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5d10d135 | 1 | /******************************************************************************* |
a3767fd9 | 2 | * Copyright (c) 2009, 2011 Ericsson, MontaVista Software |
5d10d135 ASL |
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 | * William Bourque (wbourque@gmail.com) - Initial API and implementation | |
a3767fd9 | 11 | * Yufen Kuo (ykuo@mvista.com) - add support to allow user specify trace library path |
5d10d135 ASL |
12 | *******************************************************************************/ |
13 | ||
5945cec9 | 14 | package org.eclipse.linuxtools.internal.lttng.core.trace; |
5d10d135 | 15 | |
12c155f5 | 16 | import java.io.FileNotFoundException; |
28b94d61 FC |
17 | import java.util.HashMap; |
18 | import java.util.Iterator; | |
19 | import java.util.Vector; | |
20 | ||
12c155f5 | 21 | import org.eclipse.core.resources.IProject; |
25e48683 | 22 | import org.eclipse.core.resources.IResource; |
5945cec9 FC |
23 | import org.eclipse.linuxtools.internal.lttng.core.TraceHelper; |
24 | import org.eclipse.linuxtools.internal.lttng.core.event.LttngEvent; | |
25 | import org.eclipse.linuxtools.internal.lttng.core.event.LttngEventContent; | |
26 | import org.eclipse.linuxtools.internal.lttng.core.event.LttngEventType; | |
27 | import org.eclipse.linuxtools.internal.lttng.core.event.LttngLocation; | |
28 | import org.eclipse.linuxtools.internal.lttng.core.event.LttngTimestamp; | |
29 | import org.eclipse.linuxtools.internal.lttng.core.exceptions.LttngException; | |
30 | import org.eclipse.linuxtools.internal.lttng.core.tracecontrol.utility.LiveTraceManager; | |
ce38c104 | 31 | import org.eclipse.linuxtools.internal.lttng.jni.common.JniTime; |
5d10d135 | 32 | import org.eclipse.linuxtools.lttng.jni.JniEvent; |
28b94d61 | 33 | import org.eclipse.linuxtools.lttng.jni.JniMarker; |
5d10d135 | 34 | import org.eclipse.linuxtools.lttng.jni.JniTrace; |
28b94d61 | 35 | import org.eclipse.linuxtools.lttng.jni.JniTracefile; |
004f471b | 36 | import org.eclipse.linuxtools.lttng.jni.factory.JniTraceFactory; |
4df4581d | 37 | import org.eclipse.linuxtools.tmf.core.event.ITmfTimestamp; |
1b70b6dc | 38 | import org.eclipse.linuxtools.tmf.core.event.TmfEvent; |
6c13869b FC |
39 | import org.eclipse.linuxtools.tmf.core.event.TmfTimeRange; |
40 | import org.eclipse.linuxtools.tmf.core.event.TmfTimestamp; | |
1b70b6dc PT |
41 | import org.eclipse.linuxtools.tmf.core.experiment.TmfExperiment; |
42 | import org.eclipse.linuxtools.tmf.core.request.ITmfDataRequest.ExecutionType; | |
43 | import org.eclipse.linuxtools.tmf.core.request.TmfEventRequest; | |
44 | import org.eclipse.linuxtools.tmf.core.signal.TmfTraceUpdatedSignal; | |
6c13869b FC |
45 | import org.eclipse.linuxtools.tmf.core.trace.ITmfContext; |
46 | import org.eclipse.linuxtools.tmf.core.trace.ITmfLocation; | |
6c13869b FC |
47 | import org.eclipse.linuxtools.tmf.core.trace.TmfContext; |
48 | import org.eclipse.linuxtools.tmf.core.trace.TmfTrace; | |
5d10d135 | 49 | |
3fbd810a | 50 | class LTTngTraceException extends LttngException { |
cbdacf03 | 51 | |
12c155f5 | 52 | static final long serialVersionUID = -1636648737081868146L; |
3fbd810a | 53 | |
cbdacf03 | 54 | public LTTngTraceException(final String errMsg) { |
12c155f5 FC |
55 | super(errMsg); |
56 | } | |
3fbd810a FC |
57 | } |
58 | ||
5d10d135 | 59 | /** |
64fe8e8a FC |
60 | * <b><u>LTTngTrace</u></b> |
61 | * <p> | |
07d9e2ee | 62 | * |
cbdacf03 FC |
63 | * LTTng trace implementation. It accesses the C trace handling library |
64 | * (seeking, reading and parsing) through the JNI component. | |
5d10d135 | 65 | */ |
e31e01e8 | 66 | public class LTTngTrace extends TmfTrace<LttngEvent> { |
9b635e61 | 67 | |
212550ba FC |
68 | public final static boolean PRINT_DEBUG = false; |
69 | public final static boolean UNIQUE_EVENT = true; | |
12c155f5 FC |
70 | |
71 | private final static boolean SHOW_LTT_DEBUG_DEFAULT = false; | |
212550ba | 72 | private final static boolean IS_PARSING_NEEDED_DEFAULT = !UNIQUE_EVENT; |
12c155f5 | 73 | private final static int CHECKPOINT_PAGE_SIZE = 50000; |
1b70b6dc | 74 | private final static long LTTNG_STREAMING_INTERVAL = 2000; // in ms |
12c155f5 FC |
75 | |
76 | // Reference to our JNI trace | |
c5b45b39 FC |
77 | private JniTrace currentJniTrace; |
78 | ||
79 | LttngTimestamp eventTimestamp; | |
99005796 | 80 | String eventSource; |
c5b45b39 | 81 | LttngEventContent eventContent; |
4641c2f7 | 82 | String eventReference; |
12c155f5 FC |
83 | |
84 | // The actual event | |
c5b45b39 | 85 | LttngEvent currentLttngEvent; |
12c155f5 FC |
86 | |
87 | // The current location | |
c5b45b39 FC |
88 | LttngLocation previousLocation; |
89 | ||
90 | LttngEventType eventType; | |
12c155f5 | 91 | |
12c155f5 | 92 | // Hashmap of the possible types of events (Tracefile/CPU/Marker in the JNI) |
c5b45b39 | 93 | HashMap<Integer, LttngEventType> traceTypes; |
cbdacf03 | 94 | |
12c155f5 | 95 | // This vector will be used to quickly find a marker name from a position |
c5b45b39 | 96 | Vector<Integer> traceTypeNames; |
cbdacf03 | 97 | |
c5b45b39 | 98 | private String traceLibPath; |
12c155f5 FC |
99 | |
100 | public LTTngTrace() { | |
101 | } | |
102 | ||
f4c52cea | 103 | @Override |
cbdacf03 | 104 | public boolean validate(final IProject project, final String path) { |
12c155f5 | 105 | if (super.validate(project, path)) { |
cbdacf03 | 106 | final String traceLibPath = TraceHelper.getTraceLibDirFromProject(project); |
12c155f5 | 107 | try { |
cbdacf03 | 108 | final LTTngTraceVersion version = new LTTngTraceVersion(path, traceLibPath); |
12c155f5 | 109 | return version.isValidLttngTrace(); |
cbdacf03 | 110 | } catch (final LttngException e) { |
12c155f5 FC |
111 | } |
112 | } | |
113 | return false; | |
114 | } | |
115 | ||
f4c52cea | 116 | @Override |
25e48683 | 117 | public synchronized void initTrace(final IResource resource, final String path, final Class<LttngEvent> eventType) |
cbdacf03 | 118 | throws FileNotFoundException { |
09e86496 FC |
119 | super.initialize(resource, path, eventType); |
120 | initialize(resource, path, eventType); | |
121 | } | |
122 | ||
123 | @Override | |
