a1a2b649 |
1 | /* This file is part of the Linux Trace Toolkit Graphic User Interface |
2 | * Copyright (C) 2003-2004 Mathieu Desnoyers |
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 | |
19 | /* This file is the API used to launch any background computation on a trace */ |
20 | |
21 | /* Here is the implementation of the API */ |
22 | |
0fdb8bb0 |
23 | #include <sys/types.h> |
24 | #include <sys/stat.h> |
25 | #include <unistd.h> |
26 | |
a1a2b649 |
27 | #include <ltt/time.h> |
28 | #include <ltt/trace.h> |
29 | #include <glib.h> |
30 | #include <lttv/lttv.h> |
31 | #include <lttv/traceset.h> |
32 | #include <lttv/attribute.h> |
33 | #include <lttv/tracecontext.h> |
34 | #include <lttvwindow/lttvwindowtraces.h> |
8bc02ec8 |
35 | #include <lttvwindow/lttvwindow.h> // for CHUNK_NUM_EVENTS |
a1a2b649 |
36 | |
37 | |
38 | typedef struct _BackgroundRequest { |
39 | LttvAttributeName module_name; /* Hook path in global attributes, |
40 | where all standard hooks under computation/. |
41 | i.e. modulename */ |
42 | LttvTrace *trace; /* trace concerned */ |
43 | } BackgroundRequest; |
44 | |
45 | typedef struct _BackgroundNotify { |
46 | gpointer owner; |
47 | LttvTrace *trace; /* trace */ |
48 | LttTime notify_time; |
49 | LttvTracesetContextPosition *notify_position; |
50 | LttvHooks *notify; /* Hook to call when the notify is |
51 | passed, or at the end of trace */ |
52 | } BackgroundNotify; |
53 | |
54 | |
55 | |
313bd6fc |
56 | /* Prototypes */ |
57 | gboolean lttvwindowtraces_process_pending_requests(LttvTrace *trace); |
58 | |
a1a2b649 |
59 | /* Get a trace by its path name. |
60 | * |
61 | * @param path path of the trace on the virtual file system. |
62 | * @return Pointer to trace if found |
63 | * NULL is returned if the trace is not present |
64 | */ |
65 | |
66 | LttvTrace *lttvwindowtraces_get_trace_by_name(gchar *path) |
67 | { |
68 | LttvAttribute *attribute = lttv_global_attributes(); |
69 | guint i; |
70 | |
71 | for(i=0;i<lttvwindowtraces_get_number();i++) { |
72 | LttvTrace *trace_v = lttvwindowtraces_get_trace(i); |
73 | LttTrace *trace; |
74 | gchar *name; |
a1a2b649 |
75 | g_assert(trace_v != NULL); |
76 | |
77 | trace = lttv_trace(trace_v); |
78 | g_assert(trace != NULL); |
79 | name = ltt_trace_name(trace); |
80 | |
81 | if(strcmp(name, path) == 0) { |
82 | /* Found */ |
83 | return trace_v; |
84 | } |
85 | } |
86 | |
87 | return NULL; |
88 | } |
89 | |
90 | /* Get a trace by its number identifier */ |
91 | |
92 | LttvTrace *lttvwindowtraces_get_trace(guint num) |
93 | { |
94 | LttvAttribute *g_attribute = lttv_global_attributes(); |
95 | LttvAttribute *attribute; |
96 | LttvAttributeType type; |
97 | LttvAttributeName name; |
98 | LttvAttributeValue value; |
99 | |
100 | g_assert(attribute = |
101 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
102 | LTTV_TRACES))); |
103 | |
104 | type = lttv_iattribute_get(LTTV_IATTRIBUTE(attribute), num, &name, &value); |
105 | |
106 | if(type == LTTV_POINTER) { |
107 | return (LttvTrace *)*(value.v_pointer); |
108 | } |
109 | |
110 | return NULL; |
111 | } |
112 | |
113 | /* Total number of traces */ |
114 | |
115 | guint lttvwindowtraces_get_number() |
116 | { |
117 | LttvAttribute *g_attribute = lttv_global_attributes(); |
118 | LttvAttribute *attribute; |
119 | LttvAttributeValue value; |
120 | |
121 | g_assert(attribute = |
122 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
123 | LTTV_TRACES))); |
124 | |
125 | return ( lttv_iattribute_get_number(LTTV_IATTRIBUTE(attribute)) ); |
126 | } |
127 | |
128 | /* Add a trace to the global attributes */ |
129 | |
130 | void lttvwindowtraces_add_trace(LttvTrace *trace) |
131 | { |
132 | LttvAttribute *g_attribute = lttv_global_attributes(); |
133 | LttvAttribute *attribute; |
134 | LttvAttributeValue value; |
135 | guint num; |
0fdb8bb0 |
136 | struct stat buf; |
137 | gchar attribute_path[PATH_MAX]; |
a1a2b649 |
138 | |
0fdb8bb0 |
139 | if(stat(ltt_trace_name(lttv_trace(trace)), &buf)) { |
140 | g_warning("lttvwindowtraces_add_trace: Trace %s not found", |
141 | ltt_trace_name(lttv_trace(trace))); |
142 | return; |
143 | } |
144 | g_assert( |
145 | snprintf(attribute_path, PATH_MAX, "%lu:%lu", buf.st_dev, buf.st_ino) >= 0); |
146 | |
a1a2b649 |
147 | g_assert(attribute = |
148 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
149 | LTTV_TRACES))); |
0fdb8bb0 |
150 | |
a1a2b649 |
151 | value = lttv_attribute_add(attribute, |
0fdb8bb0 |
152 | g_quark_from_string(attribute_path), |
a1a2b649 |
153 | LTTV_POINTER); |
154 | |
155 | *(value.v_pointer) = (gpointer)trace; |
8bc02ec8 |
156 | |
157 | /* create new traceset and tracesetcontext */ |
158 | LttvTraceset *ts; |
313bd6fc |
159 | LttvTracesetStats *tss; |
8bc02ec8 |
160 | |
161 | attribute = lttv_trace_attribute(trace); |
162 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
163 | LTTV_COMPUTATION_TRACESET, |
164 | LTTV_POINTER, |
165 | &value)); |
166 | ts = lttv_traceset_new(); |
167 | *(value.v_pointer) = ts; |
168 | |
169 | lttv_traceset_add(ts,trace); |
170 | |
171 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
172 | LTTV_COMPUTATION_TRACESET_CONTEXT, |
173 | LTTV_POINTER, |
174 | &value)); |
313bd6fc |
175 | tss = g_object_new(LTTV_TRACESET_STATS_TYPE, NULL); |
176 | *(value.v_pointer) = tss; |
8bc02ec8 |
177 | |
313bd6fc |
178 | lttv_context_init(LTTV_TRACESET_CONTEXT(tss), ts); |
8bc02ec8 |
179 | |
180 | value = lttv_attribute_add(attribute, |
181 | LTTV_REQUESTS_QUEUE, |
182 | LTTV_POINTER); |
183 | |
184 | value = lttv_attribute_add(attribute, |
185 | LTTV_REQUESTS_CURRENT, |
186 | LTTV_POINTER); |
187 | |
188 | value = lttv_attribute_add(attribute, |
189 | LTTV_NOTIFY_QUEUE, |
190 | LTTV_POINTER); |
191 | |
192 | value = lttv_attribute_add(attribute, |
193 | LTTV_NOTIFY_CURRENT, |
194 | LTTV_POINTER); |
195 | |
a1a2b649 |
196 | } |
197 | |
198 | /* Remove a trace from the global attributes */ |
199 | |
200 | void lttvwindowtraces_remove_trace(LttvTrace *trace) |
201 | { |
202 | LttvAttribute *g_attribute = lttv_global_attributes(); |
203 | LttvAttribute *attribute; |
204 | LttvAttributeValue value; |
205 | guint i; |
206 | |
207 | g_assert(attribute = |
208 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
209 | LTTV_TRACES))); |
210 | |
211 | for(i=0;i<lttvwindowtraces_get_number();i++) { |
212 | LttvTrace *trace_v = lttvwindowtraces_get_trace(i); |
213 | |
214 | g_assert(trace_v != NULL); |
215 | |
b052368a |
216 | /* Remove and background computation that could be in progress */ |
217 | g_idle_remove_by_data(trace_v); |
218 | |
a1a2b649 |
219 | if(trace_v == trace) { |
220 | /* Found */ |
8bc02ec8 |
221 | LttvAttribute *l_attribute; |
222 | |
223 | /* create new traceset and tracesetcontext */ |
224 | LttvTraceset *ts; |
313bd6fc |
225 | LttvTracesetStats *tss; |
8bc02ec8 |
226 | |
227 | l_attribute = lttv_trace_attribute(trace); |
