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> |
d8f124de |
24 | #include <lttv/tracecontext.h> |
ffd54a90 |
25 | #include <ltt/event.h> |
b445142a |
26 | #include <ltt/facility.h> |
a5dcde2f |
27 | #include <ltt/trace.h> |
28 | #include <ltt/type.h> |
33e44b82 |
29 | #include <lttv/filter.h> |
27304273 |
30 | #include <errno.h> |
dc877563 |
31 | |
0bd2f89c |
32 | #define min(a,b) (((a)<(b))?(a):(b)) |
8697a616 |
33 | |
34 | |
27304273 |
35 | gint compare_tracefile(gconstpointer a, gconstpointer b) |
8697a616 |
36 | { |
cf94ff67 |
37 | gint comparison = 0; |
8697a616 |
38 | |
00e74b69 |
39 | const LttvTracefileContext *trace_a = (const LttvTracefileContext *)a; |
00e74b69 |
40 | const LttvTracefileContext *trace_b = (const LttvTracefileContext *)b; |
8697a616 |
41 | |
1d1df11d |
42 | if(likely(trace_a != trace_b)) { |
8fe3c6b6 |
43 | comparison = ltt_time_compare(trace_a->timestamp, trace_b->timestamp); |
1d1df11d |
44 | if(unlikely(comparison == 0)) { |
a855f059 |
45 | if(trace_a->index < trace_b->index) comparison = -1; |
46 | else if(trace_a->index > trace_b->index) comparison = 1; |
47 | else if(trace_a->t_context->index < trace_b->t_context->index) |
48 | comparison = -1; |
49 | else if(trace_a->t_context->index > trace_b->t_context->index) |
50 | comparison = 1; |
51 | } |
cf94ff67 |
52 | } |
cf94ff67 |
53 | return comparison; |
8697a616 |
54 | } |
55 | |
8697a616 |
56 | struct _LttvTracesetContextPosition { |
27304273 |
57 | GArray *ep; /* Array of LttEventPosition */ |
58 | GArray *tfc; /* Array of corresponding |
59 | TracefileContext* */ |
18c87975 |
60 | LttTime timestamp; /* Current time at the saved position */ |
61 | /* If ltt_time_infinite : no position is |
62 | * set, else, a position is set (may be end |
63 | * of trace, with ep->len == 0) */ |
8697a616 |
64 | }; |
65 | |
ffd54a90 |
66 | void lttv_context_init(LttvTracesetContext *self, LttvTraceset *ts) |
dc877563 |
67 | { |
ffd54a90 |
68 | LTTV_TRACESET_CONTEXT_GET_CLASS(self)->init(self, ts); |
dc877563 |
69 | } |
70 | |
71 | |
72 | void lttv_context_fini(LttvTracesetContext *self) |
73 | { |
74 | LTTV_TRACESET_CONTEXT_GET_CLASS(self)->fini(self); |
75 | } |
76 | |
77 | |
78 | LttvTracesetContext * |
79 | lttv_context_new_traceset_context(LttvTracesetContext *self) |
80 | { |
81 | return LTTV_TRACESET_CONTEXT_GET_CLASS(self)->new_traceset_context(self); |
82 | } |
83 | |
84 | |
85 | |
86 | |
87 | LttvTraceContext * |
88 | lttv_context_new_trace_context(LttvTracesetContext *self) |
89 | { |
90 | return LTTV_TRACESET_CONTEXT_GET_CLASS(self)->new_trace_context(self); |
91 | } |
92 | |
93 | |
94 | LttvTracefileContext * |
95 | lttv_context_new_tracefile_context(LttvTracesetContext *self) |
96 | { |
c6bc9cb9 |
97 | return LTTV_TRACESET_CONTEXT_GET_CLASS(self)->new_tracefile_context(self); |
dc877563 |
98 | } |
99 | |
f7afe191 |
100 | /**************************************************************************** |
101 | * lttv_traceset_context_compute_time_span |
102 | * |
8697a616 |
103 | * Keep the time span is sync with on the fly addition and removal of traces |
f7afe191 |
104 | * in a trace set. It must be called each time a trace is added/removed from |
105 | * the traceset. It could be more efficient to call it only once a bunch |
106 | * of traces are loaded, but the calculation is not long, so it's not |
107 | * critical. |
108 | * |
109 | * Author : Xang Xiu Yang |
f7afe191 |
110 | ***************************************************************************/ |
111 | static void lttv_traceset_context_compute_time_span( |
112 | LttvTracesetContext *self, |
33f7a12c |
113 | TimeInterval *time_span) |
f7afe191 |
114 | { |
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 | |
33f7a12c |
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; |
912be9a5 |
126 | |
f7afe191 |
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 | |
133 | if(i==0){ |
33f7a12c |
134 | time_span->start_time = s; |
135 | time_span->end_time = e; |
f7afe191 |
136 | }else{ |
33f7a12c |
137 | if(s.tv_sec < time_span->start_time.tv_sec |
138 | || (s.tv_sec == time_span->start_time.tv_sec |
139 | && s.tv_nsec < time_span->start_time.tv_nsec)) |
140 | time_span->start_time = s; |
141 | if(e.tv_sec > time_span->end_time.tv_sec |
142 | || (e.tv_sec == time_span->end_time.tv_sec |
143 | && e.tv_nsec > time_span->end_time.tv_nsec)) |
144 | time_span->end_time = e; |
f7afe191 |
145 | } |
146 | } |
147 | } |
148 | |
eed2ef37 |
149 | static void init_tracefile_context(LttTracefile *tracefile, |
150 | LttvTraceContext *tc) |
151 | { |
152 | LttvTracefileContext *tfc; |
153 | LttvTracesetContext *tsc = tc->ts_context; |
154 | |
155 | tfc = LTTV_TRACESET_CONTEXT_GET_CLASS(tsc)->new_tracefile_context(tsc); |
156 | |
157 | tfc->index = tc->tracefiles->len; |
158 | tc->tracefiles = g_array_append_val(tc->tracefiles, tfc); |
159 | |
160 | tfc->tf = tracefile; |
161 | |
162 | tfc->t_context = tc; |
163 | tfc->event = lttv_hooks_new(); |
164 | tfc->event_by_id = lttv_hooks_by_id_new(); |
165 | tfc->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
166 | } |
167 | |
dc877563 |
168 | |
169 | static void |
170 | init(LttvTracesetContext *self, LttvTraceset *ts) |
171 | { |
327a4314 |
172 | guint i, nb_trace; |
dc877563 |
173 | |
174 | LttvTraceContext *tc; |
175 | |
3865ea09 |
176 | GData **tracefiles_groups; |
dc877563 |
177 | |
eed2ef37 |
178 | struct compute_tracefile_group_args args; |
308711e5 |
179 | |
dc877563 |
180 | nb_trace = lttv_traceset_number(ts); |
181 | self->ts = ts; |
ffd54a90 |
182 | self->traces = g_new(LttvTraceContext *, nb_trace); |
ffd54a90 |
183 | self->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
308711e5 |
184 | self->ts_a = lttv_traceset_attribute(ts); |
18c87975 |
185 | self->sync_position = lttv_traceset_context_position_new(); |
dc877563 |
186 | for(i = 0 ; i < nb_trace ; i++) { |
ffd54a90 |
187 | tc = LTTV_TRACESET_CONTEXT_GET_CLASS(self)->new_trace_context(self); |
dc877563 |
188 | self->traces[i] = tc; |
189 | |
190 | tc->ts_context = self; |
191 | tc->index = i; |
308711e5 |
192 | tc->vt = lttv_traceset_get(ts, i); |
193 | tc->t = lttv_trace(tc->vt); |
ffd54a90 |
194 | tc->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
308711e5 |
195 | tc->t_a = lttv_trace_attribute(tc->vt); |
3865ea09 |
196 | tc->tracefiles = g_array_sized_new(FALSE, TRUE, |
197 | sizeof(LttvTracefileContext*), 10); |
eed2ef37 |
198 | |
199 | tracefiles_groups = ltt_trace_get_tracefiles_groups(tc->t); |
e45551ac |
200 | if(tracefiles_groups != NULL) { |
201 | args.func = (ForEachTraceFileFunc)init_tracefile_context; |
202 | args.func_args = tc; |
eed2ef37 |
203 | |
e45551ac |
204 | g_datalist_foreach(tracefiles_groups, |
205 | (GDataForeachFunc)compute_tracefile_group, |
206 | &args); |
207 | } |
eed2ef37 |
208 | |
209 | #if 0 |
dc877563 |
210 | nb_control = ltt_trace_control_tracefile_number(tc->t); |
211 | nb_per_cpu = ltt_trace_per_cpu_tracefile_number(tc->t); |
