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. |
803229fa |
368 | * |
369 | * MD : If pathname is already absolute, we do not add current working |
370 | * directory to it. |
371 | * |
963b5f2d |
372 | ****************************************************************************/ |
6cd62ccf |
373 | |
9f797243 |
374 | void get_absolute_pathname(const char *pathname, char * abs_pathname) |
375 | { |
376 | char * ptr, *ptr1; |
377 | size_t size = DIR_NAME_SIZE; |
378 | abs_pathname[0] = '\0'; |
803229fa |
379 | |
380 | if(pathname[0] == '/') |
381 | { |
382 | strcat(abs_pathname, pathname); |
383 | return; |
384 | } |
385 | |
9f797243 |
386 | if(!getcwd(abs_pathname, size)){ |
387 | g_warning("Can not get current working directory\n"); |
388 | strcat(abs_pathname, pathname); |
389 | return; |
390 | } |
803229fa |
391 | |
9f797243 |
392 | strcat(abs_pathname,"/"); |
393 | |
394 | ptr = (char*)pathname; |
395 | ptr1 = ptr + 1; |
396 | while(*ptr == '.' && *ptr1 == '.'){ |
397 | ptr += 3; |
398 | ptr1 = ptr + 1; |
399 | } |
400 | strcat(abs_pathname,ptr); |
401 | } |
402 | |
f7afe191 |
403 | LttTrace *ltt_trace_open(const char *pathname) |
6cd62ccf |
404 | { |
963b5f2d |
405 | LttTrace * t; |
406 | LttSystemDescription * sys_description; |
407 | char eventdefs[DIR_NAME_SIZE]; |
408 | char info[DIR_NAME_SIZE]; |
409 | char control[DIR_NAME_SIZE]; |
410 | char cpu[DIR_NAME_SIZE]; |
411 | char tmp[DIR_NAME_SIZE]; |
9f797243 |
412 | char abs_path[DIR_NAME_SIZE]; |
963b5f2d |
413 | gboolean has_slash = FALSE; |
414 | |
9f797243 |
415 | get_absolute_pathname(pathname, abs_path); |
416 | |
963b5f2d |
417 | //establish the pathname to different directories |
9f797243 |
418 | if(abs_path[strlen(abs_path)-1] == '/')has_slash = TRUE; |
419 | strcpy(eventdefs,abs_path); |
963b5f2d |
420 | if(!has_slash)strcat(eventdefs,"/"); |
421 | strcat(eventdefs,"eventdefs/"); |
422 | |
9f797243 |
423 | strcpy(info,abs_path); |
963b5f2d |
424 | if(!has_slash)strcat(info,"/"); |
425 | strcat(info,"info/"); |
426 | |
9f797243 |
427 | strcpy(control,abs_path); |
963b5f2d |
428 | if(!has_slash)strcat(control,"/"); |
429 | strcat(control,"control/"); |
430 | |
9f797243 |
431 | strcpy(cpu,abs_path); |
963b5f2d |
432 | if(!has_slash)strcat(cpu,"/"); |
433 | strcat(cpu,"cpu/"); |
434 | |
435 | //new trace |
436 | t = g_new(LttTrace, 1); |
437 | sys_description = g_new(LttSystemDescription, 1); |
9f797243 |
438 | t->pathname = g_strdup(abs_path); |
963b5f2d |
439 | t->facility_number = 0; |
440 | t->control_tracefile_number = 0; |
441 | t->per_cpu_tracefile_number = 0; |
442 | t->system_description = sys_description; |
443 | t->control_tracefiles = g_ptr_array_new(); |
444 | t->per_cpu_tracefiles = g_ptr_array_new(); |
445 | t->facilities = g_ptr_array_new(); |
446 | getDataEndianType(&(t->my_arch_size), &(t->my_arch_endian)); |
447 | |
448 | //get system description |
449 | strcpy(tmp,info); |
450 | strcat(tmp,"system.xml"); |
451 | getSystemInfo(sys_description, tmp); |
452 | |
b333a76b |
453 | //get facilities info |
454 | getFacilityInfo(t,eventdefs); |
455 | |
963b5f2d |
456 | //get control tracefile info |
457 | getControlFileInfo(t,control); |
458 | |
459 | //get cpu tracefile info |
460 | getCpuFileInfo(t,cpu); |
461 | |
963b5f2d |
462 | return t; |
6cd62ccf |
463 | } |
464 | |
49bf71b5 |
465 | char * ltt_trace_name(LttTrace *t) |
466 | { |
467 | return t->pathname; |
468 | } |
469 | |
470 | |
f7afe191 |
471 | /****************************************************************************** |
472 | * When we copy a trace, we want all the opening actions to happen again : |
473 | * the trace will be reopened and totally independant from the original. |
474 | * That's why we call ltt_trace_open. |
475 | *****************************************************************************/ |
476 | LttTrace *ltt_trace_copy(LttTrace *self) |
477 | { |
478 | return ltt_trace_open(self->pathname); |
479 | } |
480 | |
963b5f2d |
481 | void ltt_trace_close(LttTrace *t) |
6cd62ccf |
482 | { |
963b5f2d |
483 | int i; |
484 | LttTracefile * tf; |
485 | LttFacility * f; |
486 | |
487 | g_free(t->pathname); |
488 | |
489 | //free system_description |
490 | g_free(t->system_description->description); |
491 | g_free(t->system_description->node_name); |
492 | g_free(t->system_description->domain_name); |
493 | g_free(t->system_description->kernel_name); |
494 | g_free(t->system_description->kernel_release); |
495 | g_free(t->system_description->kernel_version); |
496 | g_free(t->system_description->machine); |
497 | g_free(t->system_description->processor); |
498 | g_free(t->system_description->hardware_platform); |
499 | g_free(t->system_description->operating_system); |
500 | g_free(t->system_description); |
501 | |
502 | //free control_tracefiles |
503 | for(i=0;i<t->control_tracefile_number;i++){ |
504 | tf = (LttTracefile*)g_ptr_array_index(t->control_tracefiles,i); |
505 | ltt_tracefile_close(tf); |
506 | } |
09ad4797 |
507 | g_ptr_array_free(t->control_tracefiles, TRUE); |
963b5f2d |
508 | |
509 | //free per_cpu_tracefiles |
510 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
511 | tf = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles,i); |
