1 /* This file is part of the Linux Trace Toolkit viewer
2 * Copyright (C) 2003-2004 Xiangxiu Yang
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,
20 #include <asm/types.h>
21 #include <linux/byteorder/swab.h>
25 #include "ltt-private.h"
26 #include <ltt/event.h>
27 #include <ltt/trace.h>
29 /*****************************************************************************
31 * ltt_event_refresh_fields : refresh fields of an event
33 * offsetRoot : offset from the root
34 * offsetParent : offset from the parrent
38 * int : size of the field
39 ****************************************************************************/
41 int ltt_event_refresh_fields(int offsetRoot
,int offsetParent
,
42 LttField
* fld
, void *evD
)
44 int size
, size1
, element_number
, i
, offset1
, offset2
;
45 LttType
* type
= fld
->field_type
;
47 if(type
->type_class
!= LTT_STRUCT
&& type
->type_class
!= LTT_ARRAY
&&
48 type
->type_class
!= LTT_SEQUENCE
&& type
->type_class
!= LTT_STRING
){
49 size
= fld
->field_size
;
50 }else if(type
->type_class
== LTT_ARRAY
){
51 element_number
= (int) type
->element_number
;
52 if(fld
->field_fixed
== 0){// has string or sequence
54 for(i
=0;i
<element_number
;i
++){
55 size
+= ltt_event_refresh_fields(offsetRoot
+size
,size
,
56 fld
->child
[0], evD
+size
);
58 }else size
= fld
->field_size
;
59 }else if(type
->type_class
== LTT_SEQUENCE
){
60 size1
= fld
->sequ_number_size
;
61 element_number
= getIntNumber(size1
,evD
);
62 type
->element_number
= element_number
;
63 if(fld
->element_size
> 0){
64 size
= element_number
* fld
->element_size
;
65 }else{//sequence has string or sequence
67 for(i
=0;i
<element_number
;i
++){
68 size
+= ltt_event_refresh_fields(offsetRoot
+size
+size1
,size
+size1
,
69 fld
->child
[0], evD
+size
+size1
);
73 }else if(type
->type_class
== LTT_STRING
){
74 size
= strlen((char*)evD
) + 1; //include end : '\0'
75 }else if(type
->type_class
== LTT_STRUCT
){
76 element_number
= (int) type
->element_number
;
77 if(fld
->field_fixed
== 0){
80 for(i
=0;i
<element_number
;i
++){
81 size
=ltt_event_refresh_fields(offset1
,offset2
,fld
->child
[i
],evD
+offset2
);
86 }else size
= fld
->field_size
;
89 fld
->offset_root
= offsetRoot
;
90 fld
->offset_parent
= offsetParent
;
91 fld
->fixed_root
= (offsetRoot
==-1) ? 0 : 1;
92 fld
->fixed_parent
= (offsetParent
==-1) ? 0 : 1;
93 fld
->field_size
= size
;
98 /*****************************************************************************
100 * ltt_event_eventtype_id: get event type id
101 * (base id + position of the event)
103 * e : an instance of an event type
105 * unsigned : event type id
106 ****************************************************************************/
108 unsigned ltt_event_eventtype_id(LttEvent
*e
)
110 return (unsigned) e
->event_id
;
113 /*****************************************************************************
115 * ltt_event_facility : get the facility of the event
117 * e : an instance of an event type
119 * LttFacility * : the facility of the event
120 ****************************************************************************/
122 LttFacility
*ltt_event_facility(LttEvent
*e
)
124 LttTrace
* trace
= e
->tracefile
->trace
;
125 unsigned id
= e
->event_id
;
126 return ltt_trace_facility_by_id(trace
,id
);
129 /*****************************************************************************
131 * ltt_event_eventtype : get the event type of the event
133 * e : an instance of an event type
135 * LttEventType * : the event type of the event
136 ****************************************************************************/
138 LttEventType
*ltt_event_eventtype(LttEvent
*e
)
140 LttFacility
* facility
= ltt_event_facility(e
);
141 if(!facility
) return NULL
;
142 return facility
->events
[e
->event_id
- facility
->base_id
];
145 /*****************************************************************************
147 * ltt_event_field : get the root field of the event
149 * e : an instance of an event type
151 * LttField * : the root field of the event
152 ****************************************************************************/
154 LttField
*ltt_event_field(LttEvent
*e
)
157 LttEventType
* event_type
= ltt_event_eventtype(e
);
158 if(!event_type
) return NULL
;
159 field
= event_type
->root_field
;
160 if(!field
) return NULL
;
162 //check if the field need refresh
163 if(e
->which_block
!= event_type
->latest_block
||
164 e
->which_event