212 | nb_tracefile = nb_control + nb_per_cpu; |
dbb7bb09 |
213 | tc->tracefiles = g_new(LttvTracefileContext *, nb_tracefile); |
dc877563 |
214 | |
215 | for(j = 0 ; j < nb_tracefile ; j++) { |
ffd54a90 |
216 | tfc = LTTV_TRACESET_CONTEXT_GET_CLASS(self)->new_tracefile_context(self); |
dbb7bb09 |
217 | tc->tracefiles[j] = tfc; |
218 | tfc->index = j; |
219 | |
dc877563 |
220 | if(j < nb_control) { |
dc877563 |
221 | tfc->control = TRUE; |
ffd54a90 |
222 | tfc->tf = ltt_trace_control_tracefile_get(tc->t, j); |
dc877563 |
223 | } |
224 | else { |
dc877563 |
225 | tfc->control = FALSE; |
ffd54a90 |
226 | tfc->tf = ltt_trace_per_cpu_tracefile_get(tc->t, j - nb_control); |
dc877563 |
227 | } |
eed2ef37 |
228 | |
dc877563 |
229 | tfc->t_context = tc; |
d3e01c7a |
230 | tfc->e = ltt_event_new(); |
8697a616 |
231 | tfc->event = lttv_hooks_new(); |
232 | tfc->event_by_id = lttv_hooks_by_id_new(); |
ffd54a90 |
233 | tfc->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
dc877563 |
234 | } |
eed2ef37 |
235 | #endif //0 |
236 | |
dc877563 |
237 | } |
2d262115 |
238 | self->pqueue = g_tree_new(compare_tracefile); |
eed2ef37 |
239 | lttv_process_traceset_seek_time(self, ltt_time_zero); |
33f7a12c |
240 | lttv_traceset_context_compute_time_span(self, &self->time_span); |
8697a616 |
241 | |
dc877563 |
242 | } |
243 | |
244 | |
245 | void fini(LttvTracesetContext *self) |
246 | { |
dbb7bb09 |
247 | guint i, j, nb_trace, nb_tracefile; |
dc877563 |
248 | |
249 | LttvTraceContext *tc; |
250 | |
1986f254 |
251 | LttvTracefileContext **tfc; |
dc877563 |
252 | |
ffd54a90 |
253 | LttvTraceset *ts = self->ts; |
dc877563 |
254 | |
8697a616 |
255 | g_tree_destroy(self->pqueue); |
2061e03d |
256 | g_object_unref(self->a); |
18c87975 |
257 | lttv_traceset_context_position_destroy(self->sync_position); |
dc877563 |
258 | |
259 | nb_trace = lttv_traceset_number(ts); |
260 | |
261 | for(i = 0 ; i < nb_trace ; i++) { |
262 | tc = self->traces[i]; |
263 | |
ffd54a90 |
264 | g_object_unref(tc->a); |
dc877563 |
265 | |
eed2ef37 |
266 | nb_tracefile = tc->tracefiles->len; |
dc877563 |
267 | |
268 | for(j = 0 ; j < nb_tracefile ; j++) { |
1986f254 |
269 | tfc = &g_array_index(tc->tracefiles, LttvTracefileContext*, j); |
270 | lttv_hooks_destroy((*tfc)->event); |
271 | lttv_hooks_by_id_destroy((*tfc)->event_by_id); |
272 | g_object_unref((*tfc)->a); |
273 | g_object_unref(*tfc); |
dc877563 |
274 | } |
eed2ef37 |
275 | g_array_free(tc->tracefiles, TRUE); |
dc877563 |
276 | g_object_unref(tc); |
277 | } |
278 | g_free(self->traces); |
279 | } |
280 | |
281 | |
282 | void lttv_traceset_context_add_hooks(LttvTracesetContext *self, |
8697a616 |
283 | LttvHooks *before_traceset, |
dc877563 |
284 | LttvHooks *before_trace, |
ffd54a90 |
285 | LttvHooks *before_tracefile, |
8697a616 |
286 | LttvHooks *event, |
287 | LttvHooksById *event_by_id) |
dc877563 |
288 | { |
289 | LttvTraceset *ts = self->ts; |
290 | |
8697a616 |
291 | guint i, nb_trace; |
dc877563 |
292 | |
293 | LttvTraceContext *tc; |
294 | |
8697a616 |
295 | lttv_hooks_call(before_traceset, self); |
dc877563 |
296 | |
dc877563 |
297 | nb_trace = lttv_traceset_number(ts); |
298 | |
299 | for(i = 0 ; i < nb_trace ; i++) { |
300 | tc = self->traces[i]; |
8697a616 |
301 | lttv_trace_context_add_hooks(tc, |
302 | before_trace, |
303 | before_tracefile, |
304 | event, |
305 | event_by_id); |
dc877563 |
306 | } |
307 | } |
308 | |
309 | |
310 | void lttv_traceset_context_remove_hooks(LttvTracesetContext *self, |
dc877563 |
311 | LttvHooks *after_traceset, |
dc877563 |
312 | LttvHooks *after_trace, |
ffd54a90 |
313 | LttvHooks *after_tracefile, |
8697a616 |
314 | LttvHooks *event, |
315 | LttvHooksById *event_by_id) |
dc877563 |
316 | { |
8697a616 |
317 | |
dc877563 |
318 | LttvTraceset *ts = self->ts; |
319 | |
8697a616 |
320 | guint i, nb_trace; |
dc877563 |
321 | |
322 | LttvTraceContext *tc; |
323 | |
dc877563 |
324 | nb_trace = lttv_traceset_number(ts); |
325 | |
326 | for(i = 0 ; i < nb_trace ; i++) { |
327 | tc = self->traces[i]; |
8697a616 |
328 | lttv_trace_context_remove_hooks(tc, |
329 | after_trace, |
330 | after_tracefile, |
331 | event, |
332 | event_by_id); |
dc877563 |
333 | } |
8697a616 |
334 | |
335 | lttv_hooks_call(after_traceset, self); |
336 | |
337 | |
dc877563 |
338 | } |
339 | |
8697a616 |
340 | void lttv_trace_context_add_hooks(LttvTraceContext *self, |
341 | LttvHooks *before_trace, |
342 | LttvHooks *before_tracefile, |
343 | LttvHooks *event, |
344 | LttvHooksById *event_by_id) |
a8c0f09d |
345 | { |
8697a616 |
346 | guint i, nb_tracefile; |
347 | |
1986f254 |
348 | LttvTracefileContext **tfc; |
8697a616 |
349 | |
350 | lttv_hooks_call(before_trace, self); |
eed2ef37 |
351 | |
352 | nb_tracefile = self->tracefiles->len; |
8697a616 |
353 | |
354 | for(i = 0 ; i < nb_tracefile ; i++) { |
1986f254 |
355 | tfc = &g_array_index(self->tracefiles, LttvTracefileContext*, i); |
356 | lttv_tracefile_context_add_hooks(*tfc, |
8697a616 |
357 | before_tracefile, |
358 | event, |
359 | event_by_id); |
360 | } |
a8c0f09d |
361 | } |
362 | |
8697a616 |
363 | |
364 | |
365 | void lttv_trace_context_remove_hooks(LttvTraceContext *self, |
366 | LttvHooks *after_trace, |
367 | LttvHooks *after_tracefile, |
368 | LttvHooks *event, |
369 | LttvHooksById *event_by_id) |
a8c0f09d |
370 | { |
8697a616 |
371 | guint i, nb_tracefile; |
372 | |
1986f254 |
373 | LttvTracefileContext **tfc; |
8697a616 |
374 | |
eed2ef37 |
375 | nb_tracefile = self->tracefiles->len; |
8697a616 |
376 | |
377 | for(i = 0 ; i < nb_tracefile ; i++) { |
1986f254 |
378 | tfc = &g_array_index(self->tracefiles, LttvTracefileContext*, i); |
379 | lttv_tracefile_context_remove_hooks(*tfc, |
8697a616 |
380 | after_tracefile, |
381 | event, |
382 | event_by_id); |
383 | } |
384 | |
385 | lttv_hooks_call(after_trace, self); |
a8c0f09d |
386 | } |
387 | |
8697a616 |
388 | void lttv_tracefile_context_add_hooks(LttvTracefileContext *self, |
389 | LttvHooks *before_tracefile, |
390 | LttvHooks *event, |
391 | LttvHooksById *event_by_id) |
a8c0f09d |
392 | { |
9d239bd9 |
393 | guint i, index; |
8697a616 |
394 | |
395 | LttvHooks *hook; |
396 | |
397 | lttv_hooks_call(before_tracefile, self); |
398 | lttv_hooks_add_list(self->event, event); |
9d239bd9 |
399 | if(event_by_id != NULL) { |
400 | for(i = 0; i < event_by_id->array->len; i++) { |
401 | index = g_array_index(event_by_id->array, guint, i); |
402 | hook = lttv_hooks_by_id_find(self->event_by_id, index); |
403 | lttv_hooks_add_list(hook, lttv_hooks_by_id_get(event_by_id, index)); |
8697a616 |
404 | } |
9d239bd9 |
405 | } |
a8c0f09d |
406 | } |
407 | |
8697a616 |
408 | void lttv_tracefile_context_remove_hooks(LttvTracefileContext *self, |
409 | LttvHooks *after_tracefile, |
410 | LttvHooks *event, |
411 | LttvHooksById *event_by_id) |
a8c0f09d |
412 | { |
9d239bd9 |
413 | guint i, index; |
8697a616 |
414 | |
415 | LttvHooks *hook; |
416 | |
8697a616 |
