projects / lttv.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
float handling
[lttv.git] / ltt / branches / poly / lttv / modules / gui / lttvwindow / lttvwindow / lttvwindowtraces.c
CommitLineData
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
4e4d11b3 23#ifdef HAVE_CONFIG_H
24#include <config.h>
25#endif
26
0fdb8bb0 27#include <sys/types.h>
28#include <sys/stat.h>
29#include <unistd.h>
2eef04b5 30#include <string.h>
0fdb8bb0 31
a1a2b649 32#include <ltt/time.h>
33#include <ltt/trace.h>
34#include <glib.h>
35#include <lttv/lttv.h>
36#include <lttv/traceset.h>
37#include <lttv/attribute.h>
38#include <lttv/tracecontext.h>
39#include <lttvwindow/lttvwindowtraces.h>
8bc02ec8 40#include <lttvwindow/lttvwindow.h> // for CHUNK_NUM_EVENTS
a1a2b649 41
42
43typedef struct _BackgroundRequest {
44 LttvAttributeName module_name; /* Hook path in global attributes,
45 where all standard hooks under computation/.
46 i.e. modulename */
47 LttvTrace *trace; /* trace concerned */
48} BackgroundRequest;
49
50typedef struct _BackgroundNotify {
51 gpointer owner;
52 LttvTrace *trace; /* trace */
53 LttTime notify_time;
54 LttvTracesetContextPosition *notify_position;
55 LttvHooks *notify; /* Hook to call when the notify is
56 passed, or at the end of trace */
57} BackgroundNotify;
58
59
60
313bd6fc 61/* Prototypes */
62gboolean lttvwindowtraces_process_pending_requests(LttvTrace *trace);
63
a1a2b649 64/* Get a trace by its path name.
65 *
66 * @param path path of the trace on the virtual file system.
67 * @return Pointer to trace if found
68 * NULL is returned if the trace is not present
69 */
70
71LttvTrace *lttvwindowtraces_get_trace_by_name(gchar *path)
72{
a1a2b649 73 guint i;
74
75 for(i=0;i<lttvwindowtraces_get_number();i++) {
76 LttvTrace *trace_v = lttvwindowtraces_get_trace(i);
77 LttTrace *trace;
78 gchar *name;
a1a2b649 79 g_assert(trace_v != NULL);
80
81 trace = lttv_trace(trace_v);
82 g_assert(trace != NULL);
d27948a3 83 name = g_quark_to_string(ltt_trace_name(trace));
a1a2b649 84
85 if(strcmp(name, path) == 0) {
86 /* Found */
87 return trace_v;
88 }
89 }
90
91 return NULL;
92}
93
94/* Get a trace by its number identifier */
95
96LttvTrace *lttvwindowtraces_get_trace(guint num)
97{
98 LttvAttribute *g_attribute = lttv_global_attributes();
99 LttvAttribute *attribute;
100 LttvAttributeType type;
101 LttvAttributeName name;
102 LttvAttributeValue value;
103
104 g_assert(attribute =
105 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute),
106 LTTV_TRACES)));
107
108 type = lttv_iattribute_get(LTTV_IATTRIBUTE(attribute), num, &name, &value);
109
110 if(type == LTTV_POINTER) {
111 return (LttvTrace *)*(value.v_pointer);
112 }
113
114 return NULL;
115}
116
117/* Total number of traces */
118
119guint lttvwindowtraces_get_number()
120{
121 LttvAttribute *g_attribute = lttv_global_attributes();
122 LttvAttribute *attribute;
123 LttvAttributeValue value;
124
125 g_assert(attribute =
126 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute),
127 LTTV_TRACES)));
128
129 return ( lttv_iattribute_get_number(LTTV_IATTRIBUTE(attribute)) );
130}
131
132/* Add a trace to the global attributes */
133
134void lttvwindowtraces_add_trace(LttvTrace *trace)
135{
136 LttvAttribute *g_attribute = lttv_global_attributes();
137 LttvAttribute *attribute;
138 LttvAttributeValue value;
139 guint num;
0fdb8bb0 140 struct stat buf;
141 gchar attribute_path[PATH_MAX];
a1a2b649 142
23bb9b6b 143 if(stat(g_quark_to_string(ltt_trace_name(lttv_trace(trace))), &buf)) {
0fdb8bb0 144 g_warning("lttvwindowtraces_add_trace: Trace %s not found",
23bb9b6b 145 g_quark_to_string(ltt_trace_name(lttv_trace(trace))));
0fdb8bb0 146 return;
147 }
148 g_assert(
23bb9b6b 149 snprintf(attribute_path, PATH_MAX, "%llu:%llu", buf.st_dev, buf.st_ino) >= 0);
0fdb8bb0 150
