6cd62ccf |
1 | #include <stdio.h> |
2 | #include <fcntl.h> |
3 | #include <sys/stat.h> |
4 | #include <sys/types.h> |
963b5f2d |
5 | #include <dirent.h> |
6cd62ccf |
6 | #include <linux/errno.h> |
7 | |
6cd62ccf |
8 | #include "parser.h" |
963b5f2d |
9 | #include <ltt/trace.h> |
6cd62ccf |
10 | |
963b5f2d |
11 | #define DIR_NAME_SIZE 256 |
6cd62ccf |
12 | |
13 | /* set the offset of the fields belonging to the event, |
14 | need the information of the archecture */ |
40331ba8 |
15 | void setFieldsOffset(LttTracefile *tf,LttEventType *evT,void *evD,LttTrace *t); |
6cd62ccf |
16 | |
17 | /* get the size of the field type according to the archtecture's |
18 | size and endian type(info of the archecture) */ |
40331ba8 |
19 | int getFieldtypeSize(LttTracefile * tf, LttEventType * evT, int offsetRoot, |
20 | int offsetParent, LttField *fld, void *evD, LttTrace* t); |
6cd62ccf |
21 | |
22 | /* read a fixed size or a block information from the file (fd) */ |
23 | int readFile(int fd, void * buf, size_t size, char * mesg); |
963b5f2d |
24 | int readBlock(LttTracefile * tf, int whichBlock); |
6cd62ccf |
25 | |
26 | /* calculate cycles per nsec for current block */ |
963b5f2d |
27 | void getCyclePerNsec(LttTracefile * t); |
6cd62ccf |
28 | |
29 | /* reinitialize the info of the block which is already in the buffer */ |
963b5f2d |
30 | void updateTracefile(LttTracefile * tf); |
6cd62ccf |
31 | |
32 | /* go to the next event */ |
963b5f2d |
33 | int skipEvent(LttTracefile * t); |
6cd62ccf |
34 | |
6cd62ccf |
35 | |
36 | /***************************************************************************** |
37 | *Function name |
963b5f2d |
38 | * ltt_tracefile_open : open a trace file, construct a LttTracefile |
6cd62ccf |
39 | *Input params |
963b5f2d |
40 | * t : the trace containing the tracefile |
41 | * fileName : path name of the trace file |
6cd62ccf |
42 | *Return value |
963b5f2d |
43 | * : a pointer to a tracefile |
6cd62ccf |
44 | ****************************************************************************/ |
45 | |
963b5f2d |
46 | LttTracefile* ltt_tracefile_open(LttTrace * t, char * fileName) |
6cd62ccf |
47 | { |
963b5f2d |
48 | LttTracefile * tf; |
49 | struct stat lTDFStat; /* Trace data file status */ |
50 | BlockStart a_block_start; |
6cd62ccf |
51 | |
963b5f2d |
52 | tf = g_new(LttTracefile, 1); |
6cd62ccf |
53 | |
54 | //open the file |
963b5f2d |
55 | tf->name = g_strdup(fileName); |
56 | tf->trace = t; |
6cd62ccf |
57 | tf->fd = open(fileName, O_RDONLY, 0); |
58 | if(tf->fd < 0){ |
59 | g_error("Unable to open input data file %s\n", fileName); |
60 | } |
61 | |
62 | // Get the file's status |
63 | if(fstat(tf->fd, &lTDFStat) < 0){ |
64 | g_error("Unable to get the status of the input data file %s\n", fileName); |
65 | } |
66 | |
67 | // Is the file large enough to contain a trace |
963b5f2d |
68 | if(lTDFStat.st_size < sizeof(BlockStart) + EVENT_HEADER_SIZE){ |
8710c6c7 |
69 | g_print("The input data file %s does not contain a trace\n", fileName); |
663bd9ff |
70 | g_free(tf->name); |
71 | close(tf->fd); |
72 | g_free(tf); |
8710c6c7 |
73 | return NULL; |
6cd62ccf |
74 | } |
75 | |
76 | //store the size of the file |
77 | tf->file_size = lTDFStat.st_size; |
963b5f2d |
78 | tf->block_size = t->system_description->ltt_block_size; |
79 | tf->block_number = tf->file_size / tf->block_size; |
80 | tf->which_block = 0; |
6cd62ccf |
81 | |
82 | //allocate memory to contain the info of a block |
963b5f2d |
83 | tf->buffer = (void *) g_new(char, t->system_description->ltt_block_size); |
6cd62ccf |
84 | |
963b5f2d |
85 | //read the first block |
86 | if(readBlock(tf,1)) exit(1); |
6cd62ccf |
87 | |
88 | return tf; |
89 | } |
90 | |
6cd62ccf |
91 | |
92 | /***************************************************************************** |
963b5f2d |
93 | *Open control and per cpu tracefiles |
6cd62ccf |
94 | ****************************************************************************/ |
95 | |
963b5f2d |
96 | void ltt_tracefile_open_cpu(LttTrace *t, char * tracefile_name) |
6cd62ccf |
97 | { |
963b5f2d |
98 | LttTracefile * tf; |
99 | tf = ltt_tracefile_open(t,tracefile_name); |
4a6c8e36 |
100 | if(!tf) return; |
963b5f2d |
101 | t->per_cpu_tracefile_number++; |
102 | g_ptr_array_add(t->per_cpu_tracefiles, tf); |
6cd62ccf |
103 | } |
104 | |
963b5f2d |
105 | void ltt_tracefile_open_control(LttTrace *t, char * control_name) |
6cd62ccf |
106 | { |
963b5f2d |
107 | LttTracefile * tf; |
108 | LttEvent * ev; |
109 | LttFacility * f; |
cbd41522 |
110 | guint16 evId; |
963b5f2d |
111 | void * pos; |
112 | FacilityLoad fLoad; |
113 | int i; |
114 | |
115 | tf = ltt_tracefile_open(t,control_name); |
8710c6c7 |
116 | if(!tf) return; |
963b5f2d |
117 | t->control_tracefile_number++; |
118 | g_ptr_array_add(t->control_tracefiles,tf); |
119 | |
120 | //parse facilities tracefile to get base_id |
542ceddd |
121 | if(strcmp(&control_name[strlen(control_name)-10],"facilities") ==0){ |
963b5f2d |
122 | while(1){ |
40331ba8 |
123 | ev = ltt_tracefile_read(tf); |
124 | if(!ev)return; // end of file |
125 | |
126 | if(ev->event_id == TRACE_FACILITY_LOAD){ |
127 | pos = ev->data; |
963b5f2d |
128 | fLoad.name = (char*)pos; |
47a166fc |
129 | fLoad.checksum = *(LttChecksum*)(pos + strlen(fLoad.name)); |
cbd41522 |
130 | fLoad.base_code = *(guint32 *)(pos + strlen(fLoad.name) + sizeof(LttChecksum)); |
963b5f2d |
131 | |
132 | for(i=0;i<t->facility_number;i++){ |
133 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
134 | if(strcmp(f->name,fLoad.name)==0 && fLoad.checksum==f->checksum){ |
135 | f->base_id = fLoad.base_code; |
136 | break; |
137 | } |
138 | } |
139 | if(i==t->facility_number) |
140 | g_error("Facility: %s, checksum: %d is not founded\n", |
141 | fLoad.name,fLoad.checksum); |
40331ba8 |
142 | }else if(ev->event_id == TRACE_BLOCK_START){ |
143 | continue; |
144 | }else if(ev->event_id == TRACE_BLOCK_END){ |
145 | break; |
963b5f2d |
146 | }else g_error("Not valid facilities trace file\n"); |
147 | } |
148 | } |
6cd62ccf |
149 | } |
150 | |
151 | /***************************************************************************** |
152 | *Function name |
963b5f2d |
153 | * ltt_tracefile_close: close a trace file, |
6cd62ccf |
154 | *Input params |
963b5f2d |
155 | * t : tracefile which will be closed |
6cd62ccf |
156 | ****************************************************************************/ |
157 | |
963b5f2d |
158 | void ltt_tracefile_close(LttTracefile *t) |
6cd62ccf |
159 | { |
963b5f2d |
160 | g_free(t->name); |
161 | g_free(t->buffer); |
663bd9ff |
162 | close(t->fd); |
963b5f2d |
163 | g_free(t); |
164 | } |
6cd62ccf |
165 | |
6cd62ccf |
166 | |
963b5f2d |
167 | /***************************************************************************** |
168 | *Get system information |
169 | ****************************************************************************/ |
