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