1 /* This file is part of the Linux Trace Toolkit viewer
2 * Copyright (C) 2003-2004 Michel Dagenais
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,
24 #include <lttv/tracecontext.h>
25 #include <ltt/event.h>
26 #include <ltt/facility.h>
27 #include <ltt/trace.h>
34 gint
compare_tracefile(gconstpointer a
, gconstpointer b
)
38 const LttvTracefileContext
*trace_a
= (const LttvTracefileContext
*)a
;
39 const LttvTracefileContext
*trace_b
= (const LttvTracefileContext
*)b
;
41 if(likely(trace_a
!= trace_b
)) {
42 comparison
= ltt_time_compare(trace_b
->timestamp
, trace_a
->timestamp
);
43 if(unlikely(comparison
== 0)) {
44 if(trace_a
->index
< trace_b
->index
) comparison
= -1;
45 else if(trace_a
->index
> trace_b
->index
) comparison
= 1;
46 else if(trace_a
->t_context
->index
< trace_b
->t_context
->index
)
48 else if(trace_a
->t_context
->index
> trace_b
->t_context
->index
)
55 struct _LttvTracesetContextPosition
{
56 GArray
*ep
; /* Array of LttEventPosition */
57 GArray
*tfc
; /* Array of corresponding
59 LttTime timestamp
; /* Current time at the saved position */
62 void lttv_context_init(LttvTracesetContext
*self
, LttvTraceset
*ts
)
64 LTTV_TRACESET_CONTEXT_GET_CLASS(self
)->init(self
, ts
);
68 void lttv_context_fini(LttvTracesetContext
*self
)
70 LTTV_TRACESET_CONTEXT_GET_CLASS(self
)->fini(self
);
75 lttv_context_new_traceset_context(LttvTracesetContext
*self
)
77 return LTTV_TRACESET_CONTEXT_GET_CLASS(self
)->new_traceset_context(self
);
84 lttv_context_new_trace_context(LttvTracesetContext
*self
)
86 return LTTV_TRACESET_CONTEXT_GET_CLASS(self
)->new_trace_context(self
);
90 LttvTracefileContext
*
91 lttv_context_new_tracefile_context(LttvTracesetContext
*self
)
93 return LTTV_TRACESET_CONTEXT_GET_CLASS(self
)->new_tracefile_context(self
);
96 /****************************************************************************
97 * lttv_traceset_context_compute_time_span
99 * Keep the time span is sync with on the fly addition and removal of traces
100 * in a trace set. It must be called each time a trace is added/removed from
101 * the traceset. It could be more efficient to call it only once a bunch
102 * of traces are loaded, but the calculation is not long, so it's not
105 * Author : Xang Xiu Yang
106 ***************************************************************************/
107 static void lttv_traceset_context_compute_time_span(
108 LttvTracesetContext
*self
,
109 TimeInterval
*time_span
)
111 LttvTraceset
* traceset
= self
->ts
;
112 int numTraces
= lttv_traceset_number(traceset
);
115 LttvTraceContext
*tc
;
118 time_span
->start_time
.tv_sec
= 0;
119 time_span
->start_time
.tv_nsec
= 0;
120 time_span
->end_time
.tv_sec
= 0;
121 time_span
->end_time
.tv_nsec
= 0;
123 for(i
=0; i
<numTraces
;i
++){
124 tc
= self
->traces
[i
];
127 ltt_trace_time_span_get(trace
, &s
, &e
);
130 time_span
->start_time
= s
;
131 time_span
->end_time
= e
;
133 if(s
.tv_sec
< time_span
->start_time
.tv_sec
134 || (s
.tv_sec
== time_span
->start_time
.tv_sec
135 && s
.tv_nsec
< time_span
->start_time
.tv_nsec
))
136 time_span
->start_time
= s
;
137 if(e
.tv_sec
> time_span
->end_time
.tv_sec
138 || (e
.tv_sec
== time_span
->end_time
.tv_sec
139 && e
.tv_nsec
> time_span
->end_time
.tv_nsec
))
140 time_span
->end_time
= e
;
145 static void init_tracefile_context(LttTracefile
*tracefile
,
146 LttvTraceContext
*tc
)
148 LttvTracefileContext
*tfc
;
