Commit | Line | Data |
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9c312311 | 1 | /* This file is part of the Linux Trace Toolkit viewer |
2 | * Copyright (C) 2003-2004 Michel Dagenais | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License Version 2 as | |
6 | * published by the Free Software Foundation; | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, write to the Free Software | |
15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
16 | * MA 02111-1307, USA. | |
17 | */ | |
18 | ||
4e4d11b3 | 19 | #ifdef HAVE_CONFIG_H |
20 | #include <config.h> | |
21 | #endif | |
22 | ||
00e74b69 | 23 | #include <string.h> |
f0ca53e9 | 24 | #include <lttv/lttv.h> |
d8f124de | 25 | #include <lttv/tracecontext.h> |
ffd54a90 | 26 | #include <ltt/event.h> |
a5dcde2f | 27 | #include <ltt/trace.h> |
33e44b82 | 28 | #include <lttv/filter.h> |
27304273 | 29 | #include <errno.h> |
3667f07d | 30 | #include <ltt/time.h> |
dc877563 | 31 | |
922581a4 YB |
32 | #include <babeltrace/context.h> |
33 | #include <babeltrace/iterator.h> | |
34 | ||
35 | #include <babeltrace/ctf/events.h> | |
36 | #include <babeltrace/ctf/iterator.h> | |
37 | ||
27304273 | 38 | gint compare_tracefile(gconstpointer a, gconstpointer b) |
8697a616 | 39 | { |
90e19f82 AM |
40 | gint comparison = 0; |
41 | ||
42 | const LttvTracefileContext *trace_a = (const LttvTracefileContext *)a; | |
43 | const LttvTracefileContext *trace_b = (const LttvTracefileContext *)b; | |
44 | ||
45 | if(likely(trace_a != trace_b)) { | |
46 | comparison = ltt_time_compare(trace_a->timestamp, trace_b->timestamp); | |
47 | if(unlikely(comparison == 0)) { | |
48 | if(trace_a->index < trace_b->index) comparison = -1; | |
49 | else if(trace_a->index > trace_b->index) comparison = 1; | |
50 | else if(trace_a->t_context->index < trace_b->t_context->index) | |
51 | comparison = -1; | |
52 | else if(trace_a->t_context->index > trace_b->t_context->index) | |
53 | comparison = 1; | |
54 | } | |
55 | } | |
56 | return comparison; | |
8697a616 | 57 | } |
58 | ||
9ba3aaaf | 59 | typedef struct _LttvTracefileContextPosition { |
90e19f82 AM |
60 | LttEventPosition *event; |
61 | LttvTracefileContext *tfc; | |
62 | gboolean used; /* Tells if the tfc is at end of traceset position */ | |
9ba3aaaf | 63 | } LttvTracefileContextPosition; |
64 | ||
65 | ||
8697a616 | 66 | struct _LttvTracesetContextPosition { |
90e19f82 AM |
67 | GArray *tfcp; /* Array of LttvTracefileContextPosition */ |
68 | LttTime timestamp; /* Current time at the saved position */ | |
69 | /* If ltt_time_infinite : no position is | |
70 | * set, else, a position is set (may be end | |
71 | * of trace, with ep->len == 0) */ | |
8697a616 | 72 | }; |
73 | ||
ffd54a90 | 74 | void lttv_context_init(LttvTracesetContext *self, LttvTraceset *ts) |
dc877563 | 75 | { |
90e19f82 | 76 | LTTV_TRACESET_CONTEXT_GET_CLASS(self)->init(self, ts); |
dc877563 | 77 | } |
78 | ||
79 | ||
80 | void lttv_context_fini(LttvTracesetContext *self) | |
81 | { | |
90e19f82 | 82 | LTTV_TRACESET_CONTEXT_GET_CLASS(self)->fini(self); |
dc877563 | 83 | } |
84 | ||
85 | ||
86 | LttvTracesetContext * | |
87 | lttv_context_new_traceset_context(LttvTracesetContext *self) | |
88 | { | |
90e19f82 | 89 | return LTTV_TRACESET_CONTEXT_GET_CLASS(self)->new_traceset_context(self); |
dc877563 | 90 | } |
91 | ||
92 | ||
93 | ||
94 | ||
95 | LttvTraceContext * | |
96 | lttv_context_new_trace_context(LttvTracesetContext *self) | |
97 | { | |
90e19f82 | 98 | return LTTV_TRACESET_CONTEXT_GET_CLASS(self)->new_trace_context(self); |
dc877563 | 99 | } |
100 | ||
101 | ||
102 | LttvTracefileContext * | |
103 | lttv_context_new_tracefile_context(LttvTracesetContext *self) | |
104 | { | |
90e19f82 | 105 | return LTTV_TRACESET_CONTEXT_GET_CLASS(self)->new_tracefile_context(self); |
dc877563 | 106 | } |
107 | ||
f7afe191 | 108 | /**************************************************************************** |
109 | * lttv_traceset_context_compute_time_span | |
110 | * | |
14bc9b7c | 111 | * Keep the time span in sync with on the fly addition and removal of traces |
f7afe191 | 112 | * in a trace set. It must be called each time a trace is added/removed from |
113 | * the traceset. It could be more efficient to call it only once a bunch | |
114 | * of traces are loaded, but the calculation is not long, so it's not | |
115 | * critical. | |
116 | * | |
117 | * Author : Xang Xiu Yang | |
f7afe191 | 118 | ***************************************************************************/ |
800dfee0 BP |
119 | void lttv_traceset_context_compute_time_span(LttvTracesetContext *self, |
120 | TimeInterval *time_span) | |
f7afe191 | 121 | { |
90e19f82 AM |
122 | LttvTraceset * traceset = self->ts; |
123 | int numTraces = lttv_traceset_number(traceset); | |
124 | int i; | |
125 | LttTime s, e; | |
126 | LttvTraceContext *tc; | |
127 | LttTrace * trace; | |
128 | ||
129 | time_span->start_time.tv_sec = 0; | |
130 | time_span->start_time.tv_nsec = 0; | |
131 | time_span->end_time.tv_sec = 0; | |
132 | time_span->end_time.tv_nsec = 0; | |
133 | ||
134 | for(i=0; i<numTraces;i++){ | |
135 | tc = self->traces[i]; | |
136 | trace = tc->t; | |
137 | ||
138 | ltt_trace_time_span_get(trace, &s, &e); | |
139 | tc->time_span.start_time = s; | |
140 | tc->time_span.end_time = e; | |
141 | ||
142 | if(i==0){ | |
143 | time_span->start_time = s; | |
144 | time_span->end_time = e; | |
145 | } else { | |
146 | if(s.tv_sec < time_span->start_time.tv_sec | |
147 | || (s.tv_sec == time_span->start_time.tv_sec | |
148 | && s.tv_nsec < time_span->start_time.tv_nsec)) | |
149 | time_span->start_time = s; | |
150 | if(e.tv_sec > time_span->end_time.tv_sec | |
151 | || (e.tv_sec == time_span->end_time.tv_sec | |
152 | && e.tv_nsec > time_span->end_time.tv_nsec)) | |
153 | time_span->end_time = e; | |
154 | } | |
155 | } | |
f7afe191 | 156 | } |
157 | ||
eed2ef37 | 158 | static void init_tracefile_context(LttTracefile *tracefile, |
90e19f82 | 159 | LttvTraceContext *tc) |
eed2ef37 | 160 | { |
90e19f82 AM |
161 | LttvTracefileContext *tfc; |
162 | LttvTracesetContext *tsc = tc->ts_context; | |
eed2ef37 | 163 | |
90e19f82 | 164 | tfc = LTTV_TRACESET_CONTEXT_GET_CLASS(tsc)->new_tracefile_context(tsc); |
eed2ef37 | 165 | |
90e19f82 AM |
166 | tfc->index = tc->tracefiles->len; |
167 | tc->tracefiles = g_array_append_val(tc->tracefiles, tfc); | |
eed2ef37 | 168 | |
90e19f82 AM |
169 | tfc->tf = tracefile; |
170 | ||
171 | tfc->t_context = tc; | |
172 | tfc->event = lttv_hooks_new(); | |
173 | tfc->event_by_id = lttv_hooks_by_id_new(); | |
174 | tfc->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); | |
175 | tfc->target_pid = -1; | |
eed2ef37 | 176 | } |
177 | ||
dc877563 | 178 | |
179 | static void | |
180 | init(LttvTracesetContext *self, LttvTraceset *ts) | |
181 | { | |
90e19f82 AM |
182 | guint i, nb_trace; |
183 | ||
184 | LttvTraceContext *tc; | |
185 | ||
186 | GData **tracefiles_groups; | |
187 | ||
188 | struct compute_tracefile_group_args args; | |
922581a4 YB |
189 | |
190 | struct bt_iter_pos begin_pos; | |
90e19f82 AM |
191 | |
192 | nb_trace = lttv_traceset_number(ts); | |
193 | self->ts = ts; | |
194 | self->traces = g_new(LttvTraceContext *, nb_trace); | |
195 | self->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); | |
196 | self->ts_a = lttv_traceset_attribute(ts); | |
922581a4 YB |
197 | |
198 | begin_pos.type = BT_SEEK_BEGIN; | |
199 | ||
200 | self->iter = bt_ctf_iter_create(lttv_traceset_get_context(ts), | |
201 | &begin_pos, | |
202 | NULL); | |
203 | self->event_hooks = lttv_hooks_new(); | |
204 | #ifdef BABEL_CLEANUP | |
90e19f82 AM |
205 | for(i = 0 ; i < nb_trace ; i++) { |
206 | tc = LTTV_TRACESET_CONTEXT_GET_CLASS(self)->new_trace_context(self); | |
207 | self->traces[i] = tc; | |
208 | ||
209 | tc->ts_context = self; | |
210 | tc->index = i; | |
211 | tc->vt = lttv_traceset_get(ts, i); | |
212 | tc->t = lttv_trace(tc->vt); | |
213 | tc->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); | |
214 | tc->t_a = lttv_trace_attribute(tc->vt); | |
215 | tc->tracefiles = g_array_sized_new(FALSE, TRUE, | |
216 | sizeof(LttvTracefileContext*), 10); | |
217 | ||
218 | tracefiles_groups = ltt_trace_get_tracefiles_groups(tc->t); | |
219 | if(tracefiles_groups != NULL) { | |
220 | args.func = (ForEachTraceFileFunc)init_tracefile_context; | |
221 | args.func_args = tc; | |
222 | ||
