3 #include <linux/byteorder/swab.h>
4 #include <ltt/LTTTypes.h>
8 /*****************************************************************************
10 * ltt_event_refresh_fields : refresh fields of an event
12 * offsetRoot : offset from the root
13 * offsetParent : offset from the parrent
17 * int : size of the field
18 ****************************************************************************/
20 int ltt_event_refresh_fields(int offsetRoot
,int offsetParent
,
21 LttField
* fld
, void *evD
)
23 int size
, size1
, element_number
, i
, offset1
, offset2
;
24 LttType
* type
= fld
->field_type
;
26 if(type
->type_class
!= LTT_STRUCT
&& type
->type_class
!= LTT_ARRAY
&&
27 type
->type_class
!= LTT_SEQUENCE
&& type
->type_class
!= LTT_STRING
){
28 size
= fld
->field_size
;
29 }else if(type
->type_class
== LTT_ARRAY
){
30 element_number
= (int) type
->element_number
;
31 if(fld
->field_fixed
== 0){// has string or sequence
33 for(i
=0;i
<element_number
;i
++){
34 size
+= ltt_event_refresh_fields(offsetRoot
+size
,size
,
35 fld
->child
[0], evD
+size
);
37 }else size
= fld
->field_size
;
38 }else if(type
->type_class
== LTT_SEQUENCE
){
39 size1
= fld
->sequ_number_size
;
40 element_number
= getIntNumber(size1
,evD
);
41 type
->element_number
= element_number
;
42 if(fld
->element_size
> 0){
43 size
= element_number
* fld
->element_size
;
44 }else{//sequence has string or sequence
46 for(i
=0;i
<element_number
;i
++){
47 size
+= ltt_event_refresh_fields(offsetRoot
+size
+size1
,size
+size1
,
48 fld
->child
[0], evD
+size
+size1
);
52 }else if(type
->type_class
== LTT_STRING
){
53 size
= strlen((char*)evD
) + 1; //include end : '\0'
54 }else if(type
->type_class
== LTT_STRUCT
){
55 element_number
= (int) type
->element_number
;
56 if(fld
->field_fixed
== 0){
59 for(i
=0;i
<element_number
;i
++){
60 size
=ltt_event_refresh_fields(offset1
,offset2
,fld
->child
[i
],evD
+offset2
);
65 }else size
= fld
->field_size
;
68 fld
->offset_root
= offsetRoot
;
69 fld
->offset_parent
= offsetParent
;
70 fld
->fixed_root
= (offsetRoot
==-1) ? 0 : 1;
71 fld
->fixed_parent
= (offsetParent
==-1) ? 0 : 1;
72 fld
->field_size
= size
;
77 /*****************************************************************************
79 * ltt_event_eventtype_id: get event type id
80 * (base id + position of the event)
82 * e : an instance of an event type
84 * unsigned : event type id
85 ****************************************************************************/
87 unsigned ltt_event_eventtype_id(LttEvent
*e
)
89 return (unsigned) e
->event_id
;
92 /*****************************************************************************
94 * ltt_event_facility : get the facility of the event
96 * e : an instance of an event type
98 * LttFacility * : the facility of the event
99 ****************************************************************************/
101 LttFacility
*ltt_event_facility(LttEvent
*e
)
103 LttTrace
* trace
= e
->tracefile
->trace
;
104 unsigned id
= e
->event_id
;
105 return ltt_trace_facility_by_id(trace
,id
);
108 /*****************************************************************************
110 * ltt_event_eventtype : get the event type of the event
112 * e : an instance of an event type
114 * LttEventType * : the event type of the event
115 ****************************************************************************/
117 LttEventType
*ltt_event_eventtype(LttEvent
*e
)
119 LttFacility
* facility
= ltt_event_facility(e
);
120 if(!facility
) return NULL
;
121 return facility
->events
[e
->event_id
- facility
->base_id
];
124 /*****************************************************************************
126 * ltt_event_field : get the root field of the event
128 * e : an instance of an event type
130 * LttField * : the root field of the event
131 ****************************************************************************/
133 LttField
*ltt_event_field(LttEvent
*e
)
136 LttEventType
* event_type
= ltt_event_eventtype(e
);
137 if(!event_type
) return NULL
;
138 field
= event_type
->root_field
;
140 //check if the field need refresh
141 if(e
->which_block
!= event_type
->latest_block
||
142 e
->which_event
!= event_type
->latest_event
){
144 event_type
->latest_block
= e
->which_block
;
145 event_type
->latest_event
= e
->which_event
;
147 if(field
->field_fixed
== 1)return field
;
150 ltt_event_refresh_fields(0, 0, field
, e
->data
);
155 /*****************************************************************************
157 * ltt_event_time : get the time of the event
159 * e : an instance of an event type
161 * LttTime : the time of the event
162 ****************************************************************************/
164 LttTime
ltt_event_time(LttEvent
*e
)
166 return e
->event_time
;
169 /*****************************************************************************
171 * ltt_event_time : get the cycle count of the event
173 * e : an instance of an event type
175 * LttCycleCount : the cycle count of the event
176 ****************************************************************************/
178 LttCycleCount
ltt_event_cycle_count(LttEvent
*e
)
180 return e
->event_cycle_count
;
183 /*****************************************************************************
185 * ltt_event_cpu_i: get the cpu id where the event happens
187 * e : an instance of an event type
189 * unsigned : the cpu id
190 ****************************************************************************/
192 unsigned ltt_event_cpu_id(LttEvent
*e
)
194 return (unsigned)atoi(e
->tracefile
->name
);
197 /*****************************************************************************
199 * ltt_event_data : get the raw data for the event
201 * e : an instance of an event type
203 * void * : pointer to the raw data for the event
204 ****************************************************************************/
206 void *ltt_event_data(LttEvent
*e
)
211 /*****************************************************************************
213 * ltt_event_field_element_number
214 * : The number of elements in a sequence field is specific
215 * to each event. This function returns the number of
216 * elements for an array or sequence field in an event.
