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1 | /******************************************************************************* |
2 | * Copyright (c) 2010 Ericsson | |
3 | * | |
4 | * All rights reserved. This program and the accompanying materials are | |
5 | * made available under the terms of the Eclipse Public License v1.0 which | |
6 | * accompanies this distribution, and is available at | |
7 | * http://www.eclipse.org/legal/epl-v10.html | |
8 | * | |
9 | * Contributors: | |
10 | * Francois Chouinard - Initial API and implementation | |
11 | *******************************************************************************/ | |
12 | ||
6c13869b | 13 | package org.eclipse.linuxtools.lttng.core.trace; |
82e04272 | 14 | |
6c13869b FC |
15 | import org.eclipse.linuxtools.lttng.core.event.LttngEvent; |
16 | import org.eclipse.linuxtools.lttng.core.event.LttngTimestamp; | |
1b70b6dc | 17 | import org.eclipse.linuxtools.lttng.core.tracecontrol.utility.LiveTraceManager; |
a79913eb | 18 | import org.eclipse.linuxtools.lttng.jni.JniTrace; |
72f1e62a | 19 | import org.eclipse.linuxtools.tmf.core.event.ITmfEvent; |
4df4581d | 20 | import org.eclipse.linuxtools.tmf.core.event.ITmfTimestamp; |
6c13869b FC |
21 | import org.eclipse.linuxtools.tmf.core.event.TmfTimeRange; |
22 | import org.eclipse.linuxtools.tmf.core.event.TmfTimestamp; | |
23 | import org.eclipse.linuxtools.tmf.core.experiment.TmfExperiment; | |
24 | import org.eclipse.linuxtools.tmf.core.experiment.TmfExperimentContext; | |
25 | import org.eclipse.linuxtools.tmf.core.experiment.TmfExperimentLocation; | |
26 | import org.eclipse.linuxtools.tmf.core.request.ITmfDataRequest; | |
6c13869b | 27 | import org.eclipse.linuxtools.tmf.core.request.ITmfDataRequest.ExecutionType; |
4df4581d | 28 | import org.eclipse.linuxtools.tmf.core.request.TmfEventRequest; |
6c13869b FC |
29 | import org.eclipse.linuxtools.tmf.core.signal.TmfExperimentRangeUpdatedSignal; |
30 | import org.eclipse.linuxtools.tmf.core.signal.TmfSignalHandler; | |
31 | import org.eclipse.linuxtools.tmf.core.signal.TmfSignalManager; | |
32 | import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace; | |
33 | import org.eclipse.linuxtools.tmf.core.trace.TmfContext; | |
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34 | |
35 | /** | |
36 | * <b><u>LTTngExperiment</u></b> | |
37 | * <p> | |
38 | * Temporary class to resolve a basic incompatibility between TMF and LTTng. | |
39 | * <p> | |
40 | */ | |
72f1e62a | 41 | public class LTTngExperiment<T extends ITmfEvent> extends TmfExperiment<T> { |
82e04272 | 42 | |
a79913eb | 43 | private static final int DEFAULT_INDEX_PAGE_SIZE = 50000; |
82e04272 | 44 | |
a79913eb | 45 | // ------------------------------------------------------------------------ |
82e04272 FC |
46 | // Constructors |
47 | // ------------------------------------------------------------------------ | |
48 | ||
49 | /** | |
50 | * @param type | |
51 | * @param id | |
52 | * @param traces | |
53 | * @param epoch | |
54 | * @param indexPageSize | |
55 | */ | |
c64aa527 | 56 | public LTTngExperiment(Class<T> type, String id, ITmfTrace<T>[] traces, ITmfTimestamp epoch, int indexPageSize) { |
82e04272 | 57 | this(type, id, traces, TmfTimestamp.Zero, indexPageSize, false); |