228 | |
229 | |
230 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute), |
231 | LTTV_REQUESTS_QUEUE); |
232 | |
233 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute), |
234 | LTTV_REQUESTS_CURRENT); |
235 | |
236 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute), |
237 | LTTV_NOTIFY_QUEUE); |
238 | |
239 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute), |
240 | LTTV_NOTIFY_CURRENT); |
241 | |
242 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(l_attribute), |
243 | LTTV_COMPUTATION_TRACESET, |
244 | LTTV_POINTER, |
245 | &value)); |
246 | ts = (LttvTraceset*)*(value.v_pointer); |
247 | |
248 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(l_attribute), |
249 | LTTV_COMPUTATION_TRACESET_CONTEXT, |
250 | LTTV_POINTER, |
251 | &value)); |
313bd6fc |
252 | tss = (LttvTracesetStats*)*(value.v_pointer); |
8bc02ec8 |
253 | |
313bd6fc |
254 | lttv_context_fini(LTTV_TRACESET_CONTEXT(tss)); |
255 | g_object_unref(tss); |
8bc02ec8 |
256 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute), |
257 | LTTV_COMPUTATION_TRACESET_CONTEXT); |
258 | lttv_traceset_destroy(ts); |
259 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute), |
260 | LTTV_COMPUTATION_TRACESET); |
261 | |
262 | /* finally, remove the global attribute */ |
a1a2b649 |
263 | lttv_attribute_remove(attribute, i); |
8bc02ec8 |
264 | |
a1a2b649 |
265 | return; |
266 | } |
267 | } |
268 | } |
269 | |
270 | |
271 | /** |
272 | * Function to request data from a specific trace |
273 | * |
274 | * The memory allocated for the request will be managed by the API. |
275 | * |
276 | * @param trace the trace to compute |
277 | * @param module_name the name of the module which registered global computation |
278 | * hooks. |
279 | */ |
280 | |
281 | void lttvwindowtraces_background_request_queue |
282 | (LttvTrace *trace, gchar *module_name) |
283 | { |
284 | BackgroundRequest *bg_req; |
285 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
91fd6881 |
286 | LttvAttribute *g_attribute = lttv_global_attributes(); |
287 | LttvAttribute *module_attribute; |
a1a2b649 |
288 | LttvAttributeValue value; |
91fd6881 |
289 | LttvAttributeType type; |
a1a2b649 |
290 | GSList **slist; |
291 | guint num; |
292 | |
293 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
294 | LTTV_REQUESTS_QUEUE, |
295 | LTTV_POINTER, |
296 | &value)); |
297 | slist = (GSList**)(value.v_pointer); |
91fd6881 |
298 | |
299 | /* Verify that the calculator is loaded */ |
300 | g_assert(module_attribute = |
301 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
302 | LTTV_COMPUTATION))); |
303 | |
304 | |
305 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
306 | g_quark_from_string(module_name), |
307 | &value); |
308 | if(type == LTTV_NONE) { |
309 | g_critical("Missing background calculator %s", module_name); |
310 | return; |
311 | } |
312 | |
a1a2b649 |
313 | bg_req = g_new(BackgroundRequest,1); |
314 | bg_req->module_name = g_quark_from_string(module_name); |
315 | bg_req->trace = trace; |
316 | |
317 | *slist = g_slist_append(*slist, bg_req); |
313bd6fc |
318 | |
319 | /* Priority lower than live servicing */ |
320 | g_idle_remove_by_data(trace); |
321 | g_idle_add_full((G_PRIORITY_HIGH_IDLE + 23), |
322 | (GSourceFunc)lttvwindowtraces_process_pending_requests, |
323 | trace, |
324 | NULL); |
b052368a |
325 | /* FIXME : show message in status bar, need context and message id */ |
326 | g_info("Background computation started for trace %p", trace); |
a1a2b649 |
327 | } |
328 | |
329 | /** |
330 | * Remove a background request from a trace. |
331 | * |
332 | * This should ONLY be used by the modules which registered the global hooks |
333 | * (module_name). If this is called by the viewers, it may lead to incomplete |
334 | * and incoherent background processing information. |
335 | * |
336 | * Even if the module which deals with the hooks removes the background |
337 | * requests, it may cause a problem if the module gets loaded again in the |
338 | * session : the data will be partially calculated. The calculation function |
339 | * must deal with this case correctly. |
340 | * |
341 | * @param trace the trace to compute |
342 | * @param module_name the name of the module which registered global computation |
343 | * hooks. |
344 | */ |
345 | |
346 | void lttvwindowtraces_background_request_remove |
347 | (LttvTrace *trace, gchar *module_name) |
348 | { |
349 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
350 | LttvAttributeValue value; |
351 | GSList *iter = NULL; |
352 | GSList **slist; |
353 | |
354 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
355 | LTTV_REQUESTS_QUEUE, |
356 | LTTV_POINTER, |
357 | &value)); |
358 | slist = (GSList**)(value.v_pointer); |
359 | |
360 | for(iter=*slist;iter!=NULL;) { |
361 | BackgroundRequest *bg_req = |
362 | (BackgroundRequest *)iter->data; |
363 | |
364 | if(bg_req->module_name == g_quark_from_string(module_name)) { |
365 | GSList *rem_iter = iter; |
366 | iter=g_slist_next(iter); |
367 | g_free(bg_req); |
368 | *slist = g_slist_delete_link(*slist, rem_iter); |
369 | } else { |
370 | iter=g_slist_next(iter); |
371 | } |
372 | } |
373 | } |
374 | |
375 | |
376 | /** |
377 | * Register a callback to be called when requested data is passed in the next |
378 | * queued background processing. |
379 | * |
380 | * @param owner owner of the background notification |
381 | * @param trace the trace computed |
382 | * @param notify_time time when notification hooks must be called |
383 | * @param notify_position position when notification hooks must be called |
384 | * @param notify Hook to call when the notify position is passed |
385 | */ |
386 | |
387 | void lttvwindowtraces_background_notify_queue |
388 | (gpointer owner, |
389 | LttvTrace *trace, |
390 | LttTime notify_time, |
391 | const LttvTracesetContextPosition *notify_position, |
392 | const LttvHooks *notify) |
393 | { |
394 | BackgroundNotify *bg_notify; |
395 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
396 | LttvAttributeValue value; |
397 | GSList **slist; |
398 | |
399 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
400 | LTTV_NOTIFY_QUEUE, |
401 | LTTV_POINTER, |
402 | &value)); |
403 | slist = (GSList**)(value.v_pointer); |
404 | |
405 | |
406 | bg_notify = g_new(BackgroundNotify,1); |
407 | |
408 | bg_notify->owner = owner; |
409 | bg_notify->trace = trace; |
410 | bg_notify->notify_time = notify_time; |
313bd6fc |
411 | if(notify_position != NULL) { |
b052368a |
412 | bg_notify->notify_position = lttv_traceset_context_position_new(); |
313bd6fc |
413 | lttv_traceset_context_position_copy(bg_notify->notify_position, |
414 | notify_position); |
415 | } else { |
416 | bg_notify->notify_position = NULL; |
417 | } |
418 | |
a1a2b649 |
419 | bg_notify->notify = lttv_hooks_new(); |
420 | lttv_hooks_add_list(bg_notify->notify, notify); |
