1 /* This file is part of the Linux Trace Toolkit Graphic User Interface
2 * Copyright (C) 2003-2004 Mathieu Desnoyers
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;
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.
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,
19 /* This file is the API used to launch any background computation on a trace */
21 /* Here is the implementation of the API */
23 #include <sys/types.h>
29 #include <ltt/trace.h>
31 #include <lttv/lttv.h>
32 #include <lttv/traceset.h>
33 #include <lttv/attribute.h>
34 #include <lttv/tracecontext.h>
35 #include <lttvwindow/lttvwindowtraces.h>
36 #include <lttvwindow/lttvwindow.h> // for CHUNK_NUM_EVENTS
39 typedef struct _BackgroundRequest
{
40 LttvAttributeName module_name
; /* Hook path in global attributes,
41 where all standard hooks under computation/.
43 LttvTrace
*trace
; /* trace concerned */
46 typedef struct _BackgroundNotify
{
48 LttvTrace
*trace
; /* trace */
50 LttvTracesetContextPosition
*notify_position
;
51 LttvHooks
*notify
; /* Hook to call when the notify is
52 passed, or at the end of trace */
58 gboolean
lttvwindowtraces_process_pending_requests(LttvTrace
*trace
);
60 /* Get a trace by its path name.
62 * @param path path of the trace on the virtual file system.
63 * @return Pointer to trace if found
64 * NULL is returned if the trace is not present
67 LttvTrace
*lttvwindowtraces_get_trace_by_name(gchar
*path
)
71 for(i
=0;i
<lttvwindowtraces_get_number();i
++) {
72 LttvTrace
*trace_v
= lttvwindowtraces_get_trace(i
);
75 g_assert(trace_v
!= NULL
);
77 trace
= lttv_trace(trace_v
);
78 g_assert(trace
!= NULL
);
79 name
= ltt_trace_name(trace
);
81 if(strcmp(name
, path
) == 0) {
90 /* Get a trace by its number identifier */
92 LttvTrace
*lttvwindowtraces_get_trace(guint num
)
94 LttvAttribute
*g_attribute
= lttv_global_attributes();
95 LttvAttribute
*attribute
;
96 LttvAttributeType type
;
97 LttvAttributeName name
;
98 LttvAttributeValue value
;
101 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute
),
104 type
= lttv_iattribute_get(LTTV_IATTRIBUTE(attribute
), num
, &name
, &value
);
106 if(type
== LTTV_POINTER
) {
107 return (LttvTrace
*)*(value
.v_pointer
);
113 /* Total number of traces */
115 guint
lttvwindowtraces_get_number()
117 LttvAttribute
*g_attribute
= lttv_global_attributes();
118 LttvAttribute
*attribute
;
119 LttvAttributeValue value
;
122 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute
),
125 return ( lttv_iattribute_get_number(LTTV_IATTRIBUTE(attribute
)) );
128 /* Add a trace to the global attributes */
130 void lttvwindowtraces_add_trace(LttvTrace
*trace
)
132 LttvAttribute
*g_attribute
= lttv_global_attributes();
133 LttvAttribute
*attribute
;
134 LttvAttributeValue value
;
137 gchar attribute_path
[PATH_MAX
];
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
)));
145 snprintf(attribute_path
, PATH_MAX
, "%lu:%lu", buf
.st_dev
, buf
.st_ino
) >= 0);
148 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute
),
151 value
= lttv_attribute_add(attribute
,
152 g_quark_from_string(attribute_path
),
155 *(value
.v_pointer
) = (gpointer
)trace
;
157 /* create new traceset and tracesetcontext */
159 LttvTracesetStats
*tss
;
161 attribute
= lttv_trace_attribute(trace
);
162 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
163 LTTV_COMPUTATION_TRACESET
,
166 ts
= lttv_traceset_new();
167 *(value
.v_pointer
) = ts
;
169 lttv_traceset_add(ts
,trace
);
171 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
172 LTTV_COMPUTATION_TRACESET_CONTEXT
,
175 tss
= g_object_new(LTTV_TRACESET_STATS_TYPE
, NULL
);
176 *(value
.v_pointer
) = tss
;
178 lttv_context_init(LTTV_TRACESET_CONTEXT(tss
), ts
);
180 value
= lttv_attribute_add(attribute
,
184 value
= lttv_attribute_add(attribute
,
185 LTTV_REQUESTS_CURRENT
,
188 value
= lttv_attribute_add(attribute
,
192 value
= lttv_attribute_add(attribute
,
198 /* Remove a trace from the global attributes */
200 void lttvwindowtraces_remove_trace(LttvTrace
*trace
)
202 LttvAttribute
*g_attribute
= lttv_global_attributes();
203 LttvAttribute
*attribute
;
204 LttvAttributeValue value
;
208 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute
),
211 for(i
=0;i
<lttvwindowtraces_get_number();i
++) {
212 LttvTrace
*trace_v
= lttvwindowtraces_get_trace(i
);
214 g_assert(trace_v
!= NULL
);
216 /* Remove and background computation that could be in progress */
217 g_idle_remove_by_data(trace_v
);
219 if(trace_v
== trace
) {
221 LttvAttribute
*l_attribute
;
223 /* create new traceset and tracesetcontext */
225 LttvTracesetStats
*tss
;
227 l_attribute
= lttv_trace_attribute(trace
);
230 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute
),
231 LTTV_REQUESTS_QUEUE
);
233 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute
),
234 LTTV_REQUESTS_CURRENT
);
236 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute
),
239 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute
),
240 LTTV_NOTIFY_CURRENT
);
242 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(l_attribute
),
243 LTTV_COMPUTATION_TRACESET
,
246 ts
= (LttvTraceset
*)*(value
.v_pointer
);
248 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(l_attribute
),
249 LTTV_COMPUTATION_TRACESET_CONTEXT
,
252 tss
= (LttvTracesetStats
*)*(value
.v_pointer
);
254 lttv_context_fini(LTTV_TRACESET_CONTEXT(tss
));
256 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute
),
257 LTTV_COMPUTATION_TRACESET_CONTEXT
);
258 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(l_attribute
),
259 LTTV_COMPUTATION_TRACESET
);
260 /* Destroy the traceset and the trace also */
261 lttv_traceset_destroy(ts
);
263 /* finally, remove the global attribute */
264 lttv_attribute_remove(attribute
, i
);
273 * Function to request data from a specific trace
275 * The memory allocated for the request will be managed by the API.