a79913eb | 58 | } |
82e04272 | 59 | |
c64aa527 | 60 | public LTTngExperiment(Class<T> type, String id, ITmfTrace<T>[] traces, ITmfTimestamp epoch, int indexPageSize, boolean preIndexExperiment) { |
a79913eb FC |
61 | super(type, id, traces, epoch, indexPageSize, preIndexExperiment); |
62 | } | |
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63 | |
64 | /** | |
65 | * @param type | |
66 | * @param id | |
67 | * @param traces | |
68 | */ | |
12c155f5 | 69 | public LTTngExperiment(Class<T> type, String id, ITmfTrace<T>[] traces) { |
82e04272 FC |
70 | this(type, id, traces, TmfTimestamp.Zero, DEFAULT_INDEX_PAGE_SIZE); |
71 | } | |
72 | ||
73 | /** | |
74 | * @param type | |
75 | * @param id | |
76 | * @param traces | |
77 | * @param indexPageSize | |
78 | */ | |
12c155f5 | 79 | public LTTngExperiment(Class<T> type, String id, ITmfTrace<T>[] traces, int indexPageSize) { |
82e04272 FC |
80 | this(type, id, traces, TmfTimestamp.Zero, indexPageSize); |
81 | } | |
a79913eb | 82 | |
12c155f5 | 83 | @SuppressWarnings("unchecked") |
82e04272 | 84 | public LTTngExperiment(LTTngExperiment<T> other) { |
a79913eb FC |
85 | super(other.getName() + "(clone)", other.fType); //$NON-NLS-1$ |
86 | ||
87 | fEpoch = other.fEpoch; | |
88 | fIndexPageSize = other.fIndexPageSize; | |
89 | ||
90 | fTraces = new ITmfTrace[other.fTraces.length]; | |
91 | for (int trace = 0; trace < other.fTraces.length; trace++) { | |
12c155f5 | 92 | fTraces[trace] = other.fTraces[trace].copy(); |
a79913eb FC |
93 | } |
94 | ||
95 | fNbEvents = other.fNbEvents; | |
96 | fTimeRange = other.fTimeRange; | |
97 | } | |
98 | ||
99 | @Override | |
12c155f5 | 100 | public LTTngExperiment<T> copy() { |
a79913eb FC |
101 | LTTngExperiment<T> experiment = new LTTngExperiment<T>(this); |
102 | TmfSignalManager.deregister(experiment); | |
103 | return experiment; | |
82e04272 | 104 | } |
a79913eb FC |
105 | |
106 | // ------------------------------------------------------------------------ | |
82e04272 FC |
107 | // ITmfTrace trace positioning |
108 | // ------------------------------------------------------------------------ | |
109 | ||
a79913eb | 110 | @Override |
72f1e62a | 111 | public synchronized ITmfEvent getNextEvent(TmfContext context) { |
82e04272 | 112 | |
a79913eb FC |
113 | // Validate the context |
114 | if (!(context instanceof TmfExperimentContext)) { | |
115 | return null; // Throw an exception? | |
116 | } | |
82e04272 | 117 | |
a79913eb | 118 | if (!context.equals(fExperimentContext)) { |
82e04272 | 119 | // Tracer.trace("Ctx: Restoring context"); |
a79913eb FC |
120 | fExperimentContext = seekLocation(context.getLocation()); |
121 | } | |
122 | ||
123 | TmfExperimentContext expContext = (TmfExperimentContext) context; | |
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124 | |
125 | // dumpContext(expContext, true); | |
126 | ||
a79913eb FC |
127 | // If an event was consumed previously, get the next one from that trace |
128 | int lastTrace = expContext.getLastTrace(); | |
129 | if (lastTrace != TmfExperimentContext.NO_TRACE) { | |
130 | TmfContext traceContext = expContext.getContexts()[lastTrace]; | |
131 | expContext.getEvents()[lastTrace] = expContext.getTraces()[lastTrace].getNextEvent(traceContext); | |