421 | |
422 | *slist = g_slist_append(*slist, bg_notify); |
423 | } |
424 | |
425 | /** |
426 | * Register a callback to be called when requested data is passed in the current |
427 | * background processing. |
428 | * |
429 | * @param owner owner of the background notification |
430 | * @param trace the trace computed |
431 | * @param notify_time time when notification hooks must be called |
432 | * @param notify_position position when notification hooks must be called |
433 | * @param notify Hook to call when the notify position is passed |
434 | */ |
435 | |
436 | void lttvwindowtraces_background_notify_current |
437 | (gpointer owner, |
438 | LttvTrace *trace, |
439 | LttTime notify_time, |
440 | const LttvTracesetContextPosition *notify_position, |
441 | const LttvHooks *notify) |
442 | { |
443 | BackgroundNotify *bg_notify; |
444 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
445 | LttvAttributeValue value; |
446 | GSList **slist; |
447 | |
448 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
449 | LTTV_NOTIFY_CURRENT, |
450 | LTTV_POINTER, |
451 | &value)); |
452 | slist = (GSList**)(value.v_pointer); |
453 | |
454 | bg_notify = g_new(BackgroundNotify,1); |
455 | |
456 | bg_notify->owner = owner; |
457 | bg_notify->trace = trace; |
458 | bg_notify->notify_time = notify_time; |
313bd6fc |
459 | if(notify_position!= NULL) { |
b052368a |
460 | bg_notify->notify_position = lttv_traceset_context_position_new(); |
313bd6fc |
461 | lttv_traceset_context_position_copy(bg_notify->notify_position, |
462 | notify_position); |
463 | } else { |
464 | bg_notify->notify_position = NULL; |
465 | } |
a1a2b649 |
466 | bg_notify->notify = lttv_hooks_new(); |
467 | lttv_hooks_add_list(bg_notify->notify, notify); |
468 | |
469 | *slist = g_slist_append(*slist, bg_notify); |
470 | } |
471 | |
b052368a |
472 | |
473 | static void notify_request_free(BackgroundNotify *notify_req) |
474 | { |
475 | if(notify_req == NULL) return; |
476 | |
477 | if(notify_req->notify_position != NULL) |
478 | lttv_traceset_context_position_destroy(notify_req->notify_position); |
479 | if(notify_req->notify != NULL) |
480 | lttv_hooks_destroy(notify_req->notify); |
481 | g_free(notify_req); |
482 | } |
483 | |
a1a2b649 |
484 | /** |
485 | * Removes all the notifications requests from a specific viewer. |
486 | * |
487 | * @param owner owner of the background notification |
488 | */ |
489 | |
490 | void lttvwindowtraces_background_notify_remove(gpointer owner) |
491 | { |
492 | guint i; |
493 | |
494 | for(i=0;i<lttvwindowtraces_get_number();i++) { |
495 | LttvAttribute *attribute; |
496 | LttvAttributeValue value; |
497 | LttvTrace *trace_v = lttvwindowtraces_get_trace(i); |
498 | GSList **slist; |
499 | GSList *iter = NULL; |
500 | |
501 | g_assert(trace_v != NULL); |
502 | |
b052368a |
503 | attribute = lttv_trace_attribute(trace_v); |
a1a2b649 |
504 | |
505 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
506 | LTTV_NOTIFY_QUEUE, |
507 | LTTV_POINTER, |
508 | &value)); |
509 | slist = (GSList**)(value.v_pointer); |
510 | |
511 | for(iter=*slist;iter!=NULL;) { |
512 | |
513 | BackgroundNotify *bg_notify = (BackgroundNotify*)iter->data; |
514 | |
515 | if(bg_notify->owner == owner) { |
516 | GSList *rem_iter = iter; |
517 | iter=g_slist_next(iter); |
b052368a |
518 | notify_request_free(bg_notify); |
519 | *slist = g_slist_remove_link(*slist, rem_iter); |
a1a2b649 |
520 | } else { |
521 | iter=g_slist_next(iter); |
522 | } |
523 | } |
524 | |
525 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
526 | LTTV_NOTIFY_CURRENT, |
527 | LTTV_POINTER, |
528 | &value)); |
529 | slist = (GSList**)(value.v_pointer); |
530 | |
531 | for(iter=*slist;iter!=NULL;) { |
532 | |
533 | BackgroundNotify *bg_notify = (BackgroundNotify*)iter->data; |
534 | |
535 | if(bg_notify->owner == owner) { |
536 | GSList *rem_iter = iter; |
537 | iter=g_slist_next(iter); |
b052368a |
538 | notify_request_free(bg_notify); |
539 | *slist = g_slist_remove_link(*slist, rem_iter); |
a1a2b649 |
540 | } else { |
541 | iter=g_slist_next(iter); |
542 | } |
543 | } |
544 | } |
545 | } |
546 | |
8bc02ec8 |
547 | |
548 | /* Background processing helper functions */ |
549 | |
550 | void lttvwindowtraces_add_computation_hooks(LttvAttributeName module_name, |
551 | LttvTracesetContext *tsc) |
552 | { |
553 | LttvAttribute *g_attribute = lttv_global_attributes(); |
554 | LttvAttribute *module_attribute; |
555 | LttvAttributeType type; |
556 | LttvAttributeValue value; |
557 | LttvHooks *before_chunk_traceset=NULL; |
558 | LttvHooks *before_chunk_trace=NULL; |
559 | LttvHooks *before_chunk_tracefile=NULL; |
560 | LttvHooks *event_hook=NULL; |
561 | LttvHooksById *event_hook_by_id=NULL; |
313bd6fc |
562 | LttvTracesetStats *tss = LTTV_TRACESET_STATS(tsc); |
8bc02ec8 |
563 | |
564 | |
565 | g_assert(module_attribute = |
566 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
567 | LTTV_COMPUTATION))); |
568 | |
569 | g_assert(module_attribute = |
570 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir( |
571 | LTTV_IATTRIBUTE(module_attribute), |
572 | module_name))); |
573 | |
574 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
575 | LTTV_BEFORE_CHUNK_TRACESET, |
576 | &value); |
577 | if(type == LTTV_POINTER) { |
578 | before_chunk_traceset = (LttvHooks*)*(value.v_pointer); |
579 | } |
580 | |
581 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
582 | LTTV_BEFORE_CHUNK_TRACE, |
583 | &value); |
584 | if(type == LTTV_POINTER) { |
585 | before_chunk_trace = (LttvHooks*)*(value.v_pointer); |
586 | } |
587 | |
588 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
589 | LTTV_BEFORE_CHUNK_TRACEFILE, |
590 | &value); |
591 | if(type == LTTV_POINTER) { |
592 | before_chunk_tracefile = (LttvHooks*)*(value.v_pointer); |
593 | } |
594 | |
595 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
596 | LTTV_EVENT_HOOK, |
597 | &value); |
598 | if(type == LTTV_POINTER) { |
599 | event_hook = (LttvHooks*)*(value.v_pointer); |
600 | } |
601 | |
602 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
603 | LTTV_EVENT_HOOK_BY_ID, |
604 | &value); |
605 | if(type == LTTV_POINTER) { |
606 | event_hook_by_id = (LttvHooksById*)*(value.v_pointer); |
607 | } |
608 | |
313bd6fc |
609 | /* Call the module's hook adder */ |
610 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
611 | LTTV_HOOK_ADDER, |
612 | &value); |
613 | if(type == LTTV_POINTER) { |
614 | lttv_hooks_call((LttvHooks*)*(value.v_pointer), (gpointer)tss); |
615 | } |
616 | |
617 | |
8bc02ec8 |
618 | |
619 | lttv_process_traceset_begin(tsc, |
620 | before_chunk_traceset, |
621 | before_chunk_trace, |
622 | before_chunk_tracefile, |
623 | event_hook, |
624 | event_hook_by_id); |
625 | |
626 | } |
627 | |
628 | void lttvwindowtraces_remove_computation_hooks(LttvAttributeName module_name, |