124 | protected synchronized void initialize(final IResource resource, final String path, final Class<LttngEvent> eventType) | |
125 | throws FileNotFoundException { | |
12c155f5 FC |
126 | try { |
127 | currentJniTrace = JniTraceFactory.getJniTrace(path, traceLibPath, SHOW_LTT_DEBUG_DEFAULT); | |
cbdacf03 | 128 | } catch (final Exception e) { |
12c155f5 FC |
129 | throw new FileNotFoundException(e.getMessage()); |
130 | } | |
131 | ||
132 | // Export all the event types from the JNI side | |
133 | traceTypes = new HashMap<Integer, LttngEventType>(); | |
134 | traceTypeNames = new Vector<Integer>(); | |
135 | initialiseEventTypes(currentJniTrace); | |
136 | ||
00641a97 | 137 | // Build the re-used event structure |
12c155f5 | 138 | eventTimestamp = new LttngTimestamp(); |
4641c2f7 | 139 | eventSource = ""; //$NON-NLS-1$ |
12c155f5 FC |
140 | this.eventType = new LttngEventType(); |
141 | eventContent = new LttngEventContent(currentLttngEvent); | |
4641c2f7 | 142 | eventReference = getName(); |
12c155f5 FC |
143 | |
144 | // Create the skeleton event | |
145 | currentLttngEvent = new LttngEvent(this, eventTimestamp, eventSource, this.eventType, eventContent, | |
146 | eventReference, null); | |
147 | ||
148 | // Create a new current location | |
149 | previousLocation = new LttngLocation(); | |
150 | ||
151 | // Set the currentEvent to the eventContent | |
152 | eventContent.setEvent(currentLttngEvent); | |
153 | ||
1b70b6dc PT |
154 | // // Bypass indexing if asked |
155 | // if ( bypassIndexing == false ) { | |
156 | // indexTrace(true); | |
157 | // } | |
158 | // else { | |
159 | // Even if we don't have any index, set ONE checkpoint | |
160 | // fCheckpoints.add(new TmfCheckpoint(new LttngTimestamp(0L) , new | |
161 | // LttngLocation() ) ); | |
162 | ||
163 | initializeStreamingMonitor(); | |
164 | } | |
165 | ||
166 | private void initializeStreamingMonitor() { | |
cbdacf03 FC |
167 | final JniTrace jniTrace = getCurrentJniTrace(); |
168 | if (jniTrace == null | |
169 | || (!jniTrace.isLiveTraceSupported() || !LiveTraceManager.isLiveTrace(jniTrace.getTracepath()))) { | |
1b70b6dc | 170 | // Set the time range of the trace |
cbdacf03 FC |
171 | final TmfContext context = seekLocation(null); |
172 | final LttngEvent event = getNextEvent(context); | |
173 | final LttngTimestamp startTime = new LttngTimestamp(event.getTimestamp()); | |
174 | final LttngTimestamp endTime = new LttngTimestamp(currentJniTrace.getEndTime().getTime()); | |
1b70b6dc | 175 | setTimeRange(new TmfTimeRange(startTime, endTime)); |
cbdacf03 | 176 | final TmfTraceUpdatedSignal signal = new TmfTraceUpdatedSignal(this, this, getTimeRange()); |
1b70b6dc PT |
177 | broadcast(signal); |
178 | return; | |
179 | } | |
180 | ||
12c155f5 | 181 | // Set the time range of the trace |
cbdacf03 FC |
182 | final TmfContext context = seekLocation(null); |
183 | final LttngEvent event = getNextEvent(context); | |
a4115405 FC |
184 | setEndTime(TmfTimestamp.BIG_BANG); |
185 | final long startTime = event != null ? event.getTimestamp().getValue() : TmfTimestamp.BIG_BANG.getValue(); | |
1b70b6dc PT |
186 | fStreamingInterval = LTTNG_STREAMING_INTERVAL; |
187 | ||
188 | final Thread thread = new Thread("Streaming Monitor for trace " + getName()) { //$NON-NLS-1$ | |
cbdacf03 | 189 | |
1b70b6dc PT |
190 | LttngTimestamp safeTimestamp = null; |
191 | TmfTimeRange timeRange = null; | |
192 | ||
f4c52cea | 193 | @SuppressWarnings("unchecked") |
1b70b6dc PT |
194 | @Override |
195 | public void run() { | |
196 | while (!fExecutor.isShutdown()) { | |
cbdacf03 | 197 | final TmfExperiment<?> experiment = TmfExperiment.getCurrentExperiment(); |
1b70b6dc | 198 | if (experiment != null) { |
f4c52cea | 199 | @SuppressWarnings("rawtypes") |
cbdacf03 FC |
200 | final TmfEventRequest request = new TmfEventRequest<TmfEvent>(TmfEvent.class, |
201 | TmfTimeRange.ETERNITY, 0, ExecutionType.FOREGROUND) { | |
202 | ||
1b70b6dc PT |
203 | @Override |
204 | public void handleCompleted() { | |
205 | updateJniTrace(); | |
206 | } | |
207 | }; | |
208 | synchronized (experiment) { | |
209 | experiment.sendRequest(request); | |
210 | } | |
211 | try { | |
212 | request.waitForCompletion(); | |
cbdacf03 | 213 | } catch (final InterruptedException e) { |
1b70b6dc PT |
214 | e.printStackTrace(); |
215 | } | |
cbdacf03 | 216 | } else |
1b70b6dc | 217 | updateJniTrace(); |
1b70b6dc PT |
218 | try { |
219 | Thread.sleep(LTTNG_STREAMING_INTERVAL); | |
cbdacf03 | 220 | } catch (final InterruptedException e) { |
1b70b6dc PT |
221 | e.printStackTrace(); |
222 | } | |
223 | } | |
224 | } | |
cbdacf03 | 225 | |
1b70b6dc | 226 | private void updateJniTrace() { |
cbdacf03 | 227 | final JniTrace jniTrace = getCurrentJniTrace(); |
1b70b6dc | 228 | currentJniTrace.updateTrace(); |
cbdacf03 FC |
229 | final long endTime = jniTrace.getEndTime().getTime(); |
230 | final LttngTimestamp startTimestamp = new LttngTimestamp(startTime); | |
231 | final LttngTimestamp endTimestamp = new LttngTimestamp(endTime); | |
232 | if (safeTimestamp != null && safeTimestamp.compareTo(getTimeRange().getEndTime(), false) > 0) | |
1b70b6dc | 233 | timeRange = new TmfTimeRange(startTimestamp, safeTimestamp); |
cbdacf03 | 234 | else |
1b70b6dc | 235 | timeRange = null; |
1b70b6dc | 236 | safeTimestamp = endTimestamp; |
cbdacf03 | 237 | if (timeRange != null) |
1b70b6dc | 238 | setTimeRange(timeRange); |
1b70b6dc PT |
239 | } |
240 | }; | |
241 | thread.start(); | |
242 | } | |
c5b45b39 | 243 | |
12c155f5 FC |
244 | /** |
245 | * Default Constructor. | |
246 | * <p> | |
12c155f5 | 247 | * |
cbdacf03 FC |
248 | * @param name Name of the trace |
249 | * @param path Path to a <b>directory</b> that contain an LTTng trace. | |
250 | * | |
251 | * @exception Exception (most likely LTTngTraceException or | |
252 | * FileNotFoundException) | |
12c155f5 | 253 | */ |
25e48683 | 254 | public LTTngTrace(final IResource resource, final String path) throws Exception { |
12c155f5 | 255 | // Call with "wait for completion" true and "skip indexing" false |
25e48683 | 256 | this(resource, path, null, true, false); |
12c155f5 FC |
257 | } |
258 | ||
259 | /** | |
260 | * Constructor, with control over the indexing. | |
261 | * <p> | |
262 | * | |
cbdacf03 FC |
263 | * @param name Name of the trace |
