449cb9d7 |
1 | /* This file is part of the Linux Trace Toolkit viewer |
2 | * Copyright (C) 2003-2004 Xiangxiu Yang |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify |
5 | * it under the terms of the GNU General Public License Version 2 as |
6 | * published by the Free Software Foundation; |
7 | * |
8 | * This program is distributed in the hope that it will be useful, |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
11 | * GNU General Public License for more details. |
12 | * |
13 | * You should have received a copy of the GNU General Public License |
14 | * along with this program; if not, write to the Free Software |
15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
16 | * MA 02111-1307, USA. |
17 | */ |
18 | |
6cd62ccf |
19 | #include <stdio.h> |
20 | #include <fcntl.h> |
21 | #include <sys/stat.h> |
22 | #include <sys/types.h> |
963b5f2d |
23 | #include <dirent.h> |
6cd62ccf |
24 | #include <linux/errno.h> |
25 | |
ef35d837 |
26 | // For realpath |
27 | #include <limits.h> |
28 | #include <stdlib.h> |
29 | |
30 | |
6cd62ccf |
31 | #include "parser.h" |
a5dcde2f |
32 | #include <ltt/ltt.h> |
33 | #include "ltt-private.h" |
963b5f2d |
34 | #include <ltt/trace.h> |
a5dcde2f |
35 | #include <ltt/facility.h> |
6cd62ccf |
36 | |
963b5f2d |
37 | #define DIR_NAME_SIZE 256 |
6cd62ccf |
38 | |
39 | /* set the offset of the fields belonging to the event, |
40 | need the information of the archecture */ |
40331ba8 |
41 | void setFieldsOffset(LttTracefile *tf,LttEventType *evT,void *evD,LttTrace *t); |
6cd62ccf |
42 | |
43 | /* get the size of the field type according to the archtecture's |
44 | size and endian type(info of the archecture) */ |
40331ba8 |
45 | int getFieldtypeSize(LttTracefile * tf, LttEventType * evT, int offsetRoot, |
46 | int offsetParent, LttField *fld, void *evD, LttTrace* t); |
6cd62ccf |
47 | |
48 | /* read a fixed size or a block information from the file (fd) */ |
49 | int readFile(int fd, void * buf, size_t size, char * mesg); |
963b5f2d |
50 | int readBlock(LttTracefile * tf, int whichBlock); |
6cd62ccf |
51 | |
52 | /* calculate cycles per nsec for current block */ |
963b5f2d |
53 | void getCyclePerNsec(LttTracefile * t); |
6cd62ccf |
54 | |
55 | /* reinitialize the info of the block which is already in the buffer */ |
963b5f2d |
56 | void updateTracefile(LttTracefile * tf); |
6cd62ccf |
57 | |
58 | /* go to the next event */ |
963b5f2d |
59 | int skipEvent(LttTracefile * t); |
6cd62ccf |
60 | |
6cd62ccf |
61 | |
43da6a59 |
62 | /* Functions to parse system.xml file (using glib xml parser) */ |
63 | static void parser_start_element (GMarkupParseContext *context, |
64 | const gchar *element_name, |
65 | const gchar **attribute_names, |
66 | const gchar **attribute_values, |
67 | gpointer user_data, |
68 | GError **error) |
69 | { |
70 | int i=0; |
71 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
72 | if(strcmp("system", element_name)){ |
73 | g_warning("This is not system.xml file\n"); |
74 | exit(1); |
75 | } |
76 | |
77 | while(attribute_names[i]){ |
78 | if(strcmp("node_name", attribute_names[i])==0){ |
79 | des->node_name = g_strdup(attribute_values[i]); |
80 | }else if(strcmp("domainname", attribute_names[i])==0){ |
81 | des->domain_name = g_strdup(attribute_values[i]); |
82 | }else if(strcmp("cpu", attribute_names[i])==0){ |
83 | des->nb_cpu = atoi(attribute_values[i]); |
84 | }else if(strcmp("arch_size", attribute_names[i])==0){ |
85 | if(strcmp(attribute_values[i],"LP32") == 0) des->size = LTT_LP32; |
86 | else if(strcmp(attribute_values[i],"ILP32") == 0) des->size = LTT_ILP32; |
87 | else if(strcmp(attribute_values[i],"LP64") == 0) des->size = LTT_LP64; |
88 | else if(strcmp(attribute_values[i],"ILP64") == 0) des->size = LTT_ILP64; |
89 | else if(strcmp(attribute_values[i],"UNKNOWN") == 0) des->size = LTT_UNKNOWN; |
90 | }else if(strcmp("endian", attribute_names[i])==0){ |
91 | if(strcmp(attribute_values[i],"LITTLE_ENDIAN") == 0) |
92 | des->endian = LTT_LITTLE_ENDIAN; |
93 | else if(strcmp(attribute_values[i],"BIG_ENDIAN") == 0) |
94 | des->endian = LTT_BIG_ENDIAN; |
95 | }else if(strcmp("kernel_name", attribute_names[i])==0){ |
96 | des->kernel_name = g_strdup(attribute_values[i]); |
97 | }else if(strcmp("kernel_release", attribute_names[i])==0){ |
98 | des->kernel_release = g_strdup(attribute_values[i]); |
99 | }else if(strcmp("kernel_version", attribute_names[i])==0){ |
100 | des->kernel_version = g_strdup(attribute_values[i]); |
101 | }else if(strcmp("machine", attribute_names[i])==0){ |
102 | des->machine = g_strdup(attribute_values[i]); |
103 | }else if(strcmp("processor", attribute_names[i])==0){ |
104 | des->processor = g_strdup(attribute_values[i]); |
105 | }else if(strcmp("hardware_platform", attribute_names[i])==0){ |
106 | des->hardware_platform = g_strdup(attribute_values[i]); |
107 | }else if(strcmp("operating_system", attribute_names[i])==0){ |
108 | des->operating_system = g_strdup(attribute_values[i]); |
109 | }else if(strcmp("ltt_major_version", attribute_names[i])==0){ |
110 | des->ltt_major_version = atoi(attribute_values[i]); |
111 | }else if(strcmp("ltt_minor_version", attribute_names[i])==0){ |
112 | des->ltt_minor_version = atoi(attribute_values[i]); |
113 | }else if(strcmp("ltt_block_size", attribute_names[i])==0){ |
114 | des->ltt_block_size = atoi(attribute_values[i]); |
115 | }else{ |
116 | g_warning("Not a valid attribute\n"); |
117 | exit(1); |
118 | } |
119 | i++; |
120 | } |
121 | } |
122 | |
123 | static void parser_end_element (GMarkupParseContext *context, |
124 | const gchar *element_name, |
125 | gpointer user_data, |
126 | GError **error) |
127 | { |
128 | } |
129 | |
130 | static void parser_characters (GMarkupParseContext *context, |
131 | const gchar *text, |
132 | gsize text_len, |
133 | gpointer user_data, |
134 | GError **error) |
135 | { |
136 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
137 | des->description = g_strdup(text); |
138 | } |
139 | |
140 | |
6cd62ccf |
141 | /***************************************************************************** |
142 | *Function name |
963b5f2d |
143 | * ltt_tracefile_open : open a trace file, construct a LttTracefile |
6cd62ccf |
144 | *Input params |
963b5f2d |
145 | * t : the trace containing the tracefile |
146 | * fileName : path name of the trace file |
6cd62ccf |
147 | *Return value |
963b5f2d |
148 | * : a pointer to a tracefile |
6cd62ccf |
149 | ****************************************************************************/ |
150 | |
963b5f2d |
151 | LttTracefile* ltt_tracefile_open(LttTrace * t, char * fileName) |
6cd62ccf |
152 | { |
963b5f2d |
153 | LttTracefile * tf; |
154 | struct stat lTDFStat; /* Trace data file status */ |
155 | BlockStart a_block_start; |
6cd62ccf |
156 | |
963b5f2d |
157 | tf = g_new(LttTracefile, 1); |
6cd62ccf |
158 | |
159 | //open the file |
963b5f2d |
160 | tf->name = g_strdup(fileName); |
161 | tf->trace = t; |
6cd62ccf |
162 | tf->fd = open(fileName, O_RDONLY, 0); |
163 | if(tf->fd < 0){ |
164 | g_error("Unable to open input data file %s\n", fileName); |
165 | } |
166 | |
167 | // Get the file's status |
