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> |
cdf90f40 |
28 | #include <glib.h> |
6cd62ccf |
29 | |
ef35d837 |
30 | // For realpath |
31 | #include <limits.h> |
32 | #include <stdlib.h> |
33 | |
34 | |
6cd62ccf |
35 | #include "parser.h" |
a5dcde2f |
36 | #include <ltt/ltt.h> |
37 | #include "ltt-private.h" |
963b5f2d |
38 | #include <ltt/trace.h> |
a5dcde2f |
39 | #include <ltt/facility.h> |
c02ea99f |
40 | #include <ltt/event.h> |
8d1e6362 |
41 | #include <ltt/type.h> |
1a2ceb63 |
42 | #include <ltt/ltt-types.h> |
6cd62ccf |
43 | |
86005ded |
44 | #ifndef g_open |
45 | #define g_open open |
46 | #endif |
47 | |
48 | |
963b5f2d |
49 | #define DIR_NAME_SIZE 256 |
51b5991e |
50 | #define __UNUSED__ __attribute__((__unused__)) |
6cd62ccf |
51 | |
a1062ddd |
52 | #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format) |
53 | #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format) |
54 | |
45e14832 |
55 | #define g_close close |
8959a0c8 |
56 | |
57 | /* obtain the time of an event */ |
58 | |
59 | static inline LttTime getEventTime(LttTracefile * tf); |
60 | |
61 | |
6cd62ccf |
62 | /* set the offset of the fields belonging to the event, |
63 | need the information of the archecture */ |
40331ba8 |
64 | void setFieldsOffset(LttTracefile *tf,LttEventType *evT,void *evD,LttTrace *t); |
6cd62ccf |
65 | |
66 | /* get the size of the field type according to the archtecture's |
67 | size and endian type(info of the archecture) */ |
21182d4a |
68 | static inline gint getFieldtypeSize(LttTracefile * tf, |
69 | LttEventType * evT, gint offsetRoot, |
70 | gint offsetParent, LttField *fld, void *evD, LttTrace* t); |
6cd62ccf |
71 | |
72 | /* read a fixed size or a block information from the file (fd) */ |
45e14832 |
73 | int readFile(int fd, void * buf, size_t size, gchar * mesg); |
963b5f2d |
74 | int readBlock(LttTracefile * tf, int whichBlock); |
6cd62ccf |
75 | |
76 | /* calculate cycles per nsec for current block */ |
963b5f2d |
77 | void getCyclePerNsec(LttTracefile * t); |
6cd62ccf |
78 | |
79 | /* reinitialize the info of the block which is already in the buffer */ |
963b5f2d |
80 | void updateTracefile(LttTracefile * tf); |
6cd62ccf |
81 | |
82 | /* go to the next event */ |
963b5f2d |
83 | int skipEvent(LttTracefile * t); |
6cd62ccf |
84 | |
6cd62ccf |
85 | |
43da6a59 |
86 | /* Functions to parse system.xml file (using glib xml parser) */ |
51b5991e |
87 | static void parser_start_element (GMarkupParseContext __UNUSED__ *context, |
43da6a59 |
88 | const gchar *element_name, |
89 | const gchar **attribute_names, |
90 | const gchar **attribute_values, |
91 | gpointer user_data, |
92 | GError **error) |
93 | { |
94 | int i=0; |
95 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
96 | if(strcmp("system", element_name)){ |
2a74fbf4 |
97 | *error = g_error_new(G_MARKUP_ERROR, |
98 | G_LOG_LEVEL_WARNING, |
99 | "This is not system.xml file"); |
100 | return; |
43da6a59 |
101 | } |
102 | |
103 | while(attribute_names[i]){ |
104 | if(strcmp("node_name", attribute_names[i])==0){ |
105 | des->node_name = g_strdup(attribute_values[i]); |
106 | }else if(strcmp("domainname", attribute_names[i])==0){ |
107 | des->domain_name = g_strdup(attribute_values[i]); |
108 | }else if(strcmp("cpu", attribute_names[i])==0){ |
109 | des->nb_cpu = atoi(attribute_values[i]); |
110 | }else if(strcmp("arch_size", attribute_names[i])==0){ |
111 | if(strcmp(attribute_values[i],"LP32") == 0) des->size = LTT_LP32; |
112 | else if(strcmp(attribute_values[i],"ILP32") == 0) des->size = LTT_ILP32; |
113 | else if(strcmp(attribute_values[i],"LP64") == 0) des->size = LTT_LP64; |
114 | else if(strcmp(attribute_values[i],"ILP64") == 0) des->size = LTT_ILP64; |
115 | else if(strcmp(attribute_values[i],"UNKNOWN") == 0) des->size = LTT_UNKNOWN; |
116 | }else if(strcmp("endian", attribute_names[i])==0){ |
117 | if(strcmp(attribute_values[i],"LITTLE_ENDIAN") == 0) |
118 | des->endian = LTT_LITTLE_ENDIAN; |
119 | else if(strcmp(attribute_values[i],"BIG_ENDIAN") == 0) |
120 | des->endian = LTT_BIG_ENDIAN; |
121 | }else if(strcmp("kernel_name", attribute_names[i])==0){ |
122 | des->kernel_name = g_strdup(attribute_values[i]); |
123 | }else if(strcmp("kernel_release", attribute_names[i])==0){ |
124 | des->kernel_release = g_strdup(attribute_values[i]); |
125 | }else if(strcmp("kernel_version", attribute_names[i])==0){ |
126 | des->kernel_version = g_strdup(attribute_values[i]); |
127 | }else if(strcmp("machine", attribute_names[i])==0){ |
128 | des->machine = g_strdup(attribute_values[i]); |
129 | }else if(strcmp("processor", attribute_names[i])==0){ |
130 | des->processor = g_strdup(attribute_values[i]); |
131 | }else if(strcmp("hardware_platform", attribute_names[i])==0){ |
132 | des->hardware_platform = g_strdup(attribute_values[i]); |
133 | }else if(strcmp("operating_system", attribute_names[i])==0){ |
134 | des->operating_system = g_strdup(attribute_values[i]); |
135 | }else if(strcmp("ltt_major_version", attribute_names[i])==0){ |
136 | des->ltt_major_version = atoi(attribute_values[i]); |
137 | }else if(strcmp("ltt_minor_version", attribute_names[i])==0){ |
138 | des->ltt_minor_version = atoi(attribute_values[i]); |
139 | }else if(strcmp("ltt_block_size", attribute_names[i])==0){ |
140 | des->ltt_block_size = atoi(attribute_values[i]); |
141 | }else{ |
2a74fbf4 |
142 | *error = g_error_new(G_MARKUP_ERROR, |
143 | G_LOG_LEVEL_WARNING, |
144 | "Not a valid attribute"); |
145 | return; |
43da6a59 |
146 | } |
147 | i++; |
148 | } |
149 | } |
150 | |
51b5991e |
151 | static void parser_characters (GMarkupParseContext __UNUSED__ *context, |
43da6a59 |
152 | const gchar *text, |
51b5991e |
153 | gsize __UNUSED__ text_len, |
43da6a59 |
154 | gpointer user_data, |
51b5991e |
155 | GError __UNUSED__ **error) |
43da6a59 |
156 | { |
157 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
158 | des->description = g_strdup(text); |
159 | } |
160 | |
161 | |
6cd62ccf |
162 | /***************************************************************************** |
163 | *Function name |
963b5f2d |
164 | * ltt_tracefile_open : open a trace file, construct a LttTracefile |
6cd62ccf |
165 | *Input params |
963b5f2d |
166 | * t : the trace containing the tracefile |
167 | * fileName : path name of the trace file |
6cd62ccf |
168 | *Return value |
963b5f2d |
169 | * : a pointer to a tracefile |
6cd62ccf |
170 | ****************************************************************************/ |
171 | |
45e14832 |
172 | LttTracefile* ltt_tracefile_open(LttTrace * t, gchar * fileName) |
6cd62ccf |
173 | { |
963b5f2d |
174 | LttTracefile * tf; |
175 | struct stat lTDFStat; /* Trace data file status */ |
6cd62ccf |
176 | |
963b5f2d |
177 | tf = g_new(LttTracefile, 1); |
6cd62ccf |
178 | |
179 | //open the file |
963b5f2d |
180 | tf->name = g_strdup(fileName); |
181 | tf->trace = t; |
45e14832 |
182 | tf->fd = g_open(fileName, O_RDONLY, 0); |
6cd62ccf |
183 | if(tf->fd < 0){ |
2a74fbf4 |
184 | g_warning("Unable to open input data file %s\n", fileName); |
185 | g_free(tf->name); |
186 | g_free(tf); |
187 | return NULL; |
6cd62ccf |
188 | } |
189 | |
190 | // Get the file's status |
191 | if(fstat(tf->fd, &lTDFStat) < 0){ |
2a74fbf4 |
192 | g_warning("Unable to get the status of the input data file %s\n", fileName); |
193 | g_free(tf->name); |
45e14832 |
194 | g_close(tf->fd); |
2a74fbf4 |
195 | g_free(tf); |
196 | return NULL; |
6cd62ccf |
197 | } |
198 | |
199 | // Is the file large enough to contain a trace |
8d1e6362 |
200 | if(lTDFStat.st_size < (off_t)(sizeof(BlockStart) + EVENT_HEADER_SIZE)){ |
8710c6c7 |
201 | g_print("The input data file %s does not contain a trace\n", fileName); |
663bd9ff |
202 | g_free(tf->name); |
45e14832 |
203 | g_close(tf->fd); |
663bd9ff |
204 | g_free(tf); |
8710c6c7 |
205 | return NULL; |
6cd62ccf |
206 | } |
207 | |
208 | //store the size of the file |
209 | tf->file_size = lTDFStat.st_size; |
963b5f2d |
210 | tf->block_size = t->system_description->ltt_block_size; |
211 | tf->block_number = tf->file_size / tf->block_size; |
212 | tf->which_block = 0; |
6cd62ccf |
213 | |
214 | //allocate memory to contain the info of a block |
45e14832 |
215 | tf->buffer = (void *) g_new(gchar, t->system_description->ltt_block_size); |
6cd62ccf |
216 | |
963b5f2d |
217 | //read the first block |
218 | if(readBlock(tf,1)) exit(1); |
6cd62ccf |
219 | |
220 | return tf; |
221 | } |
222 | |
6cd62ccf |
223 | |
224 | /***************************************************************************** |
963b5f2d |
225 | *Open control and per cpu tracefiles |
6cd62ccf |
226 | ****************************************************************************/ |
227 | |
45e14832 |
228 | void ltt_tracefile_open_cpu(LttTrace *t, gchar * tracefile_name) |
6cd62ccf |
