449cb9d7 |
1 | /* This file is part of the Linux Trace Toolkit viewer |
57df94dd |
2 | * Copyright (C) 2003-2004 Xiangxiu Yang, Mathieu Desnoyers |
449cb9d7 |
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> |
8d1e6362 |
21 | #include <string.h> |
22 | #include <dirent.h> |
6cd62ccf |
23 | #include <sys/stat.h> |
24 | #include <sys/types.h> |
8d1e6362 |
25 | #include <errno.h> |
26 | #include <unistd.h> |
42db9bf1 |
27 | #include <math.h> |
6cd62ccf |
28 | |
ef35d837 |
29 | // For realpath |
30 | #include <limits.h> |
31 | #include <stdlib.h> |
32 | |
33 | |
6cd62ccf |
34 | #include "parser.h" |
a5dcde2f |
35 | #include <ltt/ltt.h> |
36 | #include "ltt-private.h" |
963b5f2d |
37 | #include <ltt/trace.h> |
a5dcde2f |
38 | #include <ltt/facility.h> |
c02ea99f |
39 | #include <ltt/event.h> |
8d1e6362 |
40 | #include <ltt/type.h> |
6cd62ccf |
41 | |
963b5f2d |
42 | #define DIR_NAME_SIZE 256 |
51b5991e |
43 | #define __UNUSED__ __attribute__((__unused__)) |
6cd62ccf |
44 | |
a1062ddd |
45 | #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format) |
46 | #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format) |
47 | |
8959a0c8 |
48 | |
49 | /* obtain the time of an event */ |
50 | |
51 | static inline LttTime getEventTime(LttTracefile * tf); |
52 | |
53 | |
6cd62ccf |
54 | /* set the offset of the fields belonging to the event, |
55 | need the information of the archecture */ |
40331ba8 |
56 | void setFieldsOffset(LttTracefile *tf,LttEventType *evT,void *evD,LttTrace *t); |
6cd62ccf |
57 | |
58 | /* get the size of the field type according to the archtecture's |
59 | size and endian type(info of the archecture) */ |
21182d4a |
60 | static inline gint getFieldtypeSize(LttTracefile * tf, |
61 | LttEventType * evT, gint offsetRoot, |
62 | gint offsetParent, LttField *fld, void *evD, LttTrace* t); |
6cd62ccf |
63 | |
64 | /* read a fixed size or a block information from the file (fd) */ |
65 | int readFile(int fd, void * buf, size_t size, char * mesg); |
963b5f2d |
66 | int readBlock(LttTracefile * tf, int whichBlock); |
6cd62ccf |
67 | |
68 | /* calculate cycles per nsec for current block */ |
963b5f2d |
69 | void getCyclePerNsec(LttTracefile * t); |
6cd62ccf |
70 | |
71 | /* reinitialize the info of the block which is already in the buffer */ |
963b5f2d |
72 | void updateTracefile(LttTracefile * tf); |
6cd62ccf |
73 | |
74 | /* go to the next event */ |
963b5f2d |
75 | int skipEvent(LttTracefile * t); |
6cd62ccf |
76 | |
6cd62ccf |
77 | |
43da6a59 |
78 | /* Functions to parse system.xml file (using glib xml parser) */ |
51b5991e |
79 | static void parser_start_element (GMarkupParseContext __UNUSED__ *context, |
43da6a59 |
80 | const gchar *element_name, |
81 | const gchar **attribute_names, |
82 | const gchar **attribute_values, |
83 | gpointer user_data, |
84 | GError **error) |
85 | { |
86 | int i=0; |
87 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
88 | if(strcmp("system", element_name)){ |
2a74fbf4 |
89 | *error = g_error_new(G_MARKUP_ERROR, |
90 | G_LOG_LEVEL_WARNING, |
91 | "This is not system.xml file"); |
92 | return; |
43da6a59 |
93 | } |
94 | |
95 | while(attribute_names[i]){ |
96 | if(strcmp("node_name", attribute_names[i])==0){ |
97 | des->node_name = g_strdup(attribute_values[i]); |
98 | }else if(strcmp("domainname", attribute_names[i])==0){ |
99 | des->domain_name = g_strdup(attribute_values[i]); |
100 | }else if(strcmp("cpu", attribute_names[i])==0){ |
101 | des->nb_cpu = atoi(attribute_values[i]); |
102 | }else if(strcmp("arch_size", attribute_names[i])==0){ |
103 | if(strcmp(attribute_values[i],"LP32") == 0) des->size = LTT_LP32; |
104 | else if(strcmp(attribute_values[i],"ILP32") == 0) des->size = LTT_ILP32; |
105 | else if(strcmp(attribute_values[i],"LP64") == 0) des->size = LTT_LP64; |
106 | else if(strcmp(attribute_values[i],"ILP64") == 0) des->size = LTT_ILP64; |
107 | else if(strcmp(attribute_values[i],"UNKNOWN") == 0) des->size = LTT_UNKNOWN; |
108 | }else if(strcmp("endian", attribute_names[i])==0){ |
109 | if(strcmp(attribute_values[i],"LITTLE_ENDIAN") == 0) |
110 | des->endian = LTT_LITTLE_ENDIAN; |
111 | else if(strcmp(attribute_values[i],"BIG_ENDIAN") == 0) |
112 | des->endian = LTT_BIG_ENDIAN; |
113 | }else if(strcmp("kernel_name", attribute_names[i])==0){ |
114 | des->kernel_name = g_strdup(attribute_values[i]); |
115 | }else if(strcmp("kernel_release", attribute_names[i])==0){ |
116 | des->kernel_release = g_strdup(attribute_values[i]); |
117 | }else if(strcmp("kernel_version", attribute_names[i])==0){ |
118 | des->kernel_version = g_strdup(attribute_values[i]); |
119 | }else if(strcmp("machine", attribute_names[i])==0){ |
120 | des->machine = g_strdup(attribute_values[i]); |
121 | }else if(strcmp("processor", attribute_names[i])==0){ |
122 | des->processor = g_strdup(attribute_values[i]); |
123 | }else if(strcmp("hardware_platform", attribute_names[i])==0){ |
124 | des->hardware_platform = g_strdup(attribute_values[i]); |
125 | }else if(strcmp("operating_system", attribute_names[i])==0){ |
126 | des->operating_system = g_strdup(attribute_values[i]); |
127 | }else if(strcmp("ltt_major_version", attribute_names[i])==0){ |
128 | des->ltt_major_version = atoi(attribute_values[i]); |
129 | }else if(strcmp("ltt_minor_version", attribute_names[i])==0){ |
130 | des->ltt_minor_version = atoi(attribute_values[i]); |
131 | }else if(strcmp("ltt_block_size", attribute_names[i])==0){ |
132 | des->ltt_block_size = atoi(attribute_values[i]); |
133 | }else{ |
2a74fbf4 |
134 | *error = g_error_new(G_MARKUP_ERROR, |
135 | G_LOG_LEVEL_WARNING, |
136 | "Not a valid attribute"); |
137 | return; |
43da6a59 |
138 | } |
139 | i++; |
140 | } |
141 | } |
142 | |
51b5991e |
143 | static void parser_characters (GMarkupParseContext __UNUSED__ *context, |
43da6a59 |
144 | const gchar *text, |
51b5991e |
145 | gsize __UNUSED__ text_len, |
43da6a59 |
146 | gpointer user_data, |
51b5991e |
147 | GError __UNUSED__ **error) |
43da6a59 |
148 | { |
149 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
150 | des->description = g_strdup(text); |
151 | } |
152 | |
153 | |
6cd62ccf |
154 | /***************************************************************************** |
155 | *Function name |
963b5f2d |
156 | * ltt_tracefile_open : open a trace file, construct a LttTracefile |
6cd62ccf |
157 | *Input params |
963b5f2d |
158 | * t : the trace containing the tracefile |
159 | * fileName : path name of the trace file |
6cd62ccf |
160 | *Return value |
963b5f2d |
161 | * : a pointer to a tracefile |
6cd62ccf |
162 | ****************************************************************************/ |
163 | |
963b5f2d |
164 | LttTracefile* ltt_tracefile_open(LttTrace * t, char * fileName) |
6cd62ccf |
165 | { |
963b5f2d |
166 | LttTracefile * tf; |
167 | struct stat lTDFStat; /* Trace data file status */ |
6cd62ccf |
168 | |
963b5f2d |
169 | tf = g_new(LttTracefile, 1); |
6cd62ccf |
170 | |
171 | //open the file |
963b5f2d |
172 | tf->name = g_strdup(fileName); |
173 | tf->trace = t; |
6cd62ccf |
174 | tf->fd = open(fileName, O_RDONLY, 0); |
175 | if(tf->fd < 0){ |
2a74fbf4 |
176 | g_warning("Unable to open input data file %s\n", fileName); |
177 | g_free(tf->name); |
178 | g_free(tf); |
179 | return NULL; |
6cd62ccf |
180 | } |
181 | |
182 | // Get the file's status |
183 | if(fstat(tf->fd, &lTDFStat) < 0){ |
2a74fbf4 |
184 | g_warning("Unable to get the status of the input data file %s\n", fileName); |
185 | g_free(tf->name); |
186 | close(tf->fd); |
187 | g_free(tf); |
188 | return NULL; |
6cd62ccf |
189 | } |
190 | |
191 | // Is the file large enough to contain a trace |
8d1e6362 |
192 | if(lTDFStat.st_size < (off_t)(sizeof(BlockStart) + EVENT_HEADER_SIZE)){ |
8710c6c7 |
193 | g_print("The input data file %s does not contain a trace\n", fileName); |
663bd9ff |
194 | g_free(tf->name); |
195 | close(tf->fd); |
196 | g_free(tf); |
8710c6c7 |
197 | return NULL; |
6cd62ccf |
198 | } |
199 | |
200 | //store the size of the file |
201 | tf->file_size = lTDFStat.st_size; |
963b5f2d |
202 | tf->block_size = t->system_description->ltt_block_size; |
203 | tf->block_number = tf->file_size / tf->block_size; |
204 | tf->which_block = 0; |
6cd62ccf |
205 | |
206 | //allocate memory to contain the info of a block |
963b5f2d |
