449cb9d7 |
1 | /* This file is part of the Linux Trace Toolkit viewer |
3aee1200 |
2 | * Copyright (C) 2005 Mathieu Desnoyers |
449cb9d7 |
3 | * |
3aee1200 |
4 | * Complete rewrite from the original version made by XangXiu Yang. |
5 | * |
449cb9d7 |
6 | * This program is free software; you can redistribute it and/or modify |
7 | * it under the terms of the GNU General Public License Version 2 as |
8 | * published by the Free Software Foundation; |
9 | * |
10 | * This program is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | * GNU General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write to the Free Software |
17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
18 | * MA 02111-1307, USA. |
19 | */ |
20 | |
4e4d11b3 |
21 | #ifdef HAVE_CONFIG_H |
22 | #include <config.h> |
23 | #endif |
24 | |
6cd62ccf |
25 | #include <stdio.h> |
26 | #include <fcntl.h> |
8d1e6362 |
27 | #include <string.h> |
28 | #include <dirent.h> |
6cd62ccf |
29 | #include <sys/stat.h> |
30 | #include <sys/types.h> |
8d1e6362 |
31 | #include <errno.h> |
32 | #include <unistd.h> |
42db9bf1 |
33 | #include <math.h> |
cdf90f40 |
34 | #include <glib.h> |
3aee1200 |
35 | #include <malloc.h> |
36 | #include <sys/mman.h> |
6cd62ccf |
37 | |
ef35d837 |
38 | // For realpath |
39 | #include <limits.h> |
40 | #include <stdlib.h> |
41 | |
42 | |
6cd62ccf |
43 | #include "parser.h" |
a5dcde2f |
44 | #include <ltt/ltt.h> |
45 | #include "ltt-private.h" |
963b5f2d |
46 | #include <ltt/trace.h> |
a5dcde2f |
47 | #include <ltt/facility.h> |
c02ea99f |
48 | #include <ltt/event.h> |
8d1e6362 |
49 | #include <ltt/type.h> |
1a2ceb63 |
50 | #include <ltt/ltt-types.h> |
6cd62ccf |
51 | |
3aee1200 |
52 | |
53 | /* Facility names used in this file */ |
54 | |
55 | GQuark LTT_FACILITY_NAME_HEARTBEAT, |
56 | LTT_EVENT_NAME_HEARTBEAT; |
57 | GQuark LTT_TRACEFILE_NAME_FACILITIES; |
58 | |
86005ded |
59 | #ifndef g_open |
60 | #define g_open open |
61 | #endif |
62 | |
63 | |
51b5991e |
64 | #define __UNUSED__ __attribute__((__unused__)) |
6cd62ccf |
65 | |
a1062ddd |
66 | #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format) |
3aee1200 |
67 | |
68 | #ifndef g_debug |
a1062ddd |
69 | #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format) |
3aee1200 |
70 | #endif |
a1062ddd |
71 | |
45e14832 |
72 | #define g_close close |
8959a0c8 |
73 | |
74 | /* obtain the time of an event */ |
75 | |
76 | static inline LttTime getEventTime(LttTracefile * tf); |
77 | |
78 | |
6cd62ccf |
79 | /* set the offset of the fields belonging to the event, |
80 | need the information of the archecture */ |
3aee1200 |
81 | void set_fields_offsets(LttTracefile *tf, LttEventType *event_type); |
82 | size_t get_fields_offsets(LttTracefile *tf, LttEventType *event_type, void *data); |
6cd62ccf |
83 | |
3aee1200 |
84 | /* get the size of the field type according to |
85 | * The facility size information. */ |
86 | static inline void preset_field_type_size(LttTracefile *tf, |
87 | LttEventType *event_type, |
88 | off_t offset_root, off_t offset_parent, |
89 | enum field_status *fixed_root, enum field_status *fixed_parent, |
90 | LttField *field); |
6cd62ccf |
91 | |
6cd62ccf |
92 | |
3aee1200 |
93 | static inline size_t get_field_type_size(LttTracefile *tf, |
94 | LttEventType *event_type, |
95 | off_t offset_root, off_t offset_parent, |
96 | LttField *field, void *data); |
6cd62ccf |
97 | |
6cd62ccf |
98 | |
3aee1200 |
99 | /* map a fixed size or a block information from the file (fd) */ |
100 | static gint map_block(LttTracefile * tf, guint block_num); |
101 | |
102 | /* calculate nsec per cycles for current block */ |
103 | static double calc_nsecs_per_cycle(LttTracefile * t); |
6cd62ccf |
104 | |
3aee1200 |
105 | /* go to the next event */ |
106 | static int ltt_seek_next_event(LttTracefile *tf); |
6cd62ccf |
107 | |
3aee1200 |
108 | #if 0 |
43da6a59 |
109 | /* Functions to parse system.xml file (using glib xml parser) */ |
51b5991e |
110 | static void parser_start_element (GMarkupParseContext __UNUSED__ *context, |
43da6a59 |
111 | const gchar *element_name, |
112 | const gchar **attribute_names, |
113 | const gchar **attribute_values, |
114 | gpointer user_data, |
115 | GError **error) |
116 | { |
117 | int i=0; |
118 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
119 | if(strcmp("system", element_name)){ |
2a74fbf4 |
120 | *error = g_error_new(G_MARKUP_ERROR, |
121 | G_LOG_LEVEL_WARNING, |
122 | "This is not system.xml file"); |
123 | return; |
43da6a59 |
124 | } |
125 | |
126 | while(attribute_names[i]){ |
127 | if(strcmp("node_name", attribute_names[i])==0){ |
128 | des->node_name = g_strdup(attribute_values[i]); |
129 | }else if(strcmp("domainname", attribute_names[i])==0){ |
130 | des->domain_name = g_strdup(attribute_values[i]); |
131 | }else if(strcmp("cpu", attribute_names[i])==0){ |
132 | des->nb_cpu = atoi(attribute_values[i]); |
133 | }else if(strcmp("arch_size", attribute_names[i])==0){ |
134 | if(strcmp(attribute_values[i],"LP32") == 0) des->size = LTT_LP32; |
135 | else if(strcmp(attribute_values[i],"ILP32") == 0) des->size = LTT_ILP32; |
136 | else if(strcmp(attribute_values[i],"LP64") == 0) des->size = LTT_LP64; |
137 | else if(strcmp(attribute_values[i],"ILP64") == 0) des->size = LTT_ILP64; |
138 | else if(strcmp(attribute_values[i],"UNKNOWN") == 0) des->size = LTT_UNKNOWN; |
139 | }else if(strcmp("endian", attribute_names[i])==0){ |
140 | if(strcmp(attribute_values[i],"LITTLE_ENDIAN") == 0) |
141 | des->endian = LTT_LITTLE_ENDIAN; |
142 | else if(strcmp(attribute_values[i],"BIG_ENDIAN") == 0) |
143 | des->endian = LTT_BIG_ENDIAN; |
144 | }else if(strcmp("kernel_name", attribute_names[i])==0){ |
145 | des->kernel_name = g_strdup(attribute_values[i]); |
146 | }else if(strcmp("kernel_release", attribute_names[i])==0){ |
147 | des->kernel_release = g_strdup(attribute_values[i]); |
148 | }else if(strcmp("kernel_version", attribute_names[i])==0){ |
149 | des->kernel_version = g_strdup(attribute_values[i]); |
150 | }else if(strcmp("machine", attribute_names[i])==0){ |
151 | des->machine = g_strdup(attribute_values[i]); |
152 | }else if(strcmp("processor", attribute_names[i])==0){ |
153 | des->processor = g_strdup(attribute_values[i]); |
154 | }else if(strcmp("hardware_platform", attribute_names[i])==0){ |
155 | des->hardware_platform = g_strdup(attribute_values[i]); |
156 | }else if(strcmp("operating_system", attribute_names[i])==0){ |
157 | des->operating_system = g_strdup(attribute_values[i]); |
158 | }else if(strcmp("ltt_major_version", attribute_names[i])==0){ |
159 | des->ltt_major_version = atoi(attribute_values[i]); |
160 | }else if(strcmp("ltt_minor_version", attribute_names[i])==0){ |
161 | des->ltt_minor_version = atoi(attribute_values[i]); |
162 | }else if(strcmp("ltt_block_size", attribute_names[i])==0){ |
163 | des->ltt_block_size = atoi(attribute_values[i]); |
164 | }else{ |
2a74fbf4 |
165 | *error = g_error_new(G_MARKUP_ERROR, |
166 | G_LOG_LEVEL_WARNING, |
167 | "Not a valid attribute"); |
168 | return; |
43da6a59 |
169 | } |
170 | i++; |
171 | } |
172 | } |
173 | |
51b5991e |
174 | static void parser_characters (GMarkupParseContext __UNUSED__ *context, |
43da6a59 |
175 | const gchar *text, |
51b5991e |
176 | gsize __UNUSED__ text_len, |
43da6a59 |
177 | gpointer user_data, |
51b5991e |
178 | GError __UNUSED__ **error) |
43da6a59 |
179 | { |
180 | LttSystemDescription* des = (LttSystemDescription* )user_data; |
181 | des->description = g_strdup(text); |
182 | } |
3aee1200 |
183 | #endif //0 |
77175651 |
184 | LttFacility *ltt_trace_get_facility_by_num(LttTrace *t, |
3aee1200 |
185 | guint num) |
186 | { |
187 | g_assert(num < t->facilities_by_num->len); |
188 | |
189 | return &g_array_index(t->facilities_by_num, LttFacility, num); |
190 | |
191 | } |
43da6a59 |
192 | |
193 | |
6cd62ccf |
194 | /***************************************************************************** |
195 | *Function name |
963b5f2d |
196 | * ltt_tracefile_open : open a trace file, construct a LttTracefile |
6cd62ccf |
197 | *Input params |
963b5f2d |
198 | * t : the trace containing the tracefile |
199 | * fileName : path name of the trace file |
3aee1200 |
200 | * tf : the tracefile structure |
6cd62ccf |
201 | *Return value |
3aee1200 |
202 | * : 0 for success, -1 otherwise. |
6cd62ccf |
203 | ****************************************************************************/ |
204 | |
3aee1200 |
205 | gint ltt_tracefile_open(LttTrace *t, gchar * fileName, LttTracefile *tf) |
6cd62ccf |
206 | { |
963b5f2d |
207 | struct stat lTDFStat; /* Trace data file status */ |
3aee1200 |
208 | struct ltt_block_start_header *header; |
6cd62ccf |
209 | |
210 | //open the file |
3aee1200 |
211 | tf->name = g_quark_from_string(fileName); |
963b5f2d |
212 | tf->trace = t; |
45e14832 |
213 | tf->fd = g_open(fileName, O_RDONLY, 0); |
6cd62ccf |
214 | if(tf->fd < 0){ |
2a74fbf4 |
215 | g_warning("Unable to open input data file %s\n", fileName); |
3aee1200 |
216 | goto end; |
6cd62ccf |
217 | } |
218 | |
219 | // Get the file's status |
220 | if(fstat(tf->fd, &lTDFStat) < 0){ |
2a74fbf4 |
221 | g_warning("Unable to get the status of the input data file %s\n", fileName); |
3aee1200 |
222 | goto close_file; |
6cd62ccf |
223 | } |
224 | |
225 | // Is the file large enough to contain a trace |
3aee1200 |
226 | if(lTDFStat.st_size < (off_t)(sizeof(struct ltt_block_start_header))){ |
8710c6c7 |
227 | g_print("The input data file %s does not contain a trace\n", fileName); |
3aee1200 |
228 | goto close_file; |
229 | } |
230 | |
