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" |
a5dcde2f |
9 | #include <ltt/ltt.h> |
10 | #include "ltt-private.h" |
963b5f2d |
11 | #include <ltt/trace.h> |
a5dcde2f |
12 | #include <ltt/facility.h> |
6cd62ccf |
13 | |
963b5f2d |
14 | #define DIR_NAME_SIZE 256 |
6cd62ccf |
15 | |
16 | /* set the offset of the fields belonging to the event, |
17 | need the information of the archecture */ |
40331ba8 |
18 | void setFieldsOffset(LttTracefile *tf,LttEventType *evT,void *evD,LttTrace *t); |
6cd62ccf |
19 | |
20 | /* get the size of the field type according to the archtecture's |
21 | size and endian type(info of the archecture) */ |
40331ba8 |
22 | int getFieldtypeSize(LttTracefile * tf, LttEventType * evT, int offsetRoot, |
23 | int offsetParent, LttField *fld, void *evD, LttTrace* t); |
6cd62ccf |
24 | |
25 | /* read a fixed size or a block information from the file (fd) */ |
26 | int readFile(int fd, void * buf, size_t size, char * mesg); |
963b5f2d |
27 | int readBlock(LttTracefile * tf, int whichBlock); |
6cd62ccf |
28 | |
29 | /* calculate cycles per nsec for current block */ |
963b5f2d |
30 | void getCyclePerNsec(LttTracefile * t); |
6cd62ccf |
31 | |
32 | /* reinitialize the info of the block which is already in the buffer */ |
963b5f2d |
33 | void updateTracefile(LttTracefile * tf); |
6cd62ccf |
34 | |
35 | /* go to the next event */ |
963b5f2d |
36 | int skipEvent(LttTracefile * t); |
6cd62ccf |
37 | |
6cd62ccf |
38 | |
43da6a59 |
39 | /* Functions to parse system.xml file (using glib xml parser) */ |
40 | static void parser_start_element (GMarkupParseContext *context, |
41 | const gchar *element_name, |
42 | const gchar **attribute_names, |
43 | const gchar **attribute_values, |
44 | gpointer user_data, |
45 | GError **error) |
46 | { |
47 | int i=0; |
48 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
49 | if(strcmp("system", element_name)){ |
50 | g_warning("This is not system.xml file\n"); |
51 | exit(1); |
52 | } |
53 | |
54 | while(attribute_names[i]){ |
55 | if(strcmp("node_name", attribute_names[i])==0){ |
56 | des->node_name = g_strdup(attribute_values[i]); |
57 | }else if(strcmp("domainname", attribute_names[i])==0){ |
58 | des->domain_name = g_strdup(attribute_values[i]); |
59 | }else if(strcmp("cpu", attribute_names[i])==0){ |
60 | des->nb_cpu = atoi(attribute_values[i]); |
61 | }else if(strcmp("arch_size", attribute_names[i])==0){ |
62 | if(strcmp(attribute_values[i],"LP32") == 0) des->size = LTT_LP32; |
63 | else if(strcmp(attribute_values[i],"ILP32") == 0) des->size = LTT_ILP32; |
64 | else if(strcmp(attribute_values[i],"LP64") == 0) des->size = LTT_LP64; |
65 | else if(strcmp(attribute_values[i],"ILP64") == 0) des->size = LTT_ILP64; |
66 | else if(strcmp(attribute_values[i],"UNKNOWN") == 0) des->size = LTT_UNKNOWN; |
67 | }else if(strcmp("endian", attribute_names[i])==0){ |
68 | if(strcmp(attribute_values[i],"LITTLE_ENDIAN") == 0) |
69 | des->endian = LTT_LITTLE_ENDIAN; |
70 | else if(strcmp(attribute_values[i],"BIG_ENDIAN") == 0) |
71 | des->endian = LTT_BIG_ENDIAN; |
72 | }else if(strcmp("kernel_name", attribute_names[i])==0){ |
73 | des->kernel_name = g_strdup(attribute_values[i]); |
74 | }else if(strcmp("kernel_release", attribute_names[i])==0){ |
75 | des->kernel_release = g_strdup(attribute_values[i]); |
76 | }else if(strcmp("kernel_version", attribute_names[i])==0){ |
77 | des->kernel_version = g_strdup(attribute_values[i]); |
78 | }else if(strcmp("machine", attribute_names[i])==0){ |
79 | des->machine = g_strdup(attribute_values[i]); |
80 | }else if(strcmp("processor", attribute_names[i])==0){ |
81 | des->processor = g_strdup(attribute_values[i]); |
82 | }else if(strcmp("hardware_platform", attribute_names[i])==0){ |
83 | des->hardware_platform = g_strdup(attribute_values[i]); |
84 | }else if(strcmp("operating_system", attribute_names[i])==0){ |
85 | des->operating_system = g_strdup(attribute_values[i]); |
86 | }else if(strcmp("ltt_major_version", attribute_names[i])==0){ |
87 | des->ltt_major_version = atoi(attribute_values[i]); |
88 | }else if(strcmp("ltt_minor_version", attribute_names[i])==0){ |
89 | des->ltt_minor_version = atoi(attribute_values[i]); |
90 | }else if(strcmp("ltt_block_size", attribute_names[i])==0){ |
91 | des->ltt_block_size = atoi(attribute_values[i]); |
92 | }else{ |
93 | g_warning("Not a valid attribute\n"); |
94 | exit(1); |
95 | } |
96 | i++; |
97 | } |
98 | } |
99 | |
100 | static void parser_end_element (GMarkupParseContext *context, |
101 | const gchar *element_name, |
102 | gpointer user_data, |
103 | GError **error) |
104 | { |
105 | } |
106 | |
107 | static void parser_characters (GMarkupParseContext *context, |
108 | const gchar *text, |
109 | gsize text_len, |
110 | gpointer user_data, |
111 | GError **error) |
112 | { |
113 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
114 | des->description = g_strdup(text); |
115 | } |
116 | |
117 | |
6cd62ccf |
118 | /***************************************************************************** |
119 | *Function name |
963b5f2d |
120 | * ltt_tracefile_open : open a trace file, construct a LttTracefile |
6cd62ccf |
121 | *Input params |
963b5f2d |
122 | * t : the trace containing the tracefile |
123 | * fileName : path name of the trace file |
6cd62ccf |
124 | *Return value |
963b5f2d |
125 | * : a pointer to a tracefile |
6cd62ccf |
126 | ****************************************************************************/ |
127 | |
963b5f2d |
128 | LttTracefile* ltt_tracefile_open(LttTrace * t, char * fileName) |
6cd62ccf |
129 | { |
963b5f2d |
130 | LttTracefile * tf; |
131 | struct stat lTDFStat; /* Trace data file status */ |
132 | BlockStart a_block_start; |
6cd62ccf |
133 | |
963b5f2d |
134 | tf = g_new(LttTracefile, 1); |
6cd62ccf |
135 | |
136 | //open the file |
963b5f2d |
137 | tf->name = g_strdup(fileName); |
138 | tf->trace = t; |
6cd62ccf |
139 | tf->fd = open(fileName, O_RDONLY, 0); |
140 | if(tf->fd < 0){ |
141 | g_error("Unable to open input data file %s\n", fileName); |
142 | } |
143 | |
144 | // Get the file's status |
145 | if(fstat(tf->fd, &lTDFStat) < 0){ |
146 | g_error("Unable to get the status of the input data file %s\n", fileName); |
147 | } |
148 | |
149 | // Is the file large enough to contain a trace |
963b5f2d |
150 | if(lTDFStat.st_size < sizeof(BlockStart) + EVENT_HEADER_SIZE){ |
8710c6c7 |
151 | g_print("The input data file %s does not contain a trace\n", fileName); |
663bd9ff |
152 | g_free(tf->name); |
153 | close(tf->fd); |
154 | g_free(tf); |
8710c6c7 |
155 | return NULL; |
6cd62ccf |
156 | } |
157 | |
158 | //store the size of the file |
159 | tf->file_size = lTDFStat.st_size; |
963b5f2d |
160 | tf->block_size = t->system_description->ltt_block_size; |
161 | tf->block_number = tf->file_size / tf->block_size; |
162 | tf->which_block = 0; |
6cd62ccf |
163 | |
164 | //allocate memory to contain the info of a block |
963b5f2d |
165 | tf->buffer = (void *) g_new(char, t->system_description->ltt_block_size); |