512 | ltt_tracefile_close(tf); |
513 | } |
09ad4797 |
514 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
963b5f2d |
515 | |
516 | //free facilities |
517 | for(i=0;i<t->facility_number;i++){ |
518 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
519 | ltt_facility_close(f); |
520 | } |
09ad4797 |
521 | g_ptr_array_free(t->facilities, TRUE); |
963b5f2d |
522 | |
523 | g_free(t); |
09ad4797 |
524 | |
525 | g_blow_chunks(); |
6cd62ccf |
526 | } |
527 | |
963b5f2d |
528 | |
6cd62ccf |
529 | /***************************************************************************** |
963b5f2d |
530 | *Get the system description of the trace |
6cd62ccf |
531 | ****************************************************************************/ |
532 | |
963b5f2d |
533 | LttSystemDescription *ltt_trace_system_description(LttTrace *t) |
6cd62ccf |
534 | { |
963b5f2d |
535 | return t->system_description; |
6cd62ccf |
536 | } |
537 | |
538 | /***************************************************************************** |
963b5f2d |
539 | * The following functions discover the facilities of the trace |
6cd62ccf |
540 | ****************************************************************************/ |
541 | |
963b5f2d |
542 | unsigned ltt_trace_facility_number(LttTrace *t) |
543 | { |
544 | return (unsigned)(t->facility_number); |
545 | } |
546 | |
547 | LttFacility *ltt_trace_facility_get(LttTrace *t, unsigned i) |
6cd62ccf |
548 | { |
963b5f2d |
549 | return (LttFacility*)g_ptr_array_index(t->facilities, i); |
6cd62ccf |
550 | } |
551 | |
552 | /***************************************************************************** |
553 | *Function name |
963b5f2d |
554 | * ltt_trace_facility_find : find facilities in the trace |
6cd62ccf |
555 | *Input params |
963b5f2d |
556 | * t : the trace |
557 | * name : facility name |
558 | *Output params |
559 | * position : position of the facility in the trace |
6cd62ccf |
560 | *Return value |
963b5f2d |
561 | * : the number of facilities |
6cd62ccf |
562 | ****************************************************************************/ |
563 | |
963b5f2d |
564 | unsigned ltt_trace_facility_find(LttTrace *t, char *name, unsigned *position) |
6cd62ccf |
565 | { |
963b5f2d |
566 | int i, count=0; |
567 | LttFacility * f; |
8a3005f3 |
568 | for(i=0;i<t->facility_number;i++){ |
963b5f2d |
569 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
570 | if(strcmp(f->name,name)==0){ |
571 | count++; |
572 | if(count==1) *position = i; |
573 | }else{ |
574 | if(count) break; |
575 | } |
576 | } |
577 | return count; |
6cd62ccf |
578 | } |
579 | |
580 | /***************************************************************************** |
963b5f2d |
581 | * Functions to discover all the event types in the trace |
6cd62ccf |
582 | ****************************************************************************/ |
583 | |
963b5f2d |
584 | unsigned ltt_trace_eventtype_number(LttTrace *t) |
6cd62ccf |
585 | { |
963b5f2d |
586 | int i; |
587 | unsigned count = 0; |
588 | LttFacility * f; |
b445142a |
589 | for(i=0;i<t->facility_number;i++){ |
963b5f2d |
590 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
591 | count += f->event_number; |
592 | } |
593 | return count; |
6cd62ccf |
594 | } |
595 | |
963b5f2d |
596 | LttFacility * ltt_trace_facility_by_id(LttTrace * trace, unsigned id) |
6cd62ccf |
597 | { |
963b5f2d |
598 | LttFacility * facility; |
599 | int i; |
600 | for(i=0;i<trace->facility_number;i++){ |
601 | facility = (LttFacility*) g_ptr_array_index(trace->facilities,i); |
602 | if(id >= facility->base_id && |
603 | id < facility->base_id + facility->event_number) |
604 | break; |
605 | } |
606 | if(i==trace->facility_number) return NULL; |
607 | else return facility; |
6cd62ccf |
608 | } |
609 | |
963b5f2d |
610 | LttEventType *ltt_trace_eventtype_get(LttTrace *t, unsigned evId) |
6cd62ccf |
611 | { |
963b5f2d |
612 | LttFacility * f; |
613 | f = ltt_trace_facility_by_id(t,evId); |
614 | if(!f) return NULL; |
615 | return f->events[evId - f->base_id]; |
6cd62ccf |
616 | } |
617 | |
618 | /***************************************************************************** |
963b5f2d |
619 | *There is one "per cpu" tracefile for each CPU, numbered from 0 to |
620 | *the maximum number of CPU in the system. When the number of CPU installed |
621 | *is less than the maximum, some positions are unused. There are also a |
622 | *number of "control" tracefiles (facilities, interrupts...). |
6cd62ccf |
623 | ****************************************************************************/ |
963b5f2d |
624 | unsigned ltt_trace_control_tracefile_number(LttTrace *t) |
6cd62ccf |
625 | { |
963b5f2d |
626 | return t->control_tracefile_number; |
6cd62ccf |
627 | } |
628 | |
963b5f2d |
629 | unsigned ltt_trace_per_cpu_tracefile_number(LttTrace *t) |
6cd62ccf |
630 | { |
963b5f2d |
631 | return t->per_cpu_tracefile_number; |
6cd62ccf |
632 | } |
633 | |
634 | /***************************************************************************** |
963b5f2d |
635 | *It is possible to search for the tracefiles by name or by CPU position. |
636 | *The index within the tracefiles of the same type is returned if found |
