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> |
b445142a |
27 | #include <ltt/facility.h> |
a5dcde2f |
28 | #include <ltt/trace.h> |
29 | #include <ltt/type.h> |
33e44b82 |
30 | #include <lttv/filter.h> |
27304273 |
31 | #include <errno.h> |
dc877563 |
32 | |
0bd2f89c |
33 | #define min(a,b) (((a)<(b))?(a):(b)) |
8697a616 |
34 | |
35 | |
27304273 |
36 | gint compare_tracefile(gconstpointer a, gconstpointer b) |
8697a616 |
37 | { |
cf94ff67 |
38 | gint comparison = 0; |
8697a616 |
39 | |
00e74b69 |
40 | const LttvTracefileContext *trace_a = (const LttvTracefileContext *)a; |
00e74b69 |
41 | const LttvTracefileContext *trace_b = (const LttvTracefileContext *)b; |
8697a616 |
42 | |
1d1df11d |
43 | if(likely(trace_a != trace_b)) { |
8fe3c6b6 |
44 | comparison = ltt_time_compare(trace_a->timestamp, trace_b->timestamp); |
1d1df11d |
45 | if(unlikely(comparison == 0)) { |
a855f059 |
46 | if(trace_a->index < trace_b->index) comparison = -1; |
47 | else if(trace_a->index > trace_b->index) comparison = 1; |
48 | else if(trace_a->t_context->index < trace_b->t_context->index) |
49 | comparison = -1; |
50 | else if(trace_a->t_context->index > trace_b->t_context->index) |
51 | comparison = 1; |
52 | } |
cf94ff67 |
53 | } |
cf94ff67 |
54 | return comparison; |
8697a616 |
55 | } |
56 | |
9ba3aaaf |
57 | typedef struct _LttvTracefileContextPosition { |
58 | LttEventPosition *event; |
59 | LttvTracefileContext *tfc; |
60 | gboolean used; /* Tells if the tfc is at end of traceset position */ |
61 | } LttvTracefileContextPosition; |
62 | |
63 | |
8697a616 |
64 | struct _LttvTracesetContextPosition { |
9ba3aaaf |
65 | GArray *tfcp; /* Array of LttvTracefileContextPosition */ |
18c87975 |
66 | LttTime timestamp; /* Current time at the saved position */ |
67 | /* If ltt_time_infinite : no position is |
68 | * set, else, a position is set (may be end |
69 | * of trace, with ep->len == 0) */ |
8697a616 |
70 | }; |
71 | |
ffd54a90 |
72 | void lttv_context_init(LttvTracesetContext *self, LttvTraceset *ts) |
dc877563 |
73 | { |
ffd54a90 |
74 | LTTV_TRACESET_CONTEXT_GET_CLASS(self)->init(self, ts); |
dc877563 |
75 | } |
76 | |
77 | |
78 | void lttv_context_fini(LttvTracesetContext *self) |
79 | { |
80 | LTTV_TRACESET_CONTEXT_GET_CLASS(self)->fini(self); |
81 | } |
82 | |
83 | |
84 | LttvTracesetContext * |
85 | lttv_context_new_traceset_context(LttvTracesetContext *self) |
86 | { |
87 | return LTTV_TRACESET_CONTEXT_GET_CLASS(self)->new_traceset_context(self); |
88 | } |
89 | |
90 | |
91 | |
92 | |
93 | LttvTraceContext * |
94 | lttv_context_new_trace_context(LttvTracesetContext *self) |
95 | { |
96 | return LTTV_TRACESET_CONTEXT_GET_CLASS(self)->new_trace_context(self); |
97 | } |
98 | |
99 | |
100 | LttvTracefileContext * |
101 | lttv_context_new_tracefile_context(LttvTracesetContext *self) |
102 | { |
c6bc9cb9 |
103 | return LTTV_TRACESET_CONTEXT_GET_CLASS(self)->new_tracefile_context(self); |
dc877563 |
104 | } |
105 | |
f7afe191 |
106 | /**************************************************************************** |
107 | * lttv_traceset_context_compute_time_span |
108 | * |
8697a616 |
109 | * Keep the time span is sync with on the fly addition and removal of traces |
f7afe191 |
110 | * in a trace set. It must be called each time a trace is added/removed from |
111 | * the traceset. It could be more efficient to call it only once a bunch |
112 | * of traces are loaded, but the calculation is not long, so it's not |
113 | * critical. |
114 | * |
115 | * Author : Xang Xiu Yang |
f7afe191 |
116 | ***************************************************************************/ |
117 | static void lttv_traceset_context_compute_time_span( |
118 | LttvTracesetContext *self, |
33f7a12c |
119 | TimeInterval *time_span) |
f7afe191 |
120 | { |
121 | LttvTraceset * traceset = self->ts; |
122 | int numTraces = lttv_traceset_number(traceset); |
123 | int i; |
124 | LttTime s, e; |
125 | LttvTraceContext *tc; |
126 | LttTrace * trace; |
127 | |
33f7a12c |
128 | time_span->start_time.tv_sec = 0; |
129 | time_span->start_time.tv_nsec = 0; |
130 | time_span->end_time.tv_sec = 0; |
131 | time_span->end_time.tv_nsec = 0; |
912be9a5 |
132 | |
f7afe191 |
133 | for(i=0; i<numTraces;i++){ |
134 | tc = self->traces[i]; |
135 | trace = tc->t; |
136 | |
137 | ltt_trace_time_span_get(trace, &s, &e); |
14aecf75 |
138 | tc->time_span.start_time = s; |
139 | tc->time_span.end_time = e; |
f7afe191 |
140 | |
141 | if(i==0){ |
33f7a12c |
142 | time_span->start_time = s; |
143 | time_span->end_time = e; |
f7afe191 |
144 | }else{ |
33f7a12c |
145 | if(s.tv_sec < time_span->start_time.tv_sec |
146 | || (s.tv_sec == time_span->start_time.tv_sec |
147 | && s.tv_nsec < time_span->start_time.tv_nsec)) |
148 | time_span->start_time = s; |
149 | if(e.tv_sec > time_span->end_time.tv_sec |
150 | || (e.tv_sec == time_span->end_time.tv_sec |
151 | && e.tv_nsec > time_span->end_time.tv_nsec)) |
152 | time_span->end_time = e; |
f7afe191 |
153 | } |
154 | } |
155 | } |
156 | |
eed2ef37 |
157 | static void init_tracefile_context(LttTracefile *tracefile, |
158 | LttvTraceContext *tc) |
159 | { |
160 | LttvTracefileContext *tfc; |
161 | LttvTracesetContext *tsc = tc->ts_context; |
162 | |
163 | tfc = LTTV_TRACESET_CONTEXT_GET_CLASS(tsc)->new_tracefile_context(tsc); |
164 | |
165 | tfc->index = tc->tracefiles->len; |
166 | tc->tracefiles = g_array_append_val(tc->tracefiles, tfc); |
167 | |
168 | tfc->tf = tracefile; |
169 | |
170 | tfc->t_context = tc; |
171 | tfc->event = lttv_hooks_new(); |
172 | tfc->event_by_id = lttv_hooks_by_id_new(); |
173 | tfc->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
174 | } |
175 | |
dc877563 |
176 | |
177 | static void |
178 | init(LttvTracesetContext *self, LttvTraceset *ts) |
179 | { |
327a4314 |
180 | guint i, nb_trace; |
dc877563 |
181 | |
182 | LttvTraceContext *tc; |
183 | |
3865ea09 |
184 | GData **tracefiles_groups; |
dc877563 |
185 | |
eed2ef37 |
186 | struct compute_tracefile_group_args args; |
308711e5 |
187 | |
dc877563 |
188 | nb_trace = lttv_traceset_number(ts); |
189 | self->ts = ts; |
ffd54a90 |
190 | self->traces = g_new(LttvTraceContext *, nb_trace); |
ffd54a90 |
191 | self->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
308711e5 |
192 | self->ts_a = lttv_traceset_attribute(ts); |
dc877563 |
193 | for(i = 0 ; i < nb_trace ; i++) { |
ffd54a90 |
194 | tc = LTTV_TRACESET_CONTEXT_GET_CLASS(self)->new_trace_context(self); |
dc877563 |
195 | self->traces[i] = tc; |
196 | |
197 | tc->ts_context = self; |
198 | tc->index = i; |
308711e5 |
199 | tc->vt = lttv_traceset_get(ts, i); |
200 | tc->t = lttv_trace(tc->vt); |
ffd54a90 |
201 | tc->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
308711e5 |
202 | tc->t_a = lttv_trace_attribute(tc->vt); |
3865ea09 |
203 | tc->tracefiles = g_array_sized_new(FALSE, TRUE, |
204 | sizeof(LttvTracefileContext*), 10); |
eed2ef37 |
205 | |
206 | tracefiles_groups = ltt_trace_get_tracefiles_groups(tc->t); |
e45551ac |
207 | if(tracefiles_groups != NULL) { |
208 | args.func = (ForEachTraceFileFunc)init_tracefile_context; |
209 | args.func_args = tc; |
eed2ef37 |
210 | |
e45551ac |
211 | g_datalist_foreach(tracefiles_groups, |
212 | (GDataForeachFunc)compute_tracefile_group, |
213 | &args); |
214 | } |
eed2ef37 |
215 | |
216 | #if 0 |
dc877563 |
217 | nb_control = ltt_trace_control_tracefile_number(tc->t); |