!= event_type
->latest_event
){
166 event_type
->latest_block
= e
->which_block
;
167 event_type
->latest_event
= e
->which_event
;
169 if(field
->field_fixed
== 1)return field
;
172 ltt_event_refresh_fields(0, 0, field
, e
->data
);
177 /*****************************************************************************
179 * ltt_event_time : get the time of the event
181 * e : an instance of an event type
183 * LttTime : the time of the event
184 ****************************************************************************/
186 LttTime
ltt_event_time(LttEvent
*e
)
188 return e
->event_time
;
191 /*****************************************************************************
193 * ltt_event_time : get the cycle count of the event
195 * e : an instance of an event type
197 * LttCycleCount : the cycle count of the event
198 ****************************************************************************/
200 LttCycleCount
ltt_event_cycle_count(LttEvent
*e
)
202 return e
->event_cycle_count
;
205 /*****************************************************************************
207 * ltt_event_position : get the event's position
209 * e : an instance of an event type
210 * ep : a pointer to event's position structure
211 ****************************************************************************/
213 void ltt_event_position(LttEvent
*e
, LttEventPosition
*ep
)
215 ep
->block_num
= e
->which_block
;
216 ep
->event_num
= e
->which_event
;
217 ep
->event_time
= e
->event_time
;
218 ep
->event_cycle_count
= e
->event_cycle_count
;
219 ep
->heart_beat_number
= e
->tracefile
->cur_heart_beat_number
;
220 ep
->old_position
= FALSE
;
221 ep
->event_offset
= e
->data
- e
->tracefile
->buffer
- EVENT_HEADER_SIZE
;
222 ep
->tf
= e
->tracefile
;
225 LttEventPosition
* ltt_event_position_new()
227 return g_new(LttEventPosition
, 1);
230 /*****************************************************************************
232 * ltt_event_position_get : get the block number and index of the event
234 * ep : a pointer to event's position structure
235 * block_number : the block number of the event
236 * index_in_block : the index of the event within the block
237 ****************************************************************************/
239 void ltt_event_position_get(LttEventPosition
*ep
,
240 unsigned *block_number
, unsigned *index_in_block
, LttTracefile
** tf
)
242 *block_number
= ep
->block_num
;
243 *index_in_block
= ep
->event_num
;
247 /*****************************************************************************
249 * ltt_event_position_set : set the block number and index of the event
251 * ep : a pointer to event's position structure
252 * block_number : the block number of the event
253 * index_in_block : the index of the event within the block
254 ****************************************************************************/
256 void ltt_event_position_set(LttEventPosition
*ep
,
257 unsigned block_number
, unsigned index_in_block
)
259 ep
->block_num
= block_number
;
260 ep
->event_num
= index_in_block
;
263 /*****************************************************************************
265 * ltt_event_cpu_i: get the cpu id where the event happens
267 * e : an instance of an event type
269 * unsigned : the cpu id
270 ****************************************************************************/
272 unsigned ltt_event_cpu_id(LttEvent
*e
)
274 char * c1
, * c2
, * c3
;
275 c1
= strrchr(e
->tracefile
->name
,'\\');
276 c2
= strrchr(e
->tracefile
->name
,'/');
277 if(c1
== NULL
&& c2
== NULL
){
278 return (unsigned)atoi(e
->tracefile
->name
);
279 }else if(c1
== NULL
){
281 return (unsigned)atoi(c2
);
282 }else if(c2
== NULL
){
284 return (unsigned)atoi(c1
);
286 c3
= (c1
> c2
) ? c1
: c2
;
288 return (unsigned)atoi(c3
);
292 /*****************************************************************************
294 * ltt_event_data : get the raw data for the event
296 * e : an instance of an event type
298 * void * : pointer to the raw data for the event
299 ****************************************************************************/
301 void *ltt_event_data(LttEvent
*e
)
306 /*****************************************************************************
308 * ltt_event_field_element_number
309 * : The number of elements in a sequence field is specific
310 * to each event. This function returns the number of
311 * elements for an array or sequence field in an event.
