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