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> |
6cd62ccf |
27 | |
ef35d837 |
28 | // For realpath |
29 | #include <limits.h> |
30 | #include <stdlib.h> |
31 | |
32 | |
6cd62ccf |
33 | #include "parser.h" |
a5dcde2f |
34 | #include <ltt/ltt.h> |
35 | #include "ltt-private.h" |
963b5f2d |
36 | #include <ltt/trace.h> |
a5dcde2f |
37 | #include <ltt/facility.h> |
c02ea99f |
38 | #include <ltt/event.h> |
8d1e6362 |
39 | #include <ltt/type.h> |
6cd62ccf |
40 | |
963b5f2d |
41 | #define DIR_NAME_SIZE 256 |
51b5991e |
42 | #define __UNUSED__ __attribute__((__unused__)) |
6cd62ccf |
43 | |
a1062ddd |
44 | #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format) |
45 | #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format) |
46 | |
8959a0c8 |
47 | |
48 | /* obtain the time of an event */ |
49 | |
50 | static inline LttTime getEventTime(LttTracefile * tf); |
51 | |
52 | |
6cd62ccf |
53 | /* set the offset of the fields belonging to the event, |
54 | need the information of the archecture */ |
40331ba8 |
55 | void setFieldsOffset(LttTracefile *tf,LttEventType *evT,void *evD,LttTrace *t); |
6cd62ccf |
56 | |
57 | /* get the size of the field type according to the archtecture's |
58 | size and endian type(info of the archecture) */ |
21182d4a |
59 | static inline gint getFieldtypeSize(LttTracefile * tf, |
60 | LttEventType * evT, gint offsetRoot, |
61 | gint offsetParent, LttField *fld, void *evD, LttTrace* t); |
6cd62ccf |
62 | |
63 | /* read a fixed size or a block information from the file (fd) */ |
64 | int readFile(int fd, void * buf, size_t size, char * mesg); |
963b5f2d |
65 | int readBlock(LttTracefile * tf, int whichBlock); |
6cd62ccf |
66 | |
67 | /* calculate cycles per nsec for current block */ |
963b5f2d |
68 | void getCyclePerNsec(LttTracefile * t); |
6cd62ccf |
69 | |
70 | /* reinitialize the info of the block which is already in the buffer */ |
963b5f2d |
71 | void updateTracefile(LttTracefile * tf); |
6cd62ccf |
72 | |
73 | /* go to the next event */ |
963b5f2d |
74 | int skipEvent(LttTracefile * t); |
6cd62ccf |
75 | |
6cd62ccf |
76 | |
43da6a59 |
77 | /* Functions to parse system.xml file (using glib xml parser) */ |
51b5991e |
78 | static void parser_start_element (GMarkupParseContext __UNUSED__ *context, |
43da6a59 |
79 | const gchar *element_name, |
80 | const gchar **attribute_names, |
81 | const gchar **attribute_values, |
82 | gpointer user_data, |
83 | GError **error) |
84 | { |
85 | int i=0; |
86 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
87 | if(strcmp("system", element_name)){ |
2a74fbf4 |
88 | *error = g_error_new(G_MARKUP_ERROR, |
89 | G_LOG_LEVEL_WARNING, |
90 | "This is not system.xml file"); |
91 | return; |
43da6a59 |
92 | } |
93 | |
94 | while(attribute_names[i]){ |
95 | if(strcmp("node_name", attribute_names[i])==0){ |
96 | des->node_name = g_strdup(attribute_values[i]); |
97 | }else if(strcmp("domainname", attribute_names[i])==0){ |
98 | des->domain_name = g_strdup(attribute_values[i]); |
99 | }else if(strcmp("cpu", attribute_names[i])==0){ |
100 | des->nb_cpu = atoi(attribute_values[i]); |
101 | }else if(strcmp("arch_size", attribute_names[i])==0){ |
102 | if(strcmp(attribute_values[i],"LP32") == 0) des->size = LTT_LP32; |
103 | else if(strcmp(attribute_values[i],"ILP32") == 0) des->size = LTT_ILP32; |
104 | else if(strcmp(attribute_values[i],"LP64") == 0) des->size = LTT_LP64; |
105 | else if(strcmp(attribute_values[i],"ILP64") == 0) des->size = LTT_ILP64; |
106 | else if(strcmp(attribute_values[i],"UNKNOWN") == 0) des->size = LTT_UNKNOWN; |
107 | }else if(strcmp("endian", attribute_names[i])==0){ |
108 | if(strcmp(attribute_values[i],"LITTLE_ENDIAN") == 0) |
109 | des->endian = LTT_LITTLE_ENDIAN; |
110 | else if(strcmp(attribute_values[i],"BIG_ENDIAN") == 0) |
111 | des->endian = LTT_BIG_ENDIAN; |
112 | }else if(strcmp("kernel_name", attribute_names[i])==0){ |
113 | des->kernel_name = g_strdup(attribute_values[i]); |
114 | }else if(strcmp("kernel_release", attribute_names[i])==0){ |
115 | des->kernel_release = g_strdup(attribute_values[i]); |
116 | }else if(strcmp("kernel_version", attribute_names[i])==0){ |
117 | des->kernel_version = g_strdup(attribute_values[i]); |
118 | }else if(strcmp("machine", attribute_names[i])==0){ |
119 | des->machine = g_strdup(attribute_values[i]); |
120 | }else if(strcmp("processor", attribute_names[i])==0){ |
121 | des->processor = g_strdup(attribute_values[i]); |
122 | }else if(strcmp("hardware_platform", attribute_names[i])==0){ |
123 | des->hardware_platform = g_strdup(attribute_values[i]); |
124 | }else if(strcmp("operating_system", attribute_names[i])==0){ |
125 | des->operating_system = g_strdup(attribute_values[i]); |
126 | }else if(strcmp("ltt_major_version", attribute_names[i])==0){ |
127 | des->ltt_major_version = atoi(attribute_values[i]); |
128 | }else if(strcmp("ltt_minor_version", attribute_names[i])==0){ |
129 | des->ltt_minor_version = atoi(attribute_values[i]); |
130 | }else if(strcmp("ltt_block_size", attribute_names[i])==0){ |
131 | des->ltt_block_size = atoi(attribute_values[i]); |
132 | }else{ |
2a74fbf4 |
133 | *error = g_error_new(G_MARKUP_ERROR, |
134 | G_LOG_LEVEL_WARNING, |
135 | "Not a valid attribute"); |
136 | return; |
43da6a59 |
137 | } |
138 | i++; |
139 | } |
140 | } |
141 | |
51b5991e |
142 | static void parser_characters (GMarkupParseContext __UNUSED__ *context, |
43da6a59 |
143 | const gchar *text, |
51b5991e |
144 | gsize __UNUSED__ text_len, |
43da6a59 |
145 | gpointer user_data, |
51b5991e |
146 | GError __UNUSED__ **error) |
43da6a59 |
147 | { |
148 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
149 | des->description = g_strdup(text); |
150 | } |
151 | |
152 | |
6cd62ccf |
153 | /***************************************************************************** |
154 | *Function name |
963b5f2d |
155 | * ltt_tracefile_open : open a trace file, construct a LttTracefile |
6cd62ccf |
156 | *Input params |
963b5f2d |
157 | * t : the trace containing the tracefile |
158 | * fileName : path name of the trace file |
6cd62ccf |
159 | *Return value |
963b5f2d |
160 | * : a pointer to a tracefile |
6cd62ccf |
161 | ****************************************************************************/ |
162 | |
963b5f2d |
163 | LttTracefile* ltt_tracefile_open(LttTrace * t, char * fileName) |
6cd62ccf |
164 | { |
963b5f2d |
165 | LttTracefile * tf; |
166 | struct stat lTDFStat; /* Trace data file status */ |
6cd62ccf |
167 | |
963b5f2d |
168 | tf = g_new(LttTracefile, 1); |
6cd62ccf |
169 | |
170 | //open the file |
963b5f2d |
171 | tf->name = g_strdup(fileName); |
172 | tf->trace = t; |
6cd62ccf |
173 | tf->fd = open(fileName, O_RDONLY, 0); |
174 | if(tf->fd < 0){ |
2a74fbf4 |
175 | g_warning("Unable to open input data file %s\n", fileName); |
176 | g_free(tf->name); |
177 | g_free(tf); |
178 | return NULL; |
6cd62ccf |
179 | } |
180 | |
181 | // Get the file's status |
182 | if(fstat(tf->fd, &lTDFStat) < 0){ |
2a74fbf4 |
183 | g_warning("Unable to get the status of the input data file %s\n", fileName); |
184 | g_free(tf->name); |
185 | close(tf->fd); |
186 | g_free(tf); |
187 | return NULL; |
6cd62ccf |
188 | } |
189 | |
190 | // Is the file large enough to contain a trace |
8d1e6362 |
191 | if(lTDFStat.st_size < (off_t)(sizeof(BlockStart) + EVENT_HEADER_SIZE)){ |
8710c6c7 |
192 | g_print("The input data file %s does not contain a trace\n", fileName); |
663bd9ff |
193 | g_free(tf->name); |
194 | close(tf->fd); |
195 | g_free(tf); |
8710c6c7 |
196 | return NULL; |
6cd62ccf |
197 | } |
198 | |
199 | //store the size of the file |
200 | tf->file_size = lTDFStat.st_size; |
963b5f2d |
201 | tf->block_size = t->system_description->ltt_block_size; |
202 | tf->block_number = tf->file_size / tf->block_size; |
203 | tf->which_block = 0; |
6cd62ccf |
204 | |
205 | //allocate memory to contain the info of a block |
963b5f2d |
206 | tf->buffer = (void *) g_new(char, t->system_description->ltt_block_size); |
6cd62ccf |
207 | |
963b5f2d |
208 | //read the first block |
209 | if(readBlock(tf,1)) exit(1); |
6cd62ccf |
210 | |
211 | return tf; |
212 | } |
213 | |
6cd62ccf |
214 | |
215 | /***************************************************************************** |
963b5f2d |
216 | *Open control and per cpu tracefiles |
6cd62ccf |
217 | ****************************************************************************/ |
218 | |
963b5f2d |
219 | void ltt_tracefile_open_cpu(LttTrace *t, char * tracefile_name) |
6cd62ccf |
220 | { |
963b5f2d |
221 | LttTracefile * tf; |
222 | tf = ltt_tracefile_open(t,tracefile_name); |
4a6c8e36 |
223 | if(!tf) return; |
963b5f2d |
224 | t->per_cpu_tracefile_number++; |
225 | g_ptr_array_add(t->per_cpu_tracefiles, tf); |
6cd62ccf |
226 | } |
227 | |
2a74fbf4 |
228 | gint ltt_tracefile_open_control(LttTrace *t, char * control_name) |
6cd62ccf |
229 | { |
963b5f2d |
230 | LttTracefile * tf; |
c02ea99f |
231 | LttEvent ev; |
963b5f2d |
232 | LttFacility * f; |
963b5f2d |
233 | void * pos; |
234 | FacilityLoad fLoad; |
8d1e6362 |
235 | unsigned int i; |
963b5f2d |
236 | |
237 | tf = ltt_tracefile_open(t,control_name); |
2a74fbf4 |
238 | if(!tf) { |
239 | g_warning("ltt_tracefile_open_control : bad file descriptor"); |
240 | return -1; |
241 | } |
963b5f2d |
242 | t->control_tracefile_number++; |
243 | g_ptr_array_add(t->control_tracefiles,tf); |
244 | |
245 | //parse facilities tracefile to get base_id |
542ceddd |
246 | if(strcmp(&control_name[strlen(control_name)-10],"facilities") ==0){ |
963b5f2d |
247 | while(1){ |
c02ea99f |
248 | if(!ltt_tracefile_read(tf,&ev)) return 0; // end of file |