a1a2b649 151 g_assert(attribute =
152 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute),
153 LTTV_TRACES)));
0fdb8bb0 154
a1a2b649 155 value = lttv_attribute_add(attribute,
0fdb8bb0 156 g_quark_from_string(attribute_path),
a1a2b649 157 LTTV_POINTER);
158
159 *(value.v_pointer) = (gpointer)trace;
8bc02ec8 160
161 /* create new traceset and tracesetcontext */
162 LttvTraceset *ts;
313bd6fc 163 LttvTracesetStats *tss;
8bc02ec8 164
165 attribute = lttv_trace_attribute(trace);
166 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute),
167 LTTV_COMPUTATION_TRACESET,
168 LTTV_POINTER,
169 &value));
170 ts = lttv_traceset_new();
171 *(value.v_pointer) = ts;
172
173 lttv_traceset_add(ts,trace);
174
175 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute),
176 LTTV_COMPUTATION_TRACESET_CONTEXT,
177 LTTV_POINTER,
178 &value));
313bd6fc 179 tss = g_object_new(LTTV_TRACESET_STATS_TYPE, NULL);
180 *(value.v_pointer) = tss;
8bc02ec8 181
313bd6fc 182 lttv_context_init(LTTV_TRACESET_CONTEXT(tss), ts);
8bc02ec8 183
184 value = lttv_attribute_add(attribute,
185 LTTV_REQUESTS_QUEUE,
186 LTTV_POINTER);
187
188 value = lttv_attribute_add(attribute,
189 LTTV_REQUESTS_CURRENT,
190 LTTV_POINTER);
191
192 value = lttv_attribute_add(attribute,
193 LTTV_NOTIFY_QUEUE,
194 LTTV_POINTER);
195
196 value = lttv_attribute_add(attribute,
197 LTTV_NOTIFY_CURRENT,
198 LTTV_POINTER);
199
a1a2b649 200}
201
202/* Remove a trace from the global attributes */
203
204void lttvwindowtraces_remove_trace(LttvTrace *trace)
205{
206 LttvAttribute *g_attribute = lttv_global_attributes();
207 LttvAttribute *attribute;
208 LttvAttributeValue value;
209 guint i;
210
211 g_assert(attribute =
212 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute),
213 LTTV_TRACES)));
214
215 for(i=0;i<lttvwindowtraces_get_number();i++) {
216 LttvTrace *trace_v = lttvwindowtraces_get_trace(i);
217
218 g_assert(trace_v != NULL);
219
b052368a 220 /* Remove and background computation that could be in progress */
221 g_idle_remove_by_data(trace_v);
222
a1a2b649 223 if(trace_v == trace) {
224 /* Found */
8bc02ec8 225 LttvAttribute *l_attribute;
226
23bb9b6b 227 /* destroy traceset and tracesetcontext */
8bc02ec8 228 LttvTraceset *ts;
313bd6fc 229 LttvTracesetStats *tss;
8bc02ec8 230
231 l_attribute = lttv_trace_attribute(trace);
232
233
234 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute),
235 LTTV_REQUESTS_QUEUE);
236
237 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute),
238 LTTV_REQUESTS_CURRENT);
239
240 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute),
241 LTTV_NOTIFY_QUEUE);
242
243 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute),
244 LTTV_NOTIFY_CURRENT);
245
246 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(l_attribute),
247 LTTV_COMPUTATION_TRACESET,
248 LTTV_POINTER,
249 &value));
250 ts = (LttvTraceset*)*(value.v_pointer);
251
252 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(l_attribute),
253 LTTV_COMPUTATION_TRACESET_CONTEXT,
254 LTTV_POINTER,
255 &value));
313bd6fc 256 tss = (LttvTracesetStats*)*(value.v_pointer);
8bc02ec8 257
313bd6fc 258 lttv_context_fini(LTTV_TRACESET_CONTEXT(tss));
259 g_object_unref(tss);
8bc02ec8 260 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute),
261 LTTV_COMPUTATION_TRACESET_CONTEXT);
8bc02ec8 262 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute),
263 LTTV_COMPUTATION_TRACESET);
1ba187d3 264 /* Destroy the traceset and the trace also */
265 lttv_traceset_destroy(ts);
8bc02ec8 266
267 /* finally, remove the global attribute */
a1a2b649 268 lttv_attribute_remove(attribute, i);
8bc02ec8 269
a1a2b649 270 return;
271 }
272 }
273}
274
275
276/**
277 * Function to request data from a specific trace
278 *
279 * The memory allocated for the request will be managed by the API.