231 | /* Temporarily map the buffer start header to get trace information */ |
232 | /* Multiple of pages aligned head */ |
233 | tf->buffer.head = mmap(0, sizeof(struct ltt_block_start_header), PROT_READ, |
234 | MAP_PRIVATE, tf->fd, 0); |
235 | if(tf->buffer.head == NULL) { |
236 | perror("Error in allocating memory for buffer of tracefile"); |
237 | goto close_file; |
6cd62ccf |
238 | } |
3aee1200 |
239 | g_assert(((guint)tf->buffer.head & (8-1)) == 0); // make sure it's aligned. |
240 | |
241 | header = (struct ltt_block_start_header*)tf->buffer.head; |
6cd62ccf |
242 | |
3aee1200 |
243 | if(header->trace.magic_number == LTT_MAGIC_NUMBER) |
244 | tf->reverse_bo = 0; |
245 | else if(header->trace.magic_number == LTT_REV_MAGIC_NUMBER) |
246 | tf->reverse_bo = 1; |
247 | else /* invalid magic number, bad tracefile ! */ |
248 | goto unmap_file; |
249 | |
6cd62ccf |
250 | //store the size of the file |
251 | tf->file_size = lTDFStat.st_size; |
3aee1200 |
252 | tf->block_size = header->buf_size; |
253 | tf->num_blocks = tf->file_size / tf->block_size; |
6cd62ccf |
254 | |
3aee1200 |
255 | vfree(tf->buffer.head); |
256 | tf->buffer.head = NULL; |
6cd62ccf |
257 | |
963b5f2d |
258 | //read the first block |
3aee1200 |
259 | if(map_block(tf,0)) { |
260 | perror("Cannot map block for tracefile"); |
261 | goto close_file; |
262 | } |
263 | |
264 | return 0; |
6cd62ccf |
265 | |
3aee1200 |
266 | /* Error */ |
267 | unmap_file: |
268 | munmap(tf->buffer.head, sizeof(struct ltt_block_start_header)); |
269 | close_file: |
270 | g_close(tf->fd); |
271 | end: |
272 | return -1; |
6cd62ccf |
273 | } |
274 | |
3aee1200 |
275 | #if 0 |
6cd62ccf |
276 | /***************************************************************************** |
963b5f2d |
277 | *Open control and per cpu tracefiles |
6cd62ccf |
278 | ****************************************************************************/ |
279 | |
45e14832 |
280 | void ltt_tracefile_open_cpu(LttTrace *t, gchar * tracefile_name) |
6cd62ccf |
281 | { |
963b5f2d |
282 | LttTracefile * tf; |
283 | tf = ltt_tracefile_open(t,tracefile_name); |
4a6c8e36 |
284 | if(!tf) return; |
963b5f2d |
285 | t->per_cpu_tracefile_number++; |
286 | g_ptr_array_add(t->per_cpu_tracefiles, tf); |
6cd62ccf |
287 | } |
288 | |
45e14832 |
289 | gint ltt_tracefile_open_control(LttTrace *t, gchar * control_name) |
6cd62ccf |
290 | { |
963b5f2d |
291 | LttTracefile * tf; |
c02ea99f |
292 | LttEvent ev; |
963b5f2d |
293 | LttFacility * f; |
963b5f2d |
294 | void * pos; |
295 | FacilityLoad fLoad; |
8d1e6362 |
296 | unsigned int i; |
963b5f2d |
297 | |
298 | tf = ltt_tracefile_open(t,control_name); |
2a74fbf4 |
299 | if(!tf) { |
300 | g_warning("ltt_tracefile_open_control : bad file descriptor"); |
301 | return -1; |
302 | } |
963b5f2d |
303 | t->control_tracefile_number++; |
304 | g_ptr_array_add(t->control_tracefiles,tf); |
305 | |
306 | //parse facilities tracefile to get base_id |
542ceddd |
307 | if(strcmp(&control_name[strlen(control_name)-10],"facilities") ==0){ |
963b5f2d |
308 | while(1){ |
c02ea99f |
309 | if(!ltt_tracefile_read(tf,&ev)) return 0; // end of file |
40331ba8 |
310 | |
c02ea99f |
311 | if(ev.event_id == TRACE_FACILITY_LOAD){ |
312 | pos = ev.data; |
45e14832 |
313 | fLoad.name = (gchar*)pos; |
47a166fc |
314 | fLoad.checksum = *(LttChecksum*)(pos + strlen(fLoad.name)); |
cbd41522 |
315 | fLoad.base_code = *(guint32 *)(pos + strlen(fLoad.name) + sizeof(LttChecksum)); |
963b5f2d |
316 | |
317 | for(i=0;i<t->facility_number;i++){ |
318 | f = (LttFacility*)g_ptr_array_index(t->facilities,i); |
319 | if(strcmp(f->name,fLoad.name)==0 && fLoad.checksum==f->checksum){ |
320 | f->base_id = fLoad.base_code; |
321 | break; |
322 | } |
323 | } |
2a74fbf4 |
324 | if(i==t->facility_number) { |
8d1e6362 |
325 | g_warning("Facility: %s, checksum: %u is not found", |
326 | fLoad.name,(unsigned int)fLoad.checksum); |
2a74fbf4 |
327 | return -1; |
328 | } |
c02ea99f |
329 | }else if(ev.event_id == TRACE_BLOCK_START){ |
40331ba8 |
330 | continue; |
c02ea99f |
331 | }else if(ev.event_id == TRACE_BLOCK_END){ |
40331ba8 |
332 | break; |
2a74fbf4 |
333 | }else { |
8d1e6362 |
334 | g_warning("Not valid facilities trace file"); |
2a74fbf4 |
335 | return -1; |
336 | } |
963b5f2d |
337 | } |
338 | } |
2a74fbf4 |
339 | return 0; |
6cd62ccf |
340 | } |
3aee1200 |
341 | #endif //0 |
6cd62ccf |
342 | |
343 | /***************************************************************************** |
344 | *Function name |
963b5f2d |
345 | * ltt_tracefile_close: close a trace file, |
6cd62ccf |
346 | *Input params |
963b5f2d |
347 | * t : tracefile which will be closed |
6cd62ccf |
348 | ****************************************************************************/ |
349 | |
963b5f2d |
350 | void ltt_tracefile_close(LttTracefile *t) |
6cd62ccf |
351 | { |
3aee1200 |
352 | if(t->buffer.head != NULL) |
353 | munmap(t->buffer.head, t->buf_size); |
354 | g_close(t->fd); |
963b5f2d |
355 | } |
6cd62ccf |
356 | |
6cd62ccf |
357 | |
963b5f2d |
358 | /***************************************************************************** |
359 | *Get system information |
360 | ****************************************************************************/ |
3aee1200 |
361 | #if 0 |
45e14832 |
362 | gint getSystemInfo(LttSystemDescription* des, gchar * pathname) |
963b5f2d |
363 | { |
45e14832 |
364 | int fd; |
365 | GIOChannel *iochan; |
366 | gchar *buf = NULL; |
367 | gsize length; |
43da6a59 |
368 | |
369 | GMarkupParseContext * context; |
2a74fbf4 |
370 | GError * error = NULL; |
43da6a59 |
371 | GMarkupParser markup_parser = |
372 | { |
373 | parser_start_element, |
8d1e6362 |
374 | NULL, |
43da6a59 |
375 | parser_characters, |
376 | NULL, /* passthrough */ |
377 | NULL /* error */ |
378 | }; |
963b5f2d |
379 | |
45e14832 |
380 | fd = g_open(pathname, O_RDONLY, 0); |
381 | if(fd == -1){ |
2a74fbf4 |
382 | g_warning("Can not open file : %s\n", pathname); |
383 | return -1; |
6cd62ccf |
384 | } |
963b5f2d |
385 | |
45e14832 |
386 | iochan = g_io_channel_unix_new(fd); |
387 | |
43da6a59 |
388 | context = g_markup_parse_context_new(&markup_parser, 0, des,NULL); |
6cd62ccf |
389 | |
45e14832 |
390 | //while(fgets(buf,DIR_NAME_SIZE, fp) != NULL){ |
391 | while(g_io_channel_read_line(iochan, &buf, &length, NULL, &error) |
392 | != G_IO_STATUS_EOF) { |
393 | |
394 | if(error != NULL) { |
395 | g_warning("Can not read xml file: \n%s\n", error->message); |
396 | g_error_free(error); |
397 | } |
398 | if(!g_markup_parse_context_parse(context, buf, length, &error)){ |
2a74fbf4 |
399 | if(error != NULL) { |
400 | g_warning("Can not parse xml file: \n%s\n", error->message); |
401 | g_error_free(error); |
402 | } |
403 | g_markup_parse_context_free(context); |
45e14832 |
404 | |
405 | g_io_channel_shutdown(iochan, FALSE, &error); /* No flush */ |
406 | if(error != NULL) { |
407 | g_warning("Can not close file: \n%s\n", error->message); |
408 | g_error_free(error); |
409 | } |
410 | |
411 | close(fd); |
2a74fbf4 |
412 | return -1; |
43da6a59 |
413 | } |
963b5f2d |
414 | } |
2a74fbf4 |
415 | g_markup_parse_context_free(context); |
45e14832 |
416 | |
417 | g_io_channel_shutdown(iochan, FALSE, &error); /* No flush */ |
418 | if(error != NULL) { |
419 | g_warning("Can not close file: \n%s\n", error->message); |
420 | g_error_free(error); |
421 | } |
422 | |
423 | g_close(fd); |
424 | |
425 | g_free(buf); |
2a74fbf4 |
426 | return 0; |
6cd62ccf |
427 | } |
3aee1200 |
428 | #endif //0 |
6cd62ccf |
429 | |
430 | /***************************************************************************** |
963b5f2d |
431 | *The following functions get facility/tracefile information |
6cd62ccf |
432 | ****************************************************************************/ |
3aee1200 |
433 | #if 0 |
45e14832 |
434 | gint getFacilityInfo(LttTrace *t, gchar* eventdefs) |
6cd62ccf |
435 | { |
45e14832 |
436 | GDir * dir; |
437 | const gchar * name; |
8d1e6362 |
438 | unsigned int i,j; |
963b5f2d |
439 | LttFacility * f; |
440 | LttEventType * et; |
45e14832 |
441 | gchar fullname[DIR_NAME_SIZE]; |
442 | GError * error = NULL; |
443 | |
444 | dir = g_dir_open(eventdefs, 0, &error); |
963b5f2d |
445 | |
45e14832 |
446 | if(error != NULL) { |
447 | g_warning("Can not open directory: %s, %s\n", eventdefs, error->message); |
448 | g_error_free(error); |
2a74fbf4 |
449 | return -1; |
450 | } |
963b5f2d |
451 | |
45e14832 |
452 | while((name = g_dir_read_name(dir)) != NULL){ |
453 | if(!g_pattern_match_simple("*.xml", name)) continue; |
454 | strcpy(fullname,eventdefs); |
455 | strcat(fullname,name); |
456 | ltt_facility_open(t,fullname); |
457 | } |
458 | g_dir_close(dir); |
963b5f2d |
459 | |
963b5f2d |
460 | for(j=0;j<t->facility_number;j++){ |
8710c6c7 |
461 | f = (LttFacility*)g_ptr_array_index(t->facilities, j); |
963b5f2d |
462 | for(i=0; i<f->event_number; i++){ |
463 | et = f->events[i]; |
40331ba8 |
464 | setFieldsOffset(NULL, et, NULL, t); |
963b5f2d |
465 | } |
466 | } |
2a74fbf4 |
467 | return 0; |
963b5f2d |
468 | } |
3aee1200 |
469 | #endif //0 |
6cd62ccf |
470 | |
963b5f2d |
471 | /***************************************************************************** |
472 | *A trace is specified as a pathname to the directory containing all the |
473 | *associated data (control tracefiles, per cpu tracefiles, event |
474 | *descriptions...). |
475 | * |
476 | *When a trace is closed, all the associated facilities, types and fields |
477 | *are released as well. |
8d1e6362 |
478 | */ |
479 | |
480 | |