218 * e : an instance of an event type
219 * f : a field of the instance
221 * unsigned : the number of elements for an array/sequence field
222 ****************************************************************************/
224 unsigned ltt_event_field_element_number(LttEvent
*e
, LttField
*f
)
226 if(f
->field_type
->type_class
!= LTT_ARRAY
&&
227 f
->field_type
->type_class
!= LTT_SEQUENCE
)
230 if(f
->field_type
->type_class
== LTT_ARRAY
)
231 return f
->field_type
->element_number
;
232 return (unsigned) getIntNumber(f
->sequ_number_size
, e
+ f
->offset_root
);
235 /*****************************************************************************
237 * ltt_event_field_element_select
238 * : Set the currently selected element for a sequence or
241 * e : an instance of an event type
242 * f : a field of the instance
243 * i : the ith element
244 ****************************************************************************/
246 void ltt_event_field_element_select(LttEvent
*e
, LttField
*f
, unsigned i
)
248 unsigned element_number
;
253 if(f
->field_type
->type_class
!= LTT_ARRAY
&&
254 f
->field_type
->type_class
!= LTT_SEQUENCE
)
257 element_number
= ltt_event_field_element_number(e
,f
);
258 if((element_number
-1) < i
|| i
< 0) return;
262 evD
= e
->data
+ f
->offset_root
;
265 size
+= ltt_event_refresh_fields(f
->offset_root
+size
,size
, fld
, evD
+size
);
268 f
->current_element
= i
- 1;
271 /*****************************************************************************
272 * These functions extract data from an event after architecture specific
274 ****************************************************************************/
276 unsigned ltt_event_get_unsigned(LttEvent
*e
, LttField
*f
)
278 int revFlag
= e
->tracefile
->trace
->my_arch_endian
==
279 e
->tracefile
->trace
->system_description
->endian
? 0:1;
280 LttTypeEnum t
= f
->field_type
->type_class
;
282 if(t
!= LTT_UINT
&& t
!= LTT_ENUM
)
283 g_error("The type of the field is not unsigned int\n");
285 if(f
->field_size
== 1){
286 uint8_t x
= *(uint8_t*)(e
->data
+ f
->offset_root
);
287 return (unsigned int) x
;
288 }else if(f
->field_size
== 2){
289 uint16_t x
= *(uint16_t*)(e
->data
+ f
->offset_root
);
290 return (unsigned int) (revFlag
? BREV16(x
): x
);
291 }else if(f
->field_size
== 4){
292 uint32_t x
= *(uint32_t*)(e
->data
+ f
->offset_root
);
293 return (unsigned int) (revFlag
? BREV32(x
): x
);
294 }else if(f
->field_size
== 8){
295 uint64_t x
= *(uint64_t*)(e
->data
+ f
->offset_root
);
296 return (unsigned int) (revFlag
? BREV64(x
): x
);
300 int ltt_event_get_int(LttEvent
*e
, LttField
*f
)
302 int revFlag
= e
->tracefile
->trace
->my_arch_endian
==
303 e
->tracefile
->trace
->system_description
->endian
? 0:1;
305 if(f
->field_type
->type_class
!= LTT_INT
)
306 g_error("The type of the field is not int\n");
308 if(f
->field_size
== 1){
309 int8_t x
= *(int8_t*)(e
->data
+ f
->offset_root
);
311 }else if(f
->field_size
== 2){
312 int16_t x
= *(int16_t*)(e
->data
+ f
->offset_root
);
313 return (int) (revFlag
? BREV16(x
): x
);
314 }else if(f
->field_size
== 4){
315 int32_t x
= *(int32_t*)(e
->data
+ f
->offset_root
);
316 return (int) (revFlag
? BREV32(x
): x
);
317 }else if(f
->field_size
== 8){
318 int64_t x
= *(int64_t*)(e
->data
+ f
->offset_root
);
319 return (int) (revFlag
? BREV64(x
): x
);
