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); |
8bc02ec8 |
258 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute), |
259 | LTTV_COMPUTATION_TRACESET); |
1ba187d3 |
260 | /* Destroy the traceset and the trace also */ |
261 | lttv_traceset_destroy(ts); |
8bc02ec8 |
262 | |
263 | /* finally, remove the global attribute */ |
a1a2b649 |
264 | lttv_attribute_remove(attribute, i); |
8bc02ec8 |
265 | |
a1a2b649 |
266 | return; |
267 | } |
268 | } |
269 | } |
270 | |
271 | |
272 | /** |
273 | * Function to request data from a specific trace |
274 | * |
275 | * The memory allocated for the request will be managed by the API. |
276 | * |
277 | * @param trace the trace to compute |
278 | * @param module_name the name of the module which registered global computation |
279 | * hooks. |
280 | */ |
281 | |
282 | void lttvwindowtraces_background_request_queue |
283 | (LttvTrace *trace, gchar *module_name) |
284 | { |
285 | BackgroundRequest *bg_req; |
286 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
91fd6881 |
287 | LttvAttribute *g_attribute = lttv_global_attributes(); |
288 | LttvAttribute *module_attribute; |
a1a2b649 |
289 | LttvAttributeValue value; |
91fd6881 |
290 | LttvAttributeType type; |
a1a2b649 |
291 | GSList **slist; |
292 | guint num; |
293 | |
294 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
295 | LTTV_REQUESTS_QUEUE, |
296 | LTTV_POINTER, |
297 | &value)); |
298 | slist = (GSList**)(value.v_pointer); |
91fd6881 |
299 | |
300 | /* Verify that the calculator is loaded */ |
301 | g_assert(module_attribute = |
302 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
303 | LTTV_COMPUTATION))); |
304 | |
305 | |
306 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
307 | g_quark_from_string(module_name), |
308 | &value); |
309 | if(type == LTTV_NONE) { |
310 | g_critical("Missing background calculator %s", module_name); |
311 | return; |
312 | } |
313 | |
a1a2b649 |
314 | bg_req = g_new(BackgroundRequest,1); |
315 | bg_req->module_name = g_quark_from_string(module_name); |
316 | bg_req->trace = trace; |
317 | |
318 | *slist = g_slist_append(*slist, bg_req); |
313bd6fc |
319 | |
320 | /* Priority lower than live servicing */ |
321 | g_idle_remove_by_data(trace); |
322 | g_idle_add_full((G_PRIORITY_HIGH_IDLE + 23), |
323 | (GSourceFunc)lttvwindowtraces_process_pending_requests, |
324 | trace, |
325 | NULL); |
b052368a |
326 | /* FIXME : show message in status bar, need context and message id */ |
327 | g_info("Background computation started for trace %p", trace); |
a1a2b649 |
328 | } |
329 | |
330 | /** |
331 | * Remove a background request from a trace. |
332 | * |
333 | * This should ONLY be used by the modules which registered the global hooks |
334 | * (module_name). If this is called by the viewers, it may lead to incomplete |
335 | * and incoherent background processing information. |
336 | * |
337 | * Even if the module which deals with the hooks removes the background |
338 | * requests, it may cause a problem if the module gets loaded again in the |
339 | * session : the data will be partially calculated. The calculation function |
340 | * must deal with this case correctly. |
341 | * |
342 | * @param trace the trace to compute |
343 | * @param module_name the name of the module which registered global computation |
344 | * hooks. |
345 | */ |
346 | |
347 | void lttvwindowtraces_background_request_remove |
348 | (LttvTrace *trace, gchar *module_name) |
349 | { |
350 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
351 | LttvAttributeValue value; |
352 | GSList *iter = NULL; |
353 | GSList **slist; |
354 | |
355 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
356 | LTTV_REQUESTS_QUEUE, |
357 | LTTV_POINTER, |
358 | &value)); |
359 | slist = (GSList**)(value.v_pointer); |
360 | |
361 | for(iter=*slist;iter!=NULL;) { |
362 | BackgroundRequest *bg_req = |
363 | (BackgroundRequest *)iter->data; |
364 | |
365 | if(bg_req->module_name == g_quark_from_string(module_name)) { |
366 | GSList *rem_iter = iter; |
367 | iter=g_slist_next(iter); |
368 | g_free(bg_req); |
369 | *slist = g_slist_delete_link(*slist, rem_iter); |
370 | } else { |
371 | iter=g_slist_next(iter); |
372 | } |
373 | } |
374 | } |
375 | |
376 | |
377 | /** |
378 | * Register a callback to be called when requested data is passed in the next |
379 | * queued background processing. |
380 | * |
381 | * @param owner owner of the background notification |
382 | * @param trace the trace computed |
383 | * @param notify_time time when notification hooks must be called |
384 | * @param notify_position position when notification hooks must be called |
385 | * @param notify Hook to call when the notify position is passed |
386 | */ |
387 | |
388 | void lttvwindowtraces_background_notify_queue |
389 | (gpointer owner, |
390 | LttvTrace *trace, |
391 | LttTime notify_time, |
392 | const LttvTracesetContextPosition *notify_position, |
393 | const LttvHooks *notify) |
394 | { |
395 | BackgroundNotify *bg_notify; |
396 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
397 | LttvAttributeValue value; |
398 | GSList **slist; |
399 | |
400 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
401 | LTTV_NOTIFY_QUEUE, |
402 | LTTV_POINTER, |
403 | &value)); |
404 | slist = (GSList**)(value.v_pointer); |
405 | |
406 | |
407 | bg_notify = g_new(BackgroundNotify,1); |
408 | |
409 | bg_notify->owner = owner; |
410 | bg_notify->trace = trace; |
411 | bg_notify->notify_time = notify_time; |
313bd6fc |
412 | if(notify_position != NULL) { |
b052368a |
413 | bg_notify->notify_position = lttv_traceset_context_position_new(); |
313bd6fc |
414 | lttv_traceset_context_position_copy(bg_notify->notify_position, |
415 | notify_position); |
416 | } else { |
417 | bg_notify->notify_position = NULL; |
418 | } |
419 | |
a1a2b649 |
420 | bg_notify->notify = lttv_hooks_new(); |
421 | lttv_hooks_add_list(bg_notify->notify, notify); |
422 | |
423 | *slist = g_slist_append(*slist, bg_notify); |
424 | } |
425 | |
426 | /** |