168 | if(fstat(tf->fd, &lTDFStat) < 0){ |
169 | g_error("Unable to get the status of the input data file %s\n", fileName); |
170 | } |
171 | |
172 | // Is the file large enough to contain a trace |
963b5f2d |
173 | if(lTDFStat.st_size < sizeof(BlockStart) + EVENT_HEADER_SIZE){ |
8710c6c7 |
174 | g_print("The input data file %s does not contain a trace\n", fileName); |
663bd9ff |
175 | g_free(tf->name); |
176 | close(tf->fd); |
177 | g_free(tf); |
8710c6c7 |
178 | return NULL; |
6cd62ccf |
179 | } |
180 | |
181 | //store the size of the file |
182 | tf->file_size = lTDFStat.st_size; |
963b5f2d |
183 | tf->block_size = t->system_description->ltt_block_size; |
184 | tf->block_number = tf->file_size / tf->block_size; |
185 | tf->which_block = 0; |
6cd62ccf |
186 | |
187 | //allocate memory to contain the info of a block |
963b5f2d |
188 | tf->buffer = (void *) g_new(char, t->system_description->ltt_block_size); |
6cd62ccf |
189 | |
963b5f2d |
190 | //read the first block |
191 | if(readBlock(tf,1)) exit(1); |
6cd62ccf |
192 | |
193 | return tf; |
194 | } |
195 | |
6cd62ccf |
196 | |
197 | /***************************************************************************** |
963b5f2d |
198 | *Open control and per cpu tracefiles |
6cd62ccf |
199 | ****************************************************************************/ |
200 | |
963b5f2d |
201 | void ltt_tracefile_open_cpu(LttTrace *t, char * tracefile_name) |
6cd62ccf |
202 | { |
963b5f2d |
203 | LttTracefile * tf; |
204 | tf = ltt_tracefile_open(t,tracefile_name); |
4a6c8e36 |
205 | if(!tf) return; |
963b5f2d |
206 | t->per_cpu_tracefile_number++; |
207 | g_ptr_array_add(t->per_cpu_tracefiles, tf); |
6cd62ccf |
208 | } |
209 | |
963b5f2d |
210 | void ltt_tracefile_open_control(LttTrace *t, char * control_name) |
6cd62ccf |
211 | { |
963b5f2d |
212 | LttTracefile * tf; |
213 | LttEvent * ev; |
214 | LttFacility * f; |
cbd41522 |
215 | guint16 evId; |
963b5f2d |
216 | void * pos; |
217 | FacilityLoad fLoad; |
218 | int i; |
219 | |
220 | tf = ltt_tracefile_open(t,control_name); |
8710c6c7 |
221 | if(!tf) return; |
963b5f2d |
222 | t->control_tracefile_number++; |
223 | g_ptr_array_add(t->control_tracefiles,tf); |
224 | |
225 | //parse facilities tracefile to get base_id |
542ceddd |
226 | if(strcmp(&control_name[strlen(control_name)-10],"facilities") ==0){ |
963b5f2d |
227 | while(1){ |
40331ba8 |
228 | ev = ltt_tracefile_read(tf); |
229 | if(!ev)return; // end of file |
230 | |
231 | if(ev->event_id == TRACE_FACILITY_LOAD){ |
232 | pos = ev->data; |
963b5f2d |
233 | fLoad.name = (char*)pos; |
47a166fc |
234 | fLoad.checksum = *(LttChecksum*)(pos + strlen(fLoad.name)); |
cbd41522 |
235 | fLoad.base_code = *(guint32 *)(pos + strlen(fLoad.name) + sizeof(LttChecksum)); |
963b5f2d |
236 | |
237 | for(i=0;i<t->facility_number;i++){ |
238 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
239 | if(strcmp(f->name,fLoad.name)==0 && fLoad.checksum==f->checksum){ |
240 | f->base_id = fLoad.base_code; |
241 | break; |
242 | } |
243 | } |
244 | if(i==t->facility_number) |
245 | g_error("Facility: %s, checksum: %d is not founded\n", |
246 | fLoad.name,fLoad.checksum); |
40331ba8 |
247 | }else if(ev->event_id == TRACE_BLOCK_START){ |
248 | continue; |
249 | }else if(ev->event_id == TRACE_BLOCK_END){ |
250 | break; |
963b5f2d |
251 | }else g_error("Not valid facilities trace file\n"); |
252 | } |
253 | } |
6cd62ccf |
254 | } |
255 | |
256 | /***************************************************************************** |
257 | *Function name |
963b5f2d |
258 | * ltt_tracefile_close: close a trace file, |
6cd62ccf |
259 | *Input params |
963b5f2d |
260 | * t : tracefile which will be closed |
6cd62ccf |
261 | ****************************************************************************/ |
262 | |
963b5f2d |
263 | void ltt_tracefile_close(LttTracefile *t) |
6cd62ccf |
264 | { |
963b5f2d |
265 | g_free(t->name); |
266 | g_free(t->buffer); |
663bd9ff |
267 | close(t->fd); |
963b5f2d |
268 | g_free(t); |
269 | } |
6cd62ccf |
270 | |
6cd62ccf |
271 | |
963b5f2d |
272 | /***************************************************************************** |
273 | *Get system information |
274 | ****************************************************************************/ |
275 | void getSystemInfo(LttSystemDescription* des, char * pathname) |
276 | { |
277 | FILE * fp; |
963b5f2d |
278 | char buf[DIR_NAME_SIZE]; |
279 | char description[4*DIR_NAME_SIZE]; |
43da6a59 |
280 | |
281 | GMarkupParseContext * context; |
282 | GError * error; |
283 | GMarkupParser markup_parser = |
284 | { |
285 | parser_start_element, |
286 | parser_end_element, |
287 | parser_characters, |
288 | NULL, /* passthrough */ |
289 | NULL /* error */ |
290 | }; |
963b5f2d |
291 | |
292 | fp = fopen(pathname,"r"); |
293 | if(!fp){ |
294 | g_error("Can not open file : %s\n", pathname); |
6cd62ccf |
295 | } |
963b5f2d |
296 | |
43da6a59 |
297 | context = g_markup_parse_context_new(&markup_parser, 0, des,NULL); |
6cd62ccf |
298 | |
43da6a59 |
299 | while(fgets(buf,DIR_NAME_SIZE, fp) != NULL){ |
300 | if(!g_markup_parse_context_parse(context, buf, DIR_NAME_SIZE, &error)){ |
301 | g_warning("Can not parse xml file: \n%s\n", error->message); |
302 | exit(1); |
303 | } |
963b5f2d |
304 | } |
963b5f2d |
305 | fclose(fp); |
6cd62ccf |
306 | } |
307 | |
308 | /***************************************************************************** |
963b5f2d |
309 | *The following functions get facility/tracefile information |
6cd62ccf |
310 | ****************************************************************************/ |
311 | |
963b5f2d |
312 | void getFacilityInfo(LttTrace *t, char* eventdefs) |
6cd62ccf |
313 | { |
963b5f2d |
314 | DIR * dir; |
315 | struct dirent *entry; |
316 | char * ptr; |
317 | int i,j; |
318 | LttFacility * f; |
319 | LttEventType * et; |
e8bb1a73 |
320 | char name[DIR_NAME_SIZE]; |
963b5f2d |
321 | |
322 | dir = opendir(eventdefs); |
323 | if(!dir) g_error("Can not open directory: %s\n", eventdefs); |
324 | |
325 | while((entry = readdir(dir)) != NULL){ |
326 | ptr = &entry->d_name[strlen(entry->d_name)-4]; |
327 | if(strcmp(ptr,".xml") != 0) continue; |
e8bb1a73 |
328 | strcpy(name,eventdefs); |
329 | strcat(name,entry->d_name); |
330 | ltt_facility_open(t,name); |
963b5f2d |
331 | } |
332 | closedir(dir); |
333 | |
963b5f2d |
334 | for(j=0;j<t->facility_number;j++){ |
8710c6c7 |
335 | f = (LttFacility*)g_ptr_array_index(t->facilities, j); |
963b5f2d |
336 | for(i=0; i<f->event_number; i++){ |
337 | et = f->events[i]; |
40331ba8 |
338 | setFieldsOffset(NULL, et, NULL, t); |
963b5f2d |
339 | } |
340 | } |
341 | } |
6cd62ccf |
342 | |
963b5f2d |
343 | void getControlFileInfo(LttTrace *t, char* control) |
6cd62ccf |
344 | { |
963b5f2d |
345 | DIR * dir; |
346 | struct dirent *entry; |
e8bb1a73 |
347 | char name[DIR_NAME_SIZE]; |
963b5f2d |
348 | |
349 | dir = opendir(control); |
350 | if(!dir) g_error("Can not open directory: %s\n", control); |
351 | |
352 | while((entry = readdir(dir)) != NULL){ |
8710c6c7 |
353 | if(strcmp(entry->d_name,"facilities") != 0 && |
354 | strcmp(entry->d_name,"interrupts") != 0 && |