218 | nb_per_cpu = ltt_trace_per_cpu_tracefile_number(tc->t); |
219 | nb_tracefile = nb_control + nb_per_cpu; |
dbb7bb09 |
220 | tc->tracefiles = g_new(LttvTracefileContext *, nb_tracefile); |
dc877563 |
221 | |
222 | for(j = 0 ; j < nb_tracefile ; j++) { |
ffd54a90 |
223 | tfc = LTTV_TRACESET_CONTEXT_GET_CLASS(self)->new_tracefile_context(self); |
dbb7bb09 |
224 | tc->tracefiles[j] = tfc; |
225 | tfc->index = j; |
226 | |
dc877563 |
227 | if(j < nb_control) { |
dc877563 |
228 | tfc->control = TRUE; |
ffd54a90 |
229 | tfc->tf = ltt_trace_control_tracefile_get(tc->t, j); |
dc877563 |
230 | } |
231 | else { |
dc877563 |
232 | tfc->control = FALSE; |
ffd54a90 |
233 | tfc->tf = ltt_trace_per_cpu_tracefile_get(tc->t, j - nb_control); |
dc877563 |
234 | } |
eed2ef37 |
235 | |
dc877563 |
236 | tfc->t_context = tc; |
d3e01c7a |
237 | tfc->e = ltt_event_new(); |
8697a616 |
238 | tfc->event = lttv_hooks_new(); |
239 | tfc->event_by_id = lttv_hooks_by_id_new(); |
ffd54a90 |
240 | tfc->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
dc877563 |
241 | } |
eed2ef37 |
242 | #endif //0 |
243 | |
dc877563 |
244 | } |
9ba3aaaf |
245 | self->sync_position = lttv_traceset_context_position_new(self); |
2d262115 |
246 | self->pqueue = g_tree_new(compare_tracefile); |
eed2ef37 |
247 | lttv_process_traceset_seek_time(self, ltt_time_zero); |
33f7a12c |
248 | lttv_traceset_context_compute_time_span(self, &self->time_span); |
8697a616 |
249 | |
dc877563 |
250 | } |
251 | |
252 | |
253 | void fini(LttvTracesetContext *self) |
254 | { |
dbb7bb09 |
255 | guint i, j, nb_trace, nb_tracefile; |
dc877563 |
256 | |
257 | LttvTraceContext *tc; |
258 | |
1986f254 |
259 | LttvTracefileContext **tfc; |
dc877563 |
260 | |
ffd54a90 |
261 | LttvTraceset *ts = self->ts; |
dc877563 |
262 | |
8697a616 |
263 | g_tree_destroy(self->pqueue); |
2061e03d |
264 | g_object_unref(self->a); |
18c87975 |
265 | lttv_traceset_context_position_destroy(self->sync_position); |
dc877563 |
266 | |
267 | nb_trace = lttv_traceset_number(ts); |
268 | |
269 | for(i = 0 ; i < nb_trace ; i++) { |
270 | tc = self->traces[i]; |
271 | |
ffd54a90 |
272 | g_object_unref(tc->a); |
dc877563 |
273 | |
eed2ef37 |
274 | nb_tracefile = tc->tracefiles->len; |
dc877563 |
275 | |
276 | for(j = 0 ; j < nb_tracefile ; j++) { |
1986f254 |
277 | tfc = &g_array_index(tc->tracefiles, LttvTracefileContext*, j); |
278 | lttv_hooks_destroy((*tfc)->event); |
279 | lttv_hooks_by_id_destroy((*tfc)->event_by_id); |
280 | g_object_unref((*tfc)->a); |
281 | g_object_unref(*tfc); |
dc877563 |
282 | } |
eed2ef37 |
283 | g_array_free(tc->tracefiles, TRUE); |
dc877563 |
284 | g_object_unref(tc); |
285 | } |
286 | g_free(self->traces); |
287 | } |
288 | |
289 | |
290 | void lttv_traceset_context_add_hooks(LttvTracesetContext *self, |
8697a616 |
291 | LttvHooks *before_traceset, |
dc877563 |
292 | LttvHooks *before_trace, |
ffd54a90 |
293 | LttvHooks *before_tracefile, |
8697a616 |
294 | LttvHooks *event, |
295 | LttvHooksById *event_by_id) |
dc877563 |
296 | { |
297 | LttvTraceset *ts = self->ts; |
298 | |
8697a616 |
299 | guint i, nb_trace; |
dc877563 |
300 | |
301 | LttvTraceContext *tc; |
302 | |
8697a616 |
303 | lttv_hooks_call(before_traceset, self); |
dc877563 |
304 | |
dc877563 |
305 | nb_trace = lttv_traceset_number(ts); |
306 | |
307 | for(i = 0 ; i < nb_trace ; i++) { |
308 | tc = self->traces[i]; |
8697a616 |
309 | lttv_trace_context_add_hooks(tc, |
310 | before_trace, |
311 | before_tracefile, |
312 | event, |
313 | event_by_id); |
dc877563 |
314 | } |
315 | } |
316 | |
317 | |
318 | void lttv_traceset_context_remove_hooks(LttvTracesetContext *self, |
dc877563 |
319 | LttvHooks *after_traceset, |
dc877563 |
320 | LttvHooks *after_trace, |
ffd54a90 |
321 | LttvHooks *after_tracefile, |
8697a616 |
322 | LttvHooks *event, |
323 | LttvHooksById *event_by_id) |
dc877563 |
324 | { |
8697a616 |
325 | |
dc877563 |
326 | LttvTraceset *ts = self->ts; |
327 | |
8697a616 |
328 | guint i, nb_trace; |
dc877563 |
329 | |
330 | LttvTraceContext *tc; |
331 | |
dc877563 |
332 | nb_trace = lttv_traceset_number(ts); |
333 | |
334 | for(i = 0 ; i < nb_trace ; i++) { |
335 | tc = self->traces[i]; |
8697a616 |
336 | lttv_trace_context_remove_hooks(tc, |
337 | after_trace, |
338 | after_tracefile, |
339 | event, |
340 | event_by_id); |
dc877563 |
341 | } |
8697a616 |
342 | |
343 | lttv_hooks_call(after_traceset, self); |
344 | |
345 | |
dc877563 |
346 | } |
347 | |
8697a616 |
348 | void lttv_trace_context_add_hooks(LttvTraceContext *self, |
349 | LttvHooks *before_trace, |
350 | LttvHooks *before_tracefile, |
351 | LttvHooks *event, |
352 | LttvHooksById *event_by_id) |
a8c0f09d |
353 | { |
8697a616 |
354 | guint i, nb_tracefile; |
355 | |
1986f254 |
356 | LttvTracefileContext **tfc; |
8697a616 |
357 | |
358 | lttv_hooks_call(before_trace, self); |
eed2ef37 |
359 | |
360 | nb_tracefile = self->tracefiles->len; |
8697a616 |
361 | |
362 | for(i = 0 ; i < nb_tracefile ; i++) { |
1986f254 |
363 | tfc = &g_array_index(self->tracefiles, LttvTracefileContext*, i); |
364 | lttv_tracefile_context_add_hooks(*tfc, |
8697a616 |
365 | before_tracefile, |
366 | event, |
367 | event_by_id); |
368 | } |
a8c0f09d |
369 | } |
370 | |
8697a616 |
371 | |
372 | |
373 | void lttv_trace_context_remove_hooks(LttvTraceContext *self, |
374 | LttvHooks *after_trace, |
375 | LttvHooks *after_tracefile, |
376 | LttvHooks *event, |
377 | LttvHooksById *event_by_id) |
a8c0f09d |
378 | { |
8697a616 |
379 | guint i, nb_tracefile; |
380 | |
1986f254 |
381 | LttvTracefileContext **tfc; |
8697a616 |
382 | |
eed2ef37 |
383 | nb_tracefile = self->tracefiles->len; |
8697a616 |
384 | |
385 | for(i = 0 ; i < nb_tracefile ; i++) { |
1986f254 |
386 | tfc = &g_array_index(self->tracefiles, LttvTracefileContext*, i); |
387 | lttv_tracefile_context_remove_hooks(*tfc, |
8697a616 |
388 | after_tracefile, |
389 | event, |
390 | event_by_id); |
391 | } |
392 | |
393 | lttv_hooks_call(after_trace, self); |
a8c0f09d |
394 | } |
395 | |
8697a616 |
396 | void lttv_tracefile_context_add_hooks(LttvTracefileContext *self, |
397 | LttvHooks *before_tracefile, |
398 | LttvHooks *event, |
399 | LttvHooksById *event_by_id) |
a8c0f09d |
400 | { |
9d239bd9 |
401 | guint i, index; |
8697a616 |
402 | |
403 | LttvHooks *hook; |
404 | |
405 | lttv_hooks_call(before_tracefile, self); |
406 | lttv_hooks_add_list(self->event, event); |
9d239bd9 |
407 | if(event_by_id != NULL) { |
408 | for(i = 0; i < event_by_id->array->len; i++) { |
409 | index = g_array_index(event_by_id->array, guint, i); |
410 | hook = lttv_hooks_by_id_find(self->event_by_id, index); |
411 | lttv_hooks_add_list(hook, lttv_hooks_by_id_get(event_by_id, index)); |
8697a616 |
412 | } |
9d239bd9 |
413 | } |
a8c0f09d |
414 | } |
415 | |
8697a616 |
416 | void lttv_tracefile_context_remove_hooks(LttvTracefileContext *self, |
417 | LttvHooks *after_tracefile, |
418 | LttvHooks *event, |
419 | LttvHooksById *event_by_id) |
a8c0f09d |
420 | { |
9d239bd9 |
421 | guint i, index; |
8697a616 |
422 | |
423 | LttvHooks *hook; |
424 | |
8697a616 |
425 | lttv_hooks_remove_list(self->event, event); |
9d239bd9 |
426 | if(event_by_id != NULL) { |
427 | for(i = 0; i < event_by_id->array->len; i++) { |
428 | index = g_array_index(event_by_id->array, guint, i); |
429 | hook = lttv_hooks_by_id_get(self->event_by_id, index); |
41a9e0c3 |
430 | if(hook != NULL) |
