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866e5b51 | 1 | /******************************************************************************* |
93a45b54 | 2 | * Copyright (c) 2011, 2014 Ericsson, Ecole Polytechnique de Montreal and others |
866e5b51 FC |
3 | * |
4 | * All rights reserved. This program and the accompanying materials are made | |
5 | * 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 | * | |
4311ac8b MAL |
9 | * Contributors: |
10 | * Matthew Khouzam - Initial API and implementation | |
11 | * Alexandre Montplaisir - Initial API and implementation | |
866e5b51 FC |
12 | *******************************************************************************/ |
13 | ||
f357bcd4 | 14 | package org.eclipse.tracecompass.ctf.core.trace; |
866e5b51 | 15 | |
90cefe9f MK |
16 | import static org.eclipse.tracecompass.common.core.NonNullUtils.checkNotNull; |
17 | ||
b3151232 | 18 | import java.io.IOException; |
0594c61c | 19 | import java.util.ArrayList; |
6a0ec7bc | 20 | import java.util.Collections; |
fe75d403 | 21 | import java.util.HashSet; |
0594c61c | 22 | import java.util.List; |
866e5b51 FC |
23 | import java.util.PriorityQueue; |
24 | import java.util.Set; | |
866e5b51 | 25 | |
680f9173 | 26 | import org.eclipse.tracecompass.ctf.core.CTFException; |
f357bcd4 AM |
27 | import org.eclipse.tracecompass.ctf.core.event.EventDefinition; |
28 | import org.eclipse.tracecompass.ctf.core.event.IEventDeclaration; | |
29 | import org.eclipse.tracecompass.internal.ctf.core.Activator; | |
30 | import org.eclipse.tracecompass.internal.ctf.core.trace.StreamInputReaderTimestampComparator; | |
ce2388e0 | 31 | |
866e5b51 | 32 | /** |
d37aaa7f | 33 | * A CTF trace reader. Reads the events of a trace. |
1d7277f3 | 34 | * |
d37aaa7f FC |
35 | * @version 1.0 |
36 | * @author Matthew Khouzam | |
37 | * @author Alexandre Montplaisir | |
866e5b51 | 38 | */ |
dd9752d5 | 39 | public class CTFTraceReader implements AutoCloseable { |
866e5b51 | 40 | |
f068c622 MK |
41 | private static final int LINE_LENGTH = 60; |
42 | ||
fe75d403 MK |
43 | private static final int MIN_PRIO_SIZE = 16; |
44 | ||
866e5b51 FC |
45 | // ------------------------------------------------------------------------ |
46 | // Attributes | |
47 | // ------------------------------------------------------------------------ | |
48 | ||
49 | /** | |
50 | * The trace to read from. | |
51 | */ | |
93a45b54 | 52 | private final CTFTrace fTrace; |
866e5b51 FC |
53 | |
54 | /** | |
55 | * Vector of all the trace file readers. | |
56 | */ | |
90cefe9f | 57 | private final List<CTFStreamInputReader> fStreamInputReaders = Collections.synchronizedList(new ArrayList<CTFStreamInputReader>()); |
866e5b51 FC |
58 | |
59 | /** | |
60 | * Priority queue to order the trace file readers by timestamp. | |
61 | */ | |
d84419e1 | 62 | private PriorityQueue<CTFStreamInputReader> fPrio; |
866e5b51 FC |
63 | |
64 | /** | |
65 | * Array to count the number of event per trace file. | |
66 | */ | |
93a45b54 | 67 | private long[] fEventCountPerTraceFile; |
866e5b51 FC |
68 | |
69 | /** | |
70 | * Timestamp of the first event in the trace | |
71 | */ | |