223 | g_datalist_foreach(tracefiles_groups, | |
224 | (GDataForeachFunc)compute_tracefile_group, | |
225 | &args); | |
226 | } | |
227 | ||
eed2ef37 | 228 | |
90e19f82 | 229 | } |
922581a4 | 230 | #endif |
90e19f82 AM |
231 | self->sync_position = lttv_traceset_context_position_new(self); |
232 | self->pqueue = g_tree_new(compare_tracefile); | |
233 | lttv_process_traceset_seek_time(self, ltt_time_zero); | |
234 | lttv_traceset_context_compute_time_span(self, &self->time_span); | |
8697a616 | 235 | |
dc877563 | 236 | } |
237 | ||
238 | ||
239 | void fini(LttvTracesetContext *self) | |
240 | { | |
90e19f82 | 241 | guint i, j, nb_trace, nb_tracefile; |
dc877563 | 242 | |
90e19f82 | 243 | LttvTraceContext *tc; |
dc877563 | 244 | |
90e19f82 | 245 | LttvTracefileContext **tfc; |
dc877563 | 246 | |
90e19f82 | 247 | LttvTraceset *ts = self->ts; |
dc877563 | 248 | |
90e19f82 AM |
249 | g_tree_destroy(self->pqueue); |
250 | g_object_unref(self->a); | |
251 | lttv_traceset_context_position_destroy(self->sync_position); | |
dc877563 | 252 | |
90e19f82 | 253 | nb_trace = lttv_traceset_number(ts); |
dc877563 | 254 | |
90e19f82 AM |
255 | for(i = 0 ; i < nb_trace ; i++) { |
256 | tc = self->traces[i]; | |
dc877563 | 257 | |
90e19f82 | 258 | g_object_unref(tc->a); |
dc877563 | 259 | |
90e19f82 | 260 | nb_tracefile = tc->tracefiles->len; |
dc877563 | 261 | |
90e19f82 AM |
262 | for(j = 0 ; j < nb_tracefile ; j++) { |
263 | tfc = &g_array_index(tc->tracefiles, LttvTracefileContext*, j); | |
264 | lttv_hooks_destroy((*tfc)->event); | |
265 | lttv_hooks_by_id_destroy((*tfc)->event_by_id); | |
266 | g_object_unref((*tfc)->a); | |
267 | g_object_unref(*tfc); | |
268 | } | |
269 | g_array_free(tc->tracefiles, TRUE); | |
270 | g_object_unref(tc); | |
271 | } | |
272 | g_free(self->traces); | |
dc877563 | 273 | } |
274 | ||
275 | ||
276 | void lttv_traceset_context_add_hooks(LttvTracesetContext *self, | |
90e19f82 AM |
277 | LttvHooks *before_traceset, |
278 | LttvHooks *before_trace, | |
279 | LttvHooks *before_tracefile, | |
280 | LttvHooks *event, | |
281 | LttvHooksByIdChannelArray *event_by_id_channel) | |
dc877563 | 282 | { |
90e19f82 | 283 | LttvTraceset *ts = self->ts; |
dc877563 | 284 | |
90e19f82 | 285 | guint i, nb_trace; |
dc877563 | 286 | |
90e19f82 | 287 | LttvTraceContext *tc; |
dc877563 | 288 | |
90e19f82 | 289 | lttv_hooks_call(before_traceset, self); |
922581a4 YB |
290 | |
291 | lttv_hooks_add_list(self->event_hooks, event); | |
dc877563 | 292 | |
90e19f82 | 293 | nb_trace = lttv_traceset_number(ts); |
dc877563 | 294 | |
90e19f82 AM |
295 | for(i = 0 ; i < nb_trace ; i++) { |
296 | tc = self->traces[i]; | |
297 | lttv_trace_context_add_hooks(tc, | |
298 | before_trace, | |
299 | before_tracefile, | |
300 | event, | |
301 | event_by_id_channel); | |
302 | } | |
dc877563 | 303 | } |
304 | ||
305 | ||
306 | void lttv_traceset_context_remove_hooks(LttvTracesetContext *self, | |
90e19f82 AM |
307 | LttvHooks *after_traceset, |
308 | LttvHooks *after_trace, | |
309 | LttvHooks *after_tracefile, | |
310 | LttvHooks *event, | |
311 | LttvHooksByIdChannelArray *event_by_id_channel) | |
dc877563 | 312 | { |
8697a616 | 313 | |
90e19f82 | 314 | LttvTraceset *ts = self->ts; |
dc877563 | 315 | |
90e19f82 | 316 | guint i, nb_trace; |
dc877563 | 317 | |
90e19f82 | 318 | LttvTraceContext *tc; |
dc877563 | 319 | |
90e19f82 | 320 | nb_trace = lttv_traceset_number(ts); |
dc877563 | 321 | |
90e19f82 AM |
322 | for(i = 0 ; i < nb_trace ; i++) { |
323 | tc = self->traces[i]; | |
324 | lttv_trace_context_remove_hooks(tc, | |
325 | after_trace, | |
326 | after_tracefile, | |
327 | event, | |
328 | event_by_id_channel); | |
329 | } | |
8697a616 | 330 | |
90e19f82 | 331 | lttv_hooks_call(after_traceset, self); |
8697a616 | 332 | |
333 | ||
dc877563 | 334 | } |
335 | ||
8697a616 | 336 | void lttv_trace_context_add_hooks(LttvTraceContext *self, |
90e19f82 AM |
337 | LttvHooks *before_trace, |
338 | LttvHooks *before_tracefile, | |
339 | LttvHooks *event, | |
340 | LttvHooksByIdChannelArray *event_by_id_channel) | |
a8c0f09d | 341 | { |
90e19f82 AM |
342 | guint i, j, nb_tracefile; |
343 | LttvTracefileContext **tfc; | |
344 | LttTracefile *tf; | |
345 | ||
346 | lttv_hooks_call(before_trace, self); | |
347 | ||
348 | nb_tracefile = self->tracefiles->len; | |
349 | ||
350 | for(i = 0 ; i < nb_tracefile ; i++) { | |
351 | tfc = &g_array_index(self->tracefiles, LttvTracefileContext*, i); | |
352 | tf = (*tfc)->tf; | |
353 | lttv_tracefile_context_add_hooks(*tfc, | |
354 | before_tracefile, | |
355 | event, | |
356 | NULL); | |
357 | if (event_by_id_channel) { | |
358 | for(j = 0; j < event_by_id_channel->array->len; j++) { | |
359 | LttvHooksByIdChannel *hooks = | |
360 | &g_array_index(event_by_id_channel->array, | |
361 | LttvHooksByIdChannel, j); | |
362 | if (tf->name == hooks->channel) | |
363 | lttv_tracefile_context_add_hooks(*tfc, | |
364 | NULL, | |
365 | NULL, | |
366 | hooks->hooks_by_id); | |
367 | } | |
368 | } | |
369 | } | |
a8c0f09d | 370 | } |
371 | ||
8697a616 | 372 | |
373 | ||
374 | void lttv_trace_context_remove_hooks(LttvTraceContext *self, | |
90e19f82 AM |
375 | LttvHooks *after_trace, |
376 | LttvHooks *after_tracefile, | |
377 | LttvHooks *event, | |
378 | LttvHooksByIdChannelArray *event_by_id_channel) | |
a8c0f09d | 379 | { |
90e19f82 AM |
380 | guint i, j, nb_tracefile; |
381 | LttvTracefileContext **tfc; | |
382 | LttTracefile *tf; | |
383 | ||
384 | nb_tracefile = self->tracefiles->len; | |
385 | ||
386 | for(i = 0 ; i < nb_tracefile ; i++) { | |
387 | tfc = &g_array_index(self->tracefiles, LttvTracefileContext*, i); | |
388 | tf = (*tfc)->tf; | |
389 | if (event_by_id_channel) { | |
390 | for(j = 0; j < event_by_id_channel->array->len; j++) { | |
391 | LttvHooksByIdChannel *hooks = | |
392 | &g_array_index(event_by_id_channel->array, | |
393 | LttvHooksByIdChannel, j); | |
394 | if (tf->name == hooks->channel) | |
395 | lttv_tracefile_context_remove_hooks(*tfc, | |
396 | NULL, | |
397 | NULL, | |
398 | hooks->hooks_by_id); | |
399 | } | |
400 | } | |
401 | lttv_tracefile_context_remove_hooks(*tfc, | |
402 | after_tracefile, | |
403 | event, | |
404 | NULL); | |
405 | ||
406 | } | |
407 | ||
408 | lttv_hooks_call(after_trace, self); | |
a8c0f09d | 409 | } |
410 | ||
8697a616 | 411 | void lttv_tracefile_context_add_hooks(LttvTracefileContext *self, |
90e19f82 AM |
412 | LttvHooks *before_tracefile, |
413 | LttvHooks *event, | |
414 | LttvHooksById *event_by_id) | |
a8c0f09d | 415 | { |
90e19f82 AM |
416 | guint i, index; |
417 | LttvHooks *hook; | |
418 | ||
419 | lttv_hooks_call(before_tracefile, self); | |
420 | lttv_hooks_add_list(self->event, event); | |
421 | if(event_by_id != NULL) { | |
422 | for(i = 0; i < event_by_id->array->len; i++) { | |
423 | index = g_array_index(event_by_id->array, guint, i); | |
424 | hook = lttv_hooks_by_id_find(self->event_by_id, index); | |
425 | lttv_hooks_add_list(hook, lttv_hooks_by_id_get(event_by_id, index)); | |
426 | } | |
427 | } | |
a8c0f09d | 428 | } |
429 | ||
8697a616 | 430 | void lttv_tracefile_context_remove_hooks(LttvTracefileContext *self, |
90e19f82 AM |
431 | LttvHooks *after_tracefile, |
432 | LttvHooks *event, | |
433 | LttvHooksById *event_by_id) | |
a8c0f09d | 434 | { |
90e19f82 AM |
435 | guint i, index; |
436 | ||
437 | LttvHooks *hook; | |
438 | ||
439 | lttv_hooks_remove_list(self->event, event); | |
440 | if(event_by_id != NULL) { | |
441 | for(i = 0; i < event_by_id->array->len; i++) { | |
442 | index = g_array_index(event_by_id->array, guint, i); | |
443 | hook = lttv_hooks_by_id_get(self->event_by_id, index); | |
444 | if(hook != NULL) | |
445 | lttv_hooks_remove_list(hook, lttv_hooks_by_id_get(event_by_id, index)); | |
446 | } | |
447 | } | |
448 | ||
449 | lttv_hooks_call(after_tracefile, self); | |
a8c0f09d | 450 | } |
451 | ||
90e19f82 | 452 | static LttvTracesetContext *new_traceset_context(LttvTracesetContext *self) |
dc877563 | 453 | { |
90e19f82 | 454 | return g_object_new(LTTV_TRACESET_CONTEXT_TYPE, NULL); |
dc877563 | 455 | } |
456 | ||
457 | ||
90e19f82 | 458 | static LttvTraceContext *new_trace_context(LttvTracesetContext *self) |
dc877563 | 459 | { |
90e19f82 | 460 | return g_object_new(LTTV_TRACE_CONTEXT_TYPE, NULL); |
dc877563 | 461 | } |
462 | ||
463 | ||
90e19f82 | 464 | static LttvTracefileContext *new_tracefile_context(LttvTracesetContext *self) |
dc877563 | 465 | { |