40331ba8 |
249 | |
c02ea99f |
250 | if(ev.event_id == TRACE_FACILITY_LOAD){ |
251 | pos = ev.data; |
963b5f2d |
252 | fLoad.name = (char*)pos; |
47a166fc |
253 | fLoad.checksum = *(LttChecksum*)(pos + strlen(fLoad.name)); |
cbd41522 |
254 | fLoad.base_code = *(guint32 *)(pos + strlen(fLoad.name) + sizeof(LttChecksum)); |
963b5f2d |
255 | |
256 | for(i=0;i<t->facility_number;i++){ |
257 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
258 | if(strcmp(f->name,fLoad.name)==0 && fLoad.checksum==f->checksum){ |
259 | f->base_id = fLoad.base_code; |
260 | break; |
261 | } |
262 | } |
2a74fbf4 |
263 | if(i==t->facility_number) { |
8d1e6362 |
264 | g_warning("Facility: %s, checksum: %u is not found", |
265 | fLoad.name,(unsigned int)fLoad.checksum); |
2a74fbf4 |
266 | return -1; |
267 | } |
c02ea99f |
268 | }else if(ev.event_id == TRACE_BLOCK_START){ |
40331ba8 |
269 | continue; |
c02ea99f |
270 | }else if(ev.event_id == TRACE_BLOCK_END){ |
40331ba8 |
271 | break; |
2a74fbf4 |
272 | }else { |
8d1e6362 |
273 | g_warning("Not valid facilities trace file"); |
2a74fbf4 |
274 | return -1; |
275 | } |
963b5f2d |
276 | } |
277 | } |
2a74fbf4 |
278 | return 0; |
6cd62ccf |
279 | } |
280 | |
281 | /***************************************************************************** |
282 | *Function name |
963b5f2d |
283 | * ltt_tracefile_close: close a trace file, |
6cd62ccf |
284 | *Input params |
963b5f2d |
285 | * t : tracefile which will be closed |
6cd62ccf |
286 | ****************************************************************************/ |
287 | |
963b5f2d |
288 | void ltt_tracefile_close(LttTracefile *t) |
6cd62ccf |
289 | { |
963b5f2d |
290 | g_free(t->name); |
291 | g_free(t->buffer); |
663bd9ff |
292 | close(t->fd); |
963b5f2d |
293 | g_free(t); |
294 | } |
6cd62ccf |
295 | |
6cd62ccf |
296 | |
963b5f2d |
297 | /***************************************************************************** |
298 | *Get system information |
299 | ****************************************************************************/ |
2a74fbf4 |
300 | gint getSystemInfo(LttSystemDescription* des, char * pathname) |
963b5f2d |
301 | { |
302 | FILE * fp; |
963b5f2d |
303 | char buf[DIR_NAME_SIZE]; |
43da6a59 |
304 | |
305 | GMarkupParseContext * context; |
2a74fbf4 |
306 | GError * error = NULL; |
43da6a59 |
307 | GMarkupParser markup_parser = |
308 | { |
309 | parser_start_element, |
8d1e6362 |
310 | NULL, |
43da6a59 |
311 | parser_characters, |
312 | NULL, /* passthrough */ |
313 | NULL /* error */ |
314 | }; |
963b5f2d |
315 | |
316 | fp = fopen(pathname,"r"); |
317 | if(!fp){ |
2a74fbf4 |
318 | g_warning("Can not open file : %s\n", pathname); |
319 | return -1; |
6cd62ccf |
320 | } |
963b5f2d |
321 | |
43da6a59 |
322 | context = g_markup_parse_context_new(&markup_parser, 0, des,NULL); |
6cd62ccf |
323 | |
43da6a59 |
324 | while(fgets(buf,DIR_NAME_SIZE, fp) != NULL){ |
325 | if(!g_markup_parse_context_parse(context, buf, DIR_NAME_SIZE, &error)){ |
2a74fbf4 |
326 | if(error != NULL) { |
327 | g_warning("Can not parse xml file: \n%s\n", error->message); |
328 | g_error_free(error); |
329 | } |
330 | g_markup_parse_context_free(context); |
331 | fclose(fp); |
332 | return -1; |
43da6a59 |
333 | } |
963b5f2d |
334 | } |
2a74fbf4 |
335 | g_markup_parse_context_free(context); |
963b5f2d |
336 | fclose(fp); |
2a74fbf4 |
337 | return 0; |
6cd62ccf |
338 | } |
339 | |
340 | /***************************************************************************** |
963b5f2d |
341 | *The following functions get facility/tracefile information |
6cd62ccf |
342 | ****************************************************************************/ |
343 | |
2a74fbf4 |
344 | gint getFacilityInfo(LttTrace *t, char* eventdefs) |
6cd62ccf |
345 | { |
963b5f2d |
346 | DIR * dir; |
347 | struct dirent *entry; |
348 | char * ptr; |
8d1e6362 |
349 | unsigned int i,j; |
963b5f2d |
350 | LttFacility * f; |
351 | LttEventType * et; |
e8bb1a73 |
352 | char name[DIR_NAME_SIZE]; |
963b5f2d |
353 | |
354 | dir = opendir(eventdefs); |
2a74fbf4 |
355 | if(!dir) { |
356 | g_warning("Can not open directory: %s\n", eventdefs); |
357 | return -1; |
358 | } |
963b5f2d |
359 | |
360 | while((entry = readdir(dir)) != NULL){ |
361 | ptr = &entry->d_name[strlen(entry->d_name)-4]; |
362 | if(strcmp(ptr,".xml") != 0) continue; |
e8bb1a73 |
363 | strcpy(name,eventdefs); |
364 | strcat(name,entry->d_name); |
365 | ltt_facility_open(t,name); |
963b5f2d |
366 | } |
367 | closedir(dir); |
368 | |
963b5f2d |
369 | for(j=0;j<t->facility_number;j++){ |
8710c6c7 |
370 | f = (LttFacility*)g_ptr_array_index(t->facilities, j); |
963b5f2d |
371 | for(i=0; i<f->event_number; i++){ |
372 | et = f->events[i]; |
40331ba8 |
373 | setFieldsOffset(NULL, et, NULL, t); |
963b5f2d |
374 | } |
375 | } |
2a74fbf4 |
376 | return 0; |
963b5f2d |
377 | } |
6cd62ccf |
378 | |
2a74fbf4 |
379 | gint getControlFileInfo(LttTrace *t, char* control) |
6cd62ccf |
380 | { |
963b5f2d |
381 | DIR * dir; |
382 | struct dirent *entry; |
e8bb1a73 |
383 | char name[DIR_NAME_SIZE]; |
963b5f2d |
384 | |
385 | dir = opendir(control); |
2a74fbf4 |
386 | if(!dir) { |
387 | g_warning("Can not open directory: %s\n", control); |
388 | return -1; |
389 | } |
963b5f2d |
390 | |
391 | while((entry = readdir(dir)) != NULL){ |
8710c6c7 |
392 | if(strcmp(entry->d_name,"facilities") != 0 && |
393 | strcmp(entry->d_name,"interrupts") != 0 && |
963b5f2d |
394 | strcmp(entry->d_name,"processes") != 0) continue; |
395 | |
e8bb1a73 |
396 | strcpy(name,control); |
397 | strcat(name,entry->d_name); |
2a74fbf4 |
398 | if(ltt_tracefile_open_control(t,name)) |
399 | return -1; |
963b5f2d |
400 | } |
401 | closedir(dir); |
2a74fbf4 |
402 | return 0; |
6cd62ccf |
403 | } |
404 | |
2a74fbf4 |
405 | gint getCpuFileInfo(LttTrace *t, char* cpu) |
6cd62ccf |
406 | { |
963b5f2d |
407 | DIR * dir; |
408 | struct dirent *entry; |
e8bb1a73 |
409 | char name[DIR_NAME_SIZE]; |
963b5f2d |
410 | |
411 | dir = opendir(cpu); |
2a74fbf4 |
412 | if(!dir) { |
413 | g_warning("Can not open directory: %s\n", cpu); |
414 | return -1; |
415 | } |
963b5f2d |
416 | |
417 | while((entry = readdir(dir)) != NULL){ |
8710c6c7 |
418 | if(strcmp(entry->d_name,".") != 0 && |
a614481a |
419 | strcmp(entry->d_name,"..") != 0 && |
420 | strcmp(entry->d_name,".svn") != 0){ |
e8bb1a73 |
421 | strcpy(name,cpu); |
422 | strcat(name,entry->d_name); |
423 | ltt_tracefile_open_cpu(t,name); |
963b5f2d |
424 | }else continue; |
425 | } |
426 | closedir(dir); |
2a74fbf4 |
427 | return 0; |
6cd62ccf |
428 | } |
429 | |
963b5f2d |
430 | /***************************************************************************** |
431 | *A trace is specified as a pathname to the directory containing all the |
432 | *associated data (control tracefiles, per cpu tracefiles, event |
433 | *descriptions...). |
434 | * |
435 | *When a trace is closed, all the associated facilities, types and fields |
436 | *are released as well. |
8d1e6362 |
437 | */ |
438 | |
439 | |
440 | /**************************************************************************** |
441 | * get_absolute_pathname |
803229fa |
442 | * |
8d1e6362 |
443 | * return the unique pathname in the system |
444 | * |
ef35d837 |
445 | * MD : Fixed this function so it uses realpath, dealing well with |
446 | * forgotten cases (.. were not used correctly before). |
803229fa |
447 | * |
963b5f2d |
448 | ****************************************************************************/ |
9f797243 |
449 | void get_absolute_pathname(const char *pathname, char * abs_pathname) |
450 | { |
9f797243 |
451 | abs_pathname[0] = '\0'; |
803229fa |
452 | |
ef35d837 |
453 | if ( realpath (pathname, abs_pathname) != NULL) |
454 | return; |
455 | else |
456 | { |
8d1e6362 |
457 | /* error, return the original path unmodified */ |
ef35d837 |
458 | strcpy(abs_pathname, pathname); |
9f797243 |
459 | return; |
460 | } |
ef35d837 |
461 | return; |
9f797243 |
462 | } |
463 | |
f7afe191 |
464 | LttTrace *ltt_trace_open(const char *pathname) |
6cd62ccf |
465 | { |
963b5f2d |
466 | LttTrace * t; |
467 | LttSystemDescription * sys_description; |
468 | char eventdefs[DIR_NAME_SIZE]; |
469 | char info[DIR_NAME_SIZE]; |
470 | char control[DIR_NAME_SIZE]; |
471 | char cpu[DIR_NAME_SIZE]; |
472 | char tmp[DIR_NAME_SIZE]; |
9f797243 |
473 | char abs_path[DIR_NAME_SIZE]; |
963b5f2d |
474 | gboolean has_slash = FALSE; |
475 | |
9f797243 |
476 | get_absolute_pathname(pathname, abs_path); |
963b5f2d |
477 | //establish the pathname to different directories |
9f797243 |
478 | if(abs_path[strlen(abs_path)-1] == '/')has_slash = TRUE; |
479 | strcpy(eventdefs,abs_path); |
963b5f2d |
480 | if(!has_slash)strcat(eventdefs,"/"); |
481 | strcat(eventdefs,"eventdefs/"); |
482 | |
9f797243 |
483 | strcpy(info,abs_path); |
963b5f2d |
484 | if(!has_slash)strcat(info,"/"); |
485 | strcat(info,"info/"); |
486 | |
9f797243 |
487 | strcpy(control,abs_path); |
963b5f2d |
488 | if(!has_slash)strcat(control,"/"); |
489 | strcat(control,"control/"); |
490 | |
9f797243 |
491 | strcpy(cpu,abs_path); |
963b5f2d |
492 | if(!has_slash)strcat(cpu,"/"); |
493 | strcat(cpu,"cpu/"); |
494 | |
495 | //new trace |
963b5f2d |
496 | sys_description = g_new(LttSystemDescription, 1); |
2a74fbf4 |
497 | t = g_new(LttTrace, 1); |
9f797243 |
498 | t->pathname = g_strdup(abs_path); |
963b5f2d |
499 | t->facility_number = 0; |
500 | t->control_tracefile_number = 0; |
501 | t->per_cpu_tracefile_number = 0; |
502 | t->system_description = sys_description; |
503 | t->control_tracefiles = g_ptr_array_new(); |