417 | lttv_hooks_remove_list(self->event, event); |
9d239bd9 |
418 | if(event_by_id != NULL) { |
419 | for(i = 0; i < event_by_id->array->len; i++) { |
420 | index = g_array_index(event_by_id->array, guint, i); |
421 | hook = lttv_hooks_by_id_get(self->event_by_id, index); |
41a9e0c3 |
422 | if(hook != NULL) |
9d239bd9 |
423 | lttv_hooks_remove_list(hook, lttv_hooks_by_id_get(event_by_id, index)); |
8697a616 |
424 | } |
9d239bd9 |
425 | } |
8697a616 |
426 | |
427 | lttv_hooks_call(after_tracefile, self); |
a8c0f09d |
428 | } |
429 | |
8697a616 |
430 | |
431 | |
a8c0f09d |
432 | void lttv_tracefile_context_add_hooks_by_id(LttvTracefileContext *tfc, |
433 | unsigned i, |
8697a616 |
434 | LttvHooks *event_by_id) |
a8c0f09d |
435 | { |
436 | LttvHooks * h; |
8697a616 |
437 | h = lttv_hooks_by_id_find(tfc->event_by_id, i); |
438 | lttv_hooks_add_list(h, event_by_id); |
a8c0f09d |
439 | } |
440 | |
441 | void lttv_tracefile_context_remove_hooks_by_id(LttvTracefileContext *tfc, |
442 | unsigned i) |
443 | { |
8697a616 |
444 | lttv_hooks_by_id_remove(tfc->event_by_id, i); |
a8c0f09d |
445 | } |
dc877563 |
446 | |
ba576a78 |
447 | static LttvTracesetContext * |
dc877563 |
448 | new_traceset_context(LttvTracesetContext *self) |
449 | { |
ffd54a90 |
450 | return g_object_new(LTTV_TRACESET_CONTEXT_TYPE, NULL); |
dc877563 |
451 | } |
452 | |
453 | |
ba576a78 |
454 | static LttvTraceContext * |
dc877563 |
455 | new_trace_context(LttvTracesetContext *self) |
456 | { |
ffd54a90 |
457 | return g_object_new(LTTV_TRACE_CONTEXT_TYPE, NULL); |
dc877563 |
458 | } |
459 | |
460 | |
ba576a78 |
461 | static LttvTracefileContext * |
dc877563 |
462 | new_tracefile_context(LttvTracesetContext *self) |
463 | { |
ffd54a90 |
464 | return g_object_new(LTTV_TRACEFILE_CONTEXT_TYPE, NULL); |
dc877563 |
465 | } |
466 | |
467 | |
468 | static void |
469 | traceset_context_instance_init (GTypeInstance *instance, gpointer g_class) |
470 | { |
471 | /* Be careful of anything which would not work well with shallow copies */ |
472 | } |
473 | |
474 | |
475 | static void |
476 | traceset_context_finalize (LttvTracesetContext *self) |
477 | { |
b445142a |
478 | G_OBJECT_CLASS(g_type_class_peek(g_type_parent(LTTV_TRACESET_CONTEXT_TYPE))) |
479 | ->finalize(G_OBJECT(self)); |
dc877563 |
480 | } |
481 | |
482 | |
483 | static void |
484 | traceset_context_class_init (LttvTracesetContextClass *klass) |
485 | { |
486 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
487 | |
ffd54a90 |
488 | gobject_class->finalize = (void (*)(GObject *self))traceset_context_finalize; |
dc877563 |
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; |
494 | } |
495 | |
496 | |
497 | GType |
ffd54a90 |
498 | lttv_traceset_context_get_type(void) |
dc877563 |
499 | { |
500 | static GType type = 0; |
501 | if (type == 0) { |
502 | static const GTypeInfo info = { |
ffd54a90 |
503 | sizeof (LttvTracesetContextClass), |
dc877563 |
504 | NULL, /* base_init */ |
505 | NULL, /* base_finalize */ |
ffd54a90 |
506 | (GClassInitFunc) traceset_context_class_init, /* class_init */ |
dc877563 |
507 | NULL, /* class_finalize */ |
508 | NULL, /* class_data */ |
ffd54a90 |
509 | sizeof (LttvTracesetContext), |
dc877563 |
510 | 0, /* n_preallocs */ |
00e74b69 |
511 | (GInstanceInitFunc) traceset_context_instance_init, /* instance_init */ |
512 | NULL /* Value handling */ |
dc877563 |
513 | }; |
514 | |
ffd54a90 |
515 | type = g_type_register_static (G_TYPE_OBJECT, "LttvTracesetContextType", |
dc877563 |
516 | &info, 0); |
517 | } |
518 | return type; |
519 | } |
520 | |
521 | |
522 | static void |
523 | trace_context_instance_init (GTypeInstance *instance, gpointer g_class) |
524 | { |
525 | /* Be careful of anything which would not work well with shallow copies */ |
526 | } |
527 | |
528 | |
529 | static void |
530 | trace_context_finalize (LttvTraceContext *self) |
531 | { |
b445142a |
532 | G_OBJECT_CLASS(g_type_class_peek(g_type_parent(LTTV_TRACE_CONTEXT_TYPE)))-> |
533 | finalize(G_OBJECT(self)); |
dc877563 |
534 | } |
535 | |
536 | |
537 | static void |
538 | trace_context_class_init (LttvTraceContextClass *klass) |
539 | { |
540 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
541 | |
ffd54a90 |
542 | gobject_class->finalize = (void (*)(GObject *self)) trace_context_finalize; |
dc877563 |
543 | } |
544 | |
545 | |
546 | GType |
ffd54a90 |
547 | lttv_trace_context_get_type(void) |
dc877563 |
548 | { |
549 | static GType type = 0; |
550 | if (type == 0) { |
551 | static const GTypeInfo info = { |
ffd54a90 |
552 | sizeof (LttvTraceContextClass), |
dc877563 |
553 | NULL, /* base_init */ |
554 | NULL, /* base_finalize */ |
ffd54a90 |
555 | (GClassInitFunc) trace_context_class_init, /* class_init */ |
dc877563 |
556 | NULL, /* class_finalize */ |
557 | NULL, /* class_data */ |
c6bc9cb9 |
558 | sizeof (LttvTraceContext), |
dc877563 |
559 | 0, /* n_preallocs */ |
00e74b69 |
560 | (GInstanceInitFunc) trace_context_instance_init, /* instance_init */ |
561 | NULL /* Value handling */ |
dc877563 |
562 | }; |
563 | |
ffd54a90 |
564 | type = g_type_register_static (G_TYPE_OBJECT, "LttvTraceContextType", |
dc877563 |
565 | &info, 0); |
566 | } |
567 | return type; |
568 | } |
569 | |
570 | |
571 | static void |
572 | tracefile_context_instance_init (GTypeInstance *instance, gpointer g_class) |
573 | { |
574 | /* Be careful of anything which would not work well with shallow copies */ |
575 | } |
576 | |
577 | |
578 | static void |
579 | tracefile_context_finalize (LttvTracefileContext *self) |
580 | { |
b445142a |
581 | G_OBJECT_CLASS(g_type_class_peek(g_type_parent(LTTV_TRACEFILE_CONTEXT_TYPE))) |
582 | ->finalize(G_OBJECT(self)); |
dc877563 |
583 | } |
584 | |
585 | |
586 | static void |
587 | tracefile_context_class_init (LttvTracefileContextClass *klass) |
588 | { |
589 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
590 | |
ffd54a90 |
591 | gobject_class->finalize = (void (*)(GObject *self))tracefile_context_finalize; |
592 | } |
593 | |
594 | |
595 | GType |
596 | lttv_tracefile_context_get_type(void) |
597 | { |
598 | static GType type = 0; |
599 | if (type == 0) { |
600 | static const GTypeInfo info = { |
601 | sizeof (LttvTracefileContextClass), |
602 | NULL, /* base_init */ |
603 | NULL, /* base_finalize */ |
604 | (GClassInitFunc) tracefile_context_class_init, /* class_init */ |
605 | NULL, /* class_finalize */ |
606 | NULL, /* class_data */ |
607 | sizeof (LttvTracefileContext), |
608 | 0, /* n_preallocs */ |
00e74b69 |
609 | (GInstanceInitFunc) tracefile_context_instance_init, /* instance_init */ |
610 | NULL /* Value handling */ |
ffd54a90 |
611 | }; |
612 | |
613 | type = g_type_register_static (G_TYPE_OBJECT, "LttvTracefileContextType", |
614 | &info, 0); |
615 | } |
616 | return type; |
dc877563 |
617 | } |
618 | |
619 | |
dc877563 |
620 | |
6843100a |
621 | static gboolean get_first(gpointer key, gpointer value, gpointer user_data) { |
77199e93 |
622 | g_assert(key == value); |