207 | tf->buffer = (void *) g_new(char, t->system_description->ltt_block_size); |
6cd62ccf |
208 | |
963b5f2d |
209 | //read the first block |
210 | if(readBlock(tf,1)) exit(1); |
6cd62ccf |
211 | |
212 | return tf; |
213 | } |
214 | |
6cd62ccf |
215 | |
216 | /***************************************************************************** |
963b5f2d |
217 | *Open control and per cpu tracefiles |
6cd62ccf |
218 | ****************************************************************************/ |
219 | |
963b5f2d |
220 | void ltt_tracefile_open_cpu(LttTrace *t, char * tracefile_name) |
6cd62ccf |
221 | { |
963b5f2d |
222 | LttTracefile * tf; |
223 | tf = ltt_tracefile_open(t,tracefile_name); |
4a6c8e36 |
224 | if(!tf) return; |
963b5f2d |
225 | t->per_cpu_tracefile_number++; |
226 | g_ptr_array_add(t->per_cpu_tracefiles, tf); |
6cd62ccf |
227 | } |
228 | |
2a74fbf4 |
229 | gint ltt_tracefile_open_control(LttTrace *t, char * control_name) |
6cd62ccf |
230 | { |
963b5f2d |
231 | LttTracefile * tf; |
c02ea99f |
232 | LttEvent ev; |
963b5f2d |
233 | LttFacility * f; |
963b5f2d |
234 | void * pos; |
235 | FacilityLoad fLoad; |
8d1e6362 |
236 | unsigned int i; |
963b5f2d |
237 | |
238 | tf = ltt_tracefile_open(t,control_name); |
2a74fbf4 |
239 | if(!tf) { |
240 | g_warning("ltt_tracefile_open_control : bad file descriptor"); |
241 | return -1; |
242 | } |
963b5f2d |
243 | t->control_tracefile_number++; |
244 | g_ptr_array_add(t->control_tracefiles,tf); |
245 | |
246 | //parse facilities tracefile to get base_id |
542ceddd |
247 | if(strcmp(&control_name[strlen(control_name)-10],"facilities") ==0){ |
963b5f2d |
248 | while(1){ |
c02ea99f |
249 | if(!ltt_tracefile_read(tf,&ev)) return 0; // end of file |
40331ba8 |
250 | |
c02ea99f |
251 | if(ev.event_id == TRACE_FACILITY_LOAD){ |
252 | pos = ev.data; |
963b5f2d |
253 | fLoad.name = (char*)pos; |
47a166fc |
254 | fLoad.checksum = *(LttChecksum*)(pos + strlen(fLoad.name)); |
cbd41522 |
255 | fLoad.base_code = *(guint32 *)(pos + strlen(fLoad.name) + sizeof(LttChecksum)); |
963b5f2d |
256 | |
257 | for(i=0;i<t->facility_number;i++){ |
258 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
259 | if(strcmp(f->name,fLoad.name)==0 && fLoad.checksum==f->checksum){ |
260 | f->base_id = fLoad.base_code; |
261 | break; |
262 | } |
263 | } |
2a74fbf4 |
264 | if(i==t->facility_number) { |
8d1e6362 |
265 | g_warning("Facility: %s, checksum: %u is not found", |
266 | fLoad.name,(unsigned int)fLoad.checksum); |
2a74fbf4 |
267 | return -1; |
268 | } |
c02ea99f |
269 | }else if(ev.event_id == TRACE_BLOCK_START){ |
40331ba8 |
270 | continue; |
c02ea99f |
271 | }else if(ev.event_id == TRACE_BLOCK_END){ |
40331ba8 |
272 | break; |
2a74fbf4 |
273 | }else { |
8d1e6362 |
274 | g_warning("Not valid facilities trace file"); |
2a74fbf4 |
275 | return -1; |
276 | } |
963b5f2d |
277 | } |
278 | } |
2a74fbf4 |
279 | return 0; |
6cd62ccf |
280 | } |
281 | |
282 | /***************************************************************************** |
283 | *Function name |
963b5f2d |
284 | * ltt_tracefile_close: close a trace file, |
6cd62ccf |
285 | *Input params |
963b5f2d |
286 | * t : tracefile which will be closed |
6cd62ccf |
287 | ****************************************************************************/ |
288 | |
963b5f2d |
289 | void ltt_tracefile_close(LttTracefile *t) |
6cd62ccf |
290 | { |
963b5f2d |
291 | g_free(t->name); |
292 | g_free(t->buffer); |
663bd9ff |
293 | close(t->fd); |
963b5f2d |
294 | g_free(t); |
295 | } |
6cd62ccf |
296 | |
6cd62ccf |
297 | |
963b5f2d |
298 | /***************************************************************************** |
299 | *Get system information |
300 | ****************************************************************************/ |
2a74fbf4 |
301 | gint getSystemInfo(LttSystemDescription* des, char * pathname) |
963b5f2d |
302 | { |
303 | FILE * fp; |
963b5f2d |
304 | char buf[DIR_NAME_SIZE]; |
43da6a59 |
305 | |
306 | GMarkupParseContext * context; |
2a74fbf4 |
307 | GError * error = NULL; |
43da6a59 |
308 | GMarkupParser markup_parser = |
309 | { |
310 | parser_start_element, |
8d1e6362 |
311 | NULL, |
43da6a59 |
312 | parser_characters, |
313 | NULL, /* passthrough */ |
314 | NULL /* error */ |
315 | }; |
963b5f2d |
316 | |
317 | fp = fopen(pathname,"r"); |
318 | if(!fp){ |
2a74fbf4 |
319 | g_warning("Can not open file : %s\n", pathname); |
320 | return -1; |
6cd62ccf |
321 | } |
963b5f2d |
322 | |
43da6a59 |
323 | context = g_markup_parse_context_new(&markup_parser, 0, des,NULL); |
6cd62ccf |
324 | |
43da6a59 |
325 | while(fgets(buf,DIR_NAME_SIZE, fp) != NULL){ |
326 | if(!g_markup_parse_context_parse(context, buf, DIR_NAME_SIZE, &error)){ |
2a74fbf4 |
327 | if(error != NULL) { |
328 | g_warning("Can not parse xml file: \n%s\n", error->message); |
329 | g_error_free(error); |
330 | } |
331 | g_markup_parse_context_free(context); |
332 | fclose(fp); |
333 | return -1; |
43da6a59 |
334 | } |
963b5f2d |
335 | } |
2a74fbf4 |
336 | g_markup_parse_context_free(context); |
963b5f2d |
337 | fclose(fp); |
2a74fbf4 |
338 | return 0; |
6cd62ccf |
339 | } |
340 | |
341 | /***************************************************************************** |
963b5f2d |
342 | *The following functions get facility/tracefile information |
6cd62ccf |
343 | ****************************************************************************/ |
344 | |
2a74fbf4 |
345 | gint getFacilityInfo(LttTrace *t, char* eventdefs) |
6cd62ccf |
346 | { |
963b5f2d |
347 | DIR * dir; |
348 | struct dirent *entry; |
349 | char * ptr; |
8d1e6362 |
350 | unsigned int i,j; |
963b5f2d |
351 | LttFacility * f; |
352 | LttEventType * et; |
e8bb1a73 |
353 | char name[DIR_NAME_SIZE]; |
963b5f2d |
354 | |
355 | dir = opendir(eventdefs); |
2a74fbf4 |
356 | if(!dir) { |
357 | g_warning("Can not open directory: %s\n", eventdefs); |
358 | return -1; |
359 | } |
963b5f2d |
360 | |
361 | while((entry = readdir(dir)) != NULL){ |
362 | ptr = &entry->d_name[strlen(entry->d_name)-4]; |
363 | if(strcmp(ptr,".xml") != 0) continue; |
e8bb1a73 |
364 | strcpy(name,eventdefs); |
365 | strcat(name,entry->d_name); |
366 | ltt_facility_open(t,name); |
963b5f2d |
367 | } |
368 | closedir(dir); |
369 | |
963b5f2d |
370 | for(j=0;j<t->facility_number;j++){ |
8710c6c7 |
371 | f = (LttFacility*)g_ptr_array_index(t->facilities, j); |
963b5f2d |
372 | for(i=0; i<f->event_number; i++){ |
373 | et = f->events[i]; |
40331ba8 |
374 | setFieldsOffset(NULL, et, NULL, t); |
963b5f2d |
375 | } |
376 | } |
2a74fbf4 |
377 | return 0; |
963b5f2d |
378 | } |
6cd62ccf |
379 | |
2a74fbf4 |
380 | gint getControlFileInfo(LttTrace *t, char* control) |
6cd62ccf |
381 | { |
963b5f2d |
382 | DIR * dir; |
383 | struct dirent *entry; |
e8bb1a73 |
384 | char name[DIR_NAME_SIZE]; |
963b5f2d |
385 | |
386 | dir = opendir(control); |
2a74fbf4 |
387 | if(!dir) { |
388 | g_warning("Can not open directory: %s\n", control); |
389 | return -1; |
390 | } |
963b5f2d |
391 | |
392 | while((entry = readdir(dir)) != NULL){ |
8710c6c7 |
393 | if(strcmp(entry->d_name,"facilities") != 0 && |
394 | strcmp(entry->d_name,"interrupts") != 0 && |
963b5f2d |
395 | strcmp(entry->d_name,"processes") != 0) continue; |
396 | |
e8bb1a73 |
397 | strcpy(name,control); |
398 | strcat(name,entry->d_name); |
2a74fbf4 |
399 | if(ltt_tracefile_open_control(t,name)) |
400 | return -1; |
963b5f2d |
401 | } |
402 | closedir(dir); |
2a74fbf4 |
403 | return 0; |
6cd62ccf |
404 | } |
405 | |
2a74fbf4 |
406 | gint getCpuFileInfo(LttTrace *t, char* cpu) |
6cd62ccf |
407 | { |
963b5f2d |
408 | DIR * dir; |
409 | struct dirent *entry; |
e8bb1a73 |
410 | char name[DIR_NAME_SIZE]; |
963b5f2d |
411 | |
412 | dir = opendir(cpu); |
2a74fbf4 |
413 | if(!dir) { |
414 | g_warning("Can not open directory: %s\n", cpu); |
415 | return -1; |
416 | } |
963b5f2d |
417 | |
418 | while((entry = readdir(dir)) != NULL){ |
8710c6c7 |
419 | if(strcmp(entry->d_name,".") != 0 && |
a614481a |
420 | strcmp(entry->d_name,"..") != 0 && |
421 | strcmp(entry->d_name,".svn") != 0){ |
e8bb1a73 |
422 | strcpy(name,cpu); |
423 | strcat(name,entry->d_name); |
424 | ltt_tracefile_open_cpu(t,name); |
963b5f2d |
425 | }else continue; |
426 | } |
427 | closedir(dir); |
2a74fbf4 |
428 | return 0; |
6cd62ccf |
429 | } |
430 | |
963b5f2d |