504 | t->per_cpu_tracefiles = g_ptr_array_new(); |
505 | t->facilities = g_ptr_array_new(); |
506 | getDataEndianType(&(t->my_arch_size), &(t->my_arch_endian)); |
507 | |
508 | //get system description |
509 | strcpy(tmp,info); |
510 | strcat(tmp,"system.xml"); |
2a74fbf4 |
511 | if(getSystemInfo(sys_description, tmp)) { |
512 | g_ptr_array_free(t->facilities, TRUE); |
513 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
514 | g_ptr_array_free(t->control_tracefiles, TRUE); |
515 | g_free(sys_description); |
516 | g_free(t->pathname); |
517 | g_free(t); |
518 | return NULL; |
519 | } |
520 | |
521 | |
963b5f2d |
522 | |
b333a76b |
523 | //get facilities info |
2a74fbf4 |
524 | if(getFacilityInfo(t,eventdefs)) { |
525 | g_ptr_array_free(t->facilities, TRUE); |
526 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
527 | g_ptr_array_free(t->control_tracefiles, TRUE); |
528 | g_free(sys_description); |
529 | g_free(t->pathname); |
530 | g_free(t); |
531 | return NULL; |
532 | } |
b333a76b |
533 | |
963b5f2d |
534 | //get control tracefile info |
a00149f6 |
535 | getControlFileInfo(t,control); |
536 | /* |
2a74fbf4 |
537 | if(getControlFileInfo(t,control)) { |
538 | g_ptr_array_free(t->facilities, TRUE); |
539 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
540 | g_ptr_array_free(t->control_tracefiles, TRUE); |
541 | g_free(sys_description); |
542 | g_free(t->pathname); |
543 | g_free(t); |
544 | return NULL; |
a00149f6 |
545 | }*/ // With fatal error |
963b5f2d |
546 | |
547 | //get cpu tracefile info |
2a74fbf4 |
548 | if(getCpuFileInfo(t,cpu)) { |
549 | g_ptr_array_free(t->facilities, TRUE); |
550 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
551 | g_ptr_array_free(t->control_tracefiles, TRUE); |
552 | g_free(sys_description); |
553 | g_free(t->pathname); |
554 | g_free(t); |
555 | return NULL; |
556 | } |
963b5f2d |
557 | |
963b5f2d |
558 | return t; |
6cd62ccf |
559 | } |
560 | |
49bf71b5 |
561 | char * ltt_trace_name(LttTrace *t) |
562 | { |
563 | return t->pathname; |
564 | } |
565 | |
566 | |
f7afe191 |
567 | /****************************************************************************** |
568 | * When we copy a trace, we want all the opening actions to happen again : |
569 | * the trace will be reopened and totally independant from the original. |
570 | * That's why we call ltt_trace_open. |
571 | *****************************************************************************/ |
572 | LttTrace *ltt_trace_copy(LttTrace *self) |
573 | { |
574 | return ltt_trace_open(self->pathname); |
575 | } |
576 | |
963b5f2d |
577 | void ltt_trace_close(LttTrace *t) |
6cd62ccf |
578 | { |
8d1e6362 |
579 | unsigned int i; |
963b5f2d |
580 | LttTracefile * tf; |
581 | LttFacility * f; |
582 | |
583 | g_free(t->pathname); |
584 | |
585 | //free system_description |
586 | g_free(t->system_description->description); |
587 | g_free(t->system_description->node_name); |
588 | g_free(t->system_description->domain_name); |
589 | g_free(t->system_description->kernel_name); |
590 | g_free(t->system_description->kernel_release); |
591 | g_free(t->system_description->kernel_version); |
592 | g_free(t->system_description->machine); |
593 | g_free(t->system_description->processor); |
594 | g_free(t->system_description->hardware_platform); |
595 | g_free(t->system_description->operating_system); |
596 | g_free(t->system_description); |
597 | |
598 | //free control_tracefiles |
599 | for(i=0;i<t->control_tracefile_number;i++){ |
600 | tf = (LttTracefile*)g_ptr_array_index(t->control_tracefiles,i); |
601 | ltt_tracefile_close(tf); |
602 | } |
09ad4797 |
603 | g_ptr_array_free(t->control_tracefiles, TRUE); |
963b5f2d |
604 | |
605 | //free per_cpu_tracefiles |
606 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
607 | tf = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles,i); |
608 | ltt_tracefile_close(tf); |
609 | } |
09ad4797 |
610 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
963b5f2d |
611 | |
612 | //free facilities |
613 | for(i=0;i<t->facility_number;i++){ |
614 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
615 | ltt_facility_close(f); |
616 | } |
09ad4797 |
617 | g_ptr_array_free(t->facilities, TRUE); |
963b5f2d |
618 | |
619 | g_free(t); |
09ad4797 |
620 | |
621 | g_blow_chunks(); |
6cd62ccf |
622 | } |
623 | |
963b5f2d |
624 | |
6cd62ccf |
625 | /***************************************************************************** |
963b5f2d |
626 | *Get the system description of the trace |
6cd62ccf |
627 | ****************************************************************************/ |
628 | |
963b5f2d |
629 | LttSystemDescription *ltt_trace_system_description(LttTrace *t) |
6cd62ccf |
630 | { |
963b5f2d |
631 | return t->system_description; |
6cd62ccf |
632 | } |
633 | |
634 | /***************************************************************************** |
963b5f2d |
635 | * The following functions discover the facilities of the trace |
6cd62ccf |
636 | ****************************************************************************/ |
637 | |
963b5f2d |
638 | unsigned ltt_trace_facility_number(LttTrace *t) |
639 | { |
640 | return (unsigned)(t->facility_number); |
641 | } |
642 | |
643 | LttFacility *ltt_trace_facility_get(LttTrace *t, unsigned i) |
6cd62ccf |
644 | { |
963b5f2d |
645 | return (LttFacility*)g_ptr_array_index(t->facilities, i); |
6cd62ccf |
646 | } |
647 | |
648 | /***************************************************************************** |
649 | *Function name |
963b5f2d |
650 | * ltt_trace_facility_find : find facilities in the trace |
6cd62ccf |
651 | *Input params |
963b5f2d |
652 | * t : the trace |
653 | * name : facility name |
654 | *Output params |
655 | * position : position of the facility in the trace |
6cd62ccf |
656 | *Return value |
963b5f2d |
657 | * : the number of facilities |
6cd62ccf |
658 | ****************************************************************************/ |
659 | |
963b5f2d |
660 | unsigned ltt_trace_facility_find(LttTrace *t, char *name, unsigned *position) |
6cd62ccf |
661 | { |
8d1e6362 |
662 | unsigned int i, count=0; |
963b5f2d |
663 | LttFacility * f; |
8a3005f3 |
664 | for(i=0;i<t->facility_number;i++){ |
963b5f2d |
665 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
666 | if(strcmp(f->name,name)==0){ |
667 | count++; |
668 | if(count==1) *position = i; |
669 | }else{ |
670 | if(count) break; |
671 | } |
672 | } |
673 | return count; |
6cd62ccf |
674 | } |
675 | |
676 | /***************************************************************************** |
963b5f2d |
677 | * Functions to discover all the event types in the trace |
6cd62ccf |
678 | ****************************************************************************/ |
679 | |
963b5f2d |
680 | unsigned ltt_trace_eventtype_number(LttTrace *t) |
6cd62ccf |
681 | { |
8d1e6362 |
682 | unsigned int i; |
963b5f2d |
683 | unsigned count = 0; |
dc1cad90 |
684 | unsigned int num = t->facility_number; |
963b5f2d |
685 | LttFacility * f; |
dc1cad90 |
686 | |
687 | for(i=0;i<num;i++){ |
963b5f2d |
688 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
689 | count += f->event_number; |
690 | } |
691 | return count; |
6cd62ccf |
692 | } |
693 | |
155a7b0a |
694 | /* FIXME : performances could be improved with a better design for this |
6e8c19d4 |
695 | * function : sequential search through a container has never been the |
696 | * best on the critical path. */ |
963b5f2d |
697 | LttFacility * ltt_trace_facility_by_id(LttTrace * trace, unsigned id) |
6cd62ccf |
698 | { |
cf74a6f1 |
699 | LttFacility * facility = NULL; |
8d1e6362 |
700 | unsigned int i; |
dc1cad90 |
701 | unsigned int num = trace->facility_number; |
702 | GPtrArray *facilities = trace->facilities; |
cf74a6f1 |
703 | |
dc1cad90 |
704 | for(i=0;unlikely(i<num);){ |
cf74a6f1 |
705 | LttFacility *iter_facility = |
dc1cad90 |
706 | (LttFacility*) g_ptr_array_index(facilities,i); |
707 | unsigned base_id = iter_facility->base_id; |
708 | |
709 | if(likely(id >= base_id && |
710 | id < base_id + iter_facility->event_number)) { |
cf74a6f1 |
711 | facility = iter_facility; |
963b5f2d |
712 | break; |
dc1cad90 |
713 | } else { |
714 | i++; |
cf74a6f1 |
715 | } |
963b5f2d |
716 | } |
dc1cad90 |
717 | |
cf74a6f1 |
718 | return facility; |
6cd62ccf |
719 | } |
720 | |
963b5f2d |
721 | LttEventType *ltt_trace_eventtype_get(LttTrace *t, unsigned evId) |
6cd62ccf |
722 | { |
6e8c19d4 |
723 | LttEventType *event_type; |
724 | |
963b5f2d |
725 | LttFacility * f; |
726 | f = ltt_trace_facility_by_id(t,evId); |
6e8c19d4 |
727 | |
728 | if(unlikely(!f)) event_type = NULL; |
729 | else event_type = f->events[evId - f->base_id]; |
730 | |
731 | return event_type; |
6cd62ccf |
732 | } |
733 | |
734 | /***************************************************************************** |
963b5f2d |
735 | *There is one "per cpu" tracefile for each CPU, numbered from 0 to |
736 | *the maximum number of CPU in the system. When the number of CPU installed |
737 | *is less than the maximum, some positions are unused. There are also a |
738 | *number of "control" tracefiles (facilities, interrupts...). |
6cd62ccf |
739 | ****************************************************************************/ |
963b5f2d |
740 | unsigned ltt_trace_control_tracefile_number(LttTrace *t) |
6cd62ccf |
741 | { |
963b5f2d |
742 | return t->control_tracefile_number; |
6cd62ccf |
743 | } |
744 | |
963b5f2d |
745 | unsigned ltt_trace_per_cpu_tracefile_number(LttTrace *t) |
6cd62ccf |
746 | { |
963b5f2d |
747 | return t->per_cpu_tracefile_number; |
6cd62ccf |
748 | } |
749 | |