280 *
281 * @param trace the trace to compute
282 * @param module_name the name of the module which registered global computation
283 * hooks.
284 */
285
286void lttvwindowtraces_background_request_queue
287 (LttvTrace *trace, gchar *module_name)
288{
289 BackgroundRequest *bg_req;
290 LttvAttribute *attribute = lttv_trace_attribute(trace);
91fd6881 291 LttvAttribute *g_attribute = lttv_global_attributes();
292 LttvAttribute *module_attribute;
a1a2b649 293 LttvAttributeValue value;
91fd6881 294 LttvAttributeType type;
a1a2b649 295 GSList **slist;
296 guint num;
297
298 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute),
299 LTTV_REQUESTS_QUEUE,
300 LTTV_POINTER,
301 &value));
302 slist = (GSList**)(value.v_pointer);
91fd6881 303
304 /* Verify that the calculator is loaded */
305 g_assert(module_attribute =
306 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute),
307 LTTV_COMPUTATION)));
308
309
310 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute),
311 g_quark_from_string(module_name),
312 &value);
313 if(type == LTTV_NONE) {
314 g_critical("Missing background calculator %s", module_name);
315 return;
316 }
317
a1a2b649 318 bg_req = g_new(BackgroundRequest,1);
319 bg_req->module_name = g_quark_from_string(module_name);
320 bg_req->trace = trace;
321
322 *slist = g_slist_append(*slist, bg_req);
313bd6fc 323
324 /* Priority lower than live servicing */
325 g_idle_remove_by_data(trace);
326 g_idle_add_full((G_PRIORITY_HIGH_IDLE + 23),
327 (GSourceFunc)lttvwindowtraces_process_pending_requests,
328 trace,
329 NULL);
b052368a 330 /* FIXME : show message in status bar, need context and message id */
331 g_info("Background computation started for trace %p", trace);
a1a2b649 332}
333
334/**
335 * Remove a background request from a trace.
336 *
337 * This should ONLY be used by the modules which registered the global hooks
338 * (module_name). If this is called by the viewers, it may lead to incomplete
339 * and incoherent background processing information.
340 *
341 * Even if the module which deals with the hooks removes the background
342 * requests, it may cause a problem if the module gets loaded again in the
343 * session : the data will be partially calculated. The calculation function
344 * must deal with this case correctly.
345 *
346 * @param trace the trace to compute
347 * @param module_name the name of the module which registered global computation
348 * hooks.
349 */
350
351void lttvwindowtraces_background_request_remove
352 (LttvTrace *trace, gchar *module_name)
353{
354 LttvAttribute *attribute = lttv_trace_attribute(trace);
355 LttvAttributeValue value;
356 GSList *iter = NULL;
357 GSList **slist;
358
359 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute),
360 LTTV_REQUESTS_QUEUE,
361 LTTV_POINTER,
362 &value));
363 slist = (GSList**)(value.v_pointer);
364
365 for(iter=*slist;iter!=NULL;) {
366 BackgroundRequest *bg_req =
367 (BackgroundRequest *)iter->data;
368
369 if(bg_req->module_name == g_quark_from_string(module_name)) {
370 GSList *rem_iter = iter;
371 iter=g_slist_next(iter);
372 g_free(bg_req);
373 *slist = g_slist_delete_link(*slist, rem_iter);
374 } else {
375 iter=g_slist_next(iter);
376 }
377 }
378}
379
380
381/**
382 * Register a callback to be called when requested data is passed in the next
383 * queued background processing.
