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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 | ||
40 | ||
41 | //______________________________________________________________________________ | |
a109e73e | 42 | AliRawDB::AliRawDB(AliRawEvent *event, |
a109e73e | 43 | AliESD *esd, |
e10815f1 | 44 | Int_t compress, |
45 | const char* fileName) : | |
46 | fRawDB(NULL), | |
47 | fTree(NULL), | |
48 | fEvent(event), | |
49 | fESDTree(NULL), | |
50 | fESD(esd), | |
51 | fCompress(compress), | |
52 | fMaxSize(-1), | |
53 | fFS1(""), | |
54 | fFS2(""), | |
55 | fDeleteFiles(kFALSE), | |
56 | fStop(kFALSE) | |
a197a4ce | 57 | { |
e10815f1 | 58 | // Create a new raw DB |
a197a4ce | 59 | |
e10815f1 | 60 | if (fileName) { |
61 | if (!Create(fileName)) | |
a197a4ce | 62 | MakeZombie(); |
63 | } | |
64 | } | |
65 | ||
66 | //______________________________________________________________________________ | |
67 | AliRawDB::AliRawDB(const AliRawDB& rawDB): TObject(rawDB) | |
68 | { | |
69 | // copy constructor | |
70 | ||
71 | Fatal("AliRawDB", "copy constructor not implemented"); | |
72 | } | |
73 | ||
74 | //______________________________________________________________________________ | |
75 | AliRawDB& AliRawDB::operator = (const AliRawDB& /*rawDB*/) | |
76 | { | |
77 | // assignment operator | |
78 | ||
79 | Fatal("operator =", "assignment operator not implemented"); | |
80 | return *this; | |
81 | } | |
82 | ||
83 | //______________________________________________________________________________ | |
84 | Bool_t AliRawDB::FSHasSpace(const char *fs) const | |
85 | { | |
86 | // Check for at least fMaxSize bytes of free space on the file system. | |
87 | // If the space is not available return kFALSE, kTRUE otherwise. | |
88 | ||
89 | Long_t id, bsize, blocks, bfree; | |
90 | ||
91 | if (gSystem->GetFsInfo(fs, &id, &bsize, &blocks, &bfree) == 1) { | |
92 | Error("FSHasSpace", "could not stat file system %s", fs); | |
93 | return kFALSE; | |
94 | } | |
95 | ||
96 | // Leave 5 percent of diskspace free | |
97 | Double_t avail = Double_t(bfree) * 0.95; | |
98 | if (avail*bsize > fMaxSize) | |
99 | return kTRUE; | |
100 | ||
101 | Warning("FSHasSpace", "no space on file system %s", fs); | |
102 | return kFALSE; | |
103 | } | |
104 | ||
105 | //______________________________________________________________________________ | |
106 | const char *AliRawDB::GetFileName() const | |
107 | { | |
108 | // Return filename based on hostname and date and time. This will make | |
109 | // each file unique. Also makes sure (via FSHasSpace()) that there is | |
110 | // enough space on the file system to store the file. Returns 0 in | |
111 | // case of error or interrupt signal. | |
112 | ||
113 | static TString fname; | |
114 | static Bool_t fstoggle = kFALSE; | |
115 | ||
e10815f1 | 116 | TString fs = fstoggle ? fFS2 : fFS1; |
a197a4ce | 117 | TDatime dt; |
118 | ||
119 | TString hostname = gSystem->HostName(); | |
120 | Int_t pos; | |
121 | if ((pos = hostname.Index(".")) != kNPOS) | |
122 | hostname.Remove(pos); | |
123 | ||
124 | if (!FSHasSpace(fs)) { | |
125 | while (1) { | |
126 | fstoggle = !fstoggle; | |
e10815f1 | 127 | fs = fstoggle ? fFS2 : fFS1; |
a197a4ce | 128 | if (FSHasSpace(fs)) break; |
