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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 | /// | |
18 | /// This is a class for reading raw data from a date monitoring libraries. | |
19 | /// It supports two modes - event taken from shared memory via DATE monitoring | |
20 | /// libs, or an emulation mode when the events are taken from a DATE file using | |
21 | /// the same monitoring libs. | |
22 | /// The constructor requires an argument: | |
23 | /// | |
24 | /// : - events are taken from shared memory | |
25 | /// or | |
26 | /// <DATE_filename> - events are taken from date file | |
27 | /// | |
28 | /// Cvetan Cheshkov 1/04/2008 | |
29 | /////////////////////////////////////////////////////////////////////////////// | |
30 | #include <TSystem.h> | |
31 | #include <cstdlib> | |
32 | #include "AliRawReaderDateOnline.h" | |
33 | #include "AliLog.h" | |
34 | #ifdef ALI_DATE | |
35 | #include "event.h" | |
36 | #include "monitor.h" | |
37 | #endif | |
38 | ||
39 | ClassImp(AliRawReaderDateOnline) | |
40 | ||
41 | Bool_t AliRawReaderDateOnline::fgNoSleep = kTRUE; | |
42 | ||
43 | AliRawReaderDateOnline::AliRawReaderDateOnline( | |
44 | #ifdef ALI_DATE | |
45 | const char* filename | |
46 | #else | |
47 | const char* /* filename */ | |
48 | #endif | |
49 | , const Char_t** customTable) : | |
50 | AliRawReaderDate((void*)NULL), | |
51 | fTable(customTable), | |
52 | fStop(kFALSE) | |
53 | { | |
54 | ||
55 | // Constructor | |
56 | // Initialize the DATE monitoring libs | |
57 | ||
58 | #ifdef ALI_DATE | |
59 | ||
60 | ||
61 | // Removal of the selection of physics events | |
62 | // Requested by Filimon and FMD experts | |
63 | // fSelectEventType = PHYSICS_EVENT; | |
64 | ||
65 | int status; | |
66 | ||
67 | /* define data source : this is argument 1 */ | |
68 | status=monitorSetDataSource( (char* )filename ); | |
69 | if (status!=0) { | |
70 | AliFatal(Form("monitorSetDataSource() failed : %s",monitorDecodeError(status))); | |
71 | } | |
72 | ||
73 | /* declare monitoring program */ | |
74 | status=monitorDeclareMp( __FILE__ ); | |
75 | if (status!=0) { | |
76 | AliFatal(Form("monitorDeclareMp() failed : %s",monitorDecodeError(status))); | |
77 | } | |
78 | ||
79 | /* define wait event timeout - 1s max */ | |
80 | monitorSetNowait(); | |
81 | monitorSetNoWaitNetworkTimeout(1000); | |
82 | ||
83 | if (!fTable) { | |
84 | const Char_t* table[] = {"ALL", "few", "*", "*", | |
85 | "EOR", "yes","*", "*", | |
86 | NULL, NULL, NULL, NULL}; | |
87 | monitorDeclareTableExtended(const_cast<char**>(table)); | |
88 | } | |
89 | else { | |
90 | AliInfo("Custom monitoring table:"); | |
91 | Int_t index = 0; | |
92 | while (fTable[index] != NULL) { | |
93 | AliInfo(Form("%s %s %s %s",fTable[index],fTable[index+1],fTable[index+2],fTable[index+3])); | |
94 | index += 4; | |
95 | } | |
96 | monitorDeclareTableExtended(const_cast<char**>(fTable)); | |
97 | } | |
98 | // install SIGUSR1 handler to allow clean end-of-events loop | |
99 | gSystem->AddSignalHandler(new AliRawReaderDateIntHandler(this)); | |
100 | ||
101 | #else | |
102 | Fatal("AliRawReaderDateOnline", "this class was compiled without DATE"); | |
103 | #endif | |
104 | } | |
105 | ||
106 | Bool_t AliRawReaderDateOnline::NextEvent() | |
107 | { | |
108 | // wait and get the next event | |
109 | // from shared memory | |
110 | ||
111 | #ifdef ALI_DATE | |
112 | ||
113 | // Stop on SIGUSR1 | |
114 | if (fStop) { | |
115 | AliInfo("Raw-data reading stopped by SIGUSR1"); | |