264 | * @param path Path to a <b>directory</b> that contain an LTTng trace. | |
265 | * @param waitForCompletion Should we wait for indexign to complete before | |
266 | * moving on. | |
12c155f5 | 267 | * |
cbdacf03 FC |
268 | * @exception Exception (most likely LTTngTraceException or |
269 | * FileNotFoundException) | |
12c155f5 | 270 | */ |
25e48683 | 271 | public LTTngTrace(final IResource resource, final String path, final boolean waitForCompletion) throws Exception { |
12c155f5 | 272 | // Call with "skip indexing" false |
25e48683 | 273 | this(resource, path, null, waitForCompletion, true); |
12c155f5 FC |
274 | } |
275 | ||
276 | /** | |
cbdacf03 FC |
277 | * Default constructor, with control over the indexing and possibility to |
278 | * bypass indexation | |
12c155f5 FC |
279 | * <p> |
280 | * | |
cbdacf03 FC |
281 | * @param name Name of the trace |
282 | * @param path Path to a <b>directory</b> that contain an LTTng trace. | |
283 | * @param traceLibPath Path to a <b>directory</b> that contains LTTng trace | |
284 | * libraries. | |
285 | * @param waitForCompletion Should we wait for indexign to complete before | |
286 | * moving on. | |
287 | * @param bypassIndexing Should we bypass indexing completly? This is should | |
288 | * only be useful for unit testing. | |
12c155f5 | 289 | * |
cbdacf03 FC |
290 | * @exception Exception (most likely LTTngTraceException or |
291 | * FileNotFoundException) | |
12c155f5 FC |
292 | * |
293 | */ | |
25e48683 | 294 | public LTTngTrace(final IResource resource, final String path, final String traceLibPath, final boolean waitForCompletion, |
cbdacf03 | 295 | final boolean bypassIndexing) |
f17b2f70 | 296 | throws Exception { |
09e86496 FC |
297 | // super(resource, LttngEvent.class, path, CHECKPOINT_PAGE_SIZE, false); |
298 | super(resource, LttngEvent.class, path, CHECKPOINT_PAGE_SIZE); | |
299 | initialize(resource, path, LttngEvent.class); | |
8636b448 FC |
300 | if (!bypassIndexing) |
301 | indexTrace(false); | |
12c155f5 | 302 | this.traceLibPath = traceLibPath; |
12c155f5 FC |
303 | } |
304 | ||
305 | /* | |
306 | * Copy constructor is forbidden for LttngEvenmStream | |
307 | */ | |
cbdacf03 | 308 | public LTTngTrace(final LTTngTrace other) throws Exception { |
25e48683 | 309 | this(other.getResource(), other.getPath(), other.getTraceLibPath(), false, true); |
00641a97 FC |
310 | this.fCheckpoints = other.fCheckpoints; |
311 | setTimeRange(new TmfTimeRange(new LttngTimestamp(other.getStartTime()), new LttngTimestamp(other.getEndTime()))); | |
12c155f5 FC |
312 | } |
313 | ||
f17b2f70 FC |
314 | // @Override |
315 | // public synchronized LTTngTrace clone() { | |
316 | // LTTngTrace clone = null; | |
317 | // clone = (LTTngTrace) super.clone(); | |
318 | // try { | |
319 | // clone.currentJniTrace = JniTraceFactory.getJniTrace(getPath(), getTraceLibPath(), | |
320 | // SHOW_LTT_DEBUG_DEFAULT); | |
321 | // } catch (final JniException e) { | |
322 | // // e.printStackTrace(); | |
323 | // } | |
324 | // | |
325 | // // Export all the event types from the JNI side | |
326 | // clone.traceTypes = new HashMap<Integer, LttngEventType>(); | |
327 | // clone.traceTypeNames = new Vector<Integer>(); | |
328 | // clone.initialiseEventTypes(clone.currentJniTrace); | |
329 | // | |
330 | // // Verify that all those "default constructor" are safe to use | |
331 | // clone.eventTimestamp = new LttngTimestamp(); | |
332 | // clone.eventSource = ""; //$NON-NLS-1$ | |
333 | // clone.eventType = new LttngEventType(); | |
334 | // clone.eventContent = new LttngEventContent(clone.currentLttngEvent); | |
335 | // clone.eventReference = getName(); | |
336 | // | |
337 | // // Create the skeleton event | |
338 | // clone.currentLttngEvent = new LttngEvent(this, clone.eventTimestamp, clone.eventSource, clone.eventType, | |
339 | // clone.eventContent, clone.eventReference, null); | |
340 | // | |
341 | // // Create a new current location | |
342 | // clone.previousLocation = new LttngLocation(); | |
343 | // | |
344 | // // Set the currentEvent to the eventContent | |
345 | // clone.eventContent.setEvent(clone.currentLttngEvent); | |
346 | // | |
347 | // // Set the start time of the trace | |
348 | // setTimeRange(new TmfTimeRange(new LttngTimestamp(clone.currentJniTrace.getStartTime().getTime()), | |
349 | // new LttngTimestamp(clone.currentJniTrace.getEndTime().getTime()))); | |
350 | // | |
351 | // return clone; | |
352 | // } | |
12c155f5 FC |
353 | |
354 | public String getTraceLibPath() { | |
355 | return traceLibPath; | |
356 | } | |
357 | ||
358 | /* | |
359 | * Fill out the HashMap with "Type" (Tracefile/Marker) | |
360 | * | |
361 | * This should be called at construction once the trace is open | |
362 | */ | |
cbdacf03 | 363 | private void initialiseEventTypes(final JniTrace trace) { |
12c155f5 FC |
364 | // Work variables |
365 | LttngEventType tmpType = null; | |
366 | String[] markerFieldsLabels = null; | |
367 | ||
368 | String newTracefileKey = null; | |
369 | Integer newMarkerKey = null; | |
370 | ||
371 | JniTracefile newTracefile = null; | |
372 | JniMarker newMarker = null; | |
373 | ||
374 | // First, obtain an iterator on TRACEFILES of owned by the TRACE | |
cbdacf03 | 375 | final Iterator<String> tracefileItr = trace.getTracefilesMap().keySet().iterator(); |
12c155f5 FC |
376 | |
377 | while (tracefileItr.hasNext()) { | |
378 | newTracefileKey = tracefileItr.next(); | |
379 | newTracefile = trace.getTracefilesMap().get(newTracefileKey); | |
380 | ||
381 | // From the TRACEFILE read, obtain its MARKER | |
cbdacf03 | 382 | final Iterator<Integer> markerItr = newTracefile.getTracefileMarkersMap().keySet().iterator(); |
12c155f5 FC |
383 | while (markerItr.hasNext()) { |
384 | newMarkerKey = markerItr.next(); | |
385 | newMarker = newTracefile.getTracefileMarkersMap().get(newMarkerKey); | |
386 | ||
387 | // From the MARKER we can obtain the MARKERFIELDS keys (i.e. | |
388 | // labels) | |
389 | markerFieldsLabels = newMarker.getMarkerFieldsHashMap().keySet() | |
390 | .toArray(new String[newMarker.getMarkerFieldsHashMap().size()]); | |
391 | ||
392 | tmpType = new LttngEventType(newTracefile.getTracefileName(), newTracefile.getCpuNumber(), | |