132 | expContext.setLastTrace(TmfExperimentContext.NO_TRACE); | |
133 | } | |
134 | ||
135 | // Scan the candidate events and identify the "next" trace to read from | |
72f1e62a | 136 | ITmfEvent eventArray[] = expContext.getEvents(); |
a79913eb FC |
137 | if (eventArray == null) { |
138 | return null; | |
139 | } | |
140 | int trace = TmfExperimentContext.NO_TRACE; | |
4df4581d | 141 | ITmfTimestamp timestamp = TmfTimestamp.BigCrunch; |
a79913eb FC |
142 | if (eventArray.length == 1) { |
143 | if (eventArray[0] != null) { | |
144 | timestamp = eventArray[0].getTimestamp(); | |
145 | trace = 0; | |
146 | } | |
147 | } else { | |
148 | for (int i = 0; i < eventArray.length; i++) { | |
72f1e62a | 149 | ITmfEvent event = eventArray[i]; |
a79913eb | 150 | if (event != null && event.getTimestamp() != null) { |
4df4581d | 151 | ITmfTimestamp otherTS = event.getTimestamp(); |
a79913eb FC |
152 | if (otherTS.compareTo(timestamp, true) < 0) { |
153 | trace = i; | |
154 | timestamp = otherTS; | |
155 | } | |
156 | } | |
157 | } | |
158 | } | |
159 | ||
160 | // Update the experiment context and set the "next" event | |
72f1e62a | 161 | ITmfEvent event = null; |
a79913eb | 162 | if (trace != TmfExperimentContext.NO_TRACE) { |
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163 | // updateIndex(expContext, timestamp); |
164 | ||
a79913eb FC |
165 | TmfContext traceContext = expContext.getContexts()[trace]; |
166 | TmfExperimentLocation expLocation = (TmfExperimentLocation) expContext.getLocation(); | |
167 | expLocation.getLocation().locations[trace] = traceContext.getLocation(); | |
82e04272 | 168 | |
a79913eb | 169 | updateIndex(expContext, timestamp); |
82e04272 | 170 | |
a79913eb FC |
171 | expLocation.getRanks()[trace] = traceContext.getRank(); |
172 | expContext.setLastTrace(trace); | |
173 | expContext.updateRank(1); | |
174 | event = expContext.getEvents()[trace]; | |
175 | fExperimentContext = expContext; | |
176 | } | |
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177 | |
178 | // if (event != null) { | |
179 | // Tracer.trace("Exp: " + (expContext.getRank() - 1) + ": " + event.getTimestamp().toString()); | |
180 | // dumpContext(expContext, false); | |
181 | // Tracer.trace("Ctx: Event returned= " + event.getTimestamp().toString()); | |
182 | // } | |
183 | ||
a79913eb FC |
184 | return event; |
185 | } | |
186 | ||
187 | @SuppressWarnings("unchecked") | |
188 | @Override | |
189 | protected void indexExperiment(final boolean waitForCompletion) { | |
190 | if (waitForCompletion) { | |
191 | TmfExperimentRangeUpdatedSignal signal = new TmfExperimentRangeUpdatedSignal(LTTngExperiment.this, LTTngExperiment.this, | |
192 | TmfTimeRange.Eternity); | |
193 | broadcast(signal); | |
194 | while (isIndexingBusy()) { | |
195 | try { | |
196 | Thread.sleep(100); | |
197 | } catch (InterruptedException e) { | |
198 | e.printStackTrace(); | |
199 | } | |
200 | } | |
201 | ; | |
202 | return; | |
203 | } | |
4df4581d | 204 | for (ITmfTrace<?> trace : fTraces) { |
a79913eb FC |
205 | if (trace instanceof LTTngTrace) { |
206 | JniTrace jniTrace = ((LTTngTrace) trace).getCurrentJniTrace(); | |
1b70b6dc | 207 | if (jniTrace != null && (!jniTrace.isLiveTraceSupported() || !LiveTraceManager.isLiveTrace(jniTrace.getTracepath()))) { |