427 | * Register a callback to be called when requested data is passed in the current |
428 | * background processing. |
429 | * |
430 | * @param owner owner of the background notification |
431 | * @param trace the trace computed |
432 | * @param notify_time time when notification hooks must be called |
433 | * @param notify_position position when notification hooks must be called |
434 | * @param notify Hook to call when the notify position is passed |
435 | */ |
436 | |
437 | void lttvwindowtraces_background_notify_current |
438 | (gpointer owner, |
439 | LttvTrace *trace, |
440 | LttTime notify_time, |
441 | const LttvTracesetContextPosition *notify_position, |
442 | const LttvHooks *notify) |
443 | { |
444 | BackgroundNotify *bg_notify; |
445 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
446 | LttvAttributeValue value; |
447 | GSList **slist; |
448 | |
449 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
450 | LTTV_NOTIFY_CURRENT, |
451 | LTTV_POINTER, |
452 | &value)); |
453 | slist = (GSList**)(value.v_pointer); |
454 | |
455 | bg_notify = g_new(BackgroundNotify,1); |
456 | |
457 | bg_notify->owner = owner; |
458 | bg_notify->trace = trace; |
459 | bg_notify->notify_time = notify_time; |
313bd6fc |
460 | if(notify_position!= NULL) { |
b052368a |
461 | bg_notify->notify_position = lttv_traceset_context_position_new(); |
313bd6fc |
462 | lttv_traceset_context_position_copy(bg_notify->notify_position, |
463 | notify_position); |
464 | } else { |
465 | bg_notify->notify_position = NULL; |
466 | } |
a1a2b649 |
467 | bg_notify->notify = lttv_hooks_new(); |
468 | lttv_hooks_add_list(bg_notify->notify, notify); |
469 | |
470 | *slist = g_slist_append(*slist, bg_notify); |
471 | } |
472 | |
b052368a |
473 | |
474 | static void notify_request_free(BackgroundNotify *notify_req) |
475 | { |
476 | if(notify_req == NULL) return; |
477 | |
478 | if(notify_req->notify_position != NULL) |
479 | lttv_traceset_context_position_destroy(notify_req->notify_position); |
480 | if(notify_req->notify != NULL) |
481 | lttv_hooks_destroy(notify_req->notify); |
482 | g_free(notify_req); |
483 | } |
484 | |
a1a2b649 |
485 | /** |
486 | * Removes all the notifications requests from a specific viewer. |
487 | * |
488 | * @param owner owner of the background notification |
489 | */ |
490 | |
491 | void lttvwindowtraces_background_notify_remove(gpointer owner) |
492 | { |
493 | guint i; |
494 | |
495 | for(i=0;i<lttvwindowtraces_get_number();i++) { |
496 | LttvAttribute *attribute; |
497 | LttvAttributeValue value; |
498 | LttvTrace *trace_v = lttvwindowtraces_get_trace(i); |
499 | GSList **slist; |
500 | GSList *iter = NULL; |
501 | |
502 | g_assert(trace_v != NULL); |
503 | |
b052368a |
504 | attribute = lttv_trace_attribute(trace_v); |
a1a2b649 |
505 | |
506 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
507 | LTTV_NOTIFY_QUEUE, |
508 | LTTV_POINTER, |
509 | &value)); |
510 | slist = (GSList**)(value.v_pointer); |
511 | |
512 | for(iter=*slist;iter!=NULL;) { |
513 | |
514 | BackgroundNotify *bg_notify = (BackgroundNotify*)iter->data; |
515 | |
516 | if(bg_notify->owner == owner) { |
517 | GSList *rem_iter = iter; |
518 | iter=g_slist_next(iter); |
b052368a |
519 | notify_request_free(bg_notify); |
520 | *slist = g_slist_remove_link(*slist, rem_iter); |
a1a2b649 |
521 | } else { |
522 | iter=g_slist_next(iter); |
523 | } |
524 | } |
525 | |
526 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
527 | LTTV_NOTIFY_CURRENT, |
528 | LTTV_POINTER, |
529 | &value)); |
530 | slist = (GSList**)(value.v_pointer); |
531 | |
532 | for(iter=*slist;iter!=NULL;) { |
533 | |
534 | BackgroundNotify *bg_notify = (BackgroundNotify*)iter->data; |
535 | |
536 | if(bg_notify->owner == owner) { |
537 | GSList *rem_iter = iter; |
538 | iter=g_slist_next(iter); |
b052368a |
539 | notify_request_free(bg_notify); |
540 | *slist = g_slist_remove_link(*slist, rem_iter); |
a1a2b649 |
541 | } else { |
542 | iter=g_slist_next(iter); |
543 | } |
544 | } |
545 | } |
546 | } |
547 | |
8bc02ec8 |
548 | |
549 | /* Background processing helper functions */ |
550 | |
551 | void lttvwindowtraces_add_computation_hooks(LttvAttributeName module_name, |
1ce324c6 |
552 | LttvTracesetContext *tsc, |
553 | LttvHooks *hook_adder) |
8bc02ec8 |
554 | { |
555 | LttvAttribute *g_attribute = lttv_global_attributes(); |
556 | LttvAttribute *module_attribute; |
557 | LttvAttributeType type; |
558 | LttvAttributeValue value; |
559 | LttvHooks *before_chunk_traceset=NULL; |
560 | LttvHooks *before_chunk_trace=NULL; |
561 | LttvHooks *before_chunk_tracefile=NULL; |
562 | LttvHooks *event_hook=NULL; |
563 | LttvHooksById *event_hook_by_id=NULL; |
313bd6fc |
564 | LttvTracesetStats *tss = LTTV_TRACESET_STATS(tsc); |
8bc02ec8 |
565 | |
566 | |
567 | g_assert(module_attribute = |
568 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
569 | LTTV_COMPUTATION))); |
570 | |
571 | g_assert(module_attribute = |
572 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir( |
573 | LTTV_IATTRIBUTE(module_attribute), |
574 | module_name))); |
575 | |
576 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
577 | LTTV_BEFORE_CHUNK_TRACESET, |
578 | &value); |
579 | if(type == LTTV_POINTER) { |
580 | before_chunk_traceset = (LttvHooks*)*(value.v_pointer); |
581 | } |
582 | |
583 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
584 | LTTV_BEFORE_CHUNK_TRACE, |
585 | &value); |
586 | if(type == LTTV_POINTER) { |
587 | before_chunk_trace = (LttvHooks*)*(value.v_pointer); |
588 | } |
589 | |
590 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
591 | LTTV_BEFORE_CHUNK_TRACEFILE, |
592 | &value); |
593 | if(type == LTTV_POINTER) { |
594 | before_chunk_tracefile = (LttvHooks*)*(value.v_pointer); |
595 | } |
596 | |
597 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
598 | LTTV_EVENT_HOOK, |
599 | &value); |
600 | if(type == LTTV_POINTER) { |
601 | event_hook = (LttvHooks*)*(value.v_pointer); |
602 | } |
603 | |
604 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