149 LttvTracesetContext
*tsc
= tc
->ts_context
;
151 tfc
= LTTV_TRACESET_CONTEXT_GET_CLASS(tsc
)->new_tracefile_context(tsc
);
153 tfc
->index
= tc
->tracefiles
->len
;
154 tc
->tracefiles
= g_array_append_val(tc
->tracefiles
, tfc
);
159 tfc
->event
= lttv_hooks_new();
160 tfc
->event_by_id
= lttv_hooks_by_id_new();
161 tfc
->a
= g_object_new(LTTV_ATTRIBUTE_TYPE
, NULL
);
166 init(LttvTracesetContext
*self
, LttvTraceset
*ts
)
168 guint i
, j
, nb_trace
;
170 LttvTraceContext
*tc
;
172 GData
**tracefiles_groups
;
174 struct compute_tracefile_group_args args
;
176 nb_trace
= lttv_traceset_number(ts
);
178 self
->traces
= g_new(LttvTraceContext
*, nb_trace
);
179 self
->a
= g_object_new(LTTV_ATTRIBUTE_TYPE
, NULL
);
180 self
->ts_a
= lttv_traceset_attribute(ts
);
181 for(i
= 0 ; i
< nb_trace
; i
++) {
182 tc
= LTTV_TRACESET_CONTEXT_GET_CLASS(self
)->new_trace_context(self
);
183 self
->traces
[i
] = tc
;
185 tc
->ts_context
= self
;
187 tc
->vt
= lttv_traceset_get(ts
, i
);
188 tc
->t
= lttv_trace(tc
->vt
);
189 tc
->a
= g_object_new(LTTV_ATTRIBUTE_TYPE
, NULL
);
190 tc
->t_a
= lttv_trace_attribute(tc
->vt
);
191 tc
->tracefiles
= g_array_sized_new(FALSE
, TRUE
,
192 sizeof(LttvTracefileContext
*), 10);
194 tracefiles_groups
= ltt_trace_get_tracefiles_groups(tc
->t
);
195 if(tracefiles_groups
!= NULL
) {
196 args
.func
= (ForEachTraceFileFunc
)init_tracefile_context
;
199 g_datalist_foreach(tracefiles_groups
,
200 (GDataForeachFunc
)compute_tracefile_group
,
205 nb_control
= ltt_trace_control_tracefile_number(tc
->t
);
206 nb_per_cpu
= ltt_trace_per_cpu_tracefile_number(tc
->t
);
207 nb_tracefile
= nb_control
+ nb_per_cpu
;
208 tc
->tracefiles
= g_new(LttvTracefileContext
*, nb_tracefile
);
210 for(j
= 0 ; j
< nb_tracefile
; j
++) {
211 tfc
= LTTV_TRACESET_CONTEXT_GET_CLASS(self
)->new_tracefile_context(self
);
212 tc
->tracefiles
[j
] = tfc
;
217 tfc
->tf
= ltt_trace_control_tracefile_get(tc
->t
, j
);
220 tfc
->control
= FALSE
;
221 tfc
->tf
= ltt_trace_per_cpu_tracefile_get(tc
->t
, j
- nb_control
);
225 tfc
->e
= ltt_event_new();
226 tfc
->event
= lttv_hooks_new();
227 tfc
->event_by_id
= lttv_hooks_by_id_new();
228 tfc
->a
= g_object_new(LTTV_ATTRIBUTE_TYPE
, NULL
);
233 self
->pqueue
= g_tree_new(compare_tracefile
);
234 lttv_process_traceset_seek_time(self
, ltt_time_zero
);
235 lttv_traceset_context_compute_time_span(self
, &self
->time_span
);
240 void fini(LttvTracesetContext
*self
)
242 guint i
, j
, nb_trace
, nb_tracefile
;
244 LttvTraceContext
*tc
;
246 LttvTracefileContext
**tfc
;
248 LttvTraceset
*ts
= self
->ts
;
252 g_tree_destroy(self
->pqueue
);
253 g_object_unref(self
->a
);
255 nb_trace
= lttv_traceset_number(ts
);
257 for(i
= 0 ; i
< nb_trace
; i
++) {
258 tc
= self
->traces
[i
];
260 g_object_unref(tc
->a
);
262 nb_tracefile
= tc
->tracefiles
->len
;
264 for(j
= 0 ; j
< nb_tracefile
; j
++) {
265 tfc
= &g_array_index(tc
->tracefiles
, LttvTracefileContext
*, j
);
266 lttv_hooks_destroy((*tfc
)->event
);
267 lttv_hooks_by_id_destroy((*tfc
)->event_by_id
);
268 g_object_unref((*tfc
)->a
);
269 g_object_unref(*tfc
);
271 g_array_free(tc
->tracefiles
, TRUE
);
274 g_free(self
->traces
);
278 void lttv_traceset_context_add_hooks(LttvTracesetContext
*self
,
279 LttvHooks
*before_traceset
,
280 LttvHooks
*before_trace
,
281 LttvHooks
*before_tracefile
,
283 LttvHooksById
*event_by_id
)
285 LttvTraceset
*ts
= self
->ts
;