750 | /***************************************************************************** |
963b5f2d |
751 | *It is possible to search for the tracefiles by name or by CPU position. |
752 | *The index within the tracefiles of the same type is returned if found |
753 | *and a negative value otherwise. |
6cd62ccf |
754 | ****************************************************************************/ |
755 | |
8d1e6362 |
756 | int ltt_trace_control_tracefile_find(LttTrace *t, const gchar *name) |
6cd62ccf |
757 | { |
963b5f2d |
758 | LttTracefile * tracefile; |
8d1e6362 |
759 | unsigned int i; |
963b5f2d |
760 | for(i=0;i<t->control_tracefile_number;i++){ |
761 | tracefile = (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i); |
762 | if(strcmp(tracefile->name, name)==0)break; |
763 | } |
764 | if(i == t->control_tracefile_number) return -1; |
765 | return i; |
6cd62ccf |
766 | } |
767 | |
8d1e6362 |
768 | /* not really useful. We just have to know that cpu tracefiles |
769 | * comes before control tracefiles. |
770 | */ |
771 | int ltt_trace_per_cpu_tracefile_find(LttTrace *t, const gchar *name) |
6cd62ccf |
772 | { |
963b5f2d |
773 | LttTracefile * tracefile; |
8d1e6362 |
774 | unsigned int i; |
775 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
776 | tracefile = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, i); |
777 | if(strcmp(tracefile->name, name)==0)break; |
963b5f2d |
778 | } |
8d1e6362 |
779 | if(i == t->per_cpu_tracefile_number) return -1; |
780 | return i; |
6cd62ccf |
781 | } |
782 | |
783 | /***************************************************************************** |
963b5f2d |
784 | *Get a specific tracefile |
6cd62ccf |
785 | ****************************************************************************/ |
786 | |
963b5f2d |
787 | LttTracefile *ltt_trace_control_tracefile_get(LttTrace *t, unsigned i) |
6cd62ccf |
788 | { |
5598cfe3 |
789 | return (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i); |
963b5f2d |
790 | } |
791 | |
792 | LttTracefile *ltt_trace_per_cpu_tracefile_get(LttTrace *t, unsigned i) |
793 | { |
794 | return (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, i); |
6cd62ccf |
795 | } |
796 | |
487ad181 |
797 | /***************************************************************************** |
798 | * Get the start time and end time of the trace |
799 | ****************************************************************************/ |
800 | |
801 | void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end) |
802 | { |
803 | LttTime startSmall, startTmp, endBig, endTmp; |
8d1e6362 |
804 | unsigned int i, j=0; |
487ad181 |
805 | LttTracefile * tf; |
806 | |
807 | for(i=0;i<t->control_tracefile_number;i++){ |
808 | tf = g_ptr_array_index(t->control_tracefiles, i); |
809 | readBlock(tf,1); |
810 | startTmp = tf->a_block_start->time; |
811 | readBlock(tf,tf->block_number); |
812 | endTmp = tf->a_block_end->time; |
813 | if(i==0){ |
814 | startSmall = startTmp; |
815 | endBig = endTmp; |
816 | j = 1; |
817 | continue; |
818 | } |
308711e5 |
819 | if(ltt_time_compare(startSmall,startTmp) > 0) startSmall = startTmp; |
820 | if(ltt_time_compare(endBig,endTmp) < 0) endBig = endTmp; |
487ad181 |
821 | } |
822 | |
823 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
824 | tf = g_ptr_array_index(t->per_cpu_tracefiles, i); |
825 | readBlock(tf,1); |
826 | startTmp = tf->a_block_start->time; |
827 | readBlock(tf,tf->block_number); |
828 | endTmp = tf->a_block_end->time; |
829 | if(j == 0 && i==0){ |
830 | startSmall = startTmp; |
831 | endBig = endTmp; |
832 | continue; |
833 | } |
308711e5 |
834 | if(ltt_time_compare(startSmall,startTmp) > 0) startSmall = startTmp; |
835 | if(ltt_time_compare(endBig,endTmp) < 0) endBig = endTmp; |
487ad181 |
836 | } |
837 | |
c02ea99f |
838 | if(start != NULL) *start = startSmall; |
839 | if(end != NULL) *end = endBig; |
487ad181 |
840 | } |
841 | |
842 | |
6cd62ccf |
843 | /***************************************************************************** |
963b5f2d |
844 | *Get the name of a tracefile |
6cd62ccf |
845 | ****************************************************************************/ |
846 | |
963b5f2d |
847 | char *ltt_tracefile_name(LttTracefile *tf) |
6cd62ccf |
848 | { |
963b5f2d |
849 | return tf->name; |
6cd62ccf |
850 | } |
851 | |
80da81ad |
852 | /***************************************************************************** |
853 | * Get the number of blocks in the tracefile |
854 | ****************************************************************************/ |
855 | |
856 | unsigned ltt_tracefile_block_number(LttTracefile *tf) |
857 | { |
858 | return tf->block_number; |
859 | } |
860 | |
6cd62ccf |
861 | /***************************************************************************** |
862 | *Function name |
863 | * ltt_tracefile_seek_time: seek to the first event of the trace with time |
864 | * larger or equal to time |
865 | *Input params |
866 | * t : tracefile |
867 | * time : criteria of the time |
6cd62ccf |
868 | ****************************************************************************/ |
caf7a67a |
869 | void ltt_tracefile_find_time_block(LttTracefile *t, LttTime time, |
870 | int start_block, int end_block) |
871 | { |
872 | int err, tmp_block, s, e; |
873 | int headTime; |
874 | int tailTime; |
875 | |
876 | err=readBlock(t,start_block); |
877 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
878 | if(start_block == end_block)return; |
879 | |
880 | tailTime = ltt_time_compare(t->a_block_end->time, time); |
881 | if(tailTime >= 0) return; |
882 | |
883 | err=readBlock(t,end_block); |
884 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
885 | if(start_block+1 == end_block)return; |
886 | |
887 | headTime = ltt_time_compare(t->a_block_start->time, time); |
888 | if(headTime <= 0 ) return; |
889 | |
890 | tmp_block = (end_block + start_block)/2; |
891 | err=readBlock(t,tmp_block); |
892 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
893 | |
894 | headTime = ltt_time_compare(t->a_block_start->time, time); |
895 | tailTime = ltt_time_compare(t->a_block_end->time, time); |
896 | if(headTime <= 0 && tailTime >= 0) return; |
897 | |
898 | if(headTime > 0){ |
899 | s = start_block + 1; |
900 | e = tmp_block - 1; |
901 | if(s <= e) |
902 | ltt_tracefile_find_time_block(t, time, s, e); |
903 | else return; |
904 | } |
905 | |
906 | if(tailTime < 0){ |
907 | s = tmp_block + 1; |
908 | e = end_block - 1; |
909 | if(s <= e) |
910 | ltt_tracefile_find_time_block(t, time, s, e); |
911 | else return; |
912 | } |
913 | } |
914 | |
915 | void ltt_tracefile_backward_find_time_block(LttTracefile *t, LttTime time) |
916 | { |
917 | int t_time, h_time, err; |
918 | err=readBlock(t,t->which_block-1); |
919 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
920 | h_time = ltt_time_compare(t->a_block_start->time, time); |
921 | t_time = ltt_time_compare(t->a_block_end->time, time); |
922 | if(h_time == 0){ |
923 | int tmp; |
924 | if(t->which_block == 1) return; |
925 | err=readBlock(t,t->which_block-1); |
926 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
927 | tmp = ltt_time_compare(t->a_block_end->time, time); |
928 | if(tmp == 0) return ltt_tracefile_seek_time(t, time); |
929 | err=readBlock(t,t->which_block+1); |
930 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
931 | }else if(h_time > 0){ |
932 | ltt_tracefile_find_time_block(t, time, 1, t->which_block); |
933 | return ltt_tracefile_seek_time(t, time) ; |
934 | }else{ |
935 | if(t_time >= 0) return ltt_tracefile_seek_time(t, time); |
936 | err=readBlock(t,t->which_block+1); |
937 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
938 | } |
939 | } |
6cd62ccf |
940 | |
963b5f2d |
941 | void ltt_tracefile_seek_time(LttTracefile *t, LttTime time) |
6cd62ccf |
942 | { |
943 | int err; |
963b5f2d |
944 | LttTime lttTime; |
308711e5 |
945 | int headTime = ltt_time_compare(t->a_block_start->time, time); |
946 | int tailTime = ltt_time_compare(t->a_block_end->time, time); |
c02ea99f |
947 | LttEvent ev; |
62e55dd6 |
948 | |
6cd62ccf |
949 | if(headTime < 0 && tailTime > 0){ |
308711e5 |
950 | if(ltt_time_compare(t->a_block_end->time, t->current_event_time) !=0) { |
db55eaae |
951 | lttTime = getEventTime(t); |
308711e5 |
952 | err = ltt_time_compare(lttTime, time); |
db55eaae |
953 | if(err > 0){ |
8d1e6362 |
954 | if(t->which_event==2 || ltt_time_compare(t->prev_event_time,time)<0){ |
1a3b8cbd |
955 | return; |
db55eaae |
956 | }else{ |
957 | updateTracefile(t); |
958 | return ltt_tracefile_seek_time(t, time); |
1a3b8cbd |
959 | } |
db55eaae |
960 | }else if(err < 0){ |
961 | while(1){ |
c02ea99f |
962 | if(ltt_tracefile_read(t,&ev) == NULL) { |
db55eaae |
963 | g_print("End of file\n"); |
964 | return; |
965 | } |
966 | lttTime = getEventTime(t); |
308711e5 |
967 | err = ltt_time_compare(lttTime, time); |
db55eaae |
968 | if(err >= 0)return; |
969 | } |
970 | }else return; |
971 | }else{//we are at the end of the block |
972 | updateTracefile(t); |
973 | return ltt_tracefile_seek_time(t, time); |
974 | } |
e37c1372 |
975 | }else if(headTime >= 0){ |
6cd62ccf |
976 | if(t->which_block == 1){ |
977 | updateTracefile(t); |
978 | }else{ |
1ee6a9af |
979 | if(ltt_time_compare(t->prev_block_end_time, time) >= 0 || |
980 | (t->prev_block_end_time.tv_sec == 0 && |
981 | t->prev_block_end_time.tv_nsec == 0 )){ |
caf7a67a |
982 | ltt_tracefile_backward_find_time_block(t, time); |
6cd62ccf |
983 | }else{ |
984 | updateTracefile(t); |
985 | } |
986 | } |
40331ba8 |
987 | }else if(tailTime < 0){ |
6cd62ccf |
988 | if(t->which_block != t->block_number){ |