93a45b54 | 72 | private long fStartTime; |
866e5b51 FC |
73 | |
74 | /** | |
75 | * Timestamp of the last event read so far | |
76 | */ | |
93a45b54 | 77 | private long fEndTime; |
866e5b51 | 78 | |
545d9101 RB |
79 | /** |
80 | * Boolean to indicate if the CTFTraceReader has been closed | |
81 | */ | |
82 | private boolean fClosed = false; | |
83 | ||
866e5b51 FC |
84 | // ------------------------------------------------------------------------ |
85 | // Constructors | |
86 | // ------------------------------------------------------------------------ | |
87 | ||
88 | /** | |
89 | * Constructs a TraceReader to read a trace. | |
90 | * | |
91 | * @param trace | |
92 | * The trace to read from. | |
680f9173 | 93 | * @throws CTFException |
db8e8f7d | 94 | * if an error occurs |
866e5b51 | 95 | */ |
680f9173 | 96 | public CTFTraceReader(CTFTrace trace) throws CTFException { |
93a45b54 MK |
97 | fTrace = trace; |
98 | fStreamInputReaders.clear(); | |
866e5b51 FC |
99 | |
100 | /** | |
101 | * Create the trace file readers. | |
102 | */ | |
103 | createStreamInputReaders(); | |
104 | ||
105 | /** | |
106 | * Populate the timestamp-based priority queue. | |
107 | */ | |
108 | populateStreamInputReaderHeap(); | |
109 | ||
110 | /** | |
bfe038ff MK |
111 | * Get the start Time of this trace bear in mind that the trace could be |
112 | * empty. | |
866e5b51 | 113 | */ |
93a45b54 | 114 | fStartTime = 0; |
33656d8e | 115 | if (hasMoreEvents()) { |
42f8feff MK |
116 | fStartTime = checkNotNull(getTopStream().getCurrentEvent()).getTimestamp(); |
117 | setEndTime(fStartTime); | |
33656d8e | 118 | } |
866e5b51 FC |
119 | } |
120 | ||
121 | /** | |
122 | * Copy constructor | |
be6df2d8 AM |
123 | * |
124 | * @return The new CTFTraceReader | |
680f9173 | 125 | * @throws CTFException |
6a5251eb | 126 | * if an error occurs |
866e5b51 | 127 | */ |
680f9173 | 128 | public CTFTraceReader copyFrom() throws CTFException { |
866e5b51 FC |
129 | CTFTraceReader newReader = null; |
130 | ||
93a45b54 MK |
131 | newReader = new CTFTraceReader(fTrace); |
132 | newReader.fStartTime = fStartTime; | |
133 | newReader.setEndTime(fEndTime); | |
866e5b51 FC |
134 | return newReader; |
135 | } | |
136 | ||
5d1c6919 PT |
137 | /** |
138 | * Dispose the CTFTraceReader | |
5d1c6919 | 139 | */ |
dd9752d5 AM |
140 | @Override |
141 | public void close() { | |
6a0ec7bc AM |
142 | synchronized (fStreamInputReaders) { |
143 | for (CTFStreamInputReader reader : fStreamInputReaders) { | |
144 | if (reader != null) { | |
145 | try { | |
146 | reader.close(); | |
147 | } catch (IOException e) { | |
148 | Activator.logError(e.getMessage(), e); | |
149 | } | |
b3151232 | 150 | } |
5d1c6919 | 151 | } |
6a0ec7bc | 152 | fStreamInputReaders.clear(); |
5d1c6919 | 153 | } |
74d66aa3 | 154 | fPrio.clear(); |
545d9101 | 155 | fClosed = true; |
5d1c6919 PT |
156 | } |
157 | ||
866e5b51 FC |
158 | // ------------------------------------------------------------------------ |
159 | // Getters/Setters/Predicates | |
160 | // ------------------------------------------------------------------------ | |
161 | ||
162 | /** | |