384 *
385 * @param owner owner of the background notification
386 * @param trace the trace computed
387 * @param notify_time time when notification hooks must be called
388 * @param notify_position position when notification hooks must be called
389 * @param notify Hook to call when the notify position is passed
390 */
391
392void lttvwindowtraces_background_notify_queue
393 (gpointer owner,
394 LttvTrace *trace,
395 LttTime notify_time,
396 const LttvTracesetContextPosition *notify_position,
397 const LttvHooks *notify)
398{
399 BackgroundNotify *bg_notify;
400 LttvAttribute *attribute = lttv_trace_attribute(trace);
401 LttvAttributeValue value;
402 GSList **slist;
403
404 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute),
405 LTTV_NOTIFY_QUEUE,
406 LTTV_POINTER,
407 &value));
408 slist = (GSList**)(value.v_pointer);
409
410
411 bg_notify = g_new(BackgroundNotify,1);
412
413 bg_notify->owner = owner;
414 bg_notify->trace = trace;
415 bg_notify->notify_time = notify_time;
313bd6fc 416 if(notify_position != NULL) {
b052368a 417 bg_notify->notify_position = lttv_traceset_context_position_new();
313bd6fc 418 lttv_traceset_context_position_copy(bg_notify->notify_position,
419 notify_position);
420 } else {
421 bg_notify->notify_position = NULL;
422 }
423
a1a2b649 424 bg_notify->notify = lttv_hooks_new();
425 lttv_hooks_add_list(bg_notify->notify, notify);
426
427 *slist = g_slist_append(*slist, bg_notify);
428}
429
430/**
431 * Register a callback to be called when requested data is passed in the current
432 * background processing.
433 *
434 * @param owner owner of the background notification
435 * @param trace the trace computed
436 * @param notify_time time when notification hooks must be called
437 * @param notify_position position when notification hooks must be called
438 * @param notify Hook to call when the notify position is passed
439 */
440
441void lttvwindowtraces_background_notify_current
442 (gpointer owner,
443 LttvTrace *trace,
444 LttTime notify_time,
445 const LttvTracesetContextPosition *notify_position,
446 const LttvHooks *notify)
447{
448 BackgroundNotify *bg_notify;
449 LttvAttribute *attribute = lttv_trace_attribute(trace);
450 LttvAttributeValue value;
451 GSList **slist;
452
453 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute),
454 LTTV_NOTIFY_CURRENT,
455 LTTV_POINTER,
456 &value));
457 slist = (GSList**)(value.v_pointer);
458
459 bg_notify = g_new(BackgroundNotify,1);
460
461 bg_notify->owner = owner;
462 bg_notify->trace = trace;
463 bg_notify->notify_time = notify_time;
313bd6fc 464 if(notify_position!= NULL) {
b052368a 465 bg_notify->notify_position = lttv_traceset_context_position_new();
313bd6fc 466 lttv_traceset_context_position_copy(bg_notify->notify_position,
467 notify_position);
468 } else {
469 bg_notify->notify_position = NULL;
470 }
a1a2b649 471 bg_notify->notify = lttv_hooks_new();
472 lttv_hooks_add_list(bg_notify->notify, notify);
473
474 *slist = g_slist_append(*slist, bg_notify);
475}
476
b052368a 477
478static void notify_request_free(BackgroundNotify *notify_req)
479{
480 if(notify_req == NULL) return;
481
482 if(notify_req->notify_position != NULL)
483 lttv_traceset_context_position_destroy(notify_req->notify_position);
484 if(notify_req->notify != NULL)
485 lttv_hooks_destroy(notify_req->notify);
486 g_free(notify_req);
487}
488
a1a2b649 489/**
490 * Removes all the notifications requests from a specific viewer.