313 * e : an instance of an event type
314 * f : a field of the instance
316 * unsigned : the number of elements for an array/sequence field
317 ****************************************************************************/
319 unsigned ltt_event_field_element_number(LttEvent
*e
, LttField
*f
)
321 if(f
->field_type
->type_class
!= LTT_ARRAY
&&
322 f
->field_type
->type_class
!= LTT_SEQUENCE
)
325 if(f
->field_type
->type_class
== LTT_ARRAY
)
326 return f
->field_type
->element_number
;
327 return (unsigned) getIntNumber(f
->sequ_number_size
, e
+ f
->offset_root
);
330 /*****************************************************************************
332 * ltt_event_field_element_select
333 * : Set the currently selected element for a sequence or
336 * e : an instance of an event type
337 * f : a field of the instance
338 * i : the ith element
339 ****************************************************************************/
341 void ltt_event_field_element_select(LttEvent
*e
, LttField
*f
, unsigned i
)
343 unsigned element_number
;
348 if(f
->field_type
->type_class
!= LTT_ARRAY
&&
349 f
->field_type
->type_class
!= LTT_SEQUENCE
)
352 element_number
= ltt_event_field_element_number(e
,f
);
353 if((element_number
-1) < i
|| i
< 0) return;
357 evD
= e
->data
+ f
->offset_root
;
360 size
+= ltt_event_refresh_fields(f
->offset_root
+size
,size
, fld
, evD
+size
);
363 f
->current_element
= i
- 1;
366 /*****************************************************************************
367 * These functions extract data from an event after architecture specific
369 ****************************************************************************/
371 unsigned ltt_event_get_unsigned(LttEvent
*e
, LttField
*f
)
373 int revFlag
= e
->tracefile
->trace
->my_arch_endian
==
374 e
->tracefile
->trace
->system_description
->endian
? 0:1;
375 LttTypeEnum t
= f
->field_type
->type_class
;
377 if(t
!= LTT_UINT
&& t
!= LTT_ENUM
)
378 g_error("The type of the field is not unsigned int\n");
380 if(f
->field_size
== 1){
381 guint8 x
= *(guint8
*)(e
->data
+ f
->offset_root
);
382 return (unsigned int) x
;
383 }else if(f
->field_size
== 2){
384 guint16 x
= *(guint16
*)(e
->data
+ f
->offset_root
);
385 if(e
->tracefile
->trace
->my_arch_endian
== LTT_LITTLE_ENDIAN
)
386 return (unsigned int) (revFlag
? GUINT16_FROM_BE(x
): x
);
388 return (unsigned int) (revFlag
? GUINT16_FROM_LE(x
): x
);
389 }else if(f
->field_size
== 4){
390 guint32 x
= *(guint32
*)(e
->data
+ f
->offset_root
);
391 if(e
->tracefile
->trace
->my_arch_endian
== LTT_LITTLE_ENDIAN
)
392 return (unsigned int) (revFlag
? GUINT32_FROM_BE(x
): x
);
394 return (unsigned int) (revFlag
? GUINT32_FROM_LE(x
): x
);
395 }else if(f
->field_size
== 8){
396 guint64 x
= *(guint64
*)(e
->data
