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