277 * @param trace the trace to compute
278 * @param module_name the name of the module which registered global computation
282 void lttvwindowtraces_background_request_queue
283 (LttvTrace
*trace
, gchar
*module_name
)
285 BackgroundRequest
*bg_req
;
286 LttvAttribute
*attribute
= lttv_trace_attribute(trace
);
287 LttvAttribute
*g_attribute
= lttv_global_attributes();
288 LttvAttribute
*module_attribute
;
289 LttvAttributeValue value
;
290 LttvAttributeType type
;
294 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
298 slist
= (GSList
**)(value
.v_pointer
);
300 /* Verify that the calculator is loaded */
301 g_assert(module_attribute
=
302 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute
),
306 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute
),
307 g_quark_from_string(module_name
),
309 if(type
== LTTV_NONE
) {
310 g_critical("Missing background calculator %s", module_name
);
314 bg_req
= g_new(BackgroundRequest
,1);
315 bg_req
->module_name
= g_quark_from_string(module_name
);
316 bg_req
->trace
= trace
;
318 *slist
= g_slist_append(*slist
, bg_req
);
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
,
326 /* FIXME : show message in status bar, need context and message id */
327 g_info("Background computation started for trace %p", trace
);
331 * Remove a background request from a trace.
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.
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.
342 * @param trace the trace to compute
343 * @param module_name the name of the module which registered global computation
347 void lttvwindowtraces_background_request_remove
348 (LttvTrace
*trace
, gchar
*module_name
)
350 LttvAttribute
*attribute
= lttv_trace_attribute(trace
);
351 LttvAttributeValue value
;
355 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
359 slist
= (GSList
**)(value
.v_pointer
);
361 for(iter
=*slist
;iter
!=NULL
;) {
362 BackgroundRequest
*bg_req
=
363 (BackgroundRequest
*)iter
->data
;
365 if(bg_req
->module_name
== g_quark_from_string(module_name
)) {
366 GSList
*rem_iter
= iter
;
367 iter
=g_slist_next(iter
);
369 *slist
= g_slist_delete_link(*slist
, rem_iter
);
371 iter
=g_slist_next(iter
);
378 * Register a callback to be called when requested data is passed in the next
379 * queued background processing.
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
388 void lttvwindowtraces_background_notify_queue
392 const LttvTracesetContextPosition
*notify_position
,
393 const LttvHooks
*notify
)
395 BackgroundNotify
*bg_notify
;
396 LttvAttribute
*attribute
= lttv_trace_attribute(trace
);
397 LttvAttributeValue value
;
400 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
404 slist
= (GSList
**)(value
.v_pointer
);
407 bg_notify
= g_new(BackgroundNotify
,1);
409 bg_notify
->owner
= owner
;
410 bg_notify
->trace
= trace
;
411 bg_notify
->notify_time
= notify_time
;
412 if(notify_position
!= NULL
) {
413 bg_notify
->notify_position
= lttv_traceset_context_position_new();
414 lttv_traceset_context_position_copy(bg_notify
->notify_position
,
417 bg_notify
->notify_position
= NULL
;
420 bg_notify
->notify
= lttv_hooks_new();
421 lttv_hooks_add_list(bg_notify
->notify
, notify
);
423 *slist
= g_slist_append(*slist
, bg_notify
);
427 * Register a callback to be called when requested data is passed in the current
428 * background processing.
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
437 void lttvwindowtraces_background_notify_current
441 const LttvTracesetContextPosition
*notify_position
,
442 const LttvHooks
*notify
)
444 BackgroundNotify
*bg_notify
;
445 LttvAttribute
*attribute
= lttv_trace_attribute(trace
);
446 LttvAttributeValue value
;
449 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
453 slist
= (GSList
**)(value
.v_pointer
);
455 bg_notify
= g_new(BackgroundNotify
,1);
457 bg_notify
->owner
= owner
;
458 bg_notify
->trace
= trace
;
459 bg_notify
->notify_time
= notify_time
;
460 if(notify_position
!= NULL
) {
461 bg_notify
->notify_position
= lttv_traceset_context_position_new();
462 lttv_traceset_context_position_copy(bg_notify
->notify_position
,
465 bg_notify
->notify_position
= NULL
;
467 bg_notify
->notify
= lttv_hooks_new();
468 lttv_hooks_add_list(bg_notify
->notify
, notify
);
470 *slist
= g_slist_append(*slist
, bg_notify
);
474 static void notify_request_free(BackgroundNotify
*notify_req
)
476 if(notify_req
== NULL
) return;
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
);
486 * Removes all the notifications requests from a specific viewer.