963b5f2d |
355 | strcmp(entry->d_name,"processes") != 0) continue; |
356 | |
e8bb1a73 |
357 | strcpy(name,control); |
358 | strcat(name,entry->d_name); |
359 | ltt_tracefile_open_control(t,name); |
963b5f2d |
360 | } |
361 | closedir(dir); |
6cd62ccf |
362 | } |
363 | |
963b5f2d |
364 | void getCpuFileInfo(LttTrace *t, char* cpu) |
6cd62ccf |
365 | { |
963b5f2d |
366 | DIR * dir; |
367 | struct dirent *entry; |
e8bb1a73 |
368 | char name[DIR_NAME_SIZE]; |
963b5f2d |
369 | |
370 | dir = opendir(cpu); |
371 | if(!dir) g_error("Can not open directory: %s\n", cpu); |
372 | |
373 | while((entry = readdir(dir)) != NULL){ |
8710c6c7 |
374 | if(strcmp(entry->d_name,".") != 0 && |
a614481a |
375 | strcmp(entry->d_name,"..") != 0 && |
376 | strcmp(entry->d_name,".svn") != 0){ |
e8bb1a73 |
377 | strcpy(name,cpu); |
378 | strcat(name,entry->d_name); |
379 | ltt_tracefile_open_cpu(t,name); |
963b5f2d |
380 | }else continue; |
381 | } |
382 | closedir(dir); |
6cd62ccf |
383 | } |
384 | |
963b5f2d |
385 | /***************************************************************************** |
386 | *A trace is specified as a pathname to the directory containing all the |
387 | *associated data (control tracefiles, per cpu tracefiles, event |
388 | *descriptions...). |
389 | * |
390 | *When a trace is closed, all the associated facilities, types and fields |
391 | *are released as well. |
803229fa |
392 | * |
ef35d837 |
393 | * MD : Fixed this function so it uses realpath, dealing well with |
394 | * forgotten cases (.. were not used correctly before). |
803229fa |
395 | * |
963b5f2d |
396 | ****************************************************************************/ |
6cd62ccf |
397 | |
9f797243 |
398 | void get_absolute_pathname(const char *pathname, char * abs_pathname) |
399 | { |
400 | char * ptr, *ptr1; |
401 | size_t size = DIR_NAME_SIZE; |
402 | abs_pathname[0] = '\0'; |
803229fa |
403 | |
ef35d837 |
404 | if ( realpath (pathname, abs_pathname) != NULL) |
405 | return; |
406 | else |
407 | { |
408 | // FIXME : Path is wrong, is it ok to return the pathname unmodified ? |
409 | strcpy(abs_pathname, pathname); |
9f797243 |
410 | return; |
411 | } |
803229fa |
412 | |
ef35d837 |
413 | return; |
9f797243 |
414 | |
9f797243 |
415 | } |
416 | |
f7afe191 |
417 | LttTrace *ltt_trace_open(const char *pathname) |
6cd62ccf |
418 | { |
963b5f2d |
419 | LttTrace * t; |
420 | LttSystemDescription * sys_description; |
421 | char eventdefs[DIR_NAME_SIZE]; |
422 | char info[DIR_NAME_SIZE]; |
423 | char control[DIR_NAME_SIZE]; |
424 | char cpu[DIR_NAME_SIZE]; |
425 | char tmp[DIR_NAME_SIZE]; |
9f797243 |
426 | char abs_path[DIR_NAME_SIZE]; |
963b5f2d |
427 | gboolean has_slash = FALSE; |
428 | |
9f797243 |
429 | get_absolute_pathname(pathname, abs_path); |
963b5f2d |
430 | //establish the pathname to different directories |
9f797243 |
431 | if(abs_path[strlen(abs_path)-1] == '/')has_slash = TRUE; |
432 | strcpy(eventdefs,abs_path); |
963b5f2d |
433 | if(!has_slash)strcat(eventdefs,"/"); |
434 | strcat(eventdefs,"eventdefs/"); |
435 | |
9f797243 |
436 | strcpy(info,abs_path); |
963b5f2d |
437 | if(!has_slash)strcat(info,"/"); |
438 | strcat(info,"info/"); |
439 | |
9f797243 |
440 | strcpy(control,abs_path); |
963b5f2d |
441 | if(!has_slash)strcat(control,"/"); |
442 | strcat(control,"control/"); |
443 | |
9f797243 |
444 | strcpy(cpu,abs_path); |
963b5f2d |
445 | if(!has_slash)strcat(cpu,"/"); |
446 | strcat(cpu,"cpu/"); |
447 | |
448 | //new trace |
449 | t = g_new(LttTrace, 1); |
450 | sys_description = g_new(LttSystemDescription, 1); |
9f797243 |
451 | t->pathname = g_strdup(abs_path); |
963b5f2d |
452 | t->facility_number = 0; |
453 | t->control_tracefile_number = 0; |
454 | t->per_cpu_tracefile_number = 0; |
455 | t->system_description = sys_description; |
456 | t->control_tracefiles = g_ptr_array_new(); |
457 | t->per_cpu_tracefiles = g_ptr_array_new(); |
458 | t->facilities = g_ptr_array_new(); |
459 | getDataEndianType(&(t->my_arch_size), &(t->my_arch_endian)); |
460 | |
461 | //get system description |
462 | strcpy(tmp,info); |
463 | strcat(tmp,"system.xml"); |
464 | getSystemInfo(sys_description, tmp); |
465 | |
b333a76b |
466 | //get facilities info |
467 | getFacilityInfo(t,eventdefs); |
468 | |
963b5f2d |
469 | //get control tracefile info |
470 | getControlFileInfo(t,control); |
471 | |
472 | //get cpu tracefile info |
473 | getCpuFileInfo(t,cpu); |
474 | |
963b5f2d |
475 | return t; |
6cd62ccf |
476 | } |
477 | |
49bf71b5 |
478 | char * ltt_trace_name(LttTrace *t) |
479 | { |
480 | return t->pathname; |
481 | } |
482 | |
483 | |
f7afe191 |
484 | /****************************************************************************** |
485 | * When we copy a trace, we want all the opening actions to happen again : |
486 | * the trace will be reopened and totally independant from the original. |
487 | * That's why we call ltt_trace_open. |
488 | *****************************************************************************/ |
489 | LttTrace *ltt_trace_copy(LttTrace *self) |
490 | { |
491 | return ltt_trace_open(self->pathname); |
492 | } |
493 | |
963b5f2d |
494 | void ltt_trace_close(LttTrace *t) |
6cd62ccf |
495 | { |
963b5f2d |
496 | int i; |
497 | LttTracefile * tf; |
498 | LttFacility * f; |
499 | |
500 | g_free(t->pathname); |
501 | |
502 | //free system_description |
503 | g_free(t->system_description->description); |
504 | g_free(t->system_description->node_name); |
505 | g_free(t->system_description->domain_name); |
506 | g_free(t->system_description->kernel_name); |
507 | g_free(t->system_description->kernel_release); |
508 | g_free(t->system_description->kernel_version); |
509 | g_free(t->system_description->machine); |
510 | g_free(t->system_description->processor); |
511 | g_free(t->system_description->hardware_platform); |
512 | g_free(t->system_description->operating_system); |
513 | g_free(t->system_description); |
514 | |
515 | //free control_tracefiles |
516 | for(i=0;i<t->control_tracefile_number;i++){ |
517 | tf = (LttTracefile*)g_ptr_array_index(t->control_tracefiles,i); |
518 | ltt_tracefile_close(tf); |
519 | } |
09ad4797 |
520 | g_ptr_array_free(t->control_tracefiles, TRUE); |
963b5f2d |
521 | |
522 | //free per_cpu_tracefiles |
523 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
524 | tf = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles,i); |
525 | ltt_tracefile_close(tf); |
526 | } |
09ad4797 |
527 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
963b5f2d |
528 | |
529 | //free facilities |
530 | for(i=0;i<t->facility_number;i++){ |
531 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
532 | ltt_facility_close(f); |
533 | } |
09ad4797 |
534 | g_ptr_array_free(t->facilities, TRUE); |
963b5f2d |
535 | |
536 | g_free(t); |
09ad4797 |
537 | |
538 | g_blow_chunks(); |
6cd62ccf |
539 | } |
540 | |
963b5f2d |
541 | |
6cd62ccf |
542 | /***************************************************************************** |
963b5f2d |
543 | *Get the system description of the trace |
6cd62ccf |
544 | ****************************************************************************/ |