605 | LTTV_EVENT_HOOK_BY_ID, |
606 | &value); |
607 | if(type == LTTV_POINTER) { |
608 | event_hook_by_id = (LttvHooksById*)*(value.v_pointer); |
609 | } |
610 | |
313bd6fc |
611 | /* Call the module's hook adder */ |
612 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
613 | LTTV_HOOK_ADDER, |
614 | &value); |
615 | if(type == LTTV_POINTER) { |
1ce324c6 |
616 | //lttv_hooks_call((LttvHooks*)*(value.v_pointer), (gpointer)tss); |
617 | if(hook_adder != NULL) |
618 | lttv_hooks_add_list(hook_adder, (LttvHooks*)*(value.v_pointer)); |
313bd6fc |
619 | } |
620 | |
621 | |
8bc02ec8 |
622 | |
623 | lttv_process_traceset_begin(tsc, |
624 | before_chunk_traceset, |
625 | before_chunk_trace, |
626 | before_chunk_tracefile, |
627 | event_hook, |
628 | event_hook_by_id); |
629 | |
630 | } |
631 | |
632 | void lttvwindowtraces_remove_computation_hooks(LttvAttributeName module_name, |
1ce324c6 |
633 | LttvTracesetContext *tsc, |
634 | LttvHooks *hook_remover) |
8bc02ec8 |
635 | { |
636 | LttvAttribute *g_attribute = lttv_global_attributes(); |
637 | LttvAttribute *module_attribute; |
638 | LttvAttributeType type; |
639 | LttvAttributeValue value; |
640 | LttvHooks *after_chunk_traceset=NULL; |
641 | LttvHooks *after_chunk_trace=NULL; |
642 | LttvHooks *after_chunk_tracefile=NULL; |
643 | LttvHooks *event_hook=NULL; |
644 | LttvHooksById *event_hook_by_id=NULL; |
313bd6fc |
645 | LttvTracesetStats *tss = LTTV_TRACESET_STATS(tsc); |
8bc02ec8 |
646 | |
647 | g_assert(module_attribute = |
648 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
649 | LTTV_COMPUTATION))); |
650 | |
651 | g_assert(module_attribute = |
652 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir( |
653 | LTTV_IATTRIBUTE(module_attribute), |
654 | module_name))); |
655 | |
656 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
657 | LTTV_AFTER_CHUNK_TRACESET, |
658 | &value); |
659 | if(type == LTTV_POINTER) { |
660 | after_chunk_traceset = (LttvHooks*)*(value.v_pointer); |
661 | } |
662 | |
663 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
664 | LTTV_AFTER_CHUNK_TRACE, |
665 | &value); |
666 | if(type == LTTV_POINTER) { |
667 | after_chunk_trace = (LttvHooks*)*(value.v_pointer); |
668 | } |
669 | |
670 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
671 | LTTV_AFTER_CHUNK_TRACEFILE, |
672 | &value); |
673 | if(type == LTTV_POINTER) { |
674 | after_chunk_tracefile = (LttvHooks*)*(value.v_pointer); |
675 | } |
676 | |
677 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
678 | LTTV_EVENT_HOOK, |
679 | &value); |
680 | if(type == LTTV_POINTER) { |
681 | event_hook = (LttvHooks*)*(value.v_pointer); |
682 | } |
683 | |
684 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
685 | LTTV_EVENT_HOOK_BY_ID, |
686 | &value); |
687 | if(type == LTTV_POINTER) { |
688 | event_hook_by_id = (LttvHooksById*)*(value.v_pointer); |
689 | } |
313bd6fc |
690 | |
8bc02ec8 |
691 | lttv_process_traceset_end(tsc, |
692 | after_chunk_traceset, |
693 | after_chunk_trace, |
694 | after_chunk_tracefile, |
695 | event_hook, |
696 | event_hook_by_id); |
313bd6fc |
697 | |
698 | /* Call the module's hook remover */ |
699 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
700 | LTTV_HOOK_REMOVER, |
701 | &value); |
702 | if(type == LTTV_POINTER) { |
1ce324c6 |
703 | //lttv_hooks_call((LttvHooks*)*(value.v_pointer), (gpointer)tss); |
704 | if(hook_remover != NULL) |
705 | lttv_hooks_add_list(hook_remover, (LttvHooks*)*(value.v_pointer)); |
313bd6fc |
706 | } |
8bc02ec8 |
707 | } |
708 | |
709 | |
710 | void lttvwindowtraces_set_in_progress(LttvAttributeName module_name, |
711 | LttvTrace *trace) |
712 | { |
713 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
714 | LttvAttributeValue value; |
715 | |
716 | g_assert(attribute = |
717 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
718 | module_name))); |
719 | |
720 | value = lttv_iattribute_add(LTTV_IATTRIBUTE(attribute), |
721 | LTTV_IN_PROGRESS, |
722 | LTTV_INT); |
723 | /* the value is left unset. The only presence of the attribute is necessary. |
724 | */ |
725 | } |
726 | |
727 | void lttvwindowtraces_unset_in_progress(LttvAttributeName module_name, |
728 | LttvTrace *trace) |
729 | { |
730 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
731 | |
732 | g_assert(attribute = |
733 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
734 | module_name))); |
735 | |
313bd6fc |
736 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
8bc02ec8 |
737 | LTTV_IN_PROGRESS); |
738 | } |
739 | |
740 | gboolean lttvwindowtraces_get_in_progress(LttvAttributeName module_name, |
741 | LttvTrace *trace) |
742 | { |
743 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
744 | LttvAttributeType type; |
745 | LttvAttributeValue value; |
746 | |
747 | g_assert(attribute = |
748 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
749 | module_name))); |
750 | |
751 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
752 | LTTV_IN_PROGRESS, |
753 | &value); |
754 | /* The only presence of the attribute is necessary. */ |
755 | if(type == LTTV_NONE) |
756 | return FALSE; |
757 | else |
758 | return TRUE; |
759 | } |
760 | |
761 | void lttvwindowtraces_set_ready(LttvAttributeName module_name, |
762 | LttvTrace *trace) |
763 | { |
764 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
765 | LttvAttributeValue value; |
766 | |
767 | g_assert(attribute = |
768 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
769 | module_name))); |
770 | |
771 | value = lttv_iattribute_add(LTTV_IATTRIBUTE(attribute), |
772 | LTTV_READY, |
773 | LTTV_INT); |
774 | /* the value is left unset. The only presence of the attribute is necessary. |
775 | */ |
776 | } |
777 | |
778 | void lttvwindowtraces_unset_ready(LttvAttributeName module_name, |
779 | LttvTrace *trace) |
780 | { |
781 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
782 | |
783 | g_assert(attribute = |
784 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
785 | module_name))); |
786 | |
313bd6fc |