289 LttvTraceContext
*tc
;
291 lttv_hooks_call(before_traceset
, self
);
293 nb_trace
= lttv_traceset_number(ts
);
295 for(i
= 0 ; i
< nb_trace
; i
++) {
296 tc
= self
->traces
[i
];
297 lttv_trace_context_add_hooks(tc
,
306 void lttv_traceset_context_remove_hooks(LttvTracesetContext
*self
,
307 LttvHooks
*after_traceset
,
308 LttvHooks
*after_trace
,
309 LttvHooks
*after_tracefile
,
311 LttvHooksById
*event_by_id
)
314 LttvTraceset
*ts
= self
->ts
;
318 LttvTraceContext
*tc
;
320 nb_trace
= lttv_traceset_number(ts
);
322 for(i
= 0 ; i
< nb_trace
; i
++) {
323 tc
= self
->traces
[i
];
324 lttv_trace_context_remove_hooks(tc
,
331 lttv_hooks_call(after_traceset
, self
);
336 void lttv_trace_context_add_hooks(LttvTraceContext
*self
,
337 LttvHooks
*before_trace
,
338 LttvHooks
*before_tracefile
,
340 LttvHooksById
*event_by_id
)
342 guint i
, nb_tracefile
;
344 LttvTracefileContext
**tfc
;
346 lttv_hooks_call(before_trace
, self
);
348 nb_tracefile
= self
->tracefiles
->len
;
350 for(i
= 0 ; i
< nb_tracefile
; i
++) {
351 tfc
= &g_array_index(self
->tracefiles
, LttvTracefileContext
*, i
);
352 lttv_tracefile_context_add_hooks(*tfc
,
361 void lttv_trace_context_remove_hooks(LttvTraceContext
*self
,
362 LttvHooks
*after_trace
,
363 LttvHooks
*after_tracefile
,
365 LttvHooksById
*event_by_id
)
367 guint i
, nb_tracefile
;
369 LttvTracefileContext
**tfc
;
371 nb_tracefile
= self
->tracefiles
->len
;
373 for(i
= 0 ; i
< nb_tracefile
; i
++) {
374 tfc
= &g_array_index(self
->tracefiles
, LttvTracefileContext
*, i
);
375 lttv_tracefile_context_remove_hooks(*tfc
,
381 lttv_hooks_call(after_trace
, self
);
384 void lttv_tracefile_context_add_hooks(LttvTracefileContext
*self
,
385 LttvHooks
*before_tracefile
,
387 LttvHooksById
*event_by_id
)
393 lttv_hooks_call(before_tracefile
, self
);
394 lttv_hooks_add_list(self
->event
, event
);
395 if(event_by_id
!= NULL
) {
396 for(i
= 0; i
< event_by_id
->array
->len
; i
++) {
397 index
= g_array_index(event_by_id
->array
, guint
, i
);
398 hook
= lttv_hooks_by_id_find(self
->event_by_id
, index
);
399 lttv_hooks_add_list(hook
, lttv_hooks_by_id_get(event_by_id
, index
));
404 void lttv_tracefile_context_remove_hooks(LttvTracefileContext
*self
,
405 LttvHooks
*after_tracefile
,
407 LttvHooksById
*event_by_id
)
413 lttv_hooks_remove_list(self
->event
, event
);
414 if(event_by_id
!= NULL
) {
415 for(i
= 0; i
< event_by_id
->array
->len
; i
++) {
416 index
= g_array_index(event_by_id
->array
, guint
, i
);
417 hook
= lttv_hooks_by_id_get(self
->event_by_id
, index
);
419 lttv_hooks_remove_list(hook
, lttv_hooks_by_id_get(event_by_id
, index
));
423 lttv_hooks_call(after_tracefile
, self
);
428 void lttv_tracefile_context_add_hooks_by_id(LttvTracefileContext
*tfc
,
430 LttvHooks
*event_by_id
)
433 h
= lttv_hooks_by_id_find(tfc
->event_by_id
, i
);
434 lttv_hooks_add_list(h
, event_by_id
);
437 void lttv_tracefile_context_remove_hooks_by_id(LttvTracefileContext
*tfc
,
440 lttv_hooks_by_id_remove(tfc
->event_by_id
, i
);
443 static LttvTracesetContext
*
444 new_traceset_context(LttvTracesetContext
*self
)
446 return g_object_new(LTTV_TRACESET_CONTEXT_TYPE
, NULL
);
450 static LttvTraceContext
*
451 new_trace_context(LttvTracesetContext
*self
)
453 return g_object_new(LTTV_TRACE_CONTEXT_TYPE
, NULL
);
457 static LttvTracefileContext
*
458 new_tracefile_context(LttvTracesetContext
*self
)
460 return g_object_new(LTTV_TRACEFILE_CONTEXT_TYPE