545 | |
963b5f2d |
546 | LttSystemDescription *ltt_trace_system_description(LttTrace *t) |
6cd62ccf |
547 | { |
963b5f2d |
548 | return t->system_description; |
6cd62ccf |
549 | } |
550 | |
551 | /***************************************************************************** |
963b5f2d |
552 | * The following functions discover the facilities of the trace |
6cd62ccf |
553 | ****************************************************************************/ |
554 | |
963b5f2d |
555 | unsigned ltt_trace_facility_number(LttTrace *t) |
556 | { |
557 | return (unsigned)(t->facility_number); |
558 | } |
559 | |
560 | LttFacility *ltt_trace_facility_get(LttTrace *t, unsigned i) |
6cd62ccf |
561 | { |
963b5f2d |
562 | return (LttFacility*)g_ptr_array_index(t->facilities, i); |
6cd62ccf |
563 | } |
564 | |
565 | /***************************************************************************** |
566 | *Function name |
963b5f2d |
567 | * ltt_trace_facility_find : find facilities in the trace |
6cd62ccf |
568 | *Input params |
963b5f2d |
569 | * t : the trace |
570 | * name : facility name |
571 | *Output params |
572 | * position : position of the facility in the trace |
6cd62ccf |
573 | *Return value |
963b5f2d |
574 | * : the number of facilities |
6cd62ccf |
575 | ****************************************************************************/ |
576 | |
963b5f2d |
577 | unsigned ltt_trace_facility_find(LttTrace *t, char *name, unsigned *position) |
6cd62ccf |
578 | { |
963b5f2d |
579 | int i, count=0; |
580 | LttFacility * f; |
8a3005f3 |
581 | for(i=0;i<t->facility_number;i++){ |
963b5f2d |
582 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
583 | if(strcmp(f->name,name)==0){ |
584 | count++; |
585 | if(count==1) *position = i; |
586 | }else{ |
587 | if(count) break; |
588 | } |
589 | } |
590 | return count; |
6cd62ccf |
591 | } |
592 | |
593 | /***************************************************************************** |
963b5f2d |
594 | * Functions to discover all the event types in the trace |
6cd62ccf |
595 | ****************************************************************************/ |
596 | |
963b5f2d |
597 | unsigned ltt_trace_eventtype_number(LttTrace *t) |
6cd62ccf |
598 | { |
963b5f2d |
599 | int i; |
600 | unsigned count = 0; |
601 | LttFacility * f; |
b445142a |
602 | for(i=0;i<t->facility_number;i++){ |
963b5f2d |
603 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
604 | count += f->event_number; |
605 | } |
606 | return count; |
6cd62ccf |
607 | } |
608 | |
963b5f2d |
609 | LttFacility * ltt_trace_facility_by_id(LttTrace * trace, unsigned id) |
6cd62ccf |
610 | { |
963b5f2d |
611 | LttFacility * facility; |
612 | int i; |
613 | for(i=0;i<trace->facility_number;i++){ |
614 | facility = (LttFacility*) g_ptr_array_index(trace->facilities,i); |
615 | if(id >= facility->base_id && |
616 | id < facility->base_id + facility->event_number) |
617 | break; |
618 | } |
619 | if(i==trace->facility_number) return NULL; |
620 | else return facility; |
6cd62ccf |
621 | } |
622 | |
963b5f2d |
623 | LttEventType *ltt_trace_eventtype_get(LttTrace *t, unsigned evId) |
6cd62ccf |
624 | { |
963b5f2d |
625 | LttFacility * f; |
626 | f = ltt_trace_facility_by_id(t,evId); |
627 | if(!f) return NULL; |
628 | return f->events[evId - f->base_id]; |
6cd62ccf |
629 | } |
630 | |
631 | /***************************************************************************** |
963b5f2d |
632 | *There is one "per cpu" tracefile for each CPU, numbered from 0 to |
633 | *the maximum number of CPU in the system. When the number of CPU installed |
634 | *is less than the maximum, some positions are unused. There are also a |
635 | *number of "control" tracefiles (facilities, interrupts...). |
6cd62ccf |
636 | ****************************************************************************/ |
963b5f2d |
637 | unsigned ltt_trace_control_tracefile_number(LttTrace *t) |
6cd62ccf |
638 | { |
963b5f2d |
639 | return t->control_tracefile_number; |
6cd62ccf |
640 | } |
641 | |
963b5f2d |
642 | unsigned ltt_trace_per_cpu_tracefile_number(LttTrace *t) |
6cd62ccf |
643 | { |
963b5f2d |
644 | return t->per_cpu_tracefile_number; |
6cd62ccf |
645 | } |
646 | |
647 | /***************************************************************************** |
963b5f2d |
648 | *It is possible to search for the tracefiles by name or by CPU position. |
649 | *The index within the tracefiles of the same type is returned if found |
650 | *and a negative value otherwise. |
6cd62ccf |
651 | ****************************************************************************/ |
652 | |
963b5f2d |
653 | int ltt_trace_control_tracefile_find(LttTrace *t, char *name) |
6cd62ccf |
654 | { |
963b5f2d |
655 | LttTracefile * tracefile; |
656 | int i; |
657 | for(i=0;i<t->control_tracefile_number;i++){ |
658 | tracefile = (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i); |
659 | if(strcmp(tracefile->name, name)==0)break; |
660 | } |
661 | if(i == t->control_tracefile_number) return -1; |
662 | return i; |
6cd62ccf |
663 | } |
664 | |
963b5f2d |
665 | int ltt_trace_per_cpu_tracefile_find(LttTrace *t, unsigned i) |
6cd62ccf |
666 | { |
963b5f2d |
667 | LttTracefile * tracefile; |
668 | int j, name; |
669 | for(j=0;j<t->per_cpu_tracefile_number;j++){ |
670 | tracefile = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, j); |
671 | name = atoi(tracefile->name); |
672 | if(name == (int)i)break; |
673 | } |
674 | if(j == t->per_cpu_tracefile_number) return -1; |
675 | return j; |
6cd62ccf |
676 | } |
677 | |
678 | /***************************************************************************** |
963b5f2d |
679 | *Get a specific tracefile |
6cd62ccf |
680 | ****************************************************************************/ |
681 | |
963b5f2d |
682 | LttTracefile *ltt_trace_control_tracefile_get(LttTrace *t, unsigned i) |
6cd62ccf |
683 | { |
5598cfe3 |
684 | return (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i); |
963b5f2d |
685 | } |
686 | |
687 | LttTracefile *ltt_trace_per_cpu_tracefile_get(LttTrace *t, unsigned i) |
688 | { |
689 | return (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, i); |
6cd62ccf |
690 | } |
691 | |
487ad181 |
692 | /***************************************************************************** |
693 | * Get the start time and end time of the trace |
694 | ****************************************************************************/ |
695 | |
696 | void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end) |
697 | { |
698 | LttTime startSmall, startTmp, endBig, endTmp; |
699 | int i, j=0; |
700 | LttTracefile * tf; |
701 | |
702 | for(i=0;i<t->control_tracefile_number;i++){ |
703 | tf = g_ptr_array_index(t->control_tracefiles, i); |
704 | readBlock(tf,1); |
705 | startTmp = tf->a_block_start->time; |
706 | readBlock(tf,tf->block_number); |
707 | endTmp = tf->a_block_end->time; |
708 | if(i==0){ |
709 | startSmall = startTmp; |
710 | endBig = endTmp; |
711 | j = 1; |
712 | continue; |
713 | } |
308711e5 |
714 | if(ltt_time_compare(startSmall,startTmp) > 0) startSmall = startTmp; |
715 | if(ltt_time_compare(endBig,endTmp) < 0) endBig = endTmp; |