229 | { |
963b5f2d |
230 | LttTracefile * tf; |
231 | tf = ltt_tracefile_open(t,tracefile_name); |
4a6c8e36 |
232 | if(!tf) return; |
963b5f2d |
233 | t->per_cpu_tracefile_number++; |
234 | g_ptr_array_add(t->per_cpu_tracefiles, tf); |
6cd62ccf |
235 | } |
236 | |
45e14832 |
237 | gint ltt_tracefile_open_control(LttTrace *t, gchar * control_name) |
6cd62ccf |
238 | { |
963b5f2d |
239 | LttTracefile * tf; |
c02ea99f |
240 | LttEvent ev; |
963b5f2d |
241 | LttFacility * f; |
963b5f2d |
242 | void * pos; |
243 | FacilityLoad fLoad; |
8d1e6362 |
244 | unsigned int i; |
963b5f2d |
245 | |
246 | tf = ltt_tracefile_open(t,control_name); |
2a74fbf4 |
247 | if(!tf) { |
248 | g_warning("ltt_tracefile_open_control : bad file descriptor"); |
249 | return -1; |
250 | } |
963b5f2d |
251 | t->control_tracefile_number++; |
252 | g_ptr_array_add(t->control_tracefiles,tf); |
253 | |
254 | //parse facilities tracefile to get base_id |
542ceddd |
255 | if(strcmp(&control_name[strlen(control_name)-10],"facilities") ==0){ |
963b5f2d |
256 | while(1){ |
c02ea99f |
257 | if(!ltt_tracefile_read(tf,&ev)) return 0; // end of file |
40331ba8 |
258 | |
c02ea99f |
259 | if(ev.event_id == TRACE_FACILITY_LOAD){ |
260 | pos = ev.data; |
45e14832 |
261 | fLoad.name = (gchar*)pos; |
47a166fc |
262 | fLoad.checksum = *(LttChecksum*)(pos + strlen(fLoad.name)); |
cbd41522 |
263 | fLoad.base_code = *(guint32 *)(pos + strlen(fLoad.name) + sizeof(LttChecksum)); |
963b5f2d |
264 | |
265 | for(i=0;i<t->facility_number;i++){ |
266 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
267 | if(strcmp(f->name,fLoad.name)==0 && fLoad.checksum==f->checksum){ |
268 | f->base_id = fLoad.base_code; |
269 | break; |
270 | } |
271 | } |
2a74fbf4 |
272 | if(i==t->facility_number) { |
8d1e6362 |
273 | g_warning("Facility: %s, checksum: %u is not found", |
274 | fLoad.name,(unsigned int)fLoad.checksum); |
2a74fbf4 |
275 | return -1; |
276 | } |
c02ea99f |
277 | }else if(ev.event_id == TRACE_BLOCK_START){ |
40331ba8 |
278 | continue; |
c02ea99f |
279 | }else if(ev.event_id == TRACE_BLOCK_END){ |
40331ba8 |
280 | break; |
2a74fbf4 |
281 | }else { |
8d1e6362 |
282 | g_warning("Not valid facilities trace file"); |
2a74fbf4 |
283 | return -1; |
284 | } |
963b5f2d |
285 | } |
286 | } |
2a74fbf4 |
287 | return 0; |
6cd62ccf |
288 | } |
289 | |
290 | /***************************************************************************** |
291 | *Function name |
963b5f2d |
292 | * ltt_tracefile_close: close a trace file, |
6cd62ccf |
293 | *Input params |
963b5f2d |
294 | * t : tracefile which will be closed |
6cd62ccf |
295 | ****************************************************************************/ |
296 | |
963b5f2d |
297 | void ltt_tracefile_close(LttTracefile *t) |
6cd62ccf |
298 | { |
963b5f2d |
299 | g_free(t->name); |
300 | g_free(t->buffer); |
663bd9ff |
301 | close(t->fd); |
963b5f2d |
302 | g_free(t); |
303 | } |
6cd62ccf |
304 | |
6cd62ccf |
305 | |
963b5f2d |
306 | /***************************************************************************** |
307 | *Get system information |
308 | ****************************************************************************/ |
45e14832 |
309 | gint getSystemInfo(LttSystemDescription* des, gchar * pathname) |
963b5f2d |
310 | { |
45e14832 |
311 | int fd; |
312 | GIOChannel *iochan; |
313 | gchar *buf = NULL; |
314 | gsize length; |
43da6a59 |
315 | |
316 | GMarkupParseContext * context; |
2a74fbf4 |
317 | GError * error = NULL; |
43da6a59 |
318 | GMarkupParser markup_parser = |
319 | { |
320 | parser_start_element, |
8d1e6362 |
321 | NULL, |
43da6a59 |
322 | parser_characters, |
323 | NULL, /* passthrough */ |
324 | NULL /* error */ |
325 | }; |
963b5f2d |
326 | |
45e14832 |
327 | fd = g_open(pathname, O_RDONLY, 0); |
328 | if(fd == -1){ |
2a74fbf4 |
329 | g_warning("Can not open file : %s\n", pathname); |
330 | return -1; |
6cd62ccf |
331 | } |
963b5f2d |
332 | |
45e14832 |
333 | iochan = g_io_channel_unix_new(fd); |
334 | |
43da6a59 |
335 | context = g_markup_parse_context_new(&markup_parser, 0, des,NULL); |
6cd62ccf |
336 | |
45e14832 |
337 | //while(fgets(buf,DIR_NAME_SIZE, fp) != NULL){ |
338 | while(g_io_channel_read_line(iochan, &buf, &length, NULL, &error) |
339 | != G_IO_STATUS_EOF) { |
340 | |
341 | if(error != NULL) { |
342 | g_warning("Can not read xml file: \n%s\n", error->message); |
343 | g_error_free(error); |
344 | } |
345 | if(!g_markup_parse_context_parse(context, buf, length, &error)){ |
2a74fbf4 |
346 | if(error != NULL) { |
347 | g_warning("Can not parse xml file: \n%s\n", error->message); |
348 | g_error_free(error); |
349 | } |
350 | g_markup_parse_context_free(context); |
45e14832 |
351 | |
352 | g_io_channel_shutdown(iochan, FALSE, &error); /* No flush */ |
353 | if(error != NULL) { |
354 | g_warning("Can not close file: \n%s\n", error->message); |
355 | g_error_free(error); |
356 | } |
357 | |
358 | close(fd); |
2a74fbf4 |
359 | return -1; |
43da6a59 |
360 | } |
963b5f2d |
361 | } |
2a74fbf4 |
362 | g_markup_parse_context_free(context); |
45e14832 |
363 | |
364 | g_io_channel_shutdown(iochan, FALSE, &error); /* No flush */ |
365 | if(error != NULL) { |
366 | g_warning("Can not close file: \n%s\n", error->message); |
367 | g_error_free(error); |
368 | } |
369 | |
370 | g_close(fd); |
371 | |
372 | g_free(buf); |
2a74fbf4 |
373 | return 0; |
6cd62ccf |
374 | } |
375 | |
376 | /***************************************************************************** |
963b5f2d |
377 | *The following functions get facility/tracefile information |
6cd62ccf |
378 | ****************************************************************************/ |
379 | |
45e14832 |
380 | gint getFacilityInfo(LttTrace *t, gchar* eventdefs) |
6cd62ccf |
381 | { |
45e14832 |
382 | GDir * dir; |
383 | const gchar * name; |
8d1e6362 |
384 | unsigned int i,j; |
963b5f2d |
385 | LttFacility * f; |
386 | LttEventType * et; |
45e14832 |
387 | gchar fullname[DIR_NAME_SIZE]; |
388 | GError * error = NULL; |
389 | |
390 | dir = g_dir_open(eventdefs, 0, &error); |
963b5f2d |
391 | |
45e14832 |
392 | if(error != NULL) { |
393 | g_warning("Can not open directory: %s, %s\n", eventdefs, error->message); |
394 | g_error_free(error); |
2a74fbf4 |
395 | return -1; |
396 | } |
963b5f2d |
397 | |
45e14832 |
398 | while((name = g_dir_read_name(dir)) != NULL){ |
399 | if(!g_pattern_match_simple("*.xml", name)) continue; |
400 | strcpy(fullname,eventdefs); |
401 | strcat(fullname,name); |
402 | ltt_facility_open(t,fullname); |
403 | } |
404 | g_dir_close(dir); |
963b5f2d |
405 | |
963b5f2d |
406 | for(j=0;j<t->facility_number;j++){ |
8710c6c7 |
407 | f = (LttFacility*)g_ptr_array_index(t->facilities, j); |
963b5f2d |
408 | for(i=0; i<f->event_number; i++){ |
409 | et = f->events[i]; |
40331ba8 |
410 | setFieldsOffset(NULL, et, NULL, t); |
963b5f2d |
411 | } |
412 | } |
2a74fbf4 |
413 | return 0; |
963b5f2d |
414 | } |
6cd62ccf |
415 | |
45e14832 |
416 | gint getControlFileInfo(LttTrace *t, gchar* control) |
6cd62ccf |
417 | { |
45e14832 |
418 | GDir * dir; |
419 | const gchar *name; |
420 | gchar fullname[DIR_NAME_SIZE]; |
421 | GError * error = NULL; |
422 | |
423 | dir = g_dir_open(control, 0, &error); |
963b5f2d |
424 | |
45e14832 |
425 | if(error != NULL) { |
426 | g_warning("Can not open directory: %s, %s\n", control, error->message); |
427 | g_error_free(error); |
2a74fbf4 |
428 | return -1; |
429 | } |
963b5f2d |
430 | |
45e14832 |
431 | while((name = g_dir_read_name(dir)) != NULL){ |
432 | if(strcmp(name,"facilities") != 0 && |
433 | strcmp(name,"interrupts") != 0 && |
434 | strcmp(name,"processes") != 0) continue; |
963b5f2d |
435 | |
45e14832 |
436 | strcpy(fullname,control); |
437 | strcat(fullname,name); |
438 | if(ltt_tracefile_open_control(t,fullname)) { |
439 | g_dir_close(dir); |
2a74fbf4 |
440 | return -1; |
45e14832 |
441 | } |
963b5f2d |
442 | } |
45e14832 |
443 | g_dir_close(dir); |
2a74fbf4 |
444 | return 0; |
6cd62ccf |
445 | } |
446 | |
2a74fbf4 |
447 | gint getCpuFileInfo(LttTrace *t, char* cpu) |
6cd62ccf |
448 | { |
45e14832 |
449 | GDir * dir; |
450 | const gchar * name; |
451 | gchar fullname[DIR_NAME_SIZE]; |
452 | GError * error = NULL; |
453 | |
454 | dir = g_dir_open(cpu, 0, &error); |
963b5f2d |
455 | |
45e14832 |
456 | if(error != NULL) { |
457 | g_warning("Can not open directory: %s, %s\n", cpu, error->message); |
458 | g_error_free(error); |
2a74fbf4 |
459 | return -1; |
460 | } |
963b5f2d |
461 | |
45e14832 |
462 | while((name = g_dir_read_name(dir)) != NULL){ |
463 | if(strcmp(name,".svn") != 0){ /* . and .. already excluded */ |
464 | strcpy(fullname,cpu); |
465 | strcat(fullname,name); |
466 | ltt_tracefile_open_cpu(t,fullname); |
963b5f2d |
467 | }else continue; |
468 | } |
45e14832 |
469 | g_dir_close(dir); |