481 | /**************************************************************************** |
482 | * get_absolute_pathname |
803229fa |
483 | * |
8d1e6362 |
484 | * return the unique pathname in the system |
485 | * |
ef35d837 |
486 | * MD : Fixed this function so it uses realpath, dealing well with |
487 | * forgotten cases (.. were not used correctly before). |
803229fa |
488 | * |
963b5f2d |
489 | ****************************************************************************/ |
45e14832 |
490 | void get_absolute_pathname(const gchar *pathname, gchar * abs_pathname) |
9f797243 |
491 | { |
9f797243 |
492 | abs_pathname[0] = '\0'; |
803229fa |
493 | |
ef35d837 |
494 | if ( realpath (pathname, abs_pathname) != NULL) |
495 | return; |
496 | else |
497 | { |
8d1e6362 |
498 | /* error, return the original path unmodified */ |
ef35d837 |
499 | strcpy(abs_pathname, pathname); |
9f797243 |
500 | return; |
501 | } |
ef35d837 |
502 | return; |
9f797243 |
503 | } |
504 | |
3aee1200 |
505 | /* Search for something like : .*_.* |
506 | * |
507 | * The left side is the name, the right side is the number. |
508 | */ |
509 | |
510 | int get_tracefile_name_number(const gchar *raw_name, |
511 | GQuark *name, |
512 | guint *num) |
6cd62ccf |
513 | { |
3aee1200 |
514 | guint raw_name_len = strlen(raw_name); |
515 | gchar char_name[PATH_MAX]; |
516 | gchar *digit_begin; |
517 | int i; |
518 | int underscore_pos; |
519 | long int cpu_num; |
520 | gchar *endptr; |
521 | |
522 | for(i=raw_name_len-1;i>=0;i--) { |
523 | if(raw_name[i] == '_') break; |
524 | } |
525 | if(i==0) /* Either not found or name length is 0 */ |
526 | return -1; |
527 | underscore_pos = i; |
963b5f2d |
528 | |
3aee1200 |
529 | cpu_num = strtol(raw_name+underscore_pos+1, &endptr, 10); |
530 | |
531 | if(endptr == raw_name+underscore_pos+1) |
532 | return -1; /* No digit */ |
533 | if(cpu_num == LONG_MIN || cpu_num == LONG_MAX) |
534 | return -1; /* underflow / overflow */ |
1a2ceb63 |
535 | |
3aee1200 |
536 | strncpy(char_name, raw_name, underscore_pos); |
1a2ceb63 |
537 | |
3aee1200 |
538 | *name = g_quark_from_string(char_name); |
539 | *num = cpu_num; |
b333a76b |
540 | |
3aee1200 |
541 | return 0; |
542 | } |
963b5f2d |
543 | |
3aee1200 |
544 | |
77175651 |
545 | GData *ltt_trace_get_tracefiles_groups(LttTrace *trace) |
546 | { |
547 | return trace->tracefiles; |
548 | } |
549 | |
550 | |
551 | void compute_tracefile_group(GArray *group, |
552 | struct compute_tracefile_group_args args) |
553 | { |
554 | int i; |
555 | LttTracefile *tf; |
556 | |
557 | for(i=0; i<group->len; i++) { |
558 | tf = &g_array_index (group, LttTracefile, i); |
559 | if(tf->cpu_online) |
560 | args.func(tf, args.func_args); |
561 | } |
562 | } |
563 | |
564 | |
3aee1200 |
565 | void ltt_tracefile_group_destroy(gpointer data) |
566 | { |
567 | GArray *group = (GArray *)data; |
568 | int i; |
569 | LttTracefile *tf; |
570 | |
571 | for(i=0; i<group->len; i++) { |
572 | tf = &g_array_index (group, LttTracefile, i); |
573 | if(tf->cpu_online) |
574 | ltt_tracefile_close(tf); |
575 | } |
576 | g_array_free(group, TRUE); |
6cd62ccf |
577 | } |
578 | |
3aee1200 |
579 | gboolean ltt_tracefile_group_has_cpu_online(gpointer data) |
49bf71b5 |
580 | { |
3aee1200 |
581 | GArray *group = (GArray *)data; |
582 | int i; |
583 | LttTracefile *tf; |
584 | |
585 | for(i=0; i<group->len; i++) { |
586 | tf = &g_array_index (group, LttTracefile, i); |
587 | if(tf->cpu_online) return 1; |
588 | } |
589 | return 0; |
49bf71b5 |
590 | } |
591 | |
592 | |
3aee1200 |
593 | /* Open each tracefile under a specific directory. Put them in a |
594 | * GData : permits to access them using their tracefile group pathname. |
595 | * i.e. access control/modules tracefile group by index : |
596 | * "control/module". |
597 | * |
598 | * A tracefile group is simply an array where all the per cpu tracefiles sits. |
599 | */ |
600 | |
601 | static int open_tracefiles(LttTrace *trace, char *root_path, GData *tracefiles) |
f7afe191 |
602 | { |
3aee1200 |
603 | DIR *dir = opendir(root_path); |
604 | struct dirent *entry; |
605 | struct stat stat_buf; |
606 | int ret; |
607 | char path[PATH_MAX]; |
608 | int path_len; |
609 | char *path_ptr; |
610 | |
611 | if(dir == NULL) { |
612 | perror(root_path); |
613 | return ENOENT; |
614 | } |
615 | |
616 | strncpy(path, root_path, PATH_MAX-1); |
617 | path_len = strlen(path); |
618 | path[path_len] = '/'; |
619 | path_len++; |
620 | path_ptr = path + path_len; |
621 | |
622 | while((entry = readdir(dir)) != NULL) { |
623 | |
624 | if(entry->d_name[0] == '.') continue; |
625 | |
626 | strncpy(path_ptr, entry->d_name, PATH_MAX - path_len); |
627 | |
628 | ret = stat(path, &stat_buf); |
629 | if(ret == -1) { |
630 | perror(path); |
631 | continue; |
632 | } |
633 | |
634 | g_debug("Tracefile file or directory : %s\n", path); |
635 | |
636 | if(S_ISDIR(stat_buf.st_mode)) { |
637 | |
638 | g_debug("Entering subdirectory...\n"); |
639 | ret = open_tracefiles(trace, path, tracefiles); |
640 | if(ret < 0) continue; |
641 | } else if(S_ISREG(stat_buf.st_mode)) { |
642 | g_debug("Opening file.\n"); |
643 | |
644 | GQuark name; |
645 | guint num; |
646 | GArray *group; |
647 | LttTracefile *tf; |
648 | guint len; |
649 | |
650 | if(get_tracefile_name_number(path, &name, &num)) |
651 | continue; /* invalid name */ |
652 | |
653 | group = g_datalist_id_get_data(&tracefiles, name); |
654 | if(group == NULL) { |
655 | /* Elements are automatically cleared when the array is allocated. |
656 | * It makes the cpu_online variable set to 0 : cpu offline, by default. |
657 | */ |
658 | group = g_array_sized_new (FALSE, TRUE, sizeof(LttTracefile), 10); |
659 | g_datalist_id_set_data_full(&tracefiles, name, |
660 | group, ltt_tracefile_group_destroy); |
661 | } |
662 | /* Add the per cpu tracefile to the named group */ |
663 | unsigned int old_len = group->len; |
664 | if(num+1 > old_len) |
665 | group = g_array_set_size(group, num+1); |
666 | tf = &g_array_index (group, LttTracefile, num); |
667 | |
668 | if(ltt_tracefile_open(trace, path, tf)) { |
669 | g_info("Error opening tracefile %s", path); |
670 | g_array_set_size(group, old_len); |
671 | |
672 | if(!ltt_tracefile_group_has_cpu_online(group)) |
673 | g_datalist_id_remove_data(&tracefiles, name); |
674 | |
675 | continue; /* error opening the tracefile : bad magic number ? */ |
676 | } |
677 | tf->cpu_online = 1; |
678 | tf->cpu_num = num; |
679 | } |
680 | } |
681 | |
682 | closedir(dir); |
683 | |
684 | return 0; |
f7afe191 |
685 | } |
686 | |
3aee1200 |
687 | /* ltt_get_facility_description |
688 | * |
689 | * Opens the trace corresponding to the requested facility (identified by fac_id |
690 | * and checksum). |
691 | * |
692 | * The name searched is : %trace root%/eventdefs/facname_checksum.xml |
693 | * |
694 | * Returns 0 on success, or 1 on failure. |
695 | */ |
696 | |
697 | static int ltt_get_facility_description(LttFacility *f, |
698 | LttTrace *t, |
699 | LttTracefile *fac_tf) |
6cd62ccf |
700 | { |
3aee1200 |
701 | char desc_file_name[PATH_MAX]; |
702 | const gchar *text; |
703 | guint textlen; |
704 | gint err; |
705 | int i, j; |
706 | LttEventType *et; |
707 | |
708 | text = g_quark_to_string(t->pathname); |
709 | textlen = strlen(text); |
710 | |
711 | if(textlen >= PATH_MAX) goto name_error; |
712 | strcpy(desc_file_name, text); |
713 | |
714 | text = "/eventdefs/"; |
715 | textlen+=strlen(text); |
716 | if(textlen >= PATH_MAX) goto name_error; |
717 | strcat(desc_file_name, text); |
718 | |
719 | text = g_quark_to_string(f->name); |
720 | textlen+=strlen(text); |
721 | if(textlen >= PATH_MAX) goto name_error; |
722 | strcat(desc_file_name, text); |
723 | |
724 | text = "_"; |
725 | textlen+=strlen(text); |
726 | if(textlen >= PATH_MAX) goto name_error; |
727 | strcat(desc_file_name, text); |
963b5f2d |
728 | |
3aee1200 |
729 | err = snprintf(desc_file_name+textlen, PATH_MAX-textlen-1, |
730 | "%u", f->checksum); |
731 | if(err) goto name_error; |
732 | |
733 | textlen=strlen(desc_file_name); |
734 | |
735 | text = ".xml"; |
736 | textlen+=strlen(text); |
737 | if(textlen >= PATH_MAX) goto name_error; |
738 | strcat(desc_file_name, text); |
963b5f2d |
739 | |
3aee1200 |
740 | err = ltt_facility_open(f, t, desc_file_name); |
741 | if(err) goto facility_error; |
742 | |
743 | for(i=0;i<t->facilities_by_num->len;i++){ |
744 | f = &g_array_index(t->facilities_by_num, LttFacility, i); |
745 | if(f->exists) { |
746 | for(j=0; j<f->events->len; j++){ |
747 | et = &g_array_index(f->events, LttEventType, j); |
748 | set_fields_offsets(fac_tf, et); |
749 | } |
750 | } |
963b5f2d |
751 | } |
963b5f2d |
752 | |
3aee1200 |
753 | |
754 | return 0; |
755 | |
756 | facility_error: |
757 | name_error: |
758 | return 1; |
759 | } |
760 | |
761 | static void ltt_fac_ids_destroy(gpointer data) |
762 | { |
763 | GArray *fac_ids = (GArray *)data; |
764 | int i; |
765 | LttFacility *fac; |
766 | |
767 | for(i=0; i<fac_ids->len; i++) { |
768 | fac = &g_array_index (fac_ids, LttFacility, i); |
769 | ltt_facility_close(fac); |
963b5f2d |
770 | } |
963b5f2d |
771 | |
3aee1200 |
772 | g_array_free(fac_ids, TRUE); |
773 | } |
774 | |
775 | |
776 | /* Presumes the tracefile is already seeked at the beginning. It makes sense, |
777 | * because it must be done just after the opening */ |
778 | static int ltt_process_facility_tracefile(LttTracefile *tf) |
779 | { |
780 | int err; |
781 | LttFacility *fac; |
782 | GArray *fac_ids; |
783 | |
784 | while(1) { |
785 | err = ltt_tracefile_read_seek(tf); |
786 | if(err == EPERM) goto seek_error; |