90e19f82 | 466 | return g_object_new(LTTV_TRACEFILE_CONTEXT_TYPE, NULL); |
dc877563 | 467 | } |
468 | ||
469 | ||
90e19f82 AM |
470 | static void traceset_context_instance_init(GTypeInstance *instance, |
471 | gpointer g_class) | |
dc877563 | 472 | { |
90e19f82 | 473 | /* Be careful of anything which would not work well with shallow copies */ |
dc877563 | 474 | } |
475 | ||
476 | ||
90e19f82 | 477 | static void traceset_context_finalize(LttvTracesetContext *self) |
dc877563 | 478 | { |
90e19f82 AM |
479 | G_OBJECT_CLASS(g_type_class_peek(g_type_parent(LTTV_TRACESET_CONTEXT_TYPE))) |
480 | ->finalize(G_OBJECT(self)); | |
dc877563 | 481 | } |
482 | ||
483 | ||
90e19f82 | 484 | static void traceset_context_class_init(LttvTracesetContextClass *klass) |
dc877563 | 485 | { |
90e19f82 AM |
486 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
487 | ||
488 | gobject_class->finalize = (void (*)(GObject *self))traceset_context_finalize; | |
489 | klass->init = init; | |
490 | klass->fini = fini; | |
491 | klass->new_traceset_context = new_traceset_context; | |
492 | klass->new_trace_context = new_trace_context; | |
493 | klass->new_tracefile_context = new_tracefile_context; | |
dc877563 | 494 | } |
495 | ||
496 | ||
90e19f82 | 497 | GType lttv_traceset_context_get_type(void) |
dc877563 | 498 | { |
90e19f82 AM |
499 | static GType type = 0; |
500 | if (type == 0) { | |
501 | static const GTypeInfo info = { | |
502 | sizeof (LttvTracesetContextClass), | |
503 | NULL, /* base_init */ | |
504 | NULL, /* base_finalize */ | |
505 | (GClassInitFunc) traceset_context_class_init, /* class_init */ | |
506 | NULL, /* class_finalize */ | |
507 | NULL, /* class_data */ | |
508 | sizeof (LttvTracesetContext), | |
509 | 0, /* n_preallocs */ | |
510 | (GInstanceInitFunc) traceset_context_instance_init, /* instance_init */ | |
511 | NULL /* Value handling */ | |
512 | }; | |
513 | ||
514 | type = g_type_register_static (G_TYPE_OBJECT, "LttvTracesetContextType", | |
515 | &info, 0); | |
516 | } | |
517 | return type; | |
dc877563 | 518 | } |
519 | ||
520 | ||
521 | static void | |
522 | trace_context_instance_init (GTypeInstance *instance, gpointer g_class) | |
523 | { | |
90e19f82 | 524 | /* Be careful of anything which would not work well with shallow copies */ |
dc877563 | 525 | } |
526 | ||
527 | ||
90e19f82 | 528 | static void trace_context_finalize (LttvTraceContext *self) |
dc877563 | 529 | { |
90e19f82 AM |
530 | G_OBJECT_CLASS(g_type_class_peek(g_type_parent(LTTV_TRACE_CONTEXT_TYPE)))-> |
531 | finalize(G_OBJECT(self)); | |
dc877563 | 532 | } |
533 | ||
534 | ||
90e19f82 | 535 | static void trace_context_class_init (LttvTraceContextClass *klass) |
dc877563 | 536 | { |
90e19f82 | 537 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
dc877563 | 538 | |
90e19f82 | 539 | gobject_class->finalize = (void (*)(GObject *self)) trace_context_finalize; |
dc877563 | 540 | } |
541 | ||
542 | ||
90e19f82 | 543 | GType lttv_trace_context_get_type(void) |
dc877563 | 544 | { |
90e19f82 AM |
545 | static GType type = 0; |
546 | if (type == 0) { | |
547 | static const GTypeInfo info = { | |
548 | sizeof (LttvTraceContextClass), | |
549 | NULL, /* base_init */ | |
550 | NULL, /* base_finalize */ | |
551 | (GClassInitFunc) trace_context_class_init, /* class_init */ | |
552 | NULL, /* class_finalize */ | |
553 | NULL, /* class_data */ | |
554 | sizeof (LttvTraceContext), | |
555 | 0, /* n_preallocs */ | |
556 | (GInstanceInitFunc) trace_context_instance_init, /* instance_init */ | |
557 | NULL /* Value handling */ | |
558 | }; | |
559 | ||
560 | type = g_type_register_static (G_TYPE_OBJECT, "LttvTraceContextType", | |
561 | &info, 0); | |
562 | } | |
563 | return type; | |
dc877563 | 564 | } |
565 | ||
566 | ||
90e19f82 AM |
567 | static void tracefile_context_instance_init (GTypeInstance *instance, |
568 | gpointer g_class) | |
dc877563 | 569 | { |
90e19f82 | 570 | /* Be careful of anything which would not work well with shallow copies */ |
dc877563 | 571 | } |
572 | ||
573 | ||
90e19f82 | 574 | static void tracefile_context_finalize (LttvTracefileContext *self) |
dc877563 | 575 | { |
90e19f82 AM |
576 | G_OBJECT_CLASS(g_type_class_peek(g_type_parent(LTTV_TRACEFILE_CONTEXT_TYPE))) |
577 | ->finalize(G_OBJECT(self)); | |
dc877563 | 578 | } |
579 | ||
580 | ||
90e19f82 | 581 | static void tracefile_context_class_init (LttvTracefileContextClass *klass) |
dc877563 | 582 | { |
90e19f82 | 583 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
dc877563 | 584 | |
90e19f82 | 585 | gobject_class->finalize = (void (*)(GObject *self))tracefile_context_finalize; |
ffd54a90 | 586 | } |
587 | ||
588 | ||
90e19f82 | 589 | GType lttv_tracefile_context_get_type(void) |
ffd54a90 | 590 | { |
90e19f82 AM |
591 | static GType type = 0; |
592 | if (type == 0) { | |
593 | static const GTypeInfo info = { | |
594 | sizeof (LttvTracefileContextClass), | |
595 | NULL, /* base_init */ | |
596 | NULL, /* base_finalize */ | |
597 | (GClassInitFunc) tracefile_context_class_init, /* class_init */ | |
598 | NULL, /* class_finalize */ | |
599 | NULL, /* class_data */ | |
600 | sizeof (LttvTracefileContext), | |
601 | 0, /* n_preallocs */ | |
602 | (GInstanceInitFunc) tracefile_context_instance_init, /* instance_init */ | |
603 | NULL /* Value handling */ | |
604 | }; | |
605 | ||
606 | type = g_type_register_static (G_TYPE_OBJECT, "LttvTracefileContextType", | |
607 | &info, 0); | |
608 | } | |
609 | return type; | |
dc877563 | 610 | } |
611 | ||
612 | ||
dc877563 | 613 | |
6843100a | 614 | static gboolean get_first(gpointer key, gpointer value, gpointer user_data) { |
90e19f82 AM |
615 | g_assert(key == value); |
616 | *((LttvTracefileContext **)user_data) = (LttvTracefileContext *)value; | |
617 | return TRUE; | |
dc877563 | 618 | } |
619 | ||
e7f5e89d | 620 | #ifdef DEBUG |
621 | // Test to see if pqueue is traversed in the right order. | |
622 | static LttTime test_time; | |
623 | ||
698e81c2 | 624 | static gboolean test_tree(gpointer key, gpointer value, gpointer user_data) { |
625 | ||
90e19f82 AM |
626 | LttvTracefileContext *tfc = (LttvTracefileContext *)key; |
627 | ||
628 | g_debug("Tracefile name %s, time %lu.%lu, tfi %u, ti %u", | |
629 | g_quark_to_string(ltt_tracefile_name(tfc->tf)), | |
630 | tfc->timestamp.tv_sec, tfc->timestamp.tv_nsec, | |
631 | tfc->index, tfc->t_context->index); | |
632 | ||
633 | if(user_data != NULL) { | |
634 | if(((LttvTracefileContext *)user_data) == (LttvTracefileContext *)value) { | |
635 | g_assert(compare_tracefile(user_data, value) == 0); | |
636 | } else | |
637 | g_assert(compare_tracefile(user_data, value) != 0); | |
638 | } | |
639 | g_assert(ltt_time_compare(test_time, tfc->timestamp) <= 0); | |
640 | test_time.tv_sec = tfc->timestamp.tv_sec; | |
641 | test_time.tv_nsec = tfc->timestamp.tv_nsec; | |
642 | ||
643 | ||
644 | //g_assert(((LttvTracefileContext *)user_data) != (LttvTracefileContext *)value); | |
645 | return FALSE; | |
698e81c2 | 646 | } |
e7f5e89d | 647 | #endif //DEBUG |
698e81c2 | 648 | |
649 | ||
dc877563 | 650 | |
8697a616 | 651 | void lttv_process_traceset_begin(LttvTracesetContext *self, |
90e19f82 AM |
652 | LttvHooks *before_traceset, |
653 | LttvHooks *before_trace, | |
654 | LttvHooks *before_tracefile, | |
655 | LttvHooks *event, | |
656 | LttvHooksByIdChannelArray *event_by_id_channel) | |
8697a616 | 657 | { |
dc877563 | 658 | |
90e19f82 AM |
659 | /* simply add hooks in context. _before hooks are called by add_hooks. */ |
660 | /* It calls all before_traceset, before_trace, and before_tracefile hooks. */ | |
661 | lttv_traceset_context_add_hooks(self, | |
662 | before_traceset, | |
663 | before_trace, | |
664 | before_tracefile, | |
665 | event, | |
666 | event_by_id_channel); | |
667 | ||
2a2fa4f0 | 668 | } |
669 | ||
bd4c3eca | 670 | //enum read_state { LAST_NONE, LAST_OK, LAST_EMPTY }; |
36d36c9f | 671 | |
8697a616 | 672 | /* Note : a _middle must be preceded from a _seek or another middle */ |
673 | guint lttv_process_traceset_middle(LttvTracesetContext *self, | |
90e19f82 AM |
674 | LttTime end, |
675 | gulong nb_events, | |
676 | const LttvTracesetContextPosition *end_position) | |
2a2fa4f0 | 677 | { |
922581a4 YB |
678 | |
679 | unsigned count = 0; | |
680 | ||
681 | struct bt_ctf_event *event; | |
682 | ||
683 | while(TRUE) { | |
684 | ||
685 | if((count >= nb_events) && (nb_events != G_MAXULONG)) { | |