431 | /***************************************************************************** |
432 | *A trace is specified as a pathname to the directory containing all the |
433 | *associated data (control tracefiles, per cpu tracefiles, event |
434 | *descriptions...). |
435 | * |
436 | *When a trace is closed, all the associated facilities, types and fields |
437 | *are released as well. |
8d1e6362 |
438 | */ |
439 | |
440 | |
441 | /**************************************************************************** |
442 | * get_absolute_pathname |
803229fa |
443 | * |
8d1e6362 |
444 | * return the unique pathname in the system |
445 | * |
ef35d837 |
446 | * MD : Fixed this function so it uses realpath, dealing well with |
447 | * forgotten cases (.. were not used correctly before). |
803229fa |
448 | * |
963b5f2d |
449 | ****************************************************************************/ |
9f797243 |
450 | void get_absolute_pathname(const char *pathname, char * abs_pathname) |
451 | { |
9f797243 |
452 | abs_pathname[0] = '\0'; |
803229fa |
453 | |
ef35d837 |
454 | if ( realpath (pathname, abs_pathname) != NULL) |
455 | return; |
456 | else |
457 | { |
8d1e6362 |
458 | /* error, return the original path unmodified */ |
ef35d837 |
459 | strcpy(abs_pathname, pathname); |
9f797243 |
460 | return; |
461 | } |
ef35d837 |
462 | return; |
9f797243 |
463 | } |
464 | |
f7afe191 |
465 | LttTrace *ltt_trace_open(const char *pathname) |
6cd62ccf |
466 | { |
963b5f2d |
467 | LttTrace * t; |
468 | LttSystemDescription * sys_description; |
469 | char eventdefs[DIR_NAME_SIZE]; |
470 | char info[DIR_NAME_SIZE]; |
471 | char control[DIR_NAME_SIZE]; |
472 | char cpu[DIR_NAME_SIZE]; |
473 | char tmp[DIR_NAME_SIZE]; |
9f797243 |
474 | char abs_path[DIR_NAME_SIZE]; |
963b5f2d |
475 | gboolean has_slash = FALSE; |
476 | |
9f797243 |
477 | get_absolute_pathname(pathname, abs_path); |
963b5f2d |
478 | //establish the pathname to different directories |
9f797243 |
479 | if(abs_path[strlen(abs_path)-1] == '/')has_slash = TRUE; |
480 | strcpy(eventdefs,abs_path); |
963b5f2d |
481 | if(!has_slash)strcat(eventdefs,"/"); |
482 | strcat(eventdefs,"eventdefs/"); |
483 | |
9f797243 |
484 | strcpy(info,abs_path); |
963b5f2d |
485 | if(!has_slash)strcat(info,"/"); |
486 | strcat(info,"info/"); |
487 | |
9f797243 |
488 | strcpy(control,abs_path); |
963b5f2d |
489 | if(!has_slash)strcat(control,"/"); |
490 | strcat(control,"control/"); |
491 | |
9f797243 |
492 | strcpy(cpu,abs_path); |
963b5f2d |
493 | if(!has_slash)strcat(cpu,"/"); |
494 | strcat(cpu,"cpu/"); |
495 | |
496 | //new trace |
963b5f2d |
497 | sys_description = g_new(LttSystemDescription, 1); |
2a74fbf4 |
498 | t = g_new(LttTrace, 1); |
9f797243 |
499 | t->pathname = g_strdup(abs_path); |
963b5f2d |
500 | t->facility_number = 0; |
501 | t->control_tracefile_number = 0; |
502 | t->per_cpu_tracefile_number = 0; |
503 | t->system_description = sys_description; |
504 | t->control_tracefiles = g_ptr_array_new(); |
505 | t->per_cpu_tracefiles = g_ptr_array_new(); |
506 | t->facilities = g_ptr_array_new(); |
507 | getDataEndianType(&(t->my_arch_size), &(t->my_arch_endian)); |
508 | |
509 | //get system description |
510 | strcpy(tmp,info); |
511 | strcat(tmp,"system.xml"); |
2a74fbf4 |
512 | if(getSystemInfo(sys_description, tmp)) { |
513 | g_ptr_array_free(t->facilities, TRUE); |
514 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
515 | g_ptr_array_free(t->control_tracefiles, TRUE); |
516 | g_free(sys_description); |
517 | g_free(t->pathname); |
518 | g_free(t); |
519 | return NULL; |
520 | } |
521 | |
522 | |
963b5f2d |
523 | |
b333a76b |
524 | //get facilities info |
2a74fbf4 |
525 | if(getFacilityInfo(t,eventdefs)) { |
526 | g_ptr_array_free(t->facilities, TRUE); |
527 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
528 | g_ptr_array_free(t->control_tracefiles, TRUE); |
529 | g_free(sys_description); |
530 | g_free(t->pathname); |
531 | g_free(t); |
532 | return NULL; |
533 | } |
b333a76b |
534 | |
963b5f2d |
535 | //get control tracefile info |
a00149f6 |
536 | getControlFileInfo(t,control); |
537 | /* |
2a74fbf4 |
538 | if(getControlFileInfo(t,control)) { |
539 | g_ptr_array_free(t->facilities, TRUE); |
540 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
541 | g_ptr_array_free(t->control_tracefiles, TRUE); |
542 | g_free(sys_description); |
543 | g_free(t->pathname); |
544 | g_free(t); |
545 | return NULL; |
a00149f6 |
546 | }*/ // With fatal error |
963b5f2d |
547 | |
548 | //get cpu tracefile info |
2a74fbf4 |
549 | if(getCpuFileInfo(t,cpu)) { |
550 | g_ptr_array_free(t->facilities, TRUE); |
551 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
552 | g_ptr_array_free(t->control_tracefiles, TRUE); |
553 | g_free(sys_description); |
554 | g_free(t->pathname); |
555 | g_free(t); |
556 | return NULL; |
557 | } |
963b5f2d |
558 | |
963b5f2d |
559 | return t; |
6cd62ccf |
560 | } |
561 | |
49bf71b5 |
562 | char * ltt_trace_name(LttTrace *t) |
563 | { |
564 | return t->pathname; |
565 | } |
566 | |
567 | |
f7afe191 |
568 | /****************************************************************************** |
569 | * When we copy a trace, we want all the opening actions to happen again : |
570 | * the trace will be reopened and totally independant from the original. |
571 | * That's why we call ltt_trace_open. |
572 | *****************************************************************************/ |
573 | LttTrace *ltt_trace_copy(LttTrace *self) |
574 | { |
575 | return ltt_trace_open(self->pathname); |
576 | } |
577 | |
963b5f2d |
578 | void ltt_trace_close(LttTrace *t) |
6cd62ccf |
579 | { |
8d1e6362 |
580 | unsigned int i; |
963b5f2d |
581 | LttTracefile * tf; |
582 | LttFacility * f; |
583 | |
584 | g_free(t->pathname); |
585 | |
586 | //free system_description |
587 | g_free(t->system_description->description); |
588 | g_free(t->system_description->node_name); |
589 | g_free(t->system_description->domain_name); |
590 | g_free(t->system_description->kernel_name); |
591 | g_free(t->system_description->kernel_release); |
592 | g_free(t->system_description->kernel_version); |
593 | g_free(t->system_description->machine); |
594 | g_free(t->system_description->processor); |
595 | g_free(t->system_description->hardware_platform); |
596 | g_free(t->system_description->operating_system); |
597 | g_free(t->system_description); |
598 | |
599 | //free control_tracefiles |
600 | for(i=0;i<t->control_tracefile_number;i++){ |
601 | tf = (LttTracefile*)g_ptr_array_index(t->control_tracefiles,i); |
602 | ltt_tracefile_close(tf); |
603 | } |
09ad4797 |
604 | g_ptr_array_free(t->control_tracefiles, TRUE); |
963b5f2d |
605 | |
606 | //free per_cpu_tracefiles |
607 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
608 | tf = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles,i); |
609 | ltt_tracefile_close(tf); |
610 | } |
09ad4797 |
611 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
963b5f2d |
612 | |
613 | //free facilities |
614 | for(i=0;i<t->facility_number;i++){ |
615 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
616 | ltt_facility_close(f); |
617 | } |
09ad4797 |
618 | g_ptr_array_free(t->facilities, TRUE); |
963b5f2d |
619 | |
620 | g_free(t); |
09ad4797 |
621 | |
622 | g_blow_chunks(); |
6cd62ccf |
623 | } |
624 | |
963b5f2d |
625 | |
6cd62ccf |
626 | /***************************************************************************** |
963b5f2d |
627 | *Get the system description of the trace |
6cd62ccf |
628 | ****************************************************************************/ |
629 | |
963b5f2d |
630 | LttSystemDescription *ltt_trace_system_description(LttTrace *t) |
6cd62ccf |
631 | { |
963b5f2d |
632 | return t->system_description; |
6cd62ccf |
633 | } |
634 | |
635 | /***************************************************************************** |
963b5f2d |
636 | * The following functions discover the facilities of the trace |
6cd62ccf |
637 | ****************************************************************************/ |
638 | |
963b5f2d |
639 | unsigned ltt_trace_facility_number(LttTrace *t) |
640 | { |
641 | return (unsigned)(t->facility_number); |
642 | } |
643 | |
644 | LttFacility *ltt_trace_facility_get(LttTrace *t, unsigned i) |
6cd62ccf |
645 | { |
963b5f2d |