487ad181 |
716 | } |
717 | |
718 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
719 | tf = g_ptr_array_index(t->per_cpu_tracefiles, i); |
720 | readBlock(tf,1); |
721 | startTmp = tf->a_block_start->time; |
722 | readBlock(tf,tf->block_number); |
723 | endTmp = tf->a_block_end->time; |
724 | if(j == 0 && i==0){ |
725 | startSmall = startTmp; |
726 | endBig = endTmp; |
727 | continue; |
728 | } |
308711e5 |
729 | if(ltt_time_compare(startSmall,startTmp) > 0) startSmall = startTmp; |
730 | if(ltt_time_compare(endBig,endTmp) < 0) endBig = endTmp; |
487ad181 |
731 | } |
732 | |
733 | *start = startSmall; |
734 | *end = endBig; |
735 | } |
736 | |
737 | |
6cd62ccf |
738 | /***************************************************************************** |
963b5f2d |
739 | *Get the name of a tracefile |
6cd62ccf |
740 | ****************************************************************************/ |
741 | |
963b5f2d |
742 | char *ltt_tracefile_name(LttTracefile *tf) |
6cd62ccf |
743 | { |
963b5f2d |
744 | return tf->name; |
6cd62ccf |
745 | } |
746 | |
80da81ad |
747 | /***************************************************************************** |
748 | * Get the number of blocks in the tracefile |
749 | ****************************************************************************/ |
750 | |
751 | unsigned ltt_tracefile_block_number(LttTracefile *tf) |
752 | { |
753 | return tf->block_number; |
754 | } |
755 | |
6cd62ccf |
756 | /***************************************************************************** |
757 | *Function name |
758 | * ltt_tracefile_seek_time: seek to the first event of the trace with time |
759 | * larger or equal to time |
760 | *Input params |
761 | * t : tracefile |
762 | * time : criteria of the time |
6cd62ccf |
763 | ****************************************************************************/ |
caf7a67a |
764 | void ltt_tracefile_find_time_block(LttTracefile *t, LttTime time, |
765 | int start_block, int end_block) |
766 | { |
767 | int err, tmp_block, s, e; |
768 | int headTime; |
769 | int tailTime; |
770 | |
771 | err=readBlock(t,start_block); |
772 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
773 | if(start_block == end_block)return; |
774 | |
775 | tailTime = ltt_time_compare(t->a_block_end->time, time); |
776 | if(tailTime >= 0) return; |
777 | |
778 | err=readBlock(t,end_block); |
779 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
780 | if(start_block+1 == end_block)return; |
781 | |
782 | headTime = ltt_time_compare(t->a_block_start->time, time); |
783 | if(headTime <= 0 ) return; |
784 | |
785 | tmp_block = (end_block + start_block)/2; |
786 | err=readBlock(t,tmp_block); |
787 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
788 | |
789 | headTime = ltt_time_compare(t->a_block_start->time, time); |
790 | tailTime = ltt_time_compare(t->a_block_end->time, time); |
791 | if(headTime <= 0 && tailTime >= 0) return; |
792 | |
793 | if(headTime > 0){ |
794 | s = start_block + 1; |
795 | e = tmp_block - 1; |
796 | if(s <= e) |
797 | ltt_tracefile_find_time_block(t, time, s, e); |
798 | else return; |
799 | } |
800 | |
801 | if(tailTime < 0){ |
802 | s = tmp_block + 1; |
803 | e = end_block - 1; |
804 | if(s <= e) |
805 | ltt_tracefile_find_time_block(t, time, s, e); |
806 | else return; |
807 | } |
808 | } |
809 | |
810 | void ltt_tracefile_backward_find_time_block(LttTracefile *t, LttTime time) |
811 | { |
812 | int t_time, h_time, err; |
813 | err=readBlock(t,t->which_block-1); |
814 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
815 | h_time = ltt_time_compare(t->a_block_start->time, time); |
816 | t_time = ltt_time_compare(t->a_block_end->time, time); |
817 | if(h_time == 0){ |
818 | int tmp; |
819 | if(t->which_block == 1) return; |
820 | err=readBlock(t,t->which_block-1); |
821 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
822 | tmp = ltt_time_compare(t->a_block_end->time, time); |
823 | if(tmp == 0) return ltt_tracefile_seek_time(t, time); |
824 | err=readBlock(t,t->which_block+1); |
825 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
826 | }else if(h_time > 0){ |
827 | ltt_tracefile_find_time_block(t, time, 1, t->which_block); |
828 | return ltt_tracefile_seek_time(t, time) ; |
829 | }else{ |
830 | if(t_time >= 0) return ltt_tracefile_seek_time(t, time); |
831 | err=readBlock(t,t->which_block+1); |
832 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
833 | } |
834 | } |
6cd62ccf |
835 | |
963b5f2d |
836 | void ltt_tracefile_seek_time(LttTracefile *t, LttTime time) |
6cd62ccf |
837 | { |
838 | int err; |
963b5f2d |
839 | LttTime lttTime; |
308711e5 |
840 | int headTime = ltt_time_compare(t->a_block_start->time, time); |
841 | int tailTime = ltt_time_compare(t->a_block_end->time, time); |
62e55dd6 |
842 | LttEvent * ev; |
843 | |
6cd62ccf |
844 | if(headTime < 0 && tailTime > 0){ |
308711e5 |
845 | if(ltt_time_compare(t->a_block_end->time, t->current_event_time) !=0) { |
db55eaae |
846 | lttTime = getEventTime(t); |
308711e5 |
847 | err = ltt_time_compare(lttTime, time); |
db55eaae |
848 | if(err > 0){ |
308711e5 |
849 | if(t->which_event==2 || (&t->prev_event_time,&time)<0){ |
1a3b8cbd |
850 | return; |
db55eaae |
851 | }else{ |
852 | updateTracefile(t); |
853 | return ltt_tracefile_seek_time(t, time); |
1a3b8cbd |
854 | } |
db55eaae |
855 | }else if(err < 0){ |
856 | while(1){ |
857 | ev = ltt_tracefile_read(t); |
858 | if(ev == NULL){ |
859 | g_print("End of file\n"); |
860 | return; |
861 | } |
862 | lttTime = getEventTime(t); |
308711e5 |
863 | err = ltt_time_compare(lttTime, time); |
db55eaae |
864 | if(err >= 0)return; |
865 | } |
866 | }else return; |
867 | }else{//we are at the end of the block |
868 | updateTracefile(t); |
869 | return ltt_tracefile_seek_time(t, time); |
870 | } |
e37c1372 |
871 | }else if(headTime >= 0){ |
6cd62ccf |
872 | if(t->which_block == 1){ |
873 | updateTracefile(t); |
874 | }else{ |
1ee6a9af |
875 | if(ltt_time_compare(t->prev_block_end_time, time) >= 0 || |
876 | (t->prev_block_end_time.tv_sec == 0 && |
877 | t->prev_block_end_time.tv_nsec == 0 )){ |
caf7a67a |
878 | ltt_tracefile_backward_find_time_block(t, time); |
6cd62ccf |
879 | }else{ |
880 | updateTracefile(t); |
881 | } |
882 | } |
40331ba8 |
883 | }else if(tailTime < 0){ |
6cd62ccf |
884 | if(t->which_block != t->block_number){ |
caf7a67a |
885 | ltt_tracefile_find_time_block(t, time, t->which_block+1, t->block_number); |
886 | return ltt_tracefile_seek_time(t, time); |
963b5f2d |
887 | }else { |
a8c0f09d |
888 | t->cur_event_pos = t->buffer + t->block_size; |
889 | g_print("End of file\n"); |
963b5f2d |
890 | return; |
891 | } |
40331ba8 |
892 | }else if(tailTime == 0){ |
e37c1372 |
893 | t->cur_event_pos = t->last_event_pos; |
62e55dd6 |
894 | t->current_event_time = time; |
895 | t->cur_heart_beat_number = 0; |
896 | t->prev_event_time.tv_sec = 0; |
897 | t->prev_event_time.tv_nsec = 0; |
40331ba8 |
898 | return; |
6cd62ccf |
899 | } |
6cd62ccf |
900 | } |
901 | |
80da81ad |
902 | /***************************************************************************** |