686 | break; | |
687 | } | |
688 | ||
689 | if((event = bt_ctf_iter_read_event(self->iter)) != NULL) { | |
690 | ||
691 | count++; | |
692 | ||
693 | /* TODO ybrosseau: encapsulate the event into something */ | |
694 | lttv_hooks_call(self->event_hooks, event); | |
695 | ||
696 | if(bt_iter_next(bt_ctf_get_iter(self->iter)) < 0) { | |
697 | printf("ERROR NEXT\n"); | |
698 | break; | |
699 | } | |
700 | } else { | |
701 | /* READ FAILED */ | |
702 | ||
703 | break; | |
704 | ||
705 | } | |
706 | } | |
707 | ||
708 | ||
709 | ||
710 | return count; | |
711 | #ifdef BABEL_CLEANUP | |
90e19f82 AM |
712 | GTree *pqueue = self->pqueue; |
713 | ||
714 | LttvTracefileContext *tfc; | |
715 | ||
716 | LttEvent *e; | |
717 | ||
718 | unsigned count = 0; | |
719 | ||
3667f07d YB |
720 | gboolean is_live = FALSE; /* set this flag if we detect a live trace */ |
721 | ||
90e19f82 AM |
722 | guint read_ret; |
723 | ||
724 | //enum read_state last_read_state = LAST_NONE; | |
725 | ||
726 | gint last_ret = 0; /* return value of the last hook list called */ | |
727 | ||
728 | /* Get the next event from the pqueue, call its hooks, | |
729 | reinsert in the pqueue the following event from the same tracefile | |
730 | unless the tracefile is finished or the event is later than the | |
731 | end time. */ | |
732 | ||
733 | while(TRUE) { | |
734 | tfc = NULL; | |
735 | g_tree_foreach(pqueue, get_first, &tfc); | |
736 | /* End of traceset : tfc is NULL */ | |
737 | if(unlikely(tfc == NULL)) | |
738 | { | |
3667f07d | 739 | break; |
90e19f82 AM |
740 | } |
741 | ||
742 | /* Have we reached : | |
743 | * - the maximum number of events specified? | |
744 | * - the end position ? | |
745 | * - the end time ? | |
746 | * then the read is finished. We leave the queue in the same state and | |
747 | * break the loop. | |
748 | */ | |
3667f07d YB |
749 | if(tfc->tf->trace->is_live && ltt_time_compare(tfc->timestamp, tfc->tf->trace->live_safe_timestamp) >= 0) { |
750 | ||
751 | break; | |
752 | } | |
90e19f82 AM |
753 | if(unlikely(last_ret == TRUE |
754 | || ((count >= nb_events) && (nb_events != G_MAXULONG)) | |
755 | || (end_position!=NULL&<tv_traceset_context_ctx_pos_compare(self, | |
756 | end_position) == 0) | |
757 | || ltt_time_compare(end, tfc->timestamp) <= 0)) | |
758 | { | |
3667f07d | 759 | break; |
90e19f82 AM |
760 | } |
761 | ||
762 | /* Get the tracefile with an event for the smallest time found. If two | |
763 | or more tracefiles have events for the same time, hope that lookup | |
764 | and remove are consistent. */ | |
1986f254 | 765 | |
766 | #ifdef DEBUG | |
90e19f82 AM |
767 | test_time.tv_sec = 0; |
768 | test_time.tv_nsec = 0; | |
769 | g_debug("test tree before remove"); | |
770 | g_tree_foreach(pqueue, test_tree, tfc); | |
1986f254 | 771 | #endif //DEBUG |
90e19f82 | 772 | g_tree_remove(pqueue, tfc); |
698e81c2 | 773 | |
1986f254 | 774 | #ifdef DEBUG |
90e19f82 AM |
775 | test_time.tv_sec = 0; |
776 | test_time.tv_nsec = 0; | |
777 | g_debug("test tree after remove"); | |
778 | g_tree_foreach(pqueue, test_tree, tfc); | |
1986f254 | 779 | #endif //DEBUG |
77199e93 | 780 | |
bd4c3eca | 781 | |
90e19f82 | 782 | e = ltt_tracefile_get_event(tfc->tf); |
dc877563 | 783 | |
90e19f82 AM |
784 | //if(last_read_state != LAST_EMPTY) { |
785 | /* Only call hooks if the last read has given an event or if we are at the | |
786 | * first pass (not if last read returned end of tracefile) */ | |
787 | count++; | |
788 | ||
789 | tfc->target_pid = -1; /* unset target PID */ | |
790 | /* Hooks : | |
791 | * return values : 0 : continue read, 1 : go to next position and stop read, | |
792 | * 2 : stay at the current position and stop read */ | |
793 | last_ret = lttv_hooks_call_merge(tfc->event, tfc, | |
794 | lttv_hooks_by_id_get(tfc->event_by_id, e->event_id), tfc); | |
1fae3dd3 | 795 | |
aaecaa99 | 796 | #if 0 |
90e19f82 AM |
797 | /* This is buggy : it won't work well with state computation */ |
798 | if(unlikely(last_ret == 2)) { | |
799 | /* This is a case where we want to stay at this position and stop read. */ | |
800 | g_tree_insert(pqueue, tfc, tfc); | |
3667f07d YB |
801 | count--; |
802 | break; | |
90e19f82 | 803 | } |
aaecaa99 | 804 | #endif //0 |
90e19f82 AM |
805 | read_ret = ltt_tracefile_read(tfc->tf); |
806 | ||
807 | ||
808 | if(likely(!read_ret)) { | |
809 | //g_debug("An event is ready"); | |
810 | tfc->timestamp = ltt_event_time(e); | |
3667f07d YB |
811 | |
812 | ||
90e19f82 AM |
813 | g_assert(ltt_time_compare(tfc->timestamp, ltt_time_infinite) != 0); |
814 | g_tree_insert(pqueue, tfc, tfc); | |
3667f07d YB |
815 | if(tfc->tf->trace->is_live && ltt_time_compare(tfc->timestamp, tfc->tf->trace->live_safe_timestamp) >= 0) |
816 | { | |
817 | is_live |= TRUE; | |
818 | break; | |
819 | } | |
e7f5e89d | 820 | #ifdef DEBUG |
90e19f82 AM |
821 | test_time.tv_sec = 0; |
822 | test_time.tv_nsec = 0; | |
823 | g_debug("test tree after event ready"); | |
824 | g_tree_foreach(pqueue, test_tree, NULL); | |
e7f5e89d | 825 | #endif //DEBUG |
826 | ||
90e19f82 AM |
827 | //last_read_state = LAST_OK; |
828 | } else { | |
829 | tfc->timestamp = ltt_time_infinite; | |
830 | ||
831 | if(read_ret == ERANGE) { | |
832 | // last_read_state = LAST_EMPTY; | |
833 | g_debug("End of trace"); | |
834 | } else | |
835 | g_error("Error happened in lttv_process_traceset_middle"); | |
836 | } | |
837 | } | |
3667f07d YB |
838 | |
839 | if (unlikely((count == 0) && is_live)) { | |
840 | return -1; | |
841 | } else { | |
842 | return count; | |
843 | } | |
922581a4 YB |
844 | |
845 | #endif /* BABEL_CLEANUP */ | |
2a2fa4f0 | 846 | } |
847 | ||
848 | ||
8697a616 | 849 | void lttv_process_traceset_end(LttvTracesetContext *self, |
90e19f82 AM |
850 | LttvHooks *after_traceset, |
851 | LttvHooks *after_trace, | |
852 | LttvHooks *after_tracefile, | |
853 | LttvHooks *event, | |
854 | LttvHooksByIdChannelArray *event_by_id_channel) | |
2a2fa4f0 | 855 | { |
90e19f82 AM |
856 | /* Remove hooks from context. _after hooks are called by remove_hooks. */ |
857 | /* It calls all after_traceset, after_trace, and after_tracefile hooks. */ | |
858 | lttv_traceset_context_remove_hooks(self, | |
859 | after_traceset, | |
860 | after_trace, | |
861 | after_tracefile, | |
862 | event, | |
863 | event_by_id_channel); | |
8697a616 | 864 | } |
2a2fa4f0 | 865 | |
27304273 | 866 | /* Subtile modification : |
867 | * if tracefile has no event at or after the time requested, it is not put in | |
348c6ba8 | 868 | * the queue, as the next read would fail. |
869 | * | |
870 | * Don't forget to empty the traceset pqueue before calling this. | |
871 | */ | |
8697a616 | 872 | void lttv_process_trace_seek_time(LttvTraceContext *self, LttTime start) |
873 | { | |
922581a4 YB |
874 | |
875 | ||
876 | #ifdef BABEL_CLEANUP | |
90e19f82 AM |
877 | guint i, nb_tracefile; |
878 | ||
879 | gint ret; | |
880 | ||
881 | LttvTracefileContext **tfc; | |
2a2fa4f0 | 882 | |
90e19f82 | 883 | nb_tracefile = self->tracefiles->len; |
2a2fa4f0 | 884 | |
90e19f82 | 885 | GTree *pqueue = self->ts_context->pqueue; |
dc877563 | 886 | |
90e19f82 AM |
887 | for(i = 0 ; i < nb_tracefile ; i++) { |
888 | tfc = &g_array_index(self->tracefiles, LttvTracefileContext*, i); | |
e7f5e89d | 889 | |
90e19f82 | 890 | g_tree_remove(pqueue, *tfc); |
77199e93 | 891 | |
90e19f82 AM |
892 | ret = ltt_tracefile_seek_time((*tfc)->tf, start); |
893 | if(ret == EPERM) g_error("error in lttv_process_trace_seek_time seek"); | |
27304273 | 894 | |
90e19f82 AM |
895 | if(ret == 0) { /* not ERANGE especially */ |
896 | (*tfc)->timestamp = ltt_event_time(ltt_tracefile_get_event((*tfc)->tf)); | |
897 | g_assert(ltt_time_compare((*tfc)->timestamp, ltt_time_infinite) != 0); | |
898 | g_tree_insert(pqueue, (*tfc), (*tfc)); | |
899 | } else { | |
900 | (*tfc)->timestamp = ltt_time_infinite; | |
901 | } | |
902 | } | |
e7f5e89d | 903 | #ifdef DEBUG |
90e19f82 AM |
904 | test_time.tv_sec = 0; |
905 | test_time.tv_nsec = 0; | |
906 | g_debug("test tree after seek_time"); | |
907 | g_tree_foreach(pqueue, test_tree, NULL); | |
e7f5e89d | 908 | #endif //DEBUG |
922581a4 | 909 | #endif |
8697a616 | 910 | } |
dc877563 | 911 | |
3667f07d YB |
912 | /**************************************************************************** |
913 | * lttv_process_trace_update | |
914 | * | |
915 | * process the changes that occur in the trace. Use a regular file polling to | |