6cd62ccf |
166 | |
963b5f2d |
167 | //read the first block |
168 | if(readBlock(tf,1)) exit(1); |
6cd62ccf |
169 | |
170 | return tf; |
171 | } |
172 | |
6cd62ccf |
173 | |
174 | /***************************************************************************** |
963b5f2d |
175 | *Open control and per cpu tracefiles |
6cd62ccf |
176 | ****************************************************************************/ |
177 | |
963b5f2d |
178 | void ltt_tracefile_open_cpu(LttTrace *t, char * tracefile_name) |
6cd62ccf |
179 | { |
963b5f2d |
180 | LttTracefile * tf; |
181 | tf = ltt_tracefile_open(t,tracefile_name); |
4a6c8e36 |
182 | if(!tf) return; |
963b5f2d |
183 | t->per_cpu_tracefile_number++; |
184 | g_ptr_array_add(t->per_cpu_tracefiles, tf); |
6cd62ccf |
185 | } |
186 | |
963b5f2d |
187 | void ltt_tracefile_open_control(LttTrace *t, char * control_name) |
6cd62ccf |
188 | { |
963b5f2d |
189 | LttTracefile * tf; |
190 | LttEvent * ev; |
191 | LttFacility * f; |
cbd41522 |
192 | guint16 evId; |
963b5f2d |
193 | void * pos; |
194 | FacilityLoad fLoad; |
195 | int i; |
196 | |
197 | tf = ltt_tracefile_open(t,control_name); |
8710c6c7 |
198 | if(!tf) return; |
963b5f2d |
199 | t->control_tracefile_number++; |
200 | g_ptr_array_add(t->control_tracefiles,tf); |
201 | |
202 | //parse facilities tracefile to get base_id |
542ceddd |
203 | if(strcmp(&control_name[strlen(control_name)-10],"facilities") ==0){ |
963b5f2d |
204 | while(1){ |
40331ba8 |
205 | ev = ltt_tracefile_read(tf); |
206 | if(!ev)return; // end of file |
207 | |
208 | if(ev->event_id == TRACE_FACILITY_LOAD){ |
209 | pos = ev->data; |
963b5f2d |
210 | fLoad.name = (char*)pos; |
47a166fc |
211 | fLoad.checksum = *(LttChecksum*)(pos + strlen(fLoad.name)); |
cbd41522 |
212 | fLoad.base_code = *(guint32 *)(pos + strlen(fLoad.name) + sizeof(LttChecksum)); |
963b5f2d |
213 | |
214 | for(i=0;i<t->facility_number;i++){ |
215 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
216 | if(strcmp(f->name,fLoad.name)==0 && fLoad.checksum==f->checksum){ |
217 | f->base_id = fLoad.base_code; |
218 | break; |
219 | } |
220 | } |
221 | if(i==t->facility_number) |
222 | g_error("Facility: %s, checksum: %d is not founded\n", |
223 | fLoad.name,fLoad.checksum); |
40331ba8 |
224 | }else if(ev->event_id == TRACE_BLOCK_START){ |
225 | continue; |
226 | }else if(ev->event_id == TRACE_BLOCK_END){ |
227 | break; |
963b5f2d |
228 | }else g_error("Not valid facilities trace file\n"); |
229 | } |
230 | } |
6cd62ccf |
231 | } |
232 | |
233 | /***************************************************************************** |
234 | *Function name |
963b5f2d |
235 | * ltt_tracefile_close: close a trace file, |
6cd62ccf |
236 | *Input params |
963b5f2d |
237 | * t : tracefile which will be closed |
6cd62ccf |
238 | ****************************************************************************/ |
239 | |
963b5f2d |
240 | void ltt_tracefile_close(LttTracefile *t) |
6cd62ccf |
241 | { |
963b5f2d |
242 | g_free(t->name); |
243 | g_free(t->buffer); |
663bd9ff |
244 | close(t->fd); |
963b5f2d |
245 | g_free(t); |
246 | } |
6cd62ccf |
247 | |
6cd62ccf |
248 | |
963b5f2d |
249 | /***************************************************************************** |
250 | *Get system information |
251 | ****************************************************************************/ |
252 | void getSystemInfo(LttSystemDescription* des, char * pathname) |
253 | { |
254 | FILE * fp; |
963b5f2d |
255 | char buf[DIR_NAME_SIZE]; |
256 | char description[4*DIR_NAME_SIZE]; |
43da6a59 |
257 | |
258 | GMarkupParseContext * context; |
259 | GError * error; |
260 | GMarkupParser markup_parser = |
261 | { |
262 | parser_start_element, |
263 | parser_end_element, |
264 | parser_characters, |
265 | NULL, /* passthrough */ |
266 | NULL /* error */ |
267 | }; |
963b5f2d |
268 | |
269 | fp = fopen(pathname,"r"); |
270 | if(!fp){ |
271 | g_error("Can not open file : %s\n", pathname); |
6cd62ccf |
272 | } |
963b5f2d |
273 | |
43da6a59 |
274 | context = g_markup_parse_context_new(&markup_parser, 0, des,NULL); |
6cd62ccf |
275 | |
43da6a59 |
276 | while(fgets(buf,DIR_NAME_SIZE, fp) != NULL){ |
277 | if(!g_markup_parse_context_parse(context, buf, DIR_NAME_SIZE, &error)){ |
278 | g_warning("Can not parse xml file: \n%s\n", error->message); |
279 | exit(1); |
280 | } |
963b5f2d |
281 | } |
963b5f2d |
282 | fclose(fp); |
6cd62ccf |
283 | } |
284 | |
285 | /***************************************************************************** |
963b5f2d |
286 | *The following functions get facility/tracefile information |
6cd62ccf |
287 | ****************************************************************************/ |
288 | |
963b5f2d |
289 | void getFacilityInfo(LttTrace *t, char* eventdefs) |
6cd62ccf |
290 | { |
963b5f2d |
291 | DIR * dir; |
292 | struct dirent *entry; |
293 | char * ptr; |
294 | int i,j; |
295 | LttFacility * f; |
296 | LttEventType * et; |
e8bb1a73 |
297 | char name[DIR_NAME_SIZE]; |
963b5f2d |
298 | |
299 | dir = opendir(eventdefs); |
300 | if(!dir) g_error("Can not open directory: %s\n", eventdefs); |
301 | |
302 | while((entry = readdir(dir)) != NULL){ |
303 | ptr = &entry->d_name[strlen(entry->d_name)-4]; |
304 | if(strcmp(ptr,".xml") != 0) continue; |
e8bb1a73 |
305 | strcpy(name,eventdefs); |
306 | strcat(name,entry->d_name); |
307 | ltt_facility_open(t,name); |
963b5f2d |
308 | } |
309 | closedir(dir); |
310 | |
963b5f2d |
311 | for(j=0;j<t->facility_number;j++){ |
8710c6c7 |
312 | f = (LttFacility*)g_ptr_array_index(t->facilities, j); |
963b5f2d |
313 | for(i=0; i<f->event_number; i++){ |
314 | et = f->events[i]; |
40331ba8 |
315 | setFieldsOffset(NULL, et, NULL, t); |
963b5f2d |
316 | } |
317 | } |
318 | } |
6cd62ccf |
319 | |
963b5f2d |
320 | void getControlFileInfo(LttTrace *t, char* control) |
6cd62ccf |
321 | { |
963b5f2d |
322 | DIR * dir; |
323 | struct dirent *entry; |
e8bb1a73 |
324 | char name[DIR_NAME_SIZE]; |
963b5f2d |
325 | |
326 | dir = opendir(control); |
327 | if(!dir) g_error("Can not open directory: %s\n", control); |
328 | |
329 | while((entry = readdir(dir)) != NULL){ |
8710c6c7 |
330 | if(strcmp(entry->d_name,"facilities") != 0 && |
331 | strcmp(entry->d_name,"interrupts") != 0 && |
963b5f2d |
332 | strcmp(entry->d_name,"processes") != 0) continue; |
333 | |
e8bb1a73 |
334 | strcpy(name,control); |
335 | strcat(name,entry->d_name); |
336 | ltt_tracefile_open_control(t,name); |
963b5f2d |
337 | } |
338 | closedir(dir); |
6cd62ccf |
339 | } |
340 | |
963b5f2d |
341 | void getCpuFileInfo(LttTrace *t, char* cpu) |
6cd62ccf |
342 | { |
963b5f2d |
343 | DIR * dir; |
344 | struct dirent *entry; |
e8bb1a73 |
345 | char name[DIR_NAME_SIZE]; |
963b5f2d |
346 | |
347 | dir = opendir(cpu); |
348 | if(!dir) g_error("Can not open directory: %s\n", cpu); |
349 | |
350 | while((entry = readdir(dir)) != NULL){ |
8710c6c7 |
351 | if(strcmp(entry->d_name,".") != 0 && |
963b5f2d |