637 | *and a negative value otherwise. |
6cd62ccf |
638 | ****************************************************************************/ |
639 | |
963b5f2d |
640 | int ltt_trace_control_tracefile_find(LttTrace *t, char *name) |
6cd62ccf |
641 | { |
963b5f2d |
642 | LttTracefile * tracefile; |
643 | int i; |
644 | for(i=0;i<t->control_tracefile_number;i++){ |
645 | tracefile = (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i); |
646 | if(strcmp(tracefile->name, name)==0)break; |
647 | } |
648 | if(i == t->control_tracefile_number) return -1; |
649 | return i; |
6cd62ccf |
650 | } |
651 | |
963b5f2d |
652 | int ltt_trace_per_cpu_tracefile_find(LttTrace *t, unsigned i) |
6cd62ccf |
653 | { |
963b5f2d |
654 | LttTracefile * tracefile; |
655 | int j, name; |
656 | for(j=0;j<t->per_cpu_tracefile_number;j++){ |
657 | tracefile = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, j); |
658 | name = atoi(tracefile->name); |
659 | if(name == (int)i)break; |
660 | } |
661 | if(j == t->per_cpu_tracefile_number) return -1; |
662 | return j; |
6cd62ccf |
663 | } |
664 | |
665 | /***************************************************************************** |
963b5f2d |
666 | *Get a specific tracefile |
6cd62ccf |
667 | ****************************************************************************/ |
668 | |
963b5f2d |
669 | LttTracefile *ltt_trace_control_tracefile_get(LttTrace *t, unsigned i) |
6cd62ccf |
670 | { |
5598cfe3 |
671 | return (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i); |
963b5f2d |
672 | } |
673 | |
674 | LttTracefile *ltt_trace_per_cpu_tracefile_get(LttTrace *t, unsigned i) |
675 | { |
676 | return (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, i); |
6cd62ccf |
677 | } |
678 | |
487ad181 |
679 | /***************************************************************************** |
680 | * Get the start time and end time of the trace |
681 | ****************************************************************************/ |
682 | |
683 | void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end) |
684 | { |
685 | LttTime startSmall, startTmp, endBig, endTmp; |
686 | int i, j=0; |
687 | LttTracefile * tf; |
688 | |
689 | for(i=0;i<t->control_tracefile_number;i++){ |
690 | tf = g_ptr_array_index(t->control_tracefiles, i); |
691 | readBlock(tf,1); |
692 | startTmp = tf->a_block_start->time; |
693 | readBlock(tf,tf->block_number); |
694 | endTmp = tf->a_block_end->time; |
695 | if(i==0){ |
696 | startSmall = startTmp; |
697 | endBig = endTmp; |
698 | j = 1; |
699 | continue; |
700 | } |
308711e5 |
701 | if(ltt_time_compare(startSmall,startTmp) > 0) startSmall = startTmp; |
702 | if(ltt_time_compare(endBig,endTmp) < 0) endBig = endTmp; |
487ad181 |
703 | } |
704 | |
705 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
706 | tf = g_ptr_array_index(t->per_cpu_tracefiles, i); |
707 | readBlock(tf,1); |
708 | startTmp = tf->a_block_start->time; |
709 | readBlock(tf,tf->block_number); |
710 | endTmp = tf->a_block_end->time; |
711 | if(j == 0 && i==0){ |
712 | startSmall = startTmp; |
713 | endBig = endTmp; |
714 | continue; |
715 | } |
308711e5 |
716 | if(ltt_time_compare(startSmall,startTmp) > 0) startSmall = startTmp; |
717 | if(ltt_time_compare(endBig,endTmp) < 0) endBig = endTmp; |
487ad181 |
718 | } |
719 | |
720 | *start = startSmall; |
721 | *end = endBig; |
722 | } |
723 | |
724 | |
6cd62ccf |
725 | /***************************************************************************** |
963b5f2d |
726 | *Get the name of a tracefile |
6cd62ccf |
727 | ****************************************************************************/ |
728 | |
963b5f2d |
729 | char *ltt_tracefile_name(LttTracefile *tf) |
6cd62ccf |
730 | { |
963b5f2d |
731 | return tf->name; |
6cd62ccf |
732 | } |
733 | |
80da81ad |
734 | /***************************************************************************** |
735 | * Get the number of blocks in the tracefile |
736 | ****************************************************************************/ |
737 | |
738 | unsigned ltt_tracefile_block_number(LttTracefile *tf) |
739 | { |
740 | return tf->block_number; |
741 | } |
742 | |
6cd62ccf |
743 | /***************************************************************************** |
744 | *Function name |
745 | * ltt_tracefile_seek_time: seek to the first event of the trace with time |
746 | * larger or equal to time |
747 | *Input params |
748 | * t : tracefile |
749 | * time : criteria of the time |
6cd62ccf |
750 | ****************************************************************************/ |
caf7a67a |
751 | void ltt_tracefile_find_time_block(LttTracefile *t, LttTime time, |
752 | int start_block, int end_block) |
753 | { |
754 | int err, tmp_block, s, e; |
755 | int headTime; |
756 | int tailTime; |
757 | |
758 | err=readBlock(t,start_block); |
759 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
760 | if(start_block == end_block)return; |
761 | |
762 | tailTime = ltt_time_compare(t->a_block_end->time, time); |
763 | if(tailTime >= 0) return; |
764 | |
765 | err=readBlock(t,end_block); |
766 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
767 | if(start_block+1 == end_block)return; |