129 | Info("GetFileName", "sleeping 30 seconds before retrying..."); | |
130 | gSystem->Sleep(30000); // sleep for 30 seconds | |
e10815f1 | 131 | if (fStop) return 0; |
a197a4ce | 132 | } |
133 | } | |
134 | ||
135 | fname = fs + "/" + hostname + "_"; | |
136 | fname += dt.GetDate(); | |
137 | fname += "_"; | |
138 | fname += dt.GetTime(); | |
139 | fname += ".root"; | |
140 | ||
141 | fstoggle = !fstoggle; | |
142 | ||
143 | return fname; | |
144 | } | |
145 | ||
146 | //______________________________________________________________________________ | |
e10815f1 | 147 | void AliRawDB::SetFS(const char* fs1, const char* fs2) |
148 | { | |
149 | // set the file system location | |
150 | ||
151 | fFS1 = fs1; | |
152 | if (fs1 && !fFS1.Contains(":")) { | |
153 | gSystem->ResetErrno(); | |
154 | gSystem->MakeDirectory(fs1); | |
155 | if (gSystem->GetErrno() && gSystem->GetErrno() != EEXIST) { | |
156 | SysError("SetFS", "mkdir %s", fs1); | |
157 | } | |
158 | } | |
159 | ||
160 | fFS2 = fs2; | |
161 | if (fs2) { | |
162 | gSystem->ResetErrno(); | |
163 | gSystem->MakeDirectory(fs2); | |
164 | if (gSystem->GetErrno() && gSystem->GetErrno() != EEXIST) { | |
165 | SysError("SetFS", "mkdir %s", fs2); | |
166 | } | |
167 | } | |
168 | } | |
169 | ||
170 | //______________________________________________________________________________ | |
171 | Bool_t AliRawDB::Create(const char* fileName) | |
a197a4ce | 172 | { |
173 | // Create a new raw DB. | |
174 | ||
f07ec911 | 175 | const Int_t kMaxRetry = 1; |
a197a4ce | 176 | const Int_t kMaxSleep = 1; // seconds |
177 | const Int_t kMaxSleepLong = 10; // seconds | |
178 | Int_t retry = 0; | |
179 | ||
180 | again: | |
e10815f1 | 181 | if (fStop) return kFALSE; |
a197a4ce | 182 | |
e10815f1 | 183 | const char *fname = fileName; |
184 | if (!fname) fname = GetFileName(); | |
a197a4ce | 185 | if (!fname) { |
186 | Error("Create", "error getting raw DB file name"); | |
187 | return kFALSE; | |
188 | } | |
189 | ||
190 | retry++; | |
191 | ||
192 | fRawDB = TFile::Open(fname, GetOpenOption(), | |
f07ec911 | 193 | Form("ALICE MDC%d raw DB", kMDC), fCompress, |
194 | GetNetopt()); | |
a197a4ce | 195 | if (!fRawDB) { |
196 | if (retry < kMaxRetry) { | |
197 | Warning("Create", "failure to open file, sleeping %d %s before retrying...", | |
198 | kMaxSleep, kMaxSleep==1 ? "second" : "seconds"); | |
199 | gSystem->Sleep(kMaxSleep*1000); | |
200 | goto again; | |
201 | } | |
202 | Error("Create", "failure to open file %s after %d tries", fname, kMaxRetry); | |
203 | return kFALSE; | |
204 | } | |
205 | if (retry > 1) | |
206 | Warning("Create", "succeeded to open file after %d retries", retry); | |
207 | ||
208 | if (fRawDB->IsZombie()) { | |
209 | if (fRawDB->GetErrno() == ENOSPC || | |
210 | fRawDB->GetErrno() == 1018 || // SECOMERR | |
211 | fRawDB->GetErrno() == 1027) { // SESYSERR | |
212 | fRawDB->ResetErrno(); | |
213 | delete fRawDB; | |
214 | Warning("Create", "file is a zombie (no space), sleeping %d %s before retrying...", | |
215 | kMaxSleepLong, kMaxSleepLong==1 ? "second" : "seconds"); | |
216 | gSystem->Sleep(kMaxSleepLong*1000); // sleep 10 seconds before retrying | |
217 | goto again; | |
218 | } | |