787 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
8bc02ec8 |
788 | LTTV_READY); |
789 | } |
790 | |
791 | gboolean lttvwindowtraces_get_ready(LttvAttributeName module_name, |
792 | LttvTrace *trace) |
793 | { |
794 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
795 | LttvAttributeType type; |
796 | LttvAttributeValue value; |
797 | |
798 | g_assert(attribute = |
799 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
800 | module_name))); |
801 | |
802 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
803 | LTTV_READY, |
804 | &value); |
805 | /* The only presence of the attribute is necessary. */ |
806 | if(type == LTTV_NONE) |
807 | return FALSE; |
808 | else |
809 | return TRUE; |
810 | } |
811 | |
812 | |
8bc02ec8 |
813 | /* lttvwindowtraces_process_pending_requests |
814 | * |
815 | * This internal function gets called by g_idle, taking care of the pending |
816 | * requests. |
817 | * |
818 | */ |
819 | |
820 | |
821 | gboolean lttvwindowtraces_process_pending_requests(LttvTrace *trace) |
822 | { |
823 | LttvTracesetContext *tsc; |
313bd6fc |
824 | LttvTracesetStats *tss; |
8bc02ec8 |
825 | LttvTraceset *ts; |
826 | LttvAttribute *attribute; |
91fd6881 |
827 | LttvAttribute *g_attribute = lttv_global_attributes(); |
313bd6fc |
828 | GSList **list_out, **list_in, **notify_in, **notify_out; |
8bc02ec8 |
829 | LttvAttributeValue value; |
830 | LttvAttributeType type; |
b052368a |
831 | gboolean ret_val; |
91fd6881 |
832 | LttvHooks *before_request, *after_request; |
8bc02ec8 |
833 | |
313bd6fc |
834 | if(trace == NULL) |
8bc02ec8 |
835 | return FALSE; |
836 | |
837 | attribute = lttv_trace_attribute(trace); |
838 | |
839 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
840 | LTTV_REQUESTS_QUEUE, |
841 | &value); |
842 | g_assert(type == LTTV_POINTER); |
313bd6fc |
843 | list_out = (GSList**)(value.v_pointer); |
8bc02ec8 |
844 | |
845 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
846 | LTTV_REQUESTS_CURRENT, |
847 | &value); |
848 | g_assert(type == LTTV_POINTER); |
313bd6fc |
849 | list_in = (GSList**)(value.v_pointer); |
8bc02ec8 |
850 | |
851 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
852 | LTTV_NOTIFY_QUEUE, |
853 | &value); |
854 | g_assert(type == LTTV_POINTER); |
313bd6fc |
855 | notify_out = (GSList**)(value.v_pointer); |
8bc02ec8 |
856 | |
857 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
858 | LTTV_NOTIFY_CURRENT, |
859 | &value); |
860 | g_assert(type == LTTV_POINTER); |
313bd6fc |
861 | notify_in = (GSList**)(value.v_pointer); |
8bc02ec8 |
862 | |
863 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
864 | LTTV_COMPUTATION_TRACESET, |
865 | &value); |
866 | g_assert(type == LTTV_POINTER); |
867 | ts = (LttvTraceset*)*(value.v_pointer); |
868 | |
869 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
870 | LTTV_COMPUTATION_TRACESET_CONTEXT, |
871 | &value); |
872 | g_assert(type == LTTV_POINTER); |
873 | tsc = (LttvTracesetContext*)*(value.v_pointer); |
313bd6fc |
874 | tss = (LttvTracesetStats*)*(value.v_pointer); |
8bc02ec8 |
875 | g_assert(LTTV_IS_TRACESET_CONTEXT(tsc)); |
313bd6fc |
876 | g_assert(LTTV_IS_TRACESET_STATS(tss)); |
8bc02ec8 |
877 | |
878 | /* There is no events requests pending : we should never have been called! */ |
313bd6fc |
879 | g_assert(g_slist_length(*list_out) != 0 || g_slist_length(*list_in) != 0); |
8bc02ec8 |
880 | |
b052368a |
881 | /* 0.1 Lock traces */ |
882 | { |
883 | guint iter_trace=0; |
884 | |
885 | for(iter_trace=0; |
886 | iter_trace<lttv_traceset_number(tsc->ts); |
887 | iter_trace++) { |
888 | LttvTrace *trace_v = lttv_traceset_get(tsc->ts,iter_trace); |
889 | |
890 | if(lttvwindowtraces_lock(trace_v) != 0) |
891 | return TRUE; /* Cannot get trace lock, try later */ |
8bc02ec8 |
892 | |
b052368a |
893 | } |
894 | } |
895 | /* 0.2 Sync tracefiles */ |
896 | lttv_process_traceset_synchronize_tracefiles(tsc); |
8bc02ec8 |
897 | |
898 | /* 1. Before processing */ |
899 | { |
900 | /* if list_in is empty */ |
313bd6fc |
901 | if(g_slist_length(*list_in) == 0) { |
8bc02ec8 |
902 | |
903 | { |
904 | /* - Add all requests in list_out to list_in, empty list_out */ |
313bd6fc |
905 | GSList *iter = *list_out; |
8bc02ec8 |
906 | |
907 | while(iter != NULL) { |
908 | gboolean remove = FALSE; |
909 | gboolean free_data = FALSE; |
910 | |
911 | BackgroundRequest *bg_req = (BackgroundRequest*)iter->data; |
912 | |
913 | remove = TRUE; |
914 | free_data = FALSE; |
313bd6fc |
915 | *list_in = g_slist_append(*list_in, bg_req); |
8bc02ec8 |
916 | |
917 | /* Go to next */ |
918 | if(remove) |
919 | { |
920 | GSList *remove_iter = iter; |
921 | |
922 | iter = g_slist_next(iter); |
923 | if(free_data) g_free(remove_iter->data); |
313bd6fc |
924 | *list_out = g_slist_remove_link(*list_out, remove_iter); |
8bc02ec8 |
925 | } else { // not remove |
926 | iter = g_slist_next(iter); |
927 | } |
928 | } |
929 | } |
930 | |
931 | { |
313bd6fc |
932 | GSList *iter = *list_in; |
8bc02ec8 |
933 | /* - for each request in list_in */ |
934 | while(iter != NULL) { |
935 | |
936 | BackgroundRequest *bg_req = (BackgroundRequest*)iter->data; |
91fd6881 |
937 | /* - set hooks'in_progress flag to TRUE */ |
8bc02ec8 |
938 | lttvwindowtraces_set_in_progress(bg_req->module_name, |
939 | bg_req->trace); |
91fd6881 |
940 | |
941 | /* - call before request hook */ |
942 | /* Get before request hook */ |
943 | LttvAttribute *module_attribute; |
944 | |
945 | g_assert(module_attribute = |
946 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir( |
947 | LTTV_IATTRIBUTE(g_attribute), |
948 | LTTV_COMPUTATION))); |
949 | |
950 | g_assert(module_attribute = |
951 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir( |
952 | LTTV_IATTRIBUTE(module_attribute), |
953 | bg_req->module_name))); |
954 | |
955 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
956 | LTTV_BEFORE_REQUEST, |
957 | &value); |
958 | g_assert(type == LTTV_POINTER); |
959 | LttvHooks *before_request = (LttvHooks*)*(value.v_pointer); |
960 | |
961 | |