787 | else if(err == ERANGE) break; /* End of tracefile */ |
788 | |
789 | err = ltt_tracefile_read_update_event(tf); |
790 | if(err) goto update_error; |
791 | |
792 | /* We are on a facility load/or facility unload/ or heartbeat event */ |
793 | /* The rules are : |
794 | * * facility 0 is hardcoded : this is the core facility. It will be shown |
795 | * in the facility array though, and is shown as "loaded builtin" in the |
796 | * trace. |
797 | * It contains event : |
798 | * 0 : facility load |
799 | * 1 : facility unload |
800 | * 2 : state dump facility load |
801 | * Facility 1 : (heartbeat) |
802 | * 0 : heartbeat |
803 | */ |
804 | if(tf->event.facility_id > 1) { /* Should only contain core and heartbeat |
805 | facilities */ |
806 | g_warning("Error in processing facility file %s, " |
807 | "should not contain facility id %u.", g_quark_to_string(tf->name), |
808 | tf->event.facility_id); |
809 | err = EPERM; |
810 | goto fac_id_error; |
811 | } else if(tf->event.facility_id == LTT_FACILITY_CORE) { |
812 | |
813 | struct LttFacilityLoad *fac_load_data; |
814 | char *fac_name; |
815 | |
816 | // FIXME align |
817 | switch((enum ltt_core_events)tf->event.event_id) { |
818 | case LTT_EVENT_FACILITY_LOAD: |
819 | fac_load_data = |
820 | (struct LttFacilityLoad *)tf->event.data; |
821 | fac_name = |
822 | (char*)(tf->event.data + sizeof(struct LttFacilityLoad)); |
823 | fac = &g_array_index (tf->trace->facilities_by_num, LttFacility, |
824 | ltt_get_uint32(LTT_GET_BO(tf), &fac_load_data->id)); |
825 | g_assert(fac->exists == 0); |
826 | fac->name = g_quark_from_string(fac_name); |
827 | fac->checksum = ltt_get_uint32(LTT_GET_BO(tf), |
828 | &fac_load_data->checksum); |
829 | fac->id = ltt_get_uint32(LTT_GET_BO(tf), &fac_load_data->id); |
830 | fac->pointer_size = ltt_get_uint32(LTT_GET_BO(tf), |
831 | &fac_load_data->pointer_size); |
832 | fac->size_t_size = ltt_get_uin32(LTT_GET_BO(tf), |
833 | &fac_load_data->size_t_size); |
834 | fac->alignment = ltt_get_uint32(LTT_GET_BO(tf), |
835 | &fac_load_data->alignment); |
836 | |
837 | if(ltt_get_facility_description(fac, tf->trace, tf)) |
838 | goto facility_error; |
839 | |
840 | fac->trace = tf->trace; |
841 | fac->exists = 1; |
842 | |
77175651 |
843 | fac_ids = g_datalist_id_get_data(&tf->trace->facilities_by_name, |
844 | fac->name); |
3aee1200 |
845 | if(fac_ids == NULL) { |
846 | fac_ids = g_array_sized_new (FALSE, TRUE, sizeof(guint), 1); |
847 | g_datalist_id_set_data_full(&tf->trace->facilities_by_name, |
848 | fac->name, |
849 | fac_ids, ltt_fac_ids_destroy); |
850 | } |
851 | g_array_append_val(fac_ids, fac->id); |
852 | |
853 | break; |
854 | case LTT_EVENT_FACILITY_UNLOAD: |
855 | /* We don't care about unload : facilities ID are valid for the whole |
856 | * trace. They simply won't be used after the unload. */ |
857 | break; |
858 | case LTT_EVENT_STATE_DUMP_FACILITY_LOAD: |
859 | fac_load_data = |
860 | (struct LttFacilityLoad *)tf->event.data; |
861 | fac_name = |
862 | (char*)(tf->event.data + sizeof(struct LttFacilityLoad)); |
863 | fac = &g_array_index (tf->trace->facilities_by_num, LttFacility, |
864 | ltt_get_uint32(LTT_GET_BO(tf), &fac_load_data->id)); |
865 | g_assert(fac->exists == 0); |
866 | fac->name = g_quark_from_string(fac_name); |
867 | fac->checksum = ltt_get_uint32(LTT_GET_BO(tf), |
868 | &fac_load_data->checksum); |
869 | fac->id = ltt_get_uint8(LTT_GET_BO(tf), &fac_load_data->id); |
870 | fac->pointer_size = ltt_get_uint32(LTT_GET_BO(tf), |
871 | &fac_load_data->pointer_size); |
872 | fac->size_t_size = ltt_get_uin32(LTT_GET_BO(tf), |
873 | &fac_load_data->size_t_size); |
874 | fac->alignment = ltt_get_uint32(LTT_GET_BO(tf), |
875 | &fac_load_data->alignment); |
876 | if(ltt_get_facility_description(fac, tf->trace, tf)) |
877 | goto facility_error; |
878 | |
879 | fac->trace = tf->trace; |
880 | |
881 | fac->exists = 1; |
882 | |
883 | fac_ids = g_datalist_id_get_data(&tf->trace->facilities_by_name, |
884 | fac->name); |
885 | if(fac_ids == NULL) { |
886 | fac_ids = g_array_sized_new (FALSE, TRUE, sizeof(guint), 1); |
887 | g_datalist_id_set_data_full(&tf->trace->facilities_by_name, |
888 | fac->name, |
889 | fac_ids, ltt_fac_ids_destroy); |
890 | } |
891 | g_array_append_val(fac_ids, fac->id); |
892 | |
893 | break; |
894 | case LTT_EVENT_HEARTBEAT: |
895 | break; |
896 | default: |
897 | g_warning("Error in processing facility file %s, " |
898 | "unknown event id %hhu in core facility.", |
899 | g_quark_to_string(tf->name), |
900 | tf->event.event_id); |
901 | err = EPERM; |
902 | goto event_id_error; |
903 | } |
904 | } |
963b5f2d |
905 | } |
3aee1200 |
906 | return 0; |
963b5f2d |
907 | |
3aee1200 |
908 | /* Error handling */ |
909 | facility_error: |
910 | event_id_error: |
911 | fac_id_error: |
912 | update_error: |
913 | seek_error: |
914 | return err; |
6cd62ccf |
915 | } |
916 | |
963b5f2d |
917 | |
3aee1200 |
918 | LttTrace *ltt_trace_open(const gchar *pathname) |
919 | { |
920 | gchar abs_path[PATH_MAX]; |
921 | LttTrace * t; |
922 | LttTracefile *tf; |
923 | GArray *group; |
924 | int i; |
925 | |
926 | t = g_new(LttTrace, 1); |
927 | if(!t) goto alloc_error; |
928 | |
929 | get_absolute_pathname(pathname, abs_path); |
930 | t->pathname = g_quark_from_string(abs_path); |
931 | |
932 | /* Open all the tracefiles */ |
933 | g_datalist_init(&t->tracefiles); |
934 | if(open_tracefiles(t, abs_path, t->tracefiles)) |
935 | goto open_error; |
936 | |
937 | /* Prepare the facilities containers : array and mapping */ |
938 | /* Array is zeroed : the "exists" field is set to false by default */ |
939 | t->facilities_by_num = g_array_sized_new (FALSE, |
940 | TRUE, sizeof(LttFacility), |
941 | NUM_FACILITIES); |
942 | t->facilities_by_num = g_array_set_size(t->facilities_by_num, NUM_FACILITIES); |
943 | |
944 | g_datalist_init(&t->facilities_by_name); |
945 | |
946 | /* Parse each trace control/facilitiesN files : get runtime fac. info */ |
947 | group = g_datalist_id_get_data(&t->tracefiles, LTT_TRACEFILE_NAME_FACILITIES); |
948 | if(group == NULL) { |
949 | g_error("Trace %s has no facility tracefile", abs_path); |
950 | goto facilities_error; |
951 | } |
952 | |
953 | for(i=0; i<group->len; i++) { |
954 | tf = &g_array_index (group, LttTracefile, i); |
955 | if(ltt_process_facility_tracefile(tf)) |
956 | goto facilities_error; |
957 | } |
958 | |
959 | |
960 | |
961 | return t; |
962 | |
963 | /* Error handling */ |
964 | facilities_error: |
965 | g_datalist_clear(&t->facilities_by_name); |
966 | g_array_free(t->facilities_by_num, TRUE); |
967 | open_error: |
968 | g_datalist_clear(&t->tracefiles); |
969 | g_free(t); |
970 | alloc_error: |
971 | return NULL; |
972 | |
973 | } |
6cd62ccf |
974 | |
3aee1200 |
975 | GQuark ltt_trace_name(LttTrace *t) |
6cd62ccf |
976 | { |
3aee1200 |
977 | return t->pathname; |
6cd62ccf |
978 | } |
979 | |
6cd62ccf |
980 | |
3aee1200 |
981 | /****************************************************************************** |
982 | * When we copy a trace, we want all the opening actions to happen again : |
983 | * the trace will be reopened and totally independant from the original. |
984 | * That's why we call ltt_trace_open. |
985 | *****************************************************************************/ |
986 | LttTrace *ltt_trace_copy(LttTrace *self) |
963b5f2d |
987 | { |
3aee1200 |
988 | return ltt_trace_open(g_quark_to_string(self->pathname)); |
963b5f2d |
989 | } |
990 | |
3aee1200 |
991 | void ltt_trace_close(LttTrace *t) |
6cd62ccf |
992 | { |
3aee1200 |
993 | g_datalist_clear(&t->facilities_by_name); |
994 | g_array_free(t->facilities_by_num, TRUE); |
995 | g_datalist_clear(&t->tracefiles); |
996 | g_free(t); |
6cd62ccf |
997 | } |
998 | |
3aee1200 |
999 | |
6cd62ccf |
1000 | /***************************************************************************** |
3aee1200 |
1001 | *Get the system description of the trace |
6cd62ccf |
1002 | ****************************************************************************/ |
1003 | |
3aee1200 |
1004 | LttFacility *ltt_trace_facility_by_id(LttTrace *t, guint8 id) |
6cd62ccf |
1005 | { |
3aee1200 |
1006 | g_assert(id < t->facilities_by_num->len); |
1007 | return &g_array_index(t->facilities_by_num, LttFacility, id); |
1008 | } |
1009 | |
1010 | /* ltt_trace_facility_get_by_name |
1011 | * |
1012 | * Returns the GArray of facility indexes. All the fac_ids that matches the |
1013 | * requested facility name. |
1014 | * |
1015 | * If name is not found, returns NULL. |
1016 | */ |
1017 | GArray *ltt_trace_facility_get_by_name(LttTrace *t, GQuark name) |
1018 | { |
1019 | return g_datalist_id_get_data(&t->facilities_by_name, name); |
6cd62ccf |
1020 | } |
1021 | |
1022 | /***************************************************************************** |
963b5f2d |
1023 | * Functions to discover all the event types in the trace |
6cd62ccf |
1024 | ****************************************************************************/ |
1025 | |
3aee1200 |
1026 | #if 0 |
963b5f2d |
1027 | unsigned ltt_trace_eventtype_number(LttTrace *t) |
6cd62ccf |
1028 | { |
8d1e6362 |
1029 | unsigned int i; |
963b5f2d |
1030 | unsigned count = 0; |
dc1cad90 |
1031 | unsigned int num = t->facility_number; |
963b5f2d |
1032 | LttFacility * f; |
dc1cad90 |
1033 | |
1034 | for(i=0;i<num;i++){ |
963b5f2d |
1035 | f = (LttFacility*)g_ptr_array_index(t->facilities, i); |
1036 | count += f->event_number; |
1037 | } |
1038 | return count; |
6cd62ccf |
1039 | } |
3aee1200 |
1040 | #endif //0 |
6cd62ccf |
1041 | |
3aee1200 |
1042 | #if 0 |