170 | void getSystemInfo(LttSystemDescription* des, char * pathname) |
171 | { |
172 | FILE * fp; |
173 | int i; |
174 | int entry_number = 15; |
175 | char buf[DIR_NAME_SIZE]; |
176 | char description[4*DIR_NAME_SIZE]; |
177 | char * ptr; |
178 | |
179 | fp = fopen(pathname,"r"); |
180 | if(!fp){ |
181 | g_error("Can not open file : %s\n", pathname); |
6cd62ccf |
182 | } |
963b5f2d |
183 | |
184 | while(fgets(buf,DIR_NAME_SIZE, fp)!= NULL){ |
185 | ptr = buf; |
186 | while(isspace(*ptr)) ptr++; |
187 | if(strlen(ptr) == 0) continue; |
188 | break; |
6cd62ccf |
189 | } |
190 | |
963b5f2d |
191 | if(strlen(ptr) == 0) g_error("Not a valid file: %s\n", pathname); |
192 | if(strncmp("<system",ptr,7) !=0)g_error("Not a valid file: %s\n", pathname); |
193 | |
194 | for(i=0;i<entry_number;i++){ |
195 | if(fgets(buf,DIR_NAME_SIZE, fp)== NULL) |
196 | g_error("Not a valid file: %s\n", pathname); |
8710c6c7 |
197 | buf[strlen(buf)-1] = '\0'; |
963b5f2d |
198 | ptr = buf; |
199 | while(isspace(*ptr)) ptr++; |
200 | switch(i){ |
201 | case 0: |
202 | if(strncmp("node_name=",ptr,10)!=0) |
203 | g_error("Not a valid file: %s\n", pathname); |
204 | des->node_name = g_strdup(ptr+10); |
205 | break; |
206 | case 1: |
207 | if(strncmp("domainname=",ptr,11)!=0) |
208 | g_error("Not a valid file: %s\n", pathname); |
209 | des->domain_name = g_strdup(ptr+11); |
210 | break; |
211 | case 2: |
212 | if(strncmp("cpu=",ptr,4)!=0) |
213 | g_error("Not a valid file: %s\n", pathname); |
214 | des->nb_cpu = (unsigned)atoi(ptr+4); |
215 | break; |
216 | case 3: |
217 | if(strncmp("arch_size=",ptr,10)!=0) |
218 | g_error("Not a valid file: %s\n", pathname); |
219 | if(strcmp(ptr+10,"\"LP32\"") == 0) des->size = LTT_LP32; |
220 | else if(strcmp(ptr+10,"\"ILP32\"") == 0) des->size = LTT_ILP32; |
221 | else if(strcmp(ptr+10,"\"LP64\"") == 0) des->size = LTT_LP64; |
222 | else if(strcmp(ptr+10,"\"ILP64\"") == 0) des->size = LTT_ILP64; |
223 | else if(strcmp(ptr+10,"\"UNKNOWN\"") == 0) des->size = LTT_UNKNOWN; |
224 | break; |
225 | case 4: |
226 | if(strncmp("endian=",ptr,7)!=0) |
227 | g_error("Not a valid file: %s\n", pathname); |
228 | if(strcmp(ptr+7,"\"LITTLE_ENDIAN\"") == 0) |
229 | des->endian = LTT_LITTLE_ENDIAN; |
230 | else if(strcmp(ptr+7,"\"BIG_ENDIAN\"") == 0) |
231 | des->endian = LTT_BIG_ENDIAN; |
232 | break; |
233 | case 5: |
234 | if(strncmp("kernel_name=",ptr,12)!=0) |
235 | g_error("Not a valid file: %s\n", pathname); |
236 | des->kernel_name = g_strdup(ptr+12); |
237 | break; |
238 | case 6: |
239 | if(strncmp("kernel_release=",ptr,15)!=0) |
240 | g_error("Not a valid file: %s\n", pathname); |
241 | des->kernel_release = g_strdup(ptr+15); |
242 | break; |
243 | case 7: |
244 | if(strncmp("kernel_version=",ptr,15)!=0) |
245 | g_error("Not a valid file: %s\n", pathname); |
246 | des->kernel_version = g_strdup(ptr+15); |
247 | break; |
248 | case 8: |
249 | if(strncmp("machine=",ptr,8)!=0) |
250 | g_error("Not a valid file: %s\n", pathname); |
251 | des->machine = g_strdup(ptr+8); |
252 | break; |
253 | case 9: |
254 | if(strncmp("processor=",ptr,10)!=0) |
255 | g_error("Not a valid file: %s\n", pathname); |
256 | des->processor = g_strdup(ptr+10); |
257 | break; |
258 | case 10: |
259 | if(strncmp("hardware_platform=",ptr,18)!=0) |
260 | g_error("Not a valid file: %s\n", pathname); |
261 | des->hardware_platform = g_strdup(ptr+18); |
262 | break; |
263 | case 11: |
264 | if(strncmp("operating_system=",ptr,17)!=0) |
265 | g_error("Not a valid file: %s\n", pathname); |
266 | des->operating_system = g_strdup(ptr+17); |
267 | break; |
268 | case 12: |
269 | if(strncmp("ltt_major_version=",ptr,18)!=0) |
270 | g_error("Not a valid file: %s\n", pathname); |
271 | ptr += 18; |
8710c6c7 |
272 | // ptr++;//skip begining " |
273 | // ptr[strlen(ptr)-1] = '\0'; //get rid of the ending " |
963b5f2d |
274 | des->ltt_major_version = (unsigned)atoi(ptr); |
275 | break; |
276 | case 13: |
277 | if(strncmp("ltt_minor_version=",ptr,18)!=0) |
278 | g_error("Not a valid file: %s\n", pathname); |
279 | ptr += 18; |
8710c6c7 |
280 | // ptr++;//skip begining " |
281 | // ptr[strlen(ptr)-1] = '\0'; //get rid of the ending " |
963b5f2d |
282 | des->ltt_minor_version = (unsigned)atoi(ptr); |
283 | break; |
284 | case 14: |
285 | if(strncmp("ltt_block_size=",ptr,15)!=0) |
286 | g_error("Not a valid file: %s\n", pathname); |
287 | ptr += 15; |
8710c6c7 |
288 | // ptr++;//skip begining " |
289 | // ptr[strlen(ptr)-1] = '\0'; //get rid of the ending " |
963b5f2d |
290 | des->ltt_block_size = (unsigned)atoi(ptr); |
291 | break; |
292 | default: |
293 | g_error("Not a valid file: %s\n", pathname); |
294 | } |
6cd62ccf |
295 | } |
296 | |
963b5f2d |
297 | //get description |
298 | description[0] = '\0'; |
299 | if(fgets(buf,DIR_NAME_SIZE, fp)== NULL) |
300 | g_error("Not a valid file: %s\n", pathname); |
301 | ptr = buf; |
302 | while(isspace(*ptr)) ptr++; |
303 | if(*ptr != '>') g_error("Not a valid file: %s\n", pathname); |
304 | while((ptr=fgets(buf,DIR_NAME_SIZE, fp))!= NULL){ |
305 | ptr = buf; |
306 | while(isspace(*ptr)) ptr++; |
307 | if(strncmp("</system>",ptr,9) == 0 )break; |
308 | strcat(description, buf); |
309 | } |
310 | if(!ptr)g_error("Not a valid file: %s\n", pathname); |
311 | if(description[0] = '\0')des->description = NULL; |
312 | des->description = g_strdup(description); |
6cd62ccf |
313 | |
963b5f2d |
314 | fclose(fp); |
6cd62ccf |
315 | } |
316 | |
317 | /***************************************************************************** |
963b5f2d |
318 | *The following functions get facility/tracefile information |
6cd62ccf |
319 | ****************************************************************************/ |
320 | |
963b5f2d |
321 | void getFacilityInfo(LttTrace *t, char* eventdefs) |
6cd62ccf |
322 | { |
963b5f2d |
323 | DIR * dir; |
324 | struct dirent *entry; |
325 | char * ptr; |
326 | int i,j; |
327 | LttFacility * f; |
328 | LttEventType * et; |
e8bb1a73 |
329 | char name[DIR_NAME_SIZE]; |
963b5f2d |
330 | |
331 | dir = opendir(eventdefs); |
332 | if(!dir) g_error("Can not open directory: %s\n", eventdefs); |
333 | |
334 | while((entry = readdir(dir)) != NULL){ |
335 | ptr = &entry->d_name[strlen(entry->d_name)-4]; |
336 | if(strcmp(ptr,".xml") != 0) continue; |
e8bb1a73 |
337 | strcpy(name,eventdefs); |
338 | strcat(name,entry->d_name); |
339 | ltt_facility_open(t,name); |
963b5f2d |
340 | } |
341 | closedir(dir); |
342 | |
963b5f2d |
343 | for(j=0;j<t->facility_number;j++){ |
8710c6c7 |
344 | f = (LttFacility*)g_ptr_array_index(t->facilities, j); |
963b5f2d |
345 | for(i=0; i<f->event_number; i++){ |
346 | et = f->events[i]; |
40331ba8 |
347 | setFieldsOffset(NULL, et, NULL, t); |
963b5f2d |
348 | } |
349 | } |
350 | } |
6cd62ccf |
351 | |
963b5f2d |
352 | void getControlFileInfo(LttTrace *t, char* control) |