646 | return (LttFacility*)g_ptr_array_index(t->facilities, i); |
6cd62ccf |
647 | } |
648 | |
649 | /***************************************************************************** |
650 | *Function name |
963b5f2d |
651 | * ltt_trace_facility_find : find facilities in the trace |
6cd62ccf |
652 | *Input params |
963b5f2d |
653 | * t : the trace |
654 | * name : facility name |
655 | *Output params |
656 | * position : position of the facility in the trace |
6cd62ccf |
657 | *Return value |
963b5f2d |
658 | * : the number of facilities |
6cd62ccf |
659 | ****************************************************************************/ |
660 | |
963b5f2d |
661 | unsigned ltt_trace_facility_find(LttTrace *t, char *name, unsigned *position) |
6cd62ccf |
662 | { |
8d1e6362 |
663 | unsigned int i, count=0; |
963b5f2d |
664 | LttFacility * f; |
8a3005f3 |
665 | for(i=0;i<t->facility_number;i++){ |
963b5f2d |
666 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
667 | if(strcmp(f->name,name)==0){ |
668 | count++; |
669 | if(count==1) *position = i; |
670 | }else{ |
671 | if(count) break; |
672 | } |
673 | } |
674 | return count; |
6cd62ccf |
675 | } |
676 | |
677 | /***************************************************************************** |
963b5f2d |
678 | * Functions to discover all the event types in the trace |
6cd62ccf |
679 | ****************************************************************************/ |
680 | |
963b5f2d |
681 | unsigned ltt_trace_eventtype_number(LttTrace *t) |
6cd62ccf |
682 | { |
8d1e6362 |
683 | unsigned int i; |
963b5f2d |
684 | unsigned count = 0; |
dc1cad90 |
685 | unsigned int num = t->facility_number; |
963b5f2d |
686 | LttFacility * f; |
dc1cad90 |
687 | |
688 | for(i=0;i<num;i++){ |
963b5f2d |
689 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
690 | count += f->event_number; |
691 | } |
692 | return count; |
6cd62ccf |
693 | } |
694 | |
155a7b0a |
695 | /* FIXME : performances could be improved with a better design for this |
6e8c19d4 |
696 | * function : sequential search through a container has never been the |
697 | * best on the critical path. */ |
963b5f2d |
698 | LttFacility * ltt_trace_facility_by_id(LttTrace * trace, unsigned id) |
6cd62ccf |
699 | { |
cf74a6f1 |
700 | LttFacility * facility = NULL; |
8d1e6362 |
701 | unsigned int i; |
dc1cad90 |
702 | unsigned int num = trace->facility_number; |
703 | GPtrArray *facilities = trace->facilities; |
cf74a6f1 |
704 | |
dc1cad90 |
705 | for(i=0;unlikely(i<num);){ |
cf74a6f1 |
706 | LttFacility *iter_facility = |
dc1cad90 |
707 | (LttFacility*) g_ptr_array_index(facilities,i); |
708 | unsigned base_id = iter_facility->base_id; |
709 | |
710 | if(likely(id >= base_id && |
711 | id < base_id + iter_facility->event_number)) { |
cf74a6f1 |
712 | facility = iter_facility; |
963b5f2d |
713 | break; |
dc1cad90 |
714 | } else { |
715 | i++; |
cf74a6f1 |
716 | } |
963b5f2d |
717 | } |
dc1cad90 |
718 | |
cf74a6f1 |
719 | return facility; |
6cd62ccf |
720 | } |
721 | |
963b5f2d |
722 | LttEventType *ltt_trace_eventtype_get(LttTrace *t, unsigned evId) |
6cd62ccf |
723 | { |
6e8c19d4 |
724 | LttEventType *event_type; |
725 | |
963b5f2d |
726 | LttFacility * f; |
727 | f = ltt_trace_facility_by_id(t,evId); |
6e8c19d4 |
728 | |
729 | if(unlikely(!f)) event_type = NULL; |
730 | else event_type = f->events[evId - f->base_id]; |
731 | |
732 | return event_type; |
6cd62ccf |
733 | } |
734 | |
735 | /***************************************************************************** |
963b5f2d |
736 | *There is one "per cpu" tracefile for each CPU, numbered from 0 to |
737 | *the maximum number of CPU in the system. When the number of CPU installed |
738 | *is less than the maximum, some positions are unused. There are also a |
739 | *number of "control" tracefiles (facilities, interrupts...). |
6cd62ccf |
740 | ****************************************************************************/ |
963b5f2d |
741 | unsigned ltt_trace_control_tracefile_number(LttTrace *t) |
6cd62ccf |
742 | { |
963b5f2d |
743 | return t->control_tracefile_number; |
6cd62ccf |
744 | } |
745 | |
963b5f2d |
746 | unsigned ltt_trace_per_cpu_tracefile_number(LttTrace *t) |
6cd62ccf |
747 | { |
963b5f2d |
748 | return t->per_cpu_tracefile_number; |
6cd62ccf |
749 | } |
750 | |
751 | /***************************************************************************** |
963b5f2d |
752 | *It is possible to search for the tracefiles by name or by CPU position. |
753 | *The index within the tracefiles of the same type is returned if found |
754 | *and a negative value otherwise. |
6cd62ccf |
755 | ****************************************************************************/ |
756 | |
8d1e6362 |
757 | int ltt_trace_control_tracefile_find(LttTrace *t, const gchar *name) |
6cd62ccf |
758 | { |
963b5f2d |
759 | LttTracefile * tracefile; |
8d1e6362 |
760 | unsigned int i; |
963b5f2d |
761 | for(i=0;i<t->control_tracefile_number;i++){ |
762 | tracefile = (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i); |
763 | if(strcmp(tracefile->name, name)==0)break; |
764 | } |
765 | if(i == t->control_tracefile_number) return -1; |
766 | return i; |
6cd62ccf |
767 | } |
768 | |
8d1e6362 |
769 | /* not really useful. We just have to know that cpu tracefiles |
770 | * comes before control tracefiles. |
771 | */ |
772 | int ltt_trace_per_cpu_tracefile_find(LttTrace *t, const gchar *name) |
6cd62ccf |
773 | { |
963b5f2d |
774 | LttTracefile * tracefile; |
8d1e6362 |
775 | unsigned int i; |
776 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
777 | tracefile = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, i); |
778 | if(strcmp(tracefile->name, name)==0)break; |
963b5f2d |
779 | } |
8d1e6362 |
780 | if(i == t->per_cpu_tracefile_number) return -1; |
781 | return i; |
6cd62ccf |
782 | } |
783 | |
784 | /***************************************************************************** |
963b5f2d |
785 | *Get a specific tracefile |
6cd62ccf |
786 | ****************************************************************************/ |
787 | |
963b5f2d |
788 | LttTracefile *ltt_trace_control_tracefile_get(LttTrace *t, unsigned i) |
6cd62ccf |
789 | { |
5598cfe3 |
790 | return (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i); |
963b5f2d |
791 | } |
792 | |
793 | LttTracefile *ltt_trace_per_cpu_tracefile_get(LttTrace *t, unsigned i) |
794 | { |
795 | return (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, i); |
6cd62ccf |
796 | } |
797 | |
487ad181 |
798 | /***************************************************************************** |
799 | * Get the start time and end time of the trace |
800 | ****************************************************************************/ |
801 | |
802 | void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end) |
803 | { |
804 | LttTime startSmall, startTmp, endBig, endTmp; |
8d1e6362 |
805 | unsigned int i, j=0; |
487ad181 |
806 | LttTracefile * tf; |
807 | |
808 | for(i=0;i<t->control_tracefile_number;i++){ |
809 | tf = g_ptr_array_index(t->control_tracefiles, i); |
810 | readBlock(tf,1); |
811 | startTmp = tf->a_block_start->time; |
812 | readBlock(tf,tf->block_number); |
813 | endTmp = tf->a_block_end->time; |
814 | if(i==0){ |
815 | startSmall = startTmp; |
816 | endBig = endTmp; |
817 | j = 1; |
818 | continue; |
819 | } |
308711e5 |
820 | if(ltt_time_compare(startSmall,startTmp) > 0) startSmall = startTmp; |
821 | if(ltt_time_compare(endBig,endTmp) < 0) endBig = endTmp; |
487ad181 |
822 | } |
823 | |
824 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
825 | tf = g_ptr_array_index(t->per_cpu_tracefiles, i); |
826 | readBlock(tf,1); |
827 | startTmp = tf->a_block_start->time; |
828 | readBlock(tf,tf->block_number); |
829 | endTmp = tf->a_block_end->time; |
830 | if(j == 0 && i==0){ |
831 | startSmall = startTmp; |
832 | endBig = endTmp; |
833 | continue; |
834 | } |
308711e5 |
835 | if(ltt_time_compare(startSmall,startTmp) > 0) startSmall = startTmp; |
836 | if(ltt_time_compare(endBig,endTmp) < 0) endBig = endTmp; |
487ad181 |
837 | } |
838 | |
c02ea99f |
839 | if(start != NULL) *start = startSmall; |
840 | if(end != NULL) *end = endBig; |
487ad181 |
841 | } |
842 | |
843 | |
6cd62ccf |
844 | /***************************************************************************** |