916 | * monitor the tracefile. | |
917 | * | |
918 | * Return the number of tracefile updated | |
919 | ***************************************************************************/ | |
920 | guint lttv_process_trace_update(LttvTraceContext *self) | |
921 | { | |
922 | guint i; | |
923 | guint nb_tracefile = 0; | |
924 | ||
925 | LttTracefile *tf = 0; | |
926 | LttvTracefileContext **tfc; | |
927 | ||
928 | /* Skip non live traces */ | |
929 | if(self->t->is_live) { | |
930 | ||
931 | nb_tracefile = ltt_trace_update(self->t); | |
932 | ||
933 | /* Recreate the pqueue following an update*/ | |
934 | GTree *pqueue = self->ts_context->pqueue; | |
935 | ||
936 | for(i = 0 ; i < self->tracefiles->len ; i++) { | |
937 | tfc = &g_array_index(self->tracefiles, LttvTracefileContext*, i); | |
938 | tf = (*tfc)->tf; | |
939 | if(g_tree_remove(pqueue, *tfc) == FALSE) { | |
940 | if(tf->buf_index != NULL) { | |
941 | ||
942 | if(ltt_tracefile_read(tf) == 0) { | |
943 | ||
944 | (*tfc)->timestamp = ltt_event_time(ltt_tracefile_get_event((*tfc)->tf)); | |
945 | g_tree_insert(pqueue, (*tfc), (*tfc)); | |
946 | ||
947 | } | |
948 | } | |
949 | } else { | |
950 | g_tree_insert(pqueue, (*tfc), (*tfc)); | |
951 | ||
952 | } | |
953 | ||
954 | ||
955 | } | |
956 | //Update self time span | |
957 | self->time_span.end_time = LTT_TIME_MAX(self->t->live_safe_timestamp, | |
958 | self->time_span.end_time); | |
959 | //Update self tscontext time span | |
960 | self->ts_context->time_span.end_time = LTT_TIME_MAX(self->time_span.end_time, | |
961 | self->ts_context->time_span.end_time); | |
962 | } | |
963 | return nb_tracefile; | |
964 | ||
965 | } | |
966 | ||
967 | /**************************************************************************** | |
968 | * lttv_process_traceset_update | |
969 | * | |
970 | * process the changes that occur in the traceset. | |
971 | * | |
972 | * Return the number of file presently monitor(open for writting). If 0, the | |
973 | * current traceset probably received all the data. | |
974 | ***************************************************************************/ | |
975 | guint lttv_process_traceset_update(LttvTracesetContext *self) | |
976 | { | |
977 | guint i; | |
978 | guint nb_trace; | |
979 | guint open_counter = 0; | |
980 | ||
981 | nb_trace = lttv_traceset_number(self->ts); | |
982 | ||
983 | for(i = 0 ; i < nb_trace ; i++) { | |
984 | open_counter += lttv_process_trace_update(self->traces[i]); | |
985 | } | |
986 | return open_counter; | |
987 | } | |
2a2fa4f0 | 988 | |
8697a616 | 989 | void lttv_process_traceset_seek_time(LttvTracesetContext *self, LttTime start) |
922581a4 YB |
990 | { |
991 | #ifdef WAIT_FOR_BABELTRACE_FIX_SEEK_ZERO | |
992 | struct bt_iter_pos seekpos; | |
993 | int ret; | |
994 | seekpos.type = BT_SEEK_TIME; | |
995 | seekpos.u.seek_time = ltt_time_to_uint64(start); | |
996 | ret = bt_iter_set_pos(bt_ctf_get_iter(self->iter), &seekpos); | |
997 | if(ret < 0) { | |
998 | printf("Seek by time error: %s,\n",strerror(-ret)); | |
999 | } | |
1000 | #else | |
1001 | #warning Seek time disabled because of babeltrace bugs | |
1002 | #endif | |
1003 | ||
1004 | #ifdef BABEL_CLEANUP | |
90e19f82 | 1005 | guint i, nb_trace; |
2a2fa4f0 | 1006 | |
922581a4 YB |
1007 | |
1008 | ||
90e19f82 | 1009 | LttvTraceContext *tc; |
2a2fa4f0 | 1010 | |
90e19f82 AM |
1011 | //g_tree_destroy(self->pqueue); |
1012 | //self->pqueue = g_tree_new(compare_tracefile); | |
348c6ba8 | 1013 | |
90e19f82 AM |
1014 | nb_trace = lttv_traceset_number(self->ts); |
1015 | for(i = 0 ; i < nb_trace ; i++) { | |
1016 | tc = self->traces[i]; | |
1017 | lttv_process_trace_seek_time(tc, start); | |
1018 | } | |
922581a4 | 1019 | #endif |
dc877563 | 1020 | } |
b445142a | 1021 | |
308711e5 | 1022 | |
8697a616 | 1023 | gboolean lttv_process_traceset_seek_position(LttvTracesetContext *self, |
90e19f82 | 1024 | const LttvTracesetContextPosition *pos) |
308711e5 | 1025 | { |
90e19f82 AM |
1026 | guint i; |
1027 | /* If a position is set, seek the traceset to this position */ | |
1028 | if(ltt_time_compare(pos->timestamp, ltt_time_infinite) != 0) { | |
1029 | ||
1030 | /* Test to see if the traces has been added to the trace set : | |
1031 | * It should NEVER happen. Clear all positions if a new trace comes in. */ | |
1032 | /* FIXME I know this test is not optimal : should keep a number of | |
1033 | * tracefiles variable in the traceset.. eventually */ | |
1034 | guint num_traces = lttv_traceset_number(self->ts); | |
1035 | guint tf_count = 0; | |
1036 | for(i=0; i<num_traces;i++) { | |
1037 | GArray * tracefiles = self->traces[i]->tracefiles; | |
1038 | guint j; | |
1039 | guint num_tracefiles = tracefiles->len; | |
1040 | for(j=0;j<num_tracefiles;j++) | |
1041 | tf_count++; | |
1042 | } | |
1043 | g_assert(tf_count == pos->tfcp->len); | |
1044 | ||
1045 | ||
1046 | //g_tree_destroy(self->pqueue); | |
1047 | //self->pqueue = g_tree_new(compare_tracefile); | |
1048 | ||
1049 | for(i=0;i<pos->tfcp->len; i++) { | |
1050 | LttvTracefileContextPosition *tfcp = | |
1051 | &g_array_index(pos->tfcp, LttvTracefileContextPosition, i); | |
1052 | ||
1053 | g_tree_remove(self->pqueue, tfcp->tfc); | |
1054 | ||
1055 | if(tfcp->used == TRUE) { | |
1056 | if(ltt_tracefile_seek_position(tfcp->tfc->tf, tfcp->event) != 0) | |
1057 | return 1; | |
1058 | tfcp->tfc->timestamp = | |
1059 | ltt_event_time(ltt_tracefile_get_event(tfcp->tfc->tf)); | |
1060 | g_assert(ltt_time_compare(tfcp->tfc->timestamp, | |
1061 | ltt_time_infinite) != 0); | |
1062 | g_tree_insert(self->pqueue, tfcp->tfc, tfcp->tfc); | |
1063 | ||
1064 | } else { | |
1065 | tfcp->tfc->timestamp = ltt_time_infinite; | |
1066 | } | |
1067 | } | |
1068 | } | |
e7f5e89d | 1069 | #ifdef DEBUG |
90e19f82 AM |
1070 | test_time.tv_sec = 0; |
1071 | test_time.tv_nsec = 0; | |
1072 | g_debug("test tree after seek_position"); | |
1073 | g_tree_foreach(self->pqueue, test_tree, NULL); | |
e7f5e89d | 1074 | #endif //DEBUG |
1075 | ||
1076 | ||
1077 | ||
90e19f82 | 1078 | return 0; |
308711e5 | 1079 | } |
1080 | ||
1081 | ||
f57fd845 | 1082 | #if 0 // pmf: temporary disable |
b445142a | 1083 | static LttField * |
eed2ef37 | 1084 | find_field(LttEventType *et, const GQuark field) |
b445142a | 1085 | { |
90e19f82 AM |
1086 | LttField *f; |
1087 | ||
1088 | if(field == 0) return NULL; | |
1089 | ||
1090 | f = ltt_eventtype_field_by_name(et, field); | |
1091 | if (!f) { | |
1092 | g_warning("Cannot find field %s in event %s.%s", g_quark_to_string(field), | |
1093 | g_quark_to_string(ltt_facility_name(ltt_eventtype_facility(et))), | |
1094 | g_quark_to_string(ltt_eventtype_name(et))); | |
1095 | } | |
1096 | ||
1097 | return f; | |
b445142a | 1098 | } |
f57fd845 | 1099 | #endif |
b445142a | 1100 | |
f57fd845 | 1101 | struct marker_info *lttv_trace_hook_get_marker(LttTrace *t, LttvTraceHook *th) |
eed2ef37 | 1102 | { |
90e19f82 | 1103 | return marker_get_info_from_id(th->mdata, th->id); |
eed2ef37 | 1104 | } |
1105 | ||
750eb11a | 1106 | int lttv_trace_find_hook(LttTrace *t, GQuark channel_name, GQuark event_name, |
90e19f82 AM |
1107 | GQuark fields[], LttvHook h, gpointer hook_data, |
1108 | GArray **trace_hooks) | |
b445142a | 1109 | { |
90e19f82 AM |
1110 | struct marker_info *info; |
1111 | guint16 marker_id; | |
1112 | int init_array_size; | |
1113 | GArray *group; | |
1114 | struct marker_data *mdata; | |
1115 | ||
1116 | group = g_datalist_id_get_data(&t->tracefiles, channel_name); | |
1117 | if (unlikely(!group || group->len == 0)) { | |
1118 | g_info("No channel for marker named %s.%s found", | |
1119 | g_quark_to_string(channel_name), g_quark_to_string(event_name)); | |
1120 | return 1; | |
1121 | } | |
1122 | ||
1123 | mdata = g_array_index (group, LttTracefile, 0).mdata; | |
1124 | info = marker_get_info_from_name(mdata, event_name); | |
1125 | if(unlikely(info == NULL)) { | |
1126 | g_info("No marker named %s.%s found", | |
1127 | g_quark_to_string(channel_name), g_quark_to_string(event_name)); | |
1128 | return 1; | |
1129 | } | |
1130 | ||
1131 | init_array_size = (*trace_hooks)->len; | |
1132 | ||
1133 | /* for each marker with the requested name */ | |
1134 | do { | |
1135 | LttvTraceHook tmpth; | |
1136 | int found; | |
1137 | GQuark *f; | |
1138 | struct marker_field *marker_field; | |
1139 | ||
1140 | marker_id = marker_get_id_from_info(mdata, info); | |
1141 | ||
1142 | tmpth.h = h; | |