dc877563 |
623 | *((LttvTracefileContext **)user_data) = (LttvTracefileContext *)value; |
624 | return TRUE; |
625 | } |
626 | |
e7f5e89d |
627 | #ifdef DEBUG |
628 | // Test to see if pqueue is traversed in the right order. |
629 | static LttTime test_time; |
630 | |
698e81c2 |
631 | static gboolean test_tree(gpointer key, gpointer value, gpointer user_data) { |
632 | |
77199e93 |
633 | LttvTracefileContext *tfc = (LttvTracefileContext *)key; |
634 | |
635 | g_debug("Tracefile name %s, time %lu.%lu, tfi %u, ti %u", |
636 | g_quark_to_string(ltt_tracefile_name(tfc->tf)), |
637 | tfc->timestamp.tv_sec, tfc->timestamp.tv_nsec, |
638 | tfc->index, tfc->t_context->index); |
e7f5e89d |
639 | |
640 | if(user_data != NULL) { |
641 | if(((LttvTracefileContext *)user_data) == (LttvTracefileContext *)value) { |
642 | g_assert(compare_tracefile(user_data, value) == 0); |
643 | } else |
644 | g_assert(compare_tracefile(user_data, value) != 0); |
645 | } |
646 | g_assert(ltt_time_compare(test_time, tfc->timestamp) <= 0); |
647 | test_time.tv_sec = tfc->timestamp.tv_sec; |
648 | test_time.tv_nsec = tfc->timestamp.tv_nsec; |
77199e93 |
649 | |
77199e93 |
650 | |
651 | //g_assert(((LttvTracefileContext *)user_data) != (LttvTracefileContext *)value); |
698e81c2 |
652 | return FALSE; |
653 | } |
e7f5e89d |
654 | #endif //DEBUG |
698e81c2 |
655 | |
656 | |
dc877563 |
657 | |
8697a616 |
658 | void lttv_process_traceset_begin(LttvTracesetContext *self, |
659 | LttvHooks *before_traceset, |
660 | LttvHooks *before_trace, |
661 | LttvHooks *before_tracefile, |
662 | LttvHooks *event, |
663 | LttvHooksById *event_by_id) |
664 | { |
dc877563 |
665 | |
8697a616 |
666 | /* simply add hooks in context. _before hooks are called by add_hooks. */ |
667 | /* It calls all before_traceset, before_trace, and before_tracefile hooks. */ |
668 | lttv_traceset_context_add_hooks(self, |
669 | before_traceset, |
670 | before_trace, |
671 | before_tracefile, |
672 | event, |
673 | event_by_id); |
674 | |
2a2fa4f0 |
675 | } |
676 | |
36d36c9f |
677 | enum read_state { LAST_NONE, LAST_OK, LAST_EMPTY }; |
678 | |
8697a616 |
679 | /* Note : a _middle must be preceded from a _seek or another middle */ |
680 | guint lttv_process_traceset_middle(LttvTracesetContext *self, |
681 | LttTime end, |
b8eccacd |
682 | guint nb_events, |
8697a616 |
683 | const LttvTracesetContextPosition *end_position) |
2a2fa4f0 |
684 | { |
685 | GTree *pqueue = self->pqueue; |
686 | |
698e81c2 |
687 | guint fac_id, ev_id, id; |
2a2fa4f0 |
688 | |
2a2fa4f0 |
689 | LttvTracefileContext *tfc; |
690 | |
eed2ef37 |
691 | LttEvent *e; |
692 | |
2a2fa4f0 |
693 | unsigned count = 0; |
694 | |
36d36c9f |
695 | guint read_ret; |
696 | |
697 | enum read_state last_read_state = LAST_NONE; |
698e81c2 |
698 | |
a54f091a |
699 | gboolean last_ret = FALSE; /* return value of the last hook list called */ |
700 | |
dc877563 |
701 | /* Get the next event from the pqueue, call its hooks, |
702 | reinsert in the pqueue the following event from the same tracefile |
703 | unless the tracefile is finished or the event is later than the |
8697a616 |
704 | end time. */ |
dc877563 |
705 | |
ffd54a90 |
706 | while(TRUE) { |
dc877563 |
707 | tfc = NULL; |
708 | g_tree_foreach(pqueue, get_first, &tfc); |
33f7a12c |
709 | /* End of traceset : tfc is NULL */ |
1d1df11d |
710 | if(unlikely(tfc == NULL)) |
a43d67ba |
711 | { |
a43d67ba |
712 | return count; |
713 | } |
dc877563 |
714 | |
8697a616 |
715 | /* Have we reached : |
716 | * - the maximum number of events specified? |
717 | * - the end position ? |
718 | * - the end time ? |
719 | * then the read is finished. We leave the queue in the same state and |
720 | * break the loop. |
721 | */ |
722 | |
1d1df11d |
723 | if(unlikely(last_ret == TRUE || |
d052ffc3 |
724 | ((count >= nb_events) && (nb_events != G_MAXULONG)) || |
8b0bbe19 |
725 | (end_position!=NULL&<tv_traceset_context_ctx_pos_compare(self, |
726 | end_position) == 0)|| |
1d1df11d |
727 | ltt_time_compare(end, tfc->timestamp) <= 0)) |
a43d67ba |
728 | { |
a43d67ba |
729 | return count; |
730 | } |
36d36c9f |
731 | |
308711e5 |
732 | /* Get the tracefile with an event for the smallest time found. If two |
733 | or more tracefiles have events for the same time, hope that lookup |
734 | and remove are consistent. */ |
1986f254 |
735 | |
736 | #ifdef DEBUG |
e7f5e89d |
737 | test_time.tv_sec = 0; |
738 | test_time.tv_nsec = 0; |
77199e93 |
739 | g_debug("test tree before remove"); |
740 | g_tree_foreach(pqueue, test_tree, tfc); |
1986f254 |
741 | #endif //DEBUG |
f95bc830 |
742 | g_tree_remove(pqueue, tfc); |
698e81c2 |
743 | |
1986f254 |
744 | #ifdef DEBUG |
e7f5e89d |
745 | test_time.tv_sec = 0; |
746 | test_time.tv_nsec = 0; |
77199e93 |
747 | g_debug("test tree after remove"); |
698e81c2 |
748 | g_tree_foreach(pqueue, test_tree, tfc); |
1986f254 |
749 | #endif //DEBUG |
77199e93 |
750 | |
eed2ef37 |
751 | e = ltt_tracefile_get_event(tfc->tf); |
dc877563 |
752 | |
36d36c9f |
753 | if(last_read_state != LAST_EMPTY) { |
754 | /* Only call hooks if the last read has given an event or if we are at the |
755 | * first pass (not if last read returned end of tracefile) */ |
756 | count++; |
757 | |
758 | fac_id = ltt_event_facility_id(e); |
759 | ev_id = ltt_event_eventtype_id(e); |
760 | id = GET_HOOK_ID(fac_id, ev_id); |
761 | last_ret = lttv_hooks_call_merge(tfc->event, tfc, |
762 | lttv_hooks_by_id_get(tfc->event_by_id, id), tfc); |
763 | } |
764 | |
698e81c2 |
765 | read_ret = ltt_tracefile_read(tfc->tf); |
766 | |
767 | if(likely(!read_ret)) { |
3054461a |
768 | //g_debug("An event is ready"); |
eed2ef37 |
769 | tfc->timestamp = ltt_event_time(e); |
e7f5e89d |
770 | g_assert(ltt_time_compare(tfc->timestamp, ltt_time_infinite) != 0); |
33f7a12c |
771 | g_tree_insert(pqueue, tfc, tfc); |
e7f5e89d |
772 | #ifdef DEBUG |
773 | test_time.tv_sec = 0; |
774 | test_time.tv_nsec = 0; |
775 | g_debug("test tree after event ready"); |
776 | g_tree_foreach(pqueue, test_tree, NULL); |
777 | #endif //DEBUG |
778 | |
36d36c9f |
779 | last_read_state = LAST_OK; |
698e81c2 |
780 | } else { |
1986f254 |
781 | tfc->timestamp = ltt_time_infinite; |
782 | |
36d36c9f |
783 | if(read_ret == ERANGE) { |
784 | last_read_state = LAST_EMPTY; |
698e81c2 |
785 | g_debug("End of trace"); |
36d36c9f |
786 | } else |
698e81c2 |
787 | g_error("Error happened in lttv_process_traceset_middle"); |
dc877563 |
788 | } |
789 | } |
2a2fa4f0 |
790 | } |
791 | |
792 | |
8697a616 |
793 | void lttv_process_traceset_end(LttvTracesetContext *self, |
794 | LttvHooks *after_traceset, |
795 | LttvHooks *after_trace, |
796 | LttvHooks *after_tracefile, |
797 | LttvHooks *event, |
798 | LttvHooksById *event_by_id) |
2a2fa4f0 |
799 | { |
8697a616 |
800 | /* Remove hooks from context. _after hooks are called by remove_hooks. */ |
801 | /* It calls all after_traceset, after_trace, and after_tracefile hooks. */ |