963b5f2d |
845 | *Get the name of a tracefile |
6cd62ccf |
846 | ****************************************************************************/ |
847 | |
963b5f2d |
848 | char *ltt_tracefile_name(LttTracefile *tf) |
6cd62ccf |
849 | { |
963b5f2d |
850 | return tf->name; |
6cd62ccf |
851 | } |
852 | |
80da81ad |
853 | /***************************************************************************** |
854 | * Get the number of blocks in the tracefile |
855 | ****************************************************************************/ |
856 | |
857 | unsigned ltt_tracefile_block_number(LttTracefile *tf) |
858 | { |
859 | return tf->block_number; |
860 | } |
861 | |
6cd62ccf |
862 | /***************************************************************************** |
863 | *Function name |
864 | * ltt_tracefile_seek_time: seek to the first event of the trace with time |
865 | * larger or equal to time |
866 | *Input params |
867 | * t : tracefile |
868 | * time : criteria of the time |
6cd62ccf |
869 | ****************************************************************************/ |
caf7a67a |
870 | void ltt_tracefile_find_time_block(LttTracefile *t, LttTime time, |
871 | int start_block, int end_block) |
872 | { |
873 | int err, tmp_block, s, e; |
874 | int headTime; |
875 | int tailTime; |
876 | |
877 | err=readBlock(t,start_block); |
878 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
879 | if(start_block == end_block)return; |
880 | |
881 | tailTime = ltt_time_compare(t->a_block_end->time, time); |
882 | if(tailTime >= 0) return; |
883 | |
884 | err=readBlock(t,end_block); |
885 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
886 | if(start_block+1 == end_block)return; |
887 | |
888 | headTime = ltt_time_compare(t->a_block_start->time, time); |
889 | if(headTime <= 0 ) return; |
890 | |
891 | tmp_block = (end_block + start_block)/2; |
892 | err=readBlock(t,tmp_block); |
893 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
894 | |
895 | headTime = ltt_time_compare(t->a_block_start->time, time); |
896 | tailTime = ltt_time_compare(t->a_block_end->time, time); |
897 | if(headTime <= 0 && tailTime >= 0) return; |
898 | |
899 | if(headTime > 0){ |
900 | s = start_block + 1; |
901 | e = tmp_block - 1; |
902 | if(s <= e) |
903 | ltt_tracefile_find_time_block(t, time, s, e); |
904 | else return; |
905 | } |
906 | |
907 | if(tailTime < 0){ |
908 | s = tmp_block + 1; |
909 | e = end_block - 1; |
910 | if(s <= e) |
911 | ltt_tracefile_find_time_block(t, time, s, e); |
912 | else return; |
913 | } |
914 | } |
915 | |
916 | void ltt_tracefile_backward_find_time_block(LttTracefile *t, LttTime time) |
917 | { |
918 | int t_time, h_time, err; |
919 | err=readBlock(t,t->which_block-1); |
920 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
921 | h_time = ltt_time_compare(t->a_block_start->time, time); |
922 | t_time = ltt_time_compare(t->a_block_end->time, time); |
923 | if(h_time == 0){ |
924 | int tmp; |
925 | if(t->which_block == 1) return; |
926 | err=readBlock(t,t->which_block-1); |
927 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
928 | tmp = ltt_time_compare(t->a_block_end->time, time); |
929 | if(tmp == 0) return ltt_tracefile_seek_time(t, time); |
930 | err=readBlock(t,t->which_block+1); |
931 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
932 | }else if(h_time > 0){ |
933 | ltt_tracefile_find_time_block(t, time, 1, t->which_block); |
934 | return ltt_tracefile_seek_time(t, time) ; |
935 | }else{ |
936 | if(t_time >= 0) return ltt_tracefile_seek_time(t, time); |
937 | err=readBlock(t,t->which_block+1); |
938 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
939 | } |
940 | } |
6cd62ccf |
941 | |
963b5f2d |
942 | void ltt_tracefile_seek_time(LttTracefile *t, LttTime time) |
6cd62ccf |
943 | { |
944 | int err; |
963b5f2d |
945 | LttTime lttTime; |
308711e5 |
946 | int headTime = ltt_time_compare(t->a_block_start->time, time); |
947 | int tailTime = ltt_time_compare(t->a_block_end->time, time); |
c02ea99f |
948 | LttEvent ev; |
62e55dd6 |
949 | |
6cd62ccf |
950 | if(headTime < 0 && tailTime > 0){ |
308711e5 |
951 | if(ltt_time_compare(t->a_block_end->time, t->current_event_time) !=0) { |
db55eaae |
952 | lttTime = getEventTime(t); |
308711e5 |
953 | err = ltt_time_compare(lttTime, time); |
db55eaae |
954 | if(err > 0){ |
8d1e6362 |
955 | if(t->which_event==2 || ltt_time_compare(t->prev_event_time,time)<0){ |
1a3b8cbd |
956 | return; |
db55eaae |
957 | }else{ |
958 | updateTracefile(t); |
959 | return ltt_tracefile_seek_time(t, time); |
1a3b8cbd |
960 | } |
db55eaae |
961 | }else if(err < 0){ |
962 | while(1){ |
c02ea99f |
963 | if(ltt_tracefile_read(t,&ev) == NULL) { |
db55eaae |
964 | g_print("End of file\n"); |
965 | return; |
966 | } |
967 | lttTime = getEventTime(t); |
308711e5 |
968 | err = ltt_time_compare(lttTime, time); |
db55eaae |
969 | if(err >= 0)return; |
970 | } |
971 | }else return; |
972 | }else{//we are at the end of the block |
973 | updateTracefile(t); |
974 | return ltt_tracefile_seek_time(t, time); |
975 | } |
e37c1372 |
976 | }else if(headTime >= 0){ |
6cd62ccf |
977 | if(t->which_block == 1){ |
978 | updateTracefile(t); |
979 | }else{ |
1ee6a9af |
980 | if(ltt_time_compare(t->prev_block_end_time, time) >= 0 || |
981 | (t->prev_block_end_time.tv_sec == 0 && |
982 | t->prev_block_end_time.tv_nsec == 0 )){ |
caf7a67a |
983 | ltt_tracefile_backward_find_time_block(t, time); |
6cd62ccf |
984 | }else{ |
985 | updateTracefile(t); |
986 | } |
987 | } |
40331ba8 |
988 | }else if(tailTime < 0){ |
6cd62ccf |
989 | if(t->which_block != t->block_number){ |
caf7a67a |
990 | ltt_tracefile_find_time_block(t, time, t->which_block+1, t->block_number); |
991 | return ltt_tracefile_seek_time(t, time); |
963b5f2d |
992 | }else { |
a8c0f09d |
993 | t->cur_event_pos = t->buffer + t->block_size; |
994 | g_print("End of file\n"); |
963b5f2d |
995 | return; |
996 | } |
40331ba8 |
997 | }else if(tailTime == 0){ |
e37c1372 |
998 | t->cur_event_pos = t->last_event_pos; |
62e55dd6 |
999 | t->current_event_time = time; |
1000 | t->cur_heart_beat_number = 0; |
1001 | t->prev_event_time.tv_sec = 0; |
1002 | t->prev_event_time.tv_nsec = 0; |
40331ba8 |
1003 | return; |
6cd62ccf |
1004 | } |
6cd62ccf |
1005 | } |
1006 | |
80da81ad |
1007 | /***************************************************************************** |
1008 | * Seek to the first event with position equal or larger to ep |
18206708 |
1009 | * |
1010 | * Modified by Mathieu Desnoyers to used faster offset position instead of |
1011 | * re-reading the whole buffer. |
80da81ad |
1012 | ****************************************************************************/ |
1013 | |
04b44e05 |
1014 | void ltt_tracefile_seek_position(LttTracefile *t, const LttEventPosition *ep) |
80da81ad |
1015 | { |
1016 | //if we are at the right place, just return |
155a7b0a |
1017 | if(likely(t->which_block == ep->block_num && t->which_event == ep->event_num)) |
80da81ad |
1018 | return; |
1019 | |
155a7b0a |
1020 | if(likely(t->which_block == ep->block_num)) updateTracefile(t); |
80da81ad |
1021 | else readBlock(t,ep->block_num); |
18206708 |
1022 | //event offset is available |
155a7b0a |
1023 | if(likely(ep->old_position)){ |
18206708 |
1024 | int err; |
1025 | |
1026 | t->which_event = ep->event_num; |
80da81ad |
1027 | t->cur_event_pos = t->buffer + ep->event_offset; |
18206708 |
1028 | t->prev_event_time = ep->event_time; |
1029 | t->current_event_time = ep->event_time; |
1030 | t->cur_heart_beat_number = ep->heart_beat_number; |
1031 | t->cur_cycle_count = ep->event_cycle_count; |
1032 | |
1033 | /* This is a workaround for fast position seek */ |
1034 | t->last_event_pos = ep->last_event_pos; |
1035 | t->prev_block_end_time = ep->prev_block_end_time; |
1036 | t->prev_event_time = ep->prev_event_time; |
1037 | t->pre_cycle_count = ep->pre_cycle_count; |
1038 | t->count = ep->count; |
2dee981d |
1039 | t->overflow_nsec = ep->overflow_nsec; |
dfb73233 |
1040 | t->last_heartbeat = ep->last_heartbeat; |
18206708 |
1041 | /* end of workaround */ |
1042 | |
1043 | //update the fields of the current event and go to the next event |
1044 | err = skipEvent(t); |
155a7b0a |
1045 | if(unlikely(err == ERANGE)) g_error("event id is out of range\n"); |
18206708 |
1046 | |
80da81ad |
