449cb9d7 |
1 | /* This file is part of the Linux Trace Toolkit viewer |
2 | * Copyright (C) 2003-2004 Xiangxiu Yang |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify |
5 | * it under the terms of the GNU General Public License Version 2 as |
6 | * published by the Free Software Foundation; |
7 | * |
8 | * This program is distributed in the hope that it will be useful, |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
11 | * GNU General Public License for more details. |
12 | * |
13 | * You should have received a copy of the GNU General Public License |
14 | * along with this program; if not, write to the Free Software |
15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
16 | * MA 02111-1307, USA. |
17 | */ |
18 | |
6cd62ccf |
19 | #include <stdio.h> |
20 | #include <asm/types.h> |
21 | #include <linux/byteorder/swab.h> |
a5dcde2f |
22 | |
6cd62ccf |
23 | #include "parser.h" |
a5dcde2f |
24 | #include <ltt/ltt.h> |
25 | #include "ltt-private.h" |
6cd62ccf |
26 | #include <ltt/event.h> |
a5dcde2f |
27 | #include <ltt/trace.h> |
6cd62ccf |
28 | |
908f42fa |
29 | /***************************************************************************** |
30 | *Function name |
31 | * ltt_event_refresh_fields : refresh fields of an event |
32 | *Input params |
33 | * offsetRoot : offset from the root |
34 | * offsetParent : offset from the parrent |
35 | * fld : field |
36 | * evD : event data |
37 | *Return value |
38 | * int : size of the field |
39 | ****************************************************************************/ |
40 | |
41 | int ltt_event_refresh_fields(int offsetRoot,int offsetParent, |
42 | LttField * fld, void *evD) |
43 | { |
44 | int size, size1, element_number, i, offset1, offset2; |
45 | LttType * type = fld->field_type; |
46 | |
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 |
53 | size = 0; |
54 | for(i=0;i<element_number;i++){ |
55 | size += ltt_event_refresh_fields(offsetRoot+size,size, |
56 | fld->child[0], evD+size); |
57 | } |
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 |
66 | size = 0; |
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); |
70 | } |
71 | size += size1; |
72 | } |
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){ |
78 | offset1 = offsetRoot; |
79 | offset2 = 0; |
80 | for(i=0;i<element_number;i++){ |
81 | size=ltt_event_refresh_fields(offset1,offset2,fld->child[i],evD+offset2); |
82 | offset1 += size; |
83 | offset2 += size; |
84 | } |
85 | size = offset2; |
86 | }else size = fld->field_size; |
87 | } |
88 | |
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; |
94 | |
95 | return size; |
96 | } |
97 | |
6cd62ccf |
98 | /***************************************************************************** |
99 | *Function name |
963b5f2d |
100 | * ltt_event_eventtype_id: get event type id |
101 | * (base id + position of the event) |
6cd62ccf |
102 | *Input params |
963b5f2d |
103 | * e : an instance of an event type |
6cd62ccf |
104 | *Return value |
963b5f2d |
105 | * unsigned : event type id |
6cd62ccf |
106 | ****************************************************************************/ |
107 | |
963b5f2d |
108 | unsigned ltt_event_eventtype_id(LttEvent *e) |
6cd62ccf |
109 | { |
110 | return (unsigned) e->event_id; |
111 | } |
112 | |
113 | /***************************************************************************** |
114 | *Function name |
115 | * ltt_event_facility : get the facility of the event |
116 | *Input params |
117 | * e : an instance of an event type |
118 | *Return value |
963b5f2d |
119 | * LttFacility * : the facility of the event |
6cd62ccf |
120 | ****************************************************************************/ |
121 | |
963b5f2d |
122 | LttFacility *ltt_event_facility(LttEvent *e) |
6cd62ccf |
123 | { |
963b5f2d |
124 | LttTrace * trace = e->tracefile->trace; |