caf7a67a |
989 | ltt_tracefile_find_time_block(t, time, t->which_block+1, t->block_number); |
990 | return ltt_tracefile_seek_time(t, time); |
963b5f2d |
991 | }else { |
a8c0f09d |
992 | t->cur_event_pos = t->buffer + t->block_size; |
993 | g_print("End of file\n"); |
963b5f2d |
994 | return; |
995 | } |
40331ba8 |
996 | }else if(tailTime == 0){ |
e37c1372 |
997 | t->cur_event_pos = t->last_event_pos; |
62e55dd6 |
998 | t->current_event_time = time; |
999 | t->cur_heart_beat_number = 0; |
1000 | t->prev_event_time.tv_sec = 0; |
1001 | t->prev_event_time.tv_nsec = 0; |
40331ba8 |
1002 | return; |
6cd62ccf |
1003 | } |
6cd62ccf |
1004 | } |
1005 | |
80da81ad |
1006 | /***************************************************************************** |
1007 | * Seek to the first event with position equal or larger to ep |
18206708 |
1008 | * |
1009 | * Modified by Mathieu Desnoyers to used faster offset position instead of |
1010 | * re-reading the whole buffer. |
80da81ad |
1011 | ****************************************************************************/ |
1012 | |
04b44e05 |
1013 | void ltt_tracefile_seek_position(LttTracefile *t, const LttEventPosition *ep) |
80da81ad |
1014 | { |
1015 | //if we are at the right place, just return |
155a7b0a |
1016 | if(likely(t->which_block == ep->block_num && t->which_event == ep->event_num)) |
80da81ad |
1017 | return; |
1018 | |
155a7b0a |
1019 | if(likely(t->which_block == ep->block_num)) updateTracefile(t); |
80da81ad |
1020 | else readBlock(t,ep->block_num); |
18206708 |
1021 | //event offset is available |
155a7b0a |
1022 | if(likely(ep->old_position)){ |
18206708 |
1023 | int err; |
1024 | |
1025 | t->which_event = ep->event_num; |
80da81ad |
1026 | t->cur_event_pos = t->buffer + ep->event_offset; |
18206708 |
1027 | t->prev_event_time = ep->event_time; |
1028 | t->current_event_time = ep->event_time; |
1029 | t->cur_heart_beat_number = ep->heart_beat_number; |
1030 | t->cur_cycle_count = ep->event_cycle_count; |
1031 | |
1032 | /* This is a workaround for fast position seek */ |
1033 | t->last_event_pos = ep->last_event_pos; |
1034 | t->prev_block_end_time = ep->prev_block_end_time; |
1035 | t->prev_event_time = ep->prev_event_time; |
1036 | t->pre_cycle_count = ep->pre_cycle_count; |
1037 | t->count = ep->count; |
2dee981d |
1038 | t->overflow_nsec = ep->overflow_nsec; |
18206708 |
1039 | /* end of workaround */ |
1040 | |
1041 | //update the fields of the current event and go to the next event |
1042 | err = skipEvent(t); |
155a7b0a |
1043 | if(unlikely(err == ERANGE)) g_error("event id is out of range\n"); |
18206708 |
1044 | |
80da81ad |
1045 | return; |
1046 | } |
1047 | |
18206708 |
1048 | //only block number and event index are available |
1049 | //MD: warning : this is slow! |
1050 | g_warning("using slow O(n) tracefile seek position"); |
1051 | |
c02ea99f |
1052 | LttEvent event; |
155a7b0a |
1053 | while(likely(t->which_event < ep->event_num)) ltt_tracefile_read(t, &event); |
80da81ad |
1054 | |
1055 | return; |
1056 | } |
1057 | |
6cd62ccf |
1058 | /***************************************************************************** |
1059 | *Function name |
40331ba8 |
1060 | * ltt_tracefile_read : read the current event, set the pointer to the next |
6cd62ccf |
1061 | *Input params |
1062 | * t : tracefile |
1063 | *Return value |
963b5f2d |
1064 | * LttEvent * : an event to be processed |
6cd62ccf |
1065 | ****************************************************************************/ |
1066 | |
c02ea99f |
1067 | LttEvent *ltt_tracefile_read(LttTracefile *t, LttEvent *event) |
6cd62ccf |
1068 | { |
963b5f2d |
1069 | int err; |
6cd62ccf |
1070 | |
155a7b0a |
1071 | if(unlikely(t->cur_event_pos == t->buffer + t->block_size)){ |
1072 | if(unlikely(t->which_block == t->block_number)){ |
bdc36259 |
1073 | return NULL; |
1074 | } |
1075 | err = readBlock(t, t->which_block + 1); |
155a7b0a |
1076 | if(unlikely(err))g_error("Can not read tracefile"); |
bdc36259 |
1077 | } |
1078 | |
c02ea99f |
1079 | event->event_id = (int)(*(guint16 *)(t->cur_event_pos)); |
155a7b0a |
1080 | if(unlikely(event->event_id == TRACE_TIME_HEARTBEAT)) |
963b5f2d |
1081 | t->cur_heart_beat_number++; |
6cd62ccf |
1082 | |
40331ba8 |
1083 | t->prev_event_time = t->current_event_time; |
62e55dd6 |
1084 | // t->current_event_time = getEventTime(t); |
6cd62ccf |
1085 | |
c02ea99f |
1086 | event->time_delta = *(guint32 *)(t->cur_event_pos + EVENT_ID_SIZE); |
1087 | event->event_time = t->current_event_time; |
1088 | event->event_cycle_count = t->cur_cycle_count; |
963b5f2d |
1089 | |
c02ea99f |
1090 | event->tracefile = t; |
1091 | event->data = t->cur_event_pos + EVENT_HEADER_SIZE; |
1092 | event->which_block = t->which_block; |
1093 | event->which_event = t->which_event; |
6cd62ccf |
1094 | |
18206708 |
1095 | /* This is a workaround for fast position seek */ |
c02ea99f |
1096 | event->last_event_pos = t->last_event_pos; |
1097 | event->prev_block_end_time = t->prev_block_end_time; |
1098 | event->prev_event_time = t->prev_event_time; |
1099 | event->pre_cycle_count = t->pre_cycle_count; |
1100 | event->count = t->count; |
2dee981d |
1101 | event->overflow_nsec = t->overflow_nsec; |
1102 | |
18206708 |
1103 | /* end of workaround */ |
1104 | |
1105 | |
1106 | |
40331ba8 |
1107 | //update the fields of the current event and go to the next event |
1108 | err = skipEvent(t); |
155a7b0a |
1109 | if(unlikely(err == ERANGE)) g_error("event id is out of range\n"); |
40331ba8 |
1110 | |
c02ea99f |
1111 | return event; |
6cd62ccf |
1112 | } |
1113 | |
1114 | /**************************************************************************** |
1115 | *Function name |
1116 | * readFile : wrap function to read from a file |
1117 | *Input Params |
1118 | * fd : file descriptor |
1119 | * buf : buf to contain the content |
1120 | * size : number of bytes to be read |
1121 | * mesg : message to be printed if some thing goes wrong |
1122 | *return value |
1123 | * 0 : success |
1124 | * EIO : can not read from the file |
1125 | ****************************************************************************/ |
1126 | |
1127 | int readFile(int fd, void * buf, size_t size, char * mesg) |
1128 | { |
8d1e6362 |
1129 | ssize_t nbBytes = read(fd, buf, size); |
1130 | |
1131 | if((size_t)nbBytes != size) { |
1132 | if(nbBytes < 0) { |
1133 | perror("Error in readFile : "); |
1134 | } else { |
1135 | g_warning("%s",mesg); |
1136 | } |
6cd62ccf |
1137 | return EIO; |
1138 | } |
1139 | return 0; |
1140 | } |
1141 | |
507915ee |
1142 | /***************************************************************************** |
1143 | *Function name |
1144 | * skipEvent_pre_read_cycles : go to the next event, |
1145 | * update the necessary fields of the current event |
1146 | * increment the cycle counter, save it at the end. |
1147 | *Input params |
1148 | * t : tracefile |
1149 | *return value |
1150 | * 0 : success |
1151 | * ERANGE : event id is out of range |
1152 | ****************************************************************************/ |
1153 | |
1154 | int skipEvent_pre_read_cycles(LttTracefile * t) |
1155 | { |
1156 | int evId; |
1157 | void * evData; |
1158 | LttEventType * evT; |
1159 | LttField * rootFld; |
1160 | |
1161 | evId = (int)(*(guint16 *)(t->cur_event_pos)); |
1162 | evData = t->cur_event_pos + EVENT_HEADER_SIZE; |
1163 | |
1164 | evT = ltt_trace_eventtype_get(t->trace,(unsigned)evId); |
1165 | |
1166 | if(likely(evT)) rootFld = evT->root_field; |
1167 | else return ERANGE; |
1168 | |
1169 | if(likely(rootFld)){ |
1170 | //event has string/sequence or the last event is not the same event |
1171 | if(likely((evT->latest_block!=t->which_block || evT->latest_event!=t->which_event) |
1172 | && rootFld->field_fixed == 0)){ |
1173 | setFieldsOffset(t, evT, evData, t->trace); |
1174 | } |
1175 | t->cur_event_pos += EVENT_HEADER_SIZE + rootFld->field_size; |
1176 | }else t->cur_event_pos += EVENT_HEADER_SIZE; |
1177 | |
1178 | //evT->latest_block = t->which_block; |
1179 | //evT->latest_event = t->which_event; |
1180 | |
1181 | //the next event is in the next block |
1182 | //if(unlikely(evId == TRACE_BLOCK_END)){ |
1183 | // Specify end of buffer reached. |
1184 | // t->cur_event_pos = t->buffer + t->block_size; |
1185 | //}else{ |
1186 | //g_critical("COUNT : %lu", t->cur_cycle_count); |
1187 | //t->which_event++; |
1188 | // t->current_event_time = getEventTime(t); |
1189 | //} |
1190 | |
1191 | return 0; |
1192 | } |
1193 | |
1194 | |
1195 | |
1196 | |
1197 | /***************************************************************************** |
1198 | *Function name |
1199 | * ltt_tracefile_pre_read_cycles : |
1200 | * read the current event, increment the cycle counter |
1201 | *Input params |
1202 | * t : tracefile |
1203 | *Return value |
1204 | * False : end of bloc reached |
1205 | ****************************************************************************/ |
1206 | |
1207 | gboolean ltt_tracefile_pre_read_cycles(LttTracefile *tf) |
1208 | { |
1209 | int err; |
1210 | //LttEvent event; |
1211 | |
1212 | // if(unlikely(t->cur_event_pos == t->buffer + t->block_size)){ |
1213 | //if(unlikely(t->which_block == t->block_number)){ |
1214 | // return FALSE; |
1215 | //} |
1216 | // return FALSE; // end of bloc reached |
1217 | //err = readBlock(t, t->which_block + 1); |
1218 | //if(unlikely(err))g_error("Can not read tracefile"); |
1219 | //} |
1220 | |
1221 | //event.event_id = (int)(*(guint16 *)(t->cur_event_pos)); |
1222 | //if(unlikely(event.event_id == TRACE_TIME_HEARTBEAT)) |