393 | newMarker.getName(), newMarkerKey.intValue(), markerFieldsLabels); | |
394 | ||
395 | // Add the type to the map/vector | |
396 | addEventTypeToMap(tmpType); | |
397 | } | |
398 | } | |
399 | } | |
400 | ||
401 | /* | |
402 | * Add a new type to the HashMap | |
403 | * | |
cbdacf03 FC |
404 | * As the hashmap use a key format that is a bit dangerous to use, we should |
405 | * always add using this function. | |
12c155f5 | 406 | */ |
cbdacf03 FC |
407 | private void addEventTypeToMap(final LttngEventType newEventType) { |
408 | final int newTypeKey = EventTypeKey.getEventTypeHash(newEventType); | |
12c155f5 FC |
409 | |
410 | this.traceTypes.put(newTypeKey, newEventType); | |
411 | this.traceTypeNames.add(newTypeKey); | |
412 | } | |
413 | ||
12c155f5 | 414 | /** |
cbdacf03 FC |
415 | * Return the latest saved location. Note : Modifying the returned location |
416 | * may result in buggy positionning! | |
12c155f5 FC |
417 | * |
418 | * @return The LttngLocation as it was after the last operation. | |
419 | * | |
5945cec9 | 420 | * @see org.eclipse.linuxtools.internal.lttng.core.event.LttngLocation |
12c155f5 FC |
421 | */ |
422 | @Override | |
423 | public synchronized ITmfLocation<?> getCurrentLocation() { | |
424 | return previousLocation; | |
425 | } | |
426 | ||
427 | /** | |
428 | * Position the trace to the event at the given location. | |
429 | * <p> | |
cbdacf03 FC |
430 | * NOTE : Seeking by location is very fast compare to seeking by position |
431 | * but is still slower than "ReadNext", avoid using it for small interval. | |
12c155f5 | 432 | * |
cbdacf03 FC |
433 | * @param location Location of the event in the trace. If no event available |
434 | * at this exact location, we will position ourself to the next | |
435 | * one. | |
12c155f5 FC |
436 | * |
437 | * @return The TmfContext that point to this event | |
438 | * | |
5945cec9 | 439 | * @see org.eclipse.linuxtools.internal.lttng.core.event.LttngLocation |
6c13869b | 440 | * @see org.eclipse.linuxtools.tmf.core.trace.TmfContext |
12c155f5 FC |
441 | */ |
442 | @Override | |
cbdacf03 | 443 | public synchronized TmfContext seekLocation(final ITmfLocation<?> location) { |
12c155f5 FC |
444 | |
445 | // // [lmcfrch] | |
446 | // lastTime = 0; | |
447 | ||
cbdacf03 | 448 | if (PRINT_DEBUG) |
12c155f5 | 449 | System.out.println("seekLocation(location) location -> " + location); //$NON-NLS-1$ |
12c155f5 FC |
450 | |
451 | // If the location in context is null, create a new one | |
452 | LttngLocation curLocation = null; | |
453 | if (location == null) { | |
454 | curLocation = new LttngLocation(); | |
cbdacf03 | 455 | final TmfContext context = seekEvent(curLocation.getOperationTime()); |
12c155f5 FC |
456 | context.setRank(ITmfContext.INITIAL_RANK); |
457 | return context; | |
cbdacf03 | 458 | } else |
12c155f5 | 459 | curLocation = (LttngLocation) location; |
12c155f5 FC |
460 | |
461 | // *** NOTE : | |
462 | // Update to location should (and will) be done in SeekEvent. | |
463 | ||
464 | // The only seek valid in LTTng is with the time, we call | |
465 | // seekEvent(timestamp) | |
cbdacf03 | 466 | final TmfContext context = seekEvent(curLocation.getOperationTime()); |
12c155f5 | 467 | |
655bf113 PT |
468 | // If the location is marked with the read next flag |
469 | // then it is pointing to the next event following the operation time | |
cbdacf03 | 470 | if (curLocation.isLastOperationReadNext()) |
655bf113 | 471 | getNextEvent(context); |
655bf113 | 472 | |
12c155f5 FC |
473 | return context; |
474 | } | |
475 | ||
476 | /** | |
477 | * Position the trace to the event at the given time. | |
478 | * <p> | |
cbdacf03 FC |
479 | * NOTE : Seeking by time is very fast compare to seeking by position but is |
480 | * still slower than "ReadNext", avoid using it for small interval. | |
12c155f5 | 481 | * |
cbdacf03 FC |
482 | * @param timestamp Time of the event in the trace. If no event available at |
483 | * this exact time, we will position ourself to the next one. | |
12c155f5 FC |
484 | * |
485 | * @return The TmfContext that point to this event | |
486 | * | |
5945cec9 | 487 | * @see org.eclipse.linuxtools.internal.lttng.core.event.LttngLocation |
6c13869b | 488 | * @see org.eclipse.linuxtools.tmf.core.trace.TmfContext |
12c155f5 FC |
489 | */ |
490 | @Override | |
cbdacf03 | 491 | public synchronized TmfContext seekEvent(final ITmfTimestamp timestamp) { |
12c155f5 | 492 | |
cbdacf03 | 493 | if (PRINT_DEBUG) |
12c155f5 | 494 | System.out.println("seekEvent(timestamp) timestamp -> " + timestamp); //$NON-NLS-1$ |
12c155f5 FC |
495 | |
496 | // Call JNI to seek | |
497 | currentJniTrace.seekToTime(new JniTime(timestamp.getValue())); | |
498 | ||
499 | // Save the time at which we seeked | |
500 | previousLocation.setOperationTime(timestamp.getValue()); | |
501 | // Set the operation marker as seek, to be able to detect we did "seek" | |
502 | // this event | |
503 | previousLocation.setLastOperationSeek(); | |
504 | ||
cbdacf03 | 505 | final LttngLocation curLocation = new LttngLocation(previousLocation); |
12c155f5 FC |
506 | |
507 | return new TmfContext(curLocation); | |
508 | } | |
509 | ||
510 | /** | |
511 | * Position the trace to the event at the given position (rank). | |
512 | * <p> | |
cbdacf03 FC |
513 | * NOTE : Seeking by position is very slow in LTTng, consider seeking by |
514 | * timestamp. | |
12c155f5 | 515 | * |
cbdacf03 | 516 | * @param rank Position (or rank) of the event in the trace, starting at 0. |
12c155f5 FC |
517 | * |
518 | * @return The TmfContext that point to this event | |
519 | * | |
5945cec9 | 520 | * @see org.eclipse.linuxtools.internal.lttng.core.event.LttngLocation |
6c13869b | 521 | * @see org.eclipse.linuxtools.tmf.core.trace.TmfContext |
12c155f5 FC |
522 | */ |
523 | @Override | |
cbdacf03 | 524 | public synchronized TmfContext seekEvent(final long rank) { |
12c155f5 | 525 | |
cbdacf03 FC |
526 | if (PRINT_DEBUG) |
527 | System.out.println("seekEvent(rank) rank -> " + rank); //$NON-NLS-1$ | |
12c155f5 | 528 | |
4df4581d | 529 | ITmfTimestamp timestamp = null; |
cbdacf03 | 530 | long index = rank / getIndexPageSize(); |
12c155f5 FC |
531 | |
532 | // Get the timestamp of the closest check point to the given position | |