352 | strcmp(entry->d_name,"..") != 0 ){ |
e8bb1a73 |
353 | strcpy(name,cpu); |
354 | strcat(name,entry->d_name); |
355 | ltt_tracefile_open_cpu(t,name); |
963b5f2d |
356 | }else continue; |
357 | } |
358 | closedir(dir); |
6cd62ccf |
359 | } |
360 | |
963b5f2d |
361 | /***************************************************************************** |
362 | *A trace is specified as a pathname to the directory containing all the |
363 | *associated data (control tracefiles, per cpu tracefiles, event |
364 | *descriptions...). |
365 | * |
366 | *When a trace is closed, all the associated facilities, types and fields |
367 | *are released as well. |
368 | ****************************************************************************/ |
6cd62ccf |
369 | |
9f797243 |
370 | void get_absolute_pathname(const char *pathname, char * abs_pathname) |
371 | { |
372 | char * ptr, *ptr1; |
373 | size_t size = DIR_NAME_SIZE; |
374 | abs_pathname[0] = '\0'; |
375 | if(!getcwd(abs_pathname, size)){ |
376 | g_warning("Can not get current working directory\n"); |
377 | strcat(abs_pathname, pathname); |
378 | return; |
379 | } |
380 | strcat(abs_pathname,"/"); |
381 | |
382 | ptr = (char*)pathname; |
383 | ptr1 = ptr + 1; |
384 | while(*ptr == '.' && *ptr1 == '.'){ |
385 | ptr += 3; |
386 | ptr1 = ptr + 1; |
387 | } |
388 | strcat(abs_pathname,ptr); |
389 | } |
390 | |
f7afe191 |
391 | LttTrace *ltt_trace_open(const char *pathname) |
6cd62ccf |
392 | { |
963b5f2d |
393 | LttTrace * t; |
394 | LttSystemDescription * sys_description; |
395 | char eventdefs[DIR_NAME_SIZE]; |
396 | char info[DIR_NAME_SIZE]; |
397 | char control[DIR_NAME_SIZE]; |
398 | char cpu[DIR_NAME_SIZE]; |
399 | char tmp[DIR_NAME_SIZE]; |
9f797243 |
400 | char abs_path[DIR_NAME_SIZE]; |
963b5f2d |
401 | gboolean has_slash = FALSE; |
402 | |
9f797243 |
403 | get_absolute_pathname(pathname, abs_path); |
404 | |
963b5f2d |
405 | //establish the pathname to different directories |
9f797243 |
406 | if(abs_path[strlen(abs_path)-1] == '/')has_slash = TRUE; |
407 | strcpy(eventdefs,abs_path); |
963b5f2d |
408 | if(!has_slash)strcat(eventdefs,"/"); |
409 | strcat(eventdefs,"eventdefs/"); |
410 | |
9f797243 |
411 | strcpy(info,abs_path); |
963b5f2d |
412 | if(!has_slash)strcat(info,"/"); |
413 | strcat(info,"info/"); |
414 | |
9f797243 |
415 | strcpy(control,abs_path); |
963b5f2d |
416 | if(!has_slash)strcat(control,"/"); |
417 | strcat(control,"control/"); |
418 | |
9f797243 |
419 | strcpy(cpu,abs_path); |
963b5f2d |
420 | if(!has_slash)strcat(cpu,"/"); |
421 | strcat(cpu,"cpu/"); |
422 | |
423 | //new trace |
424 | t = g_new(LttTrace, 1); |
425 | sys_description = g_new(LttSystemDescription, 1); |
9f797243 |
426 | t->pathname = g_strdup(abs_path); |
963b5f2d |
427 | t->facility_number = 0; |
428 | t->control_tracefile_number = 0; |
429 | t->per_cpu_tracefile_number = 0; |
430 | t->system_description = sys_description; |
431 | t->control_tracefiles = g_ptr_array_new(); |
432 | t->per_cpu_tracefiles = g_ptr_array_new(); |
433 | t->facilities = g_ptr_array_new(); |
434 | getDataEndianType(&(t->my_arch_size), &(t->my_arch_endian)); |
435 | |
436 | //get system description |
437 | strcpy(tmp,info); |
438 | strcat(tmp,"system.xml"); |
439 | getSystemInfo(sys_description, tmp); |
440 | |
b333a76b |
441 | //get facilities info |
442 | getFacilityInfo(t,eventdefs); |
443 | |
963b5f2d |
444 | //get control tracefile info |
445 | getControlFileInfo(t,control); |
446 | |
447 | //get cpu tracefile info |
448 | getCpuFileInfo(t,cpu); |
449 | |
963b5f2d |
450 | return t; |
6cd62ccf |
451 | } |
452 | |
49bf71b5 |
453 | char * ltt_trace_name(LttTrace *t) |
454 | { |
455 | return t->pathname; |
456 | } |
457 | |
458 | |
f7afe191 |
459 | /****************************************************************************** |
460 | * When we copy a trace, we want all the opening actions to happen again : |
461 | * the trace will be reopened and totally independant from the original. |
462 | * That's why we call ltt_trace_open. |
463 | *****************************************************************************/ |
464 | LttTrace *ltt_trace_copy(LttTrace *self) |
465 | { |
466 | return ltt_trace_open(self->pathname); |
467 | } |
468 | |
963b5f2d |
469 | void ltt_trace_close(LttTrace *t) |
6cd62ccf |
470 | { |
963b5f2d |
471 | int i; |
472 | LttTracefile * tf; |
473 | LttFacility * f; |
474 | |
475 | g_free(t->pathname); |
476 | |
477 | //free system_description |
478 | g_free(t->system_description->description); |
479 | g_free(t->system_description->node_name); |
480 | g_free(t->system_description->domain_name); |
481 | g_free(t->system_description->kernel_name); |
482 | g_free(t->system_description->kernel_release); |
483 | g_free(t->system_description->kernel_version); |
484 | g_free(t->system_description->machine); |
485 | g_free(t->system_description->processor); |
486 | g_free(t->system_description->hardware_platform); |
487 | g_free(t->system_description->operating_system); |
488 | g_free(t->system_description); |
489 | |
490 | //free control_tracefiles |
491 | for(i=0;i<t->control_tracefile_number;i++){ |
492 | tf = (LttTracefile*)g_ptr_array_index(t->control_tracefiles,i); |
493 | ltt_tracefile_close(tf); |
494 | } |
09ad4797 |
495 | g_ptr_array_free(t->control_tracefiles, TRUE); |
963b5f2d |
496 | |
497 | //free per_cpu_tracefiles |
498 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
499 | tf = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles,i); |
500 | ltt_tracefile_close(tf); |
501 | } |
09ad4797 |
502 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
963b5f2d |
503 | |
504 | //free facilities |
505 | for(i=0;i<t->facility_number;i++){ |
506 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
507 | ltt_facility_close(f); |
508 | } |
09ad4797 |
509 | g_ptr_array_free(t->facilities, TRUE); |
963b5f2d |
510 | |
511 | g_free(t); |
09ad4797 |
512 | |
513 | g_blow_chunks(); |
6cd62ccf |
514 | } |
515 | |
963b5f2d |
516 | |
6cd62ccf |
517 | /***************************************************************************** |
963b5f2d |
518 | *Get the system description of the trace |
6cd62ccf |
519 | ****************************************************************************/ |
520 | |
963b5f2d |
521 | LttSystemDescription *ltt_trace_system_description(LttTrace *t) |
6cd62ccf |
522 | { |
963b5f2d |
523 | return t->system_description; |
6cd62ccf |
524 | } |
525 | |
526 | /***************************************************************************** |
963b5f2d |
527 | * The following functions discover the facilities of the trace |
6cd62ccf |
528 | ****************************************************************************/ |
529 | |
963b5f2d |
530 | unsigned ltt_trace_facility_number(LttTrace *t) |
531 | { |
532 | return (unsigned)(t->facility_number); |
533 | } |
534 | |
535 | LttFacility *ltt_trace_facility_get(LttTrace *t, unsigned i) |
6cd62ccf |
536 | { |
963b5f2d |
537 | return (LttFacility*)g_ptr_array_index(t->facilities, i); |