, NULL
);
465 traceset_context_instance_init (GTypeInstance
*instance
, gpointer g_class
)
467 /* Be careful of anything which would not work well with shallow copies */
472 traceset_context_finalize (LttvTracesetContext
*self
)
474 G_OBJECT_CLASS(g_type_class_peek(g_type_parent(LTTV_TRACESET_CONTEXT_TYPE
)))
475 ->finalize(G_OBJECT(self
));
480 traceset_context_class_init (LttvTracesetContextClass
*klass
)
482 GObjectClass
*gobject_class
= G_OBJECT_CLASS(klass
);
484 gobject_class
->finalize
= (void (*)(GObject
*self
))traceset_context_finalize
;
487 klass
->new_traceset_context
= new_traceset_context
;
488 klass
->new_trace_context
= new_trace_context
;
489 klass
->new_tracefile_context
= new_tracefile_context
;
494 lttv_traceset_context_get_type(void)
496 static GType type
= 0;
498 static const GTypeInfo info
= {
499 sizeof (LttvTracesetContextClass
),
500 NULL
, /* base_init */
501 NULL
, /* base_finalize */
502 (GClassInitFunc
) traceset_context_class_init
, /* class_init */
503 NULL
, /* class_finalize */
504 NULL
, /* class_data */
505 sizeof (LttvTracesetContext
),
507 (GInstanceInitFunc
) traceset_context_instance_init
, /* instance_init */
508 NULL
/* Value handling */
511 type
= g_type_register_static (G_TYPE_OBJECT
, "LttvTracesetContextType",
519 trace_context_instance_init (GTypeInstance
*instance
, gpointer g_class
)
521 /* Be careful of anything which would not work well with shallow copies */
526 trace_context_finalize (LttvTraceContext
*self
)
528 G_OBJECT_CLASS(g_type_class_peek(g_type_parent(LTTV_TRACE_CONTEXT_TYPE
)))->
529 finalize(G_OBJECT(self
));
534 trace_context_class_init (LttvTraceContextClass
*klass
)
536 GObjectClass
*gobject_class
= G_OBJECT_CLASS(klass
);
538 gobject_class
->finalize
= (void (*)(GObject
*self
)) trace_context_finalize
;
543 lttv_trace_context_get_type(void)
545 static GType type
= 0;
547 static const GTypeInfo info
= {
548 sizeof (LttvTraceContextClass
),
549 NULL
, /* base_init */
550 NULL
, /* base_finalize */
551 (GClassInitFunc
) trace_context_class_init
, /* class_init */
552 NULL
, /* class_finalize */
553 NULL
, /* class_data */
554 sizeof (LttvTraceContext
),
556 (GInstanceInitFunc
) trace_context_instance_init
, /* instance_init */
557 NULL
/* Value handling */
560 type
= g_type_register_static (G_TYPE_OBJECT
, "LttvTraceContextType",
568 tracefile_context_instance_init (GTypeInstance
*instance
, gpointer g_class
)
570 /* Be careful of anything which would not work well with shallow copies */
575 tracefile_context_finalize (LttvTracefileContext
*self
)
577 G_OBJECT_CLASS(g_type_class_peek(g_type_parent(LTTV_TRACEFILE_CONTEXT_TYPE
)))
578 ->finalize(G_OBJECT(self
));
583 tracefile_context_class_init (LttvTracefileContextClass
*klass
)
585 GObjectClass
*gobject_class
= G_OBJECT_CLASS(klass
);
587 gobject_class
->finalize
= (void (*)(GObject
*self
))tracefile_context_finalize
;
592 lttv_tracefile_context_get_type(void)
594 static GType type
= 0;
596 static const GTypeInfo info
= {
597 sizeof (LttvTracefileContextClass
),
598 NULL
, /* base_init */
599 NULL
, /* base_finalize */
600 (GClassInitFunc
) tracefile_context_class_init
, /* class_init */
601 NULL
, /* class_finalize */
602 NULL
, /* class_data */
603 sizeof (LttvTracefileContext
),
605 (GInstanceInitFunc
) tracefile_context_instance_init
, /* instance_init */
606 NULL
/* Value handling */
609 type