533 | if (fCheckpoints.size() > 0) { | |
cbdacf03 | 534 | if (index >= fCheckpoints.size()) |
12c155f5 | 535 | index = fCheckpoints.size() - 1; |
12c155f5 | 536 | timestamp = fCheckpoints.elementAt((int) index).getTimestamp(); |
cbdacf03 | 537 | } else |
12c155f5 | 538 | timestamp = getStartTime(); |
12c155f5 FC |
539 | |
540 | // Seek to the found time | |
cbdacf03 | 541 | final TmfContext tmpContext = seekEvent(timestamp); |
12c155f5 FC |
542 | tmpContext.setRank((index + 1) * fIndexPageSize); |
543 | previousLocation = (LttngLocation) tmpContext.getLocation(); | |
544 | ||
545 | // Ajust the index of the event we found at this check point position | |
3118edf1 | 546 | Long currentPosition = index * getIndexPageSize(); |
12c155f5 FC |
547 | |
548 | Long lastTimeValueRead = 0L; | |
549 | ||
550 | // Get the event at current position. This won't move to the next one | |
551 | JniEvent tmpJniEvent = currentJniTrace.findNextEvent(); | |
552 | // Now that we are positionned at the checkpoint, | |
553 | // we need to "readNext" (Position - CheckpointPosition) times or until | |
554 | // trace "run out" | |
cbdacf03 | 555 | while ((tmpJniEvent != null) && (currentPosition < rank)) { |
12c155f5 FC |
556 | tmpJniEvent = currentJniTrace.readNextEvent(); |
557 | currentPosition++; | |
558 | } | |
559 | ||
560 | // If we found our event, save its timestamp | |
cbdacf03 | 561 | if (tmpJniEvent != null) |
12c155f5 | 562 | lastTimeValueRead = tmpJniEvent.getEventTime().getTime(); |
12c155f5 FC |
563 | |
564 | // Set the operation marker as seek, to be able to detect we did "seek" | |
565 | // this event | |
566 | previousLocation.setLastOperationSeek(); | |
567 | // Save read event time | |
568 | previousLocation.setOperationTime(lastTimeValueRead); | |
569 | ||
570 | // *** VERIFY *** | |
571 | // Is that too paranoid? | |
572 | // | |
573 | // We don't trust what upper level could do with our internal location | |
574 | // so we create a new one to return instead | |
cbdacf03 | 575 | final LttngLocation curLocation = new LttngLocation(previousLocation); |
12c155f5 | 576 | |
cbdacf03 | 577 | return new TmfContext(curLocation, rank); |
12c155f5 FC |
578 | } |
579 | ||
580 | @Override | |
cbdacf03 | 581 | public TmfContext seekLocation(final double ratio) { |
12c155f5 FC |
582 | // TODO Auto-generated method stub |
583 | return null; | |
584 | } | |
585 | ||
586 | @Override | |
cbdacf03 | 587 | public double getLocationRatio(final ITmfLocation<?> location) { |
12c155f5 FC |
588 | // TODO Auto-generated method stub |
589 | return 0; | |
590 | } | |
591 | ||
592 | /** | |
cbdacf03 FC |
593 | * Return the event in the trace according to the given context. Read it if |
594 | * necessary. | |
12c155f5 | 595 | * <p> |
cbdacf03 FC |
596 | * Similar (same?) as ParseEvent except that calling GetNext twice read the |
597 | * next one the second time. | |
12c155f5 | 598 | * |
cbdacf03 | 599 | * @param context Current TmfContext where to get the event |
12c155f5 FC |
600 | * |
601 | * @return The LttngEvent we read of null if no event are available | |
602 | * | |
5945cec9 | 603 | * @see org.eclipse.linuxtools.internal.lttng.core.event.LttngLocation |
6c13869b | 604 | * @see org.eclipse.linuxtools.tmf.core.trace.TmfContext |
12c155f5 FC |
605 | */ |
606 | ||
607 | public int nbEventsRead = 0; | |
608 | ||
609 | @Override | |
cbdacf03 | 610 | public synchronized LttngEvent getNextEvent(final ITmfContext context) { |
12c155f5 | 611 | |
cbdacf03 | 612 | if (PRINT_DEBUG) |
12c155f5 FC |
613 | System.out.println("getNextEvent(context) context.getLocation() -> " //$NON-NLS-1$ |
614 | + context.getLocation()); | |
12c155f5 FC |
615 | |
616 | LttngEvent returnedEvent = null; | |
617 | LttngLocation curLocation = null; | |
618 | ||
619 | curLocation = (LttngLocation) context.getLocation(); | |
620 | // If the location in context is null, create a new one | |
cbdacf03 | 621 | if (curLocation == null) |
12c155f5 | 622 | curLocation = getCurrentLocation(context); |
12c155f5 | 623 | |
12c155f5 FC |
624 | // *** Positioning trick : |
625 | // GetNextEvent only read the trace if : | |
626 | // 1- The last operation was NOT a ParseEvent --> A read is required | |
627 | // OR | |
628 | // 2- The time of the previous location is different from the current | |
629 | // one --> A seek + a read is required | |
630 | if ((!(curLocation.isLastOperationParse())) | |
631 | || (previousLocation.getOperationTimeValue() != curLocation.getOperationTimeValue())) { | |
632 | if (previousLocation.getOperationTimeValue() != curLocation.getOperationTimeValue()) { | |
cbdacf03 | 633 | if (PRINT_DEBUG) |
12c155f5 FC |
634 | System.out.println("\t\tSeeking in getNextEvent. [ LastTime : " //$NON-NLS-1$ |
635 | + previousLocation.getOperationTimeValue() + " CurrentTime" //$NON-NLS-1$ | |
636 | + curLocation.getOperationTimeValue() + " ]"); //$NON-NLS-1$ | |
12c155f5 FC |
637 | seekEvent(curLocation.getOperationTime()); |
638 | } | |
639 | // Read the next event from the trace. The last one will NO LONGER | |
640 | // BE VALID. | |
641 | returnedEvent = readNextEvent(curLocation); | |
642 | ||
643 | } else { | |
644 | // No event was read, just return the one currently loaded (the last | |
645 | // one we read) | |
646 | returnedEvent = currentLttngEvent; | |
647 | ||
61d428bd PT |
648 | // Set the operation marker as read to both locations, to be able to |
649 | // detect we need to read the next event | |
650 | previousLocation.setLastOperationReadNext(); | |
651 | curLocation.setLastOperationReadNext(); | |
12c155f5 FC |
652 | } |
653 | ||
654 | // If we read an event, set it's time to the locations (both previous | |
655 | // and current) | |
cbdacf03 | 656 | if (returnedEvent != null) |
12c155f5 | 657 | setPreviousAndCurrentTimes(context, returnedEvent, curLocation); |
12c155f5 FC |
658 | |
659 | return returnedEvent; | |
660 | } | |
661 | ||
662 | // this method was extracted for profiling purposes | |
cbdacf03 FC |
663 | private synchronized void setPreviousAndCurrentTimes(final ITmfContext context, final LttngEvent returnedEvent, |
664 | final LttngLocation curLocation) { | |
12c155f5 | 665 | |
cbdacf03 | 666 | final ITmfTimestamp eventTimestamp = returnedEvent.getTimestamp(); |
