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48265b32 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | /* | |
17 | $Log$ | |
18 | */ | |
19 | ||
20 | #include "AliTPCMonitorDateFile.h" | |
21 | ||
22 | ClassImp(AliTPCMonitorDateFile) | |
23 | ||
24 | //____________________________________________________________________________ | |
25 | AliTPCMonitorDateFile::AliTPCMonitorDateFile() | |
26 | { | |
27 | // Constructor | |
28 | fin = new ifstream(); | |
29 | fisBigMemAllocated = false; | |
30 | freadPosOverflow = false; | |
31 | ffilePos = 0; | |
32 | ffileSize = 0; | |
33 | fbigMemsize = 0; | |
34 | finitFile = false; | |
35 | ffilename = ""; | |
36 | } | |
37 | ||
38 | //____________________________________________________________________________ | |
39 | AliTPCMonitorDateFile::~AliTPCMonitorDateFile() | |
40 | { | |
41 | // Destructor | |
42 | delete fin; | |
43 | if(fisBigMemAllocated == true){ | |
44 | delete[] fbigMem; | |
45 | } | |
46 | } | |
47 | ||
48 | //____________________________________________________________________________ | |
49 | void AliTPCMonitorDateFile::OpenDateFile(string name) | |
50 | { | |
51 | // Open DATE file | |
52 | if( (ffilename != name) && (finitFile == true) ) { | |
53 | CloseDateFile(); | |
54 | ResetFilePos(); | |
55 | } | |
56 | fin->open(name.c_str()); | |
57 | ffilename = name; | |
58 | SetFileSize(); | |
59 | finitFile = true; | |
60 | } | |
61 | ||
62 | //____________________________________________________________________________ | |
63 | Bool_t AliTPCMonitorDateFile::IsDateFileOpen() | |
64 | { | |
65 | // Check if DATE file is open | |
66 | return fin->is_open(); | |
67 | } | |
68 | ||
69 | //____________________________________________________________________________ | |
70 | void AliTPCMonitorDateFile::CloseDateFile() | |
71 | { | |
72 | // Close DATE file | |
73 | fin->close(); | |
74 | freadPosOverflow = false; | |
75 | delete fin; | |
76 | fin = new ifstream(); | |
77 | } | |
78 | ||
79 | //____________________________________________________________________________ | |
80 | void AliTPCMonitorDateFile::ResetFilePos() | |
81 | { | |
82 | // Reset file position | |
83 | ffilePos = 0; | |
84 | } | |
85 | ||
86 | //____________________________________________________________________________ | |
87 | void AliTPCMonitorDateFile::SetFileSize() | |
88 | { | |
89 | // Set size of DATE file | |
90 | fin->seekg (0, ios::end); | |
91 | ffileSize = fin->tellg(); | |
92 | fin->seekg (0, ios::beg); | |
93 | } | |
94 | ||
95 | //____________________________________________________________________________ | |
96 | Int_t AliTPCMonitorDateFile::GetFileSize() | |
97 | { | |
98 | // Return size of DATE file | |
99 | return ffileSize; | |
100 | } | |
101 | ||
102 | //____________________________________________________________________________ | |
103 | void AliTPCMonitorDateFile::ReadEvent() | |
104 | { | |
105 | // Read in event from file | |
106 | Int_t size; | |
107 | Char_t swapcarry[4]; | |
108 | Bool_t toSwapEndian = false; | |
109 | //Fetch some bytes to get headers to know how much | |
110 | fin->seekg(ffilePos); | |
111 | //if( (getFilePosition() + sizeof(fmem)) <= (unsigned int)getFileSize()){ | |
112 | UInt_t sfmem = 272; | |
113 | if( (GetFilePosition() + sfmem) <= (UInt_t)GetFileSize()){ | |
114 | ||
115 | ||
116 | fin->read((Char_t*)fmem,sfmem); | |
117 | fin->seekg(ffilePos); | |
118 | AliTPCMonitorDateFormat *DateForm; | |
119 | DateForm = new AliTPCMonitorDateFormat((Char_t *)&fmem); | |
120 | ||
121 | ||
122 | ||