802 | lttv_traceset_context_remove_hooks(self, |
803 | after_traceset, |
804 | after_trace, |
805 | after_tracefile, |
806 | event, |
807 | event_by_id); |
808 | } |
2a2fa4f0 |
809 | |
27304273 |
810 | /* Subtile modification : |
811 | * if tracefile has no event at or after the time requested, it is not put in |
348c6ba8 |
812 | * the queue, as the next read would fail. |
813 | * |
814 | * Don't forget to empty the traceset pqueue before calling this. |
815 | */ |
8697a616 |
816 | void lttv_process_trace_seek_time(LttvTraceContext *self, LttTime start) |
817 | { |
818 | guint i, nb_tracefile; |
2a2fa4f0 |
819 | |
eed2ef37 |
820 | gint ret; |
821 | |
1986f254 |
822 | LttvTracefileContext **tfc; |
2a2fa4f0 |
823 | |
eed2ef37 |
824 | nb_tracefile = self->tracefiles->len; |
dc877563 |
825 | |
e7f5e89d |
826 | GTree *pqueue = self->ts_context->pqueue; |
827 | |
8697a616 |
828 | for(i = 0 ; i < nb_tracefile ; i++) { |
1986f254 |
829 | tfc = &g_array_index(self->tracefiles, LttvTracefileContext*, i); |
77199e93 |
830 | |
e7f5e89d |
831 | //g_tree_remove(pqueue, *tfc); |
77199e93 |
832 | |
1986f254 |
833 | ret = ltt_tracefile_seek_time((*tfc)->tf, start); |
27304273 |
834 | if(ret == EPERM) g_error("error in lttv_process_trace_seek_time seek"); |
27304273 |
835 | |
836 | if(ret == 0) { /* not ERANGE especially */ |
1986f254 |
837 | (*tfc)->timestamp = ltt_event_time(ltt_tracefile_get_event((*tfc)->tf)); |
e7f5e89d |
838 | g_assert(ltt_time_compare((*tfc)->timestamp, ltt_time_infinite) != 0); |
1986f254 |
839 | g_tree_insert(pqueue, (*tfc), (*tfc)); |
840 | } else { |
841 | (*tfc)->timestamp = ltt_time_infinite; |
27304273 |
842 | } |
8697a616 |
843 | } |
e7f5e89d |
844 | #ifdef DEBUG |
845 | test_time.tv_sec = 0; |
846 | test_time.tv_nsec = 0; |
847 | g_debug("test tree after seek_time"); |
848 | g_tree_foreach(pqueue, test_tree, NULL); |
849 | #endif //DEBUG |
850 | |
851 | |
852 | |
8697a616 |
853 | } |
dc877563 |
854 | |
2a2fa4f0 |
855 | |
8697a616 |
856 | void lttv_process_traceset_seek_time(LttvTracesetContext *self, LttTime start) |
857 | { |
858 | guint i, nb_trace; |
2a2fa4f0 |
859 | |
8697a616 |
860 | LttvTraceContext *tc; |
2a2fa4f0 |
861 | |
348c6ba8 |
862 | g_tree_destroy(self->pqueue); |
863 | self->pqueue = g_tree_new(compare_tracefile); |
864 | |
8697a616 |
865 | nb_trace = lttv_traceset_number(self->ts); |
866 | for(i = 0 ; i < nb_trace ; i++) { |
867 | tc = self->traces[i]; |
868 | lttv_process_trace_seek_time(tc, start); |
869 | } |
dc877563 |
870 | } |
b445142a |
871 | |
308711e5 |
872 | |
8697a616 |
873 | gboolean lttv_process_traceset_seek_position(LttvTracesetContext *self, |
874 | const LttvTracesetContextPosition *pos) |
308711e5 |
875 | { |
27304273 |
876 | guint i; |
8697a616 |
877 | |
18c87975 |
878 | /* If a position is set, seek the traceset to this position */ |
879 | if(ltt_time_compare(pos->timestamp, ltt_time_infinite) != 0) { |
880 | g_tree_destroy(self->pqueue); |
881 | self->pqueue = g_tree_new(compare_tracefile); |
882 | |
883 | for(i=0;i<pos->ep->len; i++) { |
884 | LttEventPosition **ep = &g_array_index(pos->ep, LttEventPosition*, i); |
885 | LttvTracefileContext **tfc = |
886 | &g_array_index(pos->tfc, LttvTracefileContext*, i); |
887 | if(*ep != NULL) { |
888 | if(ltt_tracefile_seek_position((*tfc)->tf, *ep) != 0) |
889 | return 1; |
890 | (*tfc)->timestamp = ltt_event_time(ltt_tracefile_get_event((*tfc)->tf)); |
e7f5e89d |
891 | g_assert(ltt_time_compare((*tfc)->timestamp, ltt_time_infinite) != 0); |
18c87975 |
892 | g_tree_insert(self->pqueue, (*tfc), (*tfc)); |
893 | } else { |
894 | (*tfc)->timestamp = ltt_time_infinite; |
895 | } |
1986f254 |
896 | } |
308711e5 |
897 | } |
e7f5e89d |
898 | #ifdef DEBUG |
899 | test_time.tv_sec = 0; |
900 | test_time.tv_nsec = 0; |
901 | g_debug("test tree after seek_position"); |
902 | g_tree_foreach(self->pqueue, test_tree, NULL); |
903 | #endif //DEBUG |
904 | |
905 | |
906 | |
2c82c4dc |
907 | return 0; |
308711e5 |
908 | } |
909 | |
910 | |
8697a616 |
911 | |
b445142a |
912 | static LttField * |
eed2ef37 |
913 | find_field(LttEventType *et, const GQuark field) |
b445142a |
914 | { |
915 | LttType *t; |
916 | |
917 | LttField *f; |
918 | |
919 | guint i, nb; |
920 | |
eed2ef37 |
921 | GQuark name; |
b445142a |
922 | |
eed2ef37 |
923 | /* Field is unset */ |
924 | if(field == 0) return NULL; |
925 | |
b445142a |
926 | f = ltt_eventtype_field(et); |
927 | t = ltt_eventtype_type(et); |
928 | g_assert(ltt_type_class(t) == LTT_STRUCT); |
929 | nb = ltt_type_member_number(t); |
930 | for(i = 0 ; i < nb ; i++) { |
931 | ltt_type_member_type(t, i, &name); |
eed2ef37 |
932 | if(name == field) break; |
b445142a |
933 | } |
934 | g_assert(i < nb); |
935 | return ltt_field_member(f, i); |
936 | } |
937 | |
eed2ef37 |
938 | LttvTraceHookByFacility *lttv_trace_hook_get_fac(LttvTraceHook *th, |
939 | guint facility_id) |
940 | { |
941 | return &g_array_index(th->fac_index, LttvTraceHookByFacility, facility_id); |
942 | } |
943 | |
944 | /* Get the first facility corresponding to the name. As the types must be |
945 | * compatible, it is relevant to use the field name and sizes of the first |
946 | * facility to create data structures and assume the data will be compatible |
947 | * thorough the trace */ |
948 | LttvTraceHookByFacility *lttv_trace_hook_get_first(LttvTraceHook *th) |
949 | { |
950 | g_assert(th->fac_list->len > 0); |
951 | return g_array_index(th->fac_list, LttvTraceHookByFacility*, 0); |
952 | } |
953 | |
b445142a |
954 | |
eed2ef37 |
955 | /* Returns 0 on success, -1 if fails. */ |
956 | gint |
957 | lttv_trace_find_hook(LttTrace *t, GQuark facility, GQuark event, |
2c82c4dc |
958 | GQuark field1, GQuark field2, GQuark field3, LttvHook h, gpointer hook_data, |
959 | LttvTraceHook *th) |
b445142a |
960 | { |
961 | LttFacility *f; |
962 | |
eed2ef37 |
963 | LttEventType *et, *first_et; |
964 | |
965 | GArray *facilities; |
966 | |
d052ffc3 |
967 | guint i, fac_id, ev_id; |
b445142a |
968 | |
eed2ef37 |
969 | LttvTraceHookByFacility *thf, *first_thf; |
b445142a |
970 | |
eed2ef37 |
971 | facilities = ltt_trace_facility_get_by_name(t, facility); |
021eeb41 |
972 | |
eed2ef37 |
973 | if(unlikely(facilities == NULL)) goto facility_error; |
974 | |
975 | th->fac_index = g_array_sized_new(FALSE, TRUE, |
976 | sizeof(LttvTraceHookByFacility), |
977 | NUM_FACILITIES); |
978 | th->fac_index = g_array_set_size(th->fac_index, NUM_FACILITIES); |
b445142a |
979 | |
eed2ef37 |
980 | th->fac_list = g_array_sized_new(FALSE, TRUE, |
981 | sizeof(LttvTraceHookByFacility*), |
982 | facilities->len); |
983 | th->fac_list = g_array_set_size(th->fac_list, facilities->len); |
984 | |
985 | fac_id = g_array_index(facilities, guint, 0); |
986 | f = ltt_trace_get_facility_by_num(t, fac_id); |
987 | |
cb03932a |
988 | et = ltt_facility_eventtype_get_by_name(f, event); |
eed2ef37 |
989 | if(unlikely(et == NULL)) goto event_error; |
990 | |