491 *
492 * @param owner owner of the background notification
493 */
494
495void lttvwindowtraces_background_notify_remove(gpointer owner)
496{
497 guint i;
498
499 for(i=0;i<lttvwindowtraces_get_number();i++) {
500 LttvAttribute *attribute;
501 LttvAttributeValue value;
502 LttvTrace *trace_v = lttvwindowtraces_get_trace(i);
503 GSList **slist;
504 GSList *iter = NULL;
505
506 g_assert(trace_v != NULL);
507
b052368a 508 attribute = lttv_trace_attribute(trace_v);
a1a2b649 509
510 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute),
511 LTTV_NOTIFY_QUEUE,
512 LTTV_POINTER,
513 &value));
514 slist = (GSList**)(value.v_pointer);
515
516 for(iter=*slist;iter!=NULL;) {
517
518 BackgroundNotify *bg_notify = (BackgroundNotify*)iter->data;
519
520 if(bg_notify->owner == owner) {
521 GSList *rem_iter = iter;
522 iter=g_slist_next(iter);
b052368a 523 notify_request_free(bg_notify);
524 *slist = g_slist_remove_link(*slist, rem_iter);
a1a2b649 525 } else {
526 iter=g_slist_next(iter);
527 }
528 }
529
530 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute),
531 LTTV_NOTIFY_CURRENT,
532 LTTV_POINTER,
533 &value));
534 slist = (GSList**)(value.v_pointer);
535
536 for(iter=*slist;iter!=NULL;) {
537
538 BackgroundNotify *bg_notify = (BackgroundNotify*)iter->data;
539
540 if(bg_notify->owner == owner) {
541 GSList *rem_iter = iter;
542 iter=g_slist_next(iter);
b052368a 543 notify_request_free(bg_notify);
544 *slist = g_slist_remove_link(*slist, rem_iter);
a1a2b649 545 } else {
546 iter=g_slist_next(iter);
547 }
548 }
549 }
550}
551
8bc02ec8 552
553/* Background processing helper functions */
554
555void lttvwindowtraces_add_computation_hooks(LttvAttributeName module_name,
1ce324c6 556 LttvTracesetContext *tsc,
557 LttvHooks *hook_adder)
8bc02ec8 558{
559 LttvAttribute *g_attribute = lttv_global_attributes();
560 LttvAttribute *module_attribute;
561 LttvAttributeType type;
562 LttvAttributeValue value;
563 LttvHooks *before_chunk_traceset=NULL;
564 LttvHooks *before_chunk_trace=NULL;
565 LttvHooks *before_chunk_tracefile=NULL;
566 LttvHooks *event_hook=NULL;
567 LttvHooksById *event_hook_by_id=NULL;
313bd6fc 568 LttvTracesetStats *tss = LTTV_TRACESET_STATS(tsc);
8bc02ec8 569
570
571 g_assert(module_attribute =
572 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute),
573 LTTV_COMPUTATION)));
574
575 g_assert(module_attribute =
576 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(
577 LTTV_IATTRIBUTE(module_attribute),
578 module_name)));
579
580 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute),
581 LTTV_BEFORE_CHUNK_TRACESET,
582 &value);
583 if(type == LTTV_POINTER) {
584 before_chunk_traceset = (LttvHooks*)*(value.v_pointer);
585 }
586
587 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute),
588 LTTV_BEFORE_CHUNK_TRACE,
589 &value);
590 if(type == LTTV_POINTER) {
591 before_chunk_trace = (LttvHooks*)*(value.v_pointer);
592 }
593
594 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute),
595 LTTV_BEFORE_CHUNK_TRACEFILE,
596 &value);
597 if(type == LTTV_POINTER) {
598 before_chunk_tracefile = (LttvHooks*)*(value.v_pointer);
599 }
600
601 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute),
602 LTTV_EVENT_HOOK,
603 &value);
604 if(type == LTTV_POINTER) {
605 event_hook = (LttvHooks*)*(value.v_pointer);
606 }
607
608 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute),
609 LTTV_EVENT_HOOK_BY_ID,
610 &value);
611 if(type == LTTV_POINTER) {
612 event_hook_by_id = (LttvHooksById*)*(value.v_pointer);