768 | |
769 | headTime = ltt_time_compare(t->a_block_start->time, time); |
770 | if(headTime <= 0 ) return; |
771 | |
772 | tmp_block = (end_block + start_block)/2; |
773 | err=readBlock(t,tmp_block); |
774 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
775 | |
776 | headTime = ltt_time_compare(t->a_block_start->time, time); |
777 | tailTime = ltt_time_compare(t->a_block_end->time, time); |
778 | if(headTime <= 0 && tailTime >= 0) return; |
779 | |
780 | if(headTime > 0){ |
781 | s = start_block + 1; |
782 | e = tmp_block - 1; |
783 | if(s <= e) |
784 | ltt_tracefile_find_time_block(t, time, s, e); |
785 | else return; |
786 | } |
787 | |
788 | if(tailTime < 0){ |
789 | s = tmp_block + 1; |
790 | e = end_block - 1; |
791 | if(s <= e) |
792 | ltt_tracefile_find_time_block(t, time, s, e); |
793 | else return; |
794 | } |
795 | } |
796 | |
797 | void ltt_tracefile_backward_find_time_block(LttTracefile *t, LttTime time) |
798 | { |
799 | int t_time, h_time, err; |
800 | err=readBlock(t,t->which_block-1); |
801 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
802 | h_time = ltt_time_compare(t->a_block_start->time, time); |
803 | t_time = ltt_time_compare(t->a_block_end->time, time); |
804 | if(h_time == 0){ |
805 | int tmp; |
806 | if(t->which_block == 1) return; |
807 | err=readBlock(t,t->which_block-1); |
808 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
809 | tmp = ltt_time_compare(t->a_block_end->time, time); |
810 | if(tmp == 0) return ltt_tracefile_seek_time(t, time); |
811 | err=readBlock(t,t->which_block+1); |
812 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
813 | }else if(h_time > 0){ |
814 | ltt_tracefile_find_time_block(t, time, 1, t->which_block); |
815 | return ltt_tracefile_seek_time(t, time) ; |
816 | }else{ |
817 | if(t_time >= 0) return ltt_tracefile_seek_time(t, time); |
818 | err=readBlock(t,t->which_block+1); |
819 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
820 | } |
821 | } |
6cd62ccf |
822 | |
963b5f2d |
823 | void ltt_tracefile_seek_time(LttTracefile *t, LttTime time) |
6cd62ccf |
824 | { |
825 | int err; |
963b5f2d |
826 | LttTime lttTime; |
308711e5 |
827 | int headTime = ltt_time_compare(t->a_block_start->time, time); |
828 | int tailTime = ltt_time_compare(t->a_block_end->time, time); |
62e55dd6 |
829 | LttEvent * ev; |
830 | |
6cd62ccf |
831 | if(headTime < 0 && tailTime > 0){ |
308711e5 |
832 | if(ltt_time_compare(t->a_block_end->time, t->current_event_time) !=0) { |
db55eaae |
833 | lttTime = getEventTime(t); |
308711e5 |
834 | err = ltt_time_compare(lttTime, time); |
db55eaae |
835 | if(err > 0){ |
308711e5 |
836 | if(t->which_event==2 || (&t->prev_event_time,&time)<0){ |
1a3b8cbd |
837 | return; |
db55eaae |
838 | }else{ |
839 | updateTracefile(t); |
840 | return ltt_tracefile_seek_time(t, time); |
1a3b8cbd |
841 | } |
db55eaae |
842 | }else if(err < 0){ |
843 | while(1){ |
844 | ev = ltt_tracefile_read(t); |
845 | if(ev == NULL){ |
846 | g_print("End of file\n"); |
847 | return; |
848 | } |
849 | lttTime = getEventTime(t); |
308711e5 |
850 | err = ltt_time_compare(lttTime, time); |
db55eaae |
851 | if(err >= 0)return; |
852 | } |
853 | }else return; |
854 | }else{//we are at the end of the block |
855 | updateTracefile(t); |
856 | return ltt_tracefile_seek_time(t, time); |
857 | } |
e37c1372 |
858 | }else if(headTime >= 0){ |
6cd62ccf |
859 | if(t->which_block == 1){ |
860 | updateTracefile(t); |
861 | }else{ |
1ee6a9af |
862 | if(ltt_time_compare(t->prev_block_end_time, time) >= 0 || |
863 | (t->prev_block_end_time.tv_sec == 0 && |
864 | t->prev_block_end_time.tv_nsec == 0 )){ |
caf7a67a |
865 | ltt_tracefile_backward_find_time_block(t, time); |
6cd62ccf |
866 | }else{ |
867 | updateTracefile(t); |
868 | } |
869 | } |
40331ba8 |
870 | }else if(tailTime < 0){ |
6cd62ccf |
871 | if(t->which_block != t->block_number){ |
caf7a67a |
872 | ltt_tracefile_find_time_block(t, time, t->which_block+1, t->block_number); |
873 | return ltt_tracefile_seek_time(t, time); |
963b5f2d |
874 | }else { |
a8c0f09d |
875 | t->cur_event_pos = t->buffer + t->block_size; |
876 | g_print("End of file\n"); |
963b5f2d |
877 | return; |
878 | } |
40331ba8 |
879 | }else if(tailTime == 0){ |
e37c1372 |
880 | t->cur_event_pos = t->last_event_pos; |
62e55dd6 |
881 | t->current_event_time = time; |
882 | t->cur_heart_beat_number = 0; |
883 | t->prev_event_time.tv_sec = 0; |
884 | t->prev_event_time.tv_nsec = 0; |
40331ba8 |
885 | return; |
6cd62ccf |
886 | } |
6cd62ccf |
887 | } |
888 | |
80da81ad |
889 | /***************************************************************************** |
890 | * Seek to the first event with position equal or larger to ep |
891 | ****************************************************************************/ |
892 | |
893 | void ltt_tracefile_seek_position(LttTracefile *t, LttEventPosition *ep) |
894 | { |
895 | //if we are at the right place, just return |
896 | if(t->which_block == ep->block_num && t->which_event == ep->event_num) |
897 | return; |
898 | |
899 | if(t->which_block == ep->block_num) updateTracefile(t); |
900 | else readBlock(t,ep->block_num); |
901 | |
902 | //event offset is availiable |
903 | if(ep->old_position){ |
