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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 | // AliTagDB // | |
22 | // // | |
23 | ////////////////////////////////////////////////////////////////////////// | |
24 | ||
e10815f1 | 25 | #include <errno.h> |
26 | ||
a197a4ce | 27 | #include <TSystem.h> |
28 | ||
e10815f1 | 29 | #include "AliRawDB.h" |
a197a4ce | 30 | |
31 | #include "AliTagDB.h" | |
32 | ||
33 | ||
34 | ClassImp(AliTagDB) | |
35 | ||
36 | ||
37 | //______________________________________________________________________________ | |
e10815f1 | 38 | AliTagDB::AliTagDB(AliRawEventHeader *header, const char* fileName) : |
39 | fTagDB(NULL), | |
40 | fTree(NULL), | |
41 | fHeader(header), | |
42 | fMaxSize(-1), | |
43 | fFS(""), | |
44 | fDeleteFiles(kFALSE) | |
a197a4ce | 45 | { |
46 | // Create tag DB. | |
47 | ||
e10815f1 | 48 | if (fileName) { |
49 | if (!Create(fileName)) | |
a197a4ce | 50 | MakeZombie(); |
51 | } | |
52 | } | |
53 | ||
54 | //______________________________________________________________________________ | |
55 | AliTagDB::AliTagDB(const AliTagDB& tagDB): TObject(tagDB) | |
56 | { | |
57 | // copy constructor | |
58 | ||
59 | Fatal("AliTagDB", "copy constructor not implemented"); | |
60 | } | |
61 | ||
62 | //______________________________________________________________________________ | |
63 | AliTagDB& AliTagDB::operator = (const AliTagDB& /*tagDB*/) | |
64 | { | |
65 | // assignment operator | |
66 | ||
67 | Fatal("operator =", "assignment operator not implemented"); | |
68 | return *this; | |
69 | } | |
70 | ||
71 | //______________________________________________________________________________ | |
e10815f1 | 72 | Bool_t AliTagDB::Create(const char* fileName) |
a197a4ce | 73 | { |
74 | // Create a new tag DB. | |
75 | ||
e10815f1 | 76 | const char *name = fileName; |
77 | if (!name) name = GetFileName(); | |
78 | fTagDB = new TFile(name, "RECREATE", | |
79 | Form("ALICE MDC%d tag DB", AliRawDB::kMDC), 1); | |
a197a4ce | 80 | if (fTagDB->IsZombie()) { |
81 | Error("Create", "error opening tag DB"); | |
82 | fTagDB = 0; | |
83 | return kFALSE; | |
84 | } | |
85 | ||
86 | // Create ROOT Tree object container | |
e10815f1 | 87 | fTree = new TTree("TAG", Form("ALICE MDC%d header data tree", AliRawDB::kMDC)); |
a197a4ce | 88 | fTree->SetAutoSave(100000000); // autosave when 100 Mbyte written |
89 | ||
90 | Int_t bufsize = 32000; | |
91 | Int_t split = 1; | |
92 | fTree->Branch("header", "AliRawEventHeader", &fHeader, bufsize, split); | |
93 | ||
94 | return kTRUE; | |
95 | } | |
96 | ||
97 | //______________________________________________________________________________ | |
98 | void AliTagDB::Close() | |
99 | { | |
100 | // Close tag DB. | |
101 | ||
102 | if (!fTagDB) return; | |
103 | ||
104 | fTagDB->cd(); | |
105 | ||
106 | // Write the tree. | |
107 | fTree->Write(); | |
108 | ||
109 | // Close DB, this also deletes the fTree | |
110 | fTagDB->Close(); | |
111 | ||
e10815f1 | 112 | if (fDeleteFiles) |
a197a4ce | 113 | gSystem->Unlink(fTagDB->GetName()); |
114 | ||
115 | delete fTagDB; | |
116 | fTagDB = 0; | |
117 | } | |
118 | ||
119 | //______________________________________________________________________________ | |
e10815f1 | 120 | Bool_t AliTagDB::NextFile(const char* fileName) |
a197a4ce | 121 | { |
122 | // Close te current file and open a new one. | |
123 | // Returns kFALSE in case opening failed. | |
124 | ||
125 | Close(); | |
126 | ||
e10815f1 | 127 | if (!Create(fileName)) return kFALSE; |
a197a4ce | 128 | return kTRUE; |
129 | } | |
130 | ||
e10815f1 | 131 | //______________________________________________________________________________ |
132 | void AliTagDB::SetFS(const char* fs) | |
133 | { | |
134 | // set the file system location | |
135 | ||
136 | fFS = fs; | |
137 | if (fs) { | |
138 | gSystem->ResetErrno(); | |
139 | gSystem->MakeDirectory(fs); | |
140 | if (gSystem->GetErrno() && gSystem->GetErrno() != EEXIST) { | |
141 | SysError("SetFS", "mkdir %s", fs); | |
142 | } | |
143 | } | |
144 | } | |
145 | ||
a197a4ce | 146 | //______________________________________________________________________________ |
147 | Float_t AliTagDB::GetCompressionFactor() const | |
148 | { | |
149 | // Return compression factor. | |
150 | ||
151 | if (fTree->GetZipBytes() == 0.) | |
152 | return 1.0; | |
153 | else | |
154 | return fTree->GetTotBytes()/fTree->GetZipBytes(); | |
155 | } | |
156 | ||
157 | //______________________________________________________________________________ | |
158 | const char *AliTagDB::GetFileName() const | |
159 | { | |
160 | // Return filename based on hostname and date and time. This will make | |
161 | // each file unique. The tags will be stored in the /data1/tags directory. | |
162 | ||
163 | static char fname[64]; | |
e10815f1 | 164 | const char *fs = fFS; |
a197a4ce | 165 | |
166 | // check that fs exists (crude check fails if fs is a file) | |
167 | gSystem->MakeDirectory(fs); | |
168 | ||
169 | char hostname[64]; | |
170 | ||
171 | strcpy(hostname, gSystem->HostName()); | |
172 | ||
173 | char *s; | |
174 | if ((s = strchr(hostname, '.'))) | |
175 | *s = 0; | |
176 | ||
177 | TDatime dt; | |
178 | ||
179 | sprintf(fname, "%s/%s_%d_%d.root", fs, hostname, dt.GetDate(), dt.GetTime()); | |
180 | ||
181 | return fname; | |
182 | } |