219 | Error("Create", "file %s is zombie", fname); | |
220 | fRawDB->ResetErrno(); | |
221 | delete fRawDB; | |
222 | fRawDB = 0; | |
223 | if (retry < kMaxRetry) { | |
224 | Warning("Create", "file is a zombie, sleeping %d %s before retrying...", | |
225 | kMaxSleep, kMaxSleep==1 ? "second" : "seconds"); | |
226 | gSystem->Sleep(kMaxSleep*1000); | |
227 | goto again; | |
228 | } | |
229 | Error("Create", "failure to open file %s after %d tries", fname, kMaxRetry); | |
230 | return kFALSE; | |
231 | } | |
232 | ||
233 | // Create raw data TTree | |
234 | MakeTree(); | |
235 | ||
236 | return kTRUE; | |
237 | } | |
238 | ||
239 | //______________________________________________________________________________ | |
240 | void AliRawDB::MakeTree() | |
241 | { | |
242 | // Create ROOT Tree object container. | |
243 | ||
e10815f1 | 244 | fTree = new TTree("RAW", Form("ALICE MDC%d raw data tree", kMDC)); |
a197a4ce | 245 | fTree->SetAutoSave(2000000000); // autosave when 2 Gbyte written |
246 | ||
247 | Int_t bufsize = 256000; | |
248 | // splitting 29.6 MB/s, no splitting 35.3 MB/s on P4 2GHz 15k SCSI | |
249 | //Int_t split = 1; | |
250 | Int_t split = 0; | |
251 | fTree->Branch("rawevent", "AliRawEvent", &fEvent, bufsize, split); | |
a109e73e | 252 | |
a109e73e | 253 | // Create tree which will contain the HLT ESD information |
254 | ||
e10815f1 | 255 | if (fESD) { |
256 | fESDTree = new TTree("esdTree", Form("ALICE MDC%d HLT ESD tree", kMDC)); | |
257 | fESDTree->SetAutoSave(2000000000); // autosave when 2 Gbyte written | |
5f42007f | 258 | split = 0; |
e10815f1 | 259 | fESDTree->Branch("ESD", "AliESD", &fESD, bufsize, split); |
260 | } | |
a109e73e | 261 | |
a197a4ce | 262 | } |
263 | ||
264 | //______________________________________________________________________________ | |
f07ec911 | 265 | Int_t AliRawDB::Close() |
a197a4ce | 266 | { |
267 | // Close raw DB. | |
f07ec911 | 268 | if (!fRawDB) return 0; |
a197a4ce | 269 | |
f07ec911 | 270 | if (!fRawDB->IsOpen()) return 0; |
a197a4ce | 271 | |
272 | fRawDB->cd(); | |
273 | ||
274 | // Write the tree. | |
f07ec911 | 275 | Bool_t error = kFALSE; |
276 | if (fTree->Write() == 0) | |
277 | error = kTRUE; | |
278 | if (fESDTree) | |
279 | if (fESDTree->Write() == 0) | |
280 | error = kTRUE; | |
a197a4ce | 281 | |
282 | // Close DB, this also deletes the fTree | |
283 | fRawDB->Close(); | |
284 | ||
f07ec911 | 285 | Int_t filesize = fRawDB->GetEND(); |
286 | ||
e10815f1 | 287 | if (fDeleteFiles) { |
a197a4ce | 288 | gSystem->Unlink(fRawDB->GetName()); |
289 | delete fRawDB; | |
290 | fRawDB = 0; | |
f07ec911 | 291 | if(!error) |
292 | return filesize; | |
293 | else | |
294 | return -1; | |
a197a4ce | 295 | } |
296 | ||
297 | // Create semaphore to say this file is finished | |
298 | Int_t tfd = ::creat(Form("%s.done", fRawDB->GetName()), 0644); | |
299 | close(tfd); | |
300 | ||
301 | delete fRawDB; | |
302 | fRawDB = 0; | |
f07ec911 | 303 | if(!error) |
304 | return filesize; | |
305 | else | |
306 | return -1; | |
a197a4ce | 307 | } |
308 | ||
e10815f1 | 309 | //______________________________________________________________________________ |
310 | Int_t AliRawDB::Fill() | |
311 | { | |
312 | // Fill the trees and return the number of written bytes | |