163 | * Return the start time of this trace (== timestamp of the first event) | |
164 | * | |
0d9a6d76 | 165 | * @return the trace start time |
866e5b51 FC |
166 | */ |
167 | public long getStartTime() { | |
93a45b54 | 168 | return fStartTime; |
866e5b51 FC |
169 | } |
170 | ||
6f4e8ec0 AM |
171 | /** |
172 | * Set the trace's end time | |
173 | * | |
174 | * @param endTime | |
175 | * The end time to use | |
176 | */ | |
0594c61c | 177 | protected final void setEndTime(long endTime) { |
93a45b54 | 178 | fEndTime = endTime; |
6f4e8ec0 AM |
179 | } |
180 | ||
0594c61c AM |
181 | /** |
182 | * Get the priority queue of this trace reader. | |
183 | * | |
184 | * @return The priority queue of input readers | |
0594c61c | 185 | */ |
d84419e1 | 186 | protected PriorityQueue<CTFStreamInputReader> getPrio() { |
93a45b54 | 187 | return fPrio; |
0594c61c AM |
188 | } |
189 | ||
866e5b51 FC |
190 | // ------------------------------------------------------------------------ |
191 | // Operations | |
192 | // ------------------------------------------------------------------------ | |
193 | ||
194 | /** | |
195 | * Creates one trace file reader per trace file contained in the trace. | |
db8e8f7d | 196 | * |
680f9173 | 197 | * @throws CTFException |
db8e8f7d | 198 | * if an error occurs |
866e5b51 | 199 | */ |
680f9173 | 200 | private void createStreamInputReaders() throws CTFException { |
866e5b51 FC |
201 | /* |
202 | * For each stream. | |
203 | */ | |
d84419e1 AM |
204 | for (CTFStream stream : fTrace.getStreams()) { |
205 | Set<CTFStreamInput> streamInputs = stream.getStreamInputs(); | |
866e5b51 FC |
206 | |
207 | /* | |
208 | * For each trace file of the stream. | |
209 | */ | |
d84419e1 | 210 | for (CTFStreamInput streamInput : streamInputs) { |
866e5b51 FC |
211 | |
212 | /* | |
05ce5fef | 213 | * Create a reader and add it to the group. |
866e5b51 | 214 | */ |
90cefe9f | 215 | fStreamInputReaders.add(new CTFStreamInputReader(checkNotNull(streamInput))); |
866e5b51 FC |
216 | } |
217 | } | |
218 | ||
219 | /* | |
220 | * Create the array to count the number of event per trace file. | |
221 | */ | |
93a45b54 | 222 | fEventCountPerTraceFile = new long[fStreamInputReaders.size()]; |
866e5b51 FC |
223 | } |
224 | ||
545d9101 RB |
225 | /** |
226 | * Returns whether or not this CTFTraceReader has been closed | |
227 | * | |
228 | * @return true if it has been closed, false else | |
0336f981 | 229 | * @since 1.1 |
545d9101 RB |
230 | */ |
231 | public boolean isClosed() { | |
232 | return fClosed; | |
233 | } | |
234 | ||
fe75d403 MK |
235 | /** |
236 | * Update the priority queue to make it match the parent trace | |
237 | * | |
680f9173 | 238 | * @throws CTFException |
fe75d403 | 239 | * An error occured |
fe75d403 | 240 | */ |
680f9173 | 241 | public void update() throws CTFException { |
d84419e1 AM |
242 | Set<CTFStreamInputReader> readers = new HashSet<>(); |
243 | for (CTFStream stream : fTrace.getStreams()) { | |
244 | Set<CTFStreamInput> streamInputs = stream.getStreamInputs(); | |
245 | for (CTFStreamInput streamInput : streamInputs) { | |
fe75d403 MK |
246 | /* |
247 | * Create a reader. | |
248 | */ | |