962 | if(before_request != NULL) lttv_hooks_call(before_request, tsc); |
8bc02ec8 |
963 | |
964 | iter = g_slist_next(iter); |
965 | } |
966 | } |
967 | |
968 | /* - seek trace to start */ |
969 | { |
970 | LttTime start = { 0, 0}; |
971 | lttv_process_traceset_seek_time(tsc, start); |
972 | } |
973 | |
974 | /* - Move all notifications from notify_out to notify_in. */ |
975 | { |
313bd6fc |
976 | GSList *iter = *notify_out; |
977 | g_assert(g_slist_length(*notify_in) == 0); |
8bc02ec8 |
978 | |
979 | while(iter != NULL) { |
980 | gboolean remove = FALSE; |
981 | gboolean free_data = FALSE; |
982 | |
983 | BackgroundNotify *notify_req = (BackgroundNotify*)iter->data; |
984 | |
985 | remove = TRUE; |
986 | free_data = FALSE; |
313bd6fc |
987 | *notify_in = g_slist_append(*notify_in, notify_req); |
8bc02ec8 |
988 | |
989 | /* Go to next */ |
990 | if(remove) |
991 | { |
992 | GSList *remove_iter = iter; |
993 | |
994 | iter = g_slist_next(iter); |
b052368a |
995 | if(free_data) |
996 | notify_request_free((BackgroundNotify*)remove_iter->data); |
313bd6fc |
997 | *notify_out = g_slist_remove_link(*notify_out, remove_iter); |
8bc02ec8 |
998 | } else { // not remove |
999 | iter = g_slist_next(iter); |
1000 | } |
1001 | } |
1002 | } |
1003 | } |
1004 | |
1005 | { |
313bd6fc |
1006 | GSList *iter = *list_in; |
1ce324c6 |
1007 | LttvHooks *hook_adder = lttv_hooks_new(); |
8bc02ec8 |
1008 | /* - for each request in list_in */ |
1009 | while(iter != NULL) { |
1010 | |
1011 | BackgroundRequest *bg_req = (BackgroundRequest*)iter->data; |
1012 | /*- Call before chunk hooks for list_in*/ |
1013 | /*- add hooks to context*/ |
1014 | lttvwindowtraces_add_computation_hooks(bg_req->module_name, |
1ce324c6 |
1015 | tsc, |
1016 | hook_adder); |
8bc02ec8 |
1017 | iter = g_slist_next(iter); |
1018 | } |
1ce324c6 |
1019 | lttv_hooks_call(hook_adder,tsc); |
1020 | lttv_hooks_destroy(hook_adder); |
8bc02ec8 |
1021 | } |
1022 | } |
1023 | |
1024 | /* 2. call process traceset middle for a chunk */ |
1025 | { |
1026 | /*(assert list_in is not empty! : should not even be called in that case)*/ |
0aa6c3a1 |
1027 | LttTime end = ltt_time_infinite; |
313bd6fc |
1028 | g_assert(g_slist_length(*list_in) != 0); |
8bc02ec8 |
1029 | |
1030 | lttv_process_traceset_middle(tsc, end, CHUNK_NUM_EVENTS, NULL); |
1031 | } |
1032 | |
1033 | /* 3. After the chunk */ |
1034 | { |
1035 | /* 3.1 call after_chunk hooks for list_in */ |
1036 | { |
313bd6fc |
1037 | GSList *iter = *list_in; |
1ce324c6 |
1038 | LttvHooks *hook_remover = lttv_hooks_new(); |
8bc02ec8 |
1039 | /* - for each request in list_in */ |
1040 | while(iter != NULL) { |
1041 | |
1042 | BackgroundRequest *bg_req = (BackgroundRequest*)iter->data; |
1043 | /* - Call after chunk hooks for list_in */ |
1044 | /* - remove hooks from context */ |
1045 | lttvwindowtraces_remove_computation_hooks(bg_req->module_name, |
1ce324c6 |
1046 | tsc, |
1047 | hook_remover); |
8bc02ec8 |
1048 | iter = g_slist_next(iter); |
1049 | } |
1ce324c6 |
1050 | lttv_hooks_call(hook_remover,tsc); |
1051 | lttv_hooks_destroy(hook_remover); |
8bc02ec8 |
1052 | } |
1053 | |
1054 | /* 3.2 for each notify_in */ |
1055 | { |
313bd6fc |
1056 | GSList *iter = *notify_in; |
8bc02ec8 |
1057 | LttvTracefileContext *tfc = lttv_traceset_context_get_current_tfc(tsc); |
1058 | |
1059 | while(iter != NULL) { |
1060 | gboolean remove = FALSE; |
1061 | gboolean free_data = FALSE; |
1062 | |
1063 | BackgroundNotify *notify_req = (BackgroundNotify*)iter->data; |
1064 | |
1065 | /* - if current time >= notify time, call notify and remove from |
1066 | * notify_in. |
1067 | * - if current position >= notify position, call notify and remove |
1068 | * from notify_in. |
1069 | */ |
1070 | if( (tfc != NULL && |
313bd6fc |
1071 | ltt_time_compare(notify_req->notify_time, tfc->timestamp) <= 0) |
8bc02ec8 |
1072 | || |
313bd6fc |
1073 | (notify_req->notify_position != NULL && |
1074 | lttv_traceset_context_ctx_pos_compare(tsc, |
1075 | notify_req->notify_position) >= 0) |
8bc02ec8 |
1076 | ) { |
1077 | |
1078 | lttv_hooks_call(notify_req->notify, notify_req); |
1079 | |
1080 | remove = TRUE; |
1081 | free_data = TRUE; |
1082 | } |
1083 | |
1084 | /* Go to next */ |
1085 | if(remove) |
1086 | { |
1087 | GSList *remove_iter = iter; |
1088 | |
1089 | iter = g_slist_next(iter); |
b052368a |
1090 | if(free_data) |
1091 | notify_request_free((BackgroundNotify*)remove_iter->data); |
313bd6fc |
1092 | *notify_in = g_slist_remove_link(*notify_in, remove_iter); |
8bc02ec8 |
1093 | } else { // not remove |
1094 | iter = g_slist_next(iter); |
1095 | } |
1096 | } |
1097 | } |
1098 | |
1099 | { |
1100 | LttvTracefileContext *tfc = lttv_traceset_context_get_current_tfc(tsc); |
1101 | /* 3.3 if end of trace reached */ |
313bd6fc |
1102 | if(tfc != NULL) |
1103 | g_debug("Current time : %lu sec, %lu nsec", |
1104 | tfc->timestamp.tv_sec, tfc->timestamp.tv_nsec); |
8bc02ec8 |
1105 | if(tfc == NULL || ltt_time_compare(tfc->timestamp, |
1106 | tsc->time_span.end_time) > 0) { |
1107 | |
1108 | /* - for each request in list_in */ |
1109 | { |
313bd6fc |
1110 | GSList *iter = *list_in; |
8bc02ec8 |
1111 | |
1112 | while(iter != NULL) { |
1113 | gboolean remove = FALSE; |
1114 | gboolean free_data = FALSE; |
1115 | |
1116 | BackgroundRequest *bg_req = (BackgroundRequest*)iter->data; |
1117 | |
1118 | /* - set hooks'in_progress flag to FALSE */ |
1119 | lttvwindowtraces_unset_in_progress(bg_req->module_name, |
1120 | bg_req->trace); |
1121 | /* - set hooks'ready flag to TRUE */ |
1122 | lttvwindowtraces_set_ready(bg_req->module_name, |
1123 | bg_req->trace); |
91fd6881 |
1124 | /* - call after request hook */ |
1125 | /* Get after request hook */ |
1126 | LttvAttribute *module_attribute; |
1127 | |
1128 | g_assert(module_attribute = |
1129 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir( |
1130 | LTTV_IATTRIBUTE(g_attribute), |
1131 | LTTV_COMPUTATION))); |
1132 | |
1133 | g_assert(module_attribute = |
1134 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir( |