904 | t->cur_heart_beat_number = ep->heart_beat_number; |
905 | t->cur_event_pos = t->buffer + ep->event_offset; |
906 | return; |
907 | } |
908 | |
909 | //only block number and event index are availiable |
910 | while(t->which_event < ep->event_num) ltt_tracefile_read(t); |
911 | |
912 | return; |
913 | } |
914 | |
6cd62ccf |
915 | /***************************************************************************** |
916 | *Function name |
40331ba8 |
917 | * ltt_tracefile_read : read the current event, set the pointer to the next |
6cd62ccf |
918 | *Input params |
919 | * t : tracefile |
920 | *Return value |
963b5f2d |
921 | * LttEvent * : an event to be processed |
6cd62ccf |
922 | ****************************************************************************/ |
923 | |
963b5f2d |
924 | LttEvent *ltt_tracefile_read(LttTracefile *t) |
6cd62ccf |
925 | { |
7525f9e5 |
926 | LttEvent * lttEvent = &t->an_event; |
963b5f2d |
927 | int err; |
6cd62ccf |
928 | |
bdc36259 |
929 | if(t->cur_event_pos == t->buffer + t->block_size){ |
930 | if(t->which_block == t->block_number){ |
bdc36259 |
931 | return NULL; |
932 | } |
933 | err = readBlock(t, t->which_block + 1); |
934 | if(err)g_error("Can not read tracefile"); |
935 | } |
936 | |
cbd41522 |
937 | lttEvent->event_id = (int)(*(guint16 *)(t->cur_event_pos)); |
963b5f2d |
938 | if(lttEvent->event_id == TRACE_TIME_HEARTBEAT) |
939 | t->cur_heart_beat_number++; |
6cd62ccf |
940 | |
40331ba8 |
941 | t->prev_event_time = t->current_event_time; |
62e55dd6 |
942 | // t->current_event_time = getEventTime(t); |
6cd62ccf |
943 | |
cbd41522 |
944 | lttEvent->time_delta = *(guint32 *)(t->cur_event_pos + EVENT_ID_SIZE); |
963b5f2d |
945 | lttEvent->event_time = t->current_event_time; |
946 | |
6cd62ccf |
947 | lttEvent->tracefile = t; |
948 | lttEvent->data = t->cur_event_pos + EVENT_HEADER_SIZE; |
908f42fa |
949 | lttEvent->which_block = t->which_block; |
950 | lttEvent->which_event = t->which_event; |
6cd62ccf |
951 | |
40331ba8 |
952 | //update the fields of the current event and go to the next event |
953 | err = skipEvent(t); |
40331ba8 |
954 | if(err == ERANGE) g_error("event id is out of range\n"); |
40331ba8 |
955 | |
e4eced0f |
956 | lttEvent->event_cycle_count = t->cur_cycle_count; |
957 | |
6cd62ccf |
958 | return lttEvent; |
959 | } |
960 | |
961 | /**************************************************************************** |
962 | *Function name |
963 | * readFile : wrap function to read from a file |
964 | *Input Params |
965 | * fd : file descriptor |
966 | * buf : buf to contain the content |
967 | * size : number of bytes to be read |
968 | * mesg : message to be printed if some thing goes wrong |
969 | *return value |
970 | * 0 : success |
971 | * EIO : can not read from the file |
972 | ****************************************************************************/ |
973 | |
974 | int readFile(int fd, void * buf, size_t size, char * mesg) |
975 | { |
976 | ssize_t nbBytes; |
977 | nbBytes = read(fd, buf, size); |
978 | if(nbBytes != size){ |
979 | printf("%s\n",mesg); |
980 | return EIO; |
981 | } |
982 | return 0; |
983 | } |
984 | |
985 | /**************************************************************************** |
986 | *Function name |
987 | * readBlock : read a block from the file |
988 | *Input Params |
989 | * lttdes : ltt trace file |
990 | * whichBlock : the block which will be read |
991 | *return value |
992 | * 0 : success |
993 | * EINVAL : lseek fail |
994 | * EIO : can not read from the file |
995 | ****************************************************************************/ |
996 | |
963b5f2d |
997 | int readBlock(LttTracefile * tf, int whichBlock) |
6cd62ccf |
998 | { |
999 | off_t nbBytes; |
cbd41522 |
1000 | guint32 lostSize; |
6cd62ccf |
1001 | |
1002 | if(whichBlock - tf->which_block == 1 && tf->which_block != 0){ |
963b5f2d |
1003 | tf->prev_block_end_time = tf->a_block_end->time; |
40331ba8 |
1004 | tf->prev_event_time = tf->a_block_end->time; |
6cd62ccf |
1005 | }else{ |
1006 | tf->prev_block_end_time.tv_sec = 0; |
1007 | tf->prev_block_end_time.tv_nsec = 0; |
40331ba8 |
1008 | tf->prev_event_time.tv_sec = 0; |
1009 | tf->prev_event_time.tv_nsec = 0; |
6cd62ccf |
1010 | } |
6cd62ccf |
1011 | |
963b5f2d |
1012 | nbBytes=lseek(tf->fd,(off_t)((whichBlock-1)*tf->block_size), SEEK_SET); |
6cd62ccf |
1013 | if(nbBytes == -1) return EINVAL; |
1014 | |
963b5f2d |
1015 | if(readFile(tf->fd,tf->buffer,tf->block_size,"Unable to read a block")) |
1016 | return EIO; |
6cd62ccf |
1017 | |
963b5f2d |
1018 | tf->a_block_start=(BlockStart *) (tf->buffer + EVENT_HEADER_SIZE); |
cbd41522 |
1019 | lostSize = *(guint32 *)(tf->buffer + tf->block_size - sizeof(guint32)); |
963b5f2d |
1020 | tf->a_block_end=(BlockEnd *)(tf->buffer + tf->block_size - |
1021 | lostSize + EVENT_HEADER_SIZE); |
e37c1372 |
1022 | tf->last_event_pos = tf->buffer + tf->block_size - lostSize; |
6cd62ccf |
1023 | |
6cd62ccf |
1024 | tf->which_block = whichBlock; |
963b5f2d |
1025 | tf->which_event = 1; |
40331ba8 |
1026 | tf->cur_event_pos = tf->buffer;//the beginning of the block, block start ev |
6cd62ccf |
1027 | tf->cur_heart_beat_number = 0; |
963b5f2d |
