1 // @(#)alimdc:$Name$:$Id$
2 // Author: Fons Rademakers 26/11/99
4 /**************************************************************************
5 * Copyright(c) 1998-2003, ALICE Experiment at CERN, All rights reserved. *
7 * Author: The ALICE Off-line Project. *
8 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
19 //////////////////////////////////////////////////////////////////////////
23 //////////////////////////////////////////////////////////////////////////
35 #include "AliRawEvent.h"
36 #include "AliRawEventHeader.h"
45 //______________________________________________________________________________
46 AliRawDB::AliRawDB(AliRawEvent *event,
49 const char* fileName) :
62 // Create a new raw DB
64 // Consistency check with DATE header file
66 if (fEvent->GetHeader()->HeaderSize() != EVENT_HEAD_BASE_SIZE) {
67 Error("AliRawDB", "inconsistency between DATE and AliRawEvent headers");
74 if (!Create(fileName))
79 //______________________________________________________________________________
80 AliRawDB::AliRawDB(const AliRawDB& rawDB): TObject(rawDB)
84 Fatal("AliRawDB", "copy constructor not implemented");
87 //______________________________________________________________________________
88 AliRawDB& AliRawDB::operator = (const AliRawDB& /*rawDB*/)
90 // assignment operator
92 Fatal("operator =", "assignment operator not implemented");
96 //______________________________________________________________________________
97 Bool_t AliRawDB::FSHasSpace(const char *fs) const
99 // Check for at least fMaxSize bytes of free space on the file system.
100 // If the space is not available return kFALSE, kTRUE otherwise.
102 Long_t id, bsize, blocks, bfree;
104 if (gSystem->GetFsInfo(fs, &id, &bsize, &blocks, &bfree) == 1) {
105 Error("FSHasSpace", "could not stat file system %s", fs);
109 // Leave 5 percent of diskspace free
110 Double_t avail = Double_t(bfree) * 0.95;
111 if (avail*bsize > fMaxSize)
114 Warning("FSHasSpace", "no space on file system %s", fs);
118 //______________________________________________________________________________
119 const char *AliRawDB::GetFileName() const
121 // Return filename based on hostname and date and time. This will make
122 // each file unique. Also makes sure (via FSHasSpace()) that there is
123 // enough space on the file system to store the file. Returns 0 in
124 // case of error or interrupt signal.
126 static TString fname;
127 static Bool_t fstoggle = kFALSE;
129 TString fs = fstoggle ? fFS2 : fFS1;
132 TString hostname = gSystem->HostName();
134 if ((pos = hostname.Index(".")) != kNPOS)
135 hostname.Remove(pos);
137 if (!FSHasSpace(fs)) {
139 fstoggle = !fstoggle;
140 fs = fstoggle ? fFS2 : fFS1;
141 if (FSHasSpace(fs)) break;
142 Info("GetFileName", "sleeping 30 seconds before retrying...");
143 gSystem->Sleep(30000); // sleep for 30 seconds
148 fname = fs + "/" + hostname + "_";
149 fname += dt.GetDate();
151 fname += dt.GetTime();
154 fstoggle = !fstoggle;
159 //______________________________________________________________________________
160 void AliRawDB::SetFS(const char* fs1, const char* fs2)
162 // set the file system location
165 if (fs1 && !fFS1.Contains(":")) {
166 gSystem->ResetErrno();
167 gSystem->MakeDirectory(fs1);
168 if (gSystem->GetErrno() && gSystem->GetErrno() != EEXIST) {
169 SysError("SetFS", "mkdir %s", fs1);
175 gSystem->ResetErrno();
176 gSystem->MakeDirectory(fs2);
177 if (gSystem->GetErrno() && gSystem->GetErrno() != EEXIST) {
178 SysError("SetFS", "mkdir %s", fs2);
183 //______________________________________________________________________________
184 Bool_t AliRawDB::Create(const char* fileName)
186 // Create a new raw DB.