1223 | // t->cur_heart_beat_number++; |
1224 | |
1225 | //t->prev_event_time = t->current_event_time; |
1226 | // t->current_event_time = getEventTime(t); |
1227 | |
1228 | //event.time_delta = *(guint32 *)(t->cur_event_pos + EVENT_ID_SIZE); |
1229 | //event.event_time = t->current_event_time; |
1230 | //event.event_cycle_count = t->cur_cycle_count; |
1231 | |
1232 | //event.tracefile = t; |
1233 | //event.data = t->cur_event_pos + EVENT_HEADER_SIZE; |
1234 | //event.which_block = t->which_block; |
1235 | //event.which_event = t->which_event; |
1236 | |
1237 | /* This is a workaround for fast position seek */ |
1238 | //event.last_event_pos = t->last_event_pos; |
1239 | //event.prev_block_end_time = t->prev_block_end_time; |
1240 | //event.prev_event_time = t->prev_event_time; |
1241 | //event.pre_cycle_count = t->pre_cycle_count; |
1242 | //event.count = t->count; |
1243 | /* end of workaround */ |
1244 | |
1245 | |
1246 | /* Increment the cycle counter for the bloc */ |
1247 | LttTime time; |
1248 | LttCycleCount cycle_count; // cycle count for the current event |
1249 | LttCycleCount lEventTotalCycle; // Total cycles from start for event |
1250 | LttCycleCount lEventNSec; // Total nsecs from start for event |
1251 | LttTime lTimeOffset; // Time offset in struct LttTime |
1252 | guint16 evId; |
1253 | |
1254 | evId = *(guint16 *)tf->cur_event_pos; |
1255 | |
1256 | // Calculate total time in cycles from start of buffer for this event |
1257 | cycle_count = (LttCycleCount)*(guint32 *)(tf->cur_event_pos + EVENT_ID_SIZE); |
1258 | //g_debug("event cycle count %llu", cycle_count); |
ac849774 |
1259 | // |
1260 | //gint64 delta_count = (gint64)(cycle_count - tf->pre_cycle_count); |
1261 | //LttCycleCount res_delta_count; |
1262 | gboolean comp_count = cycle_count < tf->pre_cycle_count; |
507915ee |
1263 | tf->pre_cycle_count = cycle_count; |
a1062ddd |
1264 | |
ac849774 |
1265 | if(unlikely(comp_count)) { |
1266 | /* Wrapped */ |
1267 | tf->count++; //increment wrap count |
1268 | } |
1269 | |
a1062ddd |
1270 | //if(unlikely(cycle_count < tf->pre_cycle_count)) tf->count++; |
ac849774 |
1271 | //if(unlikely(delta_count < 0)) { |
a1062ddd |
1272 | // tf->count++; //increment wrap count |
1273 | // keep in mind that delta_count is negative here. |
ac849774 |
1274 | // res_delta_count = delta_count + 0x100000000ULL ; |
1275 | //} else |
1276 | // res_delta_count = (LttCycleCount)delta_count; |
a1062ddd |
1277 | |
1278 | //cycle_count += (LttCycleCount)tf->count << 32; |
507915ee |
1279 | |
1280 | //FIXME (MD) |
1281 | // if(tf->cur_heart_beat_number > tf->count) |
1282 | // cycle_count += (tf->cur_heart_beat_number - tf->count) << 32; |
1283 | |
ac849774 |
1284 | //tf->cur_cycle_count = tf->cur_cycle_count + res_delta_count; |
1285 | tf->cur_cycle_count = cycle_count | ((LttCycleCount)tf->count << 32); |
cf25ea22 |
1286 | //g_debug("cur cycle count %llu", tf->cur_cycle_count); |
507915ee |
1287 | |
1288 | |
1289 | |
1290 | |
1291 | if(unlikely(evId == TRACE_BLOCK_START)){ |
cf25ea22 |
1292 | //g_debug("BLOCK START"); |
507915ee |
1293 | }else if(unlikely(evId == TRACE_BLOCK_END)){ |
cf25ea22 |
1294 | //g_debug("BLOCK END"); |
507915ee |
1295 | |
1296 | /* The goal of all this pre reading */ |
1297 | tf->a_block_end->cycle_count = tf->cur_cycle_count; |
cf25ea22 |
1298 | //g_debug("end of block cycle count : %llu", tf->cur_cycle_count); |
39ae3eed |
1299 | |
507915ee |
1300 | return FALSE; |
1301 | } |
1302 | |
1303 | //update the fields of the current event and go to the next event |
1304 | err = skipEvent_pre_read_cycles(tf); |
1305 | if(unlikely(err == ERANGE)) g_error("event id is out of range\n"); |
1306 | |
1307 | |
1308 | return TRUE; |
1309 | } |
1310 | |
6cd62ccf |
1311 | /**************************************************************************** |
1312 | *Function name |
1313 | * readBlock : read a block from the file |
1314 | *Input Params |
1315 | * lttdes : ltt trace file |
1316 | * whichBlock : the block which will be read |
1317 | *return value |
1318 | * 0 : success |
1319 | * EINVAL : lseek fail |
1320 | * EIO : can not read from the file |
1321 | ****************************************************************************/ |
1322 | |
963b5f2d |
1323 | int readBlock(LttTracefile * tf, int whichBlock) |
6cd62ccf |
1324 | { |
1325 | off_t nbBytes; |
cbd41522 |
1326 | guint32 lostSize; |
6cd62ccf |
1327 | |
ac849774 |
1328 | /* same block already opened requested */ |
1329 | if((guint)whichBlock == tf->which_block) return 0; |
1330 | |
155a7b0a |
1331 | if(likely(whichBlock - tf->which_block == 1 && tf->which_block != 0)){ |
963b5f2d |
1332 | tf->prev_block_end_time = tf->a_block_end->time; |
40331ba8 |
1333 | tf->prev_event_time = tf->a_block_end->time; |
6cd62ccf |
1334 | }else{ |
1335 | tf->prev_block_end_time.tv_sec = 0; |
1336 | tf->prev_block_end_time.tv_nsec = 0; |
40331ba8 |
1337 | tf->prev_event_time.tv_sec = 0; |
1338 | tf->prev_event_time.tv_nsec = 0; |
6cd62ccf |
1339 | } |
6cd62ccf |
1340 | |
963b5f2d |
1341 | nbBytes=lseek(tf->fd,(off_t)((whichBlock-1)*tf->block_size), SEEK_SET); |
155a7b0a |
1342 | if(unlikely(nbBytes == -1)) return EINVAL; |
6cd62ccf |
1343 | |
155a7b0a |
1344 | if(unlikely(readFile(tf->fd,tf->buffer,tf->block_size,"Unable to read a block"))) |
963b5f2d |
1345 | return EIO; |
6cd62ccf |
1346 | |
963b5f2d |
1347 | tf->a_block_start=(BlockStart *) (tf->buffer + EVENT_HEADER_SIZE); |
cbd41522 |
1348 | lostSize = *(guint32 *)(tf->buffer + tf->block_size - sizeof(guint32)); |
963b5f2d |
1349 | tf->a_block_end=(BlockEnd *)(tf->buffer + tf->block_size - |
1350 | lostSize + EVENT_HEADER_SIZE); |
e37c1372 |
1351 | tf->last_event_pos = tf->buffer + tf->block_size - lostSize; |
6cd62ccf |
1352 | |
6cd62ccf |
1353 | tf->which_block = whichBlock; |
963b5f2d |
1354 | tf->which_event = 1; |
40331ba8 |
1355 | tf->cur_event_pos = tf->buffer;//the beginning of the block, block start ev |
6cd62ccf |
1356 | tf->cur_heart_beat_number = 0; |
507915ee |
1357 | |
1358 | /* read the whole block to precalculate total of cycles in it */ |
1359 | tf->count = 0; |
1360 | tf->pre_cycle_count = 0; |
ac849774 |
1361 | tf->cur_cycle_count = 0; |
cf25ea22 |
1362 | //g_debug("precalculating cycles begin for block %i", whichBlock); |
507915ee |
1363 | while(likely(ltt_tracefile_pre_read_cycles(tf))); |
39ae3eed |
1364 | /* Rough approximation of cycles per usec to calculate |
1365 | * the real block start and end time. |
1366 | */ |
1367 | getCyclePerNsec(tf); |
1368 | /* we are at end position, make end time more precise */ |
2dee981d |
1369 | /* Start overflow_nsec to a negative value : takes account of the |
1370 | * start of block cycle counter */ |
1371 | tf->overflow_nsec = (-((double)tf->a_block_start->cycle_count) |
1372 | * tf->nsec_per_cycle); |
1373 | /* put back the numbers corresponding to end time */ |
1374 | tf->overflow_nsec += tf->one_overflow_nsec * tf->count; |
1375 | |
39ae3eed |
1376 | tf->a_block_end->time = getEventTime(tf); |
1377 | |
cf25ea22 |
1378 | //g_debug("precalculating cycles end for block %i", whichBlock); |
507915ee |
1379 | |
39ae3eed |
1380 | /* put back pointer at the beginning */ |
ac849774 |
1381 | tf->count = 0; |
1382 | tf->pre_cycle_count = 0; |
1383 | tf->cur_cycle_count = 0; |
507915ee |
1384 | tf->which_event = 1; |
1385 | tf->cur_event_pos = tf->buffer;//the beginning of the block, block start ev |
1386 | tf->cur_heart_beat_number = 0; |
963b5f2d |
1387 | |
39ae3eed |
1388 | /* Make start time more precise */ |
2dee981d |
1389 | /* Start overflow_nsec to a negative value : takes account of the |
1390 | * start of block cycle counter */ |
1391 | tf->overflow_nsec = (-((double)tf->a_block_start->cycle_count) |
1392 | * tf->nsec_per_cycle); |
1393 | |
1394 | |
39ae3eed |
1395 | tf->a_block_start->time = getEventTime(tf); |
1396 | |
1397 | /* recalculate the cycles per nsec, with now more precise start and end time |
1398 | */ |
6cd62ccf |
1399 | getCyclePerNsec(tf); |
2dee981d |
1400 | tf->overflow_nsec = (-((double)tf->a_block_start->cycle_count) |
1401 | * tf->nsec_per_cycle); |
1402 | |
1403 | |
6cd62ccf |
1404 | |
62e55dd6 |
1405 | tf->current_event_time = getEventTime(tf); |
40331ba8 |
1406 | |
6cd62ccf |
1407 | return 0; |
1408 | } |
1409 | |
1410 | /***************************************************************************** |
1411 | *Function name |
1412 | * updateTracefile : reinitialize the info of the block which is already |
1413 | * in the buffer |
1414 | *Input params |
1415 | * tf : tracefile |
1416 | ****************************************************************************/ |
1417 | |
963b5f2d |
1418 | void updateTracefile(LttTracefile * tf) |
6cd62ccf |
1419 | { |
963b5f2d |
1420 | tf->which_event = 1; |
40331ba8 |
1421 | tf->cur_event_pos = tf->buffer; |
62e55dd6 |
1422 | tf->current_event_time = getEventTime(tf); |
6cd62ccf |
1423 | tf->cur_heart_beat_number = 0; |
1424 | |
1425 | tf->prev_event_time.tv_sec = 0; |
1426 | tf->prev_event_time.tv_nsec = 0; |
2dee981d |
1427 | tf->count = 0; |
1428 | |
1429 | tf->overflow_nsec = (-((double)tf->a_block_start->cycle_count) |
1430 | * tf->nsec_per_cycle); |
1431 | |
6cd62ccf |
1432 | } |
1433 | |
1434 | /***************************************************************************** |
1435 | *Function name |
1436 | * skipEvent : go to the next event, update the fields of the current event |
1437 | *Input params |
1438 | * t : tracefile |
1439 | *return value |
1440 | * 0 : success |
6cd62ccf |
1441 | * ERANGE : event id is out of range |
1442 | ****************************************************************************/ |