991 | thf = &g_array_index(th->fac_index, LttvTraceHookByFacility, fac_id); |
1986f254 |
992 | g_array_index(th->fac_list, LttvTraceHookByFacility*, 0) = thf; |
9d239bd9 |
993 | |
d052ffc3 |
994 | ev_id = ltt_eventtype_id(et); |
995 | |
eed2ef37 |
996 | thf->h = h; |
d052ffc3 |
997 | thf->id = GET_HOOK_ID(fac_id, ev_id); |
eed2ef37 |
998 | thf->f1 = find_field(et, field1); |
999 | thf->f2 = find_field(et, field2); |
1000 | thf->f3 = find_field(et, field3); |
2c82c4dc |
1001 | thf->hook_data = hook_data; |
eed2ef37 |
1002 | |
1003 | first_thf = thf; |
826f1ab2 |
1004 | first_et = et; |
eed2ef37 |
1005 | |
1006 | /* Check for type compatibility too */ |
1007 | for(i=1;i<facilities->len;i++) { |
1008 | fac_id = g_array_index(facilities, guint, i); |
1009 | f = ltt_trace_get_facility_by_num(t, fac_id); |
1010 | |
f4b88a7d |
1011 | et = ltt_facility_eventtype_get_by_name(f, event); |
eed2ef37 |
1012 | if(unlikely(et == NULL)) goto event_error; |
1013 | |
1014 | thf = &g_array_index(th->fac_index, LttvTraceHookByFacility, fac_id); |
1986f254 |
1015 | g_array_index(th->fac_list, LttvTraceHookByFacility*, i) = thf; |
d052ffc3 |
1016 | ev_id = ltt_eventtype_id(et); |
eed2ef37 |
1017 | thf->h = h; |
d052ffc3 |
1018 | thf->id = GET_HOOK_ID(fac_id, ev_id); |
eed2ef37 |
1019 | thf->f1 = find_field(et, field1); |
1020 | if(check_fields_compatibility(first_et, et, |
1021 | first_thf->f1, thf->f1)) |
1022 | goto type_error; |
1023 | |
1024 | thf->f2 = find_field(et, field2); |
1025 | if(check_fields_compatibility(first_et, et, |
1026 | first_thf->f2, thf->f2)) |
1027 | goto type_error; |
1028 | |
1029 | thf->f3 = find_field(et, field3); |
1030 | if(check_fields_compatibility(first_et, et, |
1031 | first_thf->f3, thf->f3)) |
1032 | goto type_error; |
2c82c4dc |
1033 | thf->hook_data = hook_data; |
eed2ef37 |
1034 | } |
1035 | |
1036 | return 0; |
1037 | |
1038 | type_error: |
1039 | goto free; |
1040 | event_error: |
f4b88a7d |
1041 | g_error("Event type does not exist for event %s", |
1042 | g_quark_to_string(event)); |
eed2ef37 |
1043 | goto free; |
1044 | facility_error: |
1045 | g_error("No %s facility", g_quark_to_string(facility)); |
1046 | goto free; |
1047 | free: |
1048 | g_array_free(th->fac_index, TRUE); |
1049 | g_array_free(th->fac_list, TRUE); |
1050 | th->fac_index = NULL; |
1051 | th->fac_list = NULL; |
1052 | return -1; |
1053 | } |
1054 | |
1055 | void lttv_trace_hook_destroy(LttvTraceHook *th) |
1056 | { |
1057 | g_array_free(th->fac_index, TRUE); |
1058 | g_array_free(th->fac_list, TRUE); |
b445142a |
1059 | } |
1060 | |
1061 | |
8b0bbe19 |
1062 | LttvTracesetContextPosition *lttv_traceset_context_position_new() |
5e2c04a2 |
1063 | { |
27304273 |
1064 | LttvTracesetContextPosition *pos = g_new(LttvTracesetContextPosition,1); |
1065 | pos->ep = g_array_sized_new(FALSE, TRUE, sizeof(LttEventPosition*), |
1066 | 10); |
1067 | pos->tfc = g_array_sized_new(FALSE, TRUE, sizeof(LttvTracefileContext*), |
1068 | 10); |
1069 | pos->timestamp = ltt_time_infinite; |
1070 | return pos; |
5e2c04a2 |
1071 | } |
1072 | |
3054461a |
1073 | /* Save all positions, the ones with infinite time will have NULL |
1986f254 |
1074 | * ep. */ |
27304273 |
1075 | void lttv_traceset_context_position_save(const LttvTracesetContext *self, |
1076 | LttvTracesetContextPosition *pos) |
1077 | { |
1986f254 |
1078 | guint i; |
1079 | guint num_traces = lttv_traceset_number(self->ts); |
728d0c3e |
1080 | |
33e44b82 |
1081 | for(i=0;i<pos->ep->len;i++){ |
1082 | LttEventPosition *ep = g_array_index(pos->ep, LttEventPosition*, i); |
1083 | if(ep != NULL) g_free(ep); |
1084 | } |
1085 | |
728d0c3e |
1086 | pos->tfc = g_array_set_size(pos->tfc, 0); |
1087 | pos->ep = g_array_set_size(pos->ep, 0); |
0bd2f89c |
1088 | |
1089 | pos->timestamp = ltt_time_infinite; |
728d0c3e |
1090 | |
1986f254 |
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 | LttvTracefileContext **tfc = &g_array_index(tracefiles, |
1098 | LttvTracefileContext*, j); |
1099 | |
1100 | LttEvent *event = ltt_tracefile_get_event((*tfc)->tf); |
1101 | LttEventPosition *ep; |
1102 | |
1103 | if(ltt_time_compare((*tfc)->timestamp, ltt_time_infinite) != 0) { |
1104 | ep = ltt_event_position_new(); |
1105 | ltt_event_position(event, ep); |
1106 | if(ltt_time_compare((*tfc)->timestamp, pos->timestamp) < 0) |
1107 | pos->timestamp = (*tfc)->timestamp; |
1108 | } else { |
1109 | ep = NULL; |
1110 | } |
1111 | g_array_append_val(pos->tfc, *tfc); |
1112 | g_array_append_val(pos->ep, ep); |
1113 | } |
1114 | |
1115 | } |
8697a616 |
1116 | } |
1117 | |
1118 | void lttv_traceset_context_position_destroy(LttvTracesetContextPosition *pos) |
1119 | { |
27304273 |
1120 | int i; |
1986f254 |
1121 | LttEventPosition **ep; |
1122 | |
1123 | for(i=0;i<pos->ep->len;i++) { |
1124 | ep = &g_array_index(pos->ep, LttEventPosition*, i); |
1125 | if(*ep != NULL) |
1126 | g_free(*ep); |
1127 | } |
27304273 |
1128 | g_array_free(pos->ep, TRUE); |
1129 | g_array_free(pos->tfc, TRUE); |
1130 | g_free(pos); |
8697a616 |
1131 | } |
1132 | |
5e2c04a2 |
1133 | void lttv_traceset_context_position_copy(LttvTracesetContextPosition *dest, |
1134 | const LttvTracesetContextPosition *src) |
1135 | { |
27304273 |
1136 | int i; |
1986f254 |
1137 | LttEventPosition **src_ep, **dest_ep; |
5e2c04a2 |
1138 | |
728d0c3e |
1139 | dest->ep = g_array_set_size(dest->ep, src->ep->len); |
1140 | dest->tfc = g_array_set_size(dest->tfc, src->tfc->len); |
27304273 |
1141 | |
1142 | for(i=0;i<src->ep->len;i++) { |
1986f254 |
1143 | src_ep = &g_array_index(src->ep, LttEventPosition*, i); |
1144 | dest_ep = &g_array_index(dest->ep, LttEventPosition*, i); |
1145 | if(*src_ep != NULL) { |
33e44b82 |
1146 | if(*dest_ep == NULL) *dest_ep = ltt_event_position_new(); |
1986f254 |
1147 | ltt_event_position_copy( |
1148 | *dest_ep, |
1149 | *src_ep); |
1150 | } else |
1151 | *dest_ep = NULL; |
27304273 |
1152 | } |
1153 | for(i=0;i<src->tfc->len;i++) { |
1154 | g_array_index(dest->tfc, LttvTracefileContext*, i) = |
1155 | g_array_index(src->tfc, LttvTracefileContext*, i); |
5e2c04a2 |
1156 | } |
5e2c04a2 |
1157 | dest->timestamp = src->timestamp; |
1158 | } |
1159 | |
8697a616 |
1160 | gint lttv_traceset_context_ctx_pos_compare(const LttvTracesetContext *self, |
1161 | const LttvTracesetContextPosition *pos) |
1162 | { |
27304273 |
1163 | int i; |
826f1ab2 |
1164 | int ret = 0; |
2c82c4dc |
1165 | |
1166 | if(pos->ep->len == 0) { |
1167 | if(lttv_traceset_number(self->ts) == 0) return 0; |
1168 | else return 1; |
1169 | } |
1170 | if(lttv_traceset_number(self->ts) == 0) |
1171 | return -1; |
1172 | |
27304273 |
1173 | for(i=0;i<pos->ep->len;i++) { |
1174 | LttEventPosition *ep = g_array_index(pos->ep, LttEventPosition*, i); |
1175 | LttvTracefileContext *tfc = |
1176 | g_array_index(pos->tfc, LttvTracefileContext*, i); |
1986f254 |
1177 | |
1178 | if(ep == NULL) { |
1179 | if(ltt_time_compare(tfc->timestamp, ltt_time_infinite) != 0) { |
1180 | ret = -1; |
1181 | } |