488 * @param owner owner of the background notification
491 void lttvwindowtraces_background_notify_remove(gpointer owner
)
495 for(i
=0;i
<lttvwindowtraces_get_number();i
++) {
496 LttvAttribute
*attribute
;
497 LttvAttributeValue value
;
498 LttvTrace
*trace_v
= lttvwindowtraces_get_trace(i
);
502 g_assert(trace_v
!= NULL
);
504 attribute
= lttv_trace_attribute(trace_v
);
506 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
510 slist
= (GSList
**)(value
.v_pointer
);
512 for(iter
=*slist
;iter
!=NULL
;) {
514 BackgroundNotify
*bg_notify
= (BackgroundNotify
*)iter
->data
;
516 if(bg_notify
->owner
== owner
) {
517 GSList
*rem_iter
= iter
;
518 iter
=g_slist_next(iter
);
519 notify_request_free(bg_notify
);
520 *slist
= g_slist_remove_link(*slist
, rem_iter
);
522 iter
=g_slist_next(iter
);
526 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
530 slist
= (GSList
**)(value
.v_pointer
);
532 for(iter
=*slist
;iter
!=NULL
;) {
534 BackgroundNotify
*bg_notify
= (BackgroundNotify
*)iter
->data
;
536 if(bg_notify
->owner
== owner
) {
537 GSList
*rem_iter
= iter
;
538 iter
=g_slist_next(iter
);
539 notify_request_free(bg_notify
);
540 *slist
= g_slist_remove_link(*slist
, rem_iter
);
542 iter
=g_slist_next(iter
);
549 /* Background processing helper functions */
551 void lttvwindowtraces_add_computation_hooks(LttvAttributeName module_name
,
552 LttvTracesetContext
*tsc
,
553 LttvHooks
*hook_adder
)
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
;
564 LttvTracesetStats
*tss
= LTTV_TRACESET_STATS(tsc
);
567 g_assert(module_attribute
=
568 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute
),
571 g_assert(module_attribute
=
572 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(
573 LTTV_IATTRIBUTE(module_attribute
),
576 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute
),
577 LTTV_BEFORE_CHUNK_TRACESET
,
579 if(type
== LTTV_POINTER
) {
580 before_chunk_traceset
= (LttvHooks
*)*(value
.v_pointer
);
583 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute
),
584 LTTV_BEFORE_CHUNK_TRACE
,
586 if(type
== LTTV_POINTER
) {
587 before_chunk_trace
= (LttvHooks
*)*(value
.v_pointer
);
590 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute
),
591 LTTV_BEFORE_CHUNK_TRACEFILE
,
593 if(type
== LTTV_POINTER
) {
594 before_chunk_tracefile
= (LttvHooks
*)*(value
.v_pointer
);
597 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute
),
600 if(type
== LTTV_POINTER
) {
601 event_hook
= (LttvHooks
*)*(value
.v_pointer
);
604 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute
),
605 LTTV_EVENT_HOOK_BY_ID
,
607 if(type
== LTTV_POINTER
) {
608 event_hook_by_id
= (LttvHooksById
*)*(value
.v_pointer
);
611 /* Call the module's hook adder */
612 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute
),
615 if(type
== LTTV_POINTER
) {
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
));
623 lttv_process_traceset_begin(tsc
,
624 before_chunk_traceset
,
626 before_chunk_tracefile
,
632 void lttvwindowtraces_remove_computation_hooks(LttvAttributeName module_name
,
633 LttvTracesetContext
*tsc
,
634 LttvHooks
*hook_remover
)
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
;
645 LttvTracesetStats
*tss
= LTTV_TRACESET_STATS(tsc
);
647 g_assert(module_attribute
=
648 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute
),
651 g_assert(module_attribute
=
652 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(
653 LTTV_IATTRIBUTE(module_attribute
),
656 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute
),
657 LTTV_AFTER_CHUNK_TRACESET
,
659 if(type
== LTTV_POINTER
) {
660 after_chunk_traceset
= (LttvHooks
*)*(value
.v_pointer
);
663 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute
),
664 LTTV_AFTER_CHUNK_TRACE
,
666 if(type
== LTTV_POINTER
) {
667 after_chunk_trace
= (LttvHooks
*)*(value
.v_pointer
);
670 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute
),
671 LTTV_AFTER_CHUNK_TRACEFILE
,
673 if(type
== LTTV_POINTER
) {
674 after_chunk_tracefile
= (LttvHooks
*)*(value
.v_pointer
);
677 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute
),
680 if(type
== LTTV_POINTER
) {
681 event_hook
= (LttvHooks
*)*(value
.v_pointer
);
684 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute
),
685 LTTV_EVENT_HOOK_BY_ID
,
687 if(type
== LTTV_POINTER
) {
688 event_hook_by_id
= (LttvHooksById
*)*(value
.v_pointer
);
691 lttv_process_traceset_end(tsc
,
692 after_chunk_traceset
,
694 after_chunk_tracefile
,
698 /* Call the module's hook remover */
699 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute
),
702 if(type
== LTTV_POINTER
) {
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
));
710 void lttvwindowtraces_set_in_progress(LttvAttributeName module_name
,
713 LttvAttribute
*attribute
= lttv_trace_attribute(trace
);
714 LttvAttributeValue value
;
717 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute
),
720 value
= lttv_iattribute_add(LTTV_IATTRIBUTE(attribute
),
723 /* the value is left unset. The only presence of the attribute is necessary.