6cd62ccf |
538 | } |
539 | |
540 | /***************************************************************************** |
541 | *Function name |
963b5f2d |
542 | * ltt_trace_facility_find : find facilities in the trace |
6cd62ccf |
543 | *Input params |
963b5f2d |
544 | * t : the trace |
545 | * name : facility name |
546 | *Output params |
547 | * position : position of the facility in the trace |
6cd62ccf |
548 | *Return value |
963b5f2d |
549 | * : the number of facilities |
6cd62ccf |
550 | ****************************************************************************/ |
551 | |
963b5f2d |
552 | unsigned ltt_trace_facility_find(LttTrace *t, char *name, unsigned *position) |
6cd62ccf |
553 | { |
963b5f2d |
554 | int i, count=0; |
555 | LttFacility * f; |
8a3005f3 |
556 | for(i=0;i<t->facility_number;i++){ |
963b5f2d |
557 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
558 | if(strcmp(f->name,name)==0){ |
559 | count++; |
560 | if(count==1) *position = i; |
561 | }else{ |
562 | if(count) break; |
563 | } |
564 | } |
565 | return count; |
6cd62ccf |
566 | } |
567 | |
568 | /***************************************************************************** |
963b5f2d |
569 | * Functions to discover all the event types in the trace |
6cd62ccf |
570 | ****************************************************************************/ |
571 | |
963b5f2d |
572 | unsigned ltt_trace_eventtype_number(LttTrace *t) |
6cd62ccf |
573 | { |
963b5f2d |
574 | int i; |
575 | unsigned count = 0; |
576 | LttFacility * f; |
b445142a |
577 | for(i=0;i<t->facility_number;i++){ |
963b5f2d |
578 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
579 | count += f->event_number; |
580 | } |
581 | return count; |
6cd62ccf |
582 | } |
583 | |
963b5f2d |
584 | LttFacility * ltt_trace_facility_by_id(LttTrace * trace, unsigned id) |
6cd62ccf |
585 | { |
963b5f2d |
586 | LttFacility * facility; |
587 | int i; |
588 | for(i=0;i<trace->facility_number;i++){ |
589 | facility = (LttFacility*) g_ptr_array_index(trace->facilities,i); |
590 | if(id >= facility->base_id && |
591 | id < facility->base_id + facility->event_number) |
592 | break; |
593 | } |
594 | if(i==trace->facility_number) return NULL; |
595 | else return facility; |
6cd62ccf |
596 | } |
597 | |
963b5f2d |
598 | LttEventType *ltt_trace_eventtype_get(LttTrace *t, unsigned evId) |
6cd62ccf |
599 | { |
963b5f2d |
600 | LttFacility * f; |
601 | f = ltt_trace_facility_by_id(t,evId); |
602 | if(!f) return NULL; |
603 | return f->events[evId - f->base_id]; |
6cd62ccf |
604 | } |
605 | |
606 | /***************************************************************************** |
963b5f2d |
607 | *There is one "per cpu" tracefile for each CPU, numbered from 0 to |
608 | *the maximum number of CPU in the system. When the number of CPU installed |
609 | *is less than the maximum, some positions are unused. There are also a |
610 | *number of "control" tracefiles (facilities, interrupts...). |
6cd62ccf |
611 | ****************************************************************************/ |
963b5f2d |
612 | unsigned ltt_trace_control_tracefile_number(LttTrace *t) |
6cd62ccf |
613 | { |
963b5f2d |
614 | return t->control_tracefile_number; |
6cd62ccf |
615 | } |
616 | |
963b5f2d |
617 | unsigned ltt_trace_per_cpu_tracefile_number(LttTrace *t) |
6cd62ccf |
618 | { |
963b5f2d |
619 | return t->per_cpu_tracefile_number; |
6cd62ccf |
620 | } |
621 | |
622 | /***************************************************************************** |
963b5f2d |
623 | *It is possible to search for the tracefiles by name or by CPU position. |
624 | *The index within the tracefiles of the same type is returned if found |
625 | *and a negative value otherwise. |
6cd62ccf |
626 | ****************************************************************************/ |
627 | |
963b5f2d |
628 | int ltt_trace_control_tracefile_find(LttTrace *t, char *name) |
6cd62ccf |
629 | { |
963b5f2d |
630 | LttTracefile * tracefile; |
631 | int i; |
632 | for(i=0;i<t->control_tracefile_number;i++){ |
633 | tracefile = (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i); |
634 | if(strcmp(tracefile->name, name)==0)break; |
635 | } |
636 | if(i == t->control_tracefile_number) return -1; |
637 | return i; |
6cd62ccf |
638 | } |
639 | |
963b5f2d |
640 | int ltt_trace_per_cpu_tracefile_find(LttTrace *t, unsigned i) |
6cd62ccf |
641 | { |
963b5f2d |
642 | LttTracefile * tracefile; |
643 | int j, name; |
644 | for(j=0;j<t->per_cpu_tracefile_number;j++){ |
645 | tracefile = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, j); |
646 | name = atoi(tracefile->name); |
647 | if(name == (int)i)break; |
648 | } |
649 | if(j == t->per_cpu_tracefile_number) return -1; |
650 | return j; |
6cd62ccf |
651 | } |
652 | |
653 | /***************************************************************************** |
963b5f2d |
654 | *Get a specific tracefile |
6cd62ccf |
655 | ****************************************************************************/ |
656 | |
963b5f2d |
657 | LttTracefile *ltt_trace_control_tracefile_get(LttTrace *t, unsigned i) |
6cd62ccf |
658 | { |
5598cfe3 |
659 | return (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i); |
963b5f2d |
660 | } |
661 | |
662 | LttTracefile *ltt_trace_per_cpu_tracefile_get(LttTrace *t, unsigned i) |
663 | { |
664 | return (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, i); |
6cd62ccf |
665 | } |
666 | |
487ad181 |
667 | /***************************************************************************** |
668 | * Get the start time and end time of the trace |
669 | ****************************************************************************/ |
670 | |
671 | void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end) |
672 | { |
673 | LttTime startSmall, startTmp, endBig, endTmp; |
674 | int i, j=0; |
675 | LttTracefile * tf; |
676 | |
677 | for(i=0;i<t->control_tracefile_number;i++){ |
678 | tf = g_ptr_array_index(t->control_tracefiles, i); |
679 | readBlock(tf,1); |
680 | startTmp = tf->a_block_start->time; |
681 | readBlock(tf,tf->block_number); |
682 | endTmp = tf->a_block_end->time; |
683 | if(i==0){ |
684 | startSmall = startTmp; |
685 | endBig = endTmp; |
686 | j = 1; |
687 | continue; |
688 | } |
308711e5 |
689 | if(ltt_time_compare(startSmall,startTmp) > 0) startSmall = startTmp; |
690 | if(ltt_time_compare(endBig,endTmp) < 0) endBig = endTmp; |
487ad181 |
691 | } |
692 | |
693 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
694 | tf = g_ptr_array_index(t->per_cpu_tracefiles, i); |
695 | readBlock(tf,1); |
696 | startTmp = tf->a_block_start->time; |
697 | readBlock(tf,tf->block_number); |
698 | endTmp = tf->a_block_end->time; |
699 | if(j == 0 && i==0){ |
700 | startSmall = startTmp; |
701 | endBig = endTmp; |
702 | continue; |
703 | } |
308711e5 |
704 | if(ltt_time_compare(startSmall,startTmp) > 0) startSmall = startTmp; |
705 | if(ltt_time_compare(endBig,endTmp) < 0) endBig = endTmp; |