1143 | tmpth.mdata = mdata; | |
1144 | tmpth.channel = channel_name; | |
1145 | tmpth.id = marker_id; | |
1146 | tmpth.hook_data = hook_data; | |
1147 | tmpth.fields = g_ptr_array_new(); | |
1148 | ||
1149 | /* for each field requested */ | |
1150 | for(f = fields; f && *f != 0; f++) { | |
1151 | found = 0; | |
1152 | for_each_marker_field(marker_field, info) { | |
1153 | if(marker_field->name == *f) { | |
1154 | found = 1; | |
1155 | g_ptr_array_add(tmpth.fields, marker_field); | |
1156 | break; | |
1157 | } | |
1158 | } | |
1159 | if(!found) { | |
1160 | /* Did not find the one of the fields in this instance of the | |
1161 | marker. Print a warning and skip this marker completely. | |
1162 | Still iterate on other markers with same name. */ | |
1163 | g_ptr_array_free(tmpth.fields, TRUE); | |
1164 | g_info("Field %s cannot be found in marker %s.%s", | |
1165 | g_quark_to_string(*f), g_quark_to_string(channel_name), | |
1166 | g_quark_to_string(event_name)); | |
1167 | goto skip_marker; | |
1168 | } | |
1169 | } | |
1170 | /* all fields were found: add the tracehook to the array */ | |
1171 | *trace_hooks = g_array_append_val(*trace_hooks, tmpth); | |
6418800d | 1172 | skip_marker: |
90e19f82 AM |
1173 | info = info->next; |
1174 | } while(info != NULL); | |
1175 | ||
1176 | /* Error if no new trace hook has been added */ | |
1177 | if (init_array_size == (*trace_hooks)->len) { | |
1178 | g_info("No marker of name %s.%s has all requested fields", | |
1179 | g_quark_to_string(channel_name), g_quark_to_string(event_name)); | |
1180 | return 1; | |
1181 | } | |
1182 | return 0; | |
eed2ef37 | 1183 | } |
1184 | ||
032ba5da | 1185 | void lttv_trace_hook_remove_all(GArray **th) |
eed2ef37 | 1186 | { |
90e19f82 AM |
1187 | int i; |
1188 | for(i=0; i<(*th)->len; i++) { | |
1189 | g_ptr_array_free(g_array_index(*th, LttvTraceHook, i).fields, TRUE); | |
1190 | } | |
1191 | if((*th)->len) | |
1192 | *th = g_array_remove_range(*th, 0, (*th)->len); | |
b445142a | 1193 | } |
1194 | ||
90e19f82 AM |
1195 | LttvTracesetContextPosition * |
1196 | lttv_traceset_context_position_new(const LttvTracesetContext *self) | |
5e2c04a2 | 1197 | { |
90e19f82 AM |
1198 | guint num_traces = lttv_traceset_number(self->ts); |
1199 | guint tf_count = 0; | |
1200 | guint i; | |
1201 | ||
1202 | for(i=0; i<num_traces;i++) { | |
1203 | GArray * tracefiles = self->traces[i]->tracefiles; | |
1204 | guint j; | |
1205 | guint num_tracefiles = tracefiles->len; | |
1206 | for(j=0;j<num_tracefiles;j++) | |
1207 | tf_count++; | |
1208 | } | |
1209 | LttvTracesetContextPosition *pos = g_new(LttvTracesetContextPosition, 1); | |
1210 | pos->tfcp = g_array_sized_new(FALSE, TRUE, | |
1211 | sizeof(LttvTracefileContextPosition), | |
1212 | tf_count); | |
1213 | g_array_set_size(pos->tfcp, tf_count); | |
1214 | for(i=0;i<pos->tfcp->len;i++) { | |
1215 | LttvTracefileContextPosition *tfcp = | |
1216 | &g_array_index(pos->tfcp, LttvTracefileContextPosition, i); | |
1217 | tfcp->event = ltt_event_position_new(); | |
1218 | } | |
1219 | ||
1220 | pos->timestamp = ltt_time_infinite; | |
1221 | return pos; | |
5e2c04a2 | 1222 | } |
1223 | ||
3054461a | 1224 | /* Save all positions, the ones with infinite time will have NULL |
1986f254 | 1225 | * ep. */ |
9ba3aaaf | 1226 | /* note : a position must be destroyed when a trace is added/removed from a |
1227 | * traceset */ | |
27304273 | 1228 | void lttv_traceset_context_position_save(const LttvTracesetContext *self, |
90e19f82 | 1229 | LttvTracesetContextPosition *pos) |
27304273 | 1230 | { |
90e19f82 AM |
1231 | guint i; |
1232 | guint num_traces = lttv_traceset_number(self->ts); | |
1233 | guint tf_count = 0; | |
1234 | ||
1235 | pos->timestamp = ltt_time_infinite; | |
1236 | ||
1237 | for(i=0; i<num_traces;i++) { | |
1238 | GArray * tracefiles = self->traces[i]->tracefiles; | |
1239 | guint j; | |
1240 | guint num_tracefiles = tracefiles->len; | |
1241 | ||
1242 | for(j=0;j<num_tracefiles;j++) { | |
1243 | g_assert(tf_count < pos->tfcp->len); | |
1244 | LttvTracefileContext **tfc = &g_array_index(tracefiles, | |
1245 | LttvTracefileContext*, j); | |
1246 | LttvTracefileContextPosition *tfcp = | |
1247 | &g_array_index(pos->tfcp, LttvTracefileContextPosition, tf_count); | |
1248 | ||
1249 | tfcp->tfc = *tfc; | |
1250 | ||
1251 | if(ltt_time_compare((*tfc)->timestamp, ltt_time_infinite) != 0) { | |
1252 | LttEvent *event = ltt_tracefile_get_event((*tfc)->tf); | |
1253 | ltt_event_position(event, tfcp->event); | |
1254 | if(ltt_time_compare((*tfc)->timestamp, pos->timestamp) < 0) | |
1255 | pos->timestamp = (*tfc)->timestamp; | |
1256 | tfcp->used = TRUE; | |
1257 | } else { | |
1258 | tfcp->used = FALSE; | |
1259 | } | |
1260 | ||
1261 | //g_array_append_val(pos->tfc, *tfc); | |
1262 | //g_array_append_val(pos->ep, ep); | |
1263 | tf_count++; | |
1264 | } | |
1265 | ||
1266 | } | |
8697a616 | 1267 | } |
1268 | ||
1269 | void lttv_traceset_context_position_destroy(LttvTracesetContextPosition *pos) | |
1270 | { | |
90e19f82 AM |
1271 | int i; |
1272 | ||
1273 | for(i=0;i<pos->tfcp->len;i++) { | |
1274 | LttvTracefileContextPosition *tfcp = | |
1275 | &g_array_index(pos->tfcp, LttvTracefileContextPosition, i); | |
1276 | g_free(tfcp->event); | |
1277 | tfcp->event = NULL; | |
1278 | tfcp->used = FALSE; | |
1279 | } | |
1280 | g_array_free(pos->tfcp, TRUE); | |
1281 | g_free(pos); | |
8697a616 | 1282 | } |
1283 | ||
5e2c04a2 | 1284 | void lttv_traceset_context_position_copy(LttvTracesetContextPosition *dest, |
90e19f82 | 1285 | const LttvTracesetContextPosition *src) |
5e2c04a2 | 1286 | { |
90e19f82 AM |
1287 | int i; |
1288 | LttvTracefileContextPosition *src_tfcp, *dest_tfcp; | |
1289 | ||
1290 | g_assert(src->tfcp->len == dest->tfcp->len); | |
1291 | ||
1292 | for(i=0;i<src->tfcp->len;i++) { | |
1293 | src_tfcp = | |
1294 | &g_array_index(src->tfcp, LttvTracefileContextPosition, i); | |
1295 | dest_tfcp = | |
1296 | &g_array_index(dest->tfcp, LttvTracefileContextPosition, i); | |
1297 | ||
1298 | dest_tfcp->used = src_tfcp->used; | |
1299 | dest_tfcp->tfc = src_tfcp->tfc; | |
1300 | ||
1301 | if(src_tfcp->used) { | |
1302 | ltt_event_position_copy( | |
1303 | dest_tfcp->event, | |
1304 | src_tfcp->event); | |
1305 | } | |
1306 | } | |
1307 | dest->timestamp = src->timestamp; | |
5e2c04a2 | 1308 | } |
1309 | ||
8697a616 | 1310 | gint lttv_traceset_context_ctx_pos_compare(const LttvTracesetContext *self, |
90e19f82 | 1311 | const LttvTracesetContextPosition *pos) |
8697a616 | 1312 | { |
90e19f82 AM |
1313 | int i; |
1314 | int ret = 0; | |
1315 | ||
1316 | if(pos->tfcp->len == 0) { | |
1317 | if(lttv_traceset_number(self->ts) == 0) return 0; | |
1318 | else return 1; | |
1319 | } | |
1320 | if(lttv_traceset_number(self->ts) == 0) | |
1321 | return -1; | |
1322 | ||
1323 | for(i=0;i<pos->tfcp->len;i++) { | |
1324 | LttvTracefileContextPosition *tfcp = | |
1325 | &g_array_index(pos->tfcp, LttvTracefileContextPosition, i); | |
1326 | ||
1327 | if(tfcp->used == FALSE) { | |
1328 | if(ltt_time_compare(tfcp->tfc->timestamp, ltt_time_infinite) < 0) { | |
1329 | ret = -1; | |
1330 | } | |
1331 | } else { | |
1332 | if(ltt_time_compare(tfcp->tfc->timestamp, ltt_time_infinite) == 0) { | |
1333 | ret = 1; | |
1334 | } else { | |
1335 | LttEvent *event = ltt_tracefile_get_event(tfcp->tfc->tf); | |
1336 | ||
1337 | ret = ltt_event_position_compare((LttEventPosition*)event, | |
1338 | tfcp->event); | |
1339 | } | |
1340 | } | |
1341 | if(ret != 0) return ret; | |
1342 | ||
1343 | } | |
1344 | return 0; | |
8697a616 | 1345 | } |
1346 | ||
1347 | ||
90e19f82 AM |
1348 | gint |
1349 | lttv_traceset_context_pos_pos_compare(const LttvTracesetContextPosition *pos1, | |
1350 | const LttvTracesetContextPosition *pos2) | |
8697a616 | 1351 | { |
90e19f82 AM |
1352 | int i, j; |
1353 | int ret = 0; | |
1354 | ||
1355 | if(ltt_time_compare(pos1->timestamp, ltt_time_infinite) == 0) { | |
1356 | if(ltt_time_compare(pos2->timestamp, ltt_time_infinite) == 0) | |
1357 | return 0; | |
1358 | else | |
1359 | return 1; | |
1360 | } | |
1361 | if(ltt_time_compare(pos2->timestamp, ltt_time_infinite) == 0) | |
1362 | return -1; | |
1363 | ||
1364 | for(i=0;i<pos1->tfcp->len;i++) { | |
1365 | LttvTracefileContextPosition *tfcp1 = | |
1366 | &g_array_index(pos1->tfcp, LttvTracefileContextPosition, i); | |
1367 | ||
1368 | if(tfcp1->used == TRUE) { | |