1443 | |
963b5f2d |
1444 | int skipEvent(LttTracefile * t) |
6cd62ccf |
1445 | { |
8d1e6362 |
1446 | int evId; |
6cd62ccf |
1447 | void * evData; |
963b5f2d |
1448 | LttEventType * evT; |
1449 | LttField * rootFld; |
6cd62ccf |
1450 | |
cbd41522 |
1451 | evId = (int)(*(guint16 *)(t->cur_event_pos)); |
6cd62ccf |
1452 | evData = t->cur_event_pos + EVENT_HEADER_SIZE; |
6cd62ccf |
1453 | |
908f42fa |
1454 | evT = ltt_trace_eventtype_get(t->trace,(unsigned)evId); |
47a166fc |
1455 | |
1d1df11d |
1456 | if(likely(evT)) rootFld = evT->root_field; |
908f42fa |
1457 | else return ERANGE; |
6cd62ccf |
1458 | |
1d1df11d |
1459 | if(likely(rootFld)){ |
908f42fa |
1460 | //event has string/sequence or the last event is not the same event |
1d1df11d |
1461 | if(likely((evT->latest_block!=t->which_block || evT->latest_event!=t->which_event) |
1462 | && rootFld->field_fixed == 0)){ |
908f42fa |
1463 | setFieldsOffset(t, evT, evData, t->trace); |
47a166fc |
1464 | } |
908f42fa |
1465 | t->cur_event_pos += EVENT_HEADER_SIZE + rootFld->field_size; |
1466 | }else t->cur_event_pos += EVENT_HEADER_SIZE; |
1467 | |
1468 | evT->latest_block = t->which_block; |
1469 | evT->latest_event = t->which_event; |
1470 | |
6cd62ccf |
1471 | //the next event is in the next block |
1d1df11d |
1472 | if(unlikely(evId == TRACE_BLOCK_END)){ |
bdc36259 |
1473 | t->cur_event_pos = t->buffer + t->block_size; |
6cd62ccf |
1474 | }else{ |
1475 | t->which_event++; |
62e55dd6 |
1476 | t->current_event_time = getEventTime(t); |
6cd62ccf |
1477 | } |
1478 | |
1479 | return 0; |
1480 | } |
1481 | |
18206708 |
1482 | |
6cd62ccf |
1483 | /***************************************************************************** |
1484 | *Function name |
1485 | * getCyclePerNsec : calculate cycles per nsec for current block |
507915ee |
1486 | * MD: should have tracefile_read the whole block, so we know the |
1487 | * total of cycles in it before being called. |
6cd62ccf |
1488 | *Input Params |
1489 | * t : tracefile |
1490 | ****************************************************************************/ |
1491 | |
963b5f2d |
1492 | void getCyclePerNsec(LttTracefile * t) |
6cd62ccf |
1493 | { |
963b5f2d |
1494 | LttTime lBufTotalTime; /* Total time for this buffer */ |
887208b7 |
1495 | double lBufTotalNSec; /* Total time for this buffer in nsecs */ |
1496 | double lBufTotalCycle;/* Total cycles for this buffer */ |
6cd62ccf |
1497 | |
1498 | /* Calculate the total time for this buffer */ |
308711e5 |
1499 | lBufTotalTime = ltt_time_sub(t->a_block_end->time, t->a_block_start->time); |
6cd62ccf |
1500 | |
1501 | /* Calculate the total cycles for this bufffer */ |
e4eced0f |
1502 | lBufTotalCycle = t->a_block_end->cycle_count; |
1503 | lBufTotalCycle -= t->a_block_start->cycle_count; |
6cd62ccf |
1504 | |
1505 | /* Convert the total time to nsecs */ |
887208b7 |
1506 | lBufTotalNSec = ltt_time_to_double(lBufTotalTime); |
6cd62ccf |
1507 | |
887208b7 |
1508 | t->nsec_per_cycle = (double)lBufTotalNSec / (double)lBufTotalCycle; |
2dee981d |
1509 | /* Pre-multiply one overflow (2^32 cycles) by nsec_per_cycle */ |
1510 | t->one_overflow_nsec = t->nsec_per_cycle * (double)0x100000000ULL; |
1511 | |
887208b7 |
1512 | /* See : http://www.azillionmonkeys.com/qed/adiv.html */ |
1513 | // precalculate the reciprocal, so divisions will be really fast. |
1514 | // 2^32-1 == 0xFFFFFFFFULL |
1515 | //{ |
1516 | // double int_res = lBufTotalCycle/lBufTotalNSec; |
1517 | // t->cycles_per_nsec_reciprocal = |
1518 | // ((0xFFFF+int_res)/int_res); |
1519 | //} |
1520 | |
6cd62ccf |
1521 | } |
1522 | |
1523 | /**************************************************************************** |
1524 | *Function name |
1525 | * getEventTime : obtain the time of an event |
887208b7 |
1526 | * NOTE : this function _really_ is on critical path. |
6cd62ccf |
1527 | *Input params |
1528 | * tf : tracefile |
1529 | *Return value |
963b5f2d |
1530 | * LttTime : the time of the event |
6cd62ccf |
1531 | ****************************************************************************/ |
1532 | |
8959a0c8 |
1533 | static inline LttTime getEventTime(LttTracefile * tf) |
6cd62ccf |
1534 | { |
963b5f2d |
1535 | LttTime time; |
1536 | LttCycleCount cycle_count; // cycle count for the current event |
2dee981d |
1537 | //LttCycleCount lEventTotalCycle; // Total cycles from start for event |
1538 | gint64 lEventNSec; // Total nsecs from start for event |
963b5f2d |
1539 | LttTime lTimeOffset; // Time offset in struct LttTime |
cbd41522 |
1540 | guint16 evId; |
e4eced0f |
1541 | |
cbd41522 |
1542 | evId = *(guint16 *)tf->cur_event_pos; |
7d65dfad |
1543 | //if(unlikely(evId == TRACE_BLOCK_START)){ |
1544 | // tf->count = 0; |
1545 | // tf->pre_cycle_count = 0; |
1546 | // tf->cur_cycle_count = tf->a_block_start->cycle_count; |
1547 | // return tf->a_block_start->time; |
1548 | //}//else if(unlikely(evId == TRACE_BLOCK_END)){ |
1549 | //tf->count = 0; |
1550 | //tf->pre_cycle_count = 0; |
1551 | //tf->cur_cycle_count = tf->a_block_end->cycle_count; |
1552 | //return tf->a_block_end->time; |
1553 | //} |
1554 | |
1555 | // Calculate total time in cycles from start of buffer for this event |
1556 | cycle_count = (LttCycleCount)*(guint32 *)(tf->cur_event_pos + EVENT_ID_SIZE); |
1557 | //g_debug("event cycle count %llu", cycle_count); |
ac849774 |
1558 | // |
1559 | //gint64 delta_count = (gint64)(cycle_count - tf->pre_cycle_count); |
1560 | //LttCycleCount res_delta_count; |
1561 | gboolean comp_count = cycle_count < tf->pre_cycle_count; |
7d65dfad |
1562 | tf->pre_cycle_count = cycle_count; |
1563 | |
ac849774 |
1564 | if(unlikely(comp_count)) { |
1565 | /* Wrapped */ |
2dee981d |
1566 | tf->overflow_nsec += tf->one_overflow_nsec; |
1567 | tf->count++; //increment overflow count |
ac849774 |
1568 | } |
1569 | |
7d65dfad |
1570 | //if(unlikely(cycle_count < tf->pre_cycle_count)) tf->count++; |
ac849774 |
1571 | //if(unlikely(delta_count < 0)) { |
7d65dfad |
1572 | // tf->count++; //increment wrap count |
1573 | // keep in mind that delta_count is negative here. |
ac849774 |
1574 | // res_delta_count = delta_count + 0x100000000ULL ; |
1575 | //} else |
1576 | // res_delta_count = (LttCycleCount)delta_count; |
7d65dfad |
1577 | |
1578 | //cycle_count += (LttCycleCount)tf->count << 32; |
40331ba8 |
1579 | |
7d65dfad |
1580 | //FIXME (MD) |
1581 | // if(tf->cur_heart_beat_number > tf->count) |
1582 | // cycle_count += (tf->cur_heart_beat_number - tf->count) << 32; |
1583 | |
ac849774 |
1584 | //tf->cur_cycle_count = tf->cur_cycle_count + res_delta_count; |
2dee981d |
1585 | // |
1586 | // |
cf25ea22 |
1587 | // Total cycle counter of the event. |
2dee981d |
1588 | //tf->cur_cycle_count = cycle_count | ((LttCycleCount)tf->count << 32); |
7d65dfad |
1589 | |
cf25ea22 |
1590 | //g_debug("cur cycle count %llu", tf->cur_cycle_count); |
ac849774 |
1591 | |
cf25ea22 |
1592 | // Total number of cycles since the beginning of the block |
2dee981d |
1593 | //lEventTotalCycle = tf->cur_cycle_count |
1594 | // - tf->a_block_start->cycle_count; |
7d65dfad |
1595 | |
1596 | |
1597 | |
1598 | #if 0 |
e4eced0f |
1599 | // Calculate total time in cycles from start of buffer for this event |
cbd41522 |
1600 | cycle_count = (LttCycleCount)*(guint32 *)(tf->cur_event_pos + EVENT_ID_SIZE); |
e4eced0f |
1601 | |
1d1df11d |
1602 | if(unlikely(cycle_count < tf->pre_cycle_count)) tf->count++; |
dd691a2e |
1603 | tf->pre_cycle_count = cycle_count; |
8959a0c8 |
1604 | cycle_count += (LttCycleCount)tf->count << 32; |
e4eced0f |
1605 | |
507915ee |
1606 | //FIXME (MD) |
e9b34357 |
1607 | // if(tf->cur_heart_beat_number > tf->count) |
507915ee |
1608 | // cycle_count += (tf->cur_heart_beat_number - tf->count) << 32; |
e4eced0f |
1609 | |
1610 | tf->cur_cycle_count = cycle_count; |
1611 | |
1612 | lEventTotalCycle = cycle_count; |
1613 | lEventTotalCycle -= tf->a_block_start->cycle_count; |
7d65dfad |
1614 | #endif //0 |
963b5f2d |
1615 | // Convert it to nsecs |
2dee981d |
1616 | //lEventNSec = (double)lEventTotalCycle * (double)tf->nsec_per_cycle; |
887208b7 |
1617 | //lEventNSec = (tf->cycles_per_nsec_reciprocal * lEventTotalCycle) >> 16; |
1618 | |
963b5f2d |
1619 | // Determine offset in struct LttTime |
2dee981d |
1620 | //lTimeOffset = ltt_time_from_double(lEventNSec); |
1621 | // |
1622 | // We do not substract block start cycle count here, it has already been done |
1623 | // on the overflow_nsec |
1624 | // The result should never be negative, because the cycle count of |
1625 | // the event following the block start should be >= the previous one. |
1626 | lEventNSec = (gint64)((double)cycle_count * tf->nsec_per_cycle) |
1627 | +tf->overflow_nsec; |
1628 | //g_assert(lEventNSec >= 0); |
1629 | lTimeOffset = ltt_time_from_uint64(lEventNSec); |
1630 | |
308711e5 |
1631 | time = ltt_time_add(tf->a_block_start->time, lTimeOffset); |
e4eced0f |
1632 | |
6cd62ccf |
1633 | return time; |
1634 | } |
1635 | |
1636 | /***************************************************************************** |
1637 | *Function name |
1638 | * setFieldsOffset : set offset of the fields |
1639 | *Input params |
1640 | * tracefile : opened trace file |
1641 | * evT : the event type |
1642 | * evD : event data, it may be NULL |
1643 | ****************************************************************************/ |
1644 | |
40331ba8 |
1645 | void setFieldsOffset(LttTracefile *tf,LttEventType *evT,void *evD,LttTrace* t) |
6cd62ccf |
1646 | { |
963b5f2d |
1647 | LttField * rootFld = evT->root_field; |
6cd62ccf |
1648 | // rootFld->base_address = evD; |