487ad181 |
706 | } |
707 | |
708 | *start = startSmall; |
709 | *end = endBig; |
710 | } |
711 | |
712 | |
6cd62ccf |
713 | /***************************************************************************** |
963b5f2d |
714 | *Get the name of a tracefile |
6cd62ccf |
715 | ****************************************************************************/ |
716 | |
963b5f2d |
717 | char *ltt_tracefile_name(LttTracefile *tf) |
6cd62ccf |
718 | { |
963b5f2d |
719 | return tf->name; |
6cd62ccf |
720 | } |
721 | |
80da81ad |
722 | /***************************************************************************** |
723 | * Get the number of blocks in the tracefile |
724 | ****************************************************************************/ |
725 | |
726 | unsigned ltt_tracefile_block_number(LttTracefile *tf) |
727 | { |
728 | return tf->block_number; |
729 | } |
730 | |
6cd62ccf |
731 | /***************************************************************************** |
732 | *Function name |
733 | * ltt_tracefile_seek_time: seek to the first event of the trace with time |
734 | * larger or equal to time |
735 | *Input params |
736 | * t : tracefile |
737 | * time : criteria of the time |
6cd62ccf |
738 | ****************************************************************************/ |
caf7a67a |
739 | void ltt_tracefile_find_time_block(LttTracefile *t, LttTime time, |
740 | int start_block, int end_block) |
741 | { |
742 | int err, tmp_block, s, e; |
743 | int headTime; |
744 | int tailTime; |
745 | |
746 | err=readBlock(t,start_block); |
747 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
748 | if(start_block == end_block)return; |
749 | |
750 | tailTime = ltt_time_compare(t->a_block_end->time, time); |
751 | if(tailTime >= 0) return; |
752 | |
753 | err=readBlock(t,end_block); |
754 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
755 | if(start_block+1 == end_block)return; |
756 | |
757 | headTime = ltt_time_compare(t->a_block_start->time, time); |
758 | if(headTime <= 0 ) return; |
759 | |
760 | tmp_block = (end_block + start_block)/2; |
761 | err=readBlock(t,tmp_block); |
762 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
763 | |
764 | headTime = ltt_time_compare(t->a_block_start->time, time); |
765 | tailTime = ltt_time_compare(t->a_block_end->time, time); |
766 | if(headTime <= 0 && tailTime >= 0) return; |
767 | |
768 | if(headTime > 0){ |
769 | s = start_block + 1; |
770 | e = tmp_block - 1; |
771 | if(s <= e) |
772 | ltt_tracefile_find_time_block(t, time, s, e); |
773 | else return; |
774 | } |
775 | |
776 | if(tailTime < 0){ |
777 | s = tmp_block + 1; |
778 | e = end_block - 1; |
779 | if(s <= e) |
780 | ltt_tracefile_find_time_block(t, time, s, e); |
781 | else return; |
782 | } |
783 | } |
784 | |
785 | void ltt_tracefile_backward_find_time_block(LttTracefile *t, LttTime time) |
786 | { |
787 | int t_time, h_time, err; |
788 | err=readBlock(t,t->which_block-1); |
789 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
790 | h_time = ltt_time_compare(t->a_block_start->time, time); |
791 | t_time = ltt_time_compare(t->a_block_end->time, time); |
792 | if(h_time == 0){ |
793 | int tmp; |
794 | if(t->which_block == 1) return; |
795 | err=readBlock(t,t->which_block-1); |
796 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
797 | tmp = ltt_time_compare(t->a_block_end->time, time); |
798 | if(tmp == 0) return ltt_tracefile_seek_time(t, time); |
799 | err=readBlock(t,t->which_block+1); |
800 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
801 | }else if(h_time > 0){ |
802 | ltt_tracefile_find_time_block(t, time, 1, t->which_block); |
803 | return ltt_tracefile_seek_time(t, time) ; |
804 | }else{ |
805 | if(t_time >= 0) return ltt_tracefile_seek_time(t, time); |
806 | err=readBlock(t,t->which_block+1); |
807 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
808 | } |
809 | } |
6cd62ccf |
810 | |
963b5f2d |
811 | void ltt_tracefile_seek_time(LttTracefile *t, LttTime time) |
6cd62ccf |
812 | { |
813 | int err; |
963b5f2d |
814 | LttTime lttTime; |
308711e5 |
815 | int headTime = ltt_time_compare(t->a_block_start->time, time); |
816 | int tailTime = ltt_time_compare(t->a_block_end->time, time); |
62e55dd6 |
817 | LttEvent * ev; |
818 | |
6cd62ccf |
819 | if(headTime < 0 && tailTime > 0){ |
308711e5 |
820 | if(ltt_time_compare(t->a_block_end->time, t->current_event_time) !=0) { |
db55eaae |
821 | lttTime = getEventTime(t); |
308711e5 |
822 | err = ltt_time_compare(lttTime, time); |
db55eaae |
823 | if(err > 0){ |
308711e5 |
824 | if(t->which_event==2 || (&t->prev_event_time,&time)<0){ |
1a3b8cbd |
825 | return; |
db55eaae |
826 | }else{ |
827 | updateTracefile(t); |
828 | return ltt_tracefile_seek_time(t, time); |
1a3b8cbd |
829 | } |
db55eaae |
830 | }else if(err < 0){ |
831 | while(1){ |
832 | ev = ltt_tracefile_read(t); |
833 | if(ev == NULL){ |
834 | g_print("End of file\n"); |
835 | return; |
836 | } |
837 | lttTime = getEventTime(t); |
308711e5 |
838 | err = ltt_time_compare(lttTime, time); |
db55eaae |
839 | if(err >= 0)return; |
840 | } |
841 | }else return; |
842 | }else{//we are at the end of the block |
843 | updateTracefile(t); |
844 | return ltt_tracefile_seek_time(t, time); |
845 | } |
e37c1372 |
846 | }else if(headTime >= 0){ |
6cd62ccf |
847 | if(t->which_block == 1){ |
848 | updateTracefile(t); |
849 | }else{ |
1ee6a9af |
850 | if(ltt_time_compare(t->prev_block_end_time, time) >= 0 || |
851 | (t->prev_block_end_time.tv_sec == 0 && |
852 | t->prev_block_end_time.tv_nsec == 0 )){ |
caf7a67a |
853 | ltt_tracefile_backward_find_time_block(t, time); |
6cd62ccf |
854 | }else{ |
855 | updateTracefile(t); |
856 | } |
857 | } |
40331ba8 |
858 | }else if(tailTime < 0){ |
6cd62ccf |
859 | if(t->which_block != t->block_number){ |
caf7a67a |
860 | ltt_tracefile_find_time_block(t, time, t->which_block+1, t->block_number); |
861 | return ltt_tracefile_seek_time(t, time); |
963b5f2d |
862 | }else { |
a8c0f09d |
863 | t->cur_event_pos = t->buffer + t->block_size; |
864 | g_print("End of file\n"); |
963b5f2d |
865 | return; |
866 | } |
40331ba8 |
867 | }else if(tailTime == 0){ |
e37c1372 |
868 | t->cur_event_pos = t->last_event_pos; |
62e55dd6 |
869 | t->current_event_time = time; |
870 | t->cur_heart_beat_number = 0; |
871 | t->prev_event_time.tv_sec = 0; |
872 | t->prev_event_time.tv_nsec = 0; |
40331ba8 |
873 | return; |
6cd62ccf |
874 | } |
6cd62ccf |
875 | } |
876 | |
80da81ad |
877 | /***************************************************************************** |
878 | * Seek to the first event with position equal or larger to ep |
879 | ****************************************************************************/ |
880 | |
881 | void ltt_tracefile_seek_position(LttTracefile *t, LttEventPosition *ep) |
882 | { |
883 | //if we are at the right place, just return |
884 | if(t->which_block == ep->block_num && t->which_event == ep->event_num) |
885 | return; |
886 | |