1369 | for(j=0;j<pos2->tfcp->len;j++) { | |
1370 | LttvTracefileContextPosition *tfcp2 = | |
1371 | &g_array_index(pos2->tfcp, LttvTracefileContextPosition, j); | |
1372 | ||
1373 | if(tfcp1->tfc == tfcp2->tfc) { | |
1374 | if(tfcp2->used == TRUE) | |
1375 | ret = ltt_event_position_compare(tfcp1->event, tfcp2->event); | |
1376 | else | |
1377 | ret = -1; | |
1378 | ||
1379 | if(ret != 0) return ret; | |
1380 | } | |
1381 | } | |
1382 | ||
1383 | } else { | |
1384 | for(j=0;j<pos2->tfcp->len;j++) { | |
1385 | LttvTracefileContextPosition *tfcp2 = | |
1386 | &g_array_index(pos2->tfcp, LttvTracefileContextPosition, j); | |
1387 | ||
1388 | if(tfcp1->tfc == tfcp2->tfc) | |
1389 | if(tfcp2->used == TRUE) ret = 1; | |
1390 | if(ret != 0) return ret; | |
1391 | } | |
1392 | } | |
1393 | } | |
1394 | return 0; | |
8697a616 | 1395 | } |
1396 | ||
1397 | ||
90e19f82 AM |
1398 | LttTime |
1399 | lttv_traceset_context_position_get_time(const LttvTracesetContextPosition *pos) | |
2d262115 | 1400 | { |
90e19f82 | 1401 | return pos->timestamp; |
2d262115 | 1402 | } |
1403 | ||
1404 | ||
90e19f82 AM |
1405 | LttvTracefileContext * |
1406 | lttv_traceset_context_get_current_tfc(LttvTracesetContext *self) | |
2d262115 | 1407 | { |
90e19f82 AM |
1408 | GTree *pqueue = self->pqueue; |
1409 | LttvTracefileContext *tfc = NULL; | |
2d262115 | 1410 | |
90e19f82 | 1411 | g_tree_foreach(pqueue, get_first, &tfc); |
2d262115 | 1412 | |
90e19f82 | 1413 | return tfc; |
2d262115 | 1414 | } |
18c87975 | 1415 | |
2c82c4dc | 1416 | /* lttv_process_traceset_synchronize_tracefiles |
1417 | * | |
1418 | * Use the sync_position field of the trace set context to synchronize each | |
1419 | * tracefile with the previously saved position. | |
1420 | * | |
1421 | * If no previous position has been saved, it simply does nothing. | |
1422 | */ | |
1423 | void lttv_process_traceset_synchronize_tracefiles(LttvTracesetContext *tsc) | |
1424 | { | |
90e19f82 | 1425 | int retval; |
8f318283 | 1426 | |
90e19f82 AM |
1427 | retval= lttv_process_traceset_seek_position(tsc, tsc->sync_position); |
1428 | g_assert_cmpint(retval, ==, 0); | |
2c82c4dc | 1429 | } |
1430 | ||
1431 | ||
1432 | ||
1433 | ||
1434 | void lttv_process_traceset_get_sync_data(LttvTracesetContext *tsc) | |
1435 | { | |
90e19f82 | 1436 | lttv_traceset_context_position_save(tsc, tsc->sync_position); |
2c82c4dc | 1437 | } |
1438 | ||
0bd2f89c | 1439 | struct seek_back_data { |
90e19f82 AM |
1440 | guint first_event; /* Index of the first event in the array : we will always |
1441 | overwrite at this position : this is a circular array. | |
1442 | */ | |
1443 | guint events_found; | |
1444 | guint n; /* number of events requested */ | |
1445 | GPtrArray *array; /* array of LttvTracesetContextPositions pointers */ | |
1446 | LttvFilter *filter1; | |
1447 | LttvFilter *filter2; | |
1448 | LttvFilter *filter3; | |
1449 | gpointer data; | |
1450 | check_handler *check; | |
1451 | gboolean *stop_flag; | |
1452 | guint raw_event_count; | |
0bd2f89c | 1453 | }; |
1454 | ||
1455 | static gint seek_back_event_hook(void *hook_data, void* call_data) | |
1456 | { | |
90e19f82 AM |
1457 | struct seek_back_data *sd = (struct seek_back_data*)hook_data; |
1458 | LttvTracefileContext *tfc = (LttvTracefileContext*)call_data; | |
1459 | LttvTracesetContext *tsc = tfc->t_context->ts_context; | |
1460 | LttvTracesetContextPosition *pos; | |
1461 | ||
1462 | if(sd->check && sd->check(sd->raw_event_count, sd->stop_flag, sd->data)) | |
1463 | return TRUE; | |
1464 | sd->raw_event_count++; | |
1465 | ||
1466 | if(sd->filter1 != NULL && sd->filter1->head != NULL && | |
1467 | !lttv_filter_tree_parse(sd->filter1->head, | |
1468 | ltt_tracefile_get_event(tfc->tf), | |
1469 | tfc->tf, | |
1470 | tfc->t_context->t, | |
1471 | tfc,NULL,NULL)) { | |
1472 | return FALSE; | |
1473 | } | |
1474 | if(sd->filter2 != NULL && sd->filter2->head != NULL && | |
1475 | !lttv_filter_tree_parse(sd->filter2->head, | |
1476 | ltt_tracefile_get_event(tfc->tf), | |
1477 | tfc->tf, | |
1478 | tfc->t_context->t, | |
1479 | tfc,NULL,NULL)) { | |
1480 | return FALSE; | |
1481 | } | |
1482 | if(sd->filter3 != NULL && sd->filter3->head != NULL && | |
1483 | !lttv_filter_tree_parse(sd->filter3->head, | |
1484 | ltt_tracefile_get_event(tfc->tf), | |
1485 | tfc->tf, | |
1486 | tfc->t_context->t, | |
1487 | tfc,NULL,NULL)) { | |
1488 | return FALSE; | |
1489 | } | |
1490 | ||
1491 | pos = (LttvTracesetContextPosition*)g_ptr_array_index (sd->array, | |
1492 | sd->first_event); | |
1493 | ||
1494 | lttv_traceset_context_position_save(tsc, pos); | |
1495 | ||
1496 | if(sd->first_event >= sd->array->len - 1) sd->first_event = 0; | |
1497 | else sd->first_event++; | |
1498 | ||
1499 | sd->events_found = min(sd->n, sd->events_found + 1); | |
1500 | ||
1501 | return FALSE; | |
0bd2f89c | 1502 | } |
1503 | ||
0bd2f89c | 1504 | /* Seek back n events back from the current position. |
1505 | * | |
1506 | * Parameters : | |
1507 | * @self The trace set context | |
1508 | * @n number of events to jump over | |
9ba3aaaf | 1509 | * @first_offset The initial offset value used. |
33e44b82 | 1510 | * never put first_offset at ltt_time_zero. |
1511 | * @time_seeker Function pointer of the function to use to seek time : | |
1512 | * either lttv_process_traceset_seek_time | |
1513 | * or lttv_state_traceset_seek_time_closest | |
1514 | * @filter The filter to call. | |
0bd2f89c | 1515 | * |
1516 | * Return value : the number of events found (might be lower than the number | |
1517 | * requested if beginning of traceset is reached). | |
1518 | * | |
1519 | * The first search will go back first_offset and try to find the last n events | |
1520 | * matching the filter. If there are not enough, it will try to go back from the | |
1521 | * new trace point from first_offset*2, and so on, until beginning of trace or n | |
1522 | * events are found. | |
1523 | * | |
1524 | * Note : this function does not take in account the LttvFilter : use the | |
1525 | * similar function found in state.c instead. | |
1526 | * | |
1527 | * Note2 : the caller must make sure that the LttvTracesetContext does not | |
1528 | * contain any hook, as process_traceset_middle is used in this routine. | |
1529 | */ | |
1530 | guint lttv_process_traceset_seek_n_backward(LttvTracesetContext *self, | |
90e19f82 AM |
1531 | guint n, LttTime first_offset, |
1532 | seek_time_fct time_seeker, | |
1533 | check_handler *check, | |
1534 | gboolean *stop_flag, | |
1535 | LttvFilter *filter1, | |
1536 | LttvFilter *filter2, | |
1537 | LttvFilter *filter3, | |
1538 | gpointer data) | |
0bd2f89c | 1539 | { |
90e19f82 AM |
1540 | if(lttv_traceset_number(self->ts) == 0) return 0; |
1541 | g_assert(ltt_time_compare(first_offset, ltt_time_zero) != 0); | |
1542 | ||
1543 | guint i; | |
1544 | LttvTracesetContextPosition *next_iter_end_pos = | |
1545 | lttv_traceset_context_position_new(self); | |
1546 | LttvTracesetContextPosition *end_pos = | |
1547 | lttv_traceset_context_position_new(self); | |
1548 | LttvTracesetContextPosition *saved_pos = | |
1549 | lttv_traceset_context_position_new(self); | |
1550 | LttTime time; | |
1551 | LttTime asked_time; | |
1552 | LttTime time_offset; | |
1553 | struct seek_back_data sd; | |
1554 | LttvHooks *hooks = lttv_hooks_new(); | |
1555 | int retval; | |
1556 | ||
1557 | sd.first_event = 0; | |
1558 | sd.events_found = 0; | |
1559 | sd.array = g_ptr_array_sized_new(n); | |
1560 | sd.filter1 = filter1; | |
1561 | sd.filter2 = filter2; | |
1562 | sd.filter3 = filter3; | |
1563 | sd.data = data; | |
1564 | sd.n = n; | |
1565 | sd.check = check; | |
1566 | sd.stop_flag = stop_flag; | |
1567 | sd.raw_event_count = 0; | |
1568 | g_ptr_array_set_size(sd.array, n); | |
1569 | for(i=0;i<n;i++) { | |
1570 | g_ptr_array_index (sd.array, i) = lttv_traceset_context_position_new(self); | |
1571 | } | |
33e44b82 | 1572 | |
90e19f82 AM |
1573 | lttv_traceset_context_position_save(self, next_iter_end_pos); |
1574 | lttv_traceset_context_position_save(self, saved_pos); | |
1575 | /* Get the current time from which we will offset */ | |
1576 | time = lttv_traceset_context_position_get_time(next_iter_end_pos); | |
1577 | /* the position saved might be end of traceset... */ | |
1578 | if(ltt_time_compare(time, self->time_span.end_time) > 0) { | |
1579 | time = self->time_span.end_time; | |
1580 | } | |
1581 | time_offset = first_offset; | |
