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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> | |
28 | ||
29 | #ifdef ALI_DATE | |
30 | #include "event.h" | |
31 | #endif | |
32 | ||
33 | #include "AliRawEvent.h" | |
34 | #include "AliRawEventHeader.h" | |
b7d09bb3 | 35 | #include "AliStats.h" |
a109e73e | 36 | |
a197a4ce | 37 | #include "AliRawDB.h" |
38 | ||
39 | ||
40 | ClassImp(AliRawDB) | |
41 | ||
42 | ||
43 | //______________________________________________________________________________ | |
a109e73e | 44 | AliRawDB::AliRawDB(AliRawEvent *event, |
a109e73e | 45 | AliESD *esd, |
e10815f1 | 46 | Int_t compress, |
47 | const char* fileName) : | |
48 | fRawDB(NULL), | |
49 | fTree(NULL), | |
50 | fEvent(event), | |
51 | fESDTree(NULL), | |
52 | fESD(esd), | |
53 | fCompress(compress), | |
54 | fMaxSize(-1), | |
55 | fFS1(""), | |
56 | fFS2(""), | |
57 | fDeleteFiles(kFALSE), | |
58 | fStop(kFALSE) | |
a197a4ce | 59 | { |
e10815f1 | 60 | // Create a new raw DB |
a197a4ce | 61 | |
62 | // Consistency check with DATE header file | |
63 | #ifdef ALI_DATE | |
64 | if (fEvent->GetHeader()->HeaderSize() != EVENT_HEAD_BASE_SIZE) { | |
65 | Error("AliRawDB", "inconsistency between DATE and AliRawEvent headers"); | |
66 | MakeZombie(); | |
67 | return; | |
68 | } | |
69 | #endif | |
70 | ||
e10815f1 | 71 | if (fileName) { |
72 | if (!Create(fileName)) | |
a197a4ce | 73 | MakeZombie(); |
74 | } | |
75 | } | |
76 | ||
77 | //______________________________________________________________________________ | |
78 | AliRawDB::AliRawDB(const AliRawDB& rawDB): TObject(rawDB) | |
79 | { | |
80 | // copy constructor | |
81 | ||
82 | Fatal("AliRawDB", "copy constructor not implemented"); | |
83 | } | |
84 | ||
85 | //______________________________________________________________________________ | |
86 | AliRawDB& AliRawDB::operator = (const AliRawDB& /*rawDB*/) | |
87 | { | |
88 | // assignment operator | |
89 | ||
90 | Fatal("operator =", "assignment operator not implemented"); | |
91 | return *this; | |
92 | } | |
93 | ||
94 | //______________________________________________________________________________ | |
95 | Bool_t AliRawDB::FSHasSpace(const char *fs) const | |
96 | { | |
97 | // Check for at least fMaxSize bytes of free space on the file system. | |
98 | // If the space is not available return kFALSE, kTRUE otherwise. | |
99 | ||
100 | Long_t id, bsize, blocks, bfree; | |
101 | ||
102 | if (gSystem->GetFsInfo(fs, &id, &bsize, &blocks, &bfree) == 1) { | |
103 | Error("FSHasSpace", "could not stat file system %s", fs); | |
104 | return kFALSE; | |
105 | } | |
106 | ||
107 | // Leave 5 percent of diskspace free | |
108 | Double_t avail = Double_t(bfree) * 0.95; | |
109 | if (avail*bsize > fMaxSize) | |
110 | return kTRUE; | |
111 | ||
112 | Warning("FSHasSpace", "no space on file system %s", fs); | |
113 | return kFALSE; | |
114 | } | |
115 | ||
116 | //______________________________________________________________________________ | |
117 | const char *AliRawDB::GetFileName() const | |
118 | { | |
119 | // Return filename based on hostname and date and time. This will make | |
120 | // each file unique. Also makes sure (via FSHasSpace()) that there is | |
121 | // enough space on the file system to store the file. Returns 0 in | |
122 | // case of error or interrupt signal. | |
123 | ||
124 | static TString fname; | |
125 | static Bool_t fstoggle = kFALSE; | |
126 | ||
e10815f1 | 127 | TString fs = fstoggle ? fFS2 : fFS1; |
a197a4ce | 128 | TDatime dt; |
129 | ||
130 | TString hostname = gSystem->HostName(); | |
131 | Int_t pos; | |
132 | if ((pos = hostname.Index(".")) != kNPOS) | |
133 | hostname.Remove(pos); | |
134 | ||
135 | if (!FSHasSpace(fs)) { | |
136 | while (1) { | |
137 | fstoggle = !fstoggle; | |