188 const Int_t kMaxRetry = 200;
189 const Int_t kMaxSleep = 1; // seconds
190 const Int_t kMaxSleepLong = 10; // seconds
194 if (fStop) return kFALSE;
196 const char *fname = fileName;
197 if (!fname) fname = GetFileName();
199 Error("Create", "error getting raw DB file name");
205 fRawDB = TFile::Open(fname, GetOpenOption(),
206 Form("ALICE MDC%d raw DB", kMDC), fCompress,
209 if (retry < kMaxRetry) {
210 Warning("Create", "failure to open file, sleeping %d %s before retrying...",
211 kMaxSleep, kMaxSleep==1 ? "second" : "seconds");
212 gSystem->Sleep(kMaxSleep*1000);
215 Error("Create", "failure to open file %s after %d tries", fname, kMaxRetry);
219 Warning("Create", "succeeded to open file after %d retries", retry);
221 if (fRawDB->IsZombie()) {
222 if (fRawDB->GetErrno() == ENOSPC ||
223 fRawDB->GetErrno() == 1018 || // SECOMERR
224 fRawDB->GetErrno() == 1027) { // SESYSERR
225 fRawDB->ResetErrno();
227 Warning("Create", "file is a zombie (no space), sleeping %d %s before retrying...",
228 kMaxSleepLong, kMaxSleepLong==1 ? "second" : "seconds");
229 gSystem->Sleep(kMaxSleepLong*1000); // sleep 10 seconds before retrying
232 Error("Create", "file %s is zombie", fname);
233 fRawDB->ResetErrno();
236 if (retry < kMaxRetry) {
237 Warning("Create", "file is a zombie, sleeping %d %s before retrying...",
238 kMaxSleep, kMaxSleep==1 ? "second" : "seconds");
239 gSystem->Sleep(kMaxSleep*1000);
242 Error("Create", "failure to open file %s after %d tries", fname, kMaxRetry);
246 // Create raw data TTree
252 //______________________________________________________________________________
253 void AliRawDB::MakeTree()
255 // Create ROOT Tree object container.
257 fTree = new TTree("RAW", Form("ALICE MDC%d raw data tree", kMDC));
258 fTree->SetAutoSave(2000000000); // autosave when 2 Gbyte written
260 Int_t bufsize = 256000;
261 // splitting 29.6 MB/s, no splitting 35.3 MB/s on P4 2GHz 15k SCSI
264 fTree->Branch("rawevent", "AliRawEvent", &fEvent, bufsize, split);
266 // Create tree which will contain the HLT ESD information
269 fESDTree = new TTree("esdTree", Form("ALICE MDC%d HLT ESD tree", kMDC));
270 fESDTree->SetAutoSave(2000000000); // autosave when 2 Gbyte written
272 fESDTree->Branch("ESD", "AliESD", &fESD, bufsize, split);
277 //______________________________________________________________________________
278 void AliRawDB::Close()
288 if (fESDTree) fESDTree->Write();
290 // Close DB, this also deletes the fTree
294 gSystem->Unlink(fRawDB->GetName());
300 // Create semaphore to say this file is finished
301 Int_t tfd = ::creat(Form("%s.done", fRawDB->GetName()), 0644);
308 //______________________________________________________________________________
309 Int_t AliRawDB::Fill()
311 // Fill the trees and return the number of written bytes
313 Double_t bytes = fRawDB->GetBytesWritten();
315 if (fESDTree) fESDTree->Fill();
316 return Int_t(fRawDB->GetBytesWritten() - bytes);
319 //______________________________________________________________________________
320 Int_t AliRawDB::GetTotalSize()
322 // Return the total size of the trees
327 TDirectory *dir = fTree->GetDirectory();
329 TKey *key = dir->GetKey(fTree->GetName());
330 if (key) skey = key->GetKeylen();
333 if (fTree->GetZipBytes() > 0) total += fTree->GetTotBytes();
334 TBuffer b(TBuffer::kWrite,10000);
335 TTree::Class()->WriteBuffer(b,fTree);
342 TDirectory *dir = fESDTree->GetDirectory();
344 TKey *key = dir->GetKey(fESDTree->GetName());
345 if (key) skey = key->GetKeylen();
348 if (fESDTree->GetZipBytes() > 0) total += fESDTree->GetTotBytes();
349 TBuffer b(TBuffer::kWrite,10000);
350 TTree::Class()->WriteBuffer(b,fESDTree);
357 //______________________________________________________________________________
358 void AliRawDB::WriteStats(AliStats* stats)
360 // Write stats to raw DB, local run DB and global MySQL DB.
362 AliRawEventHeader &header = *GetEvent()->GetHeader();
364 // Write stats into RawDB
365 TDirectory *ds = gDirectory;
367 stats->SetEvents(GetEvents());
368 stats->SetLastId(header.GetRunNumber(), header.GetEventInRun());
369 stats->SetFileSize(GetBytesWritten());
370 stats->SetCompressionFactor(GetCompressionFactor());
372 stats->Write("stats");
376 //______________________________________________________________________________
377 Bool_t AliRawDB::NextFile(const char* fileName)
379 // Close te current file and open a new one.
380 // Returns kFALSE in case opening failed.
384 if (!Create(fileName)) return kFALSE;
388 //______________________________________________________________________________
389 Float_t AliRawDB::GetCompressionFactor() const
391 // Return compression factor.
393 if (fTree->GetZipBytes() == 0.)
396 return fTree->GetTotBytes()/fTree->GetZipBytes();