1182 | } else { |
1183 | if(ltt_time_compare(tfc->timestamp, ltt_time_infinite) == 0) { |
1184 | ret = 1; |
1185 | } else { |
1186 | LttEvent *event = ltt_tracefile_get_event(tfc->tf); |
8697a616 |
1187 | |
1986f254 |
1188 | ret = ltt_event_position_compare((LttEventPosition*)event, |
1189 | ep); |
1190 | } |
1191 | } |
27304273 |
1192 | if(ret != 0) return ret; |
8697a616 |
1193 | |
8697a616 |
1194 | } |
1195 | return 0; |
1196 | } |
1197 | |
1198 | |
1199 | gint lttv_traceset_context_pos_pos_compare( |
1200 | const LttvTracesetContextPosition *pos1, |
1201 | const LttvTracesetContextPosition *pos2) |
1202 | { |
27304273 |
1203 | int i, j; |
1204 | int ret; |
8697a616 |
1205 | |
2c82c4dc |
1206 | if(pos1->ep->len == 0) { |
1207 | if(pos2->ep->len == 0) return 0; |
1208 | else return 1; |
1209 | } |
1210 | if(pos2->ep->len == 0) |
1211 | return -1; |
1212 | |
27304273 |
1213 | for(i=0;i<pos1->ep->len;i++) { |
1214 | LttEventPosition *ep1 = g_array_index(pos1->ep, LttEventPosition*, i); |
1986f254 |
1215 | LttvTracefileContext *tfc1 = g_array_index(pos1->tfc, |
1216 | LttvTracefileContext*, i); |
27304273 |
1217 | |
1986f254 |
1218 | if(ep1 != NULL) { |
1219 | for(j=0;j<pos2->ep->len;j++) { |
1220 | LttEventPosition *ep2 = g_array_index(pos2->ep, LttEventPosition*, j); |
1221 | LttvTracefileContext *tfc2 = g_array_index(pos2->tfc, |
1222 | LttvTracefileContext*, j); |
1223 | if(tfc1 == tfc2) { |
1224 | if(ep2 != NULL) |
1225 | ret = ltt_event_position_compare(ep1, ep2); |
1226 | else |
1227 | ret = -1; |
1228 | |
1229 | if(ret != 0) return ret; |
1230 | } |
1231 | } |
1232 | } else { |
1233 | for(j=0;j<pos2->ep->len;j++) { |
1234 | LttEventPosition *ep2 = g_array_index(pos2->ep, LttEventPosition*, j); |
1235 | LttvTracefileContext *tfc2 = g_array_index(pos2->tfc, |
1236 | LttvTracefileContext*, j); |
1237 | if(tfc1 == tfc2) { |
1238 | if(ep2 != NULL) ret = 1; |
1239 | } |
27304273 |
1240 | } |
8697a616 |
1241 | } |
1242 | } |
1243 | return 0; |
1244 | } |
1245 | |
1246 | |
2d262115 |
1247 | LttTime lttv_traceset_context_position_get_time( |
1248 | const LttvTracesetContextPosition *pos) |
1249 | { |
1250 | return pos->timestamp; |
1251 | } |
1252 | |
1253 | |
1254 | LttvTracefileContext *lttv_traceset_context_get_current_tfc(LttvTracesetContext *self) |
1255 | { |
1256 | GTree *pqueue = self->pqueue; |
b56b5fec |
1257 | LttvTracefileContext *tfc = NULL; |
2d262115 |
1258 | |
1259 | g_tree_foreach(pqueue, get_first, &tfc); |
1260 | |
1261 | return tfc; |
1262 | } |
18c87975 |
1263 | |
2c82c4dc |
1264 | /* lttv_process_traceset_synchronize_tracefiles |
1265 | * |
1266 | * Use the sync_position field of the trace set context to synchronize each |
1267 | * tracefile with the previously saved position. |
1268 | * |
1269 | * If no previous position has been saved, it simply does nothing. |
1270 | */ |
1271 | void lttv_process_traceset_synchronize_tracefiles(LttvTracesetContext *tsc) |
1272 | { |
1273 | g_assert(lttv_process_traceset_seek_position(tsc, tsc->sync_position) == 0); |
1274 | } |
1275 | |
1276 | |
1277 | |
1278 | |
1279 | void lttv_process_traceset_get_sync_data(LttvTracesetContext *tsc) |
1280 | { |
1281 | lttv_traceset_context_position_save(tsc, tsc->sync_position); |
1282 | } |
1283 | |
0bd2f89c |
1284 | struct seek_back_data { |
1285 | guint first_event; /* Index of the first event in the array : we will always |
1286 | overwrite at this position : this is a circular array. |
1287 | */ |
1288 | guint events_found; |
33e44b82 |
1289 | guint n; /* number of events requested */ |
0bd2f89c |
1290 | GPtrArray *array; /* array of LttvTracesetContextPositions pointers */ |
33e44b82 |
1291 | LttvFilter *filter; |
0bd2f89c |
1292 | }; |
1293 | |
1294 | static gint seek_back_event_hook(void *hook_data, void* call_data) |
1295 | { |
1296 | struct seek_back_data *sd = (struct seek_back_data*)hook_data; |
1297 | LttvTracefileContext *tfc = (LttvTracefileContext*)call_data; |
1298 | LttvTracesetContext *tsc = tfc->t_context->ts_context; |
1299 | LttvTracesetContextPosition *pos; |
33e44b82 |
1300 | |
1301 | if(sd->filter != NULL) { |
1302 | if(!lttv_filter_tree_parse(sd->filter->head, |
1303 | ltt_tracefile_get_event(tfc->tf), |
1304 | tfc->tf, |
1305 | tfc->t_context->t, |
1306 | tfc)) |
1307 | return FALSE; |
0bd2f89c |
1308 | } |
33e44b82 |
1309 | |
1310 | pos = (LttvTracesetContextPosition*)g_ptr_array_index (sd->array, |
1311 | sd->first_event); |
0bd2f89c |
1312 | |
1313 | lttv_traceset_context_position_save(tsc, pos); |
1314 | |
1315 | if(sd->first_event >= sd->array->len - 1) sd->first_event = 0; |
1316 | else sd->first_event++; |
1317 | |
33e44b82 |
1318 | sd->events_found = min(sd->n, sd->events_found + 1); |
0bd2f89c |
1319 | |
1320 | return FALSE; |
1321 | } |
1322 | |
0bd2f89c |
1323 | /* Seek back n events back from the current position. |
1324 | * |
1325 | * Parameters : |
1326 | * @self The trace set context |
1327 | * @n number of events to jump over |
1328 | * @first_offset The initial offset value used. Hint : try about 100000ns. |
33e44b82 |
1329 | * never put first_offset at ltt_time_zero. |
1330 | * @time_seeker Function pointer of the function to use to seek time : |
1331 | * either lttv_process_traceset_seek_time |
1332 | * or lttv_state_traceset_seek_time_closest |
1333 | * @filter The filter to call. |
0bd2f89c |
1334 | * |
1335 | * Return value : the number of events found (might be lower than the number |
1336 | * requested if beginning of traceset is reached). |
1337 | * |
1338 | * The first search will go back first_offset and try to find the last n events |
1339 | * matching the filter. If there are not enough, it will try to go back from the |
1340 | * new trace point from first_offset*2, and so on, until beginning of trace or n |
1341 | * events are found. |
1342 | * |
1343 | * Note : this function does not take in account the LttvFilter : use the |
1344 | * similar function found in state.c instead. |
1345 | * |
1346 | * Note2 : the caller must make sure that the LttvTracesetContext does not |
1347 | * contain any hook, as process_traceset_middle is used in this routine. |
1348 | */ |
1349 | guint lttv_process_traceset_seek_n_backward(LttvTracesetContext *self, |
33e44b82 |
1350 | guint n, LttTime first_offset, |
1351 | seek_time_fct time_seeker, |
1352 | LttvFilter *filter) |
0bd2f89c |
1353 | { |
33e44b82 |
1354 | if(lttv_traceset_number(self->ts) == 0) return 0; |
1355 | g_assert(ltt_time_compare(first_offset, ltt_time_zero) != 0); |
1356 | |
0bd2f89c |
1357 | guint i; |
1358 | LttvTracesetContextPosition *next_iter_end_pos = |
1359 | lttv_traceset_context_position_new(); |
1360 | LttvTracesetContextPosition *end_pos = lttv_traceset_context_position_new(); |
33e44b82 |
1361 | LttvTracesetContextPosition *saved_pos = lttv_traceset_context_position_new(); |
0bd2f89c |
1362 | LttTime time; |
1363 | LttTime time_offset; |
1364 | struct seek_back_data sd; |
1365 | LttvHooks *hooks = lttv_hooks_new(); |