2a74fbf4 |
470 | return 0; |
6cd62ccf |
471 | } |
472 | |
963b5f2d |
473 | /***************************************************************************** |
474 | *A trace is specified as a pathname to the directory containing all the |
475 | *associated data (control tracefiles, per cpu tracefiles, event |
476 | *descriptions...). |
477 | * |
478 | *When a trace is closed, all the associated facilities, types and fields |
479 | *are released as well. |
8d1e6362 |
480 | */ |
481 | |
482 | |
483 | /**************************************************************************** |
484 | * get_absolute_pathname |
803229fa |
485 | * |
8d1e6362 |
486 | * return the unique pathname in the system |
487 | * |
ef35d837 |
488 | * MD : Fixed this function so it uses realpath, dealing well with |
489 | * forgotten cases (.. were not used correctly before). |
803229fa |
490 | * |
963b5f2d |
491 | ****************************************************************************/ |
45e14832 |
492 | void get_absolute_pathname(const gchar *pathname, gchar * abs_pathname) |
9f797243 |
493 | { |
9f797243 |
494 | abs_pathname[0] = '\0'; |
803229fa |
495 | |
ef35d837 |
496 | if ( realpath (pathname, abs_pathname) != NULL) |
497 | return; |
498 | else |
499 | { |
8d1e6362 |
500 | /* error, return the original path unmodified */ |
ef35d837 |
501 | strcpy(abs_pathname, pathname); |
9f797243 |
502 | return; |
503 | } |
ef35d837 |
504 | return; |
9f797243 |
505 | } |
506 | |
45e14832 |
507 | LttTrace *ltt_trace_open(const gchar *pathname) |
6cd62ccf |
508 | { |
963b5f2d |
509 | LttTrace * t; |
510 | LttSystemDescription * sys_description; |
45e14832 |
511 | gchar eventdefs[DIR_NAME_SIZE]; |
512 | gchar info[DIR_NAME_SIZE]; |
513 | gchar control[DIR_NAME_SIZE]; |
514 | gchar cpu[DIR_NAME_SIZE]; |
515 | gchar tmp[DIR_NAME_SIZE]; |
516 | gchar abs_path[DIR_NAME_SIZE]; |
963b5f2d |
517 | gboolean has_slash = FALSE; |
518 | |
9f797243 |
519 | get_absolute_pathname(pathname, abs_path); |
963b5f2d |
520 | //establish the pathname to different directories |
9f797243 |
521 | if(abs_path[strlen(abs_path)-1] == '/')has_slash = TRUE; |
522 | strcpy(eventdefs,abs_path); |
963b5f2d |
523 | if(!has_slash)strcat(eventdefs,"/"); |
524 | strcat(eventdefs,"eventdefs/"); |
525 | |
9f797243 |
526 | strcpy(info,abs_path); |
963b5f2d |
527 | if(!has_slash)strcat(info,"/"); |
528 | strcat(info,"info/"); |
529 | |
9f797243 |
530 | strcpy(control,abs_path); |
963b5f2d |
531 | if(!has_slash)strcat(control,"/"); |
532 | strcat(control,"control/"); |
533 | |
9f797243 |
534 | strcpy(cpu,abs_path); |
963b5f2d |
535 | if(!has_slash)strcat(cpu,"/"); |
536 | strcat(cpu,"cpu/"); |
537 | |
538 | //new trace |
963b5f2d |
539 | sys_description = g_new(LttSystemDescription, 1); |
2a74fbf4 |
540 | t = g_new(LttTrace, 1); |
9f797243 |
541 | t->pathname = g_strdup(abs_path); |
963b5f2d |
542 | t->facility_number = 0; |
543 | t->control_tracefile_number = 0; |
544 | t->per_cpu_tracefile_number = 0; |
545 | t->system_description = sys_description; |
546 | t->control_tracefiles = g_ptr_array_new(); |
547 | t->per_cpu_tracefiles = g_ptr_array_new(); |
548 | t->facilities = g_ptr_array_new(); |
1a2ceb63 |
549 | //getDataEndianType(&(t->my_arch_size), &(t->my_arch_endian)); |
550 | |
963b5f2d |
551 | //get system description |
552 | strcpy(tmp,info); |
553 | strcat(tmp,"system.xml"); |
2a74fbf4 |
554 | if(getSystemInfo(sys_description, tmp)) { |
555 | g_ptr_array_free(t->facilities, TRUE); |
556 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
557 | g_ptr_array_free(t->control_tracefiles, TRUE); |
558 | g_free(sys_description); |
559 | g_free(t->pathname); |
560 | g_free(t); |
561 | return NULL; |
562 | } |
1a2ceb63 |
563 | |
564 | /* Set the reverse byte order between trace and reader */ |
565 | if(sys_description->endian == LTT_LITTLE_ENDIAN |
566 | && G_BYTE_ORDER != G_LITTLE_ENDIAN) { |
0f7f40c1 |
567 | t->reverse_byte_order = 1; |
1a2ceb63 |
568 | } else if(sys_description->endian == LTT_BIG_ENDIAN |
569 | && G_BYTE_ORDER != G_BIG_ENDIAN) { |
0f7f40c1 |
570 | t->reverse_byte_order = 1; |
571 | } else t->reverse_byte_order = 0; |
963b5f2d |
572 | |
b333a76b |
573 | //get facilities info |
2a74fbf4 |
574 | if(getFacilityInfo(t,eventdefs)) { |
575 | g_ptr_array_free(t->facilities, TRUE); |
576 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
577 | g_ptr_array_free(t->control_tracefiles, TRUE); |
578 | g_free(sys_description); |
579 | g_free(t->pathname); |
580 | g_free(t); |
581 | return NULL; |
582 | } |
b333a76b |
583 | |
963b5f2d |
584 | //get control tracefile info |
a00149f6 |
585 | getControlFileInfo(t,control); |
586 | /* |
2a74fbf4 |
587 | if(getControlFileInfo(t,control)) { |
588 | g_ptr_array_free(t->facilities, TRUE); |
589 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
590 | g_ptr_array_free(t->control_tracefiles, TRUE); |
591 | g_free(sys_description); |
592 | g_free(t->pathname); |
593 | g_free(t); |
594 | return NULL; |
a00149f6 |
595 | }*/ // With fatal error |
963b5f2d |
596 | |
597 | //get cpu tracefile info |
2a74fbf4 |
598 | if(getCpuFileInfo(t,cpu)) { |
599 | g_ptr_array_free(t->facilities, TRUE); |
600 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
601 | g_ptr_array_free(t->control_tracefiles, TRUE); |
602 | g_free(sys_description); |
603 | g_free(t->pathname); |
604 | g_free(t); |
605 | return NULL; |
606 | } |
963b5f2d |
607 | |
963b5f2d |
608 | return t; |
6cd62ccf |
609 | } |
610 | |
49bf71b5 |
611 | char * ltt_trace_name(LttTrace *t) |
612 | { |
613 | return t->pathname; |
614 | } |
615 | |
616 | |
f7afe191 |
617 | /****************************************************************************** |
618 | * When we copy a trace, we want all the opening actions to happen again : |
619 | * the trace will be reopened and totally independant from the original. |
620 | * That's why we call ltt_trace_open. |
621 | *****************************************************************************/ |
622 | LttTrace *ltt_trace_copy(LttTrace *self) |
623 | { |
624 | return ltt_trace_open(self->pathname); |
625 | } |
626 | |
963b5f2d |
627 | void ltt_trace_close(LttTrace *t) |
6cd62ccf |
628 | { |
8d1e6362 |
629 | unsigned int i; |
963b5f2d |
630 | LttTracefile * tf; |
631 | LttFacility * f; |
632 | |
633 | g_free(t->pathname); |
634 | |
635 | //free system_description |
636 | g_free(t->system_description->description); |
637 | g_free(t->system_description->node_name); |
638 | g_free(t->system_description->domain_name); |
639 | g_free(t->system_description->kernel_name); |
640 | g_free(t->system_description->kernel_release); |
641 | g_free(t->system_description->kernel_version); |
642 | g_free(t->system_description->machine); |
643 | g_free(t->system_description->processor); |
644 | g_free(t->system_description->hardware_platform); |
645 | g_free(t->system_description->operating_system); |
646 | g_free(t->system_description); |
647 | |
648 | //free control_tracefiles |
649 | for(i=0;i<t->control_tracefile_number;i++){ |
650 | tf = (LttTracefile*)g_ptr_array_index(t->control_tracefiles,i); |
651 | ltt_tracefile_close(tf); |
652 | } |
09ad4797 |
653 | g_ptr_array_free(t->control_tracefiles, TRUE); |
963b5f2d |
654 | |
655 | //free per_cpu_tracefiles |
656 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
657 | tf = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles,i); |
658 | ltt_tracefile_close(tf); |
659 | } |
09ad4797 |
660 | g_ptr_array_free(t->per_cpu_tracefiles, TRUE); |
963b5f2d |
661 | |
662 | //free facilities |
663 | for(i=0;i<t->facility_number;i++){ |
664 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
665 | ltt_facility_close(f); |
666 | } |
09ad4797 |
667 | g_ptr_array_free(t->facilities, TRUE); |
963b5f2d |
668 | |
669 | g_free(t); |
09ad4797 |
670 | |
671 | g_blow_chunks(); |
6cd62ccf |
672 | } |
673 | |
963b5f2d |
674 | |
6cd62ccf |
675 | /***************************************************************************** |
963b5f2d |
676 | *Get the system description of the trace |
6cd62ccf |
677 | ****************************************************************************/ |
678 | |
963b5f2d |
679 | LttSystemDescription *ltt_trace_system_description(LttTrace *t) |
6cd62ccf |
680 | { |
963b5f2d |
681 | return t->system_description; |
6cd62ccf |
682 | } |
683 | |
684 | /***************************************************************************** |
963b5f2d |
685 | * The following functions discover the facilities of the trace |
6cd62ccf |
686 | ****************************************************************************/ |
687 | |
963b5f2d |
688 | unsigned ltt_trace_facility_number(LttTrace *t) |
689 | { |
690 | return (unsigned)(t->facility_number); |
691 | } |
692 | |
693 | LttFacility *ltt_trace_facility_get(LttTrace *t, unsigned i) |