1047 | return; |
1048 | } |
1049 | |
18206708 |
1050 | //only block number and event index are available |
1051 | //MD: warning : this is slow! |
1052 | g_warning("using slow O(n) tracefile seek position"); |
1053 | |
c02ea99f |
1054 | LttEvent event; |
155a7b0a |
1055 | while(likely(t->which_event < ep->event_num)) ltt_tracefile_read(t, &event); |
80da81ad |
1056 | |
1057 | return; |
1058 | } |
1059 | |
6cd62ccf |
1060 | /***************************************************************************** |
1061 | *Function name |
40331ba8 |
1062 | * ltt_tracefile_read : read the current event, set the pointer to the next |
6cd62ccf |
1063 | *Input params |
1064 | * t : tracefile |
1065 | *Return value |
963b5f2d |
1066 | * LttEvent * : an event to be processed |
6cd62ccf |
1067 | ****************************************************************************/ |
1068 | |
c02ea99f |
1069 | LttEvent *ltt_tracefile_read(LttTracefile *t, LttEvent *event) |
6cd62ccf |
1070 | { |
963b5f2d |
1071 | int err; |
6cd62ccf |
1072 | |
155a7b0a |
1073 | if(unlikely(t->cur_event_pos == t->buffer + t->block_size)){ |
1074 | if(unlikely(t->which_block == t->block_number)){ |
bdc36259 |
1075 | return NULL; |
1076 | } |
1077 | err = readBlock(t, t->which_block + 1); |
155a7b0a |
1078 | if(unlikely(err))g_error("Can not read tracefile"); |
bdc36259 |
1079 | } |
1080 | |
c02ea99f |
1081 | event->event_id = (int)(*(guint16 *)(t->cur_event_pos)); |
155a7b0a |
1082 | if(unlikely(event->event_id == TRACE_TIME_HEARTBEAT)) |
963b5f2d |
1083 | t->cur_heart_beat_number++; |
6cd62ccf |
1084 | |
40331ba8 |
1085 | t->prev_event_time = t->current_event_time; |
62e55dd6 |
1086 | // t->current_event_time = getEventTime(t); |
6cd62ccf |
1087 | |
c02ea99f |
1088 | event->time_delta = *(guint32 *)(t->cur_event_pos + EVENT_ID_SIZE); |
1089 | event->event_time = t->current_event_time; |
1090 | event->event_cycle_count = t->cur_cycle_count; |
963b5f2d |
1091 | |
c02ea99f |
1092 | event->tracefile = t; |
1093 | event->data = t->cur_event_pos + EVENT_HEADER_SIZE; |
1094 | event->which_block = t->which_block; |
1095 | event->which_event = t->which_event; |
6cd62ccf |
1096 | |
18206708 |
1097 | /* This is a workaround for fast position seek */ |
c02ea99f |
1098 | event->last_event_pos = t->last_event_pos; |
1099 | event->prev_block_end_time = t->prev_block_end_time; |
1100 | event->prev_event_time = t->prev_event_time; |
1101 | event->pre_cycle_count = t->pre_cycle_count; |
1102 | event->count = t->count; |
2dee981d |
1103 | event->overflow_nsec = t->overflow_nsec; |
dfb73233 |
1104 | event->last_heartbeat = t->last_heartbeat; |
2dee981d |
1105 | |
18206708 |
1106 | /* end of workaround */ |
1107 | |
1108 | |
1109 | |
40331ba8 |
1110 | //update the fields of the current event and go to the next event |
1111 | err = skipEvent(t); |
155a7b0a |
1112 | if(unlikely(err == ERANGE)) g_error("event id is out of range\n"); |
40331ba8 |
1113 | |
c02ea99f |
1114 | return event; |
6cd62ccf |
1115 | } |
1116 | |
1117 | /**************************************************************************** |
1118 | *Function name |
1119 | * readFile : wrap function to read from a file |
1120 | *Input Params |
1121 | * fd : file descriptor |
1122 | * buf : buf to contain the content |
1123 | * size : number of bytes to be read |
1124 | * mesg : message to be printed if some thing goes wrong |
1125 | *return value |
1126 | * 0 : success |
1127 | * EIO : can not read from the file |
1128 | ****************************************************************************/ |
1129 | |
1130 | int readFile(int fd, void * buf, size_t size, char * mesg) |
1131 | { |
8d1e6362 |
1132 | ssize_t nbBytes = read(fd, buf, size); |
1133 | |
1134 | if((size_t)nbBytes != size) { |
1135 | if(nbBytes < 0) { |
1136 | perror("Error in readFile : "); |
1137 | } else { |
1138 | g_warning("%s",mesg); |
1139 | } |
6cd62ccf |
1140 | return EIO; |
1141 | } |
1142 | return 0; |
1143 | } |
1144 | |
507915ee |
1145 | |
6cd62ccf |
1146 | /**************************************************************************** |
1147 | *Function name |
1148 | * readBlock : read a block from the file |
1149 | *Input Params |
1150 | * lttdes : ltt trace file |
1151 | * whichBlock : the block which will be read |
1152 | *return value |
1153 | * 0 : success |
1154 | * EINVAL : lseek fail |
1155 | * EIO : can not read from the file |
1156 | ****************************************************************************/ |
1157 | |
963b5f2d |
1158 | int readBlock(LttTracefile * tf, int whichBlock) |
6cd62ccf |
1159 | { |
1160 | off_t nbBytes; |
cbd41522 |
1161 | guint32 lostSize; |
6cd62ccf |
1162 | |
ac849774 |
1163 | /* same block already opened requested */ |
1164 | if((guint)whichBlock == tf->which_block) return 0; |
1165 | |
155a7b0a |
1166 | if(likely(whichBlock - tf->which_block == 1 && tf->which_block != 0)){ |
963b5f2d |
1167 | tf->prev_block_end_time = tf->a_block_end->time; |
40331ba8 |
1168 | tf->prev_event_time = tf->a_block_end->time; |
6cd62ccf |
1169 | }else{ |
1170 | tf->prev_block_end_time.tv_sec = 0; |
1171 | tf->prev_block_end_time.tv_nsec = 0; |
40331ba8 |
1172 | tf->prev_event_time.tv_sec = 0; |
1173 | tf->prev_event_time.tv_nsec = 0; |
6cd62ccf |
1174 | } |
6cd62ccf |
1175 | |
963b5f2d |
1176 | nbBytes=lseek(tf->fd,(off_t)((whichBlock-1)*tf->block_size), SEEK_SET); |
155a7b0a |
1177 | if(unlikely(nbBytes == -1)) return EINVAL; |
6cd62ccf |
1178 | |
155a7b0a |
1179 | if(unlikely(readFile(tf->fd,tf->buffer,tf->block_size,"Unable to read a block"))) |
963b5f2d |
1180 | return EIO; |
6cd62ccf |
1181 | |
963b5f2d |
1182 | tf->a_block_start=(BlockStart *) (tf->buffer + EVENT_HEADER_SIZE); |
cbd41522 |
1183 | lostSize = *(guint32 *)(tf->buffer + tf->block_size - sizeof(guint32)); |
63c35f6c |
1184 | tf->a_block_end=(BlockEnd *)(tf->buffer + tf->block_size |
1185 | - sizeof(guint32) - lostSize - sizeof(BlockEnd)); |
1186 | tf->last_event_pos = tf->buffer + tf->block_size - |
1187 | sizeof(guint32) - lostSize |
1188 | - sizeof(BlockEnd) - EVENT_HEADER_SIZE; |
6cd62ccf |
1189 | |
6cd62ccf |
1190 | tf->which_block = whichBlock; |
963b5f2d |
1191 | tf->which_event = 1; |
40331ba8 |
1192 | tf->cur_event_pos = tf->buffer;//the beginning of the block, block start ev |
6cd62ccf |
1193 | tf->cur_heart_beat_number = 0; |
dfb73233 |
1194 | tf->last_heartbeat = NULL; |
507915ee |
1195 | |
1196 | /* read the whole block to precalculate total of cycles in it */ |
1197 | tf->count = 0; |
1198 | tf->pre_cycle_count = 0; |
ac849774 |
1199 | tf->cur_cycle_count = 0; |
39ae3eed |
1200 | |
6cd62ccf |
1201 | getCyclePerNsec(tf); |
2dee981d |
1202 | |
21ff84a0 |
1203 | tf->overflow_nsec = |
42db9bf1 |
1204 | (-((double)(tf->a_block_start->cycle_count&0xFFFFFFFF)) |
21ff84a0 |
1205 | * tf->nsec_per_cycle); |
6cd62ccf |
1206 | |
62e55dd6 |
1207 | tf->current_event_time = getEventTime(tf); |
40331ba8 |
1208 | |
6cd62ccf |
1209 | return 0; |
1210 | } |
1211 | |
1212 | /***************************************************************************** |
1213 | *Function name |
1214 | * updateTracefile : reinitialize the info of the block which is already |
1215 | * in the buffer |
1216 | *Input params |
1217 | * tf : tracefile |
1218 | ****************************************************************************/ |
1219 | |
963b5f2d |
1220 | void updateTracefile(LttTracefile * tf) |
6cd62ccf |
1221 | { |
963b5f2d |
1222 | tf->which_event = 1; |
40331ba8 |
1223 | tf->cur_event_pos = tf->buffer; |
62e55dd6 |
1224 | tf->current_event_time = getEventTime(tf); |
6cd62ccf |
1225 | tf->cur_heart_beat_number = 0; |
1226 | |
1227 | tf->prev_event_time.tv_sec = 0; |
1228 | tf->prev_event_time.tv_nsec = 0; |
2dee981d |
1229 | tf->count = 0; |
1230 | |
21ff84a0 |
1231 | tf->overflow_nsec = (-((double)tf->a_block_start->cycle_count) |
1232 | * tf->nsec_per_cycle); |
2dee981d |
1233 | |
6cd62ccf |
1234 | } |
1235 | |
1236 | /***************************************************************************** |
1237 | *Function name |
1238 | * skipEvent : go to the next event, update the fields of the current event |
1239 | *Input params |
1240 | * t : tracefile |
1241 | *return value |
1242 | * 0 : success |
6cd62ccf |
1243 | * ERANGE : event id is out of range |