12c155f5 FC |
667 | // long eventTime = eventTimestamp.getValue(); |
668 | previousLocation.setOperationTime(eventTimestamp.getValue()); | |
669 | curLocation.setOperationTime(eventTimestamp.getValue()); | |
670 | updateIndex(context, context.getRank(), eventTimestamp); | |
cbdacf03 | 671 | context.increaseRank(); |
12c155f5 FC |
672 | } |
673 | ||
f17b2f70 FC |
674 | // protected void updateIndex(TmfContext context, long rank, ITmfTimestamp timestamp) { |
675 | // | |
676 | // if (getStartTime().compareTo(timestamp, false) > 0) | |
677 | // setStartTime(timestamp); | |
678 | // if (getEndTime().compareTo(timestamp, false) < 0) | |
679 | // setEndTime(timestamp); | |
680 | // if (rank != ITmfContext.UNKNOWN_RANK) { | |
681 | // if (fNbEvents <= rank) | |
682 | // fNbEvents = rank + 1; | |
683 | // // Build the index as we go along | |
684 | // if ((rank % fIndexPageSize) == 0) { | |
685 | // // Determine the table position | |
686 | // long position = rank / fIndexPageSize; | |
687 | // // Add new entry at proper location (if empty) | |
688 | // if (fCheckpoints.size() == position) { | |
689 | // addCheckPoint(context, timestamp); | |
690 | // } | |
691 | // } | |
692 | // } | |
693 | // } | |
12c155f5 FC |
694 | |
695 | // this method was extracted for profiling purposes | |
cbdacf03 | 696 | private synchronized LttngEvent readNextEvent(final LttngLocation curLocation) { |
12c155f5 FC |
697 | LttngEvent returnedEvent; |
698 | // Read the next event from the trace. The last one will NO LONGER BE | |
699 | // VALID. | |
700 | returnedEvent = readEvent(curLocation); | |
701 | nbEventsRead++; | |
702 | ||
61d428bd PT |
703 | // Set the operation marker as read to both locations, to be able to |
704 | // detect we need to read the next event | |
12c155f5 FC |
705 | previousLocation.setLastOperationReadNext(); |
706 | curLocation.setLastOperationReadNext(); | |
707 | return returnedEvent; | |
708 | } | |
709 | ||
710 | // this method was extracted for profiling purposes | |
cbdacf03 | 711 | private LttngLocation getCurrentLocation(final ITmfContext context) { |
12c155f5 FC |
712 | LttngLocation curLocation; |
713 | curLocation = new LttngLocation(); | |
714 | context.setLocation(curLocation); | |
715 | return curLocation; | |
716 | } | |
717 | ||
718 | /** | |
cbdacf03 FC |
719 | * Return the event in the trace according to the given context. Read it if |
720 | * necessary. | |
12c155f5 | 721 | * <p> |
cbdacf03 FC |
722 | * Similar (same?) as GetNextEvent except that calling ParseEvent twice will |
723 | * return the same event | |
12c155f5 | 724 | * |
cbdacf03 | 725 | * @param context Current TmfContext where to get the event |
12c155f5 FC |
726 | * |
727 | * @return The LttngEvent we read of null if no event are available | |
728 | * | |
5945cec9 | 729 | * @see org.eclipse.linuxtools.internal.lttng.core.event.LttngLocation |
6c13869b | 730 | * @see org.eclipse.linuxtools.tmf.core.trace.TmfContext |
12c155f5 FC |
731 | */ |
732 | @Override | |
cbdacf03 | 733 | public synchronized LttngEvent parseEvent(final ITmfContext context) { |
12c155f5 | 734 | |
cbdacf03 | 735 | if (PRINT_DEBUG) |
12c155f5 FC |
736 | System.out.println("parseEvent(context) context.getLocation() -> " //$NON-NLS-1$ |
737 | + context.getLocation()); | |
12c155f5 FC |
738 | |
739 | LttngEvent returnedEvent = null; | |
740 | LttngLocation curLocation = null; | |
741 | ||
742 | // If the location in context is null, create a new one | |
743 | if (context.getLocation() == null) { | |
744 | curLocation = new LttngLocation(); | |
745 | context.setLocation(curLocation); | |
cbdacf03 | 746 | } else |
12c155f5 | 747 | curLocation = (LttngLocation) context.getLocation(); |
12c155f5 FC |
748 | |
749 | // *** HACK *** | |
750 | // TMF assumes it is possible to read (GetNextEvent) to the next Event | |
751 | // once ParseEvent() is called | |
752 | // In LTTNG, there is not difference between "Parsing" and "Reading" an | |
753 | // event. | |
754 | // So, before "Parsing" an event, we have to make sure we didn't "Read" | |
755 | // it alreafy. | |
756 | // Also, "Reading" invalidate the previous Event in LTTNG and seek back | |
757 | // is very costly, | |
758 | // so calling twice "Parse" will return the same event, giving a way to | |
759 | // get the "Currently loaded" event | |
760 | ||
761 | // *** Positionning trick : | |
762 | // ParseEvent only read the trace if : | |
61d428bd | 763 | // 1- The last operation was NOT a ParseEvent --> A read is required |
12c155f5 FC |
764 | // OR |
765 | // 2- The time of the previous location is different from the current | |
766 | // one --> A seek + a read is required | |
61d428bd | 767 | if (!curLocation.isLastOperationParse() |
12c155f5 FC |
768 | || (previousLocation.getOperationTimeValue() != curLocation.getOperationTimeValue())) { |
769 | // Previous time != Current time : We need to reposition to the | |
770 | // current time | |
771 | if (previousLocation.getOperationTimeValue() != curLocation.getOperationTimeValue()) { | |
cbdacf03 | 772 | if (PRINT_DEBUG) |
12c155f5 FC |
773 | System.out.println("\t\tSeeking in getNextEvent. [ LastTime : " //$NON-NLS-1$ |
774 | + previousLocation.getOperationTimeValue() + " CurrentTime" //$NON-NLS-1$ | |
775 | + curLocation.getOperationTimeValue() + " ]"); //$NON-NLS-1$ | |
12c155f5 FC |
776 | seekEvent(curLocation.getOperationTime()); |
777 | } | |
778 | ||
779 | // Read the next event from the trace. The last one will NO LONGER | |
780 | // BE VALID. | |
781 | returnedEvent = readEvent(curLocation); | |
cbdacf03 | 782 | } else |
12c155f5 FC |
783 | // No event was read, just return the one currently loaded (the last |
784 | // one we read) | |
785 | returnedEvent = currentLttngEvent; | |
12c155f5 FC |
786 | |
787 | // If we read an event, set it's time to the locations (both previous | |
788 | // and current) | |
789 | if (returnedEvent != null) { | |
790 | previousLocation.setOperationTime((LttngTimestamp) returnedEvent.getTimestamp()); | |
791 | curLocation.setOperationTime((LttngTimestamp) returnedEvent.getTimestamp()); | |
792 | } | |
793 | ||
794 | // Set the operation marker as parse to both location, to be able to | |