6cd62ccf |
694 | { |
963b5f2d |
695 | return (LttFacility*)g_ptr_array_index(t->facilities, i); |
6cd62ccf |
696 | } |
697 | |
698 | /***************************************************************************** |
699 | *Function name |
963b5f2d |
700 | * ltt_trace_facility_find : find facilities in the trace |
6cd62ccf |
701 | *Input params |
963b5f2d |
702 | * t : the trace |
703 | * name : facility name |
704 | *Output params |
705 | * position : position of the facility in the trace |
6cd62ccf |
706 | *Return value |
963b5f2d |
707 | * : the number of facilities |
6cd62ccf |
708 | ****************************************************************************/ |
709 | |
963b5f2d |
710 | unsigned ltt_trace_facility_find(LttTrace *t, char *name, unsigned *position) |
6cd62ccf |
711 | { |
8d1e6362 |
712 | unsigned int i, count=0; |
963b5f2d |
713 | LttFacility * f; |
8a3005f3 |
714 | for(i=0;i<t->facility_number;i++){ |
963b5f2d |
715 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
716 | if(strcmp(f->name,name)==0){ |
717 | count++; |
718 | if(count==1) *position = i; |
719 | }else{ |
720 | if(count) break; |
721 | } |
722 | } |
723 | return count; |
6cd62ccf |
724 | } |
725 | |
726 | /***************************************************************************** |
963b5f2d |
727 | * Functions to discover all the event types in the trace |
6cd62ccf |
728 | ****************************************************************************/ |
729 | |
963b5f2d |
730 | unsigned ltt_trace_eventtype_number(LttTrace *t) |
6cd62ccf |
731 | { |
8d1e6362 |
732 | unsigned int i; |
963b5f2d |
733 | unsigned count = 0; |
dc1cad90 |
734 | unsigned int num = t->facility_number; |
963b5f2d |
735 | LttFacility * f; |
dc1cad90 |
736 | |
737 | for(i=0;i<num;i++){ |
963b5f2d |
738 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
739 | count += f->event_number; |
740 | } |
741 | return count; |
6cd62ccf |
742 | } |
743 | |
155a7b0a |
744 | /* FIXME : performances could be improved with a better design for this |
6e8c19d4 |
745 | * function : sequential search through a container has never been the |
746 | * best on the critical path. */ |
963b5f2d |
747 | LttFacility * ltt_trace_facility_by_id(LttTrace * trace, unsigned id) |
6cd62ccf |
748 | { |
cf74a6f1 |
749 | LttFacility * facility = NULL; |
8d1e6362 |
750 | unsigned int i; |
dc1cad90 |
751 | unsigned int num = trace->facility_number; |
752 | GPtrArray *facilities = trace->facilities; |
cf74a6f1 |
753 | |
dc1cad90 |
754 | for(i=0;unlikely(i<num);){ |
cf74a6f1 |
755 | LttFacility *iter_facility = |
dc1cad90 |
756 | (LttFacility*) g_ptr_array_index(facilities,i); |
757 | unsigned base_id = iter_facility->base_id; |
758 | |
759 | if(likely(id >= base_id && |
760 | id < base_id + iter_facility->event_number)) { |
cf74a6f1 |
761 | facility = iter_facility; |
963b5f2d |
762 | break; |
dc1cad90 |
763 | } else { |
764 | i++; |
cf74a6f1 |
765 | } |
963b5f2d |
766 | } |
dc1cad90 |
767 | |
cf74a6f1 |
768 | return facility; |
6cd62ccf |
769 | } |
770 | |
963b5f2d |
771 | LttEventType *ltt_trace_eventtype_get(LttTrace *t, unsigned evId) |
6cd62ccf |
772 | { |
6e8c19d4 |
773 | LttEventType *event_type; |
774 | |
963b5f2d |
775 | LttFacility * f; |
776 | f = ltt_trace_facility_by_id(t,evId); |
6e8c19d4 |
777 | |
778 | if(unlikely(!f)) event_type = NULL; |
779 | else event_type = f->events[evId - f->base_id]; |
780 | |
781 | return event_type; |
6cd62ccf |
782 | } |
783 | |
784 | /***************************************************************************** |
963b5f2d |
785 | *There is one "per cpu" tracefile for each CPU, numbered from 0 to |
786 | *the maximum number of CPU in the system. When the number of CPU installed |
787 | *is less than the maximum, some positions are unused. There are also a |
788 | *number of "control" tracefiles (facilities, interrupts...). |
6cd62ccf |
789 | ****************************************************************************/ |
963b5f2d |
790 | unsigned ltt_trace_control_tracefile_number(LttTrace *t) |
6cd62ccf |
791 | { |
963b5f2d |
792 | return t->control_tracefile_number; |
6cd62ccf |
793 | } |
794 | |
963b5f2d |
795 | unsigned ltt_trace_per_cpu_tracefile_number(LttTrace *t) |
6cd62ccf |
796 | { |
963b5f2d |
797 | return t->per_cpu_tracefile_number; |
6cd62ccf |
798 | } |
799 | |
800 | /***************************************************************************** |
963b5f2d |
801 | *It is possible to search for the tracefiles by name or by CPU position. |
802 | *The index within the tracefiles of the same type is returned if found |
803 | *and a negative value otherwise. |
6cd62ccf |
804 | ****************************************************************************/ |
805 | |
8d1e6362 |
806 | int ltt_trace_control_tracefile_find(LttTrace *t, const gchar *name) |
6cd62ccf |
807 | { |
963b5f2d |
808 | LttTracefile * tracefile; |
8d1e6362 |
809 | unsigned int i; |
963b5f2d |
810 | for(i=0;i<t->control_tracefile_number;i++){ |
811 | tracefile = (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i); |
812 | if(strcmp(tracefile->name, name)==0)break; |
813 | } |
814 | if(i == t->control_tracefile_number) return -1; |
815 | return i; |
6cd62ccf |
816 | } |
817 | |
8d1e6362 |
818 | /* not really useful. We just have to know that cpu tracefiles |
819 | * comes before control tracefiles. |
820 | */ |
821 | int ltt_trace_per_cpu_tracefile_find(LttTrace *t, const gchar *name) |
6cd62ccf |
822 | { |
963b5f2d |
823 | LttTracefile * tracefile; |
8d1e6362 |
824 | unsigned int i; |
825 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
826 | tracefile = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, i); |
827 | if(strcmp(tracefile->name, name)==0)break; |
963b5f2d |
828 | } |
8d1e6362 |
829 | if(i == t->per_cpu_tracefile_number) return -1; |
830 | return i; |
6cd62ccf |
831 | } |
832 | |
833 | /***************************************************************************** |
963b5f2d |
834 | *Get a specific tracefile |
6cd62ccf |
835 | ****************************************************************************/ |
836 | |
963b5f2d |
837 | LttTracefile *ltt_trace_control_tracefile_get(LttTrace *t, unsigned i) |
6cd62ccf |
838 | { |
5598cfe3 |
839 | return (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i); |
963b5f2d |
840 | } |
841 | |
842 | LttTracefile *ltt_trace_per_cpu_tracefile_get(LttTrace *t, unsigned i) |
843 | { |
844 | return (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, i); |
6cd62ccf |
845 | } |
846 | |
487ad181 |
847 | /***************************************************************************** |
848 | * Get the start time and end time of the trace |
849 | ****************************************************************************/ |
850 | |
851 | void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end) |
852 | { |
853 | LttTime startSmall, startTmp, endBig, endTmp; |
8d1e6362 |
854 | unsigned int i, j=0; |
487ad181 |
855 | LttTracefile * tf; |
856 | |
857 | for(i=0;i<t->control_tracefile_number;i++){ |
858 | tf = g_ptr_array_index(t->control_tracefiles, i); |
859 | readBlock(tf,1); |
01bb5763 |
860 | startTmp = ltt_get_time(t->reverse_byte_order, &tf->a_block_start->time); |
487ad181 |
861 | readBlock(tf,tf->block_number); |
01bb5763 |
862 | endTmp = ltt_get_time(t->reverse_byte_order, &tf->a_block_end->time); |
487ad181 |
863 | if(i==0){ |
864 | startSmall = startTmp; |
865 | endBig = endTmp; |
866 | j = 1; |
867 | continue; |
868 | } |
308711e5 |
869 | if(ltt_time_compare(startSmall,startTmp) > 0) startSmall = startTmp; |
870 | if(ltt_time_compare(endBig,endTmp) < 0) endBig = endTmp; |
487ad181 |
871 | } |
872 | |
873 | for(i=0;i<t->per_cpu_tracefile_number;i++){ |
874 | tf = g_ptr_array_index(t->per_cpu_tracefiles, i); |
875 | readBlock(tf,1); |
01bb5763 |
876 | startTmp = ltt_get_time(t->reverse_byte_order, &tf->a_block_start->time); |
487ad181 |
877 | readBlock(tf,tf->block_number); |
01bb5763 |
878 | endTmp = ltt_get_time(t->reverse_byte_order, &tf->a_block_end->time); |
487ad181 |
879 | if(j == 0 && i==0){ |
880 | startSmall = startTmp; |
881 | endBig = endTmp; |
882 | continue; |
883 | } |
308711e5 |
884 | if(ltt_time_compare(startSmall,startTmp) > 0) startSmall = startTmp; |
885 | if(ltt_time_compare(endBig,endTmp) < 0) endBig = endTmp; |
487ad181 |
886 | } |
887 | |
c02ea99f |
888 | if(start != NULL) *start = startSmall; |
889 | if(end != NULL) *end = endBig; |
487ad181 |
890 | } |
891 | |
892 | |
6cd62ccf |
893 | /***************************************************************************** |
963b5f2d |
894 | *Get the name of a tracefile |
6cd62ccf |
895 | ****************************************************************************/ |
896 | |
963b5f2d |
897 | char *ltt_tracefile_name(LttTracefile *tf) |