90cefe9f | 249 | CTFStreamInputReader streamInputReader = new CTFStreamInputReader(checkNotNull(streamInput)); |
fe75d403 | 250 | |
42f8feff | 251 | |
fe75d403 MK |
252 | /* |
253 | * Add it to the group. | |
254 | */ | |
255 | if (!fStreamInputReaders.contains(streamInputReader)) { | |
256 | streamInputReader.readNextEvent(); | |
257 | fStreamInputReaders.add(streamInputReader); | |
258 | readers.add(streamInputReader); | |
259 | } | |
260 | } | |
261 | } | |
262 | long[] temp = fEventCountPerTraceFile; | |
263 | fEventCountPerTraceFile = new long[readers.size() + temp.length]; | |
d84419e1 | 264 | for (CTFStreamInputReader reader : readers) { |
fe75d403 MK |
265 | fPrio.add(reader); |
266 | } | |
267 | for (int i = 0; i < temp.length; i++) { | |
268 | fEventCountPerTraceFile[i] = temp[i]; | |
269 | } | |
270 | } | |
271 | ||
53359017 MK |
272 | /** |
273 | * Gets an iterable of the stream input readers, useful for foreaches | |
274 | * | |
275 | * @return the iterable of the stream input readers | |
53359017 MK |
276 | */ |
277 | public Iterable<IEventDeclaration> getEventDeclarations() { | |
42f8feff | 278 | Set<IEventDeclaration> retSet = new HashSet<>(); |
d84419e1 | 279 | for (CTFStreamInputReader sir : fStreamInputReaders) { |
42f8feff | 280 | retSet.addAll(sir.getEventDeclarations()); |
53359017 | 281 | } |
42f8feff MK |
282 | retSet.remove(null); |
283 | return retSet; | |
53359017 MK |
284 | } |
285 | ||
866e5b51 FC |
286 | /** |
287 | * Initializes the priority queue used to choose the trace file with the | |
288 | * lower next event timestamp. | |
db8e8f7d | 289 | * |
680f9173 | 290 | * @throws CTFException |
db8e8f7d | 291 | * if an error occurs |
866e5b51 | 292 | */ |
680f9173 | 293 | private void populateStreamInputReaderHeap() throws CTFException { |
93a45b54 | 294 | if (fStreamInputReaders.isEmpty()) { |
fe75d403 MK |
295 | fPrio = new PriorityQueue<>(MIN_PRIO_SIZE, |
296 | new StreamInputReaderTimestampComparator()); | |
b5354daa MAL |
297 | return; |
298 | } | |
299 | ||
866e5b51 FC |
300 | /* |
301 | * Create the priority queue with a size twice as bigger as the number | |
302 | * of reader in order to avoid constant resizing. | |
303 | */ | |
93a45b54 | 304 | fPrio = new PriorityQueue<>( |
fe75d403 | 305 | Math.max(fStreamInputReaders.size() * 2, MIN_PRIO_SIZE), |
866e5b51 FC |
306 | new StreamInputReaderTimestampComparator()); |
307 | ||
308 | int pos = 0; | |
309 | ||
d84419e1 | 310 | for (CTFStreamInputReader reader : fStreamInputReaders) { |
866e5b51 FC |
311 | /* |
312 | * Add each trace file reader in the priority queue, if we are able | |
313 | * to read an event from it. | |
314 | */ | |
6a5251eb MK |
315 | CTFResponse readNextEvent = reader.readNextEvent(); |
316 | if (readNextEvent == CTFResponse.OK || readNextEvent == CTFResponse.WAIT) { | |
93a45b54 | 317 | fPrio.add(reader); |
866e5b51 | 318 | |
93a45b54 | 319 | fEventCountPerTraceFile[pos] = 0; |
866e5b51 FC |
320 | reader.setName(pos); |
321 | ||
322 | pos++; | |
323 | } | |
324 | } | |
325 | } | |
326 | ||
327 | /** | |
328 | * Get the current event, which is the current event of the trace file | |
329 | * reader with the lowest timestamp. | |
