,10000);
	323	TTree::Class()->WriteBuffer(b,fTree);
	324	total += b.Length();
	325	}
	326
	327	if(fESDTree)
	328	{
	329	Int_t skey = 0;
	330	TDirectory *dir = fESDTree->GetDirectory();
	331	if (dir) {
	332	TKey *key = dir->GetKey(fESDTree->GetName());
	333	if (key) skey = key->GetKeylen();
	334	}
	335	total += skey;
	336	if (fESDTree->GetZipBytes() > 0) total += fESDTree->GetTotBytes();
	337	TBuffer b(TBuffer::kWrite,10000);
	338	TTree::Class()->WriteBuffer(b,fESDTree);
	339	total += b.Length();
	340	}
	341
	342	return total;
	343	}
	344
b7d09bb3	345	//______________________________________________________________________________
	346	void AliRawDB::WriteStats(AliStats* stats)
	347	{
	348	// Write stats to raw DB, local run DB and global MySQL DB.
	349
f2dc6b20	350	AliRawEventHeaderBase &header = *GetEvent()->GetHeader();
b7d09bb3	351
	352	// Write stats into RawDB
	353	TDirectory *ds = gDirectory;
	354	GetDB()->cd();
	355	stats->SetEvents(GetEvents());
f2dc6b20	356	stats->SetLastId(header.Get("RunNb"), header.GetP("Id")[0]);
b7d09bb3	357	stats->SetFileSize(GetBytesWritten());
	358	stats->SetCompressionFactor(GetCompressionFactor());
	359	stats->SetEndTime();
	360	stats->Write("stats");
	361	ds->cd();
	362	}
	363
a197a4ce	364	//______________________________________________________________________________
e10815f1	365	Bool_t AliRawDB::NextFile(const char* fileName)
a197a4ce	366	{
	367	// Close te current file and open a new one.
	368	// Returns kFALSE in case opening failed.
	369
	370	Close();
	371
e10815f1	372	if (!Create(fileName)) return kFALSE;
a197a4ce	373	return kTRUE;
	374	}
	375
	376	//______________________________________________________________________________
	377	Float_t AliRawDB::GetCompressionFactor() const
	378	{
	379	// Return compression factor.
	380
	381	if (fTree->GetZipBytes() == 0.)
	382	return 1.0;
	383	else
	384	return fTree->GetTotBytes()/fTree->GetZipBytes();
	385	}
ee8f2a6c	386
	387	//______________________________________________________________________________
	388	const char *AliRawDB::GetAliRootTag()
	389	{
	390	// Return the aliroot tag (version)
	391	// used to generate the raw data file.
	392	// Stored in the raw-data file title.
	393
	394	TString version = fgkAliRootTag;
	395	version.Remove(TString::kBoth,'$');
	396	version.ReplaceAll("Name","AliRoot version");
	397
	398	return version.Data();
	399	}