125 | unsigned id = e->event_id; |
126 | return ltt_trace_facility_by_id(trace,id); |
6cd62ccf |
127 | } |
128 | |
129 | /***************************************************************************** |
130 | *Function name |
131 | * ltt_event_eventtype : get the event type of the event |
132 | *Input params |
133 | * e : an instance of an event type |
134 | *Return value |
963b5f2d |
135 | * LttEventType * : the event type of the event |
6cd62ccf |
136 | ****************************************************************************/ |
137 | |
963b5f2d |
138 | LttEventType *ltt_event_eventtype(LttEvent *e) |
6cd62ccf |
139 | { |
963b5f2d |
140 | LttFacility* facility = ltt_event_facility(e); |
141 | if(!facility) return NULL; |
142 | return facility->events[e->event_id - facility->base_id]; |
6cd62ccf |
143 | } |
144 | |
145 | /***************************************************************************** |
146 | *Function name |
963b5f2d |
147 | * ltt_event_field : get the root field of the event |
6cd62ccf |
148 | *Input params |
963b5f2d |
149 | * e : an instance of an event type |
6cd62ccf |
150 | *Return value |
963b5f2d |
151 | * LttField * : the root field of the event |
6cd62ccf |
152 | ****************************************************************************/ |
153 | |
963b5f2d |
154 | LttField *ltt_event_field(LttEvent *e) |
6cd62ccf |
155 | { |
908f42fa |
156 | LttField * field; |
963b5f2d |
157 | LttEventType * event_type = ltt_event_eventtype(e); |
158 | if(!event_type) return NULL; |
908f42fa |
159 | field = event_type->root_field; |
a2331fa0 |
160 | if(!field) return NULL; |
908f42fa |
161 | |
162 | //check if the field need refresh |
163 | if(e->which_block != event_type->latest_block || |
164 | e->which_event != event_type->latest_event){ |
165 | |
166 | event_type->latest_block = e->which_block; |
167 | event_type->latest_event = e->which_event; |
168 | |
169 | if(field->field_fixed == 1)return field; |
170 | |
171 | //refresh the field |
172 | ltt_event_refresh_fields(0, 0, field, e->data); |
173 | } |
174 | return field; |
6cd62ccf |
175 | } |
176 | |
177 | /***************************************************************************** |
178 | *Function name |
963b5f2d |
179 | * ltt_event_time : get the time of the event |
6cd62ccf |
180 | *Input params |
181 | * e : an instance of an event type |
182 | *Return value |
963b5f2d |
183 | * LttTime : the time of the event |
6cd62ccf |
184 | ****************************************************************************/ |
185 | |
963b5f2d |
186 | LttTime ltt_event_time(LttEvent *e) |
6cd62ccf |
187 | { |
963b5f2d |
188 | return e->event_time; |
6cd62ccf |
189 | } |
190 | |
191 | /***************************************************************************** |
192 | *Function name |
963b5f2d |
193 | * ltt_event_time : get the cycle count of the event |
6cd62ccf |
194 | *Input params |
195 | * e : an instance of an event type |
196 | *Return value |
963b5f2d |
197 | * LttCycleCount : the cycle count of the event |
6cd62ccf |
198 | ****************************************************************************/ |
199 | |
963b5f2d |
200 | LttCycleCount ltt_event_cycle_count(LttEvent *e) |
6cd62ccf |
201 | { |
963b5f2d |
202 | return e->event_cycle_count; |
6cd62ccf |
203 | } |
204 | |
80da81ad |
205 | /***************************************************************************** |
206 | *Function name |
207 | * ltt_event_position : get the event's position |
208 | *Input params |
209 | * e : an instance of an event type |
210 | * ep : a pointer to event's position structure |
211 | ****************************************************************************/ |
212 | |
213 | void ltt_event_position(LttEvent *e, LttEventPosition *ep) |
214 | { |
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; |