330 | * | |
331 | * @return An event definition, or null of the trace reader reached the end | |
332 | * of the trace. | |
333 | */ | |
334 | public EventDefinition getCurrentEventDef() { | |
d84419e1 | 335 | CTFStreamInputReader top = getTopStream(); |
866e5b51 FC |
336 | return (top != null) ? top.getCurrentEvent() : null; |
337 | } | |
338 | ||
339 | /** | |
340 | * Go to the next event. | |
341 | * | |
342 | * @return True if an event was read. | |
680f9173 | 343 | * @throws CTFException |
db8e8f7d | 344 | * if an error occurs |
866e5b51 | 345 | */ |
680f9173 | 346 | public boolean advance() throws CTFException { |
866e5b51 FC |
347 | /* |
348 | * Remove the reader from the top of the priority queue. | |
349 | */ | |
d84419e1 | 350 | CTFStreamInputReader top = fPrio.poll(); |
866e5b51 FC |
351 | |
352 | /* | |
353 | * If the queue was empty. | |
354 | */ | |
355 | if (top == null) { | |
356 | return false; | |
357 | } | |
866e5b51 FC |
358 | /* |
359 | * Read the next event of this reader. | |
360 | */ | |
6a5251eb MK |
361 | switch (top.readNextEvent()) { |
362 | case OK: { | |
866e5b51 FC |
363 | /* |
364 | * Add it back in the queue. | |
365 | */ | |
93a45b54 | 366 | fPrio.add(top); |
90cefe9f MK |
367 | /* |
368 | * We're in OK, there's a guaranteed top#getCurrentEvent() unless another | |
369 | * thread does something bad. | |
370 | */ | |
371 | EventDefinition currentEvent = checkNotNull(top.getCurrentEvent()); | |
372 | final long topEnd = fTrace.timestampCyclesToNanos(currentEvent.getTimestamp()); | |
93a45b54 MK |
373 | setEndTime(Math.max(topEnd, getEndTime())); |
374 | fEventCountPerTraceFile[top.getName()]++; | |
90cefe9f | 375 | fEndTime = Math.max(currentEvent.getTimestamp(), fEndTime); |
6a5251eb MK |
376 | break; |
377 | } | |
378 | case WAIT: { | |
379 | fPrio.add(top); | |
380 | break; | |
381 | } | |
382 | case FINISH: | |
383 | break; | |
384 | case ERROR: | |
385 | default: | |
386 | // something bad happend | |
bfe038ff | 387 | } |
866e5b51 FC |
388 | /* |
389 | * If there is no reader in the queue, it means the trace reader reached | |
390 | * the end of the trace. | |
391 | */ | |
bfe038ff | 392 | return hasMoreEvents(); |
866e5b51 FC |
393 | } |
394 | ||
395 | /** | |
396 | * Go to the last event in the trace. | |
db8e8f7d | 397 | * |
680f9173 | 398 | * @throws CTFException |
db8e8f7d | 399 | * if an error occurs |
866e5b51 | 400 | */ |
680f9173 | 401 | public void goToLastEvent() throws CTFException { |
93a45b54 MK |
402 | seek(getEndTime()); |
403 | while (fPrio.size() > 1) { | |
404 | advance(); | |
866e5b51 FC |
405 | } |
406 | } | |
407 | ||
408 | /** | |
ecb12461 EB |
409 | * Seeks to a given timestamp. It will seek to the nearest event greater or |
410 | * equal to timestamp. If a trace is [10 20 30 40] and you are looking for | |
411 | * 19, it will give you 20. If you want 20, you will get 20, if you want 21, | |
412 | * you will get 30. The value -inf will seek to the first element and the | |
413 | * value +inf will seek to the end of the file (past the last event). | |
866e5b51 FC |
414 | * |
415 | * @param timestamp | |