0bd2f89c | 1582 | |
90e19f82 AM |
1583 | lttv_hooks_add(hooks, seek_back_event_hook, &sd, LTTV_PRIO_DEFAULT); |
1584 | ||
1585 | lttv_process_traceset_begin(self, NULL, NULL, NULL, hooks, NULL); | |
1586 | ||
1587 | while(1) { | |
1588 | lttv_traceset_context_position_copy(end_pos, next_iter_end_pos); | |
1589 | ||
1590 | /* We must seek the traceset back to time - time_offset */ | |
1591 | /* this time becomes the new reference time */ | |
1592 | if(ltt_time_compare(time, time_offset) > 0) | |
1593 | time = ltt_time_sub(time, time_offset); | |
1594 | else | |
1595 | time = self->time_span.start_time; | |
1596 | asked_time = time; | |
1597 | ||
1598 | time_seeker(self, time); | |
1599 | lttv_traceset_context_position_save(self, next_iter_end_pos); | |
1600 | /* Resync the time in case of a seek_closest */ | |
1601 | time = lttv_traceset_context_position_get_time(next_iter_end_pos); | |
1602 | if(ltt_time_compare(time, self->time_span.end_time) > 0) { | |
1603 | time = self->time_span.end_time; | |
1604 | } | |
1605 | ||
1606 | /* Process the traceset, calling a hook which adds events | |
1607 | * to the array, overwriting the tail. It changes first_event and | |
1608 | * events_found too. */ | |
1609 | /* We would like to have a clean context here : no other hook than our's */ | |
1610 | ||
1611 | lttv_process_traceset_middle(self, ltt_time_infinite, | |
1612 | G_MAXUINT, end_pos); | |
1613 | ||
1614 | /* stop criteria : - n events found | |
1615 | * - asked_time < beginning of trace */ | |
1616 | if(sd.events_found < n) { | |
1617 | if(sd.first_event > 0) { | |
1618 | /* Save the first position */ | |
1619 | LttvTracesetContextPosition *pos = | |
1620 | (LttvTracesetContextPosition*)g_ptr_array_index (sd.array, 0); | |
1621 | lttv_traceset_context_position_copy(saved_pos, pos); | |
1622 | } | |
1623 | g_assert(n-sd.events_found <= sd.array->len); | |
1624 | /* Change array size to n - events_found */ | |
1625 | for(i=n-sd.events_found;i<sd.array->len;i++) { | |
1626 | LttvTracesetContextPosition *pos = | |
1627 | (LttvTracesetContextPosition*)g_ptr_array_index (sd.array, i); | |
1628 | lttv_traceset_context_position_destroy(pos); | |
1629 | } | |
1630 | g_ptr_array_set_size(sd.array, n-sd.events_found); | |
1631 | sd.first_event = 0; | |
1632 | ||
1633 | /* | |
1634 | * Did not fill our event list and started before the beginning of the | |
1635 | * trace. There is no hope to fill it then. | |
1636 | * It is OK to compare with trace start time here because we explicitely | |
1637 | * seeked by time (not by position), so we cannot miss multiple event | |
1638 | * happening exactly at trace start. | |
1639 | */ | |
1640 | if(ltt_time_compare(asked_time, self->time_span.start_time) == 0) | |
1641 | break; | |
1642 | ||
1643 | } else break; /* Second end criterion : n events found */ | |
1644 | ||
1645 | time_offset = ltt_time_mul(time_offset, BACKWARD_SEEK_MUL); | |
1646 | } | |
1647 | ||
1648 | lttv_traceset_context_position_destroy(end_pos); | |
1649 | lttv_traceset_context_position_destroy(next_iter_end_pos); | |
1650 | ||
1651 | lttv_process_traceset_end(self, NULL, NULL, NULL, hooks, NULL); | |
1652 | ||
1653 | if(sd.events_found >= n) { | |
1654 | /* Seek the traceset to the first event in the circular array */ | |
1655 | LttvTracesetContextPosition *pos = | |
1656 | (LttvTracesetContextPosition*)g_ptr_array_index (sd.array, | |
1657 | sd.first_event); | |
1658 | retval= lttv_process_traceset_seek_position(self, pos); | |
1659 | g_assert_cmpint(retval, ==, 0); | |
1660 | } else { | |
1661 | /* Will seek to the last saved position : in the worst case, it will be the | |
1662 | * original position (if events_found is 0) */ | |
1663 | retval= lttv_process_traceset_seek_position(self, saved_pos); | |
1664 | g_assert_cmpint(retval, ==, 0); | |
1665 | } | |
1666 | ||
1667 | for(i=0;i<sd.array->len;i++) { | |
1668 | LttvTracesetContextPosition *pos = | |
1669 | (LttvTracesetContextPosition*)g_ptr_array_index (sd.array, i); | |
1670 | lttv_traceset_context_position_destroy(pos); | |
1671 | } | |
1672 | g_ptr_array_free(sd.array, TRUE); | |
1673 | ||
1674 | lttv_hooks_destroy(hooks); | |
1675 | ||
1676 | lttv_traceset_context_position_destroy(saved_pos); | |
1677 | ||
1678 | return sd.events_found; | |
0bd2f89c | 1679 | } |
1680 | ||
1681 | ||
1682 | struct seek_forward_data { | |
90e19f82 AM |
1683 | guint event_count; /* event counter */ |
1684 | guint n; /* requested number of events to jump over */ | |
1685 | LttvFilter *filter1; | |
1686 | LttvFilter *filter2; | |
1687 | LttvFilter *filter3; | |
1688 | gpointer data; | |
1689 | check_handler *check; | |
1690 | gboolean *stop_flag; | |
1691 | guint raw_event_count; /* event counter */ | |
0bd2f89c | 1692 | }; |
1693 | ||
1694 | static gint seek_forward_event_hook(void *hook_data, void* call_data) | |
1695 | { | |
90e19f82 AM |
1696 | struct seek_forward_data *sd = (struct seek_forward_data*)hook_data; |
1697 | LttvTracefileContext *tfc = (LttvTracefileContext*)call_data; | |
1698 | ||
1699 | if(sd->check && sd->check(sd->raw_event_count, sd->stop_flag, sd->data)) | |
1700 | return TRUE; | |
1701 | sd->raw_event_count++; | |
1702 | ||
1703 | if(sd->filter1 != NULL && sd->filter1->head != NULL && | |
1704 | !lttv_filter_tree_parse(sd->filter1->head, | |
1705 | ltt_tracefile_get_event(tfc->tf), | |
1706 | tfc->tf, | |
1707 | tfc->t_context->t, | |
1708 | tfc,NULL,NULL)) { | |
1709 | return FALSE; | |
1710 | } | |
1711 | if(sd->filter2 != NULL && sd->filter2->head != NULL && | |
1712 | !lttv_filter_tree_parse(sd->filter2->head, | |
1713 | ltt_tracefile_get_event(tfc->tf), | |
1714 | tfc->tf, | |
1715 | tfc->t_context->t, | |
1716 | tfc,NULL,NULL)) { | |
1717 | return FALSE; | |
1718 | } | |
1719 | if(sd->filter3 != NULL && sd->filter3->head != NULL && | |
1720 | !lttv_filter_tree_parse(sd->filter3->head, | |
1721 | ltt_tracefile_get_event(tfc->tf), | |
1722 | tfc->tf, | |
1723 | tfc->t_context->t, | |
1724 | tfc,NULL,NULL)) { | |
1725 | return FALSE; | |
1726 | } | |
1727 | ||
1728 | sd->event_count++; | |
1729 | if(sd->event_count >= sd->n) | |
1730 | return TRUE; | |
1731 | return FALSE; | |
0bd2f89c | 1732 | } |
1733 | ||
aaecaa99 | 1734 | /* Seek back n events forward from the current position (1 to n) |
1735 | * 0 is ok too, but it will actually do nothing. | |
0bd2f89c | 1736 | * |
1737 | * Parameters : | |
33e44b82 | 1738 | * @self the trace set context |
1739 | * @n number of events to jump over | |
1740 | * @filter filter to call. | |
0bd2f89c | 1741 | * |
1742 | * returns : the number of events jumped over (may be less than requested if end | |
1743 | * of traceset reached) */ | |
1744 | guint lttv_process_traceset_seek_n_forward(LttvTracesetContext *self, | |
90e19f82 AM |
1745 | guint n, |
1746 | check_handler *check, | |
1747 | gboolean *stop_flag, | |
1748 | LttvFilter *filter1, | |
1749 | LttvFilter *filter2, | |
1750 | LttvFilter *filter3, | |
1751 | gpointer data) | |
0bd2f89c | 1752 | { |
90e19f82 AM |
1753 | struct seek_forward_data sd; |
1754 | sd.event_count = 0; | |
1755 | sd.n = n; | |
1756 | sd.filter1 = filter1; | |
1757 | sd.filter2 = filter2; | |
1758 | sd.filter3 = filter3; | |
1759 | sd.data = data; | |
1760 | sd.check = check; | |
1761 | sd.stop_flag = stop_flag; | |
1762 | sd.raw_event_count = 0; | |
1763 | ||
1764 | if(sd.event_count >= sd.n) return sd.event_count; | |
1765 | ||
1766 | LttvHooks *hooks = lttv_hooks_new(); | |
1767 | ||
1768 | lttv_hooks_add(hooks, seek_forward_event_hook, &sd, LTTV_PRIO_DEFAULT); | |
1769 | ||
1770 | lttv_process_traceset_begin(self, NULL, NULL, NULL, hooks, NULL); | |
1771 | ||
1772 | /* it will end on the end of traceset, or the fact that the | |
1773 | * hook returns TRUE. | |
1774 | */ | |
1775 | lttv_process_traceset_middle(self, ltt_time_infinite, | |
1776 | G_MAXUINT, NULL); | |
1777 | ||
1778 | /* Here, our position is either the end of traceset, or the exact position | |
1779 | * after n events : leave it like this. This might be placed on an event that | |
1780 | * will be filtered out, we don't care : all we know is that the following | |
1781 | * event filtered in will be the right one. */ | |
1782 | ||
1783 | lttv_process_traceset_end(self, NULL, NULL, NULL, hooks, NULL); | |
1784 | ||
1785 | lttv_hooks_destroy(hooks); | |
1786 | ||
1787 | return sd.event_count; | |
0bd2f89c | 1788 | } |
1789 | ||
1790 |