629 | LttvTracesetContext *tsc) |
630 | { |
631 | LttvAttribute *g_attribute = lttv_global_attributes(); |
632 | LttvAttribute *module_attribute; |
633 | LttvAttributeType type; |
634 | LttvAttributeValue value; |
635 | LttvHooks *after_chunk_traceset=NULL; |
636 | LttvHooks *after_chunk_trace=NULL; |
637 | LttvHooks *after_chunk_tracefile=NULL; |
638 | LttvHooks *event_hook=NULL; |
639 | LttvHooksById *event_hook_by_id=NULL; |
313bd6fc |
640 | LttvTracesetStats *tss = LTTV_TRACESET_STATS(tsc); |
8bc02ec8 |
641 | |
642 | g_assert(module_attribute = |
643 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
644 | LTTV_COMPUTATION))); |
645 | |
646 | g_assert(module_attribute = |
647 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir( |
648 | LTTV_IATTRIBUTE(module_attribute), |
649 | module_name))); |
650 | |
651 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
652 | LTTV_AFTER_CHUNK_TRACESET, |
653 | &value); |
654 | if(type == LTTV_POINTER) { |
655 | after_chunk_traceset = (LttvHooks*)*(value.v_pointer); |
656 | } |
657 | |
658 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
659 | LTTV_AFTER_CHUNK_TRACE, |
660 | &value); |
661 | if(type == LTTV_POINTER) { |
662 | after_chunk_trace = (LttvHooks*)*(value.v_pointer); |
663 | } |
664 | |
665 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
666 | LTTV_AFTER_CHUNK_TRACEFILE, |
667 | &value); |
668 | if(type == LTTV_POINTER) { |
669 | after_chunk_tracefile = (LttvHooks*)*(value.v_pointer); |
670 | } |
671 | |
672 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
673 | LTTV_EVENT_HOOK, |
674 | &value); |
675 | if(type == LTTV_POINTER) { |
676 | event_hook = (LttvHooks*)*(value.v_pointer); |
677 | } |
678 | |
679 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
680 | LTTV_EVENT_HOOK_BY_ID, |
681 | &value); |
682 | if(type == LTTV_POINTER) { |
683 | event_hook_by_id = (LttvHooksById*)*(value.v_pointer); |
684 | } |
313bd6fc |
685 | |
8bc02ec8 |
686 | lttv_process_traceset_end(tsc, |
687 | after_chunk_traceset, |
688 | after_chunk_trace, |
689 | after_chunk_tracefile, |
690 | event_hook, |
691 | event_hook_by_id); |
313bd6fc |
692 | |
693 | /* Call the module's hook remover */ |
694 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
695 | LTTV_HOOK_REMOVER, |
696 | &value); |
697 | if(type == LTTV_POINTER) { |
698 | lttv_hooks_call((LttvHooks*)*(value.v_pointer), (gpointer)tss); |
699 | } |
8bc02ec8 |
700 | } |
701 | |
702 | |
703 | void lttvwindowtraces_set_in_progress(LttvAttributeName module_name, |
704 | LttvTrace *trace) |
705 | { |
706 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
707 | LttvAttributeValue value; |
708 | |
709 | g_assert(attribute = |
710 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
711 | module_name))); |
712 | |
713 | value = lttv_iattribute_add(LTTV_IATTRIBUTE(attribute), |
714 | LTTV_IN_PROGRESS, |
715 | LTTV_INT); |
716 | /* the value is left unset. The only presence of the attribute is necessary. |
717 | */ |
718 | } |
719 | |
720 | void lttvwindowtraces_unset_in_progress(LttvAttributeName module_name, |
721 | LttvTrace *trace) |
722 | { |
723 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
724 | |
725 | g_assert(attribute = |
726 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
727 | module_name))); |
728 | |
313bd6fc |
729 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
8bc02ec8 |
730 | LTTV_IN_PROGRESS); |
731 | } |
732 | |
733 | gboolean lttvwindowtraces_get_in_progress(LttvAttributeName module_name, |
734 | LttvTrace *trace) |
735 | { |
736 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
737 | LttvAttributeType type; |
738 | LttvAttributeValue value; |
739 | |
740 | g_assert(attribute = |
741 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
742 | module_name))); |
743 | |
744 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
745 | LTTV_IN_PROGRESS, |
746 | &value); |
747 | /* The only presence of the attribute is necessary. */ |
748 | if(type == LTTV_NONE) |
749 | return FALSE; |
750 | else |
751 | return TRUE; |
752 | } |
753 | |
754 | void lttvwindowtraces_set_ready(LttvAttributeName module_name, |
755 | LttvTrace *trace) |
756 | { |
757 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
758 | LttvAttributeValue value; |
759 | |
760 | g_assert(attribute = |
761 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
762 | module_name))); |
763 | |
764 | value = lttv_iattribute_add(LTTV_IATTRIBUTE(attribute), |
765 | LTTV_READY, |
766 | LTTV_INT); |
767 | /* the value is left unset. The only presence of the attribute is necessary. |
768 | */ |
769 | } |
770 | |
771 | void lttvwindowtraces_unset_ready(LttvAttributeName module_name, |
772 | LttvTrace *trace) |
773 | { |
774 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
775 | |
776 | g_assert(attribute = |
777 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
778 | module_name))); |
779 | |
313bd6fc |
780 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
8bc02ec8 |
781 | LTTV_READY); |
782 | } |
783 | |
784 | gboolean lttvwindowtraces_get_ready(LttvAttributeName module_name, |
785 | LttvTrace *trace) |
786 | { |
787 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
788 | LttvAttributeType type; |
789 | LttvAttributeValue value; |
790 | |
791 | g_assert(attribute = |
792 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
793 | module_name))); |
794 | |
795 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
796 | LTTV_READY, |
797 | &value); |
798 | /* The only presence of the attribute is necessary. */ |
799 | if(type == LTTV_NONE) |
800 | return FALSE; |
801 | else |
802 | return TRUE; |
803 | } |
804 | |
805 | |
8bc02ec8 |
806 | /* lttvwindowtraces_process_pending_requests |
807 | * |
808 | * This internal function gets called by g_idle, taking care of the pending |
809 | * requests. |
810 | * |
811 | */ |
812 | |
813 | |
814 | gboolean lttvwindowtraces_process_pending_requests(LttvTrace *trace) |
815 | { |
816 | LttvTracesetContext *tsc; |
313bd6fc |
817 | LttvTracesetStats *tss; |
8bc02ec8 |
818 | LttvTraceset *ts; |
819 | LttvAttribute *attribute; |
91fd6881 |
820 | LttvAttribute *g_attribute = lttv_global_attributes(); |
313bd6fc |
821 | GSList **list_out, **list_in, **notify_in, **notify_out; |
8bc02ec8 |
822 | LttvAttributeValue value; |
823 | LttvAttributeType type; |
b052368a |
824 | gboolean ret_val; |
91fd6881 |
825 | LttvHooks *before_request, *after_request; |
8bc02ec8 |
826 | |
313bd6fc |
827 | if(trace == NULL) |
8bc02ec8 |
828 | return FALSE; |
829 | |
830 | attribute = lttv_trace_attribute(trace); |
831 | |
832 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
833 | LTTV_REQUESTS_QUEUE, |
834 | &value); |
835 | g_assert(type == LTTV_POINTER); |
313bd6fc |
836 | list_out = (GSList**)(value.v_pointer); |
8bc02ec8 |
837 | |
838 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