123 | toSwapEndian = DateForm->IsEventWrongEndian(); | |
124 | if(toSwapEndian == true){ | |
125 | delete DateForm; | |
126 | for(Int_t i = 0; i < 68; i++) { | |
127 | swapcarry[0] = fmem[(i*4)+0]; | |
128 | swapcarry[1] = fmem[(i*4)+1]; | |
129 | swapcarry[2] = fmem[(i*4)+2]; | |
130 | swapcarry[3] = fmem[(i*4)+3]; | |
131 | fmem[(i*4)+0] = swapcarry[3]; | |
132 | fmem[(i*4)+1] = swapcarry[2]; | |
133 | fmem[(i*4)+2] = swapcarry[1]; | |
134 | fmem[(i*4)+3] = swapcarry[0]; | |
135 | } | |
136 | DateForm = new AliTPCMonitorDateFormat((Char_t *)&fmem); | |
137 | } | |
138 | size = DateForm->GetEventSize(); | |
139 | if(size > GetAllocatedSizeofArray()) { | |
140 | AllocateArray((Int_t)(size*1.1)); | |
141 | } | |
142 | if( (GetFilePosition() + size) <= GetFileSize()){ | |
143 | fin->read((Char_t*)fbigMem,size); | |
144 | if(toSwapEndian == true){ | |
145 | for(Int_t i = 0; i < (size/4); i++) { | |
146 | swapcarry[0] = fbigMem[(i*4)+0]; | |
147 | swapcarry[1] = fbigMem[(i*4)+1]; | |
148 | swapcarry[2] = fbigMem[(i*4)+2]; | |
149 | swapcarry[3] = fbigMem[(i*4)+3]; | |
150 | fbigMem[(i*4)+0] = swapcarry[3]; | |
151 | fbigMem[(i*4)+1] = swapcarry[2]; | |
152 | fbigMem[(i*4)+2] = swapcarry[1]; | |
153 | fbigMem[(i*4)+3] = swapcarry[0]; | |
154 | } | |
155 | } | |
156 | ffilePos += size; | |
157 | }else{ | |
158 | freadPosOverflow = true; | |
159 | } | |
160 | delete DateForm; | |
161 | }else{ | |
162 | freadPosOverflow = true; | |
163 | } | |
164 | } | |
165 | ||
166 | //____________________________________________________________________________ | |
167 | Bool_t AliTPCMonitorDateFile::IsLastEvent() | |
168 | { | |
169 | // Check if event is last event in file | |
170 | Bool_t retval; | |
171 | if( (ffilePos < ffileSize) && (freadPosOverflow == false) ) | |
172 | retval = false; | |
173 | else | |
174 | retval = true; | |
175 | return retval; | |
176 | } | |
177 | ||
178 | //____________________________________________________________________________ | |
179 | Bool_t AliTPCMonitorDateFile::IsEventValid() | |
180 | { | |
181 | // Check Over flow flag | |
182 | Bool_t retval; | |
183 | if(freadPosOverflow == false) | |
184 | retval = true; | |
185 | else | |
186 | retval = false; | |
187 | return retval; | |
188 | } | |
189 | ||
190 | //____________________________________________________________________________ | |
191 | Int_t AliTPCMonitorDateFile::GetFilePosition() | |
192 | { | |
193 | // Return current position in file | |
194 | return ffilePos; | |
195 | } | |
196 | ||
197 | //____________________________________________________________________________ | |
198 | Int_t AliTPCMonitorDateFile::GetAllocatedSizeofArray() | |
199 | { | |
200 | // Return size of allocated data array | |
201 | return fbigMemsize; | |
202 | } | |
203 | ||
204 | //____________________________________________________________________________ | |
205 | void AliTPCMonitorDateFile::AllocateArray(Int_t size) | |
206 | { | |
207 | // allocate data array | |
208 | if(fisBigMemAllocated == false) { | |
209 | fbigMem = new Char_t[size]; | |
210 | fbigMemsize = size; | |
211 | fisBigMemAllocated = true; | |
212 | } else { | |
213 | delete fbigMem; | |
214 | fbigMem = new Char_t[size]; | |
215 | fbigMemsize = size; | |
216 | fisBigMemAllocated = true; | |
217 | } | |
218 | } | |
219 | ||
220 | //____________________________________________________________________________ | |
221 | Char_t *AliTPCMonitorDateFile::GetMemoryPointer() | |
222 | { | |
223 | // Return pointer to data array | |
224 | return fbigMem; | |
225 | } | |
226 |