9d239bd9 |
431 | lttv_hooks_remove_list(hook, lttv_hooks_by_id_get(event_by_id, index)); |
8697a616 |
432 | } |
9d239bd9 |
433 | } |
8697a616 |
434 | |
435 | lttv_hooks_call(after_tracefile, self); |
a8c0f09d |
436 | } |
437 | |
8697a616 |
438 | |
439 | |
a8c0f09d |
440 | void lttv_tracefile_context_add_hooks_by_id(LttvTracefileContext *tfc, |
441 | unsigned i, |
8697a616 |
442 | LttvHooks *event_by_id) |
a8c0f09d |
443 | { |
444 | LttvHooks * h; |
8697a616 |
445 | h = lttv_hooks_by_id_find(tfc->event_by_id, i); |
446 | lttv_hooks_add_list(h, event_by_id); |
a8c0f09d |
447 | } |
448 | |
449 | void lttv_tracefile_context_remove_hooks_by_id(LttvTracefileContext *tfc, |
450 | unsigned i) |
451 | { |
8697a616 |
452 | lttv_hooks_by_id_remove(tfc->event_by_id, i); |
a8c0f09d |
453 | } |
dc877563 |
454 | |
ba576a78 |
455 | static LttvTracesetContext * |
dc877563 |
456 | new_traceset_context(LttvTracesetContext *self) |
457 | { |
ffd54a90 |
458 | return g_object_new(LTTV_TRACESET_CONTEXT_TYPE, NULL); |
dc877563 |
459 | } |
460 | |
461 | |
ba576a78 |
462 | static LttvTraceContext * |
dc877563 |
463 | new_trace_context(LttvTracesetContext *self) |
464 | { |
ffd54a90 |
465 | return g_object_new(LTTV_TRACE_CONTEXT_TYPE, NULL); |
dc877563 |
466 | } |
467 | |
468 | |
ba576a78 |
469 | static LttvTracefileContext * |
dc877563 |
470 | new_tracefile_context(LttvTracesetContext *self) |
471 | { |
ffd54a90 |
472 | return g_object_new(LTTV_TRACEFILE_CONTEXT_TYPE, NULL); |
dc877563 |
473 | } |
474 | |
475 | |
476 | static void |
477 | traceset_context_instance_init (GTypeInstance *instance, gpointer g_class) |
478 | { |
479 | /* Be careful of anything which would not work well with shallow copies */ |
480 | } |
481 | |
482 | |
483 | static void |
484 | traceset_context_finalize (LttvTracesetContext *self) |
485 | { |
b445142a |
486 | G_OBJECT_CLASS(g_type_class_peek(g_type_parent(LTTV_TRACESET_CONTEXT_TYPE))) |
487 | ->finalize(G_OBJECT(self)); |
dc877563 |
488 | } |
489 | |
490 | |
491 | static void |
492 | traceset_context_class_init (LttvTracesetContextClass *klass) |
493 | { |
494 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
495 | |
ffd54a90 |
496 | gobject_class->finalize = (void (*)(GObject *self))traceset_context_finalize; |
dc877563 |
497 | klass->init = init; |
498 | klass->fini = fini; |
499 | klass->new_traceset_context = new_traceset_context; |
500 | klass->new_trace_context = new_trace_context; |
501 | klass->new_tracefile_context = new_tracefile_context; |
502 | } |
503 | |
504 | |
505 | GType |
ffd54a90 |
506 | lttv_traceset_context_get_type(void) |
dc877563 |
507 | { |
508 | static GType type = 0; |
509 | if (type == 0) { |
510 | static const GTypeInfo info = { |
ffd54a90 |
511 | sizeof (LttvTracesetContextClass), |
dc877563 |
512 | NULL, /* base_init */ |
513 | NULL, /* base_finalize */ |
ffd54a90 |
514 | (GClassInitFunc) traceset_context_class_init, /* class_init */ |
dc877563 |
515 | NULL, /* class_finalize */ |
516 | NULL, /* class_data */ |
ffd54a90 |
517 | sizeof (LttvTracesetContext), |
dc877563 |
518 | 0, /* n_preallocs */ |
00e74b69 |
519 | (GInstanceInitFunc) traceset_context_instance_init, /* instance_init */ |
520 | NULL /* Value handling */ |
dc877563 |
521 | }; |
522 | |
ffd54a90 |
523 | type = g_type_register_static (G_TYPE_OBJECT, "LttvTracesetContextType", |
dc877563 |
524 | &info, 0); |
525 | } |
526 | return type; |
527 | } |
528 | |
529 | |
530 | static void |
531 | trace_context_instance_init (GTypeInstance *instance, gpointer g_class) |
532 | { |
533 | /* Be careful of anything which would not work well with shallow copies */ |
534 | } |
535 | |
536 | |
537 | static void |
538 | trace_context_finalize (LttvTraceContext *self) |
539 | { |
b445142a |
540 | G_OBJECT_CLASS(g_type_class_peek(g_type_parent(LTTV_TRACE_CONTEXT_TYPE)))-> |
541 | finalize(G_OBJECT(self)); |
dc877563 |
542 | } |
543 | |
544 | |
545 | static void |
546 | trace_context_class_init (LttvTraceContextClass *klass) |
547 | { |
548 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
549 | |
ffd54a90 |
550 | gobject_class->finalize = (void (*)(GObject *self)) trace_context_finalize; |
dc877563 |
551 | } |
552 | |
553 | |
554 | GType |
ffd54a90 |
555 | lttv_trace_context_get_type(void) |
dc877563 |
556 | { |
557 | static GType type = 0; |
558 | if (type == 0) { |
559 | static const GTypeInfo info = { |
ffd54a90 |
560 | sizeof (LttvTraceContextClass), |
dc877563 |
561 | NULL, /* base_init */ |
562 | NULL, /* base_finalize */ |
ffd54a90 |
563 | (GClassInitFunc) trace_context_class_init, /* class_init */ |
dc877563 |
564 | NULL, /* class_finalize */ |
565 | NULL, /* class_data */ |
c6bc9cb9 |
566 | sizeof (LttvTraceContext), |
dc877563 |
567 | 0, /* n_preallocs */ |
00e74b69 |
568 | (GInstanceInitFunc) trace_context_instance_init, /* instance_init */ |
569 | NULL /* Value handling */ |
dc877563 |
570 | }; |
571 | |
ffd54a90 |
572 | type = g_type_register_static (G_TYPE_OBJECT, "LttvTraceContextType", |
dc877563 |
573 | &info, 0); |
574 | } |
575 | return type; |
576 | } |
577 | |
578 | |
579 | static void |
580 | tracefile_context_instance_init (GTypeInstance *instance, gpointer g_class) |
581 | { |
582 | /* Be careful of anything which would not work well with shallow copies */ |
583 | } |
584 | |
585 | |
586 | static void |
587 | tracefile_context_finalize (LttvTracefileContext *self) |
588 | { |
b445142a |
589 | G_OBJECT_CLASS(g_type_class_peek(g_type_parent(LTTV_TRACEFILE_CONTEXT_TYPE))) |
590 | ->finalize(G_OBJECT(self)); |
dc877563 |
591 | } |
592 | |
593 | |
594 | static void |
595 | tracefile_context_class_init (LttvTracefileContextClass *klass) |
596 | { |
597 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
598 | |
ffd54a90 |
599 | gobject_class->finalize = (void (*)(GObject *self))tracefile_context_finalize; |
600 | } |
601 | |
602 | |
603 | GType |
604 | lttv_tracefile_context_get_type(void) |
605 | { |
606 | static GType type = 0; |
607 | if (type == 0) { |
608 | static const GTypeInfo info = { |
609 | sizeof (LttvTracefileContextClass), |
610 | NULL, /* base_init */ |
611 | NULL, /* base_finalize */ |
612 | (GClassInitFunc) tracefile_context_class_init, /* class_init */ |
613 | NULL, /* class_finalize */ |
614 | NULL, /* class_data */ |
615 | sizeof (LttvTracefileContext), |
616 | 0, /* n_preallocs */ |
00e74b69 |
617 | (GInstanceInitFunc) tracefile_context_instance_init, /* instance_init */ |
618 | NULL /* Value handling */ |
ffd54a90 |
619 | }; |
620 | |
621 | type = g_type_register_static (G_TYPE_OBJECT, "LttvTracefileContextType", |
622 | &info, 0); |
623 | } |
624 | return type; |
dc877563 |
625 | } |
626 | |
627 | |
dc877563 |
628 | |
6843100a |
629 | static gboolean get_first(gpointer key, gpointer value, gpointer user_data) { |
77199e93 |
630 | g_assert(key == value); |
dc877563 |
631 | *((LttvTracefileContext **)user_data) = (LttvTracefileContext *)value; |
632 | return TRUE; |
633 | } |
634 | |
e7f5e89d |
635 | #ifdef DEBUG |
636 | // Test to see if pqueue is traversed in the right order. |
637 | static LttTime test_time; |
638 | |
698e81c2 |
639 | static gboolean test_tree(gpointer key, gpointer value, gpointer user_data) { |
640 | |
77199e93 |
641 | LttvTracefileContext *tfc = (LttvTracefileContext *)key; |
642 | |
643 | g_debug("Tracefile name %s, time %lu.%lu, tfi %u, ti %u", |