839 | LTTV_REQUESTS_CURRENT, |
840 | &value); |
841 | g_assert(type == LTTV_POINTER); |
313bd6fc |
842 | list_in = (GSList**)(value.v_pointer); |
8bc02ec8 |
843 | |
844 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
845 | LTTV_NOTIFY_QUEUE, |
846 | &value); |
847 | g_assert(type == LTTV_POINTER); |
313bd6fc |
848 | notify_out = (GSList**)(value.v_pointer); |
8bc02ec8 |
849 | |
850 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
851 | LTTV_NOTIFY_CURRENT, |
852 | &value); |
853 | g_assert(type == LTTV_POINTER); |
313bd6fc |
854 | notify_in = (GSList**)(value.v_pointer); |
8bc02ec8 |
855 | |
856 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
857 | LTTV_COMPUTATION_TRACESET, |
858 | &value); |
859 | g_assert(type == LTTV_POINTER); |
860 | ts = (LttvTraceset*)*(value.v_pointer); |
861 | |
862 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
863 | LTTV_COMPUTATION_TRACESET_CONTEXT, |
864 | &value); |
865 | g_assert(type == LTTV_POINTER); |
866 | tsc = (LttvTracesetContext*)*(value.v_pointer); |
313bd6fc |
867 | tss = (LttvTracesetStats*)*(value.v_pointer); |
8bc02ec8 |
868 | g_assert(LTTV_IS_TRACESET_CONTEXT(tsc)); |
313bd6fc |
869 | g_assert(LTTV_IS_TRACESET_STATS(tss)); |
8bc02ec8 |
870 | |
871 | /* There is no events requests pending : we should never have been called! */ |
313bd6fc |
872 | g_assert(g_slist_length(*list_out) != 0 || g_slist_length(*list_in) != 0); |
8bc02ec8 |
873 | |
b052368a |
874 | /* 0.1 Lock traces */ |
875 | { |
876 | guint iter_trace=0; |
877 | |
878 | for(iter_trace=0; |
879 | iter_trace<lttv_traceset_number(tsc->ts); |
880 | iter_trace++) { |
881 | LttvTrace *trace_v = lttv_traceset_get(tsc->ts,iter_trace); |
882 | |
883 | if(lttvwindowtraces_lock(trace_v) != 0) |
884 | return TRUE; /* Cannot get trace lock, try later */ |
8bc02ec8 |
885 | |
b052368a |
886 | } |
887 | } |
888 | /* 0.2 Sync tracefiles */ |
889 | lttv_process_traceset_synchronize_tracefiles(tsc); |
8bc02ec8 |
890 | |
891 | /* 1. Before processing */ |
892 | { |
893 | /* if list_in is empty */ |
313bd6fc |
894 | if(g_slist_length(*list_in) == 0) { |
8bc02ec8 |
895 | |
896 | { |
897 | /* - Add all requests in list_out to list_in, empty list_out */ |
313bd6fc |
898 | GSList *iter = *list_out; |
8bc02ec8 |
899 | |
900 | while(iter != NULL) { |
901 | gboolean remove = FALSE; |
902 | gboolean free_data = FALSE; |
903 | |
904 | BackgroundRequest *bg_req = (BackgroundRequest*)iter->data; |
905 | |
906 | remove = TRUE; |
907 | free_data = FALSE; |
313bd6fc |
908 | *list_in = g_slist_append(*list_in, bg_req); |
8bc02ec8 |
909 | |
910 | /* Go to next */ |
911 | if(remove) |
912 | { |
913 | GSList *remove_iter = iter; |
914 | |
915 | iter = g_slist_next(iter); |
916 | if(free_data) g_free(remove_iter->data); |
313bd6fc |
917 | *list_out = g_slist_remove_link(*list_out, remove_iter); |
8bc02ec8 |
918 | } else { // not remove |
919 | iter = g_slist_next(iter); |
920 | } |
921 | } |
922 | } |
923 | |
924 | { |
313bd6fc |
925 | GSList *iter = *list_in; |
8bc02ec8 |
926 | /* - for each request in list_in */ |
927 | while(iter != NULL) { |
928 | |
929 | BackgroundRequest *bg_req = (BackgroundRequest*)iter->data; |
91fd6881 |
930 | /* - set hooks'in_progress flag to TRUE */ |
8bc02ec8 |
931 | lttvwindowtraces_set_in_progress(bg_req->module_name, |
932 | bg_req->trace); |
91fd6881 |
933 | |
934 | /* - call before request hook */ |
935 | /* Get before request hook */ |
936 | LttvAttribute *module_attribute; |
937 | |
938 | g_assert(module_attribute = |
939 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir( |
940 | LTTV_IATTRIBUTE(g_attribute), |
941 | LTTV_COMPUTATION))); |
942 | |
943 | g_assert(module_attribute = |
944 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir( |
945 | LTTV_IATTRIBUTE(module_attribute), |
946 | bg_req->module_name))); |
947 | |
948 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
949 | LTTV_BEFORE_REQUEST, |
950 | &value); |
951 | g_assert(type == LTTV_POINTER); |
952 | LttvHooks *before_request = (LttvHooks*)*(value.v_pointer); |
953 | |
954 | |
955 | if(before_request != NULL) lttv_hooks_call(before_request, tsc); |
8bc02ec8 |
956 | |
957 | iter = g_slist_next(iter); |
958 | } |
959 | } |
960 | |
961 | /* - seek trace to start */ |
962 | { |
963 | LttTime start = { 0, 0}; |
964 | lttv_process_traceset_seek_time(tsc, start); |
965 | } |
966 | |
967 | /* - Move all notifications from notify_out to notify_in. */ |
968 | { |
313bd6fc |
969 | GSList *iter = *notify_out; |
970 | g_assert(g_slist_length(*notify_in) == 0); |
8bc02ec8 |
971 | |
972 | while(iter != NULL) { |
973 | gboolean remove = FALSE; |
974 | gboolean free_data = FALSE; |
975 | |
976 | BackgroundNotify *notify_req = (BackgroundNotify*)iter->data; |
977 | |
978 | remove = TRUE; |
979 | free_data = FALSE; |
313bd6fc |
980 | *notify_in = g_slist_append(*notify_in, notify_req); |
8bc02ec8 |
981 | |
982 | /* Go to next */ |
983 | if(remove) |
984 | { |
985 | GSList *remove_iter = iter; |
986 | |
987 | iter = g_slist_next(iter); |
b052368a |
988 | if(free_data) |
989 | notify_request_free((BackgroundNotify*)remove_iter->data); |
313bd6fc |
990 | *notify_out = g_slist_remove_link(*notify_out, remove_iter); |
8bc02ec8 |
991 | } else { // not remove |
992 | iter = g_slist_next(iter); |
993 | } |
994 | } |
995 | } |
996 | } |
997 | |
998 | { |
313bd6fc |
999 | GSList *iter = *list_in; |
8bc02ec8 |
1000 | /* - for each request in list_in */ |
1001 | while(iter != NULL) { |
1002 | |
1003 | BackgroundRequest *bg_req = (BackgroundRequest*)iter->data; |
1004 | /*- Call before chunk hooks for list_in*/ |
1005 | /*- add hooks to context*/ |
1006 | lttvwindowtraces_add_computation_hooks(bg_req->module_name, |
1007 | tsc); |
1008 | iter = g_slist_next(iter); |
1009 | } |
1010 | } |
1011 | } |
1012 | |
1013 | /* 2. call process traceset middle for a chunk */ |
1014 | { |
1015 | /*(assert list_in is not empty! : should not even be called in that case)*/ |
1016 | LttTime end = { G_MAXUINT, G_MAXUINT }; |
313bd6fc |
1017 | g_assert(g_slist_length(*list_in) != 0); |
8bc02ec8 |
1018 | |
1019 | lttv_process_traceset_middle(tsc, end, CHUNK_NUM_EVENTS, NULL); |
1020 | } |
1021 | |
1022 | /* 3. After the chunk */ |
1023 | { |
1024 | /* 3.1 call after_chunk hooks for list_in */ |
1025 | { |
313bd6fc |
1026 | GSList *iter = *list_in; |
8bc02ec8 |
1027 | /* - for each request in list_in */ |
1028 | while(iter != NULL) { |
1029 | |
1030 | BackgroundRequest *bg_req = (BackgroundRequest*)iter->data; |
1031 | /* - Call after chunk hooks for list_in */ |
1032 | /* - remove hooks from context */ |
1033 | lttvwindowtraces_remove_computation_hooks(bg_req->module_name, |
1034 | tsc); |
1035 | iter = g_slist_next(iter); |
1036 | } |
1037 | } |
1038 | |
1039 | /* 3.2 for each notify_in */ |
1040 | { |
313bd6fc |
1041 | GSList *iter = *notify_in; |
8bc02ec8 |