727 void lttvwindowtraces_unset_in_progress(LttvAttributeName module_name
,
730 LttvAttribute
*attribute
= lttv_trace_attribute(trace
);
733 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute
),
736 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute
),
740 gboolean
lttvwindowtraces_get_in_progress(LttvAttributeName module_name
,
743 LttvAttribute
*attribute
= lttv_trace_attribute(trace
);
744 LttvAttributeType type
;
745 LttvAttributeValue value
;
748 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute
),
751 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute
),
754 /* The only presence of the attribute is necessary. */
755 if(type
== LTTV_NONE
)
761 void lttvwindowtraces_set_ready(LttvAttributeName module_name
,
764 LttvAttribute
*attribute
= lttv_trace_attribute(trace
);
765 LttvAttributeValue value
;
768 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute
),
771 value
= lttv_iattribute_add(LTTV_IATTRIBUTE(attribute
),
774 /* the value is left unset. The only presence of the attribute is necessary.
778 void lttvwindowtraces_unset_ready(LttvAttributeName module_name
,
781 LttvAttribute
*attribute
= lttv_trace_attribute(trace
);
784 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute
),
787 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute
),
791 gboolean
lttvwindowtraces_get_ready(LttvAttributeName module_name
,
794 LttvAttribute
*attribute
= lttv_trace_attribute(trace
);
795 LttvAttributeType type
;
796 LttvAttributeValue value
;
799 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute
),
802 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute
),
805 /* The only presence of the attribute is necessary. */
806 if(type
== LTTV_NONE
)
813 /* lttvwindowtraces_process_pending_requests
815 * This internal function gets called by g_idle, taking care of the pending
821 gboolean
lttvwindowtraces_process_pending_requests(LttvTrace
*trace
)
823 LttvTracesetContext
*tsc
;
824 LttvTracesetStats
*tss
;
826 LttvAttribute
*attribute
;
827 LttvAttribute
*g_attribute
= lttv_global_attributes();
828 GSList
**list_out
, **list_in
, **notify_in
, **notify_out
;
829 LttvAttributeValue value
;
830 LttvAttributeType type
;
836 attribute
= lttv_trace_attribute(trace
);
838 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute
),
841 g_assert(type
== LTTV_POINTER
);
842 list_out
= (GSList
**)(value
.v_pointer
);
844 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute
),
845 LTTV_REQUESTS_CURRENT
,
847 g_assert(type
== LTTV_POINTER
);
848 list_in
= (GSList
**)(value
.v_pointer
);
850 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute
),
853 g_assert(type
== LTTV_POINTER
);
854 notify_out
= (GSList
**)(value
.v_pointer
);
856 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute
),
859 g_assert(type
== LTTV_POINTER
);
860 notify_in
= (GSList
**)(value
.v_pointer
);
862 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute
),
863 LTTV_COMPUTATION_TRACESET
,
865 g_assert(type
== LTTV_POINTER
);
866 ts
= (LttvTraceset
*)*(value
.v_pointer
);
868 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute
),
869 LTTV_COMPUTATION_TRACESET_CONTEXT
,
871 g_assert(type
== LTTV_POINTER
);
872 tsc
= (LttvTracesetContext
*)*(value
.v_pointer
);
873 tss
= (LttvTracesetStats
*)*(value
.v_pointer
);
874 g_assert(LTTV_IS_TRACESET_CONTEXT(tsc
));
875 g_assert(LTTV_IS_TRACESET_STATS(tss
));
877 /* There is no events requests pending : we should never have been called! */
878 g_assert(g_slist_length(*list_out
) != 0 || g_slist_length(*list_in
) != 0);
880 /* 0.1 Lock traces */
885 iter_trace
<lttv_traceset_number(tsc
->ts
);
887 LttvTrace
*trace_v
= lttv_traceset_get(tsc
->ts
,iter_trace
);
889 if(lttvwindowtraces_lock(trace_v
) != 0)
890 return TRUE
; /* Cannot get trace lock, try later */
894 /* 0.2 Sync tracefiles */
895 lttv_process_traceset_synchronize_tracefiles(tsc
);
897 /* 1. Before processing */
899 /* if list_in is empty */
900 if(g_slist_length(*list_in