903 | * Seek to the first event with position equal or larger to ep |
904 | ****************************************************************************/ |
905 | |
04b44e05 |
906 | void ltt_tracefile_seek_position(LttTracefile *t, const LttEventPosition *ep) |
80da81ad |
907 | { |
908 | //if we are at the right place, just return |
909 | if(t->which_block == ep->block_num && t->which_event == ep->event_num) |
910 | return; |
911 | |
912 | if(t->which_block == ep->block_num) updateTracefile(t); |
913 | else readBlock(t,ep->block_num); |
914 | |
915 | //event offset is availiable |
916 | if(ep->old_position){ |
917 | t->cur_heart_beat_number = ep->heart_beat_number; |
918 | t->cur_event_pos = t->buffer + ep->event_offset; |
919 | return; |
920 | } |
921 | |
922 | //only block number and event index are availiable |
923 | while(t->which_event < ep->event_num) ltt_tracefile_read(t); |
924 | |
925 | return; |
926 | } |
927 | |
6cd62ccf |
928 | /***************************************************************************** |
929 | *Function name |
40331ba8 |
930 | * ltt_tracefile_read : read the current event, set the pointer to the next |
6cd62ccf |
931 | *Input params |
932 | * t : tracefile |
933 | *Return value |
963b5f2d |
934 | * LttEvent * : an event to be processed |
6cd62ccf |
935 | ****************************************************************************/ |
936 | |
963b5f2d |
937 | LttEvent *ltt_tracefile_read(LttTracefile *t) |
6cd62ccf |
938 | { |
7525f9e5 |
939 | LttEvent * lttEvent = &t->an_event; |
963b5f2d |
940 | int err; |
6cd62ccf |
941 | |
bdc36259 |
942 | if(t->cur_event_pos == t->buffer + t->block_size){ |
943 | if(t->which_block == t->block_number){ |
bdc36259 |
944 | return NULL; |
945 | } |
946 | err = readBlock(t, t->which_block + 1); |
947 | if(err)g_error("Can not read tracefile"); |
948 | } |
949 | |
cbd41522 |
950 | lttEvent->event_id = (int)(*(guint16 *)(t->cur_event_pos)); |
963b5f2d |
951 | if(lttEvent->event_id == TRACE_TIME_HEARTBEAT) |
952 | t->cur_heart_beat_number++; |
6cd62ccf |
953 | |
40331ba8 |
954 | t->prev_event_time = t->current_event_time; |
62e55dd6 |
955 | // t->current_event_time = getEventTime(t); |
6cd62ccf |
956 | |
cbd41522 |
957 | lttEvent->time_delta = *(guint32 *)(t->cur_event_pos + EVENT_ID_SIZE); |
963b5f2d |
958 | lttEvent->event_time = t->current_event_time; |
338d4282 |
959 | lttEvent->event_cycle_count = t->cur_cycle_count; |
963b5f2d |
960 | |
6cd62ccf |
961 | lttEvent->tracefile = t; |
962 | lttEvent->data = t->cur_event_pos + EVENT_HEADER_SIZE; |
908f42fa |
963 | lttEvent->which_block = t->which_block; |
964 | lttEvent->which_event = t->which_event; |
6cd62ccf |
965 | |
40331ba8 |
966 | //update the fields of the current event and go to the next event |
967 | err = skipEvent(t); |
40331ba8 |
968 | if(err == ERANGE) g_error("event id is out of range\n"); |
40331ba8 |
969 | |
6cd62ccf |
970 | return lttEvent; |
971 | } |
972 | |
973 | /**************************************************************************** |
974 | *Function name |
975 | * readFile : wrap function to read from a file |
976 | *Input Params |
977 | * fd : file descriptor |
978 | * buf : buf to contain the content |
979 | * size : number of bytes to be read |
980 | * mesg : message to be printed if some thing goes wrong |
981 | *return value |
982 | * 0 : success |
983 | * EIO : can not read from the file |
984 | ****************************************************************************/ |
985 | |
986 | int readFile(int fd, void * buf, size_t size, char * mesg) |
987 | { |
988 | ssize_t nbBytes; |
989 | nbBytes = read(fd, buf, size); |
990 | if(nbBytes != size){ |
991 | printf("%s\n",mesg); |
992 | return EIO; |
993 | } |
994 | return 0; |
995 | } |
996 | |
997 | /**************************************************************************** |
998 | *Function name |
999 | * readBlock : read a block from the file |
1000 | *Input Params |
1001 | * lttdes : ltt trace file |
1002 | * whichBlock : the block which will be read |
1003 | *return value |
1004 | * 0 : success |
1005 | * EINVAL : lseek fail |
1006 | * EIO : can not read from the file |
1007 | ****************************************************************************/ |
1008 | |
963b5f2d |
1009 | int readBlock(LttTracefile * tf, int whichBlock) |
6cd62ccf |
1010 | { |
1011 | off_t nbBytes; |
cbd41522 |
1012 | guint32 lostSize; |
6cd62ccf |
1013 | |
1014 | if(whichBlock - tf->which_block == 1 && tf->which_block != 0){ |
963b5f2d |
1015 | tf->prev_block_end_time = tf->a_block_end->time; |
40331ba8 |
1016 | tf->prev_event_time = tf->a_block_end->time; |
6cd62ccf |
1017 | }else{ |
1018 | tf->prev_block_end_time.tv_sec = 0; |
1019 | tf->prev_block_end_time.tv_nsec = 0; |
40331ba8 |
1020 | tf->prev_event_time.tv_sec = 0; |
1021 | tf->prev_event_time.tv_nsec = 0; |
6cd62ccf |
1022 | } |
6cd62ccf |
1023 | |
963b5f2d |
1024 | nbBytes=lseek(tf->fd,(off_t)((whichBlock-1)*tf->block_size), SEEK_SET); |
6cd62ccf |
1025 | if(nbBytes == -1) return EINVAL; |
1026 | |
963b5f2d |
1027 | if(readFile(tf->fd,tf->buffer,tf->block_size,"Unable to read a block")) |
1028 | return EIO; |
6cd62ccf |
1029 | |
963b5f2d |
1030 | tf->a_block_start=(BlockStart *) (tf->buffer + EVENT_HEADER_SIZE); |
cbd41522 |
1031 | lostSize = *(guint32 *)(tf->buffer + tf->block_size - sizeof(guint32)); |
963b5f2d |
1032 | tf->a_block_end=(BlockEnd *)(tf->buffer + tf->block_size - |
1033 | lostSize + EVENT_HEADER_SIZE); |
e37c1372 |
1034 | tf->last_event_pos = tf->buffer + tf->block_size - lostSize; |
6cd62ccf |
1035 | |
6cd62ccf |
1036 | tf->which_block = whichBlock; |
963b5f2d |
1037 | tf->which_event = 1; |
40331ba8 |
1038 | tf->cur_event_pos = tf->buffer;//the beginning of the block, block start ev |
6cd62ccf |
1039 | tf->cur_heart_beat_number = 0; |
963b5f2d |
1040 | |
6cd62ccf |
1041 | getCyclePerNsec(tf); |
1042 | |
62e55dd6 |
1043 | tf->current_event_time = getEventTime(tf); |
40331ba8 |
1044 | |
6cd62ccf |
1045 | return 0; |
1046 | } |
1047 | |
1048 | /***************************************************************************** |
1049 | *Function name |
1050 | * updateTracefile : reinitialize the info of the block which is already |
1051 | * in the buffer |
1052 | *Input params |
1053 | * tf : tracefile |
1054 | ****************************************************************************/ |
1055 | |
963b5f2d |
1056 | void updateTracefile(LttTracefile * tf) |
6cd62ccf |
1057 | { |
963b5f2d |
1058 | tf->which_event = 1; |
40331ba8 |
1059 | tf->cur_event_pos = tf->buffer; |
62e55dd6 |
1060 | tf->current_event_time = getEventTime(tf); |
6cd62ccf |
1061 | tf->cur_heart_beat_number = 0; |
1062 | |
1063 | tf->prev_event_time.tv_sec = 0; |
1064 | tf->prev_event_time.tv_nsec = 0; |
1065 | } |
1066 | |
1067 | /***************************************************************************** |
1068 | *Function name |
1069 | * skipEvent : go to the next event, update the fields of the current event |
1070 | *Input params |
1071 | * t : tracefile |
1072 | *return value |
1073 | * 0 : success |
6cd62ccf |
1074 | * ERANGE : event id is out of range |