1028 | |
6cd62ccf |
1029 | getCyclePerNsec(tf); |
1030 | |
62e55dd6 |
1031 | tf->current_event_time = getEventTime(tf); |
40331ba8 |
1032 | |
6cd62ccf |
1033 | return 0; |
1034 | } |
1035 | |
1036 | /***************************************************************************** |
1037 | *Function name |
1038 | * updateTracefile : reinitialize the info of the block which is already |
1039 | * in the buffer |
1040 | *Input params |
1041 | * tf : tracefile |
1042 | ****************************************************************************/ |
1043 | |
963b5f2d |
1044 | void updateTracefile(LttTracefile * tf) |
6cd62ccf |
1045 | { |
963b5f2d |
1046 | tf->which_event = 1; |
40331ba8 |
1047 | tf->cur_event_pos = tf->buffer; |
62e55dd6 |
1048 | tf->current_event_time = getEventTime(tf); |
6cd62ccf |
1049 | tf->cur_heart_beat_number = 0; |
1050 | |
1051 | tf->prev_event_time.tv_sec = 0; |
1052 | tf->prev_event_time.tv_nsec = 0; |
1053 | } |
1054 | |
1055 | /***************************************************************************** |
1056 | *Function name |
1057 | * skipEvent : go to the next event, update the fields of the current event |
1058 | *Input params |
1059 | * t : tracefile |
1060 | *return value |
1061 | * 0 : success |
6cd62ccf |
1062 | * ERANGE : event id is out of range |
1063 | ****************************************************************************/ |
1064 | |
963b5f2d |
1065 | int skipEvent(LttTracefile * t) |
6cd62ccf |
1066 | { |
1067 | int evId, err; |
1068 | void * evData; |
963b5f2d |
1069 | LttEventType * evT; |
1070 | LttField * rootFld; |
6cd62ccf |
1071 | |
cbd41522 |
1072 | evId = (int)(*(guint16 *)(t->cur_event_pos)); |
6cd62ccf |
1073 | evData = t->cur_event_pos + EVENT_HEADER_SIZE; |
6cd62ccf |
1074 | |
908f42fa |
1075 | evT = ltt_trace_eventtype_get(t->trace,(unsigned)evId); |
47a166fc |
1076 | |
908f42fa |
1077 | if(evT) rootFld = evT->root_field; |
1078 | else return ERANGE; |
6cd62ccf |
1079 | |
908f42fa |
1080 | if(rootFld){ |
1081 | //event has string/sequence or the last event is not the same event |
1082 | if((evT->latest_block!=t->which_block || evT->latest_event!=t->which_event) |
1083 | && rootFld->field_fixed == 0){ |
1084 | setFieldsOffset(t, evT, evData, t->trace); |
47a166fc |
1085 | } |
908f42fa |
1086 | t->cur_event_pos += EVENT_HEADER_SIZE + rootFld->field_size; |
1087 | }else t->cur_event_pos += EVENT_HEADER_SIZE; |
1088 | |
1089 | evT->latest_block = t->which_block; |
1090 | evT->latest_event = t->which_event; |
1091 | |
6cd62ccf |
1092 | //the next event is in the next block |
963b5f2d |
1093 | if(evId == TRACE_BLOCK_END){ |
bdc36259 |
1094 | t->cur_event_pos = t->buffer + t->block_size; |
6cd62ccf |
1095 | }else{ |
1096 | t->which_event++; |
62e55dd6 |
1097 | t->current_event_time = getEventTime(t); |
6cd62ccf |
1098 | } |
1099 | |
1100 | return 0; |
1101 | } |
1102 | |
1103 | /***************************************************************************** |
1104 | *Function name |
1105 | * getCyclePerNsec : calculate cycles per nsec for current block |
1106 | *Input Params |
1107 | * t : tracefile |
1108 | ****************************************************************************/ |
1109 | |
963b5f2d |
1110 | void getCyclePerNsec(LttTracefile * t) |
6cd62ccf |
1111 | { |
963b5f2d |
1112 | LttTime lBufTotalTime; /* Total time for this buffer */ |
1113 | LttCycleCount lBufTotalNSec; /* Total time for this buffer in nsecs */ |
1114 | LttCycleCount lBufTotalCycle;/* Total cycles for this buffer */ |
6cd62ccf |
1115 | |
1116 | /* Calculate the total time for this buffer */ |
308711e5 |
1117 | lBufTotalTime = ltt_time_sub(t->a_block_end->time, t->a_block_start->time); |
6cd62ccf |
1118 | |
1119 | /* Calculate the total cycles for this bufffer */ |
e4eced0f |
1120 | lBufTotalCycle = t->a_block_end->cycle_count; |
1121 | lBufTotalCycle -= t->a_block_start->cycle_count; |
6cd62ccf |
1122 | |
1123 | /* Convert the total time to nsecs */ |
e4eced0f |
1124 | lBufTotalNSec = lBufTotalTime.tv_sec; |
308711e5 |
1125 | lBufTotalNSec *= NANOSECONDS_PER_SECOND; |
e4eced0f |
1126 | lBufTotalNSec += lBufTotalTime.tv_nsec; |
6cd62ccf |
1127 | |
1128 | t->cycle_per_nsec = (double)lBufTotalCycle / (double)lBufTotalNSec; |
1129 | } |
1130 | |
1131 | /**************************************************************************** |
1132 | *Function name |
1133 | * getEventTime : obtain the time of an event |
1134 | *Input params |
1135 | * tf : tracefile |
1136 | *Return value |
963b5f2d |
1137 | * LttTime : the time of the event |
6cd62ccf |
1138 | ****************************************************************************/ |
1139 | |
963b5f2d |
1140 | LttTime getEventTime(LttTracefile * tf) |
6cd62ccf |
1141 | { |
963b5f2d |
1142 | LttTime time; |
1143 | LttCycleCount cycle_count; // cycle count for the current event |
1144 | LttCycleCount lEventTotalCycle; // Total cycles from start for event |
1145 | double lEventNSec; // Total usecs from start for event |
1146 | LttTime lTimeOffset; // Time offset in struct LttTime |
cbd41522 |
1147 | guint16 evId; |
1148 | gint64 nanoSec, tmpCycleCount = (((guint64)1)<<32); |
e4eced0f |
1149 | |
cbd41522 |