) == 0) {
903 /* - Add all requests in list_out to list_in, empty list_out */
904 GSList
*iter
= *list_out
;
906 while(iter
!= NULL
) {
907 gboolean remove
= FALSE
;
908 gboolean free_data
= FALSE
;
910 BackgroundRequest
*bg_req
= (BackgroundRequest
*)iter
->data
;
914 *list_in
= g_slist_append(*list_in
, bg_req
);
919 GSList
*remove_iter
= iter
;
921 iter
= g_slist_next(iter
);
922 if(free_data
) g_free(remove_iter
->data
);
923 *list_out
= g_slist_remove_link(*list_out
, remove_iter
);
924 } else { // not remove
925 iter
= g_slist_next(iter
);
931 GSList
*iter
= *list_in
;
932 /* - for each request in list_in */
933 while(iter
!= NULL
) {
935 BackgroundRequest
*bg_req
= (BackgroundRequest
*)iter
->data
;
936 /* - set hooks'in_progress flag to TRUE */
937 lttvwindowtraces_set_in_progress(bg_req
->module_name
,
940 /* - call before request hook */
941 /* Get before request hook */
942 LttvAttribute
*module_attribute
;
944 g_assert(module_attribute
=
945 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(
946 LTTV_IATTRIBUTE(g_attribute
),
949 g_assert(module_attribute
=
950 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(
951 LTTV_IATTRIBUTE(module_attribute
),
952 bg_req
->module_name
)));
954 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute
),
957 g_assert(type
== LTTV_POINTER
);
958 LttvHooks
*before_request
= (LttvHooks
*)*(value
.v_pointer
);
960 if(before_request
!= NULL
) lttv_hooks_call(before_request
, tsc
);
962 iter
= g_slist_next(iter
);
966 /* - seek trace to start */
968 LttTime start
= { 0, 0};
969 lttv_process_traceset_seek_time(tsc
, start
);
972 /* - Move all notifications from notify_out to notify_in. */
974 GSList
*iter
= *notify_out
;
975 g_assert(g_slist_length(*notify_in
) == 0);
977 while(iter
!= NULL
) {
978 gboolean remove
= FALSE
;
979 gboolean free_data
= FALSE
;
981 BackgroundNotify
*notify_req
= (BackgroundNotify
*)iter
->data
;
985 *notify_in
= g_slist_append(*notify_in
, notify_req
);
990 GSList
*remove_iter
= iter
;
992 iter
= g_slist_next(iter
);
994 notify_request_free((BackgroundNotify
*)remove_iter
->data
);
995 *notify_out
= g_slist_remove_link(*notify_out
, remove_iter
);
996 } else { // not remove
997 iter
= g_slist_next(iter
);
1004 GSList
*iter
= *list_in
;
1005 LttvHooks
*hook_adder
= lttv_hooks_new();
1006 /* - for each request in list_in */
1007 while(iter
!= NULL
) {
1009 BackgroundRequest
*bg_req
= (BackgroundRequest
*)iter
->data
;
1010 /*- Call before chunk hooks for list_in*/
1011 /*- add hooks to context*/
1012 lttvwindowtraces_add_computation_hooks(bg_req
->module_name
,
1015 iter
= g_slist_next(iter
);
1017 lttv_hooks_call(hook_adder
,tsc
);
1018 lttv_hooks_destroy(hook_adder
);
1022 /* 2. call process traceset middle for a chunk */
1024 /*(assert list_in is not empty! : should not even be called in that case)*/
1025 LttTime end
= ltt_time_infinite
;
1026 g_assert(g_slist_length(*list_in
) != 0);
1028 lttv_process_traceset_middle(tsc
, end
, CHUNK_NUM_EVENTS
, NULL
);
1031 /* 3. After the chunk */
1033 /* 3.1 call after_chunk hooks for list_in */
1035 GSList
*iter
= *list_in
;
1036 LttvHooks
*hook_remover
= lttv_hooks_new();
1037 /* - for each request in list_in */
1038 while(iter
!= NULL
) {
1040 BackgroundRequest
*bg_req
= (BackgroundRequest
*)iter
->data
;
1041 /* - Call after chunk hooks for list_in */
1042 /* - remove hooks from context */
1043 lttvwindowtraces_remove_computation_hooks(bg_req
->module_name
,
1046 iter
= g_slist_next(iter
);
1048 lttv_hooks_call(hook_remover
,tsc
);
1049 lttv_hooks_destroy(hook_remover
);
1052 /* 3.2 for each notify_in */
1054 GSList
*iter
= *notify_in
;
1055 LttvTracefileContext
*tfc
= lttv_traceset_context_get_current_tfc(tsc
);
1057 while(iter
!= NULL
) {
1058 gboolean remove
= FALSE
;
1059 gboolean free_data
= FALSE
;
1061 BackgroundNotify
*notify_req
= (BackgroundNotify
*)iter
->data
;
1063 /* - if current time >= notify time, call notify and remove from