6cd62ccf |
353 | { |
963b5f2d |
354 | DIR * dir; |
355 | struct dirent *entry; |
e8bb1a73 |
356 | char name[DIR_NAME_SIZE]; |
963b5f2d |
357 | |
358 | dir = opendir(control); |
359 | if(!dir) g_error("Can not open directory: %s\n", control); |
360 | |
361 | while((entry = readdir(dir)) != NULL){ |
8710c6c7 |
362 | if(strcmp(entry->d_name,"facilities") != 0 && |
363 | strcmp(entry->d_name,"interrupts") != 0 && |
963b5f2d |
364 | strcmp(entry->d_name,"processes") != 0) continue; |
365 | |
e8bb1a73 |
366 | strcpy(name,control); |
367 | strcat(name,entry->d_name); |
368 | ltt_tracefile_open_control(t,name); |
963b5f2d |
369 | } |
370 | closedir(dir); |
6cd62ccf |
371 | } |
372 | |
963b5f2d |
373 | void getCpuFileInfo(LttTrace *t, char* cpu) |
6cd62ccf |
374 | { |
963b5f2d |
375 | DIR * dir; |
376 | struct dirent *entry; |
e8bb1a73 |
377 | char name[DIR_NAME_SIZE]; |
963b5f2d |
378 | |
379 | dir = opendir(cpu); |
380 | if(!dir) g_error("Can not open directory: %s\n", cpu); |
381 | |
382 | while((entry = readdir(dir)) != NULL){ |
8710c6c7 |
383 | if(strcmp(entry->d_name,".") != 0 && |
963b5f2d |
384 | strcmp(entry->d_name,"..") != 0 ){ |
e8bb1a73 |
385 | strcpy(name,cpu); |
386 | strcat(name,entry->d_name); |
387 | ltt_tracefile_open_cpu(t,name); |
963b5f2d |
388 | }else continue; |
389 | } |
390 | closedir(dir); |
6cd62ccf |
391 | } |
392 | |
963b5f2d |
393 | /***************************************************************************** |
394 | *A trace is specified as a pathname to the directory containing all the |
395 | *associated data (control tracefiles, per cpu tracefiles, event |
396 | *descriptions...). |
397 | * |
398 | *When a trace is closed, all the associated facilities, types and fields |
399 | *are released as well. |
400 | ****************************************************************************/ |
6cd62ccf |
401 | |
f7afe191 |
402 | LttTrace *ltt_trace_open(const char *pathname) |
6cd62ccf |
403 | { |
963b5f2d |
404 | LttTrace * t; |
405 | LttSystemDescription * sys_description; |
406 | char eventdefs[DIR_NAME_SIZE]; |
407 | char info[DIR_NAME_SIZE]; |
408 | char control[DIR_NAME_SIZE]; |
409 | char cpu[DIR_NAME_SIZE]; |
410 | char tmp[DIR_NAME_SIZE]; |
411 | gboolean has_slash = FALSE; |
412 | |
413 | //establish the pathname to different directories |
414 | if(pathname[strlen(pathname)-1] == '/')has_slash = TRUE; |
415 | strcpy(eventdefs,pathname); |
416 | if(!has_slash)strcat(eventdefs,"/"); |
417 | strcat(eventdefs,"eventdefs/"); |
418 | |
419 | strcpy(info,pathname); |
420 | if(!has_slash)strcat(info,"/"); |
421 | strcat(info,"info/"); |
422 | |
423 | strcpy(control,pathname); |
424 | if(!has_slash)strcat(control,"/"); |
425 | strcat(control,"control/"); |
426 | |
427 | strcpy(cpu,pathname); |
428 | if(!has_slash)strcat(cpu,"/"); |
429 | strcat(cpu,"cpu/"); |
430 | |
431 | //new trace |
432 | t = g_new(LttTrace, 1); |
433 | sys_description = g_new(LttSystemDescription, 1); |
434 | t->pathname = g_strdup(pathname); |
435 | t->facility_number = 0; |
436 | t->control_tracefile_number = 0; |
437 | t->per_cpu_tracefile_number = 0; |
438 | t->system_description = sys_description; |
439 | t->control_tracefiles = g_ptr_array_new(); |
440 | t->per_cpu_tracefiles = g_ptr_array_new(); |
441 | t->facilities = g_ptr_array_new(); |
442 | getDataEndianType(&(t->my_arch_size), &(t->my_arch_endian)); |
443 | |
444 | //get system description |
445 | strcpy(tmp,info); |
446 | strcat(tmp,"system.xml"); |
447 | getSystemInfo(sys_description, tmp); |
448 | |
b333a76b |
449 | //get facilities info |
450 | getFacilityInfo(t,eventdefs); |
451 | |
963b5f2d |
452 | //get control tracefile info |
453 | getControlFileInfo(t,control); |
454 | |
455 | //get cpu tracefile info |
456 | getCpuFileInfo(t,cpu); |
457 | |
963b5f2d |
458 | return t; |
6cd62ccf |
459 | } |
460 | |
49bf71b5 |
461 | char * ltt_trace_name(LttTrace *t) |
462 | { |
463 | return t->pathname; |
464 | } |
465 | |
466 | |
f7afe191 |
467 | /****************************************************************************** |
468 | * When we copy a trace, we want all the opening actions to happen again : |
469 | * the trace will be reopened and totally independant from the original. |
470 | * That's why we call ltt_trace_open. |
471 | *****************************************************************************/ |
472 | LttTrace *ltt_trace_copy(LttTrace *self) |
473 | { |
474 | return ltt_trace_open(self->pathname); |
475 | } |
476 | |
963b5f2d |
477 | void ltt_trace_close(LttTrace *t) |
6cd62ccf |
478 | { |
963b5f2d |
479 | int i; |
480 | LttTracefile * tf; |
481 | LttFacility * f; |
482 | |
483 | g_free(t->pathname); |
484 | |
485 | //free system_description |
486 | g_free(t->system_description->description); |
487 | g_free(t->system_description->node_name); |
488 | g_free(t->system_description->domain_name); |
489 | g_free(t->system_description->kernel_name); |
490 | g_free(t->system_description->kernel_release); |
491 | g_free(t->system_description->kernel_version); |
492 | g_free(t->system_description->machine); |
493 | g_free(t->system_description->processor); |
494 | g_free(t->system_description->hardware_platform); |
495 | g_free(t->system_description->operating_system); |
496 | g_free(t->system_description); |
497 | |
498 | //free control_tracefiles |
499 | for(i=0;i<t->control_tracefile_number;i++){ |
500 | tf = (LttTracefile*)g_ptr_array_index(t->control_tracefiles,i); |
501 | ltt_tracefile_close(tf); |
502 | } |
09ad4797 |
503 | g_ptr_array_free(t->control_tracefiles, TRUE); |
963b5f2d |
504 | |
505 | //free per_cpu_tracefiles |
506 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
507 | tf = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles,i); |
508 | ltt_tracefile_close(tf); |
509 | } |
09ad4797 |
510 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
963b5f2d |
511 | |
512 | //free facilities |
513 | for(i=0;i<t->facility_number;i++){ |
514 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
515 | ltt_facility_close(f); |
516 | } |
09ad4797 |
517 | g_ptr_array_free(t->facilities, TRUE); |
963b5f2d |
518 | |
519 | g_free(t); |
09ad4797 |
520 | |
521 | g_blow_chunks(); |
6cd62ccf |
522 | } |
523 | |
963b5f2d |
524 | |
6cd62ccf |
525 | /***************************************************************************** |
963b5f2d |
526 | *Get the system description of the trace |
6cd62ccf |
527 | ****************************************************************************/ |
528 | |
963b5f2d |
529 | LttSystemDescription *ltt_trace_system_description(LttTrace *t) |
6cd62ccf |
530 | { |
963b5f2d |
531 | return t->system_description; |
6cd62ccf |
532 | } |
533 | |
534 | /***************************************************************************** |
963b5f2d |
535 | * The following functions discover the facilities of the trace |