1075 | ****************************************************************************/ |
1076 | |
963b5f2d |
1077 | int skipEvent(LttTracefile * t) |
6cd62ccf |
1078 | { |
1079 | int evId, err; |
1080 | void * evData; |
963b5f2d |
1081 | LttEventType * evT; |
1082 | LttField * rootFld; |
6cd62ccf |
1083 | |
cbd41522 |
1084 | evId = (int)(*(guint16 *)(t->cur_event_pos)); |
6cd62ccf |
1085 | evData = t->cur_event_pos + EVENT_HEADER_SIZE; |
6cd62ccf |
1086 | |
908f42fa |
1087 | evT = ltt_trace_eventtype_get(t->trace,(unsigned)evId); |
47a166fc |
1088 | |
908f42fa |
1089 | if(evT) rootFld = evT->root_field; |
1090 | else return ERANGE; |
6cd62ccf |
1091 | |
908f42fa |
1092 | if(rootFld){ |
1093 | //event has string/sequence or the last event is not the same event |
1094 | if((evT->latest_block!=t->which_block || evT->latest_event!=t->which_event) |
1095 | && rootFld->field_fixed == 0){ |
1096 | setFieldsOffset(t, evT, evData, t->trace); |
47a166fc |
1097 | } |
908f42fa |
1098 | t->cur_event_pos += EVENT_HEADER_SIZE + rootFld->field_size; |
1099 | }else t->cur_event_pos += EVENT_HEADER_SIZE; |
1100 | |
1101 | evT->latest_block = t->which_block; |
1102 | evT->latest_event = t->which_event; |
1103 | |
6cd62ccf |
1104 | //the next event is in the next block |
963b5f2d |
1105 | if(evId == TRACE_BLOCK_END){ |
bdc36259 |
1106 | t->cur_event_pos = t->buffer + t->block_size; |
6cd62ccf |
1107 | }else{ |
1108 | t->which_event++; |
62e55dd6 |
1109 | t->current_event_time = getEventTime(t); |
6cd62ccf |
1110 | } |
1111 | |
1112 | return 0; |
1113 | } |
1114 | |
1115 | /***************************************************************************** |
1116 | *Function name |
1117 | * getCyclePerNsec : calculate cycles per nsec for current block |
1118 | *Input Params |
1119 | * t : tracefile |
1120 | ****************************************************************************/ |
1121 | |
963b5f2d |
1122 | void getCyclePerNsec(LttTracefile * t) |
6cd62ccf |
1123 | { |
963b5f2d |
1124 | LttTime lBufTotalTime; /* Total time for this buffer */ |
1125 | LttCycleCount lBufTotalNSec; /* Total time for this buffer in nsecs */ |
1126 | LttCycleCount lBufTotalCycle;/* Total cycles for this buffer */ |
6cd62ccf |
1127 | |
1128 | /* Calculate the total time for this buffer */ |
308711e5 |
1129 | lBufTotalTime = ltt_time_sub(t->a_block_end->time, t->a_block_start->time); |
6cd62ccf |
1130 | |
1131 | /* Calculate the total cycles for this bufffer */ |
e4eced0f |
1132 | lBufTotalCycle = t->a_block_end->cycle_count; |
1133 | lBufTotalCycle -= t->a_block_start->cycle_count; |
6cd62ccf |
1134 | |
1135 | /* Convert the total time to nsecs */ |
e4eced0f |
1136 | lBufTotalNSec = lBufTotalTime.tv_sec; |
308711e5 |
1137 | lBufTotalNSec *= NANOSECONDS_PER_SECOND; |
e4eced0f |
1138 | lBufTotalNSec += lBufTotalTime.tv_nsec; |
6cd62ccf |
1139 | |
1140 | t->cycle_per_nsec = (double)lBufTotalCycle / (double)lBufTotalNSec; |
1141 | } |
1142 | |
1143 | /**************************************************************************** |
1144 | *Function name |
1145 | * getEventTime : obtain the time of an event |
1146 | *Input params |
1147 | * tf : tracefile |
1148 | *Return value |
963b5f2d |
1149 | * LttTime : the time of the event |
6cd62ccf |
1150 | ****************************************************************************/ |
1151 | |
963b5f2d |
1152 | LttTime getEventTime(LttTracefile * tf) |
6cd62ccf |
1153 | { |
963b5f2d |
1154 | LttTime time; |
1155 | LttCycleCount cycle_count; // cycle count for the current event |
1156 | LttCycleCount lEventTotalCycle; // Total cycles from start for event |
338d4282 |
1157 | LttCycleCount lEventNSec; // Total usecs from start for event |
963b5f2d |
1158 | LttTime lTimeOffset; // Time offset in struct LttTime |
cbd41522 |
1159 | guint16 evId; |
338d4282 |
1160 | LttCycleCount tmpCycleCount = (((LttCycleCount)1)<<32); |
e4eced0f |
1161 | |
cbd41522 |
1162 | evId = *(guint16 *)tf->cur_event_pos; |
e4eced0f |
1163 | if(evId == TRACE_BLOCK_START){ |
dd691a2e |
1164 | tf->count = 0; |
1165 | tf->pre_cycle_count = 0; |
e4eced0f |
1166 | tf->cur_cycle_count = tf->a_block_start->cycle_count; |
40331ba8 |
1167 | return tf->a_block_start->time; |
e4eced0f |
1168 | }else if(evId == TRACE_BLOCK_END){ |
dd691a2e |
1169 | tf->count = 0; |
1170 | tf->pre_cycle_count = 0; |
e4eced0f |
1171 | tf->cur_cycle_count = tf->a_block_end->cycle_count; |
40331ba8 |
1172 | return tf->a_block_end->time; |
e4eced0f |
1173 | } |
40331ba8 |
1174 | |
e4eced0f |
1175 | // Calculate total time in cycles from start of buffer for this event |
cbd41522 |
1176 | cycle_count = (LttCycleCount)*(guint32 *)(tf->cur_event_pos + EVENT_ID_SIZE); |
e4eced0f |
1177 | |
dd691a2e |
1178 | if(cycle_count < tf->pre_cycle_count)tf->count++; |
1179 | tf->pre_cycle_count = cycle_count; |
1180 | cycle_count += tmpCycleCount * tf->count; |
e4eced0f |
1181 | |
e9b34357 |
1182 | // if(tf->cur_heart_beat_number > tf->count) |
1183 | // cycle_count += tmpCycleCount * (tf->cur_heart_beat_number - tf->count); |
e4eced0f |
1184 | |
1185 | tf->cur_cycle_count = cycle_count; |
1186 | |
1187 | lEventTotalCycle = cycle_count; |
1188 | lEventTotalCycle -= tf->a_block_start->cycle_count; |
6cd62ccf |
1189 | |
963b5f2d |
1190 | // Convert it to nsecs |
338d4282 |
1191 | lEventNSec = (double)lEventTotalCycle / (double)tf->cycle_per_nsec; |
e4eced0f |
1192 | |
963b5f2d |
1193 | // Determine offset in struct LttTime |
338d4282 |
1194 | lTimeOffset.tv_nsec = lEventNSec % NANOSECONDS_PER_SECOND; |
1195 | lTimeOffset.tv_sec = lEventNSec / NANOSECONDS_PER_SECOND; |
6cd62ccf |
1196 | |
308711e5 |
1197 | time = ltt_time_add(tf->a_block_start->time, lTimeOffset); |
e4eced0f |
1198 | |
6cd62ccf |
1199 | return time; |
1200 | } |
1201 | |
1202 | /***************************************************************************** |
1203 | *Function name |
1204 | * setFieldsOffset : set offset of the fields |
1205 | *Input params |
1206 | * tracefile : opened trace file |
1207 | * evT : the event type |
1208 | * evD : event data, it may be NULL |
1209 | ****************************************************************************/ |
1210 | |
40331ba8 |
1211 | void setFieldsOffset(LttTracefile *tf,LttEventType *evT,void *evD,LttTrace* t) |
6cd62ccf |
1212 | { |
963b5f2d |
1213 | LttField * rootFld = evT->root_field; |
6cd62ccf |
1214 | // rootFld->base_address = evD; |
1215 | |
8710c6c7 |
1216 | if(rootFld) |
1217 | rootFld->field_size = getFieldtypeSize(tf, evT, 0,0,rootFld, evD,t); |
6cd62ccf |
1218 | } |
1219 | |
1220 | /***************************************************************************** |
1221 | *Function name |
1222 | * getFieldtypeSize: get the size of the field type (primitive type) |
1223 | *Input params |
1224 | * tracefile : opened trace file |
1225 | * evT : event type |
1226 | * offsetRoot : offset from the root |
1227 | * offsetParent : offset from the parrent |
1228 | * fld : field |
1229 | * evD : event data, it may be NULL |
1230 | *Return value |
1231 | * int : size of the field |
1232 | ****************************************************************************/ |
1233 | |
963b5f2d |