644 | g_quark_to_string(ltt_tracefile_name(tfc->tf)), |
645 | tfc->timestamp.tv_sec, tfc->timestamp.tv_nsec, |
646 | tfc->index, tfc->t_context->index); |
e7f5e89d |
647 | |
648 | if(user_data != NULL) { |
649 | if(((LttvTracefileContext *)user_data) == (LttvTracefileContext *)value) { |
650 | g_assert(compare_tracefile(user_data, value) == 0); |
651 | } else |
652 | g_assert(compare_tracefile(user_data, value) != 0); |
653 | } |
654 | g_assert(ltt_time_compare(test_time, tfc->timestamp) <= 0); |
655 | test_time.tv_sec = tfc->timestamp.tv_sec; |
656 | test_time.tv_nsec = tfc->timestamp.tv_nsec; |
77199e93 |
657 | |
77199e93 |
658 | |
659 | //g_assert(((LttvTracefileContext *)user_data) != (LttvTracefileContext *)value); |
698e81c2 |
660 | return FALSE; |
661 | } |
e7f5e89d |
662 | #endif //DEBUG |
698e81c2 |
663 | |
664 | |
dc877563 |
665 | |
8697a616 |
666 | void lttv_process_traceset_begin(LttvTracesetContext *self, |
667 | LttvHooks *before_traceset, |
668 | LttvHooks *before_trace, |
669 | LttvHooks *before_tracefile, |
670 | LttvHooks *event, |
671 | LttvHooksById *event_by_id) |
672 | { |
dc877563 |
673 | |
8697a616 |
674 | /* simply add hooks in context. _before hooks are called by add_hooks. */ |
675 | /* It calls all before_traceset, before_trace, and before_tracefile hooks. */ |
676 | lttv_traceset_context_add_hooks(self, |
677 | before_traceset, |
678 | before_trace, |
679 | before_tracefile, |
680 | event, |
681 | event_by_id); |
682 | |
2a2fa4f0 |
683 | } |
684 | |
bd4c3eca |
685 | //enum read_state { LAST_NONE, LAST_OK, LAST_EMPTY }; |
36d36c9f |
686 | |
8697a616 |
687 | /* Note : a _middle must be preceded from a _seek or another middle */ |
688 | guint lttv_process_traceset_middle(LttvTracesetContext *self, |
689 | LttTime end, |
b8eccacd |
690 | guint nb_events, |
8697a616 |
691 | const LttvTracesetContextPosition *end_position) |
2a2fa4f0 |
692 | { |
693 | GTree *pqueue = self->pqueue; |
694 | |
698e81c2 |
695 | guint fac_id, ev_id, id; |
2a2fa4f0 |
696 | |
2a2fa4f0 |
697 | LttvTracefileContext *tfc; |
698 | |
eed2ef37 |
699 | LttEvent *e; |
700 | |
2a2fa4f0 |
701 | unsigned count = 0; |
702 | |
36d36c9f |
703 | guint read_ret; |
704 | |
bd4c3eca |
705 | //enum read_state last_read_state = LAST_NONE; |
698e81c2 |
706 | |
78b82ded |
707 | gint last_ret = 0; /* return value of the last hook list called */ |
a54f091a |
708 | |
dc877563 |
709 | /* Get the next event from the pqueue, call its hooks, |
710 | reinsert in the pqueue the following event from the same tracefile |
711 | unless the tracefile is finished or the event is later than the |
8697a616 |
712 | end time. */ |
dc877563 |
713 | |
ffd54a90 |
714 | while(TRUE) { |
dc877563 |
715 | tfc = NULL; |
716 | g_tree_foreach(pqueue, get_first, &tfc); |
33f7a12c |
717 | /* End of traceset : tfc is NULL */ |
1d1df11d |
718 | if(unlikely(tfc == NULL)) |
a43d67ba |
719 | { |
a43d67ba |
720 | return count; |
721 | } |
dc877563 |
722 | |
8697a616 |
723 | /* Have we reached : |
724 | * - the maximum number of events specified? |
725 | * - the end position ? |
726 | * - the end time ? |
727 | * then the read is finished. We leave the queue in the same state and |
728 | * break the loop. |
729 | */ |
730 | |
1d1df11d |
731 | if(unlikely(last_ret == TRUE || |
d052ffc3 |
732 | ((count >= nb_events) && (nb_events != G_MAXULONG)) || |
8b0bbe19 |
733 | (end_position!=NULL&<tv_traceset_context_ctx_pos_compare(self, |
734 | end_position) == 0)|| |
1d1df11d |
735 | ltt_time_compare(end, tfc->timestamp) <= 0)) |
a43d67ba |
736 | { |
a43d67ba |
737 | return count; |
738 | } |
36d36c9f |
739 | |
308711e5 |
740 | /* Get the tracefile with an event for the smallest time found. If two |
741 | or more tracefiles have events for the same time, hope that lookup |
742 | and remove are consistent. */ |
1986f254 |
743 | |
744 | #ifdef DEBUG |
e7f5e89d |
745 | test_time.tv_sec = 0; |
746 | test_time.tv_nsec = 0; |
77199e93 |
747 | g_debug("test tree before remove"); |
748 | g_tree_foreach(pqueue, test_tree, tfc); |
1986f254 |
749 | #endif //DEBUG |
f95bc830 |
750 | g_tree_remove(pqueue, tfc); |
698e81c2 |
751 | |
1986f254 |
752 | #ifdef DEBUG |
e7f5e89d |
753 | test_time.tv_sec = 0; |
754 | test_time.tv_nsec = 0; |
77199e93 |
755 | g_debug("test tree after remove"); |
698e81c2 |
756 | g_tree_foreach(pqueue, test_tree, tfc); |
1986f254 |
757 | #endif //DEBUG |
77199e93 |
758 | |
bd4c3eca |
759 | |
eed2ef37 |
760 | e = ltt_tracefile_get_event(tfc->tf); |
dc877563 |
761 | |
bd4c3eca |
762 | //if(last_read_state != LAST_EMPTY) { |
763 | /* Only call hooks if the last read has given an event or if we are at the |
764 | * first pass (not if last read returned end of tracefile) */ |
765 | count++; |
766 | |
767 | fac_id = ltt_event_facility_id(e); |
768 | ev_id = ltt_event_eventtype_id(e); |
769 | id = GET_HOOK_ID(fac_id, ev_id); |
1fae3dd3 |
770 | /* Hooks : |
771 | * return values : 0 : continue read, 1 : go to next position and stop read, |
772 | * 2 : stay at the current position and stop read */ |
bd4c3eca |
773 | last_ret = lttv_hooks_call_merge(tfc->event, tfc, |
774 | lttv_hooks_by_id_get(tfc->event_by_id, id), tfc); |
1fae3dd3 |
775 | |
aaecaa99 |
776 | #if 0 |
777 | /* This is buggy : it won't work well with state computation */ |
876b4889 |
778 | if(unlikely(last_ret == 2)) { |
1fae3dd3 |
779 | /* This is a case where we want to stay at this position and stop read. */ |
780 | g_tree_insert(pqueue, tfc, tfc); |
781 | return count - 1; |
782 | } |
aaecaa99 |
783 | #endif //0 |
698e81c2 |
784 | read_ret = ltt_tracefile_read(tfc->tf); |
1fae3dd3 |
785 | |
786 | |
698e81c2 |
787 | if(likely(!read_ret)) { |
3054461a |
788 | //g_debug("An event is ready"); |
eed2ef37 |
789 | tfc->timestamp = ltt_event_time(e); |
e7f5e89d |
790 | g_assert(ltt_time_compare(tfc->timestamp, ltt_time_infinite) != 0); |
33f7a12c |
791 | g_tree_insert(pqueue, tfc, tfc); |
e7f5e89d |
792 | #ifdef DEBUG |
793 | test_time.tv_sec = 0; |
794 | test_time.tv_nsec = 0; |
795 | g_debug("test tree after event ready"); |
796 | g_tree_foreach(pqueue, test_tree, NULL); |
797 | #endif //DEBUG |
798 | |
bd4c3eca |
799 | //last_read_state = LAST_OK; |
698e81c2 |
800 | } else { |
1986f254 |
801 | tfc->timestamp = ltt_time_infinite; |
802 | |
36d36c9f |
803 | if(read_ret == ERANGE) { |
bd4c3eca |
804 | // last_read_state = LAST_EMPTY; |
698e81c2 |
805 | g_debug("End of trace"); |
36d36c9f |
806 | } else |
698e81c2 |
807 | g_error("Error happened in lttv_process_traceset_middle"); |
dc877563 |
808 | } |
809 | } |
2a2fa4f0 |
810 | } |
811 | |
812 | |
8697a616 |
813 | void lttv_process_traceset_end(LttvTracesetContext *self, |
814 | LttvHooks *after_traceset, |
815 | LttvHooks *after_trace, |
816 | LttvHooks *after_tracefile, |
817 | LttvHooks *event, |
818 | LttvHooksById *event_by_id) |
2a2fa4f0 |
819 | { |
8697a616 |
820 | /* Remove hooks from context. _after hooks are called by remove_hooks. */ |
821 | /* It calls all after_traceset, after_trace, and after_tracefile hooks. */ |
822 | lttv_traceset_context_remove_hooks(self, |
823 | after_traceset, |
824 | after_trace, |
825 | after_tracefile, |
826 | event, |
827 | event_by_id); |
828 | } |
2a2fa4f0 |
829 | |
27304273 |
830 | /* Subtile modification : |
831 | * if tracefile has no event at or after the time requested, it is not put in |
348c6ba8 |
832 | * the queue, as the next read would fail. |