1043 | //use an iteration on all the trace facilities, and inside iteration on all the |
1044 | //event types in each facilities instead. |
963b5f2d |
1045 | LttEventType *ltt_trace_eventtype_get(LttTrace *t, unsigned evId) |
6cd62ccf |
1046 | { |
6e8c19d4 |
1047 | LttEventType *event_type; |
1048 | |
963b5f2d |
1049 | LttFacility * f; |
1050 | f = ltt_trace_facility_by_id(t,evId); |
6e8c19d4 |
1051 | |
1052 | if(unlikely(!f)) event_type = NULL; |
1053 | else event_type = f->events[evId - f->base_id]; |
1054 | |
1055 | return event_type; |
6cd62ccf |
1056 | } |
3aee1200 |
1057 | #endif //0 |
6cd62ccf |
1058 | |
3aee1200 |
1059 | #if 0 |
6cd62ccf |
1060 | /***************************************************************************** |
3aee1200 |
1061 | * ltt_trace_find_tracefile |
1062 | * |
1063 | * Find a tracefile by name and index in the group. |
1064 | * |
1065 | * Returns a pointer to the tracefiles, else NULL. |
6cd62ccf |
1066 | ****************************************************************************/ |
6cd62ccf |
1067 | |
3aee1200 |
1068 | LttTracefile *ltt_trace_find_tracefile(LttTrace *t, const gchar *name) |
6cd62ccf |
1069 | { |
6cd62ccf |
1070 | } |
3aee1200 |
1071 | #endif //0 |
6cd62ccf |
1072 | |
1073 | /***************************************************************************** |
3aee1200 |
1074 | * Get the start time and end time of the trace |
6cd62ccf |
1075 | ****************************************************************************/ |
1076 | |
3aee1200 |
1077 | static void ltt_tracefile_time_span_get(LttTracefile *tf, |
1078 | LttTime *start, LttTime *end) |
6cd62ccf |
1079 | { |
3aee1200 |
1080 | struct ltt_block_start_header * header; |
1081 | int err; |
6cd62ccf |
1082 | |
3aee1200 |
1083 | err = map_block(tf, 0); |
1084 | if(unlikely(err)) { |
1085 | g_error("Can not map block"); |
1086 | *start = ltt_time_infinite; |
1087 | } else |
1088 | *start = tf->buffer.begin.timestamp; |
1089 | |
1090 | err = map_block(tf, tf->num_blocks - 1); /* Last block */ |
1091 | if(unlikely(err)) { |
1092 | g_error("Can not map block"); |
1093 | *end = ltt_time_zero; |
1094 | } else |
1095 | *end = tf->buffer.end.timestamp; |
6cd62ccf |
1096 | } |
1097 | |
3aee1200 |
1098 | struct tracefile_time_span_get_args { |
1099 | LttTrace *t; |
1100 | LttTime *start; |
1101 | LttTime *end; |
1102 | }; |
963b5f2d |
1103 | |
3aee1200 |
1104 | static void group_time_span_get(GQuark name, gpointer data, gpointer user_data) |
963b5f2d |
1105 | { |
3aee1200 |
1106 | struct tracefile_time_span_get_args *args = |
1107 | (struct tracefile_time_span_get_args*)user_data; |
1108 | |
1109 | GArray *group = (GArray *)data; |
1110 | int i; |
1111 | LttTracefile *tf; |
1112 | LttTime tmp_start; |
1113 | LttTime tmp_end; |
1114 | |
1115 | for(i=0; i<group->len; i++) { |
1116 | tf = &g_array_index (group, LttTracefile, i); |
1117 | if(tf->cpu_online) { |
1118 | ltt_tracefile_time_span_get(tf, &tmp_start, &tmp_end); |
1119 | if(ltt_time_compare(*args->start, tmp_start)>0) *args->start = tmp_start; |
1120 | if(ltt_time_compare(*args->end, tmp_end)<0) *args->end = tmp_end; |
1121 | } |
1122 | } |
6cd62ccf |
1123 | } |
1124 | |
487ad181 |
1125 | void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end) |
1126 | { |
3aee1200 |
1127 | LttTime min_start = ltt_time_infinite; |
1128 | LttTime max_end = ltt_time_zero; |
1129 | struct tracefile_time_span_get_args args = { t, &min_start, &max_end }; |
487ad181 |
1130 | |
3aee1200 |
1131 | g_datalist_foreach(&t->tracefiles, &group_time_span_get, &args); |
1132 | |
1133 | if(start != NULL) *start = min_start; |
1134 | if(end != NULL) *end = max_end; |
1135 | |
487ad181 |
1136 | } |
1137 | |
1138 | |
6cd62ccf |
1139 | /***************************************************************************** |
963b5f2d |
1140 | *Get the name of a tracefile |
6cd62ccf |
1141 | ****************************************************************************/ |
1142 | |
3aee1200 |
1143 | GQuark ltt_tracefile_name(LttTracefile *tf) |
6cd62ccf |
1144 | { |
963b5f2d |
1145 | return tf->name; |
6cd62ccf |
1146 | } |
1147 | |
80da81ad |
1148 | /***************************************************************************** |
1149 | * Get the number of blocks in the tracefile |
1150 | ****************************************************************************/ |
1151 | |
3aee1200 |
1152 | guint ltt_tracefile_block_number(LttTracefile *tf) |
80da81ad |
1153 | { |
3aee1200 |
1154 | return tf->num_blocks; |
80da81ad |
1155 | } |
1156 | |
caf7a67a |
1157 | |
3aee1200 |
1158 | /* Seek to the first event in a tracefile that has a time equal or greater than |
1159 | * the time passed in parameter. |
1160 | * |
1161 | * If the time parameter is outside the tracefile time span, seek to the first |
1162 | * or the last event of the tracefile. |
1163 | * |
1164 | * If the time parameter is before the first event, we have to seek specially to |
1165 | * there. |
1166 | * |
1167 | * If the time is after the end of the trace, get the last event. |
1168 | * |
1169 | * Do a binary search to find the right block, then a sequential search in the |
1170 | * block to find the event. |
1171 | * |
1172 | * In the special case where the time requested fits inside a block that has no |
1173 | * event corresponding to the requested time, the first event of the next block |
1174 | * will be seeked. |
1175 | * |
1176 | * IMPORTANT NOTE : // FIXME everywhere... |
1177 | * |
1178 | * You MUST NOT do a ltt_tracefile_read right after a ltt_tracefile_seek_time : |
1179 | * you will jump over an event if you do. |
1180 | * |
1181 | * Return value : 0 : no error, the tf->event can be used |
1182 | * otherwise : this is an error. |
1183 | * |
1184 | * */ |
1185 | |
1186 | int ltt_tracefile_seek_time(LttTracefile *tf, LttTime time) |
1187 | { |
1188 | int ret = 0; |
1189 | int err; |
1190 | unsigned int block_num, high, low; |
1191 | |
1192 | /* seek at the beginning of trace */ |
1193 | err = map_block(tf, 0); /* First block */ |
1194 | if(unlikely(err)) { |
1195 | g_error("Can not map block"); |
1196 | goto fail; |
caf7a67a |
1197 | } |
1198 | |
3aee1200 |
1199 | /* If the time is lower or equal the beginning of the trace, |
1200 | * go to the first event. */ |
1201 | if(ltt_time_compare(time, tf->buffer.begin.timestamp) <= 0) { |
1202 | ret = ltt_tracefile_read(tf); |
1203 | goto found; /* There is either no event in the trace or the event points |
1204 | to the first event in the trace */ |
1205 | } |
caf7a67a |
1206 | |
3aee1200 |
1207 | err = map_block(tf, tf->num_blocks - 1); /* Last block */ |
1208 | if(unlikely(err)) { |
1209 | g_error("Can not map block"); |
1210 | goto fail; |
caf7a67a |
1211 | } |
6cd62ccf |
1212 | |
3aee1200 |
1213 | /* If the time is after the end of the trace, get the last event. */ |
1214 | if(ltt_time_compare(time, tf->buffer.end.timestamp) >= 0) { |
1215 | /* While the ltt_tracefile_read doesn't return ERANGE or EPERM, |
1216 | * continue reading. |
1217 | */ |
1218 | while(1) { |
1219 | ret = ltt_tracefile_read(tf); |
1220 | if(ret == ERANGE) goto found; /* ERANGE or EPERM */ |
1221 | else if(ret) goto fail; |
1222 | } |
1223 | } |
62e55dd6 |
1224 | |
3aee1200 |
1225 | /* Binary search the block */ |
1226 | high = tf->num_blocks - 1; |
1227 | low = 0; |
1228 | |
1229 | while(1) { |
1230 | block_num = ((high-low) / 2) + low; |
1231 | |
1232 | err = map_block(tf, block_num); |
1233 | if(unlikely(err)) { |
1234 | g_error("Can not map block"); |
1235 | goto fail; |
db55eaae |
1236 | } |
3aee1200 |
1237 | if(high == low) { |
1238 | /* We cannot divide anymore : this is what would happen if the time |
1239 | * requested was exactly between two consecutive buffers'end and start |
1240 | * timestamps. This is also what would happend if we didn't deal with out |
1241 | * of span cases prior in this function. */ |
1242 | /* The event is right in the buffer! |
1243 | * (or in the next buffer first event) */ |
1244 | while(1) { |
1245 | ret = ltt_tracefile_read(tf); |
1246 | if(ret == ERANGE) goto found; /* ERANGE or EPERM */ |
1247 | else if(ret) goto fail; |
1248 | |
1249 | if(ltt_time_compare(time, tf->event.event_time) >= 0) |
1250 | break; |
1251 | } |
1252 | |
1253 | } if(ltt_time_compare(time, tf->buffer.begin.timestamp) < 0) { |
1254 | /* go to lower part */ |
1255 | high = block_num; |
1256 | } else if(ltt_time_compare(time, tf->buffer.end.timestamp) > 0) { |
1257 | /* go to higher part */ |
1258 | low = block_num; |
1259 | } else {/* The event is right in the buffer! |
1260 | (or in the next buffer first event) */ |
1261 | while(1) { |
1262 | ltt_tracefile_read(tf); |
1263 | if(ret == ERANGE) goto found; /* ERANGE or EPERM */ |
1264 | else if(ret) goto fail; |
1265 | |
1266 | if(ltt_time_compare(time, tf->event.event_time) >= 0) |
1267 | break; |
6cd62ccf |
1268 | } |
3aee1200 |
1269 | goto found; |
6cd62ccf |
1270 | } |
6cd62ccf |
1271 | } |
3aee1200 |
1272 | |
1273 | found: |
1274 | return 0; |
1275 | |
1276 | /* Error handling */ |
1277 | fail: |
1278 | g_error("ltt_tracefile_seek_time failed on tracefile %s", |
1279 | g_quark_to_string(tf->name)); |
1280 | return EPERM; |
6cd62ccf |
1281 | } |
1282 | |
80da81ad |
1283 | |
3aee1200 |
1284 | int ltt_tracefile_seek_position(LttTracefile *tf, const LttEventPosition *ep) { |
80da81ad |
1285 | |
3aee1200 |
1286 | int err; |
1287 | |
1288 | if(ep->tracefile != tf) { |
1289 | goto fail; |
80da81ad |
1290 | } |
1291 | |
3aee1200 |
1292 | err = map_block(tf, ep->block); |
1293 | if(unlikely(err)) { |