a79913eb FC |
208 | updateTimeRange(); |
209 | TmfExperimentRangeUpdatedSignal signal = new TmfExperimentRangeUpdatedSignal(LTTngExperiment.this, LTTngExperiment.this, | |
210 | getTimeRange()); | |
211 | broadcast(signal); | |
212 | return; | |
213 | } | |
214 | } | |
215 | } | |
216 | final Thread thread = new Thread("Streaming Monitor for " + getName()) { //$NON-NLS-1$ | |
217 | LttngTimestamp safeTimestamp = null; | |
218 | TmfTimeRange timeRange = null; | |
82e04272 | 219 | |
a79913eb FC |
220 | @Override |
221 | public void run() { | |
222 | while (!fExecutor.isShutdown()) { | |
223 | final TmfEventRequest<LttngEvent> request = new TmfEventRequest<LttngEvent>(LttngEvent.class, TmfTimeRange.Eternity, 0, | |
224 | ExecutionType.FOREGROUND) { | |
225 | @Override | |
226 | public void handleCompleted() { | |
227 | super.handleCompleted(); | |
228 | if (isIndexingBusy()) { | |
229 | timeRange = null; | |
230 | return; | |
231 | } | |
232 | long startTime = Long.MAX_VALUE; | |
233 | long endTime = Long.MIN_VALUE; | |
4df4581d | 234 | for (ITmfTrace<?> trace : getTraces()) { |
a79913eb FC |
235 | if (trace instanceof LTTngTrace) { |
236 | LTTngTrace lttngTrace = (LTTngTrace) trace; | |
237 | JniTrace jniTrace = lttngTrace.getCurrentJniTrace(); | |
238 | jniTrace.updateTrace(); | |
74237cc3 | 239 | startTime = Math.min(startTime, lttngTrace.getStartTime().getValue()); |
a79913eb FC |
240 | endTime = Math.max(endTime, jniTrace.getEndTime().getTime()); |
241 | } | |
242 | } | |
243 | LttngTimestamp startTimestamp = new LttngTimestamp(startTime); | |
244 | LttngTimestamp endTimestamp = new LttngTimestamp(endTime); | |
245 | if (safeTimestamp != null && safeTimestamp.compareTo(getTimeRange().getEndTime(), false) > 0) { | |
246 | timeRange = new TmfTimeRange(startTimestamp, safeTimestamp); | |
247 | } else { | |
248 | timeRange = null; | |
249 | } | |
250 | safeTimestamp = endTimestamp; | |
251 | } | |
252 | }; | |
253 | try { | |
254 | sendRequest((ITmfDataRequest<T>) request); | |
255 | request.waitForCompletion(); | |
b626c6f7 | 256 | if (timeRange != null && !timeRange.equals(TmfTimeRange.Null)) { |
a79913eb FC |
257 | TmfExperimentRangeUpdatedSignal signal = new TmfExperimentRangeUpdatedSignal(LTTngExperiment.this, LTTngExperiment.this, |
258 | timeRange); | |
259 | broadcast(signal); | |
260 | } | |
74237cc3 | 261 | Thread.sleep(2000); |
a79913eb FC |
262 | } catch (InterruptedException e) { |
263 | e.printStackTrace(); | |
264 | } | |
265 | } | |
266 | } | |
267 | }; | |
268 | thread.start(); | |
269 | } | |
270 | ||
f4c52cea | 271 | @Override |
a79913eb FC |
272 | @TmfSignalHandler |
273 | public void experimentRangeUpdated(TmfExperimentRangeUpdatedSignal signal) { | |
09d11238 PT |
274 | if (signal.getExperiment() == this) { |
275 | indexExperiment(false, (int) fNbEvents, signal.getRange()); | |
276 | } | |
a79913eb FC |
277 | } |
278 | ||
279 | /* | |
280 | * (non-Javadoc) | |
281 | * | |
282 | * @see java.lang.Object#toString() | |
283 | */ | |
284 | @Override | |
3b38ea61 | 285 | @SuppressWarnings("nls") |
a79913eb FC |
286 | public String toString() { |
287 | return "[LTTngExperiment (" + getName() + ")]"; | |
288 | } | |
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289 | |
290 | } |