833 | * |
834 | * Don't forget to empty the traceset pqueue before calling this. |
835 | */ |
8697a616 |
836 | void lttv_process_trace_seek_time(LttvTraceContext *self, LttTime start) |
837 | { |
838 | guint i, nb_tracefile; |
2a2fa4f0 |
839 | |
eed2ef37 |
840 | gint ret; |
841 | |
1986f254 |
842 | LttvTracefileContext **tfc; |
2a2fa4f0 |
843 | |
eed2ef37 |
844 | nb_tracefile = self->tracefiles->len; |
dc877563 |
845 | |
e7f5e89d |
846 | GTree *pqueue = self->ts_context->pqueue; |
847 | |
8697a616 |
848 | for(i = 0 ; i < nb_tracefile ; i++) { |
1986f254 |
849 | tfc = &g_array_index(self->tracefiles, LttvTracefileContext*, i); |
77199e93 |
850 | |
d448fce2 |
851 | g_tree_remove(pqueue, *tfc); |
77199e93 |
852 | |
1986f254 |
853 | ret = ltt_tracefile_seek_time((*tfc)->tf, start); |
27304273 |
854 | if(ret == EPERM) g_error("error in lttv_process_trace_seek_time seek"); |
27304273 |
855 | |
856 | if(ret == 0) { /* not ERANGE especially */ |
1986f254 |
857 | (*tfc)->timestamp = ltt_event_time(ltt_tracefile_get_event((*tfc)->tf)); |
e7f5e89d |
858 | g_assert(ltt_time_compare((*tfc)->timestamp, ltt_time_infinite) != 0); |
1986f254 |
859 | g_tree_insert(pqueue, (*tfc), (*tfc)); |
860 | } else { |
861 | (*tfc)->timestamp = ltt_time_infinite; |
27304273 |
862 | } |
8697a616 |
863 | } |
e7f5e89d |
864 | #ifdef DEBUG |
865 | test_time.tv_sec = 0; |
866 | test_time.tv_nsec = 0; |
867 | g_debug("test tree after seek_time"); |
868 | g_tree_foreach(pqueue, test_tree, NULL); |
869 | #endif //DEBUG |
870 | |
871 | |
872 | |
8697a616 |
873 | } |
dc877563 |
874 | |
2a2fa4f0 |
875 | |
8697a616 |
876 | void lttv_process_traceset_seek_time(LttvTracesetContext *self, LttTime start) |
877 | { |
878 | guint i, nb_trace; |
2a2fa4f0 |
879 | |
8697a616 |
880 | LttvTraceContext *tc; |
2a2fa4f0 |
881 | |
d448fce2 |
882 | //g_tree_destroy(self->pqueue); |
883 | //self->pqueue = g_tree_new(compare_tracefile); |
348c6ba8 |
884 | |
8697a616 |
885 | nb_trace = lttv_traceset_number(self->ts); |
886 | for(i = 0 ; i < nb_trace ; i++) { |
887 | tc = self->traces[i]; |
888 | lttv_process_trace_seek_time(tc, start); |
889 | } |
dc877563 |
890 | } |
b445142a |
891 | |
308711e5 |
892 | |
8697a616 |
893 | gboolean lttv_process_traceset_seek_position(LttvTracesetContext *self, |
894 | const LttvTracesetContextPosition *pos) |
308711e5 |
895 | { |
27304273 |
896 | guint i; |
d448fce2 |
897 | /* If a position is set, seek the traceset to this position */ |
18c87975 |
898 | if(ltt_time_compare(pos->timestamp, ltt_time_infinite) != 0) { |
d448fce2 |
899 | |
900 | /* Test to see if the traces has been added to the trace set : |
901 | * It should NEVER happen. Clear all positions if a new trace comes in. */ |
902 | /* FIXME I know this test is not optimal : should keep a number of |
903 | * tracefiles variable in the traceset.. eventually */ |
904 | guint num_traces = lttv_traceset_number(self->ts); |
905 | guint tf_count = 0; |
906 | for(i=0; i<num_traces;i++) { |
907 | GArray * tracefiles = self->traces[i]->tracefiles; |
908 | guint j; |
909 | guint num_tracefiles = tracefiles->len; |
910 | for(j=0;j<num_tracefiles;j++) |
911 | tf_count++; |
912 | } |
913 | g_assert(tf_count == pos->tfcp->len); |
914 | |
915 | |
916 | //g_tree_destroy(self->pqueue); |
917 | //self->pqueue = g_tree_new(compare_tracefile); |
18c87975 |
918 | |
9ba3aaaf |
919 | for(i=0;i<pos->tfcp->len; i++) { |
920 | LttvTracefileContextPosition *tfcp = |
921 | &g_array_index(pos->tfcp, LttvTracefileContextPosition, i); |
d448fce2 |
922 | |
923 | g_tree_remove(self->pqueue, tfcp->tfc); |
9ba3aaaf |
924 | |
925 | if(tfcp->used == TRUE) { |
926 | if(ltt_tracefile_seek_position(tfcp->tfc->tf, tfcp->event) != 0) |
18c87975 |
927 | return 1; |
9ba3aaaf |
928 | tfcp->tfc->timestamp = |
929 | ltt_event_time(ltt_tracefile_get_event(tfcp->tfc->tf)); |
930 | g_assert(ltt_time_compare(tfcp->tfc->timestamp, |
931 | ltt_time_infinite) != 0); |
932 | g_tree_insert(self->pqueue, tfcp->tfc, tfcp->tfc); |
933 | |
18c87975 |
934 | } else { |
9ba3aaaf |
935 | tfcp->tfc->timestamp = ltt_time_infinite; |
18c87975 |
936 | } |
1986f254 |
937 | } |
308711e5 |
938 | } |
e7f5e89d |
939 | #ifdef DEBUG |
940 | test_time.tv_sec = 0; |
941 | test_time.tv_nsec = 0; |
942 | g_debug("test tree after seek_position"); |
943 | g_tree_foreach(self->pqueue, test_tree, NULL); |
944 | #endif //DEBUG |
945 | |
946 | |
947 | |
2c82c4dc |
948 | return 0; |
308711e5 |
949 | } |
950 | |
951 | |
8697a616 |
952 | |
b445142a |
953 | static LttField * |
eed2ef37 |
954 | find_field(LttEventType *et, const GQuark field) |
b445142a |
955 | { |
eed2ef37 |
956 | GQuark name; |
b445142a |
957 | |
eed2ef37 |
958 | if(field == 0) return NULL; |
959 | |
41b471e6 |
960 | return ltt_eventtype_field_by_name(et, field); |
b445142a |
961 | } |
962 | |
eed2ef37 |
963 | LttvTraceHookByFacility *lttv_trace_hook_get_fac(LttvTraceHook *th, |
964 | guint facility_id) |
965 | { |
966 | return &g_array_index(th->fac_index, LttvTraceHookByFacility, facility_id); |
967 | } |
968 | |
969 | /* Get the first facility corresponding to the name. As the types must be |
970 | * compatible, it is relevant to use the field name and sizes of the first |
971 | * facility to create data structures and assume the data will be compatible |
972 | * thorough the trace */ |
973 | LttvTraceHookByFacility *lttv_trace_hook_get_first(LttvTraceHook *th) |
974 | { |
975 | g_assert(th->fac_list->len > 0); |
976 | return g_array_index(th->fac_list, LttvTraceHookByFacility*, 0); |
977 | } |
978 | |
b445142a |
979 | |
eed2ef37 |
980 | /* Returns 0 on success, -1 if fails. */ |
981 | gint |
982 | lttv_trace_find_hook(LttTrace *t, GQuark facility, GQuark event, |
2c82c4dc |
983 | GQuark field1, GQuark field2, GQuark field3, LttvHook h, gpointer hook_data, |
984 | LttvTraceHook *th) |
b445142a |
985 | { |
986 | LttFacility *f; |
987 | |
eed2ef37 |
988 | LttEventType *et, *first_et; |
989 | |
990 | GArray *facilities; |
991 | |
d052ffc3 |
992 | guint i, fac_id, ev_id; |
b445142a |
993 | |
eed2ef37 |
994 | LttvTraceHookByFacility *thf, *first_thf; |
b445142a |
995 | |
eed2ef37 |
996 | facilities = ltt_trace_facility_get_by_name(t, facility); |
021eeb41 |
997 | |
eed2ef37 |
998 | if(unlikely(facilities == NULL)) goto facility_error; |
999 | |
1000 | th->fac_index = g_array_sized_new(FALSE, TRUE, |
1001 | sizeof(LttvTraceHookByFacility), |
1002 | NUM_FACILITIES); |
1003 | th->fac_index = g_array_set_size(th->fac_index, NUM_FACILITIES); |
b445142a |
1004 | |
eed2ef37 |
1005 | th->fac_list = g_array_sized_new(FALSE, TRUE, |
1006 | sizeof(LttvTraceHookByFacility*), |
1007 | facilities->len); |
1008 | th->fac_list = g_array_set_size(th->fac_list, facilities->len); |
1009 | |
1010 | fac_id = g_array_index(facilities, guint, 0); |
1011 | f = ltt_trace_get_facility_by_num(t, fac_id); |
1012 | |
cb03932a |
1013 | et = ltt_facility_eventtype_get_by_name(f, event); |
eed2ef37 |
1014 | if(unlikely(et == NULL)) goto event_error; |
1015 | |
1016 | thf = &g_array_index(th->fac_index, LttvTraceHookByFacility, fac_id); |
1986f254 |
1017 | g_array_index(th->fac_list, LttvTraceHookByFacility*, 0) = thf; |
9d239bd9 |
1018 | |
d052ffc3 |
1019 | ev_id = ltt_eventtype_id(et); |
1020 | |
eed2ef37 |
1021 | thf->h = h; |
d052ffc3 |
1022 | thf->id = GET_HOOK_ID(fac_id, ev_id); |
eed2ef37 |
1023 | thf->f1 = find_field(et, field1); |