6cd62ccf |
898 | { |
963b5f2d |
899 | return tf->name; |
6cd62ccf |
900 | } |
901 | |
80da81ad |
902 | /***************************************************************************** |
903 | * Get the number of blocks in the tracefile |
904 | ****************************************************************************/ |
905 | |
906 | unsigned ltt_tracefile_block_number(LttTracefile *tf) |
907 | { |
908 | return tf->block_number; |
909 | } |
910 | |
6cd62ccf |
911 | /***************************************************************************** |
912 | *Function name |
913 | * ltt_tracefile_seek_time: seek to the first event of the trace with time |
914 | * larger or equal to time |
915 | *Input params |
916 | * t : tracefile |
917 | * time : criteria of the time |
6cd62ccf |
918 | ****************************************************************************/ |
caf7a67a |
919 | void ltt_tracefile_find_time_block(LttTracefile *t, LttTime time, |
920 | int start_block, int end_block) |
921 | { |
922 | int err, tmp_block, s, e; |
923 | int headTime; |
924 | int tailTime; |
925 | |
926 | err=readBlock(t,start_block); |
927 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
928 | if(start_block == end_block)return; |
929 | |
01bb5763 |
930 | tailTime = ltt_time_compare(ltt_get_time(t->trace->reverse_byte_order, |
931 | &t->a_block_end->time), time); |
caf7a67a |
932 | if(tailTime >= 0) return; |
933 | |
934 | err=readBlock(t,end_block); |
935 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
936 | if(start_block+1 == end_block)return; |
937 | |
01bb5763 |
938 | headTime = ltt_time_compare(ltt_get_time(t->trace->reverse_byte_order, |
939 | &t->a_block_start->time), time); |
caf7a67a |
940 | if(headTime <= 0 ) return; |
941 | |
942 | tmp_block = (end_block + start_block)/2; |
943 | err=readBlock(t,tmp_block); |
944 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
945 | |
01bb5763 |
946 | headTime = ltt_time_compare(ltt_get_time(t->trace->reverse_byte_order, |
947 | &t->a_block_start->time), time); |
948 | tailTime = ltt_time_compare(ltt_get_time(t->trace->reverse_byte_order, |
949 | &t->a_block_end->time), time); |
caf7a67a |
950 | if(headTime <= 0 && tailTime >= 0) return; |
951 | |
952 | if(headTime > 0){ |
953 | s = start_block + 1; |
954 | e = tmp_block - 1; |
955 | if(s <= e) |
956 | ltt_tracefile_find_time_block(t, time, s, e); |
957 | else return; |
958 | } |
959 | |
960 | if(tailTime < 0){ |
961 | s = tmp_block + 1; |
962 | e = end_block - 1; |
963 | if(s <= e) |
964 | ltt_tracefile_find_time_block(t, time, s, e); |
965 | else return; |
966 | } |
967 | } |
968 | |
969 | void ltt_tracefile_backward_find_time_block(LttTracefile *t, LttTime time) |
970 | { |
971 | int t_time, h_time, err; |
972 | err=readBlock(t,t->which_block-1); |
973 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
01bb5763 |
974 | h_time = ltt_time_compare(ltt_get_time(t->trace->reverse_byte_order, |
975 | &t->a_block_start->time), time); |
976 | t_time = ltt_time_compare(ltt_get_time(t->trace->reverse_byte_order, |
977 | &t->a_block_end->time), time); |
caf7a67a |
978 | if(h_time == 0){ |
979 | int tmp; |
980 | if(t->which_block == 1) return; |
981 | err=readBlock(t,t->which_block-1); |
982 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
01bb5763 |
983 | tmp = ltt_time_compare(ltt_get_time(t->trace->reverse_byte_order, |
984 | &t->a_block_end->time), time); |
caf7a67a |
985 | if(tmp == 0) return ltt_tracefile_seek_time(t, time); |
986 | err=readBlock(t,t->which_block+1); |
987 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
988 | }else if(h_time > 0){ |
989 | ltt_tracefile_find_time_block(t, time, 1, t->which_block); |
990 | return ltt_tracefile_seek_time(t, time) ; |
991 | }else{ |
992 | if(t_time >= 0) return ltt_tracefile_seek_time(t, time); |
993 | err=readBlock(t,t->which_block+1); |
994 | if(err) g_error("Can not read tracefile: %s\n", t->name); |
995 | } |
996 | } |
6cd62ccf |
997 | |
963b5f2d |
998 | void ltt_tracefile_seek_time(LttTracefile *t, LttTime time) |
6cd62ccf |
999 | { |
1000 | int err; |
963b5f2d |
1001 | LttTime lttTime; |
01bb5763 |
1002 | int headTime = ltt_time_compare(ltt_get_time(t->trace->reverse_byte_order, |
1003 | &t->a_block_start->time), time); |
1004 | int tailTime = ltt_time_compare(ltt_get_time(t->trace->reverse_byte_order, |
1005 | &t->a_block_end->time), time); |
c02ea99f |
1006 | LttEvent ev; |
62e55dd6 |
1007 | |
6cd62ccf |
1008 | if(headTime < 0 && tailTime > 0){ |
01bb5763 |
1009 | if(ltt_time_compare(ltt_get_time(t->trace->reverse_byte_order, |
1010 | &t->a_block_end->time), |
1011 | t->current_event_time) !=0) { |
db55eaae |
1012 | lttTime = getEventTime(t); |
308711e5 |
1013 | err = ltt_time_compare(lttTime, time); |
db55eaae |
1014 | if(err > 0){ |
8d1e6362 |
1015 | if(t->which_event==2 || ltt_time_compare(t->prev_event_time,time)<0){ |
1a3b8cbd |
1016 | return; |
db55eaae |
1017 | }else{ |
1018 | updateTracefile(t); |
1019 | return ltt_tracefile_seek_time(t, time); |
1a3b8cbd |
1020 | } |
db55eaae |
1021 | }else if(err < 0){ |
1022 | while(1){ |
c02ea99f |
1023 | if(ltt_tracefile_read(t,&ev) == NULL) { |
db55eaae |
1024 | g_print("End of file\n"); |
1025 | return; |
1026 | } |
1027 | lttTime = getEventTime(t); |
308711e5 |
1028 | err = ltt_time_compare(lttTime, time); |
db55eaae |
1029 | if(err >= 0)return; |
1030 | } |
1031 | }else return; |
1032 | }else{//we are at the end of the block |
1033 | updateTracefile(t); |
1034 | return ltt_tracefile_seek_time(t, time); |
1035 | } |
e37c1372 |
1036 | }else if(headTime >= 0){ |
6cd62ccf |
1037 | if(t->which_block == 1){ |
1038 | updateTracefile(t); |
1039 | }else{ |
1ee6a9af |
1040 | if(ltt_time_compare(t->prev_block_end_time, time) >= 0 || |
1041 | (t->prev_block_end_time.tv_sec == 0 && |
1042 | t->prev_block_end_time.tv_nsec == 0 )){ |
caf7a67a |
1043 | ltt_tracefile_backward_find_time_block(t, time); |
6cd62ccf |
1044 | }else{ |
1045 | updateTracefile(t); |
1046 | } |
1047 | } |
40331ba8 |
1048 | }else if(tailTime < 0){ |
6cd62ccf |
1049 | if(t->which_block != t->block_number){ |
caf7a67a |
1050 | ltt_tracefile_find_time_block(t, time, t->which_block+1, t->block_number); |
1051 | return ltt_tracefile_seek_time(t, time); |
963b5f2d |
1052 | }else { |
a8c0f09d |
1053 | t->cur_event_pos = t->buffer + t->block_size; |
1054 | g_print("End of file\n"); |
963b5f2d |
1055 | return; |
1056 | } |
40331ba8 |
1057 | }else if(tailTime == 0){ |
e37c1372 |
1058 | t->cur_event_pos = t->last_event_pos; |
62e55dd6 |
1059 | t->current_event_time = time; |
1060 | t->cur_heart_beat_number = 0; |
1061 | t->prev_event_time.tv_sec = 0; |
1062 | t->prev_event_time.tv_nsec = 0; |
40331ba8 |
1063 | return; |
6cd62ccf |
1064 | } |
6cd62ccf |
1065 | } |
1066 | |
80da81ad |
1067 | /***************************************************************************** |
1068 | * Seek to the first event with position equal or larger to ep |
18206708 |
1069 | * |
1070 | * Modified by Mathieu Desnoyers to used faster offset position instead of |
1071 | * re-reading the whole buffer. |
80da81ad |
1072 | ****************************************************************************/ |
1073 | |
04b44e05 |
1074 | void ltt_tracefile_seek_position(LttTracefile *t, const LttEventPosition *ep) |
80da81ad |
1075 | { |
1076 | //if we are at the right place, just return |
155a7b0a |
1077 | if(likely(t->which_block == ep->block_num && t->which_event == ep->event_num)) |
80da81ad |
1078 | return; |
1079 | |
155a7b0a |
1080 | if(likely(t->which_block == ep->block_num)) updateTracefile(t); |
80da81ad |
1081 | else readBlock(t,ep->block_num); |
18206708 |
1082 | //event offset is available |
155a7b0a |
1083 | if(likely(ep->old_position)){ |
18206708 |
1084 | int err; |
1085 | |
1086 | t->which_event = ep->event_num; |
80da81ad |
1087 | t->cur_event_pos = t->buffer + ep->event_offset; |
18206708 |
1088 | t->prev_event_time = ep->event_time; |
1089 | t->current_event_time = ep->event_time; |
1090 | t->cur_heart_beat_number = ep->heart_beat_number; |
1091 | t->cur_cycle_count = ep->event_cycle_count; |
1092 | |
1093 | /* This is a workaround for fast position seek */ |
1094 | t->last_event_pos = ep->last_event_pos; |
1095 | t->prev_block_end_time = ep->prev_block_end_time; |
1096 | t->prev_event_time = ep->prev_event_time; |
1097 | t->pre_cycle_count = ep->pre_cycle_count; |
1098 | t->count = ep->count; |
2dee981d |
1099 | t->overflow_nsec = ep->overflow_nsec; |
dfb73233 |
1100 | t->last_heartbeat = ep->last_heartbeat; |
18206708 |
1101 | /* end of workaround */ |
1102 | |
1103 | //update the fields of the current event and go to the next event |
1104 | err = skipEvent(t); |
155a7b0a |
1105 | if(unlikely(err == ERANGE)) g_error("event id is out of range\n"); |