1135 | LTTV_IATTRIBUTE(module_attribute), |
1136 | bg_req->module_name))); |
1137 | |
1138 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute), |
1139 | LTTV_AFTER_REQUEST, |
1140 | &value); |
1141 | g_assert(type == LTTV_POINTER); |
1142 | LttvHooks *after_request = (LttvHooks*)*(value.v_pointer); |
1143 | |
1144 | if(after_request != NULL) lttv_hooks_call(after_request, tsc); |
8bc02ec8 |
1145 | /* - remove request */ |
1146 | remove = TRUE; |
1147 | free_data = TRUE; |
1148 | |
1149 | /* Go to next */ |
1150 | if(remove) |
1151 | { |
1152 | GSList *remove_iter = iter; |
1153 | |
1154 | iter = g_slist_next(iter); |
1155 | if(free_data) g_free(remove_iter->data); |
313bd6fc |
1156 | *list_in = g_slist_remove_link(*list_in, remove_iter); |
8bc02ec8 |
1157 | } else { // not remove |
1158 | iter = g_slist_next(iter); |
1159 | } |
1160 | } |
1161 | } |
1162 | |
1163 | /* - for each notifications in notify_in */ |
1164 | { |
313bd6fc |
1165 | GSList *iter = *notify_in; |
8bc02ec8 |
1166 | |
1167 | while(iter != NULL) { |
1168 | gboolean remove = FALSE; |
1169 | gboolean free_data = FALSE; |
1170 | |
1171 | BackgroundNotify *notify_req = (BackgroundNotify*)iter->data; |
1172 | |
1173 | /* - call notify and remove from notify_in */ |
1174 | lttv_hooks_call(notify_req->notify, notify_req); |
1175 | remove = TRUE; |
1176 | free_data = TRUE; |
1177 | |
1178 | /* Go to next */ |
1179 | if(remove) |
1180 | { |
1181 | GSList *remove_iter = iter; |
1182 | |
1183 | iter = g_slist_next(iter); |
b052368a |
1184 | if(free_data) |
1185 | notify_request_free((BackgroundNotify*)remove_iter->data); |
313bd6fc |
1186 | *notify_in = g_slist_remove_link(*notify_in, remove_iter); |
8bc02ec8 |
1187 | } else { // not remove |
1188 | iter = g_slist_next(iter); |
1189 | } |
1190 | } |
1191 | } |
1ce324c6 |
1192 | { |
1193 | /* - reset the context */ |
1194 | LTTV_TRACESET_CONTEXT_GET_CLASS(tsc)->fini(tsc); |
1195 | LTTV_TRACESET_CONTEXT_GET_CLASS(tsc)->init(tsc,ts); |
1196 | } |
3710295e |
1197 | /* - if list_out is empty */ |
1198 | if(g_slist_length(*list_out) == 0) { |
1199 | /* - return FALSE (scheduler stopped) */ |
1200 | g_debug("Background computation scheduler stopped"); |
1201 | g_info("Background computation finished for trace %p", trace); |
1202 | /* FIXME : remove status bar info, need context id and message id */ |
1203 | ret_val = FALSE; |
1204 | } else { |
1205 | ret_val = TRUE; |
1206 | } |
8bc02ec8 |
1207 | } else { |
1208 | /* 3.4 else, end of trace not reached */ |
1209 | /* - return TRUE (scheduler still registered) */ |
313bd6fc |
1210 | g_debug("Background computation left"); |
b052368a |
1211 | ret_val = TRUE; |
8bc02ec8 |
1212 | } |
1213 | } |
1214 | } |
b052368a |
1215 | /* 4. Unlock traces */ |
1216 | { |
1217 | //lttv_process_traceset_get_sync_data(tsc); |
1218 | guint iter_trace; |
1219 | |
1220 | for(iter_trace=0; |
1221 | iter_trace<lttv_traceset_number(tsc->ts); |
1222 | iter_trace++) { |
1223 | LttvTrace *trace_v = lttv_traceset_get(tsc->ts, iter_trace); |
1224 | |
1225 | lttvwindowtraces_unlock(trace_v); |
1226 | } |
1227 | } |
1228 | return ret_val; |
8bc02ec8 |
1229 | } |
e62a7964 |
1230 | |
1231 | |
1232 | |
1233 | /** |
1234 | * Register the background computation hooks for a specific module. It adds the |
313bd6fc |
1235 | * computation hooks to the global attrubutes, under "computation/module name". |
e62a7964 |
1236 | * |
1237 | * @param module_name A GQuark : the name of the module which computes the |
1238 | * information. |
1239 | */ |
1240 | void lttvwindowtraces_register_computation_hooks(LttvAttributeName module_name, |
1241 | LttvHooks *before_chunk_traceset, |
1242 | LttvHooks *before_chunk_trace, |
1243 | LttvHooks *before_chunk_tracefile, |
1244 | LttvHooks *after_chunk_traceset, |
1245 | LttvHooks *after_chunk_trace, |
1246 | LttvHooks *after_chunk_tracefile, |
1247 | LttvHooks *before_request, |
1248 | LttvHooks *after_request, |
1249 | LttvHooks *event_hook, |
313bd6fc |
1250 | LttvHooksById *event_hook_by_id, |
1251 | LttvHooks *hook_adder, |
1252 | LttvHooks *hook_remover) |
e62a7964 |
1253 | { |
1254 | LttvAttribute *g_attribute = lttv_global_attributes(); |
1255 | LttvAttribute *attribute; |
1256 | LttvAttributeValue value; |
1257 | |
1258 | g_assert(attribute = |
1259 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
1260 | LTTV_COMPUTATION))); |
1261 | |
1262 | g_assert(attribute = |
1263 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
1264 | module_name))); |
1265 | |
1266 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1267 | LTTV_BEFORE_CHUNK_TRACESET, |
1268 | LTTV_POINTER, |
1269 | &value)); |
1270 | *(value.v_pointer) = before_chunk_traceset; |
1271 | |
1272 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1273 | LTTV_BEFORE_CHUNK_TRACE, |
1274 | LTTV_POINTER, |
1275 | &value)); |
1276 | *(value.v_pointer) = before_chunk_trace; |
1277 | |
1278 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1279 | LTTV_BEFORE_CHUNK_TRACEFILE, |
1280 | LTTV_POINTER, |
1281 | &value)); |
1282 | *(value.v_pointer) = before_chunk_tracefile; |
1283 | |
1284 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1285 | LTTV_AFTER_CHUNK_TRACESET, |
1286 | LTTV_POINTER, |
1287 | &value)); |
1288 | *(value.v_pointer) = after_chunk_traceset; |
1289 | |
1290 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1291 | LTTV_AFTER_CHUNK_TRACE, |
1292 | LTTV_POINTER, |
1293 | &value)); |
1294 | *(value.v_pointer) = after_chunk_trace; |
1295 | |
1296 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1297 | LTTV_AFTER_CHUNK_TRACEFILE, |
1298 | LTTV_POINTER, |
1299 | &value)); |
1300 | *(value.v_pointer) = after_chunk_tracefile; |
1301 | |
1302 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1303 | LTTV_BEFORE_REQUEST, |
1304 | LTTV_POINTER, |
1305 | &value)); |
1306 | *(value.v_pointer) = before_request; |
1307 | |
1308 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1309 | LTTV_AFTER_REQUEST, |
1310 | LTTV_POINTER, |
1311 | &value)); |