1150 | evId = *(guint16 *)tf->cur_event_pos; |
e4eced0f |
1151 | if(evId == TRACE_BLOCK_START){ |
dd691a2e |
1152 | tf->count = 0; |
1153 | tf->pre_cycle_count = 0; |
e4eced0f |
1154 | tf->cur_cycle_count = tf->a_block_start->cycle_count; |
40331ba8 |
1155 | return tf->a_block_start->time; |
e4eced0f |
1156 | }else if(evId == TRACE_BLOCK_END){ |
dd691a2e |
1157 | tf->count = 0; |
1158 | tf->pre_cycle_count = 0; |
e4eced0f |
1159 | tf->cur_cycle_count = tf->a_block_end->cycle_count; |
40331ba8 |
1160 | return tf->a_block_end->time; |
e4eced0f |
1161 | } |
40331ba8 |
1162 | |
e4eced0f |
1163 | // Calculate total time in cycles from start of buffer for this event |
cbd41522 |
1164 | cycle_count = (LttCycleCount)*(guint32 *)(tf->cur_event_pos + EVENT_ID_SIZE); |
e4eced0f |
1165 | |
dd691a2e |
1166 | if(cycle_count < tf->pre_cycle_count)tf->count++; |
1167 | tf->pre_cycle_count = cycle_count; |
1168 | cycle_count += tmpCycleCount * tf->count; |
e4eced0f |
1169 | |
dd691a2e |
1170 | if(tf->cur_heart_beat_number > tf->count) |
1171 | cycle_count += tmpCycleCount * (tf->cur_heart_beat_number - tf->count); |
e4eced0f |
1172 | |
1173 | tf->cur_cycle_count = cycle_count; |
1174 | |
1175 | lEventTotalCycle = cycle_count; |
1176 | lEventTotalCycle -= tf->a_block_start->cycle_count; |
6cd62ccf |
1177 | |
963b5f2d |
1178 | // Convert it to nsecs |
6cd62ccf |
1179 | lEventNSec = lEventTotalCycle / tf->cycle_per_nsec; |
e4eced0f |
1180 | nanoSec = lEventNSec; |
1181 | |
963b5f2d |
1182 | // Determine offset in struct LttTime |
308711e5 |
1183 | lTimeOffset.tv_nsec = nanoSec % NANOSECONDS_PER_SECOND; |
1184 | lTimeOffset.tv_sec = nanoSec / NANOSECONDS_PER_SECOND; |
6cd62ccf |
1185 | |
308711e5 |
1186 | time = ltt_time_add(tf->a_block_start->time, lTimeOffset); |
e4eced0f |
1187 | |
6cd62ccf |
1188 | return time; |
1189 | } |
1190 | |
1191 | /***************************************************************************** |
1192 | *Function name |
1193 | * setFieldsOffset : set offset of the fields |
1194 | *Input params |
1195 | * tracefile : opened trace file |
1196 | * evT : the event type |
1197 | * evD : event data, it may be NULL |
1198 | ****************************************************************************/ |
1199 | |
40331ba8 |
1200 | void setFieldsOffset(LttTracefile *tf,LttEventType *evT,void *evD,LttTrace* t) |
6cd62ccf |
1201 | { |
963b5f2d |
1202 | LttField * rootFld = evT->root_field; |
6cd62ccf |
1203 | // rootFld->base_address = evD; |
1204 | |
8710c6c7 |
1205 | if(rootFld) |
1206 | rootFld->field_size = getFieldtypeSize(tf, evT, 0,0,rootFld, evD,t); |
6cd62ccf |
1207 | } |
1208 | |
1209 | /***************************************************************************** |
1210 | *Function name |
1211 | * getFieldtypeSize: get the size of the field type (primitive type) |
1212 | *Input params |
1213 | * tracefile : opened trace file |
1214 | * evT : event type |
1215 | * offsetRoot : offset from the root |
1216 | * offsetParent : offset from the parrent |
1217 | * fld : field |
1218 | * evD : event data, it may be NULL |
1219 | *Return value |
1220 | * int : size of the field |
1221 | ****************************************************************************/ |
1222 | |
963b5f2d |
1223 | int getFieldtypeSize(LttTracefile * t, LttEventType * evT, int offsetRoot, |
40331ba8 |
1224 | int offsetParent, LttField * fld, void *evD, LttTrace *trace) |
6cd62ccf |
1225 | { |
1226 | int size, size1, element_number, i, offset1, offset2; |
963b5f2d |
1227 | LttType * type = fld->field_type; |
6cd62ccf |
1228 | |
8710c6c7 |
1229 | if(t){ |
963b5f2d |
1230 | if(evT->latest_block==t->which_block && evT->latest_event==t->which_event){ |
1231 | return fld->field_size; |
1232 | } |
1233 | } |
6cd62ccf |
1234 | |
1235 | if(fld->field_fixed == 1){ |
1236 | if(fld == evT->root_field) return fld->field_size; |
1237 | } |
1238 | |
1239 | if(type->type_class != LTT_STRUCT && type->type_class != LTT_ARRAY && |
1240 | type->type_class != LTT_SEQUENCE && type->type_class != LTT_STRING){ |
1241 | if(fld->field_fixed == -1){ |
40331ba8 |
1242 | size = (int) ltt_type_size(trace, type); |
6cd62ccf |
1243 | fld->field_fixed = 1; |
1244 | }else size = fld->field_size; |
1245 | |
1246 | }else if(type->type_class == LTT_ARRAY){ |
1247 | element_number = (int) type->element_number; |
1248 | if(fld->field_fixed == -1){ |
40331ba8 |
1249 | size = getFieldtypeSize(t, evT, offsetRoot,0,fld->child[0], NULL, trace); |
6cd62ccf |
1250 | if(size == 0){ //has string or sequence |
1251 | fld->field_fixed = 0; |
1252 | }else{ |
1253 | fld->field_fixed = 1; |
1254 | size *= element_number; |
1255 | } |
1256 | }else if(fld->field_fixed == 0){// has string or sequence |
1257 | size = 0; |
1258 | for(i=0;i<element_number;i++){ |
1259 | size += getFieldtypeSize(t, evT, offsetRoot+size,size, |
40331ba8 |
1260 | fld->child[0], evD+size, trace); |
6cd62ccf |
1261 | } |
1262 | }else size = fld->field_size; |
1263 | |
1264 | }else if(type->type_class == LTT_SEQUENCE){ |
40331ba8 |
1265 | size1 = (int) ltt_type_size(trace, type); |
6cd62ccf |
1266 | if(fld->field_fixed == -1){ |
908f42fa |
1267 | fld->sequ_number_size = size1; |
6cd62ccf |
1268 | fld->field_fixed = 0; |