1244 | ****************************************************************************/ |
1245 | |
963b5f2d |
1246 | int skipEvent(LttTracefile * t) |
6cd62ccf |
1247 | { |
8d1e6362 |
1248 | int evId; |
6cd62ccf |
1249 | void * evData; |
963b5f2d |
1250 | LttEventType * evT; |
1251 | LttField * rootFld; |
6cd62ccf |
1252 | |
cbd41522 |
1253 | evId = (int)(*(guint16 *)(t->cur_event_pos)); |
6cd62ccf |
1254 | evData = t->cur_event_pos + EVENT_HEADER_SIZE; |
6cd62ccf |
1255 | |
908f42fa |
1256 | evT = ltt_trace_eventtype_get(t->trace,(unsigned)evId); |
47a166fc |
1257 | |
1d1df11d |
1258 | if(likely(evT)) rootFld = evT->root_field; |
908f42fa |
1259 | else return ERANGE; |
6cd62ccf |
1260 | |
1d1df11d |
1261 | if(likely(rootFld)){ |
908f42fa |
1262 | //event has string/sequence or the last event is not the same event |
1d1df11d |
1263 | if(likely((evT->latest_block!=t->which_block || evT->latest_event!=t->which_event) |
1264 | && rootFld->field_fixed == 0)){ |
908f42fa |
1265 | setFieldsOffset(t, evT, evData, t->trace); |
47a166fc |
1266 | } |
908f42fa |
1267 | t->cur_event_pos += EVENT_HEADER_SIZE + rootFld->field_size; |
1268 | }else t->cur_event_pos += EVENT_HEADER_SIZE; |
1269 | |
1270 | evT->latest_block = t->which_block; |
1271 | evT->latest_event = t->which_event; |
1272 | |
6cd62ccf |
1273 | //the next event is in the next block |
1d1df11d |
1274 | if(unlikely(evId == TRACE_BLOCK_END)){ |
bdc36259 |
1275 | t->cur_event_pos = t->buffer + t->block_size; |
6cd62ccf |
1276 | }else{ |
1277 | t->which_event++; |
62e55dd6 |
1278 | t->current_event_time = getEventTime(t); |
6cd62ccf |
1279 | } |
1280 | |
1281 | return 0; |
1282 | } |
1283 | |
18206708 |
1284 | |
6cd62ccf |
1285 | /***************************************************************************** |
1286 | *Function name |
1287 | * getCyclePerNsec : calculate cycles per nsec for current block |
507915ee |
1288 | * MD: should have tracefile_read the whole block, so we know the |
1289 | * total of cycles in it before being called. |
6cd62ccf |
1290 | *Input Params |
1291 | * t : tracefile |
1292 | ****************************************************************************/ |
1293 | |
963b5f2d |
1294 | void getCyclePerNsec(LttTracefile * t) |
6cd62ccf |
1295 | { |
963b5f2d |
1296 | LttTime lBufTotalTime; /* Total time for this buffer */ |
887208b7 |
1297 | double lBufTotalNSec; /* Total time for this buffer in nsecs */ |
8ee1c3d5 |
1298 | LttCycleCount lBufTotalCycle;/* Total cycles for this buffer */ |
6cd62ccf |
1299 | |
1300 | /* Calculate the total time for this buffer */ |
308711e5 |
1301 | lBufTotalTime = ltt_time_sub(t->a_block_end->time, t->a_block_start->time); |
6cd62ccf |
1302 | |
1303 | /* Calculate the total cycles for this bufffer */ |
e4eced0f |
1304 | lBufTotalCycle = t->a_block_end->cycle_count; |
1305 | lBufTotalCycle -= t->a_block_start->cycle_count; |
6cd62ccf |
1306 | |
8ee1c3d5 |
1307 | /* Convert the total time to double */ |
887208b7 |
1308 | lBufTotalNSec = ltt_time_to_double(lBufTotalTime); |
6cd62ccf |
1309 | |
887208b7 |
1310 | t->nsec_per_cycle = (double)lBufTotalNSec / (double)lBufTotalCycle; |
8ee1c3d5 |
1311 | |
2dee981d |
1312 | /* Pre-multiply one overflow (2^32 cycles) by nsec_per_cycle */ |
21ff84a0 |
1313 | t->one_overflow_nsec = t->nsec_per_cycle * (double)0x100000000ULL; |
2dee981d |
1314 | |
6cd62ccf |
1315 | } |
1316 | |
1317 | /**************************************************************************** |
1318 | *Function name |
1319 | * getEventTime : obtain the time of an event |
887208b7 |
1320 | * NOTE : this function _really_ is on critical path. |
6cd62ccf |
1321 | *Input params |
1322 | * tf : tracefile |
1323 | *Return value |
963b5f2d |
1324 | * LttTime : the time of the event |
6cd62ccf |
1325 | ****************************************************************************/ |
1326 | |
8959a0c8 |
1327 | static inline LttTime getEventTime(LttTracefile * tf) |
6cd62ccf |
1328 | { |
963b5f2d |
1329 | LttTime time; |
1330 | LttCycleCount cycle_count; // cycle count for the current event |
2dee981d |
1331 | //LttCycleCount lEventTotalCycle; // Total cycles from start for event |
1332 | gint64 lEventNSec; // Total nsecs from start for event |
963b5f2d |
1333 | LttTime lTimeOffset; // Time offset in struct LttTime |
cbd41522 |
1334 | guint16 evId; |
e4eced0f |
1335 | |
cbd41522 |
1336 | evId = *(guint16 *)tf->cur_event_pos; |
ac849774 |
1337 | |
cbd41522 |
1338 | cycle_count = (LttCycleCount)*(guint32 *)(tf->cur_event_pos + EVENT_ID_SIZE); |
e4eced0f |
1339 | |
dfb73233 |
1340 | gboolean comp_count = cycle_count < tf->pre_cycle_count; |
bbf28e50 |
1341 | |
dfb73233 |
1342 | tf->pre_cycle_count = cycle_count; |
1343 | |
1344 | if(unlikely(comp_count)) { |
bbf28e50 |
1345 | /* Overflow */ |
dfb73233 |
1346 | tf->overflow_nsec += tf->one_overflow_nsec; |
1347 | tf->count++; //increment overflow count |
1348 | } |
1349 | |
1350 | if(unlikely(evId == TRACE_BLOCK_START)) { |
1351 | lEventNSec = 0; |
1352 | } else if(unlikely(evId == TRACE_BLOCK_END)) { |
21ff84a0 |
1353 | lEventNSec = ((double) |
dfb73233 |
1354 | (tf->a_block_end->cycle_count - tf->a_block_start->cycle_count) |
21ff84a0 |
1355 | * tf->nsec_per_cycle); |
dfb73233 |
1356 | } |
dfb73233 |
1357 | #if 0 |
bbf28e50 |
1358 | /* If you want to make heart beat a special case and use their own 64 bits |
1359 | * TSC, activate this. |
1360 | */ |
dfb73233 |
1361 | else if(unlikely(evId == TRACE_TIME_HEARTBEAT)) { |
1362 | |
1363 | tf->last_heartbeat = (TimeHeartbeat*)(tf->cur_event_pos+EVENT_HEADER_SIZE); |
1364 | lEventNSec = ((double)(tf->last_heartbeat->cycle_count |
1365 | - tf->a_block_start->cycle_count) |
1366 | * tf->nsec_per_cycle); |
1367 | } |
1368 | #endif //0 |
1369 | else { |
21ff84a0 |
1370 | lEventNSec = (gint64)((double)cycle_count * tf->nsec_per_cycle) |
dfb73233 |
1371 | +tf->overflow_nsec; |
1372 | } |
1373 | |
2dee981d |
1374 | lTimeOffset = ltt_time_from_uint64(lEventNSec); |
1375 | |
308711e5 |
1376 | time = ltt_time_add(tf->a_block_start->time, lTimeOffset); |
e4eced0f |
1377 | |
6cd62ccf |
1378 | return time; |
1379 | } |
1380 | |
1381 | /***************************************************************************** |
1382 | *Function name |
1383 | * setFieldsOffset : set offset of the fields |
1384 | *Input params |
1385 | * tracefile : opened trace file |
1386 | * evT : the event type |
1387 | * evD : event data, it may be NULL |
1388 | ****************************************************************************/ |
1389 | |
40331ba8 |
1390 | void setFieldsOffset(LttTracefile *tf,LttEventType *evT,void *evD,LttTrace* t) |
6cd62ccf |
1391 | { |
963b5f2d |
1392 | LttField * rootFld = evT->root_field; |
6cd62ccf |
1393 | // rootFld->base_address = evD; |
1394 | |
1d1df11d |
1395 | if(likely(rootFld)) |
8710c6c7 |
1396 | rootFld->field_size = getFieldtypeSize(tf, evT, 0,0,rootFld, evD,t); |
6cd62ccf |
1397 | } |
1398 | |
1399 | /***************************************************************************** |
1400 | *Function name |
1401 | * getFieldtypeSize: get the size of the field type (primitive type) |
1402 | *Input params |
1403 | * tracefile : opened trace file |
1404 | * evT : event type |
1405 | * offsetRoot : offset from the root |
1406 | * offsetParent : offset from the parrent |
1407 | * fld : field |
1408 | * evD : event data, it may be NULL |
1409 | *Return value |
1410 | * int : size of the field |
1411 | ****************************************************************************/ |
1412 | |
21182d4a |
1413 | static inline gint getFieldtypeSize(LttTracefile * t, |
1414 | LttEventType * evT, gint offsetRoot, |
1415 | gint offsetParent, LttField * fld, void *evD, LttTrace *trace) |
6cd62ccf |
1416 | { |
21182d4a |
1417 | gint size, size1, element_number, i, offset1, offset2; |
963b5f2d |
1418 | LttType * type = fld->field_type; |
6cd62ccf |
1419 | |
21182d4a |
1420 | if(unlikely(t && evT->latest_block==t->which_block && |
1421 | evT->latest_event==t->which_event)){ |
1422 | size = fld->field_size; |
1423 | goto end_getFieldtypeSize; |
a0d63196 |
1424 | } else { |
1425 | /* This likely has been tested with gcov : half of them.. */ |
1426 | if(unlikely(fld->field_fixed == 1)){ |
1427 | /* tested : none */ |
1428 | if(unlikely(fld == evT->root_field)) { |
1429 | size = fld->field_size; |