1024 | thf->f2 = find_field(et, field2); |
1025 | thf->f3 = find_field(et, field3); |
2c82c4dc |
1026 | thf->hook_data = hook_data; |
eed2ef37 |
1027 | |
1028 | first_thf = thf; |
826f1ab2 |
1029 | first_et = et; |
eed2ef37 |
1030 | |
1031 | /* Check for type compatibility too */ |
1032 | for(i=1;i<facilities->len;i++) { |
1033 | fac_id = g_array_index(facilities, guint, i); |
1034 | f = ltt_trace_get_facility_by_num(t, fac_id); |
1035 | |
f4b88a7d |
1036 | et = ltt_facility_eventtype_get_by_name(f, event); |
eed2ef37 |
1037 | if(unlikely(et == NULL)) goto event_error; |
1038 | |
1039 | thf = &g_array_index(th->fac_index, LttvTraceHookByFacility, fac_id); |
1986f254 |
1040 | g_array_index(th->fac_list, LttvTraceHookByFacility*, i) = thf; |
d052ffc3 |
1041 | ev_id = ltt_eventtype_id(et); |
eed2ef37 |
1042 | thf->h = h; |
d052ffc3 |
1043 | thf->id = GET_HOOK_ID(fac_id, ev_id); |
eed2ef37 |
1044 | thf->f1 = find_field(et, field1); |
1045 | if(check_fields_compatibility(first_et, et, |
1046 | first_thf->f1, thf->f1)) |
1047 | goto type_error; |
1048 | |
1049 | thf->f2 = find_field(et, field2); |
1050 | if(check_fields_compatibility(first_et, et, |
1051 | first_thf->f2, thf->f2)) |
1052 | goto type_error; |
1053 | |
1054 | thf->f3 = find_field(et, field3); |
1055 | if(check_fields_compatibility(first_et, et, |
1056 | first_thf->f3, thf->f3)) |
1057 | goto type_error; |
2c82c4dc |
1058 | thf->hook_data = hook_data; |
eed2ef37 |
1059 | } |
1060 | |
1061 | return 0; |
1062 | |
1063 | type_error: |
1064 | goto free; |
1065 | event_error: |
f4b88a7d |
1066 | g_error("Event type does not exist for event %s", |
1067 | g_quark_to_string(event)); |
eed2ef37 |
1068 | goto free; |
1069 | facility_error: |
1070 | g_error("No %s facility", g_quark_to_string(facility)); |
1071 | goto free; |
1072 | free: |
1073 | g_array_free(th->fac_index, TRUE); |
1074 | g_array_free(th->fac_list, TRUE); |
1075 | th->fac_index = NULL; |
1076 | th->fac_list = NULL; |
1077 | return -1; |
1078 | } |
1079 | |
1080 | void lttv_trace_hook_destroy(LttvTraceHook *th) |
1081 | { |
1082 | g_array_free(th->fac_index, TRUE); |
1083 | g_array_free(th->fac_list, TRUE); |
b445142a |
1084 | } |
1085 | |
1086 | |
9ba3aaaf |
1087 | |
1088 | |
1089 | LttvTracesetContextPosition *lttv_traceset_context_position_new( |
1090 | const LttvTracesetContext *self) |
5e2c04a2 |
1091 | { |
9ba3aaaf |
1092 | guint num_traces = lttv_traceset_number(self->ts); |
1093 | guint tf_count = 0; |
1094 | guint i; |
1095 | |
1096 | for(i=0; i<num_traces;i++) { |
1097 | GArray * tracefiles = self->traces[i]->tracefiles; |
1098 | guint j; |
1099 | guint num_tracefiles = tracefiles->len; |
1100 | for(j=0;j<num_tracefiles;j++) |
1101 | tf_count++; |
1102 | } |
1103 | LttvTracesetContextPosition *pos = |
1104 | g_new(LttvTracesetContextPosition, 1); |
1105 | pos->tfcp = g_array_sized_new(FALSE, TRUE, |
1106 | sizeof(LttvTracefileContextPosition), |
1107 | tf_count); |
1108 | g_array_set_size(pos->tfcp, tf_count); |
1109 | for(i=0;i<pos->tfcp->len;i++) { |
1110 | LttvTracefileContextPosition *tfcp = |
1111 | &g_array_index(pos->tfcp, LttvTracefileContextPosition, i); |
1112 | tfcp->event = ltt_event_position_new(); |
1113 | } |
1114 | |
27304273 |
1115 | pos->timestamp = ltt_time_infinite; |
1116 | return pos; |
5e2c04a2 |
1117 | } |
1118 | |
3054461a |
1119 | /* Save all positions, the ones with infinite time will have NULL |
1986f254 |
1120 | * ep. */ |
9ba3aaaf |
1121 | /* note : a position must be destroyed when a trace is added/removed from a |
1122 | * traceset */ |
27304273 |
1123 | void lttv_traceset_context_position_save(const LttvTracesetContext *self, |
1124 | LttvTracesetContextPosition *pos) |
1125 | { |
1986f254 |
1126 | guint i; |
1127 | guint num_traces = lttv_traceset_number(self->ts); |
9ba3aaaf |
1128 | guint tf_count = 0; |
728d0c3e |
1129 | |
0bd2f89c |
1130 | pos->timestamp = ltt_time_infinite; |
728d0c3e |
1131 | |
1986f254 |
1132 | for(i=0; i<num_traces;i++) { |
1133 | GArray * tracefiles = self->traces[i]->tracefiles; |
1134 | guint j; |
1135 | guint num_tracefiles = tracefiles->len; |
1136 | |
1137 | for(j=0;j<num_tracefiles;j++) { |
9ba3aaaf |
1138 | g_assert(tf_count < pos->tfcp->len); |
1986f254 |
1139 | LttvTracefileContext **tfc = &g_array_index(tracefiles, |
1140 | LttvTracefileContext*, j); |
9ba3aaaf |
1141 | LttvTracefileContextPosition *tfcp = |
1142 | &g_array_index(pos->tfcp, LttvTracefileContextPosition, tf_count); |
1986f254 |
1143 | |
9ba3aaaf |
1144 | tfcp->tfc = *tfc; |
1986f254 |
1145 | |
1146 | if(ltt_time_compare((*tfc)->timestamp, ltt_time_infinite) != 0) { |
9ba3aaaf |
1147 | LttEvent *event = ltt_tracefile_get_event((*tfc)->tf); |
1148 | ltt_event_position(event, tfcp->event); |
1986f254 |
1149 | if(ltt_time_compare((*tfc)->timestamp, pos->timestamp) < 0) |
1150 | pos->timestamp = (*tfc)->timestamp; |
9ba3aaaf |
1151 | tfcp->used = TRUE; |
1986f254 |
1152 | } else { |
9ba3aaaf |
1153 | tfcp->used = FALSE; |
1986f254 |
1154 | } |
9ba3aaaf |
1155 | |
1156 | //g_array_append_val(pos->tfc, *tfc); |
1157 | //g_array_append_val(pos->ep, ep); |
1158 | tf_count++; |
1986f254 |
1159 | } |
1160 | |
1161 | } |
8697a616 |
1162 | } |
1163 | |
1164 | void lttv_traceset_context_position_destroy(LttvTracesetContextPosition *pos) |
1165 | { |
27304273 |
1166 | int i; |
1986f254 |
1167 | |
9ba3aaaf |
1168 | for(i=0;i<pos->tfcp->len;i++) { |
1169 | LttvTracefileContextPosition *tfcp = |
1170 | &g_array_index(pos->tfcp, LttvTracefileContextPosition, i); |
1171 | g_free(tfcp->event); |
1172 | tfcp->event = NULL; |
1173 | tfcp->used = FALSE; |
1986f254 |
1174 | } |
9ba3aaaf |
1175 | g_array_free(pos->tfcp, TRUE); |
27304273 |
1176 | g_free(pos); |
8697a616 |
1177 | } |
1178 | |
5e2c04a2 |
1179 | void lttv_traceset_context_position_copy(LttvTracesetContextPosition *dest, |
1180 | const LttvTracesetContextPosition *src) |
1181 | { |
27304273 |
1182 | int i; |
9ba3aaaf |
1183 | LttvTracefileContextPosition *src_tfcp, *dest_tfcp; |
5e2c04a2 |
1184 | |
9ba3aaaf |
1185 | g_assert(src->tfcp->len == src->tfcp->len); |
27304273 |
1186 | |
9ba3aaaf |
1187 | for(i=0;i<src->tfcp->len;i++) { |
1188 | src_tfcp = |
1189 | &g_array_index(src->tfcp, LttvTracefileContextPosition, i); |
1190 | dest_tfcp = |
1191 | &g_array_index(dest->tfcp, LttvTracefileContextPosition, i); |
1192 | |
1193 | dest_tfcp->used = src_tfcp->used; |
1194 | dest_tfcp->tfc = src_tfcp->tfc; |
1195 | |
1196 | if(src_tfcp->used) { |
1986f254 |
1197 | ltt_event_position_copy( |
9ba3aaaf |
1198 | dest_tfcp->event, |
1199 | src_tfcp->event); |
1200 | } |
5e2c04a2 |
1201 | } |
5e2c04a2 |
1202 | dest->timestamp = src->timestamp; |
1203 | } |
1204 | |
8697a616 |
1205 | gint lttv_traceset_context_ctx_pos_compare(const LttvTracesetContext *self, |
1206 | const LttvTracesetContextPosition *pos) |
1207 | { |
27304273 |
1208 | int i; |
826f1ab2 |
1209 | int ret = 0; |
2c82c4dc |
1210 | |
9ba3aaaf |
1211 | if(pos->tfcp->len == 0) { |
2c82c4dc |
1212 | if(lttv_traceset_number(self->ts) == 0) return 0; |
1213 | else return 1; |
1214 | } |
1215 | if(lttv_traceset_number(self->ts) == 0) |
1216 | return -1; |
1217 | |
9ba3aaaf |
1218 | for(i=0;i<pos->tfcp->len;i++) { |
1219 | LttvTracefileContextPosition *tfcp = |
1220 | &g_array_index(pos->tfcp, LttvTracefileContextPosition, i); |
1986f254 |
1221 | |
9ba3aaaf |
1222 | if(tfcp->used == FALSE) { |