613 }
614
313bd6fc 615 /* Call the module's hook adder */
616 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute),
617 LTTV_HOOK_ADDER,
618 &value);
619 if(type == LTTV_POINTER) {
1ce324c6 620 //lttv_hooks_call((LttvHooks*)*(value.v_pointer), (gpointer)tss);
621 if(hook_adder != NULL)
622 lttv_hooks_add_list(hook_adder, (LttvHooks*)*(value.v_pointer));
313bd6fc 623 }
624
625
8bc02ec8 626
627 lttv_process_traceset_begin(tsc,
628 before_chunk_traceset,
629 before_chunk_trace,
630 before_chunk_tracefile,
631 event_hook,
632 event_hook_by_id);
633
634}
635
636void lttvwindowtraces_remove_computation_hooks(LttvAttributeName module_name,
1ce324c6 637 LttvTracesetContext *tsc,
638 LttvHooks *hook_remover)
8bc02ec8 639{
640 LttvAttribute *g_attribute = lttv_global_attributes();
641 LttvAttribute *module_attribute;
642 LttvAttributeType type;
643 LttvAttributeValue value;
644 LttvHooks *after_chunk_traceset=NULL;
645 LttvHooks *after_chunk_trace=NULL;
646 LttvHooks *after_chunk_tracefile=NULL;
647 LttvHooks *event_hook=NULL;
648 LttvHooksById *event_hook_by_id=NULL;
313bd6fc 649 LttvTracesetStats *tss = LTTV_TRACESET_STATS(tsc);
8bc02ec8 650
651 g_assert(module_attribute =
652 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute),
653 LTTV_COMPUTATION)));
654
655 g_assert(module_attribute =
656 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(
657 LTTV_IATTRIBUTE(module_attribute),
658 module_name)));
659
660 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute),
661 LTTV_AFTER_CHUNK_TRACESET,
662 &value);
663 if(type == LTTV_POINTER) {
664 after_chunk_traceset = (LttvHooks*)*(value.v_pointer);
665 }
666
667 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute),
668 LTTV_AFTER_CHUNK_TRACE,
669 &value);
670 if(type == LTTV_POINTER) {
671 after_chunk_trace = (LttvHooks*)*(value.v_pointer);
672 }
673
674 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute),
675 LTTV_AFTER_CHUNK_TRACEFILE,
676 &value);
677 if(type == LTTV_POINTER) {
678 after_chunk_tracefile = (LttvHooks*)*(value.v_pointer);
679 }
680
681 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute),
682 LTTV_EVENT_HOOK,
683 &value);
684 if(type == LTTV_POINTER) {
685 event_hook = (LttvHooks*)*(value.v_pointer);
686 }
687
688 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute),
689 LTTV_EVENT_HOOK_BY_ID,
690 &value);
691 if(type == LTTV_POINTER) {
692 event_hook_by_id = (LttvHooksById*)*(value.v_pointer);
693 }
313bd6fc 694
8bc02ec8 695 lttv_process_traceset_end(tsc,
696 after_chunk_traceset,
697 after_chunk_trace,
698 after_chunk_tracefile,
699 event_hook,
700 event_hook_by_id);
313bd6fc 701
702 /* Call the module's hook remover */
703 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute),
704 LTTV_HOOK_REMOVER,
705 &value);
706 if(type == LTTV_POINTER) {
1ce324c6 707 //lttv_hooks_call((LttvHooks*)*(value.v_pointer), (gpointer)tss);
708 if(hook_remover != NULL)
709 lttv_hooks_add_list(hook_remover, (LttvHooks*)*(value.v_pointer));
313bd6fc 710 }
8bc02ec8 711}
712
713
714void lttvwindowtraces_set_in_progress(LttvAttributeName module_name,
715 LttvTrace *trace)
716{
717 LttvAttribute *attribute = lttv_trace_attribute(trace);
718 LttvAttributeValue value;
719
720 g_assert(attribute =
721 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute),
722 module_name)));
723
724 value = lttv_iattribute_add(LTTV_IATTRIBUTE(attribute),
725 LTTV_IN_PROGRESS,
726 LTTV_INT);
727 /* the value is left unset. The only presence of the attribute is necessary.