1312 | *(value.v_pointer) = after_request; |
1313 | |
1314 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1315 | LTTV_EVENT_HOOK, |
1316 | LTTV_POINTER, |
1317 | &value)); |
1318 | *(value.v_pointer) = event_hook; |
1319 | |
1320 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1321 | LTTV_EVENT_HOOK_BY_ID, |
1322 | LTTV_POINTER, |
1323 | &value)); |
1324 | *(value.v_pointer) = event_hook_by_id; |
1325 | |
313bd6fc |
1326 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1327 | LTTV_HOOK_ADDER, |
1328 | LTTV_POINTER, |
1329 | &value)); |
1330 | *(value.v_pointer) = hook_adder; |
1331 | |
1332 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1333 | LTTV_HOOK_REMOVER, |
1334 | LTTV_POINTER, |
1335 | &value)); |
1336 | *(value.v_pointer) = hook_remover; |
1337 | |
e62a7964 |
1338 | } |
1339 | |
1340 | |
1341 | /** |
1342 | * It removes all the requests than can be currently processed by the |
1343 | * background computation algorithm for all the traces (list_in and list_out). |
1344 | * |
1345 | * Leaves the flag to in_progress or none.. depending if current or queue |
1346 | * |
1347 | * @param module_name A GQuark : the name of the module which computes the |
1348 | * information. |
1349 | */ |
1350 | void lttvwindowtraces_unregister_requests(LttvAttributeName module_name) |
1351 | { |
1352 | guint i; |
1353 | |
1354 | for(i=0;i<lttvwindowtraces_get_number();i++) { |
1355 | LttvTrace *trace_v = lttvwindowtraces_get_trace(i); |
1356 | g_assert(trace_v != NULL); |
1357 | LttTrace *trace; |
1358 | LttvAttribute *attribute = lttv_trace_attribute(trace_v); |
1359 | LttvAttributeValue value; |
313bd6fc |
1360 | GSList **queue, **current; |
e62a7964 |
1361 | GSList *iter; |
1362 | |
1363 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1364 | LTTV_REQUESTS_QUEUE, |
1365 | LTTV_POINTER, |
1366 | &value)); |
313bd6fc |
1367 | queue = (GSList**)(value.v_pointer); |
e62a7964 |
1368 | |
313bd6fc |
1369 | iter = *queue; |
e62a7964 |
1370 | while(iter != NULL) { |
1371 | gboolean remove = FALSE; |
1372 | gboolean free_data = FALSE; |
1373 | |
1374 | BackgroundRequest *bg_req = (BackgroundRequest*)iter->data; |
1375 | |
1376 | if(bg_req->module_name == module_name) { |
1377 | remove = TRUE; |
1378 | free_data = TRUE; |
1379 | } |
1380 | |
1381 | /* Go to next */ |
1382 | if(remove) |
1383 | { |
1384 | GSList *remove_iter = iter; |
1385 | |
1386 | iter = g_slist_next(iter); |
1387 | if(free_data) g_free(remove_iter->data); |
313bd6fc |
1388 | *queue = g_slist_remove_link(*queue, remove_iter); |
e62a7964 |
1389 | } else { // not remove |
1390 | iter = g_slist_next(iter); |
1391 | } |
1392 | } |
1393 | |
1394 | |
1395 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1396 | LTTV_REQUESTS_CURRENT, |
1397 | LTTV_POINTER, |
1398 | &value)); |
313bd6fc |
1399 | current = (GSList**)(value.v_pointer); |
e62a7964 |
1400 | |
313bd6fc |
1401 | iter = *current; |
e62a7964 |
1402 | while(iter != NULL) { |
1403 | gboolean remove = FALSE; |
1404 | gboolean free_data = FALSE; |
1405 | |
1406 | BackgroundRequest *bg_req = (BackgroundRequest*)iter->data; |
1407 | |
1408 | if(bg_req->module_name == module_name) { |
1409 | remove = TRUE; |
1410 | free_data = TRUE; |
1411 | } |
1412 | |
1413 | /* Go to next */ |
1414 | if(remove) |
1415 | { |
1416 | GSList *remove_iter = iter; |
1417 | |
1418 | iter = g_slist_next(iter); |
1419 | if(free_data) g_free(remove_iter->data); |
313bd6fc |
1420 | *current = g_slist_remove_link(*current, remove_iter); |
e62a7964 |
1421 | } else { // not remove |
1422 | iter = g_slist_next(iter); |
1423 | } |
1424 | } |
1425 | } |
1426 | } |
1427 | |
1428 | |
1429 | /** |
1430 | * Unregister the background computation hooks for a specific module. |
1431 | * |
1432 | * It also removes all the requests than can be currently processed by the |
1433 | * background computation algorithm for all the traces (list_in and list_out). |
1434 | * |
1435 | * @param module_name A GQuark : the name of the module which computes the |
1436 | * information. |
1437 | */ |
1438 | |
1439 | void lttvwindowtraces_unregister_computation_hooks |
1440 | (LttvAttributeName module_name) |
1441 | { |
1442 | LttvAttribute *g_attribute = lttv_global_attributes(); |
1443 | LttvAttribute *attribute; |
91fd6881 |
1444 | LttvAttributeValue value; |
e62a7964 |
1445 | |
1446 | g_assert(attribute = |
1447 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
1448 | LTTV_COMPUTATION))); |
1449 | g_assert(attribute = |
1450 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute), |
1451 | module_name))); |
1452 | |
1453 | |
91fd6881 |
1454 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1455 | LTTV_BEFORE_CHUNK_TRACESET, |
1456 | LTTV_POINTER, |
1457 | &value)); |
1458 | LttvHooks *before_chunk_traceset = (LttvHooks*)*(value.v_pointer); |
1459 | if(before_chunk_traceset != NULL) |
1460 | lttv_hooks_destroy(before_chunk_traceset); |
1461 | |
1462 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1463 | LTTV_BEFORE_CHUNK_TRACE, |
1464 | LTTV_POINTER, |
1465 | &value)); |
1466 | LttvHooks *before_chunk_trace = (LttvHooks*)*(value.v_pointer); |
1467 | if(before_chunk_trace != NULL) |
1468 | lttv_hooks_destroy(before_chunk_trace); |
1469 | |
1470 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1471 | LTTV_BEFORE_CHUNK_TRACEFILE, |
1472 | LTTV_POINTER, |
1473 | &value)); |
1474 | LttvHooks *before_chunk_tracefile = (LttvHooks*)*(value.v_pointer); |
1475 | if(before_chunk_tracefile != NULL) |
1476 | lttv_hooks_destroy(before_chunk_tracefile); |
1477 | |
1478 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1479 | LTTV_AFTER_CHUNK_TRACESET, |
1480 | LTTV_POINTER, |
1481 | &value)); |
1482 | LttvHooks *after_chunk_traceset = (LttvHooks*)*(value.v_pointer); |
1483 | if(after_chunk_traceset != NULL) |
1484 | lttv_hooks_destroy(after_chunk_traceset); |
1485 | |
1486 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1487 | LTTV_AFTER_CHUNK_TRACE, |
1488 | LTTV_POINTER, |
1489 | &value)); |
1490 | LttvHooks *after_chunk_trace = (LttvHooks*)*(value.v_pointer); |