1223 | if(ltt_time_compare(tfcp->tfc->timestamp, ltt_time_infinite) < 0) { |
1986f254 |
1224 | ret = -1; |
1225 | } |
1226 | } else { |
9ba3aaaf |
1227 | if(ltt_time_compare(tfcp->tfc->timestamp, ltt_time_infinite) == 0) { |
1986f254 |
1228 | ret = 1; |
1229 | } else { |
9ba3aaaf |
1230 | LttEvent *event = ltt_tracefile_get_event(tfcp->tfc->tf); |
8697a616 |
1231 | |
1986f254 |
1232 | ret = ltt_event_position_compare((LttEventPosition*)event, |
9ba3aaaf |
1233 | tfcp->event); |
1986f254 |
1234 | } |
1235 | } |
27304273 |
1236 | if(ret != 0) return ret; |
8697a616 |
1237 | |
8697a616 |
1238 | } |
1239 | return 0; |
1240 | } |
1241 | |
1242 | |
1243 | gint lttv_traceset_context_pos_pos_compare( |
1244 | const LttvTracesetContextPosition *pos1, |
1245 | const LttvTracesetContextPosition *pos2) |
1246 | { |
27304273 |
1247 | int i, j; |
b4aeb12d |
1248 | int ret = 0; |
8697a616 |
1249 | |
565f2491 |
1250 | if(ltt_time_compare(pos1->timestamp, ltt_time_infinite) == 0) { |
1251 | if(ltt_time_compare(pos2->timestamp, ltt_time_infinite) == 0) |
1252 | return 0; |
1253 | else |
1254 | return 1; |
2c82c4dc |
1255 | } |
565f2491 |
1256 | if(ltt_time_compare(pos2->timestamp, ltt_time_infinite) == 0) |
2c82c4dc |
1257 | return -1; |
1258 | |
9ba3aaaf |
1259 | for(i=0;i<pos1->tfcp->len;i++) { |
1260 | LttvTracefileContextPosition *tfcp1 = |
1261 | &g_array_index(pos1->tfcp, LttvTracefileContextPosition, i); |
27304273 |
1262 | |
9ba3aaaf |
1263 | if(tfcp1->used == TRUE) { |
1264 | for(j=0;j<pos2->tfcp->len;j++) { |
1265 | LttvTracefileContextPosition *tfcp2 = |
1266 | &g_array_index(pos2->tfcp, LttvTracefileContextPosition, j); |
1267 | |
1268 | if(tfcp1->tfc == tfcp2->tfc) { |
1269 | if(tfcp2->used == TRUE) |
1270 | ret = ltt_event_position_compare(tfcp1->event, tfcp2->event); |
1986f254 |
1271 | else |
1272 | ret = -1; |
1273 | |
1274 | if(ret != 0) return ret; |
1275 | } |
1276 | } |
9ba3aaaf |
1277 | |
1986f254 |
1278 | } else { |
9ba3aaaf |
1279 | for(j=0;j<pos2->tfcp->len;j++) { |
1280 | LttvTracefileContextPosition *tfcp2 = |
1281 | &g_array_index(pos2->tfcp, LttvTracefileContextPosition, j); |
1282 | |
1283 | if(tfcp1->tfc == tfcp2->tfc) |
1284 | if(tfcp2->used == TRUE) ret = 1; |
1285 | if(ret != 0) return ret; |
27304273 |
1286 | } |
8697a616 |
1287 | } |
1288 | } |
1289 | return 0; |
1290 | } |
1291 | |
1292 | |
2d262115 |
1293 | LttTime lttv_traceset_context_position_get_time( |
1294 | const LttvTracesetContextPosition *pos) |
1295 | { |
1296 | return pos->timestamp; |
1297 | } |
1298 | |
1299 | |
1300 | LttvTracefileContext *lttv_traceset_context_get_current_tfc(LttvTracesetContext *self) |
1301 | { |
1302 | GTree *pqueue = self->pqueue; |
b56b5fec |
1303 | LttvTracefileContext *tfc = NULL; |
2d262115 |
1304 | |
1305 | g_tree_foreach(pqueue, get_first, &tfc); |
1306 | |
1307 | return tfc; |
1308 | } |
18c87975 |
1309 | |
2c82c4dc |
1310 | /* lttv_process_traceset_synchronize_tracefiles |
1311 | * |
1312 | * Use the sync_position field of the trace set context to synchronize each |
1313 | * tracefile with the previously saved position. |
1314 | * |
1315 | * If no previous position has been saved, it simply does nothing. |
1316 | */ |
1317 | void lttv_process_traceset_synchronize_tracefiles(LttvTracesetContext *tsc) |
1318 | { |
1319 | g_assert(lttv_process_traceset_seek_position(tsc, tsc->sync_position) == 0); |
1320 | } |
1321 | |
1322 | |
1323 | |
1324 | |
1325 | void lttv_process_traceset_get_sync_data(LttvTracesetContext *tsc) |
1326 | { |
1327 | lttv_traceset_context_position_save(tsc, tsc->sync_position); |
1328 | } |
1329 | |
0bd2f89c |
1330 | struct seek_back_data { |
1331 | guint first_event; /* Index of the first event in the array : we will always |
1332 | overwrite at this position : this is a circular array. |
1333 | */ |
1334 | guint events_found; |
33e44b82 |
1335 | guint n; /* number of events requested */ |
0bd2f89c |
1336 | GPtrArray *array; /* array of LttvTracesetContextPositions pointers */ |
33e44b82 |
1337 | LttvFilter *filter; |
0bd2f89c |
1338 | }; |
1339 | |
1340 | static gint seek_back_event_hook(void *hook_data, void* call_data) |
1341 | { |
1342 | struct seek_back_data *sd = (struct seek_back_data*)hook_data; |
1343 | LttvTracefileContext *tfc = (LttvTracefileContext*)call_data; |
1344 | LttvTracesetContext *tsc = tfc->t_context->ts_context; |
1345 | LttvTracesetContextPosition *pos; |
33e44b82 |
1346 | |
bd4c3eca |
1347 | if(sd->filter != NULL && sd->filter->head != NULL) { |
33e44b82 |
1348 | if(!lttv_filter_tree_parse(sd->filter->head, |
1349 | ltt_tracefile_get_event(tfc->tf), |
1350 | tfc->tf, |
1351 | tfc->t_context->t, |
1352 | tfc)) |
1353 | return FALSE; |
0bd2f89c |
1354 | } |
33e44b82 |
1355 | |
1356 | pos = (LttvTracesetContextPosition*)g_ptr_array_index (sd->array, |
1357 | sd->first_event); |
0bd2f89c |
1358 | |
1359 | lttv_traceset_context_position_save(tsc, pos); |
1360 | |
1361 | if(sd->first_event >= sd->array->len - 1) sd->first_event = 0; |
1362 | else sd->first_event++; |
1363 | |
33e44b82 |
1364 | sd->events_found = min(sd->n, sd->events_found + 1); |
0bd2f89c |
1365 | |
1366 | return FALSE; |
1367 | } |
1368 | |
0bd2f89c |
1369 | /* Seek back n events back from the current position. |
1370 | * |
1371 | * Parameters : |
1372 | * @self The trace set context |
1373 | * @n number of events to jump over |
9ba3aaaf |
1374 | * @first_offset The initial offset value used. |
33e44b82 |
1375 | * never put first_offset at ltt_time_zero. |
1376 | * @time_seeker Function pointer of the function to use to seek time : |
1377 | * either lttv_process_traceset_seek_time |
1378 | * or lttv_state_traceset_seek_time_closest |
1379 | * @filter The filter to call. |
0bd2f89c |
1380 | * |
1381 | * Return value : the number of events found (might be lower than the number |
1382 | * requested if beginning of traceset is reached). |
1383 | * |
1384 | * The first search will go back first_offset and try to find the last n events |
1385 | * matching the filter. If there are not enough, it will try to go back from the |
1386 | * new trace point from first_offset*2, and so on, until beginning of trace or n |
1387 | * events are found. |
1388 | * |
1389 | * Note : this function does not take in account the LttvFilter : use the |
1390 | * similar function found in state.c instead. |
1391 | * |
1392 | * Note2 : the caller must make sure that the LttvTracesetContext does not |
1393 | * contain any hook, as process_traceset_middle is used in this routine. |
1394 | */ |
1395 | guint lttv_process_traceset_seek_n_backward(LttvTracesetContext *self, |
33e44b82 |
1396 | guint n, LttTime first_offset, |
1397 | seek_time_fct time_seeker, |
1398 | LttvFilter *filter) |
0bd2f89c |
1399 | { |
33e44b82 |
1400 | if(lttv_traceset_number(self->ts) == 0) return 0; |
1401 | g_assert(ltt_time_compare(first_offset, ltt_time_zero) != 0); |
1402 | |
0bd2f89c |
1403 | guint i; |
1404 | LttvTracesetContextPosition *next_iter_end_pos = |
9ba3aaaf |
1405 | lttv_traceset_context_position_new(self); |
1406 | LttvTracesetContextPosition *end_pos = |
1407 | lttv_traceset_context_position_new(self); |
1408 | LttvTracesetContextPosition *saved_pos = |
1409 | lttv_traceset_context_position_new(self); |
0bd2f89c |
1410 | LttTime time; |
9d227699 |
1411 | LttTime asked_time; |
0bd2f89c |
1412 | LttTime time_offset; |
1413 | struct seek_back_data sd; |