6cd62ccf |
536 | ****************************************************************************/ |
537 | |
963b5f2d |
538 | unsigned ltt_trace_facility_number(LttTrace *t) |
539 | { |
540 | return (unsigned)(t->facility_number); |
541 | } |
542 | |
543 | LttFacility *ltt_trace_facility_get(LttTrace *t, unsigned i) |
6cd62ccf |
544 | { |
963b5f2d |
545 | return (LttFacility*)g_ptr_array_index(t->facilities, i); |
6cd62ccf |
546 | } |
547 | |
548 | /***************************************************************************** |
549 | *Function name |
963b5f2d |
550 | * ltt_trace_facility_find : find facilities in the trace |
6cd62ccf |
551 | *Input params |
963b5f2d |
552 | * t : the trace |
553 | * name : facility name |
554 | *Output params |
555 | * position : position of the facility in the trace |
6cd62ccf |
556 | *Return value |
963b5f2d |
557 | * : the number of facilities |
6cd62ccf |
558 | ****************************************************************************/ |
559 | |
963b5f2d |
560 | unsigned ltt_trace_facility_find(LttTrace *t, char *name, unsigned *position) |
6cd62ccf |
561 | { |
963b5f2d |
562 | int i, count=0; |
563 | LttFacility * f; |
8a3005f3 |
564 | for(i=0;i<t->facility_number;i++){ |
963b5f2d |
565 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
566 | if(strcmp(f->name,name)==0){ |
567 | count++; |
568 | if(count==1) *position = i; |
569 | }else{ |
570 | if(count) break; |
571 | } |
572 | } |
573 | return count; |
6cd62ccf |
574 | } |
575 | |
576 | /***************************************************************************** |
963b5f2d |
577 | * Functions to discover all the event types in the trace |
6cd62ccf |
578 | ****************************************************************************/ |
579 | |
963b5f2d |
580 | unsigned ltt_trace_eventtype_number(LttTrace *t) |
6cd62ccf |
581 | { |
963b5f2d |
582 | int i; |
583 | unsigned count = 0; |
584 | LttFacility * f; |
b445142a |
585 | for(i=0;i<t->facility_number;i++){ |
963b5f2d |
586 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
587 | count += f->event_number; |
588 | } |
589 | return count; |
6cd62ccf |
590 | } |
591 | |
963b5f2d |
592 | LttFacility * ltt_trace_facility_by_id(LttTrace * trace, unsigned id) |
6cd62ccf |
593 | { |
963b5f2d |
594 | LttFacility * facility; |
595 | int i; |
596 | for(i=0;i<trace->facility_number;i++){ |
597 | facility = (LttFacility*) g_ptr_array_index(trace->facilities,i); |
598 | if(id >= facility->base_id && |
599 | id < facility->base_id + facility->event_number) |
600 | break; |
601 | } |
602 | if(i==trace->facility_number) return NULL; |
603 | else return facility; |
6cd62ccf |
604 | } |
605 | |
963b5f2d |
606 | LttEventType *ltt_trace_eventtype_get(LttTrace *t, unsigned evId) |
6cd62ccf |
607 | { |
963b5f2d |
608 | LttFacility * f; |
609 | f = ltt_trace_facility_by_id(t,evId); |
610 | if(!f) return NULL; |
611 | return f->events[evId - f->base_id]; |
6cd62ccf |
612 | } |
613 | |
614 | /***************************************************************************** |
963b5f2d |
615 | *There is one "per cpu" tracefile for each CPU, numbered from 0 to |
616 | *the maximum number of CPU in the system. When the number of CPU installed |
617 | *is less than the maximum, some positions are unused. There are also a |
618 | *number of "control" tracefiles (facilities, interrupts...). |
6cd62ccf |
619 | ****************************************************************************/ |
963b5f2d |
620 | unsigned ltt_trace_control_tracefile_number(LttTrace *t) |
6cd62ccf |
621 | { |
963b5f2d |
622 | return t->control_tracefile_number; |
6cd62ccf |
623 | } |
624 | |
963b5f2d |
625 | unsigned ltt_trace_per_cpu_tracefile_number(LttTrace *t) |
6cd62ccf |
626 | { |
963b5f2d |
627 | return t->per_cpu_tracefile_number; |
6cd62ccf |
628 | } |
629 | |
630 | /***************************************************************************** |
963b5f2d |
631 | *It is possible to search for the tracefiles by name or by CPU position. |
632 | *The index within the tracefiles of the same type is returned if found |
633 | *and a negative value otherwise. |
6cd62ccf |
634 | ****************************************************************************/ |
635 | |
963b5f2d |
636 | int ltt_trace_control_tracefile_find(LttTrace *t, char *name) |
6cd62ccf |
637 | { |
963b5f2d |
638 | LttTracefile * tracefile; |
639 | int i; |
640 | for(i=0;i<t->control_tracefile_number;i++){ |
641 | tracefile = (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i); |
642 | if(strcmp(tracefile->name, name)==0)break; |
643 | } |
644 | if(i == t->control_tracefile_number) return -1; |
645 | return i; |
6cd62ccf |
646 | } |
647 | |
963b5f2d |
648 | int ltt_trace_per_cpu_tracefile_find(LttTrace *t, unsigned i) |
6cd62ccf |
649 | { |
963b5f2d |
650 | LttTracefile * tracefile; |
651 | int j, name; |
652 | for(j=0;j<t->per_cpu_tracefile_number;j++){ |
653 | tracefile = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, j); |
654 | name = atoi(tracefile->name); |
655 | if(name == (int)i)break; |
656 | } |
657 | if(j == t->per_cpu_tracefile_number) return -1; |
658 | return j; |
6cd62ccf |
659 | } |
660 | |
661 | /***************************************************************************** |
963b5f2d |
662 | *Get a specific tracefile |
6cd62ccf |
663 | ****************************************************************************/ |
664 | |
963b5f2d |
665 | LttTracefile *ltt_trace_control_tracefile_get(LttTrace *t, unsigned i) |
6cd62ccf |
666 | { |
5598cfe3 |
667 | return (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i); |
963b5f2d |
668 | } |
669 | |
670 | LttTracefile *ltt_trace_per_cpu_tracefile_get(LttTrace *t, unsigned i) |
671 | { |
672 | return (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, i); |
6cd62ccf |
673 | } |
674 | |
487ad181 |
675 | /***************************************************************************** |
676 | * Get the start time and end time of the trace |
677 | ****************************************************************************/ |
678 | |
679 | void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end) |
680 | { |
681 | LttTime startSmall, startTmp, endBig, endTmp; |
682 | int i, j=0; |
683 | LttTracefile * tf; |
684 | |
685 | for(i=0;i<t->control_tracefile_number;i++){ |
686 | tf = g_ptr_array_index(t->control_tracefiles, i); |
687 | readBlock(tf,1); |
688 | startTmp = tf->a_block_start->time; |
689 | readBlock(tf,tf->block_number); |
690 | endTmp = tf->a_block_end->time; |
691 | if(i==0){ |
692 | startSmall = startTmp; |
693 | endBig = endTmp; |
694 | j = 1; |
695 | continue; |
696 | } |
308711e5 |
697 | if(ltt_time_compare(startSmall,startTmp) > 0) startSmall = startTmp; |
698 | if(ltt_time_compare(endBig,endTmp) < 0) endBig = endTmp; |
487ad181 |
699 | } |
700 | |