116 | if (fEvent) free(fEvent); | |
117 | fEvent = NULL; | |
118 | return kFALSE; | |
119 | } | |
120 | ||
121 | // Event already loaded no need take a new one | |
122 | if (AliRawReaderDate::NextEvent()) return kTRUE; | |
123 | ||
124 | if (fEvent) free(fEvent); | |
125 | fEvent = NULL; | |
126 | ||
127 | while (1) { | |
128 | /* get next event (blocking call until timeout) */ | |
129 | int status=monitorGetEventDynamic((void**)&fEvent); | |
130 | ||
131 | if (status==MON_ERR_EOF) { | |
132 | AliInfo("End of File detected"); | |
133 | Reset(); | |
134 | fEvent = NULL; | |
135 | return kFALSE; /* end of monitoring file has been reached */ | |
136 | } | |
137 | ||
138 | if (status!=0) { | |
139 | AliError(Form("monitorGetEventDynamic() failed : %s\n",monitorDecodeError(status))); | |
140 | Reset(); | |
141 | fEvent = NULL; | |
142 | return kFALSE; | |
143 | } | |
144 | ||
145 | /* retry if got no event */ | |
146 | if (fEvent==NULL) { | |
147 | if (fgNoSleep) gSystem->ProcessEvents(); | |
148 | continue; | |
149 | } | |
150 | ||
151 | eventTypeType eventT=fEvent->eventType; | |
152 | /* exit when last event received, no need to wait for TERM signal */ | |
153 | if (eventT==END_OF_RUN) { | |
154 | AliInfo("EOR event detected"); | |
155 | Reset(); | |
156 | free(fEvent); | |
157 | fEvent = NULL; | |
158 | return kFALSE; | |
159 | } | |
160 | ||
161 | if (!IsEventSelected()) { | |
162 | free(fEvent); | |
163 | fEvent = NULL; | |
164 | if (fgNoSleep) gSystem->ProcessEvents(); | |
165 | continue; | |
166 | } | |
167 | ||
168 | AliInfo(Form("Run #%lu, event size: %lu, BC:0x%x, Orbit:0x%x, Period:0x%x", | |
169 | (unsigned long)fEvent->eventRunNb, | |
170 | (unsigned long)fEvent->eventSize, | |
171 | EVENT_ID_GET_BUNCH_CROSSING(fEvent->eventId), | |
172 | EVENT_ID_GET_ORBIT(fEvent->eventId), | |
173 | EVENT_ID_GET_PERIOD(fEvent->eventId) | |
174 | )); | |
175 | break; | |
176 | } | |
177 | ||
178 | fEventNumber++; | |
179 | Reset(); | |
180 | ||
181 | return kTRUE; | |
182 | ||
183 | } | |
184 | ||
185 | #else | |
186 | return kFALSE; | |
187 | } | |
188 | #endif | |
189 | ||
190 | AliRawReaderDateOnline::~AliRawReaderDateOnline() | |
191 | { | |
192 | // Destructor | |
193 | // Free the last event in shared memory | |
194 | ||
195 | #ifdef ALI_DATE | |
196 | if (fEvent) free(fEvent); | |
197 | #endif | |
198 | } | |
199 | ||
200 | void AliRawReaderDateOnline::SelectEvents(Int_t type, | |
201 | ULong64_t triggerMask, | |
202 | const char *triggerExpr) | |
203 | { | |
204 | // Select event by using DATE monitoring | |
205 | // library | |
206 | #ifdef ALI_DATE | |
207 | const Char_t* table[] = {"ALL", "no", "*", "*", | |
208 | "PHY", "yes","*", "*", | |
209 | "EOR", "yes","*", "*", | |
210 | NULL, NULL, NULL, NULL}; | |
211 | TString trSelection; | |
212 | for (Int_t i = 0; i < 50; i++) { | |
213 | if (triggerMask & (1ull << i)) { | |
214 | if (!trSelection.IsNull()) trSelection += "&"; | |
215 | trSelection += Form("%d",i); | |
216 | } | |
217 | } | |
218 | table[7] = trSelection.Data(); | |
219 | ||
220 | monitorLogout(); | |
221 | monitorDeclareTableExtended(const_cast<char**>(table)); | |
222 | ||
223 | #endif | |
224 | AliRawReader::SelectEvents(type,triggerMask,triggerExpr); | |
225 | } | |
226 | ||
227 | //______________________________________________________________________________ | |
228 | void AliRawReaderDateOnline::Stop() | |
229 | { | |
230 | // Stop the event loop (called on SIGUSR1) | |
231 | ||
232 | fStop = kTRUE; | |
233 | } |