1042 | LttvTracefileContext *tfc = lttv_traceset_context_get_current_tfc(tsc); |
1043 | |
1044 | while(iter != NULL) { |
1045 | gboolean remove = FALSE; |
1046 | gboolean free_data = FALSE; |
1047 | |
1048 | BackgroundNotify *notify_req = (BackgroundNotify*)iter->data; |
1049 | |
1050 | /* - if current time >= notify time, call notify and remove from |
1051 | * notify_in. |
1052 | * - if current position >= notify position, call notify and remove |
1053 | * from notify_in. |
1054 | */ |
1055 | if( (tfc != NULL && |
313bd6fc |
1056 | ltt_time_compare(notify_req->notify_time, tfc->timestamp) <= 0) |
8bc02ec8 |
1057 | || |
313bd6fc |
1058 | (notify_req->notify_position != NULL && |
1059 | lttv_traceset_context_ctx_pos_compare(tsc, |
1060 | notify_req->notify_position) >= 0) |
8bc02ec8 |
1061 | ) { |
1062 | |
1063 | lttv_hooks_call(notify_req->notify, notify_req); |
1064 | |
1065 | remove = TRUE; |
1066 | free_data = TRUE; |
1067 | } |
1068 | |
1069 | /* Go to next */ |
1070 | if(remove) |
1071 | { |
1072 | GSList *remove_iter = iter; |
1073 | |
1074 | iter = g_slist_next(iter); |
b052368a |
1075 | if(free_data) |
1076 | notify_request_free((BackgroundNotify*)remove_iter->data); |
313bd6fc |
1077 | *notify_in = g_slist_remove_link(*notify_in, remove_iter); |
8bc02ec8 |
1078 | } else { // not remove |
1079 | iter = g_slist_next(iter); |
1080 | } |
1081 | } |
1082 | } |
1083 | |
1084 | { |
1085 | LttvTracefileContext *tfc = lttv_traceset_context_get_current_tfc(tsc); |
1086 | /* 3.3 if end of trace reached */ |
313bd6fc |
1087 | if(tfc != NULL) |
1088 | g_debug("Current time : %lu sec, %lu nsec", |
1089 | tfc->timestamp.tv_sec, tfc->timestamp.tv_nsec); |
8bc02ec8 |
1090 | if(tfc == NULL || ltt_time_compare(tfc->timestamp, |
1091 | tsc->time_span.end_time) > 0) { |
1092 | |
1093 | /* - for each request in list_in */ |
1094 | { |
313bd6fc |
1095 | GSList *iter = *list_in; |
8bc02ec8 |
1096 | |
1097 | while(iter != NULL) { |
1098 | gboolean remove = FALSE; |
1099 | gboolean free_data = FALSE; |
1100 | |
1101 | BackgroundRequest *bg_req = (BackgroundRequest*)iter->data; |
1102 | |
1103 | /* - set hooks'in_progress flag to FALSE */ |
1104 | lttvwindowtraces_unset_in_progress(bg_req->module_name, |
1105 | bg_req->trace); |
1106 | /* - set hooks'ready flag to TRUE */ |
1107 | lttvwindowtraces_set_ready(bg_req->module_name, |
1108 | bg_req->trace); |
91fd6881 |
1109 | /* - call after request hook */ |
1110 | /* Get after request hook */ |
1111 | LttvAttribute *module_attribute; |
1112 | |
1113 | g_assert(module_attribute = |
1114 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir( |
1115 | LTTV_IATTRIBUTE(g_attribute), |
1116 | LTTV_COMPUTATION))); |
1117 | |
1118 | g_assert(module_attribute = |
1119 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir( |
1120 | LTTV_IATTRIBUTE(module_attribute), |
1121 | bg_req->module_name))); |
1122 | |
1123 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
1124 | LTTV_AFTER_REQUEST, |
1125 | &value); |
1126 | g_assert(type == LTTV_POINTER); |
1127 | LttvHooks *after_request = (LttvHooks*)*(value.v_pointer); |
1128 | |
1129 | if(after_request != NULL) lttv_hooks_call(after_request, tsc); |
8bc02ec8 |
1130 | /* - remove request */ |
1131 | remove = TRUE; |
1132 | free_data = TRUE; |
1133 | |
1134 | /* Go to next */ |
1135 | if(remove) |
1136 | { |
1137 | GSList *remove_iter = iter; |
1138 | |
1139 | iter = g_slist_next(iter); |
1140 | if(free_data) g_free(remove_iter->data); |
313bd6fc |
1141 | *list_in = g_slist_remove_link(*list_in, remove_iter); |
8bc02ec8 |
1142 | } else { // not remove |
1143 | iter = g_slist_next(iter); |
1144 | } |
1145 | } |
1146 | } |
1147 | |
1148 | /* - for each notifications in notify_in */ |
1149 | { |
313bd6fc |
1150 | GSList *iter = *notify_in; |
8bc02ec8 |
1151 | |
1152 | while(iter != NULL) { |
1153 | gboolean remove = FALSE; |
1154 | gboolean free_data = FALSE; |
1155 | |
1156 | BackgroundNotify *notify_req = (BackgroundNotify*)iter->data; |
1157 | |
1158 | /* - call notify and remove from notify_in */ |
1159 | lttv_hooks_call(notify_req->notify, notify_req); |
1160 | remove = TRUE; |
1161 | free_data = TRUE; |
1162 | |
1163 | /* Go to next */ |
1164 | if(remove) |
1165 | { |
1166 | GSList *remove_iter = iter; |
1167 | |
1168 | iter = g_slist_next(iter); |
b052368a |
1169 | if(free_data) |
1170 | notify_request_free((BackgroundNotify*)remove_iter->data); |
313bd6fc |
1171 | *notify_in = g_slist_remove_link(*notify_in, remove_iter); |
8bc02ec8 |
1172 | } else { // not remove |
1173 | iter = g_slist_next(iter); |
1174 | } |
1175 | } |
1176 | } |
3710295e |
1177 | /* - if list_out is empty */ |
1178 | if(g_slist_length(*list_out) == 0) { |
1179 | /* - return FALSE (scheduler stopped) */ |
1180 | g_debug("Background computation scheduler stopped"); |
1181 | g_info("Background computation finished for trace %p", trace); |
1182 | /* FIXME : remove status bar info, need context id and message id */ |
1183 | ret_val = FALSE; |
1184 | } else { |
1185 | ret_val = TRUE; |
1186 | } |
8bc02ec8 |
1187 | } else { |
1188 | /* 3.4 else, end of trace not reached */ |
1189 | /* - return TRUE (scheduler still registered) */ |
313bd6fc |
1190 | g_debug("Background computation left"); |
b052368a |
1191 | ret_val = TRUE; |
8bc02ec8 |
1192 | } |
1193 | } |
1194 | } |
b052368a |
1195 | /* 4. Unlock traces */ |
1196 | { |
1197 | //lttv_process_traceset_get_sync_data(tsc); |
1198 | guint iter_trace; |
1199 | |
1200 | for(iter_trace=0; |
1201 | iter_trace<lttv_traceset_number(tsc->ts); |
1202 | iter_trace++) { |
1203 | LttvTrace *trace_v = lttv_traceset_get(tsc->ts, iter_trace); |
1204 | |
1205 | lttvwindowtraces_unlock(trace_v); |
1206 | } |
1207 | } |
1208 | return ret_val; |
8bc02ec8 |
1209 | } |
e62a7964 |
1210 | |
1211 | |
1212 | |
1213 | /** |
1214 | * Register the background computation hooks for a specific module. It adds the |
313bd6fc |
1215 | * computation hooks to the global attrubutes, under "computation/module name". |
e62a7964 |
1216 | * |
1217 | * @param module_name A GQuark : the name of the module which computes the |
1218 | * information. |
1219 | */ |
1220 | void lttvwindowtraces_register_computation_hooks(LttvAttributeName module_name, |
1221 | LttvHooks *before_chunk_traceset, |
1222 | LttvHooks *before_chunk_trace, |
1223 | LttvHooks *before_chunk_tracefile, |
1224 | LttvHooks *after_chunk_traceset, |
1225 | LttvHooks *after_chunk_trace, |
1226 | LttvHooks *after_chunk_tracefile, |
1227 | LttvHooks *before_request, |
1228 | LttvHooks *after_request, |
1229 | LttvHooks *event_hook, |
313bd6fc |
1230 | LttvHooksById *event_hook_by_id, |
1231 | LttvHooks *hook_adder, |
1232 | LttvHooks *hook_remover) |
e62a7964 |
1233 | { |
1234 | LttvAttribute *g_attribute = lttv_global_attributes(); |
1235 | LttvAttribute *attribute; |
1236 | LttvAttributeValue value; |
1237 | |
1238 | g_assert(attribute = |