1065 * - if current position >= notify position, call notify and remove
1069 ltt_time_compare(notify_req
->notify_time
, tfc
->timestamp
) <= 0)
1071 (notify_req
->notify_position
!= NULL
&&
1072 lttv_traceset_context_ctx_pos_compare(tsc
,
1073 notify_req
->notify_position
) >= 0)
1076 lttv_hooks_call(notify_req
->notify
, notify_req
);
1085 GSList
*remove_iter
= iter
;
1087 iter
= g_slist_next(iter
);
1089 notify_request_free((BackgroundNotify
*)remove_iter
->data
);
1090 *notify_in
= g_slist_remove_link(*notify_in
, remove_iter
);
1091 } else { // not remove
1092 iter
= g_slist_next(iter
);
1098 LttvTracefileContext
*tfc
= lttv_traceset_context_get_current_tfc(tsc
);
1099 /* 3.3 if end of trace reached */
1101 g_debug("Current time : %lu sec, %lu nsec",
1102 tfc
->timestamp
.tv_sec
, tfc
->timestamp
.tv_nsec
);
1103 if(tfc
== NULL
|| ltt_time_compare(tfc
->timestamp
,
1104 tsc
->time_span
.end_time
) > 0) {
1106 /* - for each request in list_in */
1108 GSList
*iter
= *list_in
;
1110 while(iter
!= NULL
) {
1111 gboolean remove
= FALSE
;
1112 gboolean free_data
= FALSE
;
1114 BackgroundRequest
*bg_req
= (BackgroundRequest
*)iter
->data
;
1116 /* - set hooks'in_progress flag to FALSE */
1117 lttvwindowtraces_unset_in_progress(bg_req
->module_name
,
1119 /* - set hooks'ready flag to TRUE */
1120 lttvwindowtraces_set_ready(bg_req
->module_name
,
1122 /* - call after request hook */
1123 /* Get after request hook */
1124 LttvAttribute
*module_attribute
;
1126 g_assert(module_attribute
=
1127 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(
1128 LTTV_IATTRIBUTE(g_attribute
),
1129 LTTV_COMPUTATION
)));
1131 g_assert(module_attribute
=
1132 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(
1133 LTTV_IATTRIBUTE(module_attribute
),
1134 bg_req
->module_name
)));
1136 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(module_attribute
),
1139 g_assert(type
== LTTV_POINTER
);
1140 LttvHooks
*after_request
= (LttvHooks
*)*(value
.v_pointer
);
1142 if(after_request
!= NULL
) lttv_hooks_call(after_request
, tsc
);
1143 /* - remove request */
1150 GSList
*remove_iter
= iter
;
1152 iter
= g_slist_next(iter
);
1153 if(free_data
) g_free(remove_iter
->data
);
1154 *list_in
= g_slist_remove_link(*list_in
, remove_iter
);
1155 } else { // not remove
1156 iter
= g_slist_next(iter
);
1161 /* - for each notifications in notify_in */
1163 GSList
*iter
= *notify_in
;
1165 while(iter
!= NULL
) {
1166 gboolean remove
= FALSE
;
1167 gboolean free_data
= FALSE
;
1169 BackgroundNotify
*notify_req
= (BackgroundNotify
*)iter
->data
;
1171 /* - call notify and remove from notify_in */
1172 lttv_hooks_call(notify_req
->notify
, notify_req
);
1179 GSList
*remove_iter
= iter
;
1181 iter
= g_slist_next(iter
);
1183 notify_request_free((BackgroundNotify
*)remove_iter
->data
);
1184 *notify_in
= g_slist_remove_link(*notify_in
, remove_iter
);
1185 } else { // not remove
1186 iter
= g_slist_next(iter
);
1191 /* - reset the context */
1192 LTTV_TRACESET_CONTEXT_GET_CLASS(tsc
)->fini(tsc
);
1193 LTTV_TRACESET_CONTEXT_GET_CLASS(tsc
)->init(tsc
,ts
);
1195 /* - if list_out is empty */
1196 if(g_slist_length(*list_out
) == 0) {
1197 /* - return FALSE (scheduler stopped) */
1198 g_debug("Background computation scheduler stopped");
1199 g_info("Background computation finished for trace %p", trace
);
1200 /* FIXME : remove status bar info, need context id and message id */
1206 /* 3.4 else, end of trace not reached */
1207 /* - return TRUE (scheduler still registered) */
1208 g_debug("Background computation left");
1213 /* 4. Unlock traces */
1215 //lttv_process_traceset_get_sync_data(tsc);
1219 iter_trace
<lttv_traceset_number(tsc
->ts
);
1221 LttvTrace
*trace_v
= lttv_traceset_get(tsc
->ts
, iter_trace
);
1223 lttvwindowtraces_unlock(trace_v
);
1232 * Register the background computation hooks for a specific module. It adds the
1233 * computation hooks to the global attrubutes, under "computation/module name".