701 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
702 | tf = g_ptr_array_index(t->per_cpu_tracefiles, i); |
703 | readBlock(tf,1); |
704 | startTmp = tf->a_block_start->time; |
705 | readBlock(tf,tf->block_number); |
706 | endTmp = tf->a_block_end->time; |
707 | if(j == 0 && i==0){ |
708 | startSmall = startTmp; |
709 | endBig = endTmp; |
710 | continue; |
711 | } |
308711e5 |
712 | if(ltt_time_compare(startSmall,startTmp) > 0) startSmall = startTmp; |
713 | if(ltt_time_compare(endBig,endTmp) < 0) endBig = endTmp; |
487ad181 |
714 | } |
715 | |
716 | *start = startSmall; |
717 | *end = endBig; |
718 | } |
719 | |
720 | |
6cd62ccf |
721 | /***************************************************************************** |
963b5f2d |
722 | *Get the name of a tracefile |
6cd62ccf |
723 | ****************************************************************************/ |
724 | |
963b5f2d |
725 | char *ltt_tracefile_name(LttTracefile *tf) |
6cd62ccf |
726 | { |
963b5f2d |
727 | return tf->name; |
6cd62ccf |
728 | } |
729 | |
80da81ad |
730 | /***************************************************************************** |
731 | * Get the number of blocks in the tracefile |
732 | ****************************************************************************/ |
733 | |
734 | unsigned ltt_tracefile_block_number(LttTracefile *tf) |
735 | { |
736 | return tf->block_number; |
737 | } |
738 | |
6cd62ccf |
739 | /***************************************************************************** |
740 | *Function name |
741 | * ltt_tracefile_seek_time: seek to the first event of the trace with time |
742 | * larger or equal to time |
743 | *Input params |
744 | * t : tracefile |
745 | * time : criteria of the time |
6cd62ccf |
746 | ****************************************************************************/ |
caf7a67a |
747 | void ltt_tracefile_find_time_block(LttTracefile *t, LttTime time, |
748 | int start_block, int end_block) |
749 | { |
750 | int err, tmp_block, s, e; |
751 | int headTime; |
752 | int tailTime; |
753 | |
754 | err=readBlock(t,start_block); |
755 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
756 | if(start_block == end_block)return; |
757 | |
758 | tailTime = ltt_time_compare(t->a_block_end->time, time); |
759 | if(tailTime >= 0) return; |
760 | |
761 | err=readBlock(t,end_block); |
762 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
763 | if(start_block+1 == end_block)return; |
764 | |
765 | headTime = ltt_time_compare(t->a_block_start->time, time); |
766 | if(headTime <= 0 ) return; |
767 | |
768 | tmp_block = (end_block + start_block)/2; |
769 | err=readBlock(t,tmp_block); |
770 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
771 | |
772 | headTime = ltt_time_compare(t->a_block_start->time, time); |
773 | tailTime = ltt_time_compare(t->a_block_end->time, time); |
774 | if(headTime <= 0 && tailTime >= 0) return; |
775 | |
776 | if(headTime > 0){ |
777 | s = start_block + 1; |
778 | e = tmp_block - 1; |
779 | if(s <= e) |
780 | ltt_tracefile_find_time_block(t, time, s, e); |
781 | else return; |
782 | } |
783 | |
784 | if(tailTime < 0){ |
785 | s = tmp_block + 1; |
786 | e = end_block - 1; |
787 | if(s <= e) |
788 | ltt_tracefile_find_time_block(t, time, s, e); |
789 | else return; |
790 | } |
791 | } |
792 | |
793 | void ltt_tracefile_backward_find_time_block(LttTracefile *t, LttTime time) |
794 | { |
795 | int t_time, h_time, err; |
796 | err=readBlock(t,t->which_block-1); |
797 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
798 | h_time = ltt_time_compare(t->a_block_start->time, time); |
799 | t_time = ltt_time_compare(t->a_block_end->time, time); |
800 | if(h_time == 0){ |
801 | int tmp; |
802 | if(t->which_block == 1) return; |
803 | err=readBlock(t,t->which_block-1); |
804 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
805 | tmp = ltt_time_compare(t->a_block_end->time, time); |
806 | if(tmp == 0) return ltt_tracefile_seek_time(t, time); |
807 | err=readBlock(t,t->which_block+1); |
808 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
809 | }else if(h_time > 0){ |
810 | ltt_tracefile_find_time_block(t, time, 1, t->which_block); |
811 | return ltt_tracefile_seek_time(t, time) ; |
812 | }else{ |
813 | if(t_time >= 0) return ltt_tracefile_seek_time(t, time); |
814 | err=readBlock(t,t->which_block+1); |
815 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
816 | } |
817 | } |
6cd62ccf |
818 | |
963b5f2d |
819 | void ltt_tracefile_seek_time(LttTracefile *t, LttTime time) |
6cd62ccf |
820 | { |
821 | int err; |
963b5f2d |
822 | LttTime lttTime; |
308711e5 |
823 | int headTime = ltt_time_compare(t->a_block_start->time, time); |
824 | int tailTime = ltt_time_compare(t->a_block_end->time, time); |
62e55dd6 |
825 | LttEvent * ev; |
826 | |
6cd62ccf |
827 | if(headTime < 0 && tailTime > 0){ |
308711e5 |
828 | if(ltt_time_compare(t->a_block_end->time, t->current_event_time) !=0) { |
db55eaae |
829 | lttTime = getEventTime(t); |
308711e5 |
830 | err = ltt_time_compare(lttTime, time); |
db55eaae |
831 | if(err > 0){ |
308711e5 |
832 | if(t->which_event==2 || (&t->prev_event_time,&time)<0){ |
1a3b8cbd |
833 | return; |
db55eaae |
834 | }else{ |
835 | updateTracefile(t); |
836 | return ltt_tracefile_seek_time(t, time); |
1a3b8cbd |
837 | } |
db55eaae |
838 | }else if(err < 0){ |
839 | while(1){ |
840 | ev = ltt_tracefile_read(t); |
841 | if(ev == NULL){ |
842 | g_print("End of file\n"); |
843 | return; |
844 | } |
845 | lttTime = getEventTime(t); |
308711e5 |
846 | err = ltt_time_compare(lttTime, time); |
db55eaae |
847 | if(err >= 0)return; |
848 | } |
849 | }else return; |
850 | }else{//we are at the end of the block |
851 | updateTracefile(t); |
852 | return ltt_tracefile_seek_time(t, time); |
853 | } |
e37c1372 |
854 | }else if(headTime >= 0){ |
6cd62ccf |
855 | if(t->which_block == 1){ |
856 | updateTracefile(t); |
857 | }else{ |
1ee6a9af |
858 | if(ltt_time_compare(t->prev_block_end_time, time) >= 0 || |
859 | (t->prev_block_end_time.tv_sec == 0 && |
860 | t->prev_block_end_time.tv_nsec == 0 )){ |
caf7a67a |
861 | ltt_tracefile_backward_find_time_block(t, time); |
6cd62ccf |
862 | }else{ |
863 | updateTracefile(t); |
864 | } |
865 | } |
40331ba8 |
866 | }else if(tailTime < 0){ |
6cd62ccf |
867 | if(t->which_block != t->block_number){ |
caf7a67a |
868 | ltt_tracefile_find_time_block(t, time, t->which_block+1, t->block_number); |
869 | return ltt_tracefile_seek_time(t, time); |
963b5f2d |
870 | }else { |
25975c93 |
871 | g_print("End of file\n"); |
963b5f2d |
872 | return; |
873 | } |
40331ba8 |
874 | }else if(tailTime == 0){ |
e37c1372 |
875 | t->cur_event_pos = t->last_event_pos; |
62e55dd6 |
876 | t->current_event_time = time; |
877 | t->cur_heart_beat_number = 0; |
878 | t->prev_event_time.tv_sec = 0; |
879 | t->prev_event_time.tv_nsec = 0; |
40331ba8 |
880 | return; |
6cd62ccf |
881 | } |
6cd62ccf |