1239 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
1240 | LTTV_COMPUTATION))); |
1241 | |
1242 | g_assert(attribute = |
1243 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
1244 | module_name))); |
1245 | |
1246 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1247 | LTTV_BEFORE_CHUNK_TRACESET, |
1248 | LTTV_POINTER, |
1249 | &value)); |
1250 | *(value.v_pointer) = before_chunk_traceset; |
1251 | |
1252 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1253 | LTTV_BEFORE_CHUNK_TRACE, |
1254 | LTTV_POINTER, |
1255 | &value)); |
1256 | *(value.v_pointer) = before_chunk_trace; |
1257 | |
1258 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1259 | LTTV_BEFORE_CHUNK_TRACEFILE, |
1260 | LTTV_POINTER, |
1261 | &value)); |
1262 | *(value.v_pointer) = before_chunk_tracefile; |
1263 | |
1264 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1265 | LTTV_AFTER_CHUNK_TRACESET, |
1266 | LTTV_POINTER, |
1267 | &value)); |
1268 | *(value.v_pointer) = after_chunk_traceset; |
1269 | |
1270 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1271 | LTTV_AFTER_CHUNK_TRACE, |
1272 | LTTV_POINTER, |
1273 | &value)); |
1274 | *(value.v_pointer) = after_chunk_trace; |
1275 | |
1276 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1277 | LTTV_AFTER_CHUNK_TRACEFILE, |
1278 | LTTV_POINTER, |
1279 | &value)); |
1280 | *(value.v_pointer) = after_chunk_tracefile; |
1281 | |
1282 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1283 | LTTV_BEFORE_REQUEST, |
1284 | LTTV_POINTER, |
1285 | &value)); |
1286 | *(value.v_pointer) = before_request; |
1287 | |
1288 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1289 | LTTV_AFTER_REQUEST, |
1290 | LTTV_POINTER, |
1291 | &value)); |
1292 | *(value.v_pointer) = after_request; |
1293 | |
1294 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1295 | LTTV_EVENT_HOOK, |
1296 | LTTV_POINTER, |
1297 | &value)); |
1298 | *(value.v_pointer) = event_hook; |
1299 | |
1300 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1301 | LTTV_EVENT_HOOK_BY_ID, |
1302 | LTTV_POINTER, |
1303 | &value)); |
1304 | *(value.v_pointer) = event_hook_by_id; |
1305 | |
313bd6fc |
1306 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1307 | LTTV_HOOK_ADDER, |
1308 | LTTV_POINTER, |
1309 | &value)); |
1310 | *(value.v_pointer) = hook_adder; |
1311 | |
1312 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1313 | LTTV_HOOK_REMOVER, |
1314 | LTTV_POINTER, |
1315 | &value)); |
1316 | *(value.v_pointer) = hook_remover; |
1317 | |
e62a7964 |
1318 | } |
1319 | |
1320 | |
1321 | /** |
1322 | * It removes all the requests than can be currently processed by the |
1323 | * background computation algorithm for all the traces (list_in and list_out). |
1324 | * |
1325 | * Leaves the flag to in_progress or none.. depending if current or queue |
1326 | * |
1327 | * @param module_name A GQuark : the name of the module which computes the |
1328 | * information. |
1329 | */ |
1330 | void lttvwindowtraces_unregister_requests(LttvAttributeName module_name) |
1331 | { |
1332 | guint i; |
1333 | |
1334 | for(i=0;i<lttvwindowtraces_get_number();i++) { |
1335 | LttvTrace *trace_v = lttvwindowtraces_get_trace(i); |
1336 | g_assert(trace_v != NULL); |
1337 | LttTrace *trace; |
1338 | LttvAttribute *attribute = lttv_trace_attribute(trace_v); |
1339 | LttvAttributeValue value; |
313bd6fc |
1340 | GSList **queue, **current; |
e62a7964 |
1341 | GSList *iter; |
1342 | |
1343 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1344 | LTTV_REQUESTS_QUEUE, |
1345 | LTTV_POINTER, |
1346 | &value)); |
313bd6fc |
1347 | queue = (GSList**)(value.v_pointer); |
e62a7964 |
1348 | |
313bd6fc |
1349 | iter = *queue; |
e62a7964 |
1350 | while(iter != NULL) { |
1351 | gboolean remove = FALSE; |
1352 | gboolean free_data = FALSE; |
1353 | |
1354 | BackgroundRequest *bg_req = (BackgroundRequest*)iter->data; |
1355 | |
1356 | if(bg_req->module_name == module_name) { |
1357 | remove = TRUE; |
1358 | free_data = TRUE; |
1359 | } |
1360 | |
1361 | /* Go to next */ |
1362 | if(remove) |
1363 | { |
1364 | GSList *remove_iter = iter; |
1365 | |
1366 | iter = g_slist_next(iter); |
1367 | if(free_data) g_free(remove_iter->data); |
313bd6fc |
1368 | *queue = g_slist_remove_link(*queue, remove_iter); |
e62a7964 |
1369 | } else { // not remove |
1370 | iter = g_slist_next(iter); |
1371 | } |
1372 | } |
1373 | |
1374 | |
1375 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1376 | LTTV_REQUESTS_CURRENT, |
1377 | LTTV_POINTER, |
1378 | &value)); |
313bd6fc |
1379 | current = (GSList**)(value.v_pointer); |
e62a7964 |
1380 | |
313bd6fc |
1381 | iter = *current; |
e62a7964 |
1382 | while(iter != NULL) { |
1383 | gboolean remove = FALSE; |
1384 | gboolean free_data = FALSE; |
1385 | |
1386 | BackgroundRequest *bg_req = (BackgroundRequest*)iter->data; |
1387 | |
1388 | if(bg_req->module_name == module_name) { |
1389 | remove = TRUE; |
1390 | free_data = TRUE; |
1391 | } |
1392 | |
1393 | /* Go to next */ |
1394 | if(remove) |
1395 | { |
1396 | GSList *remove_iter = iter; |
1397 | |
1398 | iter = g_slist_next(iter); |
1399 | if(free_data) g_free(remove_iter->data); |
313bd6fc |
1400 | *current = g_slist_remove_link(*current, remove_iter); |
e62a7964 |
1401 | } else { // not remove |
1402 | iter = g_slist_next(iter); |
1403 | } |
1404 | } |
1405 | } |
1406 | } |
1407 | |
1408 | |
1409 | /** |
1410 | * Unregister the background computation hooks for a specific module. |
1411 | * |
1412 | * It also removes all the requests than can be currently processed by the |
1413 | * background computation algorithm for all the traces (list_in and list_out). |
1414 | * |
1415 | * @param module_name A GQuark : the name of the module which computes the |
1416 | * information. |
1417 | */ |
1418 | |
1419 | void lttvwindowtraces_unregister_computation_hooks |
1420 | (LttvAttributeName module_name) |
1421 | { |
1422 | LttvAttribute *g_attribute = lttv_global_attributes(); |
1423 | LttvAttribute *attribute; |
91fd6881 |
1424 | LttvAttributeValue value; |
e62a7964 |
1425 | |
1426 | g_assert(attribute = |
1427 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
1428 | LTTV_COMPUTATION))); |
1429 | g_assert(attribute = |
1430 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
1431 | module_name))); |
1432 | |
1433 | |
91fd6881 |
1434 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1435 | LTTV_BEFORE_CHUNK_TRACESET, |
1436 | LTTV_POINTER, |
1437 | &value)); |
1438 | LttvHooks *before_chunk_traceset = (LttvHooks*)*(value.v_pointer); |
1439 | if(before_chunk_traceset != NULL) |
1440 | lttv_hooks_destroy(before_chunk_traceset); |
1441 | |
1442 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1443 | LTTV_BEFORE_CHUNK_TRACE, |
1444 | LTTV_POINTER, |
1445 | &value)); |
1446 | LttvHooks *before_chunk_trace = (LttvHooks*)*(value.v_pointer); |