e4eced0f |
220 | ep->old_position = FALSE; |
80da81ad |
221 | ep->event_offset = e->data - e->tracefile->buffer - EVENT_HEADER_SIZE ; |
e4eced0f |
222 | ep->tf = e->tracefile; |
80da81ad |
223 | } |
224 | |
a5dcde2f |
225 | LttEventPosition * ltt_event_position_new() |
226 | { |
227 | return g_new(LttEventPosition, 1); |
228 | } |
229 | |
80da81ad |
230 | /***************************************************************************** |
231 | *Function name |
232 | * ltt_event_position_get : get the block number and index of the event |
233 | *Input params |
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 | ****************************************************************************/ |
238 | |
239 | void ltt_event_position_get(LttEventPosition *ep, |
e4eced0f |
240 | unsigned *block_number, unsigned *index_in_block, LttTracefile ** tf) |
80da81ad |
241 | { |
242 | *block_number = ep->block_num; |
243 | *index_in_block = ep->event_num; |
e4eced0f |
244 | *tf = ep->tf; |
80da81ad |
245 | } |
246 | |
247 | /***************************************************************************** |
248 | *Function name |
249 | * ltt_event_position_set : set the block number and index of the event |
250 | *Input params |
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 | ****************************************************************************/ |
255 | |
256 | void ltt_event_position_set(LttEventPosition *ep, |
257 | unsigned block_number, unsigned index_in_block) |
258 | { |
259 | ep->block_num = block_number; |
e4eced0f |
260 | ep->event_num = index_in_block; |
80da81ad |
261 | } |
262 | |
6cd62ccf |
263 | /***************************************************************************** |
264 | *Function name |
963b5f2d |
265 | * ltt_event_cpu_i: get the cpu id where the event happens |
6cd62ccf |
266 | *Input params |
267 | * e : an instance of an event type |
268 | *Return value |
963b5f2d |
269 | * unsigned : the cpu id |
6cd62ccf |
270 | ****************************************************************************/ |
271 | |
963b5f2d |
272 | unsigned ltt_event_cpu_id(LttEvent *e) |
dd691a2e |
273 | { |
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){ |
280 | c2++; |
281 | return (unsigned)atoi(c2); |
282 | }else if(c2 == NULL){ |
283 | c1++; |
284 | return (unsigned)atoi(c1); |
285 | }else{ |
286 | c3 = (c1 > c2) ? c1 : c2; |
287 | c3++; |
288 | return (unsigned)atoi(c3); |
289 | } |
6cd62ccf |
290 | } |
291 | |
292 | /***************************************************************************** |
293 | *Function name |
294 | * ltt_event_data : get the raw data for the event |
295 | *Input params |
296 | * e : an instance of an event type |
297 | *Return value |
298 | * void * : pointer to the raw data for the event |
299 | ****************************************************************************/ |
300 | |
963b5f2d |
301 | void *ltt_event_data(LttEvent *e) |
6cd62ccf |
302 | { |
303 | return e->data; |
304 | } |
305 | |
306 | /***************************************************************************** |
307 | *Function name |
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. |
312 | *Input params |
908f42fa |
313 | * e : an instance of an event type |
6cd62ccf |
314 | * f : a field of the instance |
315 | *Return value |
316 | * unsigned : the number of elements for an array/sequence field |
317 | ****************************************************************************/ |
318 | |
963b5f2d |
319 | unsigned ltt_event_field_element_number(LttEvent *e, LttField *f) |
6cd62ccf |
320 | { |
321 | if(f->field_type->type_class != LTT_ARRAY && |
322 | f->field_type->type_class != LTT_SEQUENCE) |
323 | return 0; |
908f42fa |
324 | |
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); |
6cd62ccf |
328 | } |
329 | |
