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 //////////////////////////////////////////////////////////////////////////
33 #include "AliRawEvent.h"
34 #include "AliRawEventHeader.h"
48 //______________________________________________________________________________
49 AliRawDB::AliRawDB(AliRawEvent *event,
53 Double_t maxsize, Int_t compress,
56 // Create a new raw DB containing at most maxsize bytes.
65 // Consistency check with DATE header file
67 if (fEvent->GetHeader()->HeaderSize() != EVENT_HEAD_BASE_SIZE) {
68 Error("AliRawDB", "inconsistency between DATE and AliRawEvent headers");
80 //______________________________________________________________________________
81 AliRawDB::AliRawDB(const AliRawDB& rawDB): TObject(rawDB)
85 Fatal("AliRawDB", "copy constructor not implemented");
88 //______________________________________________________________________________
89 AliRawDB& AliRawDB::operator = (const AliRawDB& /*rawDB*/)
91 // assignment operator
93 Fatal("operator =", "assignment operator not implemented");
97 //______________________________________________________________________________
98 Bool_t AliRawDB::FSHasSpace(const char *fs) const
100 // Check for at least fMaxSize bytes of free space on the file system.
101 // If the space is not available return kFALSE, kTRUE otherwise.
103 Long_t id, bsize, blocks, bfree;
105 if (gSystem->GetFsInfo(fs, &id, &bsize, &blocks, &bfree) == 1) {
106 Error("FSHasSpace", "could not stat file system %s", fs);
110 // Leave 5 percent of diskspace free
111 Double_t avail = Double_t(bfree) * 0.95;
112 if (avail*bsize > fMaxSize)
115 Warning("FSHasSpace", "no space on file system %s", fs);
119 //______________________________________________________________________________
120 const char *AliRawDB::GetFileName() const
122 // Return filename based on hostname and date and time. This will make
123 // each file unique. Also makes sure (via FSHasSpace()) that there is
124 // enough space on the file system to store the file. Returns 0 in
125 // case of error or interrupt signal.
127 static TString fname;
128 static Bool_t fstoggle = kFALSE;
130 TString fs = fstoggle ? AliMDC::RawDBFS(1) : AliMDC::RawDBFS(0);
133 TString hostname = gSystem->HostName();
135 if ((pos = hostname.Index(".")) != kNPOS)
136 hostname.Remove(pos);
138 if (!FSHasSpace(fs)) {
140 fstoggle = !fstoggle;
141 fs = fstoggle ? AliMDC::RawDBFS(1) : AliMDC::RawDBFS(0);
142 if (FSHasSpace(fs)) break;
143 Info("GetFileName", "sleeping 30 seconds before retrying...");
144 gSystem->Sleep(30000); // sleep for 30 seconds
145 if (AliMDC::Instance() && AliMDC::Instance()->StopLoop())
150 fname = fs + "/" + hostname + "_";
151 fname += dt.GetDate();
153 fname += dt.GetTime();
156 fstoggle = !fstoggle;
161 //______________________________________________________________________________
162 Bool_t AliRawDB::Create()
164 // Create a new raw DB.
166 const Int_t kMaxRetry = 200;
167 const Int_t kMaxSleep = 1; // seconds
168 const Int_t kMaxSleepLong = 10; // seconds
172 if (AliMDC::Instance() && AliMDC::Instance()->StopLoop())
175 const char *fname = GetFileName();
177 Error("Create", "error getting raw DB file name");
183 fRawDB = TFile::Open(fname, GetOpenOption(),
184 Form("ALICE MDC%d raw DB", AliMDC::kMDC), fCompress,
187 if (retry < kMaxRetry) {
188 Warning("Create", "failure to open file, sleeping %d %s before retrying...",
189 kMaxSleep, kMaxSleep==1 ? "second" : "seconds");
190 gSystem->Sleep(kMaxSleep*1000);
193 Error("Create", "failure to open file %s after %d tries", fname, kMaxRetry);
197 Warning("Create", "succeeded to open file after %d retries", retry);
199 if (fRawDB->IsZombie()) {
200 if (fRawDB->GetErrno() == ENOSPC ||
201 fRawDB->GetErrno() == 1018 || // SECOMERR
202 fRawDB->GetErrno() == 1027) { // SESYSERR
203 fRawDB->ResetErrno();
205 Warning("Create", "file is a zombie (no space), sleeping %d %s before retrying...",
206 kMaxSleepLong, kMaxSleepLong==1 ? "second" : "seconds");
207 gSystem->Sleep(kMaxSleepLong*1000); // sleep 10 seconds before retrying
210 Error("Create", "file %s is zombie", fname);
211 fRawDB->ResetErrno();
214 if (retry < kMaxRetry) {
215 Warning("Create", "file is a zombie, sleeping %d %s before retrying...",
216 kMaxSleep, kMaxSleep==1 ? "second" : "seconds");
217 gSystem->Sleep(kMaxSleep*1000);
220 Error("Create", "failure to open file %s after %d tries", fname, kMaxRetry);
224 // Create raw data TTree
230 //______________________________________________________________________________
231 void AliRawDB::MakeTree()
233 // Create ROOT Tree object container.
235 fTree = new TTree("RAW", Form("ALICE MDC%d raw data tree", AliMDC::kMDC));
236 fTree->SetAutoSave(2000000000); // autosave when 2 Gbyte written
238 Int_t bufsize = 256000;
239 // splitting 29.6 MB/s, no splitting 35.3 MB/s on P4 2GHz 15k SCSI
242 fTree->Branch("rawevent", "AliRawEvent", &fEvent, bufsize, split);
245 // Create tree which will contain the HLT ESD information
247 fESDTree = new TTree("esdTree", Form("ALICE MDC%d HLT ESD tree", AliMDC::kMDC));
248 fESDTree->SetAutoSave(2000000000); // autosave when 2 Gbyte written
250 fESDTree->Branch("ESD", "AliESD", &fESD, bufsize, split);
255 //______________________________________________________________________________
256 void AliRawDB::Close()
270 // Close DB, this also deletes the fTree
273 if (AliMDC::DeleteFiles()) {
274 gSystem->Unlink(fRawDB->GetName());
280 // Create semaphore to say this file is finished
281 Int_t tfd = ::creat(Form("%s.done", fRawDB->GetName()), 0644);
288 //______________________________________________________________________________
289 void AliRawDB::WriteStats(AliStats* stats)
291 // Write stats to raw DB, local run DB and global MySQL DB.
293 AliRawEventHeader &header = *GetEvent()->GetHeader();
295 // Write stats into RawDB
296 TDirectory *ds = gDirectory;
298 stats->SetEvents(GetEvents());
299 stats->SetLastId(header.GetRunNumber(), header.GetEventInRun());
300 stats->SetFileSize(GetBytesWritten());
301 stats->SetCompressionFactor(GetCompressionFactor());
303 stats->Write("stats");
307 //______________________________________________________________________________
308 Bool_t AliRawDB::NextFile()
310 // Close te current file and open a new one.
311 // Returns kFALSE in case opening failed.
315 if (!Create()) return kFALSE;
319 //______________________________________________________________________________
320 Float_t AliRawDB::GetCompressionFactor() const
322 // Return compression factor.
324 if (fTree->GetZipBytes() == 0.)
327 return fTree->GetTotBytes()/fTree->GetZipBytes();