1491 | if(after_chunk_trace != NULL) |
1492 | lttv_hooks_destroy(after_chunk_trace); |
1493 | |
1494 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1495 | LTTV_AFTER_CHUNK_TRACEFILE, |
1496 | LTTV_POINTER, |
1497 | &value)); |
1498 | LttvHooks *after_chunk_tracefile = (LttvHooks*)*(value.v_pointer); |
1499 | if(after_chunk_tracefile != NULL) |
1500 | lttv_hooks_destroy(after_chunk_tracefile); |
1501 | |
1502 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1503 | LTTV_BEFORE_REQUEST, |
1504 | LTTV_POINTER, |
1505 | &value)); |
1506 | LttvHooks *before_request = (LttvHooks*)*(value.v_pointer); |
1507 | if(before_request != NULL) |
1508 | lttv_hooks_destroy(before_request); |
1509 | |
1510 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1511 | LTTV_AFTER_REQUEST, |
1512 | LTTV_POINTER, |
1513 | &value)); |
1514 | LttvHooks *after_request = (LttvHooks*)*(value.v_pointer); |
1515 | if(after_request != NULL) |
1516 | lttv_hooks_destroy(after_request); |
1517 | |
1518 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1519 | LTTV_EVENT_HOOK, |
1520 | LTTV_POINTER, |
1521 | &value)); |
1522 | LttvHooks *event_hook = (LttvHooks*)*(value.v_pointer); |
1523 | if(event_hook != NULL) |
1524 | lttv_hooks_destroy(event_hook); |
1525 | |
1526 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1527 | LTTV_EVENT_HOOK_BY_ID, |
1528 | LTTV_POINTER, |
1529 | &value)); |
1530 | LttvHooksById *event_hook_by_id = (LttvHooksById*)*(value.v_pointer); |
1531 | if(event_hook_by_id != NULL) |
1532 | lttv_hooks_by_id_destroy(event_hook_by_id); |
1533 | |
1534 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1535 | LTTV_HOOK_ADDER, |
1536 | LTTV_POINTER, |
1537 | &value)); |
1538 | LttvHooks *hook_adder = (LttvHooks*)*(value.v_pointer); |
1539 | if(hook_adder != NULL) |
1540 | lttv_hooks_destroy(hook_adder); |
1541 | |
1542 | g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute), |
1543 | LTTV_HOOK_REMOVER, |
1544 | LTTV_POINTER, |
1545 | &value)); |
1546 | LttvHooks *hook_remover = (LttvHooks*)*(value.v_pointer); |
1547 | if(hook_remover != NULL) |
1548 | lttv_hooks_destroy(hook_remover); |
1549 | |
1550 | |
e62a7964 |
1551 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1552 | LTTV_EVENT_HOOK_BY_ID); |
1553 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1554 | LTTV_EVENT_HOOK); |
1555 | |
1556 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1557 | LTTV_AFTER_REQUEST); |
1558 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1559 | LTTV_BEFORE_REQUEST); |
1560 | |
1561 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1562 | LTTV_AFTER_CHUNK_TRACEFILE); |
1563 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1564 | LTTV_AFTER_CHUNK_TRACE); |
1565 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1566 | LTTV_AFTER_CHUNK_TRACESET); |
1567 | |
1568 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1569 | LTTV_BEFORE_CHUNK_TRACEFILE); |
1570 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1571 | LTTV_BEFORE_CHUNK_TRACE); |
1572 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1573 | LTTV_BEFORE_CHUNK_TRACESET); |
313bd6fc |
1574 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1575 | LTTV_HOOK_ADDER); |
1576 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1577 | LTTV_HOOK_REMOVER); |
1578 | |
e62a7964 |
1579 | /* finally, remove module name */ |
1580 | g_assert(attribute = |
1581 | LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute), |
1582 | LTTV_COMPUTATION))); |
1583 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1584 | module_name); |
1585 | |
1586 | } |
1587 | |
b052368a |
1588 | /** |
1589 | * Lock a trace so no other instance can use it. |
1590 | * |
1591 | * @param trace The trace to lock. |
1592 | * @return 0 on success, -1 if cannot get lock. |
1593 | */ |
1594 | gint lttvwindowtraces_lock(LttvTrace *trace) |
1595 | { |
1596 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
1597 | LttvAttributeValue value; |
1598 | LttvAttributeType type; |
1599 | |
1600 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
1601 | LTTV_LOCK, |
1602 | &value); |
1603 | /* Verify the absence of the lock. */ |
1604 | if(type != LTTV_NONE) { |
1605 | g_critical("Cannot take trace lock"); |
1606 | return -1; |
1607 | } |
1608 | |
1609 | value = lttv_iattribute_add(LTTV_IATTRIBUTE(attribute), |
1610 | LTTV_LOCK, |
1611 | LTTV_INT); |
1612 | /* the value is left unset. The only presence of the attribute is necessary. |
1613 | */ |
1614 | |
1615 | return 0; |
1616 | } |
1617 | |
1618 | /** |
1619 | * Unlock a trace. |
1620 | * |
1621 | * @param trace The trace to unlock. |
1622 | * @return 0 on success, -1 if cannot unlock (not locked ?). |
1623 | */ |
1624 | gint lttvwindowtraces_unlock(LttvTrace *trace) |
1625 | { |
1626 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
1627 | LttvAttributeType type; |
1628 | LttvAttributeValue value; |
1629 | |
1630 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
1631 | LTTV_LOCK, |
1632 | &value); |
1633 | /* Verify the presence of the lock. */ |
1634 | if(type == LTTV_NONE) { |
1635 | g_critical("Cannot release trace lock"); |
1636 | return -1; |
1637 | } |
1638 | |
1639 | lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute), |
1640 | LTTV_LOCK); |
1641 | |
1642 | return 0; |
1643 | } |
1644 | |
1645 | /** |
1646 | * Verify if a trace is locked. |
1647 | * |
1648 | * @param trace The trace to verify. |
1649 | * @return TRUE if locked, FALSE is unlocked. |
1650 | */ |
1651 | gint lttvwindowtraces_get_lock_state(LttvTrace *trace) |
1652 | { |
1653 | LttvAttribute *attribute = lttv_trace_attribute(trace); |
1654 | LttvAttributeType type; |
1655 | LttvAttributeValue value; |
1656 | |
1657 | type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute), |
1658 | LTTV_LOCK, |
1659 | &value); |
1660 | /* The only presence of the attribute is necessary. */ |
1661 | if(type == LTTV_NONE) |
1662 | return FALSE; |
1663 | else |
1664 | return TRUE; |
1665 | } |
e62a7964 |
1666 | |