= g_type_register_static (G_TYPE_OBJECT
, "LttvTracefileContextType",
617 static gboolean
get_first(gpointer key
, gpointer value
, gpointer user_data
) {
618 g_assert(key
== value
);
619 *((LttvTracefileContext
**)user_data
) = (LttvTracefileContext
*)value
;
623 static gboolean
test_tree(gpointer key
, gpointer value
, gpointer user_data
) {
625 LttvTracefileContext
*tfc
= (LttvTracefileContext
*)key
;
627 g_debug("Tracefile name %s, time %lu.%lu, tfi %u, ti %u",
628 g_quark_to_string(ltt_tracefile_name(tfc
->tf
)),
629 tfc
->timestamp
.tv_sec
, tfc
->timestamp
.tv_nsec
,
630 tfc
->index
, tfc
->t_context
->index
);
632 if(((LttvTracefileContext
*)user_data
) == (LttvTracefileContext
*)value
) {
633 g_assert(compare_tracefile(user_data
, value
) == 0);
635 g_assert(compare_tracefile(user_data
, value
) != 0);
637 //g_assert(((LttvTracefileContext *)user_data) != (LttvTracefileContext *)value);
643 void lttv_process_traceset_begin(LttvTracesetContext
*self
,
644 LttvHooks
*before_traceset
,
645 LttvHooks
*before_trace
,
646 LttvHooks
*before_tracefile
,
648 LttvHooksById
*event_by_id
)
651 /* simply add hooks in context. _before hooks are called by add_hooks. */
652 /* It calls all before_traceset, before_trace, and before_tracefile hooks. */
653 lttv_traceset_context_add_hooks(self
,
662 /* Note : a _middle must be preceded from a _seek or another middle */
663 guint
lttv_process_traceset_middle(LttvTracesetContext
*self
,
666 const LttvTracesetContextPosition
*end_position
)
668 GTree
*pqueue
= self
->pqueue
;
670 guint fac_id
, ev_id
, id
;
672 LttvTracefileContext
*tfc
;
678 guint read_ret
= FALSE
;
680 gboolean last_ret
= FALSE
; /* return value of the last hook list called */
682 /* Get the next event from the pqueue, call its hooks,
683 reinsert in the pqueue the following event from the same tracefile
684 unless the tracefile is finished or the event is later than the
689 g_tree_foreach(pqueue
, get_first
, &tfc
);
690 /* End of traceset : tfc is NULL */
691 if(unlikely(tfc
== NULL
))
697 * - the maximum number of events specified?
698 * - the end position ?
700 * then the read is finished. We leave the queue in the same state and
704 if(unlikely(last_ret
== TRUE
||
705 ((count
>= nb_events
) && (nb_events
!= G_MAXULONG
)) ||
706 (end_position
!=NULL
&<tv_traceset_context_ctx_pos_compare(self
,
707 end_position
) == 0)||
708 ltt_time_compare(end
, tfc
->timestamp
) <= 0))
713 /* Get the tracefile with an event for the smallest time found. If two
714 or more tracefiles have events for the same time, hope that lookup
715 and remove are consistent. */
718 g_debug("test tree before remove");
719 g_tree_foreach(pqueue
, test_tree
, tfc
);
721 g_tree_remove(pqueue
, tfc
);
724 g_debug("test tree after remove");
725 g_tree_foreach(pqueue
, test_tree
, tfc
);
730 e
= ltt_tracefile_get_event(tfc
->tf
);
731 fac_id
= ltt_event_facility_id(e
);
732 ev_id
= ltt_event_eventtype_id(e
);
733 id
= GET_HOOK_ID(fac_id
, ev_id
);
734 last_ret
= lttv_hooks_call_merge(tfc
->event
, tfc
,
735 lttv_hooks_by_id_get(tfc
->event_by_id
, id
), tfc
);
737 read_ret
= ltt_tracefile_read(tfc
->tf
);
739 if(likely(!read_ret
)) {
740 g_debug("An event is ready");
741 tfc
->timestamp
= ltt_event_time(e
);
743 g_tree_insert(pqueue
, tfc
, tfc
);
745 tfc
->timestamp
= ltt_time_infinite
;
747 if(read_ret
== ERANGE
)
748 g_debug("End of trace");
750 g_error("Error happened in lttv_process_traceset_middle");