728 */
729}
730
731void lttvwindowtraces_unset_in_progress(LttvAttributeName module_name,
732 LttvTrace *trace)
733{
734 LttvAttribute *attribute = lttv_trace_attribute(trace);
735
736 g_assert(attribute =
737 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute),
738 module_name)));
739
313bd6fc 740 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute),
8bc02ec8 741 LTTV_IN_PROGRESS);
742}
743
744gboolean lttvwindowtraces_get_in_progress(LttvAttributeName module_name,
745 LttvTrace *trace)
746{
747 LttvAttribute *attribute = lttv_trace_attribute(trace);
748 LttvAttributeType type;
749 LttvAttributeValue value;
750
751 g_assert(attribute =
752 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute),
753 module_name)));
754
755 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute),
756 LTTV_IN_PROGRESS,
757 &value);
758 /* The only presence of the attribute is necessary. */
759 if(type == LTTV_NONE)
760 return FALSE;
761 else
762 return TRUE;
763}
764
765void lttvwindowtraces_set_ready(LttvAttributeName module_name,
766 LttvTrace *trace)
767{
768 LttvAttribute *attribute = lttv_trace_attribute(trace);
769 LttvAttributeValue value;
770
771 g_assert(attribute =
772 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute),
773 module_name)));
774
775 value = lttv_iattribute_add(LTTV_IATTRIBUTE(attribute),
776 LTTV_READY,
777 LTTV_INT);
778 /* the value is left unset. The only presence of the attribute is necessary.
779 */
780}
781
782void lttvwindowtraces_unset_ready(LttvAttributeName module_name,
783 LttvTrace *trace)
784{
785 LttvAttribute *attribute = lttv_trace_attribute(trace);
786
787 g_assert(attribute =
788 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute),
789 module_name)));
790
313bd6fc 791 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute),
8bc02ec8 792 LTTV_READY);
793}
794
795gboolean lttvwindowtraces_get_ready(LttvAttributeName module_name,
796 LttvTrace *trace)
797{
798 LttvAttribute *attribute = lttv_trace_attribute(trace);
799 LttvAttributeType type;
800 LttvAttributeValue value;
801
802 g_assert(attribute =
803 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute),
804 module_name)));
805
806 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute),
807 LTTV_READY,
808 &value);
809 /* The only presence of the attribute is necessary. */
810 if(type == LTTV_NONE)
811 return FALSE;
812 else
813 return TRUE;
814}
815
816
8bc02ec8 817/* lttvwindowtraces_process_pending_requests
818 *
819 * This internal function gets called by g_idle, taking care of the pending
820 * requests.
821 *
822 */
823
824
825gboolean lttvwindowtraces_process_pending_requests(LttvTrace *trace)
826{
827 LttvTracesetContext *tsc;
313bd6fc 828 LttvTracesetStats *tss;
8bc02ec8 829 LttvTraceset *ts;
830 LttvAttribute *attribute;
91fd6881 831 LttvAttribute *g_attribute = lttv_global_attributes();
313bd6fc 832 GSList **list_out, **list_in, **notify_in, **notify_out;
8bc02ec8 833 LttvAttributeValue value;
834 LttvAttributeType type;
b052368a 835 gboolean ret_val;
8bc02ec8 836
313bd6fc 837 if(trace == NULL)
8bc02ec8 838 return FALSE;
839
840 attribute = lttv_trace_attribute(trace);
841
842 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute),
843 LTTV_REQUESTS_QUEUE,
844 &value);
845 g_assert(type == LTTV_POINTER);
313bd6fc 846 list_out = (GSList**)(value.v_pointer);
8bc02ec8 847
848 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute),
849 LTTV_REQUESTS_CURRENT,
850 &value);
851 g_assert(type == LTTV_POINTER);
313bd6fc 852 list_in = (GSList**)(value.v_pointer);
8bc02ec8 853
854 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute),
855 LTTV_NOTIFY_QUEUE,
856 &value);
857 g_assert(type == LTTV_POINTER);
313bd6fc 858 notify_out = (GSList**)(value.v_pointer);
8bc02ec8 859
860 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute),