18206708 |
1106 | |
80da81ad |
1107 | return; |
1108 | } |
1109 | |
18206708 |
1110 | //only block number and event index are available |
1111 | //MD: warning : this is slow! |
1112 | g_warning("using slow O(n) tracefile seek position"); |
1113 | |
c02ea99f |
1114 | LttEvent event; |
155a7b0a |
1115 | while(likely(t->which_event < ep->event_num)) ltt_tracefile_read(t, &event); |
80da81ad |
1116 | |
1117 | return; |
1118 | } |
1119 | |
6cd62ccf |
1120 | /***************************************************************************** |
1121 | *Function name |
40331ba8 |
1122 | * ltt_tracefile_read : read the current event, set the pointer to the next |
6cd62ccf |
1123 | *Input params |
1124 | * t : tracefile |
1125 | *Return value |
963b5f2d |
1126 | * LttEvent * : an event to be processed |
6cd62ccf |
1127 | ****************************************************************************/ |
1128 | |
c02ea99f |
1129 | LttEvent *ltt_tracefile_read(LttTracefile *t, LttEvent *event) |
6cd62ccf |
1130 | { |
963b5f2d |
1131 | int err; |
6cd62ccf |
1132 | |
155a7b0a |
1133 | if(unlikely(t->cur_event_pos == t->buffer + t->block_size)){ |
1134 | if(unlikely(t->which_block == t->block_number)){ |
bdc36259 |
1135 | return NULL; |
1136 | } |
1137 | err = readBlock(t, t->which_block + 1); |
155a7b0a |
1138 | if(unlikely(err))g_error("Can not read tracefile"); |
bdc36259 |
1139 | } |
1140 | |
0f7f40c1 |
1141 | event->event_id = ltt_get_uint16(t->trace->reverse_byte_order, t->cur_event_pos); |
155a7b0a |
1142 | if(unlikely(event->event_id == TRACE_TIME_HEARTBEAT)) |
963b5f2d |
1143 | t->cur_heart_beat_number++; |
6cd62ccf |
1144 | |
40331ba8 |
1145 | t->prev_event_time = t->current_event_time; |
62e55dd6 |
1146 | // t->current_event_time = getEventTime(t); |
6cd62ccf |
1147 | |
0f7f40c1 |
1148 | event->time_delta = ltt_get_uint32(t->trace->reverse_byte_order, t->cur_event_pos + EVENT_ID_SIZE); |
c02ea99f |
1149 | event->event_time = t->current_event_time; |
1150 | event->event_cycle_count = t->cur_cycle_count; |
963b5f2d |
1151 | |
c02ea99f |
1152 | event->tracefile = t; |
1a2ceb63 |
1153 | event->data = t->cur_event_pos + EVENT_HEADER_SIZE; |
c02ea99f |
1154 | event->which_block = t->which_block; |
1155 | event->which_event = t->which_event; |
6cd62ccf |
1156 | |
18206708 |
1157 | /* This is a workaround for fast position seek */ |
c02ea99f |
1158 | event->last_event_pos = t->last_event_pos; |
1159 | event->prev_block_end_time = t->prev_block_end_time; |
1160 | event->prev_event_time = t->prev_event_time; |
1161 | event->pre_cycle_count = t->pre_cycle_count; |
1162 | event->count = t->count; |
2dee981d |
1163 | event->overflow_nsec = t->overflow_nsec; |
dfb73233 |
1164 | event->last_heartbeat = t->last_heartbeat; |
2dee981d |
1165 | |
18206708 |
1166 | /* end of workaround */ |
1167 | |
1168 | |
1169 | |
40331ba8 |
1170 | //update the fields of the current event and go to the next event |
1171 | err = skipEvent(t); |
155a7b0a |
1172 | if(unlikely(err == ERANGE)) g_error("event id is out of range\n"); |
40331ba8 |
1173 | |
c02ea99f |
1174 | return event; |
6cd62ccf |
1175 | } |
1176 | |
1177 | /**************************************************************************** |
1178 | *Function name |
1179 | * readFile : wrap function to read from a file |
1180 | *Input Params |
1181 | * fd : file descriptor |
1182 | * buf : buf to contain the content |
1183 | * size : number of bytes to be read |
1184 | * mesg : message to be printed if some thing goes wrong |
1185 | *return value |
1186 | * 0 : success |
1187 | * EIO : can not read from the file |
1188 | ****************************************************************************/ |
1189 | |
1190 | int readFile(int fd, void * buf, size_t size, char * mesg) |
1191 | { |
8d1e6362 |
1192 | ssize_t nbBytes = read(fd, buf, size); |
1193 | |
1194 | if((size_t)nbBytes != size) { |
1195 | if(nbBytes < 0) { |
1196 | perror("Error in readFile : "); |
1197 | } else { |
1198 | g_warning("%s",mesg); |
1199 | } |
6cd62ccf |
1200 | return EIO; |
1201 | } |
1202 | return 0; |
1203 | } |
1204 | |
507915ee |
1205 | |
6cd62ccf |
1206 | /**************************************************************************** |
1207 | *Function name |
1208 | * readBlock : read a block from the file |
1209 | *Input Params |
1210 | * lttdes : ltt trace file |
1211 | * whichBlock : the block which will be read |
1212 | *return value |
1213 | * 0 : success |
1214 | * EINVAL : lseek fail |
1215 | * EIO : can not read from the file |
1216 | ****************************************************************************/ |
1217 | |
963b5f2d |
1218 | int readBlock(LttTracefile * tf, int whichBlock) |
6cd62ccf |
1219 | { |
1220 | off_t nbBytes; |
cbd41522 |
1221 | guint32 lostSize; |
6cd62ccf |
1222 | |
ac849774 |
1223 | /* same block already opened requested */ |
1224 | if((guint)whichBlock == tf->which_block) return 0; |
1225 | |
155a7b0a |
1226 | if(likely(whichBlock - tf->which_block == 1 && tf->which_block != 0)){ |
01bb5763 |
1227 | tf->prev_block_end_time = ltt_get_time(tf->trace->reverse_byte_order, |
1228 | &tf->a_block_end->time); |
1229 | tf->prev_event_time = ltt_get_time(tf->trace->reverse_byte_order, |
1230 | &tf->a_block_end->time); |
6cd62ccf |
1231 | }else{ |
1232 | tf->prev_block_end_time.tv_sec = 0; |
1233 | tf->prev_block_end_time.tv_nsec = 0; |
40331ba8 |
1234 | tf->prev_event_time.tv_sec = 0; |
1235 | tf->prev_event_time.tv_nsec = 0; |
6cd62ccf |
1236 | } |
6cd62ccf |
1237 | |
963b5f2d |
1238 | nbBytes=lseek(tf->fd,(off_t)((whichBlock-1)*tf->block_size), SEEK_SET); |
155a7b0a |
1239 | if(unlikely(nbBytes == -1)) return EINVAL; |
6cd62ccf |
1240 | |
155a7b0a |
1241 | if(unlikely(readFile(tf->fd,tf->buffer,tf->block_size,"Unable to read a block"))) |
963b5f2d |
1242 | return EIO; |
6cd62ccf |
1243 | |
963b5f2d |
1244 | tf->a_block_start=(BlockStart *) (tf->buffer + EVENT_HEADER_SIZE); |
cbd41522 |
1245 | lostSize = *(guint32 *)(tf->buffer + tf->block_size - sizeof(guint32)); |
63c35f6c |
1246 | tf->a_block_end=(BlockEnd *)(tf->buffer + tf->block_size |
1247 | - sizeof(guint32) - lostSize - sizeof(BlockEnd)); |
1248 | tf->last_event_pos = tf->buffer + tf->block_size - |
1249 | sizeof(guint32) - lostSize |
1250 | - sizeof(BlockEnd) - EVENT_HEADER_SIZE; |
6cd62ccf |
1251 | |
6cd62ccf |
1252 | tf->which_block = whichBlock; |
963b5f2d |
1253 | tf->which_event = 1; |
40331ba8 |
1254 | tf->cur_event_pos = tf->buffer;//the beginning of the block, block start ev |
6cd62ccf |
1255 | tf->cur_heart_beat_number = 0; |
dfb73233 |
1256 | tf->last_heartbeat = NULL; |
507915ee |
1257 | |
1258 | /* read the whole block to precalculate total of cycles in it */ |
1259 | tf->count = 0; |
1260 | tf->pre_cycle_count = 0; |
0f7f40c1 |
1261 | tf->cur_cycle_count = ltt_get_uint32(tf->trace->reverse_byte_order, tf->cur_event_pos + EVENT_ID_SIZE); |
39ae3eed |
1262 | |
6cd62ccf |
1263 | getCyclePerNsec(tf); |
2dee981d |
1264 | |
21ff84a0 |
1265 | tf->overflow_nsec = |
1a2ceb63 |
1266 | (-((double) |
01bb5763 |
1267 | (ltt_get_uint64(tf->trace->reverse_byte_order, |
0f7f40c1 |
1268 | &tf->a_block_start->cycle_count)&0xFFFFFFFF)) |
21ff84a0 |
1269 | * tf->nsec_per_cycle); |
6cd62ccf |
1270 | |
62e55dd6 |
1271 | tf->current_event_time = getEventTime(tf); |
40331ba8 |
1272 | |
6cd62ccf |
1273 | return 0; |
1274 | } |
1275 | |
1276 | /***************************************************************************** |
1277 | *Function name |
1278 | * updateTracefile : reinitialize the info of the block which is already |
1279 | * in the buffer |
1280 | *Input params |
1281 | * tf : tracefile |
1282 | ****************************************************************************/ |
1283 | |
963b5f2d |
1284 | void updateTracefile(LttTracefile * tf) |
6cd62ccf |
1285 | { |
963b5f2d |
1286 | tf->which_event = 1; |
40331ba8 |
1287 | tf->cur_event_pos = tf->buffer; |
62e55dd6 |
1288 | tf->current_event_time = getEventTime(tf); |
6cd62ccf |
1289 | tf->cur_heart_beat_number = 0; |
1290 | |
1291 | tf->prev_event_time.tv_sec = 0; |
1292 | tf->prev_event_time.tv_nsec = 0; |
2dee981d |
1293 | tf->count = 0; |
1294 | |
1a2ceb63 |
1295 | tf->overflow_nsec = |
01bb5763 |
1296 | (-((double)ltt_get_uint64(tf->trace->reverse_byte_order, |
0f7f40c1 |
1297 | &tf->a_block_start->cycle_count)) |
21ff84a0 |
1298 | * tf->nsec_per_cycle); |
2dee981d |
1299 | |
6cd62ccf |
1300 | } |
1301 | |
1302 | /***************************************************************************** |
1303 | *Function name |
1304 | * skipEvent : go to the next event, update the fields of the current event |
1305 | *Input params |
1306 | * t : tracefile |
1307 | *return value |
1308 | * 0 : success |
6cd62ccf |
1309 | * ERANGE : event id is out of range |