e10815f1 | 138 | fs = fstoggle ? fFS2 : fFS1; |
a197a4ce | 139 | if (FSHasSpace(fs)) break; |
140 | Info("GetFileName", "sleeping 30 seconds before retrying..."); | |
141 | gSystem->Sleep(30000); // sleep for 30 seconds | |
e10815f1 | 142 | if (fStop) return 0; |
a197a4ce | 143 | } |
144 | } | |
145 | ||
146 | fname = fs + "/" + hostname + "_"; | |
147 | fname += dt.GetDate(); | |
148 | fname += "_"; | |
149 | fname += dt.GetTime(); | |
150 | fname += ".root"; | |
151 | ||
152 | fstoggle = !fstoggle; | |
153 | ||
154 | return fname; | |
155 | } | |
156 | ||
157 | //______________________________________________________________________________ | |
e10815f1 | 158 | void AliRawDB::SetFS(const char* fs1, const char* fs2) |
159 | { | |
160 | // set the file system location | |
161 | ||
162 | fFS1 = fs1; | |
163 | if (fs1 && !fFS1.Contains(":")) { | |
164 | gSystem->ResetErrno(); | |
165 | gSystem->MakeDirectory(fs1); | |
166 | if (gSystem->GetErrno() && gSystem->GetErrno() != EEXIST) { | |
167 | SysError("SetFS", "mkdir %s", fs1); | |
168 | } | |
169 | } | |
170 | ||
171 | fFS2 = fs2; | |
172 | if (fs2) { | |
173 | gSystem->ResetErrno(); | |
174 | gSystem->MakeDirectory(fs2); | |
175 | if (gSystem->GetErrno() && gSystem->GetErrno() != EEXIST) { | |
176 | SysError("SetFS", "mkdir %s", fs2); | |
177 | } | |
178 | } | |
179 | } | |
180 | ||
181 | //______________________________________________________________________________ | |
182 | Bool_t AliRawDB::Create(const char* fileName) | |
a197a4ce | 183 | { |
184 | // Create a new raw DB. | |
185 | ||
186 | const Int_t kMaxRetry = 200; | |
187 | const Int_t kMaxSleep = 1; // seconds | |
188 | const Int_t kMaxSleepLong = 10; // seconds | |
189 | Int_t retry = 0; | |
190 | ||
191 | again: | |
e10815f1 | 192 | if (fStop) return kFALSE; |
a197a4ce | 193 | |
e10815f1 | 194 | const char *fname = fileName; |
195 | if (!fname) fname = GetFileName(); | |
a197a4ce | 196 | if (!fname) { |
197 | Error("Create", "error getting raw DB file name"); | |
198 | return kFALSE; | |
199 | } | |
200 | ||
201 | retry++; | |
202 | ||
203 | fRawDB = TFile::Open(fname, GetOpenOption(), | |
e10815f1 | 204 | Form("ALICE MDC%d raw DB", kMDC), fCompress, |
a197a4ce | 205 | GetNetopt()); |
206 | if (!fRawDB) { | |
207 | if (retry < kMaxRetry) { | |
208 | Warning("Create", "failure to open file, 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 | if (retry > 1) | |
217 | Warning("Create", "succeeded to open file after %d retries", retry); | |
218 | ||
219 | if (fRawDB->IsZombie()) { | |
220 | if (fRawDB->GetErrno() == ENOSPC || | |
221 | fRawDB->GetErrno() == 1018 || // SECOMERR | |
222 | fRawDB->GetErrno() == 1027) { // SESYSERR | |
223 | fRawDB->ResetErrno(); | |
224 | delete fRawDB; | |
225 | Warning("Create", "file is a zombie (no space), sleeping %d %s before retrying...", | |
226 | kMaxSleepLong, kMaxSleepLong==1 ? "second" : "seconds"); | |
227 | gSystem->Sleep(kMaxSleepLong*1000); // sleep 10 seconds before retrying | |
228 | goto again; | |
229 | } | |
230 | Error("Create", "file %s is zombie", fname); | |
231 | fRawDB->ResetErrno(); | |
232 | delete fRawDB; | |
233 | fRawDB = 0; | |
234 | if (retry < kMaxRetry) { | |
235 | Warning("Create", "file is a zombie, sleeping %d %s before retrying...", | |
236 | kMaxSleep, kMaxSleep==1 ? "second" : "seconds"); | |
237 | gSystem->Sleep(kMaxSleep*1000); | |
238 | goto again; | |
239 | } | |
240 | Error("Create", "failure to open file %s after %d tries", fname, kMaxRetry); | |
241 | return kFALSE; | |
242 | } | |
243 | ||
244 | // Create raw data TTree | |
245 | MakeTree(); | |
246 | ||
247 | return kTRUE; | |
248 | } | |
249 | ||
250 | //______________________________________________________________________________ | |
251 | void AliRawDB::MakeTree() | |