887 | if(t->which_block == ep->block_num) updateTracefile(t); |
888 | else readBlock(t,ep->block_num); |
889 | |
890 | //event offset is availiable |
891 | if(ep->old_position){ |
892 | t->cur_heart_beat_number = ep->heart_beat_number; |
893 | t->cur_event_pos = t->buffer + ep->event_offset; |
894 | return; |
895 | } |
896 | |
897 | //only block number and event index are availiable |
898 | while(t->which_event < ep->event_num) ltt_tracefile_read(t); |
899 | |
900 | return; |
901 | } |
902 | |
6cd62ccf |
903 | /***************************************************************************** |
904 | *Function name |
40331ba8 |
905 | * ltt_tracefile_read : read the current event, set the pointer to the next |
6cd62ccf |
906 | *Input params |
907 | * t : tracefile |
908 | *Return value |
963b5f2d |
909 | * LttEvent * : an event to be processed |
6cd62ccf |
910 | ****************************************************************************/ |
911 | |
963b5f2d |
912 | LttEvent *ltt_tracefile_read(LttTracefile *t) |
6cd62ccf |
913 | { |
7525f9e5 |
914 | LttEvent * lttEvent = &t->an_event; |
963b5f2d |
915 | int err; |
6cd62ccf |
916 | |
bdc36259 |
917 | if(t->cur_event_pos == t->buffer + t->block_size){ |
918 | if(t->which_block == t->block_number){ |
bdc36259 |
919 | return NULL; |
920 | } |
921 | err = readBlock(t, t->which_block + 1); |
922 | if(err)g_error("Can not read tracefile"); |
923 | } |
924 | |
cbd41522 |
925 | lttEvent->event_id = (int)(*(guint16 *)(t->cur_event_pos)); |
963b5f2d |
926 | if(lttEvent->event_id == TRACE_TIME_HEARTBEAT) |
927 | t->cur_heart_beat_number++; |
6cd62ccf |
928 | |
40331ba8 |
929 | t->prev_event_time = t->current_event_time; |
62e55dd6 |
930 | // t->current_event_time = getEventTime(t); |
6cd62ccf |
931 | |
cbd41522 |
932 | lttEvent->time_delta = *(guint32 *)(t->cur_event_pos + EVENT_ID_SIZE); |
963b5f2d |
933 | lttEvent->event_time = t->current_event_time; |
934 | |
6cd62ccf |
935 | lttEvent->tracefile = t; |
936 | lttEvent->data = t->cur_event_pos + EVENT_HEADER_SIZE; |
908f42fa |
937 | lttEvent->which_block = t->which_block; |
938 | lttEvent->which_event = t->which_event; |
6cd62ccf |
939 | |
40331ba8 |
940 | //update the fields of the current event and go to the next event |
941 | err = skipEvent(t); |
40331ba8 |
942 | if(err == ERANGE) g_error("event id is out of range\n"); |
40331ba8 |
943 | |
e4eced0f |
944 | lttEvent->event_cycle_count = t->cur_cycle_count; |
945 | |
6cd62ccf |
946 | return lttEvent; |
947 | } |
948 | |
949 | /**************************************************************************** |
950 | *Function name |
951 | * readFile : wrap function to read from a file |
952 | *Input Params |
953 | * fd : file descriptor |
954 | * buf : buf to contain the content |
955 | * size : number of bytes to be read |
956 | * mesg : message to be printed if some thing goes wrong |
957 | *return value |
958 | * 0 : success |
959 | * EIO : can not read from the file |
960 | ****************************************************************************/ |
961 | |
962 | int readFile(int fd, void * buf, size_t size, char * mesg) |
963 | { |
964 | ssize_t nbBytes; |
965 | nbBytes = read(fd, buf, size); |
966 | if(nbBytes != size){ |
967 | printf("%s\n",mesg); |
968 | return EIO; |
969 | } |
970 | return 0; |
971 | } |
972 | |
973 | /**************************************************************************** |
974 | *Function name |
975 | * readBlock : read a block from the file |
976 | *Input Params |
977 | * lttdes : ltt trace file |
978 | * whichBlock : the block which will be read |
979 | *return value |
980 | * 0 : success |
981 | * EINVAL : lseek fail |
982 | * EIO : can not read from the file |
983 | ****************************************************************************/ |
984 | |
963b5f2d |
985 | int readBlock(LttTracefile * tf, int whichBlock) |
6cd62ccf |
986 | { |
987 | off_t nbBytes; |
cbd41522 |
988 | guint32 lostSize; |
6cd62ccf |
989 | |
990 | if(whichBlock - tf->which_block == 1 && tf->which_block != 0){ |
963b5f2d |
991 | tf->prev_block_end_time = tf->a_block_end->time; |
40331ba8 |
992 | tf->prev_event_time = tf->a_block_end->time; |
6cd62ccf |
993 | }else{ |
994 | tf->prev_block_end_time.tv_sec = 0; |
995 | tf->prev_block_end_time.tv_nsec = 0; |
40331ba8 |
996 | tf->prev_event_time.tv_sec = 0; |
997 | tf->prev_event_time.tv_nsec = 0; |
6cd62ccf |
998 | } |
6cd62ccf |
999 | |
963b5f2d |
1000 | nbBytes=lseek(tf->fd,(off_t)((whichBlock-1)*tf->block_size), SEEK_SET); |
6cd62ccf |
1001 | if(nbBytes == -1) return EINVAL; |
1002 | |
963b5f2d |
1003 | if(readFile(tf->fd,tf->buffer,tf->block_size,"Unable to read a block")) |
1004 | return EIO; |
6cd62ccf |
1005 | |
963b5f2d |
1006 | tf->a_block_start=(BlockStart *) (tf->buffer + EVENT_HEADER_SIZE); |
cbd41522 |
1007 | lostSize = *(guint32 *)(tf->buffer + tf->block_size - sizeof(guint32)); |
963b5f2d |
1008 | tf->a_block_end=(BlockEnd *)(tf->buffer + tf->block_size - |
1009 | lostSize + EVENT_HEADER_SIZE); |
e37c1372 |
1010 | tf->last_event_pos = tf->buffer + tf->block_size - lostSize; |
6cd62ccf |
1011 | |
6cd62ccf |
1012 | tf->which_block = whichBlock; |
963b5f2d |
1013 | tf->which_event = 1; |
40331ba8 |
1014 | tf->cur_event_pos = tf->buffer;//the beginning of the block, block start ev |
6cd62ccf |
1015 | tf->cur_heart_beat_number = 0; |
963b5f2d |
1016 | |
6cd62ccf |
1017 | getCyclePerNsec(tf); |
1018 | |
62e55dd6 |
1019 | tf->current_event_time = getEventTime(tf); |
40331ba8 |
1020 | |
6cd62ccf |
1021 | return 0; |
1022 | } |
1023 | |
1024 | /***************************************************************************** |
1025 | *Function name |
1026 | * updateTracefile : reinitialize the info of the block which is already |
1027 | * in the buffer |
1028 | *Input params |
1029 | * tf : tracefile |
1030 | ****************************************************************************/ |
1031 | |
963b5f2d |
1032 | void updateTracefile(LttTracefile * tf) |
6cd62ccf |
1033 | { |
963b5f2d |
1034 | tf->which_event = 1; |
40331ba8 |
1035 | tf->cur_event_pos = tf->buffer; |
62e55dd6 |
1036 | tf->current_event_time = getEventTime(tf); |
6cd62ccf |
1037 | tf->cur_heart_beat_number = 0; |
1038 | |
1039 | tf->prev_event_time.tv_sec = 0; |
1040 | tf->prev_event_time.tv_nsec = 0; |
1041 | } |
1042 | |
1043 | /***************************************************************************** |
1044 | *Function name |
1045 | * skipEvent : go to the next event, update the fields of the current event |
1046 | *Input params |
1047 | * t : tracefile |
1048 | *return value |
1049 | * 0 : success |
6cd62ccf |
1050 | * ERANGE : event id is out of range |
1051 | ****************************************************************************/ |
1052 | |
963b5f2d |
1053 | int skipEvent(LttTracefile * t) |
6cd62ccf |
1054 | { |
1055 | int evId, err; |
1056 | void * evData; |
963b5f2d |
1057 | LttEventType * evT; |
1058 | LttField * rootFld; |
6cd62ccf |
1059 | |
cbd41522 |