330 | /***************************************************************************** |
331 | *Function name |
332 | * ltt_event_field_element_select |
333 | * : Set the currently selected element for a sequence or |
334 | * array field |
335 | *Input params |
908f42fa |
336 | * e : an instance of an event type |
6cd62ccf |
337 | * f : a field of the instance |
338 | * i : the ith element |
6cd62ccf |
339 | ****************************************************************************/ |
340 | |
963b5f2d |
341 | void ltt_event_field_element_select(LttEvent *e, LttField *f, unsigned i) |
6cd62ccf |
342 | { |
908f42fa |
343 | unsigned element_number; |
344 | LttField *fld; |
345 | int k, size; |
346 | void *evD; |
347 | |
348 | if(f->field_type->type_class != LTT_ARRAY && |
6cd62ccf |
349 | f->field_type->type_class != LTT_SEQUENCE) |
908f42fa |
350 | return ; |
351 | |
352 | element_number = ltt_event_field_element_number(e,f); |
89d4760c |
353 | if((element_number-1) < i || i < 0) return; |
908f42fa |
354 | |
355 | fld = f->child[0]; |
356 | |
357 | evD = e->data + f->offset_root; |
358 | size = 0; |
359 | for(k=0;k<i;k++){ |
360 | size += ltt_event_refresh_fields(f->offset_root+size,size, fld, evD+size); |
361 | } |
6cd62ccf |
362 | |
908f42fa |
363 | f->current_element = i - 1; |
6cd62ccf |
364 | } |
365 | |
366 | /***************************************************************************** |
367 | * These functions extract data from an event after architecture specific |
368 | * conversions |
369 | ****************************************************************************/ |
370 | |
963b5f2d |
371 | unsigned ltt_event_get_unsigned(LttEvent *e, LttField *f) |
6cd62ccf |
372 | { |
963b5f2d |
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; |
6cd62ccf |
376 | |
c687f6c8 |
377 | if(t != LTT_UINT && t != LTT_ENUM) |
6cd62ccf |
378 | g_error("The type of the field is not unsigned int\n"); |
379 | |
b7b36242 |
380 | if(f->field_size == 1){ |
cbd41522 |
381 | guint8 x = *(guint8 *)(e->data + f->offset_root); |
b7b36242 |
382 | return (unsigned int) x; |
383 | }else if(f->field_size == 2){ |
cbd41522 |
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); |
387 | else |
388 | return (unsigned int) (revFlag ? GUINT16_FROM_LE(x): x); |
b7b36242 |
389 | }else if(f->field_size == 4){ |
cbd41522 |
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); |
393 | else |
394 | return (unsigned int) (revFlag ? GUINT32_FROM_LE(x): x); |
b7b36242 |
395 | }else if(f->field_size == 8){ |
cbd41522 |
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); |
399 | else |
400 | return (unsigned int) (revFlag ? GUINT64_FROM_LE(x): x); |
6cd62ccf |
401 | } |
402 | } |
403 | |
963b5f2d |
404 | int ltt_event_get_int(LttEvent *e, LttField *f) |
6cd62ccf |
405 | { |
963b5f2d |
406 | int revFlag = e->tracefile->trace->my_arch_endian == |
407 | e->tracefile->trace->system_description->endian ? 0:1; |
6cd62ccf |
408 | |
409 | if(f->field_type->type_class != LTT_INT) |
410 | g_error("The type of the field is not int\n"); |
411 | |
b7b36242 |
412 | if(f->field_size == 1){ |
cbd41522 |
413 | gint8 x = *(gint8 *)(e->data + f->offset_root); |
b7b36242 |
414 | return (int) x; |
415 | }else if(f->field_size == 2){ |
cbd41522 |
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); |
419 | else |
420 | return (int) (revFlag ? GINT16_FROM_LE(x): x); |
b7b36242 |
421 | }else if(f->field_size == 4){ |
cbd41522 |
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); |
425 | else |
426 | return (int) (revFlag ? GINT32_FROM_LE(x): x); |
b7b36242 |
427 | }else if(f->field_size == 8){ |
cbd41522 |
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); |
431 | else |
432 | return (int) (revFlag ? GINT64_FROM_LE(x): x); |
6cd62ccf |
433 | } |
434 | } |
435 | |
963b5f2d |