1235 * @param module_name A GQuark : the name of the module which computes the
1238 void lttvwindowtraces_register_computation_hooks(LttvAttributeName module_name
,
1239 LttvHooks
*before_chunk_traceset
,
1240 LttvHooks
*before_chunk_trace
,
1241 LttvHooks
*before_chunk_tracefile
,
1242 LttvHooks
*after_chunk_traceset
,
1243 LttvHooks
*after_chunk_trace
,
1244 LttvHooks
*after_chunk_tracefile
,
1245 LttvHooks
*before_request
,
1246 LttvHooks
*after_request
,
1247 LttvHooks
*event_hook
,
1248 LttvHooksById
*event_hook_by_id
,
1249 LttvHooks
*hook_adder
,
1250 LttvHooks
*hook_remover
)
1252 LttvAttribute
*g_attribute
= lttv_global_attributes();
1253 LttvAttribute
*attribute
;
1254 LttvAttributeValue value
;
1256 g_assert(attribute
=
1257 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute
),
1258 LTTV_COMPUTATION
)));
1260 g_assert(attribute
=
1261 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute
),
1264 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1265 LTTV_BEFORE_CHUNK_TRACESET
,
1268 *(value
.v_pointer
) = before_chunk_traceset
;
1270 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1271 LTTV_BEFORE_CHUNK_TRACE
,
1274 *(value
.v_pointer
) = before_chunk_trace
;
1276 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1277 LTTV_BEFORE_CHUNK_TRACEFILE
,
1280 *(value
.v_pointer
) = before_chunk_tracefile
;
1282 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1283 LTTV_AFTER_CHUNK_TRACESET
,
1286 *(value
.v_pointer
) = after_chunk_traceset
;
1288 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1289 LTTV_AFTER_CHUNK_TRACE
,
1292 *(value
.v_pointer
) = after_chunk_trace
;
1294 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1295 LTTV_AFTER_CHUNK_TRACEFILE
,
1298 *(value
.v_pointer
) = after_chunk_tracefile
;
1300 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1301 LTTV_BEFORE_REQUEST
,
1304 *(value
.v_pointer
) = before_request
;
1306 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1310 *(value
.v_pointer
) = after_request
;
1312 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1316 *(value
.v_pointer
) = event_hook
;
1318 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1319 LTTV_EVENT_HOOK_BY_ID
,
1322 *(value
.v_pointer
) = event_hook_by_id
;
1324 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1328 *(value
.v_pointer
) = hook_adder
;
1330 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1334 *(value
.v_pointer
) = hook_remover
;
1340 * It removes all the requests than can be currently processed by the
1341 * background computation algorithm for all the traces (list_in and list_out).
1343 * Leaves the flag to in_progress or none.. depending if current or queue
1345 * @param module_name A GQuark : the name of the module which computes the
1348 void lttvwindowtraces_unregister_requests(LttvAttributeName module_name
)
1352 for(i
=0;i
<lttvwindowtraces_get_number();i
++) {
1353 LttvTrace
*trace_v
= lttvwindowtraces_get_trace(i
);
1354 g_assert(trace_v
!= NULL
);
1356 LttvAttribute
*attribute
= lttv_trace_attribute(trace_v
);
1357 LttvAttributeValue value
;
1358 GSList
**queue
, **current
;
1361 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1362 LTTV_REQUESTS_QUEUE
,
1365 queue
= (GSList
**)(value
.v_pointer
);
1368 while(iter
!= NULL
) {
1369 gboolean remove
= FALSE
;
1370 gboolean free_data
= FALSE
;
1372 BackgroundRequest
*bg_req
= (BackgroundRequest
*)iter
->data
;
1374 if(bg_req
->module_name
== module_name
) {
1382 GSList
*remove_iter
= iter
;
1384 iter
= g_slist_next(iter
);
1385 if(free_data
) g_free(remove_iter
->data
);
1386 *queue
= g_slist_remove_link(*queue
, remove_iter
);
1387 } else { // not remove
1388 iter
= g_slist_next(iter
);
1393 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1394 LTTV_REQUESTS_CURRENT
,
1397 current
= (GSList
**)(value
.v_pointer
);
1400 while(iter
!= NULL
) {
1401 gboolean remove
= FALSE
;
1402 gboolean free_data
= FALSE
;
1404 BackgroundRequest
*bg_req
= (BackgroundRequest
*)iter
->data
;
1406 if(bg_req
->module_name
== module_name
) {
1414 GSList
*remove_iter
= iter
;
1416 iter
= g_slist_next(iter
);
1417 if(free_data
) g_free(remove_iter
->data
);
1418 *current
= g_slist_remove_link(*current
, remove_iter
);
1419 } else { // not remove
1420 iter
= g_slist_next(iter
);
1428 * Unregister the background computation hooks for a specific module.
1430 * It also removes all the requests than can be currently processed by the
1431 * background computation algorithm for all the traces (list_in and list_out).
1433 * @param module_name A GQuark : the name of the module which computes the
1437 void lttvwindowtraces_unregister_computation_hooks
1438 (LttvAttributeName module_name
)
1440 LttvAttribute
*g_attribute
= lttv_global_attributes();
1441 LttvAttribute
*attribute
;
1442 LttvAttributeValue value
;
1444 g_assert(attribute
=
1445 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute
),
1446 LTTV_COMPUTATION
)));
1447 g_assert(attribute
=
1448 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(attribute
),
1452 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1453 LTTV_BEFORE_CHUNK_TRACESET
,
1456 LttvHooks
*before_chunk_traceset
= (LttvHooks
*)*(value
.v_pointer
);
1457 if(before_chunk_traceset
!= NULL
)
1458 lttv_hooks_destroy(before_chunk_traceset
);
1460 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1461 LTTV_BEFORE_CHUNK_TRACE
,