795 | // detect we already "read" this event | |
796 | previousLocation.setLastOperationParse(); | |
797 | curLocation.setLastOperationParse(); | |
798 | ||
799 | return returnedEvent; | |
800 | } | |
801 | ||
802 | /* | |
803 | * Read the next event from the JNI and convert it as Lttng Event<p> | |
804 | * | |
cbdacf03 FC |
805 | * @param location Current LttngLocation that to be updated with the event |
806 | * timestamp | |
12c155f5 FC |
807 | * |
808 | * @return The LttngEvent we read of null if no event are available | |
809 | * | |
810 | * @see org.eclipse.linuxtools.lttng.event.LttngLocation | |
811 | * | |
812 | * @see org.eclipse.linuxtools.org.eclipse.linuxtools.lttng.jni.JniTrace | |
813 | */ | |
cbdacf03 | 814 | private synchronized LttngEvent readEvent(final LttngLocation location) { |
12c155f5 FC |
815 | LttngEvent returnedEvent = null; |
816 | JniEvent tmpEvent = null; | |
817 | ||
818 | // Read the next event from JNI. THIS WILL INVALIDATE THE CURRENT LTTNG | |
819 | // EVENT. | |
820 | tmpEvent = currentJniTrace.readNextEvent(); | |
821 | ||
822 | if (tmpEvent != null) { | |
823 | // *** NOTE | |
824 | // Convert will update the currentLttngEvent | |
825 | returnedEvent = convertJniEventToTmf(tmpEvent); | |
826 | ||
827 | location.setOperationTime((LttngTimestamp) returnedEvent.getTimestamp()); | |
cbdacf03 | 828 | } else |
12c155f5 | 829 | location.setOperationTime(getEndTime().getValue() + 1); |
12c155f5 FC |
830 | |
831 | return returnedEvent; | |
832 | } | |
833 | ||
834 | /** | |
835 | * Method to convert a JniEvent into a LttngEvent. | |
836 | * <p> | |
837 | * | |
cbdacf03 FC |
838 | * Note : This method will call LttngEvent convertEventJniToTmf(JniEvent, |
839 | * boolean) with a default value for isParsingNeeded | |
12c155f5 | 840 | * |
cbdacf03 | 841 | * @param newEvent The JniEvent to convert into LttngEvent |
12c155f5 FC |
842 | * |
843 | * @return The converted LttngEvent | |
844 | * | |
845 | * @see org.eclipse.linuxtools.org.eclipse.linuxtools.lttng.jni.JniEvent | |
5945cec9 | 846 | * @see org.eclipse.linuxtools.internal.lttng.core.event.LttngEvent |
12c155f5 | 847 | */ |
cbdacf03 | 848 | public synchronized LttngEvent convertJniEventToTmf(final JniEvent newEvent) { |
12c155f5 FC |
849 | currentLttngEvent = convertJniEventToTmf(newEvent, IS_PARSING_NEEDED_DEFAULT); |
850 | ||
851 | return currentLttngEvent; | |
852 | } | |
853 | ||
854 | /** | |
855 | * Method to convert a JniEvent into a LttngEvent | |
856 | * | |
cbdacf03 FC |
857 | * @param jniEvent The JniEvent to convert into LttngEvent |
858 | * @param isParsingNeeded A boolean value telling if the event should be | |
859 | * parsed or not. | |
12c155f5 FC |
860 | * |
861 | * @return The converted LttngEvent | |
862 | * | |
863 | * @see org.eclipse.linuxtools.org.eclipse.linuxtools.lttng.jni.JniEvent | |
5945cec9 | 864 | * @see org.eclipse.linuxtools.internal.lttng.core.event.LttngEvent |
12c155f5 | 865 | */ |
cbdacf03 | 866 | public synchronized LttngEvent convertJniEventToTmf(final JniEvent jniEvent, final boolean isParsingNeeded) { |
12c155f5 | 867 | |
212550ba | 868 | if (UNIQUE_EVENT) { |
12c155f5 FC |
869 | |
870 | // *** | |
871 | // UNHACKED : We can no longer do that because TCF need to maintain | |
872 | // several events at once. | |
873 | // This is very slow to do so in LTTng, this has to be temporary. | |
874 | // *** HACK *** | |
875 | // To save time here, we only set value instead of allocating new | |
876 | // object | |
877 | // This give an HUGE performance improvement | |
878 | // all allocation done in the LttngTrace constructor | |
879 | // *** | |
880 | eventTimestamp.setValue(jniEvent.getEventTime().getTime()); | |
99005796 | 881 | eventSource = jniEvent.requestEventSource(); |
12c155f5 FC |
882 | |
883 | eventType = traceTypes.get(EventTypeKey.getEventTypeHash(jniEvent)); | |
884 | ||
cbdacf03 FC |
885 | final String fullTracePath = getName(); |
886 | final String reference = fullTracePath.substring(fullTracePath.lastIndexOf('/') + 1); | |
4641c2f7 | 887 | currentLttngEvent.setReference(reference); |
12c155f5 FC |
888 | |
889 | eventContent.emptyContent(); | |
890 | ||
891 | currentLttngEvent.setType(eventType); | |
892 | // Save the jni reference | |
893 | currentLttngEvent.updateJniEventReference(jniEvent); | |
894 | ||
895 | // Parse now if was asked | |
896 | // Warning : THIS IS SLOW | |
cbdacf03 | 897 | if (isParsingNeeded) |
12c155f5 | 898 | eventContent.getFields(); |
12c155f5 FC |
899 | |
900 | return currentLttngEvent; | |
cbdacf03 | 901 | } else |
12c155f5 | 902 | return convertJniEventToTmfMultipleEventEvilFix(jniEvent, isParsingNeeded); |
12c155f5 FC |
903 | |
904 | } | |
905 | ||
906 | /** | |
cbdacf03 FC |
907 | * This method is a temporary fix to support multiple events at once in TMF |
908 | * This is expected to be slow and should be fixed in another way. See | |
909 | * comment in convertJniEventToTmf(); | |
12c155f5 | 910 | * |
cbdacf03 | 911 | * @param jniEvent The current JNI Event |
12c155f5 FC |
912 | * @return Current Lttng Event fully parsed |
913 | */ | |
cbdacf03 FC |
914 | private synchronized LttngEvent convertJniEventToTmfMultipleEventEvilFix(final JniEvent jniEvent, |
915 | final boolean isParsingNeeded) { | |
12c155f5 FC |
916 | // *** HACK *** |
917 | // Below : the "fix" with all the new and the full-parse | |
918 | // Allocating new memory is slow. | |
919 | // Parsing every events is very slow. | |
920 | eventTimestamp = new LttngTimestamp(jniEvent.getEventTime().getTime()); | |
99005796 | 921 | eventSource = jniEvent.requestEventSource(); |
4641c2f7 | 922 | eventReference = getName(); |
12c155f5 FC |
923 | eventType = new LttngEventType(traceTypes.get(EventTypeKey.getEventTypeHash(jniEvent))); |
924 | eventContent = new LttngEventContent(currentLttngEvent); | |
925 | currentLttngEvent = new LttngEvent(this, eventTimestamp, eventSource, eventType, eventContent, eventReference, | |
926 | null); | |
927 | ||
928 | // The jni reference is no longer reliable but we will keep it anyhow | |
929 | currentLttngEvent.updateJniEventReference(jniEvent); | |
930 | // Ensure that the content is correctly set | |
931 | eventContent.setEvent(currentLttngEvent); | |
932 | ||