1310 | ****************************************************************************/ |
1311 | |
963b5f2d |
1312 | int skipEvent(LttTracefile * t) |
6cd62ccf |
1313 | { |
8d1e6362 |
1314 | int evId; |
6cd62ccf |
1315 | void * evData; |
963b5f2d |
1316 | LttEventType * evT; |
1317 | LttField * rootFld; |
6cd62ccf |
1318 | |
0f7f40c1 |
1319 | evId = ltt_get_uint16(t->trace->reverse_byte_order, t->cur_event_pos); |
6cd62ccf |
1320 | evData = t->cur_event_pos + EVENT_HEADER_SIZE; |
6cd62ccf |
1321 | |
908f42fa |
1322 | evT = ltt_trace_eventtype_get(t->trace,(unsigned)evId); |
47a166fc |
1323 | |
1d1df11d |
1324 | if(likely(evT)) rootFld = evT->root_field; |
908f42fa |
1325 | else return ERANGE; |
6cd62ccf |
1326 | |
1d1df11d |
1327 | if(likely(rootFld)){ |
908f42fa |
1328 | //event has string/sequence or the last event is not the same event |
1d1df11d |
1329 | if(likely((evT->latest_block!=t->which_block || evT->latest_event!=t->which_event) |
1330 | && rootFld->field_fixed == 0)){ |
908f42fa |
1331 | setFieldsOffset(t, evT, evData, t->trace); |
47a166fc |
1332 | } |
908f42fa |
1333 | t->cur_event_pos += EVENT_HEADER_SIZE + rootFld->field_size; |
1334 | }else t->cur_event_pos += EVENT_HEADER_SIZE; |
1335 | |
1336 | evT->latest_block = t->which_block; |
1337 | evT->latest_event = t->which_event; |
1338 | |
6cd62ccf |
1339 | //the next event is in the next block |
1d1df11d |
1340 | if(unlikely(evId == TRACE_BLOCK_END)){ |
bdc36259 |
1341 | t->cur_event_pos = t->buffer + t->block_size; |
6cd62ccf |
1342 | }else{ |
0f7f40c1 |
1343 | t->cur_cycle_count = ltt_get_uint32(t->trace->reverse_byte_order, |
1344 | t->cur_event_pos + EVENT_ID_SIZE); |
6cd62ccf |
1345 | t->which_event++; |
62e55dd6 |
1346 | t->current_event_time = getEventTime(t); |
6cd62ccf |
1347 | } |
1348 | |
1349 | return 0; |
1350 | } |
1351 | |
18206708 |
1352 | |
6cd62ccf |
1353 | /***************************************************************************** |
1354 | *Function name |
1355 | * getCyclePerNsec : calculate cycles per nsec for current block |
507915ee |
1356 | * MD: should have tracefile_read the whole block, so we know the |
1357 | * total of cycles in it before being called. |
6cd62ccf |
1358 | *Input Params |
1359 | * t : tracefile |
1360 | ****************************************************************************/ |
1361 | |
963b5f2d |
1362 | void getCyclePerNsec(LttTracefile * t) |
6cd62ccf |
1363 | { |
963b5f2d |
1364 | LttTime lBufTotalTime; /* Total time for this buffer */ |
887208b7 |
1365 | double lBufTotalNSec; /* Total time for this buffer in nsecs */ |
8ee1c3d5 |
1366 | LttCycleCount lBufTotalCycle;/* Total cycles for this buffer */ |
6cd62ccf |
1367 | |
1368 | /* Calculate the total time for this buffer */ |
01bb5763 |
1369 | lBufTotalTime = ltt_time_sub( |
1370 | ltt_get_time(t->trace->reverse_byte_order, &t->a_block_end->time), |
1371 | ltt_get_time(t->trace->reverse_byte_order, &t->a_block_start->time)); |
6cd62ccf |
1372 | |
1373 | /* Calculate the total cycles for this bufffer */ |
01bb5763 |
1374 | lBufTotalCycle = ltt_get_uint64(t->trace->reverse_byte_order, |
0f7f40c1 |
1375 | &t->a_block_end->cycle_count); |
01bb5763 |
1376 | lBufTotalCycle -= ltt_get_uint64(t->trace->reverse_byte_order, |
0f7f40c1 |
1377 | &t->a_block_start->cycle_count); |
6cd62ccf |
1378 | |
8ee1c3d5 |
1379 | /* Convert the total time to double */ |
887208b7 |
1380 | lBufTotalNSec = ltt_time_to_double(lBufTotalTime); |
6cd62ccf |
1381 | |
887208b7 |
1382 | t->nsec_per_cycle = (double)lBufTotalNSec / (double)lBufTotalCycle; |
8ee1c3d5 |
1383 | |
2dee981d |
1384 | /* Pre-multiply one overflow (2^32 cycles) by nsec_per_cycle */ |
21ff84a0 |
1385 | t->one_overflow_nsec = t->nsec_per_cycle * (double)0x100000000ULL; |
2dee981d |
1386 | |
6cd62ccf |
1387 | } |
1388 | |
1389 | /**************************************************************************** |
1390 | *Function name |
1391 | * getEventTime : obtain the time of an event |
887208b7 |
1392 | * NOTE : this function _really_ is on critical path. |
6cd62ccf |
1393 | *Input params |
1394 | * tf : tracefile |
1395 | *Return value |
963b5f2d |
1396 | * LttTime : the time of the event |
6cd62ccf |
1397 | ****************************************************************************/ |
1398 | |
8959a0c8 |
1399 | static inline LttTime getEventTime(LttTracefile * tf) |
6cd62ccf |
1400 | { |
963b5f2d |
1401 | LttTime time; |
1402 | LttCycleCount cycle_count; // cycle count for the current event |
2dee981d |
1403 | //LttCycleCount lEventTotalCycle; // Total cycles from start for event |
1404 | gint64 lEventNSec; // Total nsecs from start for event |
963b5f2d |
1405 | LttTime lTimeOffset; // Time offset in struct LttTime |
cbd41522 |
1406 | guint16 evId; |
e4eced0f |
1407 | |
0f7f40c1 |
1408 | evId = ltt_get_uint16(tf->trace->reverse_byte_order, |
1409 | tf->cur_event_pos); |
ac849774 |
1410 | |
0f7f40c1 |
1411 | cycle_count = ltt_get_uint32(tf->trace->reverse_byte_order, |
1412 | tf->cur_event_pos + EVENT_ID_SIZE); |
e4eced0f |
1413 | |
dfb73233 |
1414 | gboolean comp_count = cycle_count < tf->pre_cycle_count; |
bbf28e50 |
1415 | |
dfb73233 |
1416 | tf->pre_cycle_count = cycle_count; |
1417 | |
1418 | if(unlikely(comp_count)) { |
bbf28e50 |
1419 | /* Overflow */ |
dfb73233 |
1420 | tf->overflow_nsec += tf->one_overflow_nsec; |
1421 | tf->count++; //increment overflow count |
1422 | } |
1423 | |
1424 | if(unlikely(evId == TRACE_BLOCK_START)) { |
1425 | lEventNSec = 0; |
1426 | } else if(unlikely(evId == TRACE_BLOCK_END)) { |
21ff84a0 |
1427 | lEventNSec = ((double) |
01bb5763 |
1428 | (ltt_get_uint64(tf->trace->reverse_byte_order, |
0f7f40c1 |
1429 | &tf->a_block_end->cycle_count) |
01bb5763 |
1430 | - ltt_get_uint64(tf->trace->reverse_byte_order, |
0f7f40c1 |
1431 | &tf->a_block_start->cycle_count)) |
21ff84a0 |
1432 | * tf->nsec_per_cycle); |
dfb73233 |
1433 | } |
dfb73233 |
1434 | #if 0 |
bbf28e50 |
1435 | /* If you want to make heart beat a special case and use their own 64 bits |
1436 | * TSC, activate this. |
1437 | */ |
dfb73233 |
1438 | else if(unlikely(evId == TRACE_TIME_HEARTBEAT)) { |
1439 | |
1440 | tf->last_heartbeat = (TimeHeartbeat*)(tf->cur_event_pos+EVENT_HEADER_SIZE); |
1441 | lEventNSec = ((double)(tf->last_heartbeat->cycle_count |
1442 | - tf->a_block_start->cycle_count) |
1443 | * tf->nsec_per_cycle); |
1444 | } |
1445 | #endif //0 |
1446 | else { |
21ff84a0 |
1447 | lEventNSec = (gint64)((double)cycle_count * tf->nsec_per_cycle) |
dfb73233 |
1448 | +tf->overflow_nsec; |
1449 | } |
1450 | |
2dee981d |
1451 | lTimeOffset = ltt_time_from_uint64(lEventNSec); |
1452 | |
01bb5763 |
1453 | time = ltt_time_add(ltt_get_time(tf->trace->reverse_byte_order, |
1454 | &tf->a_block_start->time), lTimeOffset); |
e4eced0f |
1455 | |
6cd62ccf |
1456 | return time; |
1457 | } |
1458 | |
1459 | /***************************************************************************** |
1460 | *Function name |
1461 | * setFieldsOffset : set offset of the fields |
1462 | *Input params |
1463 | * tracefile : opened trace file |
1464 | * evT : the event type |
1465 | * evD : event data, it may be NULL |
1466 | ****************************************************************************/ |
1467 | |
40331ba8 |
1468 | void setFieldsOffset(LttTracefile *tf,LttEventType *evT,void *evD,LttTrace* t) |
6cd62ccf |
1469 | { |
963b5f2d |
1470 | LttField * rootFld = evT->root_field; |
6cd62ccf |
1471 | // rootFld->base_address = evD; |
1472 | |
1d1df11d |
1473 | if(likely(rootFld)) |
8710c6c7 |
1474 | rootFld->field_size = getFieldtypeSize(tf, evT, 0,0,rootFld, evD,t); |
6cd62ccf |
1475 | } |
1476 | |
1477 | /***************************************************************************** |
1478 | *Function name |
1479 | * getFieldtypeSize: get the size of the field type (primitive type) |
1480 | *Input params |
1481 | * tracefile : opened trace file |
1482 | * evT : event type |
1483 | * offsetRoot : offset from the root |
1484 | * offsetParent : offset from the parrent |
1485 | * fld : field |
1486 | * evD : event data, it may be NULL |
1487 | *Return value |
1488 | * int : size of the field |
1489 | ****************************************************************************/ |
1490 | |
21182d4a |
1491 | static inline gint getFieldtypeSize(LttTracefile * t, |
1492 | LttEventType * evT, gint offsetRoot, |
1493 | gint offsetParent, LttField * fld, void *evD, LttTrace *trace) |
6cd62ccf |
1494 | { |
21182d4a |
1495 | gint size, size1, element_number, i, offset1, offset2; |
963b5f2d |
1496 | LttType * type = fld->field_type; |
6cd62ccf |
1497 | |
21182d4a |
1498 | if(unlikely(t && evT->latest_block==t->which_block && |
1499 | evT->latest_event==t->which_event)){ |
1500 | size = fld->field_size; |
1501 | goto end_getFieldtypeSize; |
a0d63196 |