882 | } |
883 | |
80da81ad |
884 | /***************************************************************************** |
885 | * Seek to the first event with position equal or larger to ep |
886 | ****************************************************************************/ |
887 | |
888 | void ltt_tracefile_seek_position(LttTracefile *t, LttEventPosition *ep) |
889 | { |
890 | //if we are at the right place, just return |
891 | if(t->which_block == ep->block_num && t->which_event == ep->event_num) |
892 | return; |
893 | |
894 | if(t->which_block == ep->block_num) updateTracefile(t); |
895 | else readBlock(t,ep->block_num); |
896 | |
897 | //event offset is availiable |
898 | if(ep->old_position){ |
899 | t->cur_heart_beat_number = ep->heart_beat_number; |
900 | t->cur_event_pos = t->buffer + ep->event_offset; |
901 | return; |
902 | } |
903 | |
904 | //only block number and event index are availiable |
905 | while(t->which_event < ep->event_num) ltt_tracefile_read(t); |
906 | |
907 | return; |
908 | } |
909 | |
6cd62ccf |
910 | /***************************************************************************** |
911 | *Function name |
40331ba8 |
912 | * ltt_tracefile_read : read the current event, set the pointer to the next |
6cd62ccf |
913 | *Input params |
914 | * t : tracefile |
915 | *Return value |
963b5f2d |
916 | * LttEvent * : an event to be processed |
6cd62ccf |
917 | ****************************************************************************/ |
918 | |
963b5f2d |
919 | LttEvent *ltt_tracefile_read(LttTracefile *t) |
6cd62ccf |
920 | { |
7525f9e5 |
921 | LttEvent * lttEvent = &t->an_event; |
963b5f2d |
922 | int err; |
6cd62ccf |
923 | |
bdc36259 |
924 | if(t->cur_event_pos == t->buffer + t->block_size){ |
925 | if(t->which_block == t->block_number){ |
bdc36259 |
926 | return NULL; |
927 | } |
928 | err = readBlock(t, t->which_block + 1); |
929 | if(err)g_error("Can not read tracefile"); |
930 | } |
931 | |
cbd41522 |
932 | lttEvent->event_id = (int)(*(guint16 *)(t->cur_event_pos)); |
963b5f2d |
933 | if(lttEvent->event_id == TRACE_TIME_HEARTBEAT) |
934 | t->cur_heart_beat_number++; |
6cd62ccf |
935 | |
40331ba8 |
936 | t->prev_event_time = t->current_event_time; |
62e55dd6 |
937 | // t->current_event_time = getEventTime(t); |
6cd62ccf |
938 | |
cbd41522 |
939 | lttEvent->time_delta = *(guint32 *)(t->cur_event_pos + EVENT_ID_SIZE); |
963b5f2d |
940 | lttEvent->event_time = t->current_event_time; |
941 | |
6cd62ccf |
942 | lttEvent->tracefile = t; |
943 | lttEvent->data = t->cur_event_pos + EVENT_HEADER_SIZE; |
908f42fa |
944 | lttEvent->which_block = t->which_block; |
945 | lttEvent->which_event = t->which_event; |
6cd62ccf |
946 | |
40331ba8 |
947 | //update the fields of the current event and go to the next event |
948 | err = skipEvent(t); |
40331ba8 |
949 | if(err == ERANGE) g_error("event id is out of range\n"); |
40331ba8 |
950 | |
e4eced0f |
951 | lttEvent->event_cycle_count = t->cur_cycle_count; |
952 | |
6cd62ccf |
953 | return lttEvent; |
954 | } |
955 | |
956 | /**************************************************************************** |
957 | *Function name |
958 | * readFile : wrap function to read from a file |
959 | *Input Params |
960 | * fd : file descriptor |
961 | * buf : buf to contain the content |
962 | * size : number of bytes to be read |
963 | * mesg : message to be printed if some thing goes wrong |
964 | *return value |
965 | * 0 : success |
966 | * EIO : can not read from the file |
967 | ****************************************************************************/ |
968 | |
969 | int readFile(int fd, void * buf, size_t size, char * mesg) |
970 | { |
971 | ssize_t nbBytes; |
972 | nbBytes = read(fd, buf, size); |
973 | if(nbBytes != size){ |
974 | printf("%s\n",mesg); |
975 | return EIO; |
976 | } |
977 | return 0; |
978 | } |
979 | |
980 | /**************************************************************************** |
981 | *Function name |
982 | * readBlock : read a block from the file |
983 | *Input Params |
984 | * lttdes : ltt trace file |
985 | * whichBlock : the block which will be read |
986 | *return value |
987 | * 0 : success |
988 | * EINVAL : lseek fail |
989 | * EIO : can not read from the file |
990 | ****************************************************************************/ |
991 | |
963b5f2d |
992 | int readBlock(LttTracefile * tf, int whichBlock) |
6cd62ccf |
993 | { |
994 | off_t nbBytes; |
cbd41522 |
995 | guint32 lostSize; |
6cd62ccf |
996 | |
997 | if(whichBlock - tf->which_block == 1 && tf->which_block != 0){ |
963b5f2d |
998 | tf->prev_block_end_time = tf->a_block_end->time; |
40331ba8 |
999 | tf->prev_event_time = tf->a_block_end->time; |
6cd62ccf |
1000 | }else{ |
1001 | tf->prev_block_end_time.tv_sec = 0; |
1002 | tf->prev_block_end_time.tv_nsec = 0; |
40331ba8 |
1003 | tf->prev_event_time.tv_sec = 0; |
1004 | tf->prev_event_time.tv_nsec = 0; |
6cd62ccf |
1005 | } |
6cd62ccf |
1006 | |
963b5f2d |
1007 | nbBytes=lseek(tf->fd,(off_t)((whichBlock-1)*tf->block_size), SEEK_SET); |
6cd62ccf |
1008 | if(nbBytes == -1) return EINVAL; |
1009 | |
963b5f2d |
1010 | if(readFile(tf->fd,tf->buffer,tf->block_size,"Unable to read a block")) |
1011 | return EIO; |
6cd62ccf |
1012 | |
963b5f2d |
1013 | tf->a_block_start=(BlockStart *) (tf->buffer + EVENT_HEADER_SIZE); |
cbd41522 |
1014 | lostSize = *(guint32 *)(tf->buffer + tf->block_size - sizeof(guint32)); |
963b5f2d |
1015 | tf->a_block_end=(BlockEnd *)(tf->buffer + tf->block_size - |
1016 | lostSize + EVENT_HEADER_SIZE); |
e37c1372 |
1017 | tf->last_event_pos = tf->buffer + tf->block_size - lostSize; |
6cd62ccf |
1018 | |
6cd62ccf |
1019 | tf->which_block = whichBlock; |
963b5f2d |
1020 | tf->which_event = 1; |
40331ba8 |
1021 | tf->cur_event_pos = tf->buffer;//the beginning of the block, block start ev |
6cd62ccf |
1022 | tf->cur_heart_beat_number = 0; |
963b5f2d |
1023 | |
6cd62ccf |
1024 | getCyclePerNsec(tf); |
1025 | |
62e55dd6 |
1026 | tf->current_event_time = getEventTime(tf); |
40331ba8 |
1027 | |
6cd62ccf |
1028 | return 0; |
1029 | } |
1030 | |
1031 | /***************************************************************************** |
1032 | *Function name |
1033 | * updateTracefile : reinitialize the info of the block which is already |
1034 | * in the buffer |
1035 | *Input params |
1036 | * tf : tracefile |
1037 | ****************************************************************************/ |
1038 | |
963b5f2d |
1039 | void updateTracefile(LttTracefile * tf) |
6cd62ccf |
1040 | { |
963b5f2d |
1041 | tf->which_event = 1; |
40331ba8 |
1042 | tf->cur_event_pos = tf->buffer; |
62e55dd6 |
1043 | tf->current_event_time = getEventTime(tf); |
6cd62ccf |
1044 | tf->cur_heart_beat_number = 0; |
1045 | |
1046 | tf->prev_event_time.tv_sec = 0; |
1047 | tf->prev_event_time.tv_nsec = 0; |
1048 | } |
1049 | |