1414 | LttvHooks *hooks = lttv_hooks_new(); |
1415 | |
1416 | sd.first_event = 0; |
1417 | sd.events_found = 0; |
1418 | sd.array = g_ptr_array_sized_new(n); |
33e44b82 |
1419 | sd.filter = filter; |
1420 | sd.n = n; |
0bd2f89c |
1421 | g_ptr_array_set_size(sd.array, n); |
1422 | for(i=0;i<n;i++) { |
9ba3aaaf |
1423 | g_ptr_array_index (sd.array, i) = lttv_traceset_context_position_new(self); |
0bd2f89c |
1424 | } |
33e44b82 |
1425 | |
0bd2f89c |
1426 | lttv_traceset_context_position_save(self, next_iter_end_pos); |
33e44b82 |
1427 | lttv_traceset_context_position_save(self, saved_pos); |
0bd2f89c |
1428 | /* Get the current time from which we will offset */ |
1429 | time = lttv_traceset_context_position_get_time(next_iter_end_pos); |
1430 | /* the position saved might be end of traceset... */ |
1431 | if(ltt_time_compare(time, self->time_span.end_time) > 0) { |
1432 | time = self->time_span.end_time; |
1433 | } |
9d227699 |
1434 | asked_time = time; |
0bd2f89c |
1435 | time_offset = first_offset; |
1436 | |
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 | /* stop criteria : - n events found |
9d227699 |
1443 | * - asked_time < beginning of trace */ |
1444 | if(ltt_time_compare(asked_time, self->time_span.start_time) < 0) break; |
0bd2f89c |
1445 | |
1446 | lttv_traceset_context_position_copy(end_pos, next_iter_end_pos); |
1447 | |
1448 | /* We must seek the traceset back to time - time_offset */ |
1449 | /* this time becomes the new reference time */ |
1450 | time = ltt_time_sub(time, time_offset); |
9d227699 |
1451 | asked_time = time; |
0bd2f89c |
1452 | |
33e44b82 |
1453 | time_seeker(self, time); |
0bd2f89c |
1454 | lttv_traceset_context_position_save(self, next_iter_end_pos); |
33e44b82 |
1455 | /* Resync the time in case of a seek_closest */ |
1456 | time = lttv_traceset_context_position_get_time(next_iter_end_pos); |
1457 | if(ltt_time_compare(time, self->time_span.end_time) > 0) { |
1458 | time = self->time_span.end_time; |
1459 | } |
0bd2f89c |
1460 | |
1461 | /* Process the traceset, calling a hook which adds events |
1462 | * to the array, overwriting the tail. It changes first_event and |
1463 | * events_found too. */ |
1464 | /* We would like to have a clean context here : no other hook than our's */ |
1465 | |
1466 | lttv_process_traceset_middle(self, ltt_time_infinite, |
1467 | G_MAXUINT, end_pos); |
1468 | |
33e44b82 |
1469 | if(sd.events_found < n) { |
1470 | if(sd.first_event > 0) { |
1471 | /* Save the first position */ |
1472 | LttvTracesetContextPosition *pos = |
1473 | (LttvTracesetContextPosition*)g_ptr_array_index (sd.array, 0); |
1474 | lttv_traceset_context_position_copy(saved_pos, pos); |
1475 | } |
1476 | g_assert(n-sd.events_found <= sd.array->len); |
1477 | /* Change array size to n - events_found */ |
1478 | for(i=n-sd.events_found;i<sd.array->len;i++) { |
1479 | LttvTracesetContextPosition *pos = |
1480 | (LttvTracesetContextPosition*)g_ptr_array_index (sd.array, i); |
1481 | lttv_traceset_context_position_destroy(pos); |
1482 | } |
1483 | g_ptr_array_set_size(sd.array, n-sd.events_found); |
1484 | sd.first_event = 0; |
1485 | |
1486 | } else break; /* Second end criterion : n events found */ |
1487 | |
0bd2f89c |
1488 | time_offset = ltt_time_mul(time_offset, BACKWARD_SEEK_MUL); |
1489 | } |
1490 | |
1491 | lttv_traceset_context_position_destroy(end_pos); |
1492 | lttv_traceset_context_position_destroy(next_iter_end_pos); |
1493 | |
1494 | lttv_process_traceset_end(self, NULL, NULL, NULL, hooks, NULL); |
1495 | |
33e44b82 |
1496 | if(sd.events_found >= n) { |
0bd2f89c |
1497 | /* Seek the traceset to the first event in the circular array */ |
1498 | LttvTracesetContextPosition *pos = |
1499 | (LttvTracesetContextPosition*)g_ptr_array_index (sd.array, |
1500 | sd.first_event); |
1501 | g_assert(lttv_process_traceset_seek_position(self, pos) == 0); |
33e44b82 |
1502 | } else { |
1503 | /* Will seek to the last saved position : in the worst case, it will be the |
1504 | * original position (if events_found is 0) */ |
1505 | g_assert(lttv_process_traceset_seek_position(self, saved_pos) == 0); |
0bd2f89c |
1506 | } |
1507 | |
33e44b82 |
1508 | for(i=0;i<sd.array->len;i++) { |
0bd2f89c |
1509 | LttvTracesetContextPosition *pos = |
1510 | (LttvTracesetContextPosition*)g_ptr_array_index (sd.array, i); |
1511 | lttv_traceset_context_position_destroy(pos); |
1512 | } |
1513 | g_ptr_array_free(sd.array, TRUE); |
1514 | |
1515 | lttv_hooks_destroy(hooks); |
1516 | |
33e44b82 |
1517 | lttv_traceset_context_position_destroy(saved_pos); |
1518 | |
0bd2f89c |
1519 | return sd.events_found; |
1520 | } |
1521 | |
1522 | |
1523 | struct seek_forward_data { |
1524 | guint event_count; /* event counter */ |
1525 | guint n; /* requested number of events to jump over */ |
33e44b82 |
1526 | LttvFilter *filter; |
0bd2f89c |
1527 | }; |
1528 | |
1529 | static gint seek_forward_event_hook(void *hook_data, void* call_data) |
1530 | { |
1531 | struct seek_forward_data *sd = (struct seek_forward_data*)hook_data; |
33e44b82 |
1532 | LttvTracefileContext *tfc = (LttvTracefileContext*)call_data; |
0bd2f89c |
1533 | |
aaecaa99 |
1534 | if(sd->filter == NULL || lttv_filter_tree_parse(sd->filter->head, |
33e44b82 |
1535 | ltt_tracefile_get_event(tfc->tf), |
1536 | tfc->tf, |
1537 | tfc->t_context->t, |
aaecaa99 |
1538 | tfc)) { |
1fae3dd3 |
1539 | sd->event_count++; |
aaecaa99 |
1540 | if(sd->event_count >= sd->n) |
1541 | return TRUE; |
1fae3dd3 |
1542 | } |
aaecaa99 |
1543 | return FALSE; |
0bd2f89c |
1544 | } |
1545 | |
aaecaa99 |
1546 | /* Seek back n events forward from the current position (1 to n) |
1547 | * 0 is ok too, but it will actually do nothing. |
0bd2f89c |
1548 | * |
1549 | * Parameters : |
33e44b82 |
1550 | * @self the trace set context |
1551 | * @n number of events to jump over |
1552 | * @filter filter to call. |
0bd2f89c |
1553 | * |
1554 | * returns : the number of events jumped over (may be less than requested if end |
1555 | * of traceset reached) */ |
1556 | guint lttv_process_traceset_seek_n_forward(LttvTracesetContext *self, |
33e44b82 |
1557 | guint n, LttvFilter *filter) |
0bd2f89c |
1558 | { |
1559 | struct seek_forward_data sd; |
1560 | sd.event_count = 0; |
1561 | sd.n = n; |
33e44b82 |
1562 | sd.filter = filter; |
aaecaa99 |
1563 | |
1564 | if(sd.event_count >= sd.n) return sd.event_count; |
1565 | |
0bd2f89c |
1566 | LttvHooks *hooks = lttv_hooks_new(); |
1567 | |
1568 | lttv_hooks_add(hooks, seek_forward_event_hook, &sd, LTTV_PRIO_DEFAULT); |
1569 | |
1570 | lttv_process_traceset_begin(self, NULL, NULL, NULL, hooks, NULL); |
1571 | |
1572 | /* it will end on the end of traceset, or the fact that the |
aaecaa99 |
1573 | * hook returns TRUE. |
0bd2f89c |
1574 | */ |
1575 | lttv_process_traceset_middle(self, ltt_time_infinite, |
1576 | G_MAXUINT, NULL); |
1577 | |
1578 | /* Here, our position is either the end of traceset, or the exact position |
aaecaa99 |
1579 | * after n events : leave it like this. This might be placed on an event that |
1580 | * will be filtered out, we don't care : all we know is that the following |
1581 | * event filtered in will be the right one. */ |
0bd2f89c |
1582 | |
1583 | lttv_process_traceset_end(self, NULL, NULL, NULL, hooks, NULL); |
1584 | |
1585 | lttv_hooks_destroy(hooks); |
1586 | |
1587 | return sd.event_count; |
1588 | } |
1589 | |
1590 | |