756 void lttv_process_traceset_end(LttvTracesetContext
*self
,
757 LttvHooks
*after_traceset
,
758 LttvHooks
*after_trace
,
759 LttvHooks
*after_tracefile
,
761 LttvHooksById
*event_by_id
)
763 /* Remove hooks from context. _after hooks are called by remove_hooks. */
764 /* It calls all after_traceset, after_trace, and after_tracefile hooks. */
765 lttv_traceset_context_remove_hooks(self
,
773 /* Subtile modification :
774 * if tracefile has no event at or after the time requested, it is not put in
775 * the queue, as the next read would fail. */
776 void lttv_process_trace_seek_time(LttvTraceContext
*self
, LttTime start
)
778 guint i
, nb_tracefile
;
782 LttvTracefileContext
**tfc
;
784 GTree
*pqueue
= self
->ts_context
->pqueue
;
786 nb_tracefile
= self
->tracefiles
->len
;
788 for(i
= 0 ; i
< nb_tracefile
; i
++) {
789 tfc
= &g_array_index(self
->tracefiles
, LttvTracefileContext
*, i
);
791 g_tree_remove(pqueue
, *tfc
);
793 ret
= ltt_tracefile_seek_time((*tfc
)->tf
, start
);
794 if(ret
== EPERM
) g_error("error in lttv_process_trace_seek_time seek");
796 if(ret
== 0) { /* not ERANGE especially */
797 (*tfc
)->timestamp
= ltt_event_time(ltt_tracefile_get_event((*tfc
)->tf
));
798 g_tree_insert(pqueue
, (*tfc
), (*tfc
));
800 (*tfc
)->timestamp
= ltt_time_infinite
;
806 void lttv_process_traceset_seek_time(LttvTracesetContext
*self
, LttTime start
)
810 LttvTraceContext
*tc
;
812 nb_trace
= lttv_traceset_number(self
->ts
);
813 for(i
= 0 ; i
< nb_trace
; i
++) {
814 tc
= self
->traces
[i
];
815 lttv_process_trace_seek_time(tc
, start
);
820 gboolean
lttv_process_traceset_seek_position(LttvTracesetContext
*self
,
821 const LttvTracesetContextPosition
*pos
)
824 LttvTraceContext
*tc
;
825 LttvTracefileContext
*tfc
;
827 g_tree_destroy(self
->pqueue
);
828 self
->pqueue
= g_tree_new(compare_tracefile
);
830 for(i
=0;i
<pos
->ep
->len
; i
++) {
831 LttEventPosition
**ep
= &g_array_index(pos
->ep
, LttEventPosition
*, i
);
832 LttvTracefileContext
**tfc
=
833 &g_array_index(pos
->tfc
, LttvTracefileContext
*, i
);
835 g_assert(ltt_tracefile_seek_position((*tfc
)->tf
, *ep
) == 0);
836 (*tfc
)->timestamp
= ltt_event_time(ltt_tracefile_get_event((*tfc
)->tf
));
837 g_tree_insert(self
->pqueue
, (*tfc
), (*tfc
));
839 (*tfc
)->timestamp
= ltt_time_infinite
;
848 find_field(LttEventType
*et
, const GQuark field
)
859 if(field
== 0) return NULL
;
861 f
= ltt_eventtype_field(et
);
862 t
= ltt_eventtype_type(et
);
863 g_assert(ltt_type_class(t
) == LTT_STRUCT
);
864 nb
= ltt_type_member_number(t
);
865 for(i
= 0 ; i
< nb
; i
++) {
866 ltt_type_member_type(t
, i
, &name
);
867 if(name
== field
) break;
870 return ltt_field_member(f
, i
);
873 LttvTraceHookByFacility
*lttv_trace_hook_get_fac(LttvTraceHook
*th
,
876 return &g_array_index(th
->fac_index
, LttvTraceHookByFacility
, facility_id
);
879 /* Get the first facility corresponding to the name. As the types must be
880 * compatible, it is relevant to use the field name and sizes of the first
881 * facility to create data structures and assume the data will be compatible
882 * thorough the trace */
883 LttvTraceHookByFacility
*lttv_trace_hook_get_first(LttvTraceHook
*th
)
885 g_assert(th
->fac_list
->len
> 0);
886 return g_array_index(th
->fac_list
, LttvTraceHookByFacility
*, 0);
890 /* Returns 0 on success, -1 if fails. */
892 lttv_trace_find_hook(LttTrace
*t
, GQuark facility