1294 | g_error("Can not map block"); |
1295 | goto fail; |
1296 | } |
1297 | |
1298 | tf->event.offset = ep->offset; |
18206708 |
1299 | |
3aee1200 |
1300 | err = ltt_tracefile_read_update_event(tf); |
1301 | if(err) goto fail; |
1302 | err = ltt_tracefile_read_op(tf); |
1303 | if(err) goto fail; |
80da81ad |
1304 | |
1305 | return; |
3aee1200 |
1306 | |
1307 | fail: |
1308 | g_error("ltt_tracefile_seek_time failed on tracefile %s", |
1309 | g_quark_to_string(tf->name)); |
1310 | } |
1311 | |
1312 | /* Calculate the real event time based on the buffer boundaries */ |
1313 | LttTime ltt_interpolate_time(LttTracefile *tf, LttEvent *event) |
1314 | { |
1315 | LttTime time; |
1316 | |
1317 | g_assert(tf->trace->has_tsc); |
1318 | |
1319 | time = ltt_time_from_uint64( |
1320 | (guint64)tf->buffer.tsc*tf->buffer.nsecs_per_cycle); |
1321 | time = ltt_time_add(tf->buffer.begin.timestamp, time); |
1322 | |
1323 | return time; |
80da81ad |
1324 | } |
1325 | |
6cd62ccf |
1326 | /***************************************************************************** |
1327 | *Function name |
3aee1200 |
1328 | * ltt_tracefile_read : Read the next event in the tracefile |
6cd62ccf |
1329 | *Input params |
1330 | * t : tracefile |
1331 | *Return value |
3aee1200 |
1332 | * |
1333 | * Returns 0 if an event can be used in tf->event. |
1334 | * Returns ERANGE on end of trace. The event in tf->event still can be used. |
1335 | * Returns EPERM on error. |
1336 | * |
1337 | * This function does make the tracefile event structure point to the event |
1338 | * currently pointed to by the tf->event. |
1339 | * |
1340 | * Note : you must call a ltt_tracefile_seek to the beginning of the trace to |
1341 | * reinitialize it after an error if you want results to be coherent. |
1342 | * It would be the case if a end of trace last buffer has no event : the end |
1343 | * of trace wouldn't be returned, but an error. |
1344 | * We make the assumption there is at least one event per buffer. |
6cd62ccf |
1345 | ****************************************************************************/ |
1346 | |
3aee1200 |
1347 | int ltt_tracefile_read(LttTracefile *tf) |
6cd62ccf |
1348 | { |
963b5f2d |
1349 | int err; |
6cd62ccf |
1350 | |
3aee1200 |
1351 | err = ltt_tracefile_read_seek(tf); |
1352 | if(err) return err; |
1353 | err = ltt_tracefile_read_update_event(tf); |
1354 | if(err) return err; |
1355 | err = ltt_tracefile_read_op(tf); |
1356 | if(err) return err; |
1357 | |
1358 | return 0; |
1359 | } |
1360 | |
1361 | int ltt_tracefile_read_seek(LttTracefile *tf) |
1362 | { |
1363 | int err; |
1364 | |
1365 | /* Get next buffer until we finally have an event, or end of trace */ |
1366 | while(1) { |
1367 | err = ltt_seek_next_event(tf); |
1368 | if(unlikely(err == ENOPROTOOPT)) { |
1369 | return EPERM; |
bdc36259 |
1370 | } |
bdc36259 |
1371 | |
3aee1200 |
1372 | /* Are we at the end of the buffer ? */ |
1373 | if(err == ERANGE) { |
1374 | if(unlikely(tf->buffer.index == tf->num_blocks-1)){ /* end of trace ? */ |
1375 | return ERANGE; |
1376 | } else { |
1377 | /* get next block */ |
1378 | err = map_block(tf, tf->buffer.index + 1); |
1379 | if(unlikely(err)) { |
1380 | g_error("Can not map block"); |
1381 | return EPERM; |
1382 | } |
1383 | } |
1384 | } else break; /* We found an event ! */ |
1385 | } |
2dee981d |
1386 | |
3aee1200 |
1387 | return 0; |
1388 | } |
18206708 |
1389 | |
1390 | |
3aee1200 |
1391 | /* do specific operation on events */ |
1392 | int ltt_tracefile_read_op(LttTracefile *tf) |
1393 | { |
1394 | int err; |
1395 | LttFacility *f; |
1396 | void * pos; |
1397 | LttEvent *event; |
1398 | |
1399 | event = &tf->event; |
18206708 |
1400 | |
3aee1200 |
1401 | /* do event specific operation */ |
40331ba8 |
1402 | |
3aee1200 |
1403 | /* do something if its an heartbeat event : increment the heartbeat count */ |
1404 | //if(event->facility_id == LTT_FACILITY_CORE) |
1405 | // if(event->event_id == LTT_EVENT_HEARTBEAT) |
1406 | // tf->cur_heart_beat_number++; |
1407 | |
1408 | return 0; |
6cd62ccf |
1409 | } |
1410 | |
6cd62ccf |
1411 | |
3aee1200 |
1412 | /* same as ltt_tracefile_read, but does not seek to the next event nor call |
1413 | * event specific operation. */ |
1414 | int ltt_tracefile_read_update_event(LttTracefile *tf) |
6cd62ccf |
1415 | { |
3aee1200 |
1416 | int err; |
1417 | LttFacility *f; |
1418 | void * pos; |
1419 | LttEvent *event; |
1420 | |
1421 | event = &tf->event; |
1422 | pos = event->offset; |
1423 | |
1424 | /* Read event header */ |
1425 | |
1426 | //TODO align |
1427 | |
1428 | if(tf->trace->has_tsc) { |
1429 | event->time.timestamp = ltt_get_uint32(LTT_GET_BO(tf), |
1430 | pos); |
1431 | /* 32 bits -> 64 bits tsc */ |
1432 | /* note : still works for seek and non seek cases. */ |
1433 | if(event->time.timestamp < (0xFFFFFFFFULL&tf->buffer.tsc)) { |
1434 | tf->buffer.tsc = ((tf->buffer.tsc&0xFFFFFFFF00000000ULL) |
1435 | + 0x100000000ULL) |
1436 | | (guint64)event->time.timestamp; |
1437 | event->tsc = tf->buffer.tsc; |
1438 | } else { |
1439 | /* no overflow */ |
1440 | tf->buffer.tsc = (tf->buffer.tsc&0xFFFFFFFF00000000ULL) |
1441 | | (guint64)event->time.timestamp; |
1442 | event->tsc = tf->buffer.tsc; |
1443 | } |
1444 | |
1445 | event->event_time = ltt_interpolate_time(tf, event); |
1446 | |
1447 | pos += sizeof(guint32); |
1448 | } else { |
1449 | event->time.delta.tv_sec = 0; |
1450 | event->time.delta.tv_nsec = ltt_get_uint32(LTT_GET_BO(tf), |
1451 | pos) * NSEC_PER_USEC; |
1452 | tf->buffer.tsc = 0; |
1453 | event->tsc = tf->buffer.tsc; |
1454 | |
1455 | event->event_time = ltt_time_add(tf->buffer.begin.timestamp, |
1456 | event->time.delta); |
1457 | pos += sizeof(guint32); |
1458 | } |
1459 | |
1460 | event->facility_id = ltt_get_uint8(LTT_GET_BO(tf), |
1461 | pos); |
1462 | pos += sizeof(guint8); |
1463 | |
1464 | event->event_id = ltt_get_uint8(LTT_GET_BO(tf), |
1465 | pos); |
1466 | pos += sizeof(guint8); |
1467 | |
1468 | event->data = pos; |
1469 | |
77175651 |
1470 | /* get the data size and update the event fields with the current |
1471 | * information */ |
1472 | event->data_size = ltt_update_event_size(tf); |
1473 | |
3aee1200 |
1474 | return 0; |
6cd62ccf |
1475 | } |
1476 | |
507915ee |
1477 | |
6cd62ccf |
1478 | /**************************************************************************** |
1479 | *Function name |
3aee1200 |
1480 | * map_block : map a block from the file |
6cd62ccf |
1481 | *Input Params |
1482 | * lttdes : ltt trace file |
1483 | * whichBlock : the block which will be read |
1484 | *return value |
1485 | * 0 : success |
1486 | * EINVAL : lseek fail |
1487 | * EIO : can not read from the file |
1488 | ****************************************************************************/ |
1489 | |
3aee1200 |
1490 | static gint map_block(LttTracefile * tf, guint block_num) |
6cd62ccf |
1491 | { |
3aee1200 |
1492 | struct ltt_block_start_header *header; |
1493 | |
1494 | g_assert(block_num < tf->num_blocks); |
6cd62ccf |
1495 | |
3aee1200 |
1496 | if(tf->buffer.head != NULL) |
1497 | munmap(tf->buffer.head, tf->buf_size); |
ac849774 |
1498 | |
3aee1200 |
1499 | /* Multiple of pages aligned head */ |
1500 | tf->buffer.head = mmap(0, tf->block_size, PROT_READ, tf->fd, MAP_PRIVATE, |
1501 | (off_t)tf->block_size * (off_t)block_num); |
1502 | |
1503 | if(tf->buffer.head == NULL) { |
1504 | perror("Error in allocating memory for buffer of tracefile"); |
1505 | goto map_error; |
6cd62ccf |
1506 | } |
3aee1200 |
1507 | g_assert(((guint)tf->buffer.head) & (8-1) == 0); // make sure it's aligned. |
1508 | |
6cd62ccf |
1509 | |
3aee1200 |
1510 | tf->buffer.index = block_num; |
1511 | |
1512 | header = (struct ltt_block_start_header*)tf->buffer.head; |
1513 | |
1514 | tf->buffer.begin.timestamp = ltt_get_time(LTT_GET_BO(tf), |
1515 | &header->begin.timestamp); |
1516 | tf->buffer.begin.timestamp.tv_nsec *= NSEC_PER_USEC; |
1517 | tf->buffer.begin.cycle_count = ltt_get_uint64(LTT_GET_BO(tf), |
1518 | &header->begin.cycle_count); |
1519 | tf->buffer.end.timestamp = ltt_get_time(LTT_GET_BO(tf), |
1520 | &header->end.timestamp); |
1521 | tf->buffer.end.timestamp.tv_nsec *= NSEC_PER_USEC; |
1522 | tf->buffer.end.cycle_count = ltt_get_uint64(LTT_GET_BO(tf), |
1523 | &header->end.cycle_count); |
1524 | tf->buffer.lost_size = ltt_get_uint32(LTT_GET_BO(tf), |
1525 | &header->lost_size); |
6cd62ccf |
1526 | |
3aee1200 |
1527 | tf->buffer.tsc = tf->buffer.begin.cycle_count; |
1528 | tf->event.tsc = tf->buffer.tsc; |
1529 | |
1530 | /* FIXME |
1531 | * eventually support variable buffer size : will need a partial pre-read of |
1532 | * the headers to create an index when we open the trace... eventually. */ |
1533 | g_assert(tf->block_size == ltt_get_uint32(LTT_GET_BO(tf), |
1534 | &header->buf_size)); |
507915ee |
1535 | |
3aee1200 |
1536 | /* Now that the buffer is mapped, calculate the time interpolation for the |
1537 | * block. */ |
1538 | |
1539 | tf->buffer.nsecs_per_cycle = calc_nsecs_per_cycle(tf); |
1540 | |
1541 | /* Make the current event point to the beginning of the buffer : |
1542 | * it means that the event read must get the first event. */ |
1543 | tf->event.tracefile = tf; |
1544 | tf->event.block = block_num; |
1545 | tf->event.offset = tf->buffer.head; |
1546 | |
1547 | return 0; |
6cd62ccf |
1548 | |
3aee1200 |
1549 | map_error: |
1550 | return -errno; |
40331ba8 |
1551 | |
6cd62ccf |
1552 | } |
1553 | |
77175651 |
1554 | /* It will update the fields offsets too */ |
1555 | void ltt_update_event_size(LttTracefile *tf) |
6cd62ccf |
1556 | { |