1502 | } else { |
1503 | /* This likely has been tested with gcov : half of them.. */ |
1504 | if(unlikely(fld->field_fixed == 1)){ |
1505 | /* tested : none */ |
1506 | if(unlikely(fld == evT->root_field)) { |
1507 | size = fld->field_size; |
1508 | goto end_getFieldtypeSize; |
1509 | } |
21182d4a |
1510 | } |
6cd62ccf |
1511 | |
a0d63196 |
1512 | /* From gcov profiling : half string, half struct, can we gain something |
1513 | * from that ? (Mathieu) */ |
1514 | switch(type->type_class) { |
1515 | case LTT_ARRAY: |
1516 | element_number = (int) type->element_number; |
1517 | if(fld->field_fixed == -1){ |
1518 | size = getFieldtypeSize(t, evT, offsetRoot, |
1519 | 0,fld->child[0], NULL, trace); |
1520 | if(size == 0){ //has string or sequence |
1521 | fld->field_fixed = 0; |
1522 | }else{ |
1523 | fld->field_fixed = 1; |
1524 | size *= element_number; |
1525 | } |
1526 | }else if(fld->field_fixed == 0){// has string or sequence |
1527 | size = 0; |
1528 | for(i=0;i<element_number;i++){ |
1529 | size += getFieldtypeSize(t, evT, offsetRoot+size,size, |
1530 | fld->child[0], evD+size, trace); |
1531 | } |
1532 | }else size = fld->field_size; |
1533 | if(unlikely(!evD)){ |
1534 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
1535 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
1536 | } |
1537 | |
1538 | break; |
1539 | |
1540 | case LTT_SEQUENCE: |
1541 | size1 = (int) ltt_type_size(trace, type); |
1542 | if(fld->field_fixed == -1){ |
1543 | fld->sequ_number_size = size1; |
cf74a6f1 |
1544 | fld->field_fixed = 0; |
a0d63196 |
1545 | size = getFieldtypeSize(t, evT, offsetRoot, |
1546 | 0,fld->child[0], NULL, trace); |
1547 | fld->element_size = size; |
1548 | }else{//0: sequence |
0f7f40c1 |
1549 | element_number = getIntNumber(t->trace->reverse_byte_order,size1,evD); |
a0d63196 |
1550 | type->element_number = element_number; |
1551 | if(fld->element_size > 0){ |
1552 | size = element_number * fld->element_size; |
1553 | }else{//sequence has string or sequence |
1554 | size = 0; |
1555 | for(i=0;i<element_number;i++){ |
1556 | size += getFieldtypeSize(t, evT, offsetRoot+size+size1,size+size1, |
1557 | fld->child[0], evD+size+size1, trace); |
1558 | } |
1559 | } |
1560 | size += size1; |
cf74a6f1 |
1561 | } |
a0d63196 |
1562 | if(unlikely(!evD)){ |
1563 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
1564 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
1565 | } |
1566 | |
1567 | break; |
1568 | |
1569 | case LTT_STRING: |
cf74a6f1 |
1570 | size = 0; |
a0d63196 |
1571 | if(fld->field_fixed == -1){ |
1572 | fld->field_fixed = 0; |
1573 | }else{//0: string |
1574 | /* Hope my implementation is faster than strlen (Mathieu) */ |
1575 | char *ptr=(char*)evD; |
1576 | size = 1; |
1577 | /* from gcov : many many strings are empty, make it the common case.*/ |
1578 | while(unlikely(*ptr != '\0')) { size++; ptr++; } |
1579 | //size = ptr - (char*)evD + 1; //include end : '\0' |
cf74a6f1 |
1580 | } |
a0d63196 |
1581 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
1582 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
cf74a6f1 |
1583 | |
a0d63196 |
1584 | break; |
1585 | |
1586 | case LTT_STRUCT: |
1587 | element_number = (int) type->element_number; |
1588 | size = 0; |
1589 | /* tested with gcov */ |
1590 | if(unlikely(fld->field_fixed == -1)){ |
1591 | offset1 = offsetRoot; |
1592 | offset2 = 0; |
cf74a6f1 |
1593 | for(i=0;i<element_number;i++){ |
a0d63196 |
1594 | size1=getFieldtypeSize(t, evT,offset1,offset2, |
1595 | fld->child[i], NULL, trace); |
1596 | if(likely(size1 > 0 && size >= 0)){ |
1597 | size += size1; |
1598 | if(likely(offset1 >= 0)) offset1 += size1; |
1599 | offset2 += size1; |
1600 | }else{ |
1601 | size = -1; |
1602 | offset1 = -1; |
1603 | offset2 = -1; |
1604 | } |
cf74a6f1 |
1605 | } |
a0d63196 |
1606 | if(unlikely(size == -1)){ |
1607 | fld->field_fixed = 0; |
1608 | size = 0; |
1609 | }else fld->field_fixed = 1; |
1610 | }else if(likely(fld->field_fixed == 0)){ |
1611 | offset1 = offsetRoot; |
1612 | offset2 = 0; |
1613 | for(i=0;unlikely(i<element_number);i++){ |
1614 | size=getFieldtypeSize(t,evT,offset1,offset2, |
1615 | fld->child[i],evD+offset2, trace); |
1616 | offset1 += size; |
1617 | offset2 += size; |
1618 | } |
1619 | size = offset2; |
1620 | }else size = fld->field_size; |
d37b2aaa |
1621 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
1622 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
a0d63196 |
1623 | break; |
cf74a6f1 |
1624 | |
a0d63196 |
1625 | default: |
1626 | if(unlikely(fld->field_fixed == -1)){ |
1627 | size = (int) ltt_type_size(trace, type); |
1628 | fld->field_fixed = 1; |
1629 | }else size = fld->field_size; |
1630 | if(unlikely(!evD)){ |
1631 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
1632 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
1633 | } |
1634 | break; |
1635 | } |
cf74a6f1 |
1636 | } |
1637 | |
6cd62ccf |
1638 | fld->offset_root = offsetRoot; |
1639 | fld->offset_parent = offsetParent; |
6cd62ccf |
1640 | fld->field_size = size; |
1641 | |
21182d4a |
1642 | end_getFieldtypeSize: |
1643 | |
6cd62ccf |
1644 | return size; |
1645 | } |
1646 | |
6cd62ccf |
1647 | |
1648 | /***************************************************************************** |
1649 | *Function name |
1650 | * getIntNumber : get an integer number |
1651 | *Input params |
1652 | * size : the size of the integer |
1653 | * evD : the event data |
1654 | *Return value |
cf74a6f1 |
1655 | * gint64 : a 64 bits integer |
6cd62ccf |
1656 | ****************************************************************************/ |
1657 | |
0f7f40c1 |
1658 | gint64 getIntNumber(gboolean reverse_byte_order, int size, void *evD) |
6cd62ccf |
1659 | { |
cbd41522 |
1660 | gint64 i; |
cf74a6f1 |
1661 | |
1662 | switch(size) { |
1a2ceb63 |
1663 | case 1: i = *((gint8*)evD); break; |
0f7f40c1 |
1664 | case 2: i = ltt_get_int16(reverse_byte_order, evD); break; |
1665 | case 4: i = ltt_get_int32(reverse_byte_order, evD); break; |
1666 | case 8: i = ltt_get_int64(reverse_byte_order, evD); break; |
1667 | default: i = ltt_get_int64(reverse_byte_order, evD); |
cf74a6f1 |
1668 | g_critical("getIntNumber : integer size %d unknown", size); |
1669 | break; |
1670 | } |
1671 | |
1a2ceb63 |
1672 | return i; |
6cd62ccf |
1673 | } |
0f7f40c1 |
1674 | #if 0 |
6cd62ccf |
1675 | /***************************************************************************** |
1676 | *Function name |
1677 | * getDataEndianType : get the data type size and endian type of the local |
1678 | * machine |
1679 | *Input params |
1680 | * size : size of data type |
1681 | * endian : endian type, little or big |
1682 | ****************************************************************************/ |
1683 | |
963b5f2d |
1684 | void getDataEndianType(LttArchSize * size, LttArchEndian * endian) |
6cd62ccf |
1685 | { |
1686 | int i = 1; |
1687 | char c = (char) i; |
1688 | int sizeInt=sizeof(int), sizeLong=sizeof(long), sizePointer=sizeof(void *); |
1689 | |
1690 | if(c == 1) *endian = LTT_LITTLE_ENDIAN; |
1691 | else *endian = LTT_BIG_ENDIAN; |
1692 | |
1693 | if(sizeInt == 2 && sizeLong == 4 && sizePointer == 4) |
1694 | *size = LTT_LP32; |
1695 | else if(sizeInt == 4 && sizeLong == 4 && sizePointer == 4) |
1696 | *size = LTT_ILP32; |
1697 | else if(sizeInt == 4 && sizeLong == 8 && sizePointer == 8) |
1698 | *size = LTT_LP64; |
1699 | else if(sizeInt == 8 && sizeLong == 8 && sizePointer == 8) |
1700 | *size = LTT_ILP64; |
1701 | else *size = LTT_UNKNOWN; |
1702 | } |
0f7f40c1 |
1703 | #endif //0 |
a5dcde2f |
1704 | /* get the node name of the system */ |
1705 | |
1706 | char * ltt_trace_system_description_node_name (LttSystemDescription * s) |
1707 | { |
1708 | return s->node_name; |
1709 | } |
1710 | |
1711 | |
1712 | /* get the domain name of the system */ |
1713 | |
1714 | char * ltt_trace_system_description_domain_name (LttSystemDescription * s) |
1715 | { |
1716 | return s->domain_name; |
1717 | } |
1718 | |
1719 | |
1720 | /* get the description of the system */ |
1721 | |
1722 | char * ltt_trace_system_description_description (LttSystemDescription * s) |
1723 | { |
1724 | return s->description; |
1725 | } |
1726 | |
1727 | |
1728 | /* get the start time of the trace */ |
1729 | |
1730 | LttTime ltt_trace_system_description_trace_start_time(LttSystemDescription *s) |
1731 | { |
1732 | return s->trace_start; |
1733 | } |
1734 | |
18206708 |
1735 | |
1736 | LttTracefile *ltt_tracefile_new() |
1737 | { |
1738 | return g_new(LttTracefile, 1); |
1739 | } |
1740 | |
1741 | void ltt_tracefile_destroy(LttTracefile *tf) |
1742 | { |
1743 | g_free(tf); |
1744 | } |
1745 | |
1746 | void ltt_tracefile_copy(LttTracefile *dest, const LttTracefile *src) |
1747 | { |
1748 | *dest = *src; |
1749 | } |
1750 | |