, GQuark event
,
893 GQuark field1
, GQuark field2
, GQuark field3
, LttvHook h
, LttvTraceHook
*th
)
897 LttEventType
*et
, *first_et
;
901 guint i
, fac_id
, ev_id
;
903 LttvTraceHookByFacility
*thf
, *first_thf
;
905 facilities
= ltt_trace_facility_get_by_name(t
, facility
);
907 if(unlikely(facilities
== NULL
)) goto facility_error
;
909 th
->fac_index
= g_array_sized_new(FALSE
, TRUE
,
910 sizeof(LttvTraceHookByFacility
),
912 th
->fac_index
= g_array_set_size(th
->fac_index
, NUM_FACILITIES
);
914 th
->fac_list
= g_array_sized_new(FALSE
, TRUE
,
915 sizeof(LttvTraceHookByFacility
*),
917 th
->fac_list
= g_array_set_size(th
->fac_list
, facilities
->len
);
919 fac_id
= g_array_index(facilities
, guint
, 0);
920 f
= ltt_trace_get_facility_by_num(t
, fac_id
);
922 et
= ltt_facility_eventtype_get_by_name(f
, event
);
923 if(unlikely(et
== NULL
)) goto event_error
;
925 thf
= &g_array_index(th
->fac_index
, LttvTraceHookByFacility
, fac_id
);
926 g_array_index(th
->fac_list
, LttvTraceHookByFacility
*, 0) = thf
;
928 ev_id
= ltt_eventtype_id(et
);
931 thf
->id
= GET_HOOK_ID(fac_id
, ev_id
);
932 thf
->f1
= find_field(et
, field1
);
933 thf
->f2
= find_field(et
, field2
);
934 thf
->f3
= find_field(et
, field3
);
938 /* Check for type compatibility too */
939 for(i
=1;i
<facilities
->len
;i
++) {
940 fac_id
= g_array_index(facilities
, guint
, i
);
941 f
= ltt_trace_get_facility_by_num(t
, fac_id
);
943 et
= ltt_facility_eventtype_get_by_name(f
, ltt_eventtype_name(et
));
944 if(unlikely(et
== NULL
)) goto event_error
;
946 thf
= &g_array_index(th
->fac_index
, LttvTraceHookByFacility
, fac_id
);
947 g_array_index(th
->fac_list
, LttvTraceHookByFacility
*, i
) = thf
;
948 ev_id
= ltt_eventtype_id(et
);
950 thf
->id
= GET_HOOK_ID(fac_id
, ev_id
);
951 thf
->f1
= find_field(et
, field1
);
952 if(check_fields_compatibility(first_et
, et
,
953 first_thf
->f1
, thf
->f1
))
956 thf
->f2
= find_field(et
, field2
);
957 if(check_fields_compatibility(first_et
, et
,
958 first_thf
->f2
, thf
->f2
))
961 thf
->f3
= find_field(et
, field3
);
962 if(check_fields_compatibility(first_et
, et
,
963 first_thf
->f3
, thf
->f3
))
972 g_error("Event type %s does not exist",
973 g_quark_to_string(ltt_eventtype_name(et
)));
976 g_error("No %s facility", g_quark_to_string(facility
));
979 g_array_free(th
->fac_index
, TRUE
);
980 g_array_free(th
->fac_list
, TRUE
);
981 th
->fac_index
= NULL
;
986 void lttv_trace_hook_destroy(LttvTraceHook
*th
)
988 g_array_free(th
->fac_index
, TRUE
);
989 g_array_free(th
->fac_list
, TRUE
);
993 LttvTracesetContextPosition
*lttv_traceset_context_position_new()
995 LttvTracesetContextPosition
*pos
= g_new(LttvTracesetContextPosition
,1);
996 pos
->ep
= g_array_sized_new(FALSE
, TRUE
, sizeof(LttEventPosition
*),
998 pos
->tfc
= g_array_sized_new(FALSE
, TRUE
, sizeof(LttvTracefileContext
*),
1000 pos
->timestamp
= ltt_time_infinite
;
1004 /* Save all positions, the ones not in the pqueue will have NULL
1006 void lttv_traceset_context_position_save(const LttvTracesetContext
*self
,
1007 LttvTracesetContextPosition
*pos
)
1010 guint num_traces
= lttv_traceset_number(self
->ts
);
1012 for(i
=0; i
<num_traces
;i
++) {
1013 GArray
* tracefiles
= self
->traces
[i
]->tracefiles
;
1015 guint num_tracefiles
= tracefiles
->len
;
1017 for(j
=0;j
<num_tracefiles
;j
++) {
1018 LttvTracefileContext
**tfc
= &g_array_index(tracefiles
,