1649 | |
1d1df11d |
1650 | if(likely(rootFld)) |
8710c6c7 |
1651 | rootFld->field_size = getFieldtypeSize(tf, evT, 0,0,rootFld, evD,t); |
6cd62ccf |
1652 | } |
1653 | |
1654 | /***************************************************************************** |
1655 | *Function name |
1656 | * getFieldtypeSize: get the size of the field type (primitive type) |
1657 | *Input params |
1658 | * tracefile : opened trace file |
1659 | * evT : event type |
1660 | * offsetRoot : offset from the root |
1661 | * offsetParent : offset from the parrent |
1662 | * fld : field |
1663 | * evD : event data, it may be NULL |
1664 | *Return value |
1665 | * int : size of the field |
1666 | ****************************************************************************/ |
1667 | |
21182d4a |
1668 | static inline gint getFieldtypeSize(LttTracefile * t, |
1669 | LttEventType * evT, gint offsetRoot, |
1670 | gint offsetParent, LttField * fld, void *evD, LttTrace *trace) |
6cd62ccf |
1671 | { |
21182d4a |
1672 | gint size, size1, element_number, i, offset1, offset2; |
963b5f2d |
1673 | LttType * type = fld->field_type; |
6cd62ccf |
1674 | |
21182d4a |
1675 | if(unlikely(t && evT->latest_block==t->which_block && |
1676 | evT->latest_event==t->which_event)){ |
1677 | size = fld->field_size; |
1678 | goto end_getFieldtypeSize; |
1679 | } |
1680 | |
60297a6c |
1681 | /* This likely has been tested with gcov : half of them.. */ |
21182d4a |
1682 | if(unlikely(fld->field_fixed == 1)){ |
60297a6c |
1683 | /* tested : none */ |
1684 | if(unlikely(fld == evT->root_field)) { |
21182d4a |
1685 | size = fld->field_size; |
1686 | goto end_getFieldtypeSize; |
1687 | } |
963b5f2d |
1688 | } |
6cd62ccf |
1689 | |
60297a6c |
1690 | /* From gcov profiling : half string, half struct, can we gain something from |
1691 | * that ? (Mathieu) */ |
cf74a6f1 |
1692 | switch(type->type_class) { |
1693 | case LTT_ARRAY: |
1694 | element_number = (int) type->element_number; |
1695 | if(fld->field_fixed == -1){ |
1696 | size = getFieldtypeSize(t, evT, offsetRoot, |
1697 | 0,fld->child[0], NULL, trace); |
1698 | if(size == 0){ //has string or sequence |
1699 | fld->field_fixed = 0; |
1700 | }else{ |
1701 | fld->field_fixed = 1; |
1702 | size *= element_number; |
1703 | } |
1704 | }else if(fld->field_fixed == 0){// has string or sequence |
1705 | size = 0; |
1706 | for(i=0;i<element_number;i++){ |
1707 | size += getFieldtypeSize(t, evT, offsetRoot+size,size, |
1708 | fld->child[0], evD+size, trace); |
1709 | } |
1710 | }else size = fld->field_size; |
1711 | break; |
1712 | |
1713 | case LTT_SEQUENCE: |
1714 | size1 = (int) ltt_type_size(trace, type); |
1715 | if(fld->field_fixed == -1){ |
1716 | fld->sequ_number_size = size1; |
1717 | fld->field_fixed = 0; |
1718 | size = getFieldtypeSize(t, evT, offsetRoot, |
1719 | 0,fld->child[0], NULL, trace); |
1720 | fld->element_size = size; |
1721 | }else{//0: sequence |
1722 | element_number = getIntNumber(size1,evD); |
1723 | type->element_number = element_number; |
1724 | if(fld->element_size > 0){ |
1725 | size = element_number * fld->element_size; |
1726 | }else{//sequence has string or sequence |
1727 | size = 0; |
1728 | for(i=0;i<element_number;i++){ |
1729 | size += getFieldtypeSize(t, evT, offsetRoot+size+size1,size+size1, |
1730 | fld->child[0], evD+size+size1, trace); |
1731 | } |
1732 | } |
1733 | size += size1; |
1734 | } |
1735 | break; |
1736 | |
1737 | case LTT_STRING: |
1738 | size = 0; |
1739 | if(fld->field_fixed == -1){ |
1740 | fld->field_fixed = 0; |
1741 | }else{//0: string |
6e8c19d4 |
1742 | /* Hope my implementation is faster than strlen (Mathieu) */ |
1743 | char *ptr=(char*)evD; |
3b15da3e |
1744 | size = 1; |
60297a6c |
1745 | /* from gcov : many many strings are empty, make it the common case. */ |
1746 | while(unlikely(*ptr != '\0')) { size++; ptr++; } |
3b15da3e |
1747 | //size = ptr - (char*)evD + 1; //include end : '\0' |
cf74a6f1 |
1748 | } |
1749 | break; |
1750 | |
1751 | case LTT_STRUCT: |
1752 | element_number = (int) type->element_number; |
1753 | size = 0; |
60297a6c |
1754 | /* tested with gcov */ |
1755 | if(unlikely(fld->field_fixed == -1)){ |
cf74a6f1 |
1756 | offset1 = offsetRoot; |
1757 | offset2 = 0; |
1758 | for(i=0;i<element_number;i++){ |
1759 | size1=getFieldtypeSize(t, evT,offset1,offset2, |
1760 | fld->child[i], NULL, trace); |
60297a6c |
1761 | if(likely(size1 > 0 && size >= 0)){ |
cf74a6f1 |
1762 | size += size1; |
60297a6c |
1763 | if(likely(offset1 >= 0)) offset1 += size1; |
cf74a6f1 |
1764 | offset2 += size1; |
1765 | }else{ |
1766 | size = -1; |
1767 | offset1 = -1; |
1768 | offset2 = -1; |
1769 | } |
1770 | } |
60297a6c |
1771 | if(unlikely(size == -1)){ |
cf74a6f1 |
1772 | fld->field_fixed = 0; |
1773 | size = 0; |
1774 | }else fld->field_fixed = 1; |
60297a6c |
1775 | }else if(likely(fld->field_fixed == 0)){ |
cf74a6f1 |
1776 | offset1 = offsetRoot; |
1777 | offset2 = 0; |
dc1cad90 |
1778 | for(i=0;unlikely(i<element_number);i++){ |
cf74a6f1 |
1779 | size=getFieldtypeSize(t,evT,offset1,offset2, |
1780 | fld->child[i],evD+offset2, trace); |
1781 | offset1 += size; |
1782 | offset2 += size; |
1783 | } |
1784 | size = offset2; |
1785 | }else size = fld->field_size; |
1786 | break; |
1787 | |
1788 | default: |
60297a6c |
1789 | if(unlikely(fld->field_fixed == -1)){ |
cf74a6f1 |
1790 | size = (int) ltt_type_size(trace, type); |
1791 | fld->field_fixed = 1; |
1792 | }else size = fld->field_size; |
1793 | break; |
1794 | } |
1795 | |
6cd62ccf |
1796 | fld->offset_root = offsetRoot; |
1797 | fld->offset_parent = offsetParent; |
21182d4a |
1798 | if(unlikely(!evD)){ |
6cd62ccf |
1799 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
1800 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
1801 | } |
1802 | fld->field_size = size; |
1803 | |
21182d4a |
1804 | end_getFieldtypeSize: |
1805 | |
6cd62ccf |
1806 | return size; |
1807 | } |
1808 | |
6cd62ccf |
1809 | |
1810 | /***************************************************************************** |
1811 | *Function name |
1812 | * getIntNumber : get an integer number |
1813 | *Input params |
1814 | * size : the size of the integer |
1815 | * evD : the event data |
1816 | *Return value |
cf74a6f1 |
1817 | * gint64 : a 64 bits integer |
6cd62ccf |
1818 | ****************************************************************************/ |
1819 | |
cf74a6f1 |
1820 | gint64 getIntNumber(int size, void *evD) |
6cd62ccf |
1821 | { |
cbd41522 |
1822 | gint64 i; |
cf74a6f1 |
1823 | |
1824 | switch(size) { |
1825 | case 1: i = *(gint8 *)evD; break; |
1826 | case 2: i = *(gint16 *)evD; break; |
1827 | case 4: i = *(gint32 *)evD; break; |
1828 | case 8: i = *(gint64 *)evD; break; |
1829 | default: i = *(gint64 *)evD; |
1830 | g_critical("getIntNumber : integer size %d unknown", size); |
1831 | break; |
1832 | } |
1833 | |
1834 | #if 0 |
cbd41522 |
1835 | if(size == 1) i = *(gint8 *)evD; |
1836 | else if(size == 2) i = *(gint16 *)evD; |
1837 | else if(size == 4) i = *(gint32 *)evD; |
1838 | else if(size == 8) i = *(gint64 *)evD; |
cf74a6f1 |
1839 | #endif //0 |
1840 | |
1841 | return (gint64)i; |
6cd62ccf |
1842 | } |
1843 | |
1844 | /***************************************************************************** |
1845 | *Function name |
1846 | * getDataEndianType : get the data type size and endian type of the local |
1847 | * machine |
1848 | *Input params |
1849 | * size : size of data type |
1850 | * endian : endian type, little or big |
1851 | ****************************************************************************/ |
1852 | |
963b5f2d |
1853 | void getDataEndianType(LttArchSize * size, LttArchEndian * endian) |
6cd62ccf |
1854 | { |
1855 | int i = 1; |
1856 | char c = (char) i; |
1857 | int sizeInt=sizeof(int), sizeLong=sizeof(long), sizePointer=sizeof(void *); |
1858 | |
1859 | if(c == 1) *endian = LTT_LITTLE_ENDIAN; |
1860 | else *endian = LTT_BIG_ENDIAN; |
1861 | |
1862 | if(sizeInt == 2 && sizeLong == 4 && sizePointer == 4) |
1863 | *size = LTT_LP32; |
1864 | else if(sizeInt == 4 && sizeLong == 4 && sizePointer == 4) |
1865 | *size = LTT_ILP32; |
1866 | else if(sizeInt == 4 && sizeLong == 8 && sizePointer == 8) |
1867 | *size = LTT_LP64; |
1868 | else if(sizeInt == 8 && sizeLong == 8 && sizePointer == 8) |
1869 | *size = LTT_ILP64; |
1870 | else *size = LTT_UNKNOWN; |
1871 | } |
1872 | |
a5dcde2f |
1873 | /* get the node name of the system */ |
1874 | |
1875 | char * ltt_trace_system_description_node_name (LttSystemDescription * s) |
1876 | { |
1877 | return s->node_name; |
1878 | } |
1879 | |
1880 | |
1881 | /* get the domain name of the system */ |
1882 | |
1883 | char * ltt_trace_system_description_domain_name (LttSystemDescription * s) |
1884 | { |
1885 | return s->domain_name; |
1886 | } |
1887 | |
1888 | |
1889 | /* get the description of the system */ |
1890 | |
1891 | char * ltt_trace_system_description_description (LttSystemDescription * s) |
1892 | { |
1893 | return s->description; |
1894 | } |
1895 | |
1896 | |
1897 | /* get the start time of the trace */ |
1898 | |
1899 | LttTime ltt_trace_system_description_trace_start_time(LttSystemDescription *s) |
1900 | { |
1901 | return s->trace_start; |
1902 | } |
1903 | |
18206708 |
1904 | |
1905 | LttTracefile *ltt_tracefile_new() |
1906 | { |
1907 | return g_new(LttTracefile, 1); |
1908 | } |
1909 | |
1910 | void ltt_tracefile_destroy(LttTracefile *tf) |
1911 | { |
1912 | g_free(tf); |
1913 | } |
1914 | |
1915 | void ltt_tracefile_copy(LttTracefile *dest, const LttTracefile *src) |
1916 | { |
1917 | *dest = *src; |
1918 | } |
1919 | |