933 | // Parse the event if it was needed | |
934 | // *** WARNING *** | |
935 | // ONLY for testing, NOT parsing events with non-unique events WILL | |
936 | // result in segfault in the JVM | |
cbdacf03 | 937 | if (isParsingNeeded) |
12c155f5 | 938 | eventContent.getFields(); |
12c155f5 FC |
939 | |
940 | return currentLttngEvent; | |
941 | } | |
942 | ||
943 | /** | |
944 | * Reference to the current LttngTrace we are reading from. | |
945 | * <p> | |
946 | * | |
cbdacf03 FC |
947 | * Note : This bypass the framework and should not be use, except for |
948 | * testing! | |
12c155f5 FC |
949 | * |
950 | * @return Reference to the current LttngTrace | |
951 | * | |
952 | * @see org.eclipse.linuxtools.org.eclipse.linuxtools.lttng.jni.JniTrace | |
953 | */ | |
954 | public JniTrace getCurrentJniTrace() { | |
955 | return currentJniTrace; | |
956 | } | |
957 | ||
958 | /** | |
959 | * Return a reference to the current LttngEvent we have in memory. | |
960 | * | |
961 | * @return The current (last read) LttngEvent | |
962 | * | |
5945cec9 | 963 | * @see org.eclipse.linuxtools.internal.lttng.core.event.LttngEvent |
12c155f5 FC |
964 | */ |
965 | public synchronized LttngEvent getCurrentEvent() { | |
966 | return currentLttngEvent; | |
967 | } | |
968 | ||
969 | /** | |
970 | * Get the major version number for the current trace | |
971 | * | |
972 | * @return Version major or -1 if unknown | |
973 | * | |
974 | * @see org.eclipse.linuxtools.org.eclipse.linuxtools.lttng.jni.JniTrace | |
975 | * | |
976 | */ | |
977 | public short getVersionMajor() { | |
cbdacf03 | 978 | if (currentJniTrace != null) |
12c155f5 | 979 | return currentJniTrace.getLttMajorVersion(); |
cbdacf03 | 980 | else |
12c155f5 | 981 | return -1; |
12c155f5 FC |
982 | } |
983 | ||
984 | /** | |
985 | * Get the minor version number for the current trace | |
986 | * | |
987 | * @return Version minor or -1 if unknown | |
988 | * | |
989 | * @see org.eclipse.linuxtools.org.eclipse.linuxtools.lttng.jni.JniTrace | |
990 | * | |
991 | */ | |
992 | public short getVersionMinor() { | |
cbdacf03 | 993 | if (currentJniTrace != null) |
12c155f5 | 994 | return currentJniTrace.getLttMinorVersion(); |
cbdacf03 | 995 | else |
12c155f5 | 996 | return -1; |
12c155f5 FC |
997 | } |
998 | ||
999 | /** | |
1000 | * Get the number of CPU for this trace | |
1001 | * | |
1002 | * @return Number of CPU or -1 if unknown | |
1003 | * | |
1004 | * @see org.eclipse.linuxtools.org.eclipse.linuxtools.lttng.jni.JniTrace | |
1005 | * | |
1006 | */ | |
1007 | public int getCpuNumber() { | |
cbdacf03 | 1008 | if (currentJniTrace != null) |
12c155f5 | 1009 | return currentJniTrace.getCpuNumber(); |
cbdacf03 | 1010 | else |
12c155f5 | 1011 | return -1; |
12c155f5 FC |
1012 | } |
1013 | ||
1014 | /** | |
1015 | * Print the content of the checkpoint vector. | |
1016 | * <p> | |
1017 | * | |
1018 | * This is intended for debug purpose only. | |
1019 | */ | |
1020 | public void printCheckpointsVector() { | |
1021 | System.out.println("StartTime : " //$NON-NLS-1$ | |
1022 | + getTimeRange().getStartTime().getValue()); | |
1023 | System.out.println("EndTime : " //$NON-NLS-1$ | |
1024 | + getTimeRange().getEndTime().getValue()); | |
1025 | ||
1026 | for (int pos = 0; pos < fCheckpoints.size(); pos++) { | |
1027 | System.out.print(pos + ": " + "\t"); //$NON-NLS-1$ //$NON-NLS-2$ | |
1028 | System.out.print(fCheckpoints.get(pos).getTimestamp() + "\t"); //$NON-NLS-1$ | |
1029 | System.out.println(fCheckpoints.get(pos).getLocation()); | |
1030 | } | |
1031 | } | |
1032 | ||
1033 | @Override | |
1034 | public synchronized void dispose() { | |
1035 | if (currentJniTrace != null) | |
1036 | currentJniTrace.closeTrace(); | |
1037 | super.dispose(); | |
1038 | } | |
1039 | ||
1040 | /** | |
1041 | * Return a String identifying this trace. | |
1042 | * | |
1043 | * @return String that identify this trace | |
1044 | */ | |
1045 | @Override | |
3b38ea61 | 1046 | @SuppressWarnings("nls") |
12c155f5 FC |
1047 | public String toString() { |
1048 | String returnedData = ""; | |
64fe8e8a | 1049 | |
12c155f5 FC |
1050 | returnedData += "Path :" + getPath() + " "; |
1051 | returnedData += "Trace:" + currentJniTrace + " "; | |
1052 | returnedData += "Event:" + currentLttngEvent; | |
64fe8e8a | 1053 | |
12c155f5 FC |
1054 | return returnedData; |
1055 | } | |
cb866e08 | 1056 | |
28b94d61 FC |
1057 | } |
1058 | ||
1059 | /* | |
1060 | * EventTypeKey inner class | |
1061 | * | |
cbdacf03 FC |
1062 | * This class is used to make the process of generating the HashMap key more |
1063 | * transparent and so less error prone to use | |
28b94d61 | 1064 | */ |
64fe8e8a | 1065 | final class EventTypeKey { |
cbdacf03 | 1066 | |
12c155f5 FC |
1067 | // *** WARNING *** |
1068 | // These two getEventTypeKey() functions should ALWAYS construct the key the | |
1069 | // same ways! | |
1070 | // Otherwise, every type search will fail! | |
64fe8e8a | 1071 | |
12c155f5 FC |
1072 | // added final to encourage inlining. |
1073 | ||
1074 | // generating a hash code by hand to avoid a string creation | |
cbdacf03 | 1075 | final static public int getEventTypeHash(final LttngEventType newEventType) { |
12c155f5 FC |
1076 | return generateHash(newEventType.getTracefileName(), newEventType.getCpuId(), newEventType.getMarkerName()); |
1077 | } | |
1078 | ||
cbdacf03 | 1079 | final private static int generateHash(final String traceFileName, final long cpuNumber, final String markerName) { |
12c155f5 FC |
1080 | // 0x1337 is a prime number. The number of CPUs is always under 8192 on |
1081 | // the current kernel, so this will work with the current linux kernel. | |
cbdacf03 | 1082 | final int cpuHash = (int) (cpuNumber * (0x1337)); |
12c155f5 FC |
1083 | return traceFileName.hashCode() ^ (cpuHash) ^ markerName.hashCode(); |
1084 | } | |
1085 | ||
1086 | // generating a hash code by hand to avoid a string creation | |
cbdacf03 | 1087 | final static public int getEventTypeHash(final JniEvent newEvent) { |
12c155f5 FC |
1088 | return generateHash(newEvent.getParentTracefile().getTracefileName(), newEvent.getParentTracefile() |
1089 | .getCpuNumber(), newEvent.requestEventMarker().getName()); | |
1090 | } | |
64fe8e8a | 1091 | |
a3767fd9 | 1092 | } |