416 | * the timestamp to seek to | |
6a5251eb MK |
417 | * @return true if there are events above or equal the seek timestamp, false |
418 | * if seek at the end of the trace (no valid event). | |
680f9173 | 419 | * @throws CTFException |
db8e8f7d | 420 | * if an error occurs |
866e5b51 | 421 | */ |
680f9173 | 422 | public boolean seek(long timestamp) throws CTFException { |
866e5b51 FC |
423 | /* |
424 | * Remove all the trace readers from the priority queue | |
425 | */ | |
93a45b54 | 426 | fPrio.clear(); |
d84419e1 | 427 | for (CTFStreamInputReader streamInputReader : fStreamInputReaders) { |
866e5b51 FC |
428 | /* |
429 | * Seek the trace reader. | |
430 | */ | |
bfe038ff | 431 | streamInputReader.seek(timestamp); |
ce2388e0 FC |
432 | |
433 | /* | |
434 | * Add it to the priority queue if there is a current event. | |
435 | */ | |
ce2388e0 | 436 | if (streamInputReader.getCurrentEvent() != null) { |
93a45b54 | 437 | fPrio.add(streamInputReader); |
ce2388e0 FC |
438 | } |
439 | } | |
866e5b51 FC |
440 | return hasMoreEvents(); |
441 | } | |
442 | ||
9ac2eb62 | 443 | /** |
ecb12461 | 444 | * Gets the stream with the oldest event |
9ac2eb62 MK |
445 | * |
446 | * @return the stream with the oldest event | |
447 | */ | |
d84419e1 | 448 | public CTFStreamInputReader getTopStream() { |
93a45b54 | 449 | return fPrio.peek(); |
ce2388e0 FC |
450 | } |
451 | ||
866e5b51 FC |
452 | /** |
453 | * Does the trace have more events? | |
454 | * | |
455 | * @return true if yes. | |
456 | */ | |
0594c61c | 457 | public final boolean hasMoreEvents() { |
93a45b54 | 458 | return fPrio.size() > 0; |
866e5b51 FC |
459 | } |
460 | ||
461 | /** | |
462 | * Prints the event count stats. | |
463 | */ | |
464 | public void printStats() { | |
f068c622 | 465 | printStats(LINE_LENGTH); |
866e5b51 FC |
466 | } |
467 | ||
468 | /** | |
469 | * Prints the event count stats. | |
470 | * | |
471 | * @param width | |
472 | * Width of the display. | |
473 | */ | |
474 | public void printStats(int width) { | |
475 | int numEvents = 0; | |
476 | if (width == 0) { | |
477 | return; | |
478 | } | |
479 | ||
93a45b54 | 480 | for (long i : fEventCountPerTraceFile) { |
866e5b51 FC |
481 | numEvents += i; |
482 | } | |
483 | ||
93a45b54 | 484 | for (int j = 0; j < fEventCountPerTraceFile.length; j++) { |
d84419e1 | 485 | CTFStreamInputReader se = fStreamInputReaders.get(j); |
866e5b51 | 486 | |
93a45b54 | 487 | long len = (width * fEventCountPerTraceFile[se.getName()]) |
866e5b51 FC |
488 | / numEvents; |
489 | ||
0594c61c AM |
490 | StringBuilder sb = new StringBuilder(se.getFilename()); |
491 | sb.append("\t["); //$NON-NLS-1$ | |
866e5b51 FC |
492 | |
493 | for (int i = 0; i < len; i++) { | |
494 | sb.append('+'); | |
495 | } | |
496 | ||
bfe038ff | 497 | for (long i = len; i < width; i++) { |
866e5b51 FC |
498 | sb.append(' '); |
499 | } | |
500 | ||
93a45b54 | 501 | sb.append("]\t" + fEventCountPerTraceFile[se.getName()] + " Events"); //$NON-NLS-1$//$NON-NLS-2$ |
4311ac8b | 502 | Activator.log(sb.toString()); |
866e5b51 FC |
503 | } |
504 | } | |
505 | ||
9ac2eb62 | 506 | /** |
ecb12461 | 507 | * Gets the last event timestamp that was read. This is NOT necessarily the |