1464 LttvHooks
*before_chunk_trace
= (LttvHooks
*)*(value
.v_pointer
);
1465 if(before_chunk_trace
!= NULL
)
1466 lttv_hooks_destroy(before_chunk_trace
);
1468 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1469 LTTV_BEFORE_CHUNK_TRACEFILE
,
1472 LttvHooks
*before_chunk_tracefile
= (LttvHooks
*)*(value
.v_pointer
);
1473 if(before_chunk_tracefile
!= NULL
)
1474 lttv_hooks_destroy(before_chunk_tracefile
);
1476 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1477 LTTV_AFTER_CHUNK_TRACESET
,
1480 LttvHooks
*after_chunk_traceset
= (LttvHooks
*)*(value
.v_pointer
);
1481 if(after_chunk_traceset
!= NULL
)
1482 lttv_hooks_destroy(after_chunk_traceset
);
1484 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1485 LTTV_AFTER_CHUNK_TRACE
,
1488 LttvHooks
*after_chunk_trace
= (LttvHooks
*)*(value
.v_pointer
);
1489 if(after_chunk_trace
!= NULL
)
1490 lttv_hooks_destroy(after_chunk_trace
);
1492 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1493 LTTV_AFTER_CHUNK_TRACEFILE
,
1496 LttvHooks
*after_chunk_tracefile
= (LttvHooks
*)*(value
.v_pointer
);
1497 if(after_chunk_tracefile
!= NULL
)
1498 lttv_hooks_destroy(after_chunk_tracefile
);
1500 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1501 LTTV_BEFORE_REQUEST
,
1504 LttvHooks
*before_request
= (LttvHooks
*)*(value
.v_pointer
);
1505 if(before_request
!= NULL
)
1506 lttv_hooks_destroy(before_request
);
1508 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1512 LttvHooks
*after_request
= (LttvHooks
*)*(value
.v_pointer
);
1513 if(after_request
!= NULL
)
1514 lttv_hooks_destroy(after_request
);
1516 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1520 LttvHooks
*event_hook
= (LttvHooks
*)*(value
.v_pointer
);
1521 if(event_hook
!= NULL
)
1522 lttv_hooks_destroy(event_hook
);
1524 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1525 LTTV_EVENT_HOOK_BY_ID
,
1528 LttvHooksById
*event_hook_by_id
= (LttvHooksById
*)*(value
.v_pointer
);
1529 if(event_hook_by_id
!= NULL
)
1530 lttv_hooks_by_id_destroy(event_hook_by_id
);
1532 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1536 LttvHooks
*hook_adder
= (LttvHooks
*)*(value
.v_pointer
);
1537 if(hook_adder
!= NULL
)
1538 lttv_hooks_destroy(hook_adder
);
1540 g_assert(lttv_iattribute_find(LTTV_IATTRIBUTE(attribute
),
1544 LttvHooks
*hook_remover
= (LttvHooks
*)*(value
.v_pointer
);
1545 if(hook_remover
!= NULL
)
1546 lttv_hooks_destroy(hook_remover
);
1549 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute
),
1550 LTTV_EVENT_HOOK_BY_ID
);
1551 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute
),
1554 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute
),
1555 LTTV_AFTER_REQUEST
);
1556 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute
),
1557 LTTV_BEFORE_REQUEST
);
1559 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute
),
1560 LTTV_AFTER_CHUNK_TRACEFILE
);
1561 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute
),
1562 LTTV_AFTER_CHUNK_TRACE
);
1563 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute
),
1564 LTTV_AFTER_CHUNK_TRACESET
);
1566 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute
),
1567 LTTV_BEFORE_CHUNK_TRACEFILE
);
1568 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute
),
1569 LTTV_BEFORE_CHUNK_TRACE
);
1570 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute
),
1571 LTTV_BEFORE_CHUNK_TRACESET
);
1572 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute
),
1574 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute
),
1577 /* finally, remove module name */
1578 g_assert(attribute
=
1579 LTTV_ATTRIBUTE(lttv_iattribute_find_subdir(LTTV_IATTRIBUTE(g_attribute
),
1580 LTTV_COMPUTATION
)));
1581 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute
),
1587 * Lock a trace so no other instance can use it.
1589 * @param trace The trace to lock.
1590 * @return 0 on success, -1 if cannot get lock.
1592 gint
lttvwindowtraces_lock(LttvTrace
*trace
)
1594 LttvAttribute
*attribute
= lttv_trace_attribute(trace
);
1595 LttvAttributeValue value
;
1596 LttvAttributeType type
;
1598 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute
),
1601 /* Verify the absence of the lock. */
1602 if(type
!= LTTV_NONE
) {
1603 g_critical("Cannot take trace lock");
1607 value
= lttv_iattribute_add(LTTV_IATTRIBUTE(attribute
),
1610 /* the value is left unset. The only presence of the attribute is necessary.
1619 * @param trace The trace to unlock.
1620 * @return 0 on success, -1 if cannot unlock (not locked ?).
1622 gint
lttvwindowtraces_unlock(LttvTrace
*trace
)
1624 LttvAttribute
*attribute
= lttv_trace_attribute(trace
);
1625 LttvAttributeType type
;
1626 LttvAttributeValue value
;
1628 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute
),
1631 /* Verify the presence of the lock. */
1632 if(type
== LTTV_NONE
) {
1633 g_critical("Cannot release trace lock");
1637 lttv_iattribute_remove_by_name(LTTV_IATTRIBUTE(attribute
),
1644 * Verify if a trace is locked.
1646 * @param trace The trace to verify.
1647 * @return TRUE if locked, FALSE is unlocked.
1649 gint
lttvwindowtraces_get_lock_state(LttvTrace
*trace
)
1651 LttvAttribute
*attribute
= lttv_trace_attribute(trace
);
1652 LttvAttributeType type
;
1653 LttvAttributeValue value
;
1655 type
= lttv_iattribute_get_by_name(LTTV_IATTRIBUTE(attribute
),
1658 /* The only presence of the attribute is necessary. */
1659 if(type
== LTTV_NONE
)