1050 | /***************************************************************************** |
1051 | *Function name |
1052 | * skipEvent : go to the next event, update the fields of the current event |
1053 | *Input params |
1054 | * t : tracefile |
1055 | *return value |
1056 | * 0 : success |
6cd62ccf |
1057 | * ERANGE : event id is out of range |
1058 | ****************************************************************************/ |
1059 | |
963b5f2d |
1060 | int skipEvent(LttTracefile * t) |
6cd62ccf |
1061 | { |
1062 | int evId, err; |
1063 | void * evData; |
963b5f2d |
1064 | LttEventType * evT; |
1065 | LttField * rootFld; |
6cd62ccf |
1066 | |
cbd41522 |
1067 | evId = (int)(*(guint16 *)(t->cur_event_pos)); |
6cd62ccf |
1068 | evData = t->cur_event_pos + EVENT_HEADER_SIZE; |
6cd62ccf |
1069 | |
908f42fa |
1070 | evT = ltt_trace_eventtype_get(t->trace,(unsigned)evId); |
47a166fc |
1071 | |
908f42fa |
1072 | if(evT) rootFld = evT->root_field; |
1073 | else return ERANGE; |
6cd62ccf |
1074 | |
908f42fa |
1075 | if(rootFld){ |
1076 | //event has string/sequence or the last event is not the same event |
1077 | if((evT->latest_block!=t->which_block || evT->latest_event!=t->which_event) |
1078 | && rootFld->field_fixed == 0){ |
1079 | setFieldsOffset(t, evT, evData, t->trace); |
47a166fc |
1080 | } |
908f42fa |
1081 | t->cur_event_pos += EVENT_HEADER_SIZE + rootFld->field_size; |
1082 | }else t->cur_event_pos += EVENT_HEADER_SIZE; |
1083 | |
1084 | evT->latest_block = t->which_block; |
1085 | evT->latest_event = t->which_event; |
1086 | |
6cd62ccf |
1087 | //the next event is in the next block |
963b5f2d |
1088 | if(evId == TRACE_BLOCK_END){ |
bdc36259 |
1089 | t->cur_event_pos = t->buffer + t->block_size; |
6cd62ccf |
1090 | }else{ |
1091 | t->which_event++; |
62e55dd6 |
1092 | t->current_event_time = getEventTime(t); |
6cd62ccf |
1093 | } |
1094 | |
1095 | return 0; |
1096 | } |
1097 | |
1098 | /***************************************************************************** |
1099 | *Function name |
1100 | * getCyclePerNsec : calculate cycles per nsec for current block |
1101 | *Input Params |
1102 | * t : tracefile |
1103 | ****************************************************************************/ |
1104 | |
963b5f2d |
1105 | void getCyclePerNsec(LttTracefile * t) |
6cd62ccf |
1106 | { |
963b5f2d |
1107 | LttTime lBufTotalTime; /* Total time for this buffer */ |
1108 | LttCycleCount lBufTotalNSec; /* Total time for this buffer in nsecs */ |
1109 | LttCycleCount lBufTotalCycle;/* Total cycles for this buffer */ |
6cd62ccf |
1110 | |
1111 | /* Calculate the total time for this buffer */ |
308711e5 |
1112 | lBufTotalTime = ltt_time_sub(t->a_block_end->time, t->a_block_start->time); |
6cd62ccf |
1113 | |
1114 | /* Calculate the total cycles for this bufffer */ |
e4eced0f |
1115 | lBufTotalCycle = t->a_block_end->cycle_count; |
1116 | lBufTotalCycle -= t->a_block_start->cycle_count; |
6cd62ccf |
1117 | |
1118 | /* Convert the total time to nsecs */ |
e4eced0f |
1119 | lBufTotalNSec = lBufTotalTime.tv_sec; |
308711e5 |
1120 | lBufTotalNSec *= NANOSECONDS_PER_SECOND; |
e4eced0f |
1121 | lBufTotalNSec += lBufTotalTime.tv_nsec; |
6cd62ccf |
1122 | |
1123 | t->cycle_per_nsec = (double)lBufTotalCycle / (double)lBufTotalNSec; |
1124 | } |
1125 | |
1126 | /**************************************************************************** |
1127 | *Function name |
1128 | * getEventTime : obtain the time of an event |
1129 | *Input params |
1130 | * tf : tracefile |
1131 | *Return value |
963b5f2d |
1132 | * LttTime : the time of the event |
6cd62ccf |
1133 | ****************************************************************************/ |
1134 | |
963b5f2d |
1135 | LttTime getEventTime(LttTracefile * tf) |
6cd62ccf |
1136 | { |
963b5f2d |
1137 | LttTime time; |
1138 | LttCycleCount cycle_count; // cycle count for the current event |
1139 | LttCycleCount lEventTotalCycle; // Total cycles from start for event |
1140 | double lEventNSec; // Total usecs from start for event |
1141 | LttTime lTimeOffset; // Time offset in struct LttTime |
cbd41522 |
1142 | guint16 evId; |
1143 | gint64 nanoSec, tmpCycleCount = (((guint64)1)<<32); |
e4eced0f |
1144 | static LttCycleCount preCycleCount = 0; |
1145 | static int count = 0; |
1146 | |
cbd41522 |
1147 | evId = *(guint16 *)tf->cur_event_pos; |
e4eced0f |
1148 | if(evId == TRACE_BLOCK_START){ |
1149 | count = 0; |
1150 | preCycleCount = 0; |
1151 | tf->cur_cycle_count = tf->a_block_start->cycle_count; |
40331ba8 |
1152 | return tf->a_block_start->time; |
e4eced0f |
1153 | }else if(evId == TRACE_BLOCK_END){ |
1154 | count = 0; |
1155 | preCycleCount = 0; |
1156 | tf->cur_cycle_count = tf->a_block_end->cycle_count; |
40331ba8 |
1157 | return tf->a_block_end->time; |
e4eced0f |
1158 | } |
40331ba8 |
1159 | |
e4eced0f |
1160 | // Calculate total time in cycles from start of buffer for this event |
cbd41522 |
1161 | cycle_count = (LttCycleCount)*(guint32 *)(tf->cur_event_pos + EVENT_ID_SIZE); |
e4eced0f |
1162 | |
1163 | if(cycle_count < preCycleCount)count++; |
1164 | preCycleCount = cycle_count; |
1165 | cycle_count += tmpCycleCount * count; |
1166 | |
1167 | if(tf->cur_heart_beat_number > count) |
1168 | cycle_count += tmpCycleCount * (tf->cur_heart_beat_number - count); |
1169 | |
1170 | tf->cur_cycle_count = cycle_count; |
1171 | |
1172 | lEventTotalCycle = cycle_count; |
1173 | lEventTotalCycle -= tf->a_block_start->cycle_count; |
6cd62ccf |
1174 | |
963b5f2d |
1175 | // Convert it to nsecs |
6cd62ccf |
1176 | lEventNSec = lEventTotalCycle / tf->cycle_per_nsec; |
e4eced0f |
1177 | nanoSec = lEventNSec; |
1178 | |
963b5f2d |
1179 | // Determine offset in struct LttTime |
308711e5 |
1180 | lTimeOffset.tv_nsec = nanoSec % NANOSECONDS_PER_SECOND; |
1181 | lTimeOffset.tv_sec = nanoSec / NANOSECONDS_PER_SECOND; |
6cd62ccf |
1182 | |
308711e5 |
1183 | time = ltt_time_add(tf->a_block_start->time, lTimeOffset); |
e4eced0f |
1184 | |
6cd62ccf |
1185 | return time; |
1186 | } |
1187 | |
1188 | /***************************************************************************** |
1189 | *Function name |
1190 | * setFieldsOffset : set offset of the fields |
1191 | *Input params |
1192 | * tracefile : opened trace file |
1193 | * evT : the event type |
1194 | * evD : event data, it may be NULL |
1195 | ****************************************************************************/ |
1196 | |
40331ba8 |
1197 | void setFieldsOffset(LttTracefile *tf,LttEventType *evT,void *evD,LttTrace* t) |
6cd62ccf |
1198 | { |
963b5f2d |
1199 | LttField * rootFld = evT->root_field; |
6cd62ccf |
1200 | // rootFld->base_address = evD; |
1201 | |
8710c6c7 |
1202 | if(rootFld) |
1203 | rootFld->field_size = getFieldtypeSize(tf, evT, 0,0,rootFld, evD,t); |
6cd62ccf |
1204 | } |
1205 | |
1206 | /***************************************************************************** |