9ac2eb62 MK |
508 | * last event in a trace, just the last one read so far. |
509 | * | |
510 | * @return the last event | |
511 | */ | |
866e5b51 | 512 | public long getEndTime() { |
93a45b54 | 513 | return fEndTime; |
866e5b51 FC |
514 | } |
515 | ||
6a5251eb MK |
516 | /** |
517 | * Sets a trace to be live or not | |
518 | * | |
519 | * @param live | |
520 | * whether the trace is live | |
6a5251eb MK |
521 | */ |
522 | public void setLive(boolean live) { | |
d84419e1 | 523 | for (CTFStreamInputReader s : fPrio) { |
6a5251eb MK |
524 | s.setLive(live); |
525 | } | |
526 | } | |
527 | ||
528 | /** | |
529 | * Get if the trace is to read live or not | |
530 | * | |
531 | * @return whether the trace is live or not | |
6a5251eb MK |
532 | */ |
533 | public boolean isLive() { | |
0af5eb9a | 534 | return getTopStream().isLive(); |
6a5251eb MK |
535 | } |
536 | ||
866e5b51 FC |
537 | @Override |
538 | public int hashCode() { | |
539 | final int prime = 31; | |
540 | int result = 1; | |
93a45b54 MK |
541 | result = (prime * result) + (int) (fStartTime ^ (fStartTime >>> 32)); |
542 | result = (prime * result) + fStreamInputReaders.hashCode(); | |
543 | result = (prime * result) + ((fTrace == null) ? 0 : fTrace.hashCode()); | |
866e5b51 FC |
544 | return result; |
545 | } | |
546 | ||
547 | @Override | |
548 | public boolean equals(Object obj) { | |
549 | if (this == obj) { | |
550 | return true; | |
551 | } | |
552 | if (obj == null) { | |
553 | return false; | |
554 | } | |
07002e0a | 555 | if (!(obj instanceof CTFTraceReader)) { |
866e5b51 FC |
556 | return false; |
557 | } | |
558 | CTFTraceReader other = (CTFTraceReader) obj; | |
93a45b54 | 559 | if (!fStreamInputReaders.equals(other.fStreamInputReaders)) { |
866e5b51 FC |
560 | return false; |
561 | } | |
93a45b54 MK |
562 | if (fTrace == null) { |
563 | if (other.fTrace != null) { | |
866e5b51 FC |
564 | return false; |
565 | } | |
93a45b54 | 566 | } else if (!fTrace.equals(other.fTrace)) { |
866e5b51 FC |
567 | return false; |
568 | } | |
569 | return true; | |
570 | } | |
571 | ||
866e5b51 FC |
572 | @Override |
573 | public String toString() { | |
574 | /* Only for debugging, shouldn't be externalized */ | |
93a45b54 | 575 | return "CTFTraceReader [trace=" + fTrace + ']'; //$NON-NLS-1$ |
866e5b51 FC |
576 | } |
577 | ||
9ac2eb62 MK |
578 | /** |
579 | * Gets the parent trace | |
580 | * | |
581 | * @return the parent trace | |
582 | */ | |
866e5b51 | 583 | public CTFTrace getTrace() { |
93a45b54 | 584 | return fTrace; |
866e5b51 | 585 | } |
4a32dd11 MK |
586 | |
587 | /** | |
588 | * This will read the entire trace and populate all the indexes. The reader | |
589 | * will then be reset to the first event in the trace. | |
590 | * | |
591 | * Do not call in the fast path. | |
592 | * | |
593 | * @throws CTFException | |
594 | * A trace reading error occurred | |
595 | * @since 1.0 | |
596 | */ | |
597 | public void populateIndex() throws CTFException { | |
598 | for (CTFStreamInputReader sir : fPrio) { | |
599 | sir.goToLastEvent(); | |
600 | } | |
601 | seek(0); | |
602 | ||
603 | } | |
866e5b51 | 604 | } |