+ f
->offset_root
);
397 if(e
->tracefile
->trace
->my_arch_endian
== LTT_LITTLE_ENDIAN
)
398 return (unsigned int) (revFlag
? GUINT64_FROM_BE(x
): x
);
400 return (unsigned int) (revFlag
? GUINT64_FROM_LE(x
): x
);
404 int ltt_event_get_int(LttEvent
*e
, LttField
*f
)
406 int revFlag
= e
->tracefile
->trace
->my_arch_endian
==
407 e
->tracefile
->trace
->system_description
->endian
? 0:1;
409 if(f
->field_type
->type_class
!= LTT_INT
)
410 g_error("The type of the field is not int\n");
412 if(f
->field_size
== 1){
413 gint8 x
= *(gint8
*)(e
->data
+ f
->offset_root
);
415 }else if(f
->field_size
== 2){
416 gint16 x
= *(gint16
*)(e
->data
+ f
->offset_root
);
417 if(e
->tracefile
->trace
->my_arch_endian
== LTT_LITTLE_ENDIAN
)
418 return (int) (revFlag
? GINT16_FROM_BE(x
): x
);
420 return (int) (revFlag
? GINT16_FROM_LE(x
): x
);
421 }else if(f
->field_size
== 4){
422 gint32 x
= *(gint32
*)(e
->data
+ f
->offset_root
);
423 if(e
->tracefile
->trace
->my_arch_endian
== LTT_LITTLE_ENDIAN
)
424 return (int) (revFlag
? GINT32_FROM_BE(x
): x
);
426 return (int) (revFlag
? GINT32_FROM_LE(x
): x
);
427 }else if(f
->field_size
== 8){
428 gint64 x
= *(gint64
*)(e
->data
+ f
->offset_root
);
429 if(e
->tracefile
->trace
->my_arch_endian
== LTT_LITTLE_ENDIAN
)
430 return (int) (revFlag
? GINT64_FROM_BE(x
): x
);
432 return (int) (revFlag
? GINT64_FROM_LE(x
): x
);
436 unsigned long ltt_event_get_long_unsigned(LttEvent
*e
, LttField
*f
)
438 int revFlag
= e
->tracefile
->trace
->my_arch_endian
==
439 e
->tracefile
->trace
->system_description
->endian
? 0:1;
440 LttTypeEnum t
= f
->field_type
->type_class
;
442 if(t
!= LTT_UINT
&& t
!= LTT_ENUM
)
443 g_error("The type of the field is not unsigned long\n");
445 if(f
->field_size
== 1){
446 guint8 x
= *(guint8
*)(e
->data
+ f
->offset_root
);
447 return (unsigned long) x
;
448 }else if(f
->field_size
== 2){
449 guint16 x
= *(guint16
*)(e
->data
+ f
->offset_root
);
450 if(e
->tracefile
->trace
->my_arch_endian
== LTT_LITTLE_ENDIAN
)
451 return (unsigned long) (revFlag
? GUINT16_FROM_BE(x
): x
);
453 return (unsigned long) (revFlag
? GUINT16_FROM_LE(x
): x
);
454 }else if(f
->field_size
== 4){
455 guint32 x
= *(guint32
*)(e
->data
+ f
->offset_root
);
456 if(e
->tracefile
->trace
->my_arch_endian
== LTT_LITTLE_ENDIAN
)
457 return (unsigned long) (revFlag
? GUINT32_FROM_BE(x
): x
);
459 return (unsigned long) (revFlag
? GUINT32_FROM_LE(x
): x
);
460 }else if(f
->field_size
== 8){
461 guint64 x
= *(guint64
*)(e
->data
+ f
->offset_root
);
462 if(e
->tracefile
->trace
->my_arch_endian
== LTT_LITTLE_ENDIAN
)
463 return (unsigned long) (revFlag
? GUINT64_FROM_BE(x
): x
);
465 return (unsigned long) (revFlag
? GUINT64_FROM_LE(x
): x
);
469 long int ltt_event_get_long_int(LttEvent
*e