3aee1200 |
1557 | ssize_t size = 0; |
1558 | |
1559 | /* Specific handling of core events : necessary to read the facility control |
1560 | * tracefile. */ |
77175651 |
1561 | LttFacility *f = ltt_trace_get_facility_by_num(tf->trace, |
1562 | tf->event.facility_id); |
6cd62ccf |
1563 | |
77175651 |
1564 | if(unlikely(f == NULL)) { |
1565 | if(likely(tf->event.facility_id == LTT_FACILITY_CORE)) { |
1566 | switch((enum ltt_core_events)tf->event.event_id) { |
1567 | case LTT_EVENT_FACILITY_LOAD: |
1568 | size = sizeof(struct LttFacilityLoad); |
1569 | break; |
1570 | case LTT_EVENT_FACILITY_UNLOAD: |
1571 | size = sizeof(struct LttFacilityUnload); |
1572 | break; |
1573 | case LTT_EVENT_STATE_DUMP_FACILITY_LOAD: |
1574 | size = sizeof(struct LttStateDumpFacilityLoad); |
1575 | break; |
1576 | case LTT_EVENT_HEARTBEAT: |
1577 | size = sizeof(TimeHeartbeat); |
1578 | break; |
1579 | default: |
1580 | g_warning("Error in getting event size : tracefile %s, " |
1581 | "unknown event id %hhu in core facility.", |
1582 | g_quark_to_string(tf->name), |
1583 | tf->event.event_id); |
1584 | goto event_id_error; |
2dee981d |
1585 | |
77175651 |
1586 | } |
1587 | } |
3aee1200 |
1588 | } else { |
3aee1200 |
1589 | LttEventType *event_type = |
1590 | ltt_facility_eventtype_get(f, tf->event.event_id); |
1591 | size = get_fields_offsets(tf, event_type, tf->event.data); |
1592 | } |
3aee1200 |
1593 | |
77175651 |
1594 | tf->event.data_size = size; |
3aee1200 |
1595 | event_id_error: |
1596 | return -1; |
6cd62ccf |
1597 | } |
1598 | |
6cd62ccf |
1599 | |
3aee1200 |
1600 | /* Take the tf current event offset and use the event facility id and event id |
1601 | * to figure out where is the next event offset. |
1602 | * |
1603 | * This is an internal function not aiming at being used elsewhere : it will |
1604 | * not jump over the current block limits. Please consider using |
1605 | * ltt_tracefile_read to do this. |
1606 | * |
1607 | * Returns 0 on success |
1608 | * ERANGE if we are at the end of the buffer. |
1609 | * ENOPROTOOPT if an error occured when getting the current event size. |
1610 | */ |
1611 | static int ltt_seek_next_event(LttTracefile *tf) |
6cd62ccf |
1612 | { |
3aee1200 |
1613 | int ret = 0; |
1614 | void *pos; |
1615 | ssize_t event_size; |
1616 | |
1617 | /* seek over the buffer header if we are at the buffer start */ |
1618 | if(tf->event.offset == tf->buffer.head) { |
1619 | tf->event.offset += sizeof(struct ltt_block_start_header); |
1620 | goto found; |
1621 | } |
6cd62ccf |
1622 | |
6cd62ccf |
1623 | |
3aee1200 |
1624 | if(tf->event.offset == tf->buffer.head + tf->buffer.lost_size) { |
1625 | ret = ERANGE; |
1626 | goto found; |
6cd62ccf |
1627 | } |
1628 | |
3aee1200 |
1629 | pos = tf->event.data; |
1630 | |
77175651 |
1631 | if(tf->event.data_size < 0) goto error; |
3aee1200 |
1632 | |
77175651 |
1633 | pos += (size_t)tf->event.data_size; |
3aee1200 |
1634 | |
1635 | tf->event.offset = pos; |
1636 | |
1637 | found: |
1638 | return ret; |
1639 | |
1640 | error: |
1641 | g_error("Error in ltt_seek_next_event for tracefile %s", |
1642 | g_quark_to_string(tf->name)); |
1643 | return ENOPROTOOPT; |
6cd62ccf |
1644 | } |
1645 | |
18206708 |
1646 | |
6cd62ccf |
1647 | /***************************************************************************** |
1648 | *Function name |
3aee1200 |
1649 | * calc_nsecs_per_cycle : calculate nsecs per cycle for current block |
6cd62ccf |
1650 | *Input Params |
1651 | * t : tracefile |
1652 | ****************************************************************************/ |
1653 | |
3aee1200 |
1654 | static double calc_nsecs_per_cycle(LttTracefile * tf) |
6cd62ccf |
1655 | { |
963b5f2d |
1656 | LttTime lBufTotalTime; /* Total time for this buffer */ |
887208b7 |
1657 | double lBufTotalNSec; /* Total time for this buffer in nsecs */ |
8ee1c3d5 |
1658 | LttCycleCount lBufTotalCycle;/* Total cycles for this buffer */ |
6cd62ccf |
1659 | |
1660 | /* Calculate the total time for this buffer */ |
01bb5763 |
1661 | lBufTotalTime = ltt_time_sub( |
3aee1200 |
1662 | ltt_get_time(LTT_GET_BO(tf), &tf->buffer.end.timestamp), |
1663 | ltt_get_time(LTT_GET_BO(tf), &tf->buffer.begin.timestamp)); |
6cd62ccf |
1664 | |
1665 | /* Calculate the total cycles for this bufffer */ |
3aee1200 |
1666 | lBufTotalCycle = ltt_get_uint64(LTT_GET_BO(tf), &tf->buffer.end.cycle_count); |
1667 | lBufTotalCycle -= ltt_get_uint64(LTT_GET_BO(tf), |
1668 | &tf->buffer.begin.cycle_count); |
6cd62ccf |
1669 | |
8ee1c3d5 |
1670 | /* Convert the total time to double */ |
887208b7 |
1671 | lBufTotalNSec = ltt_time_to_double(lBufTotalTime); |
6cd62ccf |
1672 | |
3aee1200 |
1673 | return lBufTotalNSec / (double)lBufTotalCycle; |
8ee1c3d5 |
1674 | |
3aee1200 |
1675 | } |
1676 | #if 0 |
1677 | void setFieldsOffset(LttTracefile *tf, LttEventType *evT,void *evD) |
1678 | { |
1679 | LttField * rootFld = evT->root_field; |
1680 | // rootFld->base_address = evD; |
2dee981d |
1681 | |
3aee1200 |
1682 | if(likely(rootFld)) |
1683 | rootFld->field_size = getFieldtypeSize(tf, evT->facility, |
1684 | evT, 0,0,rootFld, evD); |
6cd62ccf |
1685 | } |
3aee1200 |
1686 | #endif //0 |
6cd62ccf |
1687 | |
3aee1200 |
1688 | /***************************************************************************** |
6cd62ccf |
1689 | *Function name |
3aee1200 |
1690 | * set_fields_offsets : set the precomputable offset of the fields |
6cd62ccf |
1691 | *Input params |
3aee1200 |
1692 | * tracefile : opened trace file |
1693 | * event_type : the event type |
6cd62ccf |
1694 | ****************************************************************************/ |
1695 | |
3aee1200 |
1696 | void set_fields_offsets(LttTracefile *tf, LttEventType *event_type) |
6cd62ccf |
1697 | { |
3aee1200 |
1698 | LttField *field = event_type->root_field; |
1699 | enum field_status fixed_root = FIELD_FIXED, fixed_parent = FIELD_FIXED; |
1700 | |
1701 | if(likely(field)) |
1702 | preset_field_type_size(tf, event_type, 0, 0, |
1703 | &fixed_root, &fixed_parent, |
1704 | field); |
1705 | |
1706 | } |
e4eced0f |
1707 | |
bbf28e50 |
1708 | |
3aee1200 |
1709 | /***************************************************************************** |
1710 | *Function name |
1711 | * preset_field_type_size : set the fixed sizes of the field type |
1712 | *Input params |
1713 | * tf : tracefile |
1714 | * event_type : event type |
1715 | * offset_root : offset from the root |
1716 | * offset_parent : offset from the parent |
1717 | * fixed_root : Do we know a fixed offset to the root ? |
1718 | * fixed_parent : Do we know a fixed offset to the parent ? |
1719 | * field : field |
1720 | ****************************************************************************/ |
1721 | void preset_field_type_size(LttTracefile *tf, LttEventType *event_type, |
1722 | off_t offset_root, off_t offset_parent, |
1723 | enum field_status *fixed_root, enum field_status *fixed_parent, |
1724 | LttField *field) |
1725 | { |
1726 | enum field_status local_fixed_root, local_fixed_parent; |
1727 | guint i; |
1728 | LttType *type; |
dfb73233 |
1729 | |
3aee1200 |
1730 | g_assert(field->fixed_root == FIELD_UNKNOWN); |
1731 | g_assert(field->fixed_parent == FIELD_UNKNOWN); |
1732 | g_assert(field->fixed_size == FIELD_UNKNOWN); |
dfb73233 |
1733 | |
3aee1200 |
1734 | type = field->field_type; |
1735 | |
1736 | field->fixed_root = *fixed_root; |
1737 | if(field->fixed_root == FIELD_FIXED) |
1738 | field->offset_root = offset_root; |
1739 | else |
1740 | field->offset_root = 0; |
1741 | |
1742 | field->fixed_parent = *fixed_parent; |
1743 | if(field->fixed_parent == FIELD_FIXED) |
1744 | field->offset_parent = offset_parent; |
1745 | else |
1746 | field->offset_parent = 0; |
1747 | |
1748 | size_t current_root_offset; |
1749 | size_t current_offset; |
1750 | enum field_status current_child_status, final_child_status; |
1751 | size_t max_size; |
1752 | |
1753 | switch(type->type_class) { |
1754 | case LTT_INT: |
1755 | case LTT_UINT: |
1756 | case LTT_FLOAT: |
1757 | case LTT_ENUM: |
1758 | field->field_size = ltt_type_size(tf->trace, type); |
1759 | field->fixed_size = FIELD_FIXED; |
1760 | break; |
1761 | case LTT_POINTER: |
1762 | field->field_size = (off_t)event_type->facility->pointer_size; |
1763 | field->fixed_size = FIELD_FIXED; |
1764 | break; |
1765 | case LTT_LONG: |
1766 | case LTT_ULONG: |
1767 | field->field_size = (off_t)event_type->facility->pointer_size; |
1768 | field->fixed_size = FIELD_FIXED; |
1769 | break; |
1770 | case LTT_SIZE_T: |
1771 | case LTT_SSIZE_T: |
1772 | case LTT_OFF_T: |
1773 | field->field_size = (off_t)event_type->facility->size_t_size; |
1774 | field->fixed_size = FIELD_FIXED; |
1775 | break; |
1776 | case LTT_SEQUENCE: |
1777 | local_fixed_root = FIELD_VARIABLE; |
1778 | local_fixed_parent = FIELD_VARIABLE; |
1779 | preset_field_type_size(tf, event_type, |
1780 | 0, 0, |
1781 | &local_fixed_root, &local_fixed_parent, |
1782 | field->child[0]); |
1783 | field->fixed_size = FIELD_VARIABLE; |
1784 | field->field_size = 0; |
1785 | break; |
1786 | case LTT_STRING: |
1787 | field->fixed_size = FIELD_VARIABLE; |
1788 | field->field_size = 0; |
1789 | break; |
1790 | case LTT_ARRAY: |
1791 | local_fixed_root = FIELD_VARIABLE; |
1792 | local_fixed_parent = FIELD_VARIABLE; |
1793 | preset_field_type_size(tf, event_type, |
1794 | 0, 0, |
1795 | &local_fixed_root, &local_fixed_parent, |
1796 | field->child[0]); |
1797 | field->fixed_size = field->child[0]->fixed_size; |
1798 | if(field->fixed_size == FIELD_FIXED) |
1799 | field->field_size = type->element_number * field->child[0]->field_size; |