861 LTTV_NOTIFY_CURRENT,
862 &value);
863 g_assert(type == LTTV_POINTER);
313bd6fc 864 notify_in = (GSList**)(value.v_pointer);
8bc02ec8 865
866 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute),
867 LTTV_COMPUTATION_TRACESET,
868 &value);
869 g_assert(type == LTTV_POINTER);
870 ts = (LttvTraceset*)*(value.v_pointer);
871
872 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute),
873 LTTV_COMPUTATION_TRACESET_CONTEXT,
874 &value);
875 g_assert(type == LTTV_POINTER);
876 tsc = (LttvTracesetContext*)*(value.v_pointer);
313bd6fc 877 tss = (LttvTracesetStats*)*(value.v_pointer);
8bc02ec8 878 g_assert(LTTV_IS_TRACESET_CONTEXT(tsc));
313bd6fc 879 g_assert(LTTV_IS_TRACESET_STATS(tss));
8bc02ec8 880
881 /* There is no events requests pending : we should never have been called! */
313bd6fc 882 g_assert(g_slist_length(*list_out) != 0 || g_slist_length(*list_in) != 0);
b052368a 883 /* 0.1 Lock traces */
884 {
885 guint iter_trace=0;
886
887 for(iter_trace=0;
888 iter_trace<lttv_traceset_number(tsc->ts);
889 iter_trace++) {
890 LttvTrace *trace_v = lttv_traceset_get(tsc->ts,iter_trace);
891
892 if(lttvwindowtraces_lock(trace_v) != 0)
893 return TRUE; /* Cannot get trace lock, try later */
8bc02ec8 894
b052368a 895 }
896 }
897 /* 0.2 Sync tracefiles */
898 lttv_process_traceset_synchronize_tracefiles(tsc);
8bc02ec8 899 /* 1. Before processing */
900 {
901 /* if list_in is empty */
313bd6fc 902 if(g_slist_length(*list_in) == 0) {
8bc02ec8 903
904 {
905 /* - Add all requests in list_out to list_in, empty list_out */
313bd6fc 906 GSList *iter = *list_out;
8bc02ec8 907
908 while(iter != NULL) {
909 gboolean remove = FALSE;
910 gboolean free_data = FALSE;
911
912 BackgroundRequest *bg_req = (BackgroundRequest*)iter->data;
913
914 remove = TRUE;
915 free_data = FALSE;
313bd6fc 916 *list_in = g_slist_append(*list_in, bg_req);
8bc02ec8 917
918 /* Go to next */
919 if(remove)
920 {
921 GSList *remove_iter = iter;
922
923 iter = g_slist_next(iter);
924 if(free_data) g_free(remove_iter->data);
313bd6fc 925 *list_out = g_slist_remove_link(*list_out, remove_iter);
8bc02ec8 926 } else { // not remove
927 iter = g_slist_next(iter);
928 }
929 }
930 }
931
932 {
313bd6fc 933 GSList *iter = *list_in;
8bc02ec8 934 /* - for each request in list_in */
935 while(iter != NULL) {
936
937 BackgroundRequest *bg_req = (BackgroundRequest*)iter->data;
91fd6881 938 /* - set hooks'in_progress flag to TRUE */
8bc02ec8 939 lttvwindowtraces_set_in_progress(bg_req->module_name,
940 bg_req->trace);
91fd6881 941
942 /* - call before request hook */
943 /* Get before request hook */
944 LttvAttribute *module_attribute;
945
946 g_assert(module_attribute =
947 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(
948 LTTV_IATTRIBUTE(g_attribute),
949 LTTV_COMPUTATION)));
950
951 g_assert(module_attribute =
952 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(
953 LTTV_IATTRIBUTE(module_attribute),
954 bg_req->module_name)));
955
956 type = lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute),
957 LTTV_BEFORE_REQUEST,
958 &value);
959 g_assert(type == LTTV_POINTER);
960 LttvHooks *before_request = (LttvHooks*)*(value.v_pointer);
91fd6881 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 {
d27948a3 1217 lttv_process_traceset_get_sync_data(tsc);
b052368a 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 */
1240void 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 */
1350void 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
1439void 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 */
1594gint 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 */
1624gint 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 */
1651gint 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
LTTng 2.x Viewer (LTTV)
This page took 0.100952 seconds and 4 git commands to generate.