252 | { | |
253 | // Create ROOT Tree object container. | |
254 | ||
e10815f1 | 255 | fTree = new TTree("RAW", Form("ALICE MDC%d raw data tree", kMDC)); |
a197a4ce | 256 | fTree->SetAutoSave(2000000000); // autosave when 2 Gbyte written |
257 | ||
258 | Int_t bufsize = 256000; | |
259 | // splitting 29.6 MB/s, no splitting 35.3 MB/s on P4 2GHz 15k SCSI | |
260 | //Int_t split = 1; | |
261 | Int_t split = 0; | |
262 | fTree->Branch("rawevent", "AliRawEvent", &fEvent, bufsize, split); | |
a109e73e | 263 | |
a109e73e | 264 | // Create tree which will contain the HLT ESD information |
265 | ||
e10815f1 | 266 | if (fESD) { |
267 | fESDTree = new TTree("esdTree", Form("ALICE MDC%d HLT ESD tree", kMDC)); | |
268 | fESDTree->SetAutoSave(2000000000); // autosave when 2 Gbyte written | |
269 | split = 99; | |
270 | fESDTree->Branch("ESD", "AliESD", &fESD, bufsize, split); | |
271 | } | |
a109e73e | 272 | |
a197a4ce | 273 | } |
274 | ||
275 | //______________________________________________________________________________ | |
276 | void AliRawDB::Close() | |
277 | { | |
278 | // Close raw DB. | |
279 | ||
280 | if (!fRawDB) return; | |
281 | ||
282 | fRawDB->cd(); | |
283 | ||
284 | // Write the tree. | |
285 | fTree->Write(); | |
e10815f1 | 286 | if (fESDTree) fESDTree->Write(); |
a197a4ce | 287 | |
288 | // Close DB, this also deletes the fTree | |
289 | fRawDB->Close(); | |
290 | ||
e10815f1 | 291 | if (fDeleteFiles) { |
a197a4ce | 292 | gSystem->Unlink(fRawDB->GetName()); |
293 | delete fRawDB; | |
294 | fRawDB = 0; | |
295 | return; | |
296 | } | |
297 | ||
298 | // Create semaphore to say this file is finished | |
299 | Int_t tfd = ::creat(Form("%s.done", fRawDB->GetName()), 0644); | |
300 | close(tfd); | |
301 | ||
302 | delete fRawDB; | |
303 | fRawDB = 0; | |
304 | } | |
305 | ||
e10815f1 | 306 | //______________________________________________________________________________ |
307 | Int_t AliRawDB::Fill() | |
308 | { | |
309 | // Fill the trees and return the number of written bytes | |
310 | ||
311 | Double_t bytes = fRawDB->GetBytesWritten(); | |
312 | fTree->Fill(); | |
313 | if (fESDTree) fESDTree->Fill(); | |
314 | return Int_t(fRawDB->GetBytesWritten() - bytes); | |
315 | } | |
316 | ||
b7d09bb3 | 317 | //______________________________________________________________________________ |
318 | void AliRawDB::WriteStats(AliStats* stats) | |
319 | { | |
320 | // Write stats to raw DB, local run DB and global MySQL DB. | |
321 | ||
322 | AliRawEventHeader &header = *GetEvent()->GetHeader(); | |
323 | ||
324 | // Write stats into RawDB | |
325 | TDirectory *ds = gDirectory; | |
326 | GetDB()->cd(); | |
327 | stats->SetEvents(GetEvents()); | |
328 | stats->SetLastId(header.GetRunNumber(), header.GetEventInRun()); | |
329 | stats->SetFileSize(GetBytesWritten()); | |
330 | stats->SetCompressionFactor(GetCompressionFactor()); | |
331 | stats->SetEndTime(); | |
332 | stats->Write("stats"); | |
333 | ds->cd(); | |
334 | } | |
335 | ||
a197a4ce | 336 | //______________________________________________________________________________ |
e10815f1 | 337 | Bool_t AliRawDB::NextFile(const char* fileName) |
a197a4ce | 338 | { |
339 | // Close te current file and open a new one. | |
340 | // Returns kFALSE in case opening failed. | |
341 | ||
342 | Close(); | |
343 | ||
e10815f1 | 344 | if (!Create(fileName)) return kFALSE; |
a197a4ce | 345 | return kTRUE; |
346 | } | |
347 | ||
348 | //______________________________________________________________________________ | |
349 | Float_t AliRawDB::GetCompressionFactor() const | |
350 | { | |
351 | // Return compression factor. | |
352 | ||
353 | if (fTree->GetZipBytes() == 0.) | |
354 | return 1.0; | |
355 | else | |
356 | return fTree->GetTotBytes()/fTree->GetZipBytes(); | |
357 | } |