, LttField
*f
)
471 int revFlag
= e
->tracefile
->trace
->my_arch_endian
==
472 e
->tracefile
->trace
->system_description
->endian
? 0:1;
474 if( f
->field_type
->type_class
!= LTT_INT
)
475 g_error("The type of the field is not long int\n");
477 if(f
->field_size
== 1){
478 gint8 x
= *(gint8
*)(e
->data
+ f
->offset_root
);
480 }else if(f
->field_size
== 2){
481 gint16 x
= *(gint16
*)(e
->data
+ f
->offset_root
);
482 if(e
->tracefile
->trace
->my_arch_endian
== LTT_LITTLE_ENDIAN
)
483 return (long) (revFlag
? GINT16_FROM_BE(x
): x
);
485 return (long) (revFlag
? GINT16_FROM_LE(x
): x
);
486 }else if(f
->field_size
== 4){
487 gint32 x
= *(gint32
*)(e
->data
+ f
->offset_root
);
488 if(e
->tracefile
->trace
->my_arch_endian
== LTT_LITTLE_ENDIAN
)
489 return (long) (revFlag
? GINT32_FROM_BE(x
): x
);
491 return (long) (revFlag
? GINT32_FROM_LE(x
): x
);
492 }else if(f
->field_size
== 8){
493 gint64 x
= *(gint64
*)(e
->data
+ f
->offset_root
);
494 if(e
->tracefile
->trace
->my_arch_endian
== LTT_LITTLE_ENDIAN
)
495 return (long) (revFlag
? GINT64_FROM_BE(x
): x
);
497 return (long) (revFlag
? GINT64_FROM_LE(x
): x
);
501 float ltt_event_get_float(LttEvent
*e
, LttField
*f
)
503 int revFlag
= e
->tracefile
->trace
->my_arch_endian
==
504 e
->tracefile
->trace
->system_description
->endian
? 0:1;
506 if(f
->field_type
->type_class
!= LTT_FLOAT
||
507 (f
->field_type
->type_class
== LTT_FLOAT
&& f
->field_size
!= 4))
508 g_error("The type of the field is not float\n");
510 if(revFlag
== 0) return *(float *)(e
->data
+ f
->offset_root
);
513 memcpy((void*)&aInt
, e
->data
+ f
->offset_root
, 4);
514 aInt
= ___swab32(aInt
);
515 return *((float*)&aInt
);
519 double ltt_event_get_double(LttEvent
*e
, LttField
*f
)
521 int revFlag
= e
->tracefile
->trace
->my_arch_endian
==
522 e
->tracefile
->trace
->system_description
->endian
? 0:1;
524 if(f
->field_type
->type_class
!= LTT_FLOAT
||
525 (f
->field_type
->type_class
== LTT_FLOAT
&& f
->field_size
!= 8))
526 g_error("The type of the field is not double\n");
528 if(revFlag
== 0) return *(double *)(e
->data
+ f
->offset_root
);
531 memcpy((void*)&aInt
, e
->data
+ f
->offset_root
, 8);
532 aInt
= ___swab64(aInt
);
533 return *((double *)&aInt
);
537 /*****************************************************************************
538 * The string obtained is only valid until the next read from
539 * the same tracefile.
540 ****************************************************************************/
542 char *ltt_event_get_string(LttEvent
*e
, LttField
*f
)
544 if(f
->field_type
->type_class
!= LTT_STRING
)
545 g_error("The field contains no string\n");
546 return (char*)g_strdup((char*)(e
->data
+ f
->offset_root
));
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