436 | unsigned long ltt_event_get_long_unsigned(LttEvent *e, LttField *f) |
6cd62ccf |
437 | { |
963b5f2d |
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; |
6cd62ccf |
441 | |
c687f6c8 |
442 | if(t != LTT_UINT && t != LTT_ENUM) |
6cd62ccf |
443 | g_error("The type of the field is not unsigned long\n"); |
444 | |
b7b36242 |
445 | if(f->field_size == 1){ |
cbd41522 |
446 | guint8 x = *(guint8 *)(e->data + f->offset_root); |
b7b36242 |
447 | return (unsigned long) x; |
448 | }else if(f->field_size == 2){ |
cbd41522 |
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); |
452 | else |
453 | return (unsigned long) (revFlag ? GUINT16_FROM_LE(x): x); |
b7b36242 |
454 | }else if(f->field_size == 4){ |
cbd41522 |
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); |
458 | else |
459 | return (unsigned long) (revFlag ? GUINT32_FROM_LE(x): x); |
b7b36242 |
460 | }else if(f->field_size == 8){ |
cbd41522 |
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); |
464 | else |
465 | return (unsigned long) (revFlag ? GUINT64_FROM_LE(x): x); |
6cd62ccf |
466 | } |
467 | } |
468 | |
963b5f2d |
469 | long int ltt_event_get_long_int(LttEvent *e, LttField *f) |
6cd62ccf |
470 | { |
963b5f2d |
471 | int revFlag = e->tracefile->trace->my_arch_endian == |
472 | e->tracefile->trace->system_description->endian ? 0:1; |
6cd62ccf |
473 | |
474 | if( f->field_type->type_class != LTT_INT) |
475 | g_error("The type of the field is not long int\n"); |
476 | |
b7b36242 |
477 | if(f->field_size == 1){ |
cbd41522 |
478 | gint8 x = *(gint8 *)(e->data + f->offset_root); |
b7b36242 |
479 | return (long) x; |
480 | }else if(f->field_size == 2){ |
cbd41522 |
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); |
484 | else |
485 | return (long) (revFlag ? GINT16_FROM_LE(x): x); |
b7b36242 |
486 | }else if(f->field_size == 4){ |
cbd41522 |
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); |
490 | else |
491 | return (long) (revFlag ? GINT32_FROM_LE(x): x); |
b7b36242 |
492 | }else if(f->field_size == 8){ |
cbd41522 |
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); |
496 | else |
497 | return (long) (revFlag ? GINT64_FROM_LE(x): x); |
6cd62ccf |
498 | } |
499 | } |
500 | |
963b5f2d |
501 | float ltt_event_get_float(LttEvent *e, LttField *f) |
6cd62ccf |
502 | { |
963b5f2d |
503 | int revFlag = e->tracefile->trace->my_arch_endian == |
504 | e->tracefile->trace->system_description->endian ? 0:1; |
6cd62ccf |
505 | |
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"); |
509 | |
510 | if(revFlag == 0) return *(float *)(e->data + f->offset_root); |
511 | else{ |
cbd41522 |
512 | guint32 aInt; |
6cd62ccf |
513 | memcpy((void*)&aInt, e->data + f->offset_root, 4); |
514 | aInt = ___swab32(aInt); |
515 | return *((float*)&aInt); |
516 | } |
517 | } |
518 | |
963b5f2d |
519 | double ltt_event_get_double(LttEvent *e, LttField *f) |
6cd62ccf |
520 | { |
963b5f2d |
521 | int revFlag = e->tracefile->trace->my_arch_endian == |
522 | e->tracefile->trace->system_description->endian ? 0:1; |
6cd62ccf |
523 | |
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"); |
527 | |
528 | if(revFlag == 0) return *(double *)(e->data + f->offset_root); |
529 | else{ |
cbd41522 |
530 | guint64 aInt; |
6cd62ccf |
531 | memcpy((void*)&aInt, e->data + f->offset_root, 8); |
532 | aInt = ___swab64(aInt); |
533 | return *((double *)&aInt); |
534 | } |
535 | } |
536 | |
537 | /***************************************************************************** |
538 | * The string obtained is only valid until the next read from |
908f42fa |
539 | * the same tracefile. |
6cd62ccf |
540 | ****************************************************************************/ |
541 | |
963b5f2d |
542 | char *ltt_event_get_string(LttEvent *e, LttField *f) |
6cd62ccf |
543 | { |
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)); |
547 | } |