40331ba8 |
1269 | size = getFieldtypeSize(t, evT, offsetRoot,0,fld->child[0], NULL, trace); |
6cd62ccf |
1270 | fld->element_size = size; |
1271 | }else{//0: sequence |
1272 | element_number = getIntNumber(size1,evD); |
1273 | type->element_number = element_number; |
1274 | if(fld->element_size > 0){ |
1275 | size = element_number * fld->element_size; |
1276 | }else{//sequence has string or sequence |
1277 | size = 0; |
1278 | for(i=0;i<element_number;i++){ |
1279 | size += getFieldtypeSize(t, evT, offsetRoot+size+size1,size+size1, |
40331ba8 |
1280 | fld->child[0], evD+size+size1, trace); |
6cd62ccf |
1281 | } |
1282 | } |
1283 | size += size1; |
1284 | } |
1285 | |
1286 | }else if(type->type_class == LTT_STRING){ |
1287 | size = 0; |
1288 | if(fld->field_fixed == -1){ |
1289 | fld->field_fixed = 0; |
1290 | }else{//0: string |
47a166fc |
1291 | size = strlen((char*)evD) + 1; //include end : '\0' |
6cd62ccf |
1292 | } |
1293 | |
1294 | }else if(type->type_class == LTT_STRUCT){ |
1295 | element_number = (int) type->element_number; |
1296 | size = 0; |
1297 | if(fld->field_fixed == -1){ |
1298 | offset1 = offsetRoot; |
1299 | offset2 = 0; |
1300 | for(i=0;i<element_number;i++){ |
40331ba8 |
1301 | size1=getFieldtypeSize(t, evT,offset1,offset2, fld->child[i], NULL, trace); |
6cd62ccf |
1302 | if(size1 > 0 && size >= 0){ |
1303 | size += size1; |
1304 | if(offset1 >= 0) offset1 += size1; |
1305 | offset2 += size1; |
1306 | }else{ |
1307 | size = -1; |
1308 | offset1 = -1; |
1309 | offset2 = -1; |
1310 | } |
1311 | } |
1312 | if(size == -1){ |
1313 | fld->field_fixed = 0; |
1314 | size = 0; |
1315 | }else fld->field_fixed = 1; |
1316 | }else if(fld->field_fixed == 0){ |
1317 | offset1 = offsetRoot; |
1318 | offset2 = 0; |
1319 | for(i=0;i<element_number;i++){ |
40331ba8 |
1320 | size=getFieldtypeSize(t,evT,offset1,offset2,fld->child[i],evD+offset2, trace); |
6cd62ccf |
1321 | offset1 += size; |
1322 | offset2 += size; |
1323 | } |
1324 | size = offset2; |
1325 | }else size = fld->field_size; |
1326 | } |
1327 | |
1328 | fld->offset_root = offsetRoot; |
1329 | fld->offset_parent = offsetParent; |
1330 | if(!evD){ |
1331 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
1332 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
1333 | } |
1334 | fld->field_size = size; |
1335 | |
1336 | return size; |
1337 | } |
1338 | |
6cd62ccf |
1339 | |
1340 | /***************************************************************************** |
1341 | *Function name |
1342 | * getIntNumber : get an integer number |
1343 | *Input params |
1344 | * size : the size of the integer |
1345 | * evD : the event data |
1346 | *Return value |
1347 | * int : an integer |
1348 | ****************************************************************************/ |
1349 | |
1350 | int getIntNumber(int size, void *evD) |
1351 | { |
cbd41522 |
1352 | gint64 i; |
1353 | if(size == 1) i = *(gint8 *)evD; |
1354 | else if(size == 2) i = *(gint16 *)evD; |
1355 | else if(size == 4) i = *(gint32 *)evD; |
1356 | else if(size == 8) i = *(gint64 *)evD; |
6cd62ccf |
1357 | |
1358 | return (int) i; |
1359 | } |
1360 | |
1361 | /***************************************************************************** |
1362 | *Function name |
1363 | * getDataEndianType : get the data type size and endian type of the local |
1364 | * machine |
1365 | *Input params |
1366 | * size : size of data type |
1367 | * endian : endian type, little or big |
1368 | ****************************************************************************/ |
1369 | |
963b5f2d |
1370 | void getDataEndianType(LttArchSize * size, LttArchEndian * endian) |
6cd62ccf |
1371 | { |
1372 | int i = 1; |
1373 | char c = (char) i; |
1374 | int sizeInt=sizeof(int), sizeLong=sizeof(long), sizePointer=sizeof(void *); |
1375 | |
1376 | if(c == 1) *endian = LTT_LITTLE_ENDIAN; |
1377 | else *endian = LTT_BIG_ENDIAN; |
1378 | |
1379 | if(sizeInt == 2 && sizeLong == 4 && sizePointer == 4) |
1380 | *size = LTT_LP32; |
1381 | else if(sizeInt == 4 && sizeLong == 4 && sizePointer == 4) |
1382 | *size = LTT_ILP32; |
1383 | else if(sizeInt == 4 && sizeLong == 8 && sizePointer == 8) |
1384 | *size = LTT_LP64; |
1385 | else if(sizeInt == 8 && sizeLong == 8 && sizePointer == 8) |
1386 | *size = LTT_ILP64; |
1387 | else *size = LTT_UNKNOWN; |
1388 | } |
1389 | |
a5dcde2f |
1390 | /* get the node name of the system */ |
1391 | |
1392 | char * ltt_trace_system_description_node_name (LttSystemDescription * s) |
1393 | { |
1394 | return s->node_name; |
1395 | } |
1396 | |
1397 | |
1398 | /* get the domain name of the system */ |
1399 | |
1400 | char * ltt_trace_system_description_domain_name (LttSystemDescription * s) |
1401 | { |
1402 | return s->domain_name; |
1403 | } |
1404 | |
1405 | |
1406 | /* get the description of the system */ |
1407 | |
1408 | char * ltt_trace_system_description_description (LttSystemDescription * s) |
1409 | { |
1410 | return s->description; |
1411 | } |
1412 | |
1413 | |
1414 | /* get the start time of the trace */ |
1415 | |
1416 | LttTime ltt_trace_system_description_trace_start_time(LttSystemDescription *s) |
1417 | { |
1418 | return s->trace_start; |
1419 | } |
1420 | |