313 | ||
314 | Double_t bytes = fRawDB->GetBytesWritten(); | |
f07ec911 | 315 | Bool_t error = kFALSE; |
316 | if (fTree->Fill() == -1) | |
317 | error = kTRUE; | |
318 | if (fESDTree) | |
319 | if (fESDTree->Fill() == -1) | |
320 | error = kTRUE; | |
321 | if(!error) | |
322 | return Int_t(fRawDB->GetBytesWritten() - bytes); | |
323 | else | |
324 | return -1; | |
e10815f1 | 325 | } |
326 | ||
d21e9888 | 327 | //______________________________________________________________________________ |
328 | Int_t AliRawDB::GetTotalSize() | |
329 | { | |
330 | // Return the total size of the trees | |
331 | Int_t total = 0; | |
332 | ||
333 | { | |
334 | Int_t skey = 0; | |
335 | TDirectory *dir = fTree->GetDirectory(); | |
336 | if (dir) { | |
337 | TKey *key = dir->GetKey(fTree->GetName()); | |
338 | if (key) skey = key->GetKeylen(); | |
339 | } | |
340 | total += skey; | |
341 | if (fTree->GetZipBytes() > 0) total += fTree->GetTotBytes(); | |
342 | TBuffer b(TBuffer::kWrite,10000); | |
343 | TTree::Class()->WriteBuffer(b,fTree); | |
344 | total += b.Length(); | |
345 | } | |
346 | ||
347 | if(fESDTree) | |
348 | { | |
349 | Int_t skey = 0; | |
350 | TDirectory *dir = fESDTree->GetDirectory(); | |
351 | if (dir) { | |
352 | TKey *key = dir->GetKey(fESDTree->GetName()); | |
353 | if (key) skey = key->GetKeylen(); | |
354 | } | |
355 | total += skey; | |
356 | if (fESDTree->GetZipBytes() > 0) total += fESDTree->GetTotBytes(); | |
357 | TBuffer b(TBuffer::kWrite,10000); | |
358 | TTree::Class()->WriteBuffer(b,fESDTree); | |
359 | total += b.Length(); | |
360 | } | |
361 | ||
362 | return total; | |
363 | } | |
364 | ||
b7d09bb3 | 365 | //______________________________________________________________________________ |
366 | void AliRawDB::WriteStats(AliStats* stats) | |
367 | { | |
368 | // Write stats to raw DB, local run DB and global MySQL DB. | |
369 | ||
f2dc6b20 | 370 | AliRawEventHeaderBase &header = *GetEvent()->GetHeader(); |
b7d09bb3 | 371 | |
372 | // Write stats into RawDB | |
373 | TDirectory *ds = gDirectory; | |
374 | GetDB()->cd(); | |
375 | stats->SetEvents(GetEvents()); | |
f2dc6b20 | 376 | stats->SetLastId(header.Get("RunNb"), header.GetP("Id")[0]); |
b7d09bb3 | 377 | stats->SetFileSize(GetBytesWritten()); |
378 | stats->SetCompressionFactor(GetCompressionFactor()); | |
379 | stats->SetEndTime(); | |
380 | stats->Write("stats"); | |
381 | ds->cd(); | |
382 | } | |
383 | ||
a197a4ce | 384 | //______________________________________________________________________________ |
e10815f1 | 385 | Bool_t AliRawDB::NextFile(const char* fileName) |
a197a4ce | 386 | { |
387 | // Close te current file and open a new one. | |
388 | // Returns kFALSE in case opening failed. | |
389 | ||
390 | Close(); | |
391 | ||
e10815f1 | 392 | if (!Create(fileName)) return kFALSE; |
a197a4ce | 393 | return kTRUE; |
394 | } | |
395 | ||
396 | //______________________________________________________________________________ | |
397 | Float_t AliRawDB::GetCompressionFactor() const | |
398 | { | |
399 | // Return compression factor. | |
400 | ||
401 | if (fTree->GetZipBytes() == 0.) | |
402 | return 1.0; | |
403 | else | |
404 | return fTree->GetTotBytes()/fTree->GetZipBytes(); | |
405 | } |