1430 | goto end_getFieldtypeSize; |
1431 | } |
21182d4a |
1432 | } |
6cd62ccf |
1433 | |
a0d63196 |
1434 | /* From gcov profiling : half string, half struct, can we gain something |
1435 | * from that ? (Mathieu) */ |
1436 | switch(type->type_class) { |
1437 | case LTT_ARRAY: |
1438 | element_number = (int) type->element_number; |
1439 | if(fld->field_fixed == -1){ |
1440 | size = getFieldtypeSize(t, evT, offsetRoot, |
1441 | 0,fld->child[0], NULL, trace); |
1442 | if(size == 0){ //has string or sequence |
1443 | fld->field_fixed = 0; |
1444 | }else{ |
1445 | fld->field_fixed = 1; |
1446 | size *= element_number; |
1447 | } |
1448 | }else if(fld->field_fixed == 0){// has string or sequence |
1449 | size = 0; |
1450 | for(i=0;i<element_number;i++){ |
1451 | size += getFieldtypeSize(t, evT, offsetRoot+size,size, |
1452 | fld->child[0], evD+size, trace); |
1453 | } |
1454 | }else size = fld->field_size; |
1455 | if(unlikely(!evD)){ |
1456 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
1457 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
1458 | } |
1459 | |
1460 | break; |
1461 | |
1462 | case LTT_SEQUENCE: |
1463 | size1 = (int) ltt_type_size(trace, type); |
1464 | if(fld->field_fixed == -1){ |
1465 | fld->sequ_number_size = size1; |
cf74a6f1 |
1466 | fld->field_fixed = 0; |
a0d63196 |
1467 | size = getFieldtypeSize(t, evT, offsetRoot, |
1468 | 0,fld->child[0], NULL, trace); |
1469 | fld->element_size = size; |
1470 | }else{//0: sequence |
1471 | element_number = getIntNumber(size1,evD); |
1472 | type->element_number = element_number; |
1473 | if(fld->element_size > 0){ |
1474 | size = element_number * fld->element_size; |
1475 | }else{//sequence has string or sequence |
1476 | size = 0; |
1477 | for(i=0;i<element_number;i++){ |
1478 | size += getFieldtypeSize(t, evT, offsetRoot+size+size1,size+size1, |
1479 | fld->child[0], evD+size+size1, trace); |
1480 | } |
1481 | } |
1482 | size += size1; |
cf74a6f1 |
1483 | } |
a0d63196 |
1484 | if(unlikely(!evD)){ |
1485 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
1486 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
1487 | } |
1488 | |
1489 | break; |
1490 | |
1491 | case LTT_STRING: |
cf74a6f1 |
1492 | size = 0; |
a0d63196 |
1493 | if(fld->field_fixed == -1){ |
1494 | fld->field_fixed = 0; |
1495 | }else{//0: string |
1496 | /* Hope my implementation is faster than strlen (Mathieu) */ |
1497 | char *ptr=(char*)evD; |
1498 | size = 1; |
1499 | /* from gcov : many many strings are empty, make it the common case.*/ |
1500 | while(unlikely(*ptr != '\0')) { size++; ptr++; } |
1501 | //size = ptr - (char*)evD + 1; //include end : '\0' |
cf74a6f1 |
1502 | } |
a0d63196 |
1503 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
1504 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
cf74a6f1 |
1505 | |
a0d63196 |
1506 | break; |
1507 | |
1508 | case LTT_STRUCT: |
1509 | element_number = (int) type->element_number; |
1510 | size = 0; |
1511 | /* tested with gcov */ |
1512 | if(unlikely(fld->field_fixed == -1)){ |
1513 | offset1 = offsetRoot; |
1514 | offset2 = 0; |
cf74a6f1 |
1515 | for(i=0;i<element_number;i++){ |
a0d63196 |
1516 | size1=getFieldtypeSize(t, evT,offset1,offset2, |
1517 | fld->child[i], NULL, trace); |
1518 | if(likely(size1 > 0 && size >= 0)){ |
1519 | size += size1; |
1520 | if(likely(offset1 >= 0)) offset1 += size1; |
1521 | offset2 += size1; |
1522 | }else{ |
1523 | size = -1; |
1524 | offset1 = -1; |
1525 | offset2 = -1; |
1526 | } |
cf74a6f1 |
1527 | } |
a0d63196 |
1528 | if(unlikely(size == -1)){ |
1529 | fld->field_fixed = 0; |
1530 | size = 0; |
1531 | }else fld->field_fixed = 1; |
1532 | }else if(likely(fld->field_fixed == 0)){ |
1533 | offset1 = offsetRoot; |
1534 | offset2 = 0; |
1535 | for(i=0;unlikely(i<element_number);i++){ |
1536 | size=getFieldtypeSize(t,evT,offset1,offset2, |
1537 | fld->child[i],evD+offset2, trace); |
1538 | offset1 += size; |
1539 | offset2 += size; |
1540 | } |
1541 | size = offset2; |
1542 | }else size = fld->field_size; |
d37b2aaa |
1543 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
1544 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
a0d63196 |
1545 | break; |
cf74a6f1 |
1546 | |
a0d63196 |
1547 | default: |
1548 | if(unlikely(fld->field_fixed == -1)){ |
1549 | size = (int) ltt_type_size(trace, type); |
1550 | fld->field_fixed = 1; |
1551 | }else size = fld->field_size; |
1552 | if(unlikely(!evD)){ |
1553 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
1554 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
1555 | } |
1556 | break; |
1557 | } |
cf74a6f1 |
1558 | } |
1559 | |
6cd62ccf |
1560 | fld->offset_root = offsetRoot; |
1561 | fld->offset_parent = offsetParent; |
6cd62ccf |
1562 | fld->field_size = size; |
1563 | |
21182d4a |
1564 | end_getFieldtypeSize: |
1565 | |
6cd62ccf |
1566 | return size; |
1567 | } |
1568 | |
6cd62ccf |
1569 | |
1570 | /***************************************************************************** |
1571 | *Function name |
1572 | * getIntNumber : get an integer number |
1573 | *Input params |
1574 | * size : the size of the integer |
1575 | * evD : the event data |
1576 | *Return value |
cf74a6f1 |
1577 | * gint64 : a 64 bits integer |
6cd62ccf |
1578 | ****************************************************************************/ |
1579 | |
cf74a6f1 |
1580 | gint64 getIntNumber(int size, void *evD) |
6cd62ccf |
1581 | { |
cbd41522 |
1582 | gint64 i; |
cf74a6f1 |
1583 | |
1584 | switch(size) { |
1585 | case 1: i = *(gint8 *)evD; break; |
1586 | case 2: i = *(gint16 *)evD; break; |
1587 | case 4: i = *(gint32 *)evD; break; |
1588 | case 8: i = *(gint64 *)evD; break; |
1589 | default: i = *(gint64 *)evD; |
1590 | g_critical("getIntNumber : integer size %d unknown", size); |
1591 | break; |
1592 | } |
1593 | |
cf74a6f1 |
1594 | return (gint64)i; |
6cd62ccf |
1595 | } |
1596 | |
1597 | /***************************************************************************** |
1598 | *Function name |
1599 | * getDataEndianType : get the data type size and endian type of the local |
1600 | * machine |
1601 | *Input params |
1602 | * size : size of data type |
1603 | * endian : endian type, little or big |
1604 | ****************************************************************************/ |
1605 | |
963b5f2d |
1606 | void getDataEndianType(LttArchSize * size, LttArchEndian * endian) |
6cd62ccf |
1607 | { |
1608 | int i = 1; |
1609 | char c = (char) i; |
1610 | int sizeInt=sizeof(int), sizeLong=sizeof(long), sizePointer=sizeof(void *); |
1611 | |
1612 | if(c == 1) *endian = LTT_LITTLE_ENDIAN; |
1613 | else *endian = LTT_BIG_ENDIAN; |
1614 | |
1615 | if(sizeInt == 2 && sizeLong == 4 && sizePointer == 4) |
1616 | *size = LTT_LP32; |
1617 | else if(sizeInt == 4 && sizeLong == 4 && sizePointer == 4) |
1618 | *size = LTT_ILP32; |
1619 | else if(sizeInt == 4 && sizeLong == 8 && sizePointer == 8) |
1620 | *size = LTT_LP64; |
1621 | else if(sizeInt == 8 && sizeLong == 8 && sizePointer == 8) |
1622 | *size = LTT_ILP64; |
1623 | else *size = LTT_UNKNOWN; |
1624 | } |
1625 | |
a5dcde2f |
1626 | /* get the node name of the system */ |
1627 | |
1628 | char * ltt_trace_system_description_node_name (LttSystemDescription * s) |
1629 | { |
1630 | return s->node_name; |
1631 | } |
1632 | |
1633 | |
1634 | /* get the domain name of the system */ |
1635 | |
1636 | char * ltt_trace_system_description_domain_name (LttSystemDescription * s) |
1637 | { |
1638 | return s->domain_name; |
1639 | } |
1640 | |
1641 | |
1642 | /* get the description of the system */ |
1643 | |
1644 | char * ltt_trace_system_description_description (LttSystemDescription * s) |
1645 | { |
1646 | return s->description; |
1647 | } |
1648 | |
1649 | |
1650 | /* get the start time of the trace */ |
1651 | |
1652 | LttTime ltt_trace_system_description_trace_start_time(LttSystemDescription *s) |
1653 | { |
1654 | return s->trace_start; |
1655 | } |
1656 | |
18206708 |
1657 | |
1658 | LttTracefile *ltt_tracefile_new() |
1659 | { |
1660 | return g_new(LttTracefile, 1); |
1661 | } |
1662 | |
1663 | void ltt_tracefile_destroy(LttTracefile *tf) |
1664 | { |
1665 | g_free(tf); |
1666 | } |
1667 | |
1668 | void ltt_tracefile_copy(LttTracefile *dest, const LttTracefile *src) |
1669 | { |
1670 | *dest = *src; |
1671 | } |
1672 | |