1060 | evId = (int)(*(guint16 *)(t->cur_event_pos)); |
6cd62ccf |
1061 | evData = t->cur_event_pos + EVENT_HEADER_SIZE; |
6cd62ccf |
1062 | |
908f42fa |
1063 | evT = ltt_trace_eventtype_get(t->trace,(unsigned)evId); |
47a166fc |
1064 | |
908f42fa |
1065 | if(evT) rootFld = evT->root_field; |
1066 | else return ERANGE; |
6cd62ccf |
1067 | |
908f42fa |
1068 | if(rootFld){ |
1069 | //event has string/sequence or the last event is not the same event |
1070 | if((evT->latest_block!=t->which_block || evT->latest_event!=t->which_event) |
1071 | && rootFld->field_fixed == 0){ |
1072 | setFieldsOffset(t, evT, evData, t->trace); |
47a166fc |
1073 | } |
908f42fa |
1074 | t->cur_event_pos += EVENT_HEADER_SIZE + rootFld->field_size; |
1075 | }else t->cur_event_pos += EVENT_HEADER_SIZE; |
1076 | |
1077 | evT->latest_block = t->which_block; |
1078 | evT->latest_event = t->which_event; |
1079 | |
6cd62ccf |
1080 | //the next event is in the next block |
963b5f2d |
1081 | if(evId == TRACE_BLOCK_END){ |
bdc36259 |
1082 | t->cur_event_pos = t->buffer + t->block_size; |
6cd62ccf |
1083 | }else{ |
1084 | t->which_event++; |
62e55dd6 |
1085 | t->current_event_time = getEventTime(t); |
6cd62ccf |
1086 | } |
1087 | |
1088 | return 0; |
1089 | } |
1090 | |
1091 | /***************************************************************************** |
1092 | *Function name |
1093 | * getCyclePerNsec : calculate cycles per nsec for current block |
1094 | *Input Params |
1095 | * t : tracefile |
1096 | ****************************************************************************/ |
1097 | |
963b5f2d |
1098 | void getCyclePerNsec(LttTracefile * t) |
6cd62ccf |
1099 | { |
963b5f2d |
1100 | LttTime lBufTotalTime; /* Total time for this buffer */ |
1101 | LttCycleCount lBufTotalNSec; /* Total time for this buffer in nsecs */ |
1102 | LttCycleCount lBufTotalCycle;/* Total cycles for this buffer */ |
6cd62ccf |
1103 | |
1104 | /* Calculate the total time for this buffer */ |
308711e5 |
1105 | lBufTotalTime = ltt_time_sub(t->a_block_end->time, t->a_block_start->time); |
6cd62ccf |
1106 | |
1107 | /* Calculate the total cycles for this bufffer */ |
e4eced0f |
1108 | lBufTotalCycle = t->a_block_end->cycle_count; |
1109 | lBufTotalCycle -= t->a_block_start->cycle_count; |
6cd62ccf |
1110 | |
1111 | /* Convert the total time to nsecs */ |
e4eced0f |
1112 | lBufTotalNSec = lBufTotalTime.tv_sec; |
308711e5 |
1113 | lBufTotalNSec *= NANOSECONDS_PER_SECOND; |
e4eced0f |
1114 | lBufTotalNSec += lBufTotalTime.tv_nsec; |
6cd62ccf |
1115 | |
1116 | t->cycle_per_nsec = (double)lBufTotalCycle / (double)lBufTotalNSec; |
1117 | } |
1118 | |
1119 | /**************************************************************************** |
1120 | *Function name |
1121 | * getEventTime : obtain the time of an event |
1122 | *Input params |
1123 | * tf : tracefile |
1124 | *Return value |
963b5f2d |
1125 | * LttTime : the time of the event |
6cd62ccf |
1126 | ****************************************************************************/ |
1127 | |
963b5f2d |
1128 | LttTime getEventTime(LttTracefile * tf) |
6cd62ccf |
1129 | { |
963b5f2d |
1130 | LttTime time; |
1131 | LttCycleCount cycle_count; // cycle count for the current event |
1132 | LttCycleCount lEventTotalCycle; // Total cycles from start for event |
1133 | double lEventNSec; // Total usecs from start for event |
1134 | LttTime lTimeOffset; // Time offset in struct LttTime |
cbd41522 |
1135 | guint16 evId; |
1136 | gint64 nanoSec, tmpCycleCount = (((guint64)1)<<32); |
e4eced0f |
1137 | |
cbd41522 |
1138 | evId = *(guint16 *)tf->cur_event_pos; |
e4eced0f |
1139 | if(evId == TRACE_BLOCK_START){ |
dd691a2e |
1140 | tf->count = 0; |
1141 | tf->pre_cycle_count = 0; |
e4eced0f |
1142 | tf->cur_cycle_count = tf->a_block_start->cycle_count; |
40331ba8 |
1143 | return tf->a_block_start->time; |
e4eced0f |
1144 | }else if(evId == TRACE_BLOCK_END){ |
dd691a2e |
1145 | tf->count = 0; |
1146 | tf->pre_cycle_count = 0; |
e4eced0f |
1147 | tf->cur_cycle_count = tf->a_block_end->cycle_count; |
40331ba8 |
1148 | return tf->a_block_end->time; |
e4eced0f |
1149 | } |
40331ba8 |
1150 | |
e4eced0f |
1151 | // Calculate total time in cycles from start of buffer for this event |
cbd41522 |
1152 | cycle_count = (LttCycleCount)*(guint32 *)(tf->cur_event_pos + EVENT_ID_SIZE); |
e4eced0f |
1153 | |
dd691a2e |
1154 | if(cycle_count < tf->pre_cycle_count)tf->count++; |
1155 | tf->pre_cycle_count = cycle_count; |
1156 | cycle_count += tmpCycleCount * tf->count; |
e4eced0f |
1157 | |
dd691a2e |
1158 | if(tf->cur_heart_beat_number > tf->count) |
1159 | cycle_count += tmpCycleCount * (tf->cur_heart_beat_number - tf->count); |
e4eced0f |
1160 | |
1161 | tf->cur_cycle_count = cycle_count; |
1162 | |
1163 | lEventTotalCycle = cycle_count; |
1164 | lEventTotalCycle -= tf->a_block_start->cycle_count; |
6cd62ccf |
1165 | |
963b5f2d |
1166 | // Convert it to nsecs |
6cd62ccf |
1167 | lEventNSec = lEventTotalCycle / tf->cycle_per_nsec; |
e4eced0f |
1168 | nanoSec = lEventNSec; |
1169 | |
963b5f2d |
1170 | // Determine offset in struct LttTime |
308711e5 |
1171 | lTimeOffset.tv_nsec = nanoSec % NANOSECONDS_PER_SECOND; |
1172 | lTimeOffset.tv_sec = nanoSec / NANOSECONDS_PER_SECOND; |
6cd62ccf |
1173 | |
308711e5 |
1174 | time = ltt_time_add(tf->a_block_start->time, lTimeOffset); |
e4eced0f |
1175 | |
6cd62ccf |
1176 | return time; |
1177 | } |
1178 | |
1179 | /***************************************************************************** |
1180 | *Function name |
1181 | * setFieldsOffset : set offset of the fields |
1182 | *Input params |
1183 | * tracefile : opened trace file |
1184 | * evT : the event type |
1185 | * evD : event data, it may be NULL |
1186 | ****************************************************************************/ |
1187 | |
40331ba8 |
1188 | void setFieldsOffset(LttTracefile *tf,LttEventType *evT,void *evD,LttTrace* t) |
6cd62ccf |
1189 | { |
963b5f2d |
1190 | LttField * rootFld = evT->root_field; |
6cd62ccf |
1191 | // rootFld->base_address = evD; |
1192 | |
8710c6c7 |
1193 | if(rootFld) |
1194 | rootFld->field_size = getFieldtypeSize(tf, evT, 0,0,rootFld, evD,t); |
6cd62ccf |
1195 | } |
1196 | |
1197 | /***************************************************************************** |
1198 | *Function name |
1199 | * getFieldtypeSize: get the size of the field type (primitive type) |
1200 | *Input params |
1201 | * tracefile : opened trace file |
1202 | * evT : event type |
1203 | * offsetRoot : offset from the root |
1204 | * offsetParent : offset from the parrent |
1205 | * fld : field |
1206 | * evD : event data, it may be NULL |
1207 | *Return value |
1208 | * int : size of the field |
1209 | ****************************************************************************/ |
1210 | |
963b5f2d |
1211 | int getFieldtypeSize(LttTracefile * t, LttEventType * evT, int offsetRoot, |
40331ba8 |
1212 | int offsetParent, LttField * fld, void *evD, LttTrace *trace) |
6cd62ccf |
1213 | { |