1207 | *Function name |
1208 | * getFieldtypeSize: get the size of the field type (primitive type) |
1209 | *Input params |
1210 | * tracefile : opened trace file |
1211 | * evT : event type |
1212 | * offsetRoot : offset from the root |
1213 | * offsetParent : offset from the parrent |
1214 | * fld : field |
1215 | * evD : event data, it may be NULL |
1216 | *Return value |
1217 | * int : size of the field |
1218 | ****************************************************************************/ |
1219 | |
963b5f2d |
1220 | int getFieldtypeSize(LttTracefile * t, LttEventType * evT, int offsetRoot, |
40331ba8 |
1221 | int offsetParent, LttField * fld, void *evD, LttTrace *trace) |
6cd62ccf |
1222 | { |
1223 | int size, size1, element_number, i, offset1, offset2; |
963b5f2d |
1224 | LttType * type = fld->field_type; |
6cd62ccf |
1225 | |
8710c6c7 |
1226 | if(t){ |
963b5f2d |
1227 | if(evT->latest_block==t->which_block && evT->latest_event==t->which_event){ |
1228 | return fld->field_size; |
1229 | } |
1230 | } |
6cd62ccf |
1231 | |
1232 | if(fld->field_fixed == 1){ |
1233 | if(fld == evT->root_field) return fld->field_size; |
1234 | } |
1235 | |
1236 | if(type->type_class != LTT_STRUCT && type->type_class != LTT_ARRAY && |
1237 | type->type_class != LTT_SEQUENCE && type->type_class != LTT_STRING){ |
1238 | if(fld->field_fixed == -1){ |
40331ba8 |
1239 | size = (int) ltt_type_size(trace, type); |
6cd62ccf |
1240 | fld->field_fixed = 1; |
1241 | }else size = fld->field_size; |
1242 | |
1243 | }else if(type->type_class == LTT_ARRAY){ |
1244 | element_number = (int) type->element_number; |
1245 | if(fld->field_fixed == -1){ |
40331ba8 |
1246 | size = getFieldtypeSize(t, evT, offsetRoot,0,fld->child[0], NULL, trace); |
6cd62ccf |
1247 | if(size == 0){ //has string or sequence |
1248 | fld->field_fixed = 0; |
1249 | }else{ |
1250 | fld->field_fixed = 1; |
1251 | size *= element_number; |
1252 | } |
1253 | }else if(fld->field_fixed == 0){// has string or sequence |
1254 | size = 0; |
1255 | for(i=0;i<element_number;i++){ |
1256 | size += getFieldtypeSize(t, evT, offsetRoot+size,size, |
40331ba8 |
1257 | fld->child[0], evD+size, trace); |
6cd62ccf |
1258 | } |
1259 | }else size = fld->field_size; |
1260 | |
1261 | }else if(type->type_class == LTT_SEQUENCE){ |
40331ba8 |
1262 | size1 = (int) ltt_type_size(trace, type); |
6cd62ccf |
1263 | if(fld->field_fixed == -1){ |
908f42fa |
1264 | fld->sequ_number_size = size1; |
6cd62ccf |
1265 | fld->field_fixed = 0; |
40331ba8 |
1266 | size = getFieldtypeSize(t, evT, offsetRoot,0,fld->child[0], NULL, trace); |
6cd62ccf |
1267 | fld->element_size = size; |
1268 | }else{//0: sequence |
1269 | element_number = getIntNumber(size1,evD); |
1270 | type->element_number = element_number; |
1271 | if(fld->element_size > 0){ |
1272 | size = element_number * fld->element_size; |
1273 | }else{//sequence has string or sequence |
1274 | size = 0; |
1275 | for(i=0;i<element_number;i++){ |
1276 | size += getFieldtypeSize(t, evT, offsetRoot+size+size1,size+size1, |
40331ba8 |
1277 | fld->child[0], evD+size+size1, trace); |
6cd62ccf |
1278 | } |
1279 | } |
1280 | size += size1; |
1281 | } |
1282 | |
1283 | }else if(type->type_class == LTT_STRING){ |
1284 | size = 0; |
1285 | if(fld->field_fixed == -1){ |
1286 | fld->field_fixed = 0; |
1287 | }else{//0: string |
47a166fc |
1288 | size = strlen((char*)evD) + 1; //include end : '\0' |
6cd62ccf |
1289 | } |
1290 | |
1291 | }else if(type->type_class == LTT_STRUCT){ |
1292 | element_number = (int) type->element_number; |
1293 | size = 0; |
1294 | if(fld->field_fixed == -1){ |
1295 | offset1 = offsetRoot; |
1296 | offset2 = 0; |
1297 | for(i=0;i<element_number;i++){ |
40331ba8 |
1298 | size1=getFieldtypeSize(t, evT,offset1,offset2, fld->child[i], NULL, trace); |
6cd62ccf |
1299 | if(size1 > 0 && size >= 0){ |
1300 | size += size1; |
1301 | if(offset1 >= 0) offset1 += size1; |
1302 | offset2 += size1; |
1303 | }else{ |
1304 | size = -1; |
1305 | offset1 = -1; |
1306 | offset2 = -1; |
1307 | } |
1308 | } |
1309 | if(size == -1){ |
1310 | fld->field_fixed = 0; |
1311 | size = 0; |
1312 | }else fld->field_fixed = 1; |
1313 | }else if(fld->field_fixed == 0){ |
1314 | offset1 = offsetRoot; |
1315 | offset2 = 0; |
1316 | for(i=0;i<element_number;i++){ |
40331ba8 |
1317 | size=getFieldtypeSize(t,evT,offset1,offset2,fld->child[i],evD+offset2, trace); |
6cd62ccf |
1318 | offset1 += size; |
1319 | offset2 += size; |
1320 | } |
1321 | size = offset2; |
1322 | }else size = fld->field_size; |
1323 | } |
1324 | |
1325 | fld->offset_root = offsetRoot; |
1326 | fld->offset_parent = offsetParent; |
1327 | if(!evD){ |
1328 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
1329 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
1330 | } |
1331 | fld->field_size = size; |
1332 | |
1333 | return size; |
1334 | } |
1335 | |
6cd62ccf |
1336 | |
1337 | /***************************************************************************** |
1338 | *Function name |
1339 | * getIntNumber : get an integer number |
1340 | *Input params |
1341 | * size : the size of the integer |
1342 | * evD : the event data |
1343 | *Return value |
1344 | * int : an integer |
1345 | ****************************************************************************/ |
1346 | |
1347 | int getIntNumber(int size, void *evD) |
1348 | { |
cbd41522 |
1349 | gint64 i; |
1350 | if(size == 1) i = *(gint8 *)evD; |
1351 | else if(size == 2) i = *(gint16 *)evD; |
1352 | else if(size == 4) i = *(gint32 *)evD; |
1353 | else if(size == 8) i = *(gint64 *)evD; |
6cd62ccf |
1354 | |
1355 | return (int) i; |
1356 | } |
1357 | |
1358 | /***************************************************************************** |
1359 | *Function name |
1360 | * getDataEndianType : get the data type size and endian type of the local |
1361 | * machine |
1362 | *Input params |
1363 | * size : size of data type |
1364 | * endian : endian type, little or big |
1365 | ****************************************************************************/ |
1366 | |
963b5f2d |
1367 | void getDataEndianType(LttArchSize * size, LttArchEndian * endian) |
6cd62ccf |
1368 | { |
1369 | int i = 1; |
1370 | char c = (char) i; |
1371 | int sizeInt=sizeof(int), sizeLong=sizeof(long), sizePointer=sizeof(void *); |
1372 | |
1373 | if(c == 1) *endian = LTT_LITTLE_ENDIAN; |
1374 | else *endian = LTT_BIG_ENDIAN; |
1375 | |
1376 | if(sizeInt == 2 && sizeLong == 4 && sizePointer == 4) |
1377 | *size = LTT_LP32; |
1378 | else if(sizeInt == 4 && sizeLong == 4 && sizePointer == 4) |
1379 | *size = LTT_ILP32; |
1380 | else if(sizeInt == 4 && sizeLong == 8 && sizePointer == 8) |
1381 | *size = LTT_LP64; |
1382 | else if(sizeInt == 8 && sizeLong == 8 && sizePointer == 8) |
1383 | *size = LTT_ILP64; |
1384 | else *size = LTT_UNKNOWN; |
1385 | } |
1386 | |