323 unsigned long ltt_event_get_long_unsigned(LttEvent
*e
, LttField
*f
)
325 int revFlag
= e
->tracefile
->trace
->my_arch_endian
==
326 e
->tracefile
->trace
->system_description
->endian
? 0:1;
327 LttTypeEnum t
= f
->field_type
->type_class
;
329 if(t
!= LTT_UINT
&& t
!= LTT_ENUM
)
330 g_error("The type of the field is not unsigned long\n");
332 if(f
->field_size
== 1){
333 uint8_t x
= *(uint8_t*)(e
->data
+ f
->offset_root
);
334 return (unsigned long) x
;
335 }else if(f
->field_size
== 2){
336 uint16_t x
= *(uint16_t*)(e
->data
+ f
->offset_root
);
337 return (unsigned long) (revFlag
? BREV16(x
): x
);
338 }else if(f
->field_size
== 4){
339 uint32_t x
= *(uint32_t*)(e
->data
+ f
->offset_root
);
340 return (unsigned long) (revFlag
? BREV32(x
): x
);
341 }else if(f
->field_size
== 8){
342 uint64_t x
= *(uint64_t*)(e
->data
+ f
->offset_root
);
343 return (unsigned long) (revFlag
? BREV64(x
): x
);
347 long int ltt_event_get_long_int(LttEvent
*e
, LttField
*f
)
349 int revFlag
= e
->tracefile
->trace
->my_arch_endian
==
350 e
->tracefile
->trace
->system_description
->endian
? 0:1;
352 if( f
->field_type
->type_class
!= LTT_INT
)
353 g_error("The type of the field is not long int\n");
355 if(f
->field_size
== 1){
356 int8_t x
= *(int8_t*)(e
->data
+ f
->offset_root
);
358 }else if(f
->field_size
== 2){
359 int16_t x
= *(int16_t*)(e
->data
+ f
->offset_root
);
360 return (long) (revFlag
? BREV16(x
): x
);
361 }else if(f
->field_size
== 4){
362 int32_t x
= *(int32_t*)(e
->data
+ f
->offset_root
);
363 return (long) (revFlag
? BREV32(x
): x
);
364 }else if(f
->field_size
== 8){
365 int64_t x
= *(int64_t*)(e
->data
+ f
->offset_root
);
366 return (long) (revFlag
? BREV64(x
): x
);
370 float ltt_event_get_float(LttEvent
*e
, LttField
*f
)
372 int revFlag
= e
->tracefile
->trace
->my_arch_endian
==
373 e
->tracefile
->trace
->system_description
->endian
? 0:1;
375 if(f
->field_type
->type_class
!= LTT_FLOAT
||
376 (f
->field_type
->type_class
== LTT_FLOAT
&& f
->field_size
!= 4))
377 g_error("The type of the field is not float\n");
379 if(revFlag
== 0) return *(float *)(e
->data
+ f
->offset_root
);
382 memcpy((void*)&aInt
, e
->data
+ f
->offset_root
, 4);
383 aInt
= ___swab32(aInt
);
384 return *((float*)&aInt
);
388 double ltt_event_get_double(LttEvent
*e
, LttField
*f
)
390 int revFlag
= e
->tracefile
->trace
->my_arch_endian
==
391 e
->tracefile
->trace
->system_description
->endian
? 0:1;
393 if(f
->field_type
->type_class
!= LTT_FLOAT
||
394 (f
->field_type
->type_class
== LTT_FLOAT
&& f
->field_size
!= 8))
395 g_error("The type of the field is not double\n");
397 if(revFlag
== 0) return *(double *)(e
->data
+ f
->offset_root
);
400 memcpy((void*)&aInt
, e
->data
+ f
->offset_root
, 8);
401 aInt
= ___swab64(aInt
);
402 return *((double *)&aInt
);
406 /*****************************************************************************
407 * The string obtained is only valid until the next read from
408 * the same tracefile.
409 ****************************************************************************/
411 char *ltt_event_get_string(LttEvent
*e
, LttField
*f
)
413 if(f
->field_type
->type_class
!= LTT_STRING
)
414 g_error("The field contains no string\n");
415 return (char*)g_strdup((char*)(e
->data
+ f
->offset_root
));
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