1019 LttvTracefileContext
*, j
);
1021 LttEvent
*event
= ltt_tracefile_get_event((*tfc
)->tf
);
1022 LttEventPosition
*ep
;
1024 if(ltt_time_compare((*tfc
)->timestamp
, ltt_time_infinite
) != 0) {
1025 ep
= ltt_event_position_new();
1026 ltt_event_position(event
, ep
);
1027 if(ltt_time_compare((*tfc
)->timestamp
, pos
->timestamp
) < 0)
1028 pos
->timestamp
= (*tfc
)->timestamp
;
1032 g_array_append_val(pos
->tfc
, *tfc
);
1033 g_array_append_val(pos
->ep
, ep
);
1039 void lttv_traceset_context_position_destroy(LttvTracesetContextPosition
*pos
)
1042 LttEventPosition
**ep
;
1044 for(i
=0;i
<pos
->ep
->len
;i
++) {
1045 ep
= &g_array_index(pos
->ep
, LttEventPosition
*, i
);
1049 g_array_free(pos
->ep
, TRUE
);
1050 g_array_free(pos
->tfc
, TRUE
);
1054 void lttv_traceset_context_position_copy(LttvTracesetContextPosition
*dest
,
1055 const LttvTracesetContextPosition
*src
)
1058 LttEventPosition
**src_ep
, **dest_ep
;
1060 g_array_set_size(dest
->ep
, src
->ep
->len
);
1061 g_array_set_size(dest
->tfc
, src
->tfc
->len
);
1063 for(i
=0;i
<src
->ep
->len
;i
++) {
1064 src_ep
= &g_array_index(src
->ep
, LttEventPosition
*, i
);
1065 dest_ep
= &g_array_index(dest
->ep
, LttEventPosition
*, i
);
1066 if(*src_ep
!= NULL
) {
1067 *dest_ep
= ltt_event_position_new();
1068 ltt_event_position_copy(
1074 for(i
=0;i
<src
->tfc
->len
;i
++) {
1075 g_array_index(dest
->tfc
, LttvTracefileContext
*, i
) =
1076 g_array_index(src
->tfc
, LttvTracefileContext
*, i
);
1078 dest
->timestamp
= src
->timestamp
;
1081 gint
lttv_traceset_context_ctx_pos_compare(const LttvTracesetContext
*self
,
1082 const LttvTracesetContextPosition
*pos
)
1087 for(i
=0;i
<pos
->ep
->len
;i
++) {
1088 LttEventPosition
*ep
= g_array_index(pos
->ep
, LttEventPosition
*, i
);
1089 LttvTracefileContext
*tfc
=
1090 g_array_index(pos
->tfc
, LttvTracefileContext
*, i
);
1093 if(ltt_time_compare(tfc
->timestamp
, ltt_time_infinite
) != 0) {
1097 if(ltt_time_compare(tfc
->timestamp
, ltt_time_infinite
) == 0) {
1100 LttEvent
*event
= ltt_tracefile_get_event(tfc
->tf
);
1102 ret
= ltt_event_position_compare((LttEventPosition
*)event
,
1106 if(ret
!= 0) return ret
;
1113 gint
lttv_traceset_context_pos_pos_compare(
1114 const LttvTracesetContextPosition
*pos1
,
1115 const LttvTracesetContextPosition
*pos2
)
1120 for(i
=0;i
<pos1
->ep
->len
;i
++) {
1121 LttEventPosition
*ep1
= g_array_index(pos1
->ep
, LttEventPosition
*, i
);
1122 LttvTracefileContext
*tfc1
= g_array_index(pos1
->tfc
,
1123 LttvTracefileContext
*, i
);
1126 for(j
=0;j
<pos2
->ep
->len
;j
++) {
1127 LttEventPosition
*ep2
= g_array_index(pos2
->ep
, LttEventPosition
*, j
);
1128 LttvTracefileContext
*tfc2
= g_array_index(pos2
->tfc
,
1129 LttvTracefileContext
*, j
);
1132 ret
= ltt_event_position_compare(ep1
, ep2
);
1136 if(ret
!= 0) return ret
;
1140 for(j
=0;j
<pos2
->ep
->len
;j
++) {
1141 LttEventPosition
*ep2
= g_array_index(pos2
->ep
, LttEventPosition
*, j
);
1142 LttvTracefileContext
*tfc2
= g_array_index(pos2
->tfc
,
1143 LttvTracefileContext
*, j
);
1145 if(ep2
!= NULL
) ret
= 1;
1154 LttTime
lttv_traceset_context_position_get_time(
1155 const LttvTracesetContextPosition
*pos
)
1157 return pos
->timestamp
;
1161 LttvTracefileContext
*lttv_traceset_context_get_current_tfc(LttvTracesetContext
*self
)
1163 GTree
*pqueue
= self
->pqueue
;
1164 LttvTracefileContext
*tfc
= NULL
;
1166 g_tree_foreach(pqueue
, get_first
, &tfc
);