1800 | else |
1801 | field->field_size = 0; |
1802 | break; |
1803 | case LTT_STRUCT: |
1804 | current_root_offset = field->offset_root; |
1805 | current_offset = 0; |
1806 | current_child_status = FIELD_FIXED; |
1807 | for(i=0;i<type->element_number;i++) { |
1808 | preset_field_type_size(tf, event_type, |
1809 | current_root_offset, current_offset, |
1810 | fixed_root, ¤t_child_status, |
1811 | field->child[i]); |
1812 | if(current_child_status == FIELD_FIXED) { |
1813 | current_root_offset += field->child[i]->field_size; |
1814 | current_offset += field->child[i]->field_size; |
1815 | } else { |
1816 | current_root_offset = 0; |
1817 | current_offset = 0; |
1818 | } |
1819 | } |
1820 | if(current_child_status != FIELD_FIXED) { |
1821 | *fixed_parent = current_child_status; |
1822 | field->field_size = 0; |
1823 | field->fixed_size = current_child_status; |
1824 | } else { |
1825 | field->field_size = current_offset; |
1826 | field->fixed_size = FIELD_FIXED; |
1827 | } |
1828 | break; |
1829 | case LTT_UNION: |
1830 | current_root_offset = field->offset_root; |
1831 | current_offset = 0; |
1832 | max_size = 0; |
1833 | final_child_status = FIELD_FIXED; |
1834 | for(i=0;i<type->element_number;i++) { |
1835 | enum field_status current_root_child_status = FIELD_FIXED; |
1836 | enum field_status current_child_status = FIELD_FIXED; |
1837 | preset_field_type_size(tf, event_type, |
1838 | current_root_offset, current_offset, |
1839 | ¤t_root_child_status, ¤t_child_status, |
1840 | field->child[i]); |
1841 | if(current_child_status != FIELD_FIXED) |
1842 | final_child_status = current_child_status; |
1843 | else |
1844 | max_size = max(max_size, field->child[i]->field_size); |
1845 | } |
1846 | if(final_child_status != FIELD_FIXED) { |
1847 | *fixed_root = final_child_status; |
1848 | *fixed_parent = final_child_status; |
1849 | field->field_size = 0; |
1850 | field->fixed_size = current_child_status; |
1851 | } else { |
1852 | field->field_size = max_size; |
1853 | field->fixed_size = FIELD_FIXED; |
1854 | } |
1855 | break; |
dfb73233 |
1856 | } |
1857 | |
6cd62ccf |
1858 | } |
1859 | |
3aee1200 |
1860 | |
6cd62ccf |
1861 | /***************************************************************************** |
1862 | *Function name |
3aee1200 |
1863 | * get_field_type_size : set the fixed and dynamic sizes of the field type |
1864 | * from the data read. |
6cd62ccf |
1865 | *Input params |
3aee1200 |
1866 | * tf : tracefile |
1867 | * event_type : event type |
1868 | * offset_root : offset from the root |
1869 | * offset_parent : offset from the parent |
1870 | * field : field |
1871 | * data : a pointer to the event data. |
1872 | *Returns the field type size. |
6cd62ccf |
1873 | ****************************************************************************/ |
3aee1200 |
1874 | size_t get_field_type_size(LttTracefile *tf, LttEventType *event_type, |
1875 | off_t offset_root, off_t offset_parent, |
1876 | LttField *field, void *data) |
6cd62ccf |
1877 | { |
3aee1200 |
1878 | size_t size = 0; |
1879 | guint i; |
1880 | LttType *type; |
1881 | |
1882 | g_assert(field->fixed_root != FIELD_UNKNOWN); |
1883 | g_assert(field->fixed_parent != FIELD_UNKNOWN); |
1884 | g_assert(field->fixed_size != FIELD_UNKNOWN); |
6cd62ccf |
1885 | |
3aee1200 |
1886 | field->offset_root = offset_root; |
1887 | field->offset_parent = offset_parent; |
1888 | |
1889 | type = field->field_type; |
1890 | |
1891 | switch(type->type_class) { |
1892 | case LTT_INT: |
1893 | case LTT_UINT: |
1894 | case LTT_FLOAT: |
1895 | case LTT_ENUM: |
1896 | case LTT_POINTER: |
1897 | case LTT_LONG: |
1898 | case LTT_ULONG: |
1899 | case LTT_SIZE_T: |
1900 | case LTT_SSIZE_T: |
1901 | case LTT_OFF_T: |
1902 | g_assert(field->fixed_size == FIELD_FIXED); |
1903 | size = field->field_size; |
1904 | break; |
1905 | case LTT_SEQUENCE: |
1906 | { |
1907 | gint seqnum = ltt_get_uint(LTT_GET_BO(tf), |
1908 | field->sequ_number_size, |
1909 | data + offset_root); |
1910 | |
1911 | if(field->child[0]->fixed_size == FIELD_FIXED) { |
1912 | size = field->sequ_number_size + |
1913 | (seqnum * get_field_type_size(tf, event_type, |
1914 | offset_root, offset_parent, |
1915 | field->child[0], data)); |
1916 | } else { |
1917 | size += field->sequ_number_size; |
1918 | for(i=0;i<seqnum;i++) { |
1919 | size_t child_size; |
1920 | child_size = get_field_type_size(tf, event_type, |
1921 | offset_root, offset_parent, |
1922 | field->child[0], data); |
1923 | offset_root += child_size; |
1924 | offset_parent += child_size; |
1925 | size += child_size; |
1926 | } |
1927 | } |
1928 | field->field_size = size; |
1929 | } |
1930 | break; |
1931 | case LTT_STRING: |
1932 | size = strlen((char*)(data+offset_root)) + 1;// length + \0 |
1933 | field->field_size = size; |
1934 | break; |
1935 | case LTT_ARRAY: |
1936 | if(field->fixed_size == FIELD_FIXED) |
1937 | size = field->field_size; |
1938 | else { |
1939 | for(i=0;i<field->field_type->element_number;i++) { |
1940 | size_t child_size; |
1941 | child_size = get_field_type_size(tf, event_type, |
1942 | offset_root, offset_parent, |
1943 | field->child[0], data); |
1944 | offset_root += child_size; |
1945 | offset_parent += child_size; |
1946 | size += child_size; |
1947 | } |
1948 | field->field_size = size; |
1949 | } |
1950 | break; |
1951 | case LTT_STRUCT: |
1952 | if(field->fixed_size == FIELD_FIXED) |
1953 | size = field->field_size; |
1954 | else { |
1955 | size_t current_root_offset = offset_root; |
1956 | size_t current_offset = 0; |
1957 | size_t child_size = 0; |
1958 | for(i=0;i<type->element_number;i++) { |
1959 | child_size = get_field_type_size(tf, |
1960 | event_type, current_root_offset, current_offset, |
1961 | field->child[i], data); |
1962 | current_offset += child_size; |
1963 | current_root_offset += child_size; |
1964 | |
1965 | } |
1966 | size = current_offset; |
1967 | field->field_size = size; |
1968 | } |
1969 | break; |
1970 | case LTT_UNION: |
1971 | if(field->fixed_size == FIELD_FIXED) |
1972 | size = field->field_size; |
1973 | else { |
1974 | size_t current_root_offset = field->offset_root; |
1975 | size_t current_offset = 0; |
1976 | for(i=0;i<type->element_number;i++) { |
1977 | size = get_field_type_size(tf, event_type, |
1978 | current_root_offset, current_offset, |
1979 | field->child[i], data); |
1980 | size = max(size, field->child[i]->field_size); |
1981 | } |
1982 | field->field_size = size; |
1983 | } |
1984 | break; |
1985 | } |
1986 | |
1987 | return size; |
6cd62ccf |
1988 | } |
1989 | |
3aee1200 |
1990 | |
77175651 |
1991 | /***************************************************************************** |
1992 | *Function name |
1993 | * check_fields_compatibility : Check for compatibility between two fields : |
1994 | * do they use the same inner structure ? |
1995 | *Input params |
1996 | * event_type1 : event type |
1997 | * event_type2 : event type |
1998 | * field1 : field |
1999 | * field2 : field |
2000 | *Returns : 0 if identical |
2001 | * 1 if not. |
2002 | ****************************************************************************/ |
2003 | gint check_fields_compatibility(LttEventType *event_type1, |
2004 | LttEventType *event_type2, |
2005 | LttField *field1, LttField *field2) |
2006 | { |
2007 | guint different = 0; |
2008 | enum field_status local_fixed_root, local_fixed_parent; |
2009 | guint i; |
2010 | LttType *type1; |
2011 | LttType *type2; |
2012 | |
2013 | if(field1 == NULL) { |
2014 | if(field2 == NULL) goto end; |
2015 | else { |
2016 | different = 1; |
2017 | goto end; |
2018 | } |
2019 | } else if(field2 == NULL) { |
2020 | different = 1; |
2021 | goto end; |
2022 | } |
2023 | |
2024 | g_assert(field1->fixed_root != FIELD_UNKNOWN); |
2025 | g_assert(field2->fixed_root != FIELD_UNKNOWN); |
2026 | g_assert(field1->fixed_parent != FIELD_UNKNOWN); |
2027 | g_assert(field2->fixed_parent != FIELD_UNKNOWN); |
2028 | g_assert(field1->fixed_size != FIELD_UNKNOWN); |
2029 | g_assert(field2->fixed_size != FIELD_UNKNOWN); |
2030 | |
2031 | type1 = field1->field_type; |
2032 | type2 = field2->field_type; |
2033 | |
2034 | size_t current_root_offset; |
2035 | size_t current_offset; |
2036 | enum field_status current_child_status, final_child_status; |
2037 | size_t max_size; |
2038 | |
2039 | if(type1->type_class != type2->type_class) { |
2040 | different = 1; |
2041 | goto end; |
2042 | } |
2043 | if(type1->element_name != type2->element_name) { |
2044 | different = 1; |
2045 | goto end; |
2046 | } |
2047 | |
2048 | switch(type1->type_class) { |
2049 | case LTT_INT: |
2050 | case LTT_UINT: |
2051 | case LTT_FLOAT: |
2052 | case LTT_POINTER: |
2053 | case LTT_LONG: |
2054 | case LTT_ULONG: |
2055 | case LTT_SIZE_T: |
2056 | case LTT_SSIZE_T: |
2057 | case LTT_OFF_T: |
2058 | if(field1->field_size != field2->field_size) { |
2059 | different = 1; |
2060 | goto end; |
2061 | } |
2062 | break; |
2063 | case LTT_ENUM: |
2064 | if(type1->element_number != type2->element_number) { |
2065 | different = 1; |
2066 | goto end; |
2067 | } |
2068 | for(i=0;i<type1->element_number;i++) { |
2069 | if(type1->enum_strings[i] != type2->enum_strings[i]) { |
2070 | different = 1; |
2071 | goto end; |
2072 | } |
2073 | } |
2074 | break; |
2075 | case LTT_SEQUENCE: |
2076 | /* Two elements : size and child */ |
2077 | g_assert(type1->element_number != type2->element_number); |
2078 | for(i=0;i<type1->element_number;i++) { |
2079 | if(check_fields_compatibility(event_type1, event_type2, |
2080 | field1->child[0], field2->