1214 | int size, size1, element_number, i, offset1, offset2; |
963b5f2d |
1215 | LttType * type = fld->field_type; |
6cd62ccf |
1216 | |
8710c6c7 |
1217 | if(t){ |
963b5f2d |
1218 | if(evT->latest_block==t->which_block && evT->latest_event==t->which_event){ |
1219 | return fld->field_size; |
1220 | } |
1221 | } |
6cd62ccf |
1222 | |
1223 | if(fld->field_fixed == 1){ |
1224 | if(fld == evT->root_field) return fld->field_size; |
1225 | } |
1226 | |
1227 | if(type->type_class != LTT_STRUCT && type->type_class != LTT_ARRAY && |
1228 | type->type_class != LTT_SEQUENCE && type->type_class != LTT_STRING){ |
1229 | if(fld->field_fixed == -1){ |
40331ba8 |
1230 | size = (int) ltt_type_size(trace, type); |
6cd62ccf |
1231 | fld->field_fixed = 1; |
1232 | }else size = fld->field_size; |
1233 | |
1234 | }else if(type->type_class == LTT_ARRAY){ |
1235 | element_number = (int) type->element_number; |
1236 | if(fld->field_fixed == -1){ |
40331ba8 |
1237 | size = getFieldtypeSize(t, evT, offsetRoot,0,fld->child[0], NULL, trace); |
6cd62ccf |
1238 | if(size == 0){ //has string or sequence |
1239 | fld->field_fixed = 0; |
1240 | }else{ |
1241 | fld->field_fixed = 1; |
1242 | size *= element_number; |
1243 | } |
1244 | }else if(fld->field_fixed == 0){// has string or sequence |
1245 | size = 0; |
1246 | for(i=0;i<element_number;i++){ |
1247 | size += getFieldtypeSize(t, evT, offsetRoot+size,size, |
40331ba8 |
1248 | fld->child[0], evD+size, trace); |
6cd62ccf |
1249 | } |
1250 | }else size = fld->field_size; |
1251 | |
1252 | }else if(type->type_class == LTT_SEQUENCE){ |
40331ba8 |
1253 | size1 = (int) ltt_type_size(trace, type); |
6cd62ccf |
1254 | if(fld->field_fixed == -1){ |
908f42fa |
1255 | fld->sequ_number_size = size1; |
6cd62ccf |
1256 | fld->field_fixed = 0; |
40331ba8 |
1257 | size = getFieldtypeSize(t, evT, offsetRoot,0,fld->child[0], NULL, trace); |
6cd62ccf |
1258 | fld->element_size = size; |
1259 | }else{//0: sequence |
1260 | element_number = getIntNumber(size1,evD); |
1261 | type->element_number = element_number; |
1262 | if(fld->element_size > 0){ |
1263 | size = element_number * fld->element_size; |
1264 | }else{//sequence has string or sequence |
1265 | size = 0; |
1266 | for(i=0;i<element_number;i++){ |
1267 | size += getFieldtypeSize(t, evT, offsetRoot+size+size1,size+size1, |
40331ba8 |
1268 | fld->child[0], evD+size+size1, trace); |
6cd62ccf |
1269 | } |
1270 | } |
1271 | size += size1; |
1272 | } |
1273 | |
1274 | }else if(type->type_class == LTT_STRING){ |
1275 | size = 0; |
1276 | if(fld->field_fixed == -1){ |
1277 | fld->field_fixed = 0; |
1278 | }else{//0: string |
47a166fc |
1279 | size = strlen((char*)evD) + 1; //include end : '\0' |
6cd62ccf |
1280 | } |
1281 | |
1282 | }else if(type->type_class == LTT_STRUCT){ |
1283 | element_number = (int) type->element_number; |
1284 | size = 0; |
1285 | if(fld->field_fixed == -1){ |
1286 | offset1 = offsetRoot; |
1287 | offset2 = 0; |
1288 | for(i=0;i<element_number;i++){ |
40331ba8 |
1289 | size1=getFieldtypeSize(t, evT,offset1,offset2, fld->child[i], NULL, trace); |
6cd62ccf |
1290 | if(size1 > 0 && size >= 0){ |
1291 | size += size1; |
1292 | if(offset1 >= 0) offset1 += size1; |
1293 | offset2 += size1; |
1294 | }else{ |
1295 | size = -1; |
1296 | offset1 = -1; |
1297 | offset2 = -1; |
1298 | } |
1299 | } |
1300 | if(size == -1){ |
1301 | fld->field_fixed = 0; |
1302 | size = 0; |
1303 | }else fld->field_fixed = 1; |
1304 | }else if(fld->field_fixed == 0){ |
1305 | offset1 = offsetRoot; |
1306 | offset2 = 0; |
1307 | for(i=0;i<element_number;i++){ |
40331ba8 |
1308 | size=getFieldtypeSize(t,evT,offset1,offset2,fld->child[i],evD+offset2, trace); |
6cd62ccf |
1309 | offset1 += size; |
1310 | offset2 += size; |
1311 | } |
1312 | size = offset2; |
1313 | }else size = fld->field_size; |
1314 | } |
1315 | |
1316 | fld->offset_root = offsetRoot; |
1317 | fld->offset_parent = offsetParent; |
1318 | if(!evD){ |
1319 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
1320 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
1321 | } |
1322 | fld->field_size = size; |
1323 | |
1324 | return size; |
1325 | } |
1326 | |
6cd62ccf |
1327 | |
1328 | /***************************************************************************** |
1329 | *Function name |
1330 | * getIntNumber : get an integer number |
1331 | *Input params |
1332 | * size : the size of the integer |
1333 | * evD : the event data |
1334 | *Return value |
1335 | * int : an integer |
1336 | ****************************************************************************/ |
1337 | |
1338 | int getIntNumber(int size, void *evD) |
1339 | { |
cbd41522 |
1340 | gint64 i; |
1341 | if(size == 1) i = *(gint8 *)evD; |
1342 | else if(size == 2) i = *(gint16 *)evD; |
1343 | else if(size == 4) i = *(gint32 *)evD; |
1344 | else if(size == 8) i = *(gint64 *)evD; |
6cd62ccf |
1345 | |
1346 | return (int) i; |
1347 | } |
1348 | |
1349 | /***************************************************************************** |
1350 | *Function name |
1351 | * getDataEndianType : get the data type size and endian type of the local |
1352 | * machine |
1353 | *Input params |
1354 | * size : size of data type |
1355 | * endian : endian type, little or big |
1356 | ****************************************************************************/ |
1357 | |
963b5f2d |
1358 | void getDataEndianType(LttArchSize * size, LttArchEndian * endian) |
6cd62ccf |
1359 | { |
1360 | int i = 1; |
1361 | char c = (char) i; |
1362 | int sizeInt=sizeof(int), sizeLong=sizeof(long), sizePointer=sizeof(void *); |
1363 | |
1364 | if(c == 1) *endian = LTT_LITTLE_ENDIAN; |
1365 | else *endian = LTT_BIG_ENDIAN; |
1366 | |
1367 | if(sizeInt == 2 && sizeLong == 4 && sizePointer == 4) |
1368 | *size = LTT_LP32; |
1369 | else if(sizeInt == 4 && sizeLong == 4 && sizePointer == 4) |
1370 | *size = LTT_ILP32; |
1371 | else if(sizeInt == 4 && sizeLong == 8 && sizePointer == 8) |
1372 | *size = LTT_LP64; |
1373 | else if(sizeInt == 8 && sizeLong == 8 && sizePointer == 8) |
1374 | *size = LTT_ILP64; |
1375 | else *size = LTT_UNKNOWN; |
1376 | } |
1377 | |
a5dcde2f |
1378 | /* get the node name of the system */ |
1379 | |
1380 | char * ltt_trace_system_description_node_name (LttSystemDescription * s) |
1381 | { |
1382 | return s->node_name; |
1383 | } |
1384 | |
1385 | |
1386 | /* get the domain name of the system */ |
1387 | |
1388 | char * ltt_trace_system_description_domain_name (LttSystemDescription * s) |
1389 | { |
1390 | return s->domain_name; |
1391 | } |
1392 | |
1393 | |
1394 | /* get the description of the system */ |
1395 | |
1396 | char * ltt_trace_system_description_description (LttSystemDescription * s) |
1397 | { |
1398 | return s->description; |
1399 | } |
1400 | |
1401 | |
1402 | /* get the start time of the trace */ |
1403 | |
1404 | LttTime ltt_trace_system_description_trace_start_time(LttSystemDescription *s) |
1405 | { |
1406 | return s->trace_start; |
1407 | } |
1408 | |