1234 | int getFieldtypeSize(LttTracefile * t, LttEventType * evT, int offsetRoot, |
40331ba8 |
1235 | int offsetParent, LttField * fld, void *evD, LttTrace *trace) |
6cd62ccf |
1236 | { |
1237 | int size, size1, element_number, i, offset1, offset2; |
963b5f2d |
1238 | LttType * type = fld->field_type; |
6cd62ccf |
1239 | |
8710c6c7 |
1240 | if(t){ |
963b5f2d |
1241 | if(evT->latest_block==t->which_block && evT->latest_event==t->which_event){ |
1242 | return fld->field_size; |
1243 | } |
1244 | } |
6cd62ccf |
1245 | |
1246 | if(fld->field_fixed == 1){ |
1247 | if(fld == evT->root_field) return fld->field_size; |
1248 | } |
1249 | |
1250 | if(type->type_class != LTT_STRUCT && type->type_class != LTT_ARRAY && |
1251 | type->type_class != LTT_SEQUENCE && type->type_class != LTT_STRING){ |
1252 | if(fld->field_fixed == -1){ |
40331ba8 |
1253 | size = (int) ltt_type_size(trace, type); |
6cd62ccf |
1254 | fld->field_fixed = 1; |
1255 | }else size = fld->field_size; |
1256 | |
1257 | }else if(type->type_class == LTT_ARRAY){ |
1258 | element_number = (int) type->element_number; |
1259 | if(fld->field_fixed == -1){ |
40331ba8 |
1260 | size = getFieldtypeSize(t, evT, offsetRoot,0,fld->child[0], NULL, trace); |
6cd62ccf |
1261 | if(size == 0){ //has string or sequence |
1262 | fld->field_fixed = 0; |
1263 | }else{ |
1264 | fld->field_fixed = 1; |
1265 | size *= element_number; |
1266 | } |
1267 | }else if(fld->field_fixed == 0){// has string or sequence |
1268 | size = 0; |
1269 | for(i=0;i<element_number;i++){ |
1270 | size += getFieldtypeSize(t, evT, offsetRoot+size,size, |
40331ba8 |
1271 | fld->child[0], evD+size, trace); |
6cd62ccf |
1272 | } |
1273 | }else size = fld->field_size; |
1274 | |
1275 | }else if(type->type_class == LTT_SEQUENCE){ |
40331ba8 |
1276 | size1 = (int) ltt_type_size(trace, type); |
6cd62ccf |
1277 | if(fld->field_fixed == -1){ |
908f42fa |
1278 | fld->sequ_number_size = size1; |
6cd62ccf |
1279 | fld->field_fixed = 0; |
40331ba8 |
1280 | size = getFieldtypeSize(t, evT, offsetRoot,0,fld->child[0], NULL, trace); |
6cd62ccf |
1281 | fld->element_size = size; |
1282 | }else{//0: sequence |
1283 | element_number = getIntNumber(size1,evD); |
1284 | type->element_number = element_number; |
1285 | if(fld->element_size > 0){ |
1286 | size = element_number * fld->element_size; |
1287 | }else{//sequence has string or sequence |
1288 | size = 0; |
1289 | for(i=0;i<element_number;i++){ |
1290 | size += getFieldtypeSize(t, evT, offsetRoot+size+size1,size+size1, |
40331ba8 |
1291 | fld->child[0], evD+size+size1, trace); |
6cd62ccf |
1292 | } |
1293 | } |
1294 | size += size1; |
1295 | } |
1296 | |
1297 | }else if(type->type_class == LTT_STRING){ |
1298 | size = 0; |
1299 | if(fld->field_fixed == -1){ |
1300 | fld->field_fixed = 0; |
1301 | }else{//0: string |
47a166fc |
1302 | size = strlen((char*)evD) + 1; //include end : '\0' |
6cd62ccf |
1303 | } |
1304 | |
1305 | }else if(type->type_class == LTT_STRUCT){ |
1306 | element_number = (int) type->element_number; |
1307 | size = 0; |
1308 | if(fld->field_fixed == -1){ |
1309 | offset1 = offsetRoot; |
1310 | offset2 = 0; |
1311 | for(i=0;i<element_number;i++){ |
40331ba8 |
1312 | size1=getFieldtypeSize(t, evT,offset1,offset2, fld->child[i], NULL, trace); |
6cd62ccf |
1313 | if(size1 > 0 && size >= 0){ |
1314 | size += size1; |
1315 | if(offset1 >= 0) offset1 += size1; |
1316 | offset2 += size1; |
1317 | }else{ |
1318 | size = -1; |
1319 | offset1 = -1; |
1320 | offset2 = -1; |
1321 | } |
1322 | } |
1323 | if(size == -1){ |
1324 | fld->field_fixed = 0; |
1325 | size = 0; |
1326 | }else fld->field_fixed = 1; |
1327 | }else if(fld->field_fixed == 0){ |
1328 | offset1 = offsetRoot; |
1329 | offset2 = 0; |
1330 | for(i=0;i<element_number;i++){ |
40331ba8 |
1331 | size=getFieldtypeSize(t,evT,offset1,offset2,fld->child[i],evD+offset2, trace); |
6cd62ccf |
1332 | offset1 += size; |
1333 | offset2 += size; |
1334 | } |
1335 | size = offset2; |
1336 | }else size = fld->field_size; |
1337 | } |
1338 | |
1339 | fld->offset_root = offsetRoot; |
1340 | fld->offset_parent = offsetParent; |
1341 | if(!evD){ |
1342 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
1343 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
1344 | } |
1345 | fld->field_size = size; |
1346 | |
1347 | return size; |
1348 | } |
1349 | |
6cd62ccf |
1350 | |
1351 | /***************************************************************************** |
1352 | *Function name |
1353 | * getIntNumber : get an integer number |
1354 | *Input params |
1355 | * size : the size of the integer |
1356 | * evD : the event data |
1357 | *Return value |
1358 | * int : an integer |
1359 | ****************************************************************************/ |
1360 | |
1361 | int getIntNumber(int size, void *evD) |
1362 | { |
cbd41522 |
1363 | gint64 i; |
1364 | if(size == 1) i = *(gint8 *)evD; |
1365 | else if(size == 2) i = *(gint16 *)evD; |
1366 | else if(size == 4) i = *(gint32 *)evD; |
1367 | else if(size == 8) i = *(gint64 *)evD; |
6cd62ccf |
1368 | |
1369 | return (int) i; |
1370 | } |
1371 | |
1372 | /***************************************************************************** |
1373 | *Function name |
1374 | * getDataEndianType : get the data type size and endian type of the local |
1375 | * machine |
1376 | *Input params |
1377 | * size : size of data type |
1378 | * endian : endian type, little or big |
1379 | ****************************************************************************/ |
1380 | |
963b5f2d |
1381 | void getDataEndianType(LttArchSize * size, LttArchEndian * endian) |
6cd62ccf |
1382 | { |
1383 | int i = 1; |
1384 | char c = (char) i; |
1385 | int sizeInt=sizeof(int), sizeLong=sizeof(long), sizePointer=sizeof(void *); |
1386 | |
1387 | if(c == 1) *endian = LTT_LITTLE_ENDIAN; |
1388 | else *endian = LTT_BIG_ENDIAN; |
1389 | |
1390 | if(sizeInt == 2 && sizeLong == 4 && sizePointer == 4) |
1391 | *size = LTT_LP32; |
1392 | else if(sizeInt == 4 && sizeLong == 4 && sizePointer == 4) |
1393 | *size = LTT_ILP32; |
1394 | else if(sizeInt == 4 && sizeLong == 8 && sizePointer == 8) |
1395 | *size = LTT_LP64; |
1396 | else if(sizeInt == 8 && sizeLong == 8 && sizePointer == 8) |
1397 | *size = LTT_ILP64; |
1398 | else *size = LTT_UNKNOWN; |
1399 | } |
1400 | |
a5dcde2f |
1401 | /* get the node name of the system */ |
1402 | |
1403 | char * ltt_trace_system_description_node_name (LttSystemDescription * s) |
1404 | { |
1405 | return s->node_name; |
1406 | } |
1407 | |
1408 | |
1409 | /* get the domain name of the system */ |
1410 | |
1411 | char * ltt_trace_system_description_domain_name (LttSystemDescription * s) |
1412 | { |
1413 | return s->domain_name; |
1414 | } |
1415 | |
1416 | |
1417 | /* get the description of the system */ |
1418 | |
1419 | char * ltt_trace_system_description_description (LttSystemDescription * s) |
1420 | { |
1421 | return s->description; |
1422 | } |
1423 | |
1424 | |
1425 | /* get the start time of the trace */ |
1426 | |
1427 | LttTime ltt_trace_system_description_trace_start_time(LttSystemDescription *s) |
1428 | { |
1429 | return s->trace_start; |
1430 | } |
1431 | |