1447 | if(before_chunk_trace != NULL) |
1448 | lttv_hooks_destroy(before_chunk_trace); |
1449 | |
1450 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1451 | LTTV_BEFORE_CHUNK_TRACEFILE, |
1452 | LTTV_POINTER, |
1453 | &value)); |
1454 | LttvHooks *before_chunk_tracefile = (LttvHooks*)*(value.v_pointer); |
1455 | if(before_chunk_tracefile != NULL) |
1456 | lttv_hooks_destroy(before_chunk_tracefile); |
1457 | |
1458 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1459 | LTTV_AFTER_CHUNK_TRACESET, |
1460 | LTTV_POINTER, |
1461 | &value)); |
1462 | LttvHooks *after_chunk_traceset = (LttvHooks*)*(value.v_pointer); |
1463 | if(after_chunk_traceset != NULL) |
1464 | lttv_hooks_destroy(after_chunk_traceset); |
1465 | |
1466 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1467 | LTTV_AFTER_CHUNK_TRACE, |
1468 | LTTV_POINTER, |
1469 | &value)); |
1470 | LttvHooks *after_chunk_trace = (LttvHooks*)*(value.v_pointer); |
1471 | if(after_chunk_trace != NULL) |
1472 | lttv_hooks_destroy(after_chunk_trace); |
1473 | |
1474 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1475 | LTTV_AFTER_CHUNK_TRACEFILE, |
1476 | LTTV_POINTER, |
1477 | &value)); |
1478 | LttvHooks *after_chunk_tracefile = (LttvHooks*)*(value.v_pointer); |
1479 | if(after_chunk_tracefile != NULL) |
1480 | lttv_hooks_destroy(after_chunk_tracefile); |
1481 | |
1482 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1483 | LTTV_BEFORE_REQUEST, |
1484 | LTTV_POINTER, |
1485 | &value)); |
1486 | LttvHooks *before_request = (LttvHooks*)*(value.v_pointer); |
1487 | if(before_request != NULL) |
1488 | lttv_hooks_destroy(before_request); |
1489 | |
1490 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1491 | LTTV_AFTER_REQUEST, |
1492 | LTTV_POINTER, |
1493 | &value)); |
1494 | LttvHooks *after_request = (LttvHooks*)*(value.v_pointer); |
1495 | if(after_request != NULL) |
1496 | lttv_hooks_destroy(after_request); |
1497 | |
1498 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1499 | LTTV_EVENT_HOOK, |
1500 | LTTV_POINTER, |
1501 | &value)); |
1502 | LttvHooks *event_hook = (LttvHooks*)*(value.v_pointer); |
1503 | if(event_hook != NULL) |
1504 | lttv_hooks_destroy(event_hook); |
1505 | |
1506 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1507 | LTTV_EVENT_HOOK_BY_ID, |
1508 | LTTV_POINTER, |
1509 | &value)); |
1510 | LttvHooksById *event_hook_by_id = (LttvHooksById*)*(value.v_pointer); |
1511 | if(event_hook_by_id != NULL) |
1512 | lttv_hooks_by_id_destroy(event_hook_by_id); |
1513 | |
1514 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1515 | LTTV_HOOK_ADDER, |
1516 | LTTV_POINTER, |
1517 | &value)); |
1518 | LttvHooks *hook_adder = (LttvHooks*)*(value.v_pointer); |
1519 | if(hook_adder != NULL) |
1520 | lttv_hooks_destroy(hook_adder); |
1521 | |
1522 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1523 | LTTV_HOOK_REMOVER, |
1524 | LTTV_POINTER, |
1525 | &value)); |
1526 | LttvHooks *hook_remover = (LttvHooks*)*(value.v_pointer); |
1527 | if(hook_remover != NULL) |
1528 | lttv_hooks_destroy(hook_remover); |
1529 | |
1530 | |
e62a7964 |
1531 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1532 | LTTV_EVENT_HOOK_BY_ID); |
1533 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1534 | LTTV_EVENT_HOOK); |
1535 | |
1536 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1537 | LTTV_AFTER_REQUEST); |
1538 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1539 | LTTV_BEFORE_REQUEST); |
1540 | |
1541 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1542 | LTTV_AFTER_CHUNK_TRACEFILE); |
1543 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1544 | LTTV_AFTER_CHUNK_TRACE); |
1545 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1546 | LTTV_AFTER_CHUNK_TRACESET); |
1547 | |
1548 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1549 | LTTV_BEFORE_CHUNK_TRACEFILE); |
1550 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1551 | LTTV_BEFORE_CHUNK_TRACE); |
1552 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1553 | LTTV_BEFORE_CHUNK_TRACESET); |
313bd6fc |
1554 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1555 | LTTV_HOOK_ADDER); |
1556 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1557 | LTTV_HOOK_REMOVER); |
1558 | |
e62a7964 |
1559 | /* finally, remove module name */ |
1560 | g_assert(attribute = |
1561 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
1562 | LTTV_COMPUTATION))); |
1563 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1564 | module_name); |
1565 | |
1566 | } |
1567 | |
b052368a |
1568 | /** |
1569 | * Lock a trace so no other instance can use it. |
1570 | * |
1571 | * @param trace The trace to lock. |
1572 | * @return 0 on success, -1 if cannot get lock. |
1573 | */ |
1574 | gint lttvwindowtraces_lock(LttvTrace *trace) |
1575 | { |
1576 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
1577 | LttvAttributeValue value; |
1578 | LttvAttributeType type; |
1579 | |
1580 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
1581 | LTTV_LOCK, |
1582 | &value); |
1583 | /* Verify the absence of the lock. */ |
1584 | if(type != LTTV_NONE) { |
1585 | g_critical("Cannot take trace lock"); |
1586 | return -1; |
1587 | } |
1588 | |
1589 | value = lttv_iattribute_add(LTTV_IATTRIBUTE(attribute), |
1590 | LTTV_LOCK, |
1591 | LTTV_INT); |
1592 | /* the value is left unset. The only presence of the attribute is necessary. |
1593 | */ |
1594 | |
1595 | return 0; |
1596 | } |
1597 | |
1598 | /** |
1599 | * Unlock a trace. |
1600 | * |
1601 | * @param trace The trace to unlock. |
1602 | * @return 0 on success, -1 if cannot unlock (not locked ?). |
1603 | */ |
1604 | gint lttvwindowtraces_unlock(LttvTrace *trace) |
1605 | { |
1606 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
1607 | LttvAttributeType type; |
1608 | LttvAttributeValue value; |
1609 | |
1610 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
1611 | LTTV_LOCK, |
1612 | &value); |
1613 | /* Verify the presence of the lock. */ |
1614 | if(type == LTTV_NONE) { |
1615 | g_critical("Cannot release trace lock"); |
1616 | return -1; |
1617 | } |
1618 | |
1619 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1620 | LTTV_LOCK); |
1621 | |
1622 | return 0; |
1623 | } |
1624 | |
1625 | /** |
1626 | * Verify if a trace is locked. |
1627 | * |
1628 | * @param trace The trace to verify. |
1629 | * @return TRUE if locked, FALSE is unlocked. |
1630 | */ |
1631 | gint lttvwindowtraces_get_lock_state(LttvTrace *trace) |
1632 | { |
1633 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
1634 | LttvAttributeType type; |
1635 | LttvAttributeValue value; |
1636 | |
1637 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
1638 | LTTV_LOCK, |
1639 | &value); |
1640 | /* The only presence of the attribute is necessary. */ |
1641 | if(type == LTTV_NONE) |
1642 | return FALSE; |
1643 | else |
1644 | return TRUE; |
1645 | } |
e62a7964 |
1646 | |