1366 | |
1367 | sd.first_event = 0; |
1368 | sd.events_found = 0; |
1369 | sd.array = g_ptr_array_sized_new(n); |
33e44b82 |
1370 | sd.filter = filter; |
1371 | sd.n = n; |
0bd2f89c |
1372 | g_ptr_array_set_size(sd.array, n); |
1373 | for(i=0;i<n;i++) { |
1374 | g_ptr_array_index (sd.array, i) = lttv_traceset_context_position_new(); |
1375 | } |
33e44b82 |
1376 | |
0bd2f89c |
1377 | lttv_traceset_context_position_save(self, next_iter_end_pos); |
33e44b82 |
1378 | lttv_traceset_context_position_save(self, saved_pos); |
0bd2f89c |
1379 | /* Get the current time from which we will offset */ |
1380 | time = lttv_traceset_context_position_get_time(next_iter_end_pos); |
1381 | /* the position saved might be end of traceset... */ |
1382 | if(ltt_time_compare(time, self->time_span.end_time) > 0) { |
1383 | time = self->time_span.end_time; |
1384 | } |
1385 | time_offset = first_offset; |
1386 | |
1387 | lttv_hooks_add(hooks, seek_back_event_hook, &sd, LTTV_PRIO_DEFAULT); |
1388 | |
1389 | lttv_process_traceset_begin(self, NULL, NULL, NULL, hooks, NULL); |
1390 | |
1391 | while(1) { |
1392 | /* stop criteria : - n events found |
1393 | * - time < beginning of trace */ |
1394 | if(ltt_time_compare(time, self->time_span.start_time) < 0) break; |
0bd2f89c |
1395 | |
1396 | lttv_traceset_context_position_copy(end_pos, next_iter_end_pos); |
1397 | |
1398 | /* We must seek the traceset back to time - time_offset */ |
1399 | /* this time becomes the new reference time */ |
1400 | time = ltt_time_sub(time, time_offset); |
1401 | |
33e44b82 |
1402 | time_seeker(self, time); |
0bd2f89c |
1403 | lttv_traceset_context_position_save(self, next_iter_end_pos); |
33e44b82 |
1404 | /* Resync the time in case of a seek_closest */ |
1405 | time = lttv_traceset_context_position_get_time(next_iter_end_pos); |
1406 | if(ltt_time_compare(time, self->time_span.end_time) > 0) { |
1407 | time = self->time_span.end_time; |
1408 | } |
0bd2f89c |
1409 | |
1410 | /* Process the traceset, calling a hook which adds events |
1411 | * to the array, overwriting the tail. It changes first_event and |
1412 | * events_found too. */ |
1413 | /* We would like to have a clean context here : no other hook than our's */ |
1414 | |
1415 | lttv_process_traceset_middle(self, ltt_time_infinite, |
1416 | G_MAXUINT, end_pos); |
1417 | |
33e44b82 |
1418 | if(sd.events_found < n) { |
1419 | if(sd.first_event > 0) { |
1420 | /* Save the first position */ |
1421 | LttvTracesetContextPosition *pos = |
1422 | (LttvTracesetContextPosition*)g_ptr_array_index (sd.array, 0); |
1423 | lttv_traceset_context_position_copy(saved_pos, pos); |
1424 | } |
1425 | g_assert(n-sd.events_found <= sd.array->len); |
1426 | /* Change array size to n - events_found */ |
1427 | for(i=n-sd.events_found;i<sd.array->len;i++) { |
1428 | LttvTracesetContextPosition *pos = |
1429 | (LttvTracesetContextPosition*)g_ptr_array_index (sd.array, i); |
1430 | lttv_traceset_context_position_destroy(pos); |
1431 | } |
1432 | g_ptr_array_set_size(sd.array, n-sd.events_found); |
1433 | sd.first_event = 0; |
1434 | |
1435 | } else break; /* Second end criterion : n events found */ |
1436 | |
0bd2f89c |
1437 | time_offset = ltt_time_mul(time_offset, BACKWARD_SEEK_MUL); |
1438 | } |
1439 | |
1440 | lttv_traceset_context_position_destroy(end_pos); |
1441 | lttv_traceset_context_position_destroy(next_iter_end_pos); |
1442 | |
1443 | lttv_process_traceset_end(self, NULL, NULL, NULL, hooks, NULL); |
1444 | |
33e44b82 |
1445 | if(sd.events_found >= n) { |
0bd2f89c |
1446 | /* Seek the traceset to the first event in the circular array */ |
1447 | LttvTracesetContextPosition *pos = |
1448 | (LttvTracesetContextPosition*)g_ptr_array_index (sd.array, |
1449 | sd.first_event); |
1450 | g_assert(lttv_process_traceset_seek_position(self, pos) == 0); |
33e44b82 |
1451 | } else { |
1452 | /* Will seek to the last saved position : in the worst case, it will be the |
1453 | * original position (if events_found is 0) */ |
1454 | g_assert(lttv_process_traceset_seek_position(self, saved_pos) == 0); |
0bd2f89c |
1455 | } |
1456 | |
33e44b82 |
1457 | for(i=0;i<sd.array->len;i++) { |
0bd2f89c |
1458 | LttvTracesetContextPosition *pos = |
1459 | (LttvTracesetContextPosition*)g_ptr_array_index (sd.array, i); |
1460 | lttv_traceset_context_position_destroy(pos); |
1461 | } |
1462 | g_ptr_array_free(sd.array, TRUE); |
1463 | |
1464 | lttv_hooks_destroy(hooks); |
1465 | |
33e44b82 |
1466 | lttv_traceset_context_position_destroy(saved_pos); |
1467 | |
0bd2f89c |
1468 | return sd.events_found; |
1469 | } |
1470 | |
1471 | |
1472 | struct seek_forward_data { |
1473 | guint event_count; /* event counter */ |
1474 | guint n; /* requested number of events to jump over */ |
33e44b82 |
1475 | LttvFilter *filter; |
0bd2f89c |
1476 | }; |
1477 | |
1478 | static gint seek_forward_event_hook(void *hook_data, void* call_data) |
1479 | { |
1480 | struct seek_forward_data *sd = (struct seek_forward_data*)hook_data; |
33e44b82 |
1481 | LttvTracefileContext *tfc = (LttvTracefileContext*)call_data; |
0bd2f89c |
1482 | |
33e44b82 |
1483 | if(sd->filter != NULL) { |
1484 | if(!lttv_filter_tree_parse(sd->filter->head, |
1485 | ltt_tracefile_get_event(tfc->tf), |
1486 | tfc->tf, |
1487 | tfc->t_context->t, |
1488 | tfc)) |
1489 | return FALSE; |
1490 | } |
1491 | |
0bd2f89c |
1492 | sd->event_count++; |
1493 | |
1494 | if(sd->event_count >= sd->n) |
1495 | return TRUE; |
1496 | else |
1497 | return FALSE; |
1498 | } |
1499 | |
1500 | /* Seek back n events forward from the current position |
1501 | * |
1502 | * Parameters : |
33e44b82 |
1503 | * @self the trace set context |
1504 | * @n number of events to jump over |
1505 | * @filter filter to call. |
0bd2f89c |
1506 | * |
1507 | * returns : the number of events jumped over (may be less than requested if end |
1508 | * of traceset reached) */ |
1509 | guint lttv_process_traceset_seek_n_forward(LttvTracesetContext *self, |
33e44b82 |
1510 | guint n, LttvFilter *filter) |
0bd2f89c |
1511 | { |
1512 | struct seek_forward_data sd; |
1513 | sd.event_count = 0; |
1514 | sd.n = n; |
33e44b82 |
1515 | sd.filter = filter; |
0bd2f89c |
1516 | LttvHooks *hooks = lttv_hooks_new(); |
1517 | |
1518 | lttv_hooks_add(hooks, seek_forward_event_hook, &sd, LTTV_PRIO_DEFAULT); |
1519 | |
1520 | lttv_process_traceset_begin(self, NULL, NULL, NULL, hooks, NULL); |
1521 | |
1522 | /* it will end on the end of traceset, or the fact that the |
1523 | * hook returns TRUE. |
1524 | */ |
1525 | lttv_process_traceset_middle(self, ltt_time_infinite, |
1526 | G_MAXUINT, NULL); |
1527 | |
1528 | /* Here, our position is either the end of traceset, or the exact position |
1529 | * after n events : leave it like this. */ |
1530 | |
1531 | lttv_process_traceset_end(self, NULL, NULL, NULL, hooks, NULL); |
1532 | |
1533 | lttv_hooks_destroy(hooks); |
1534 | |
1535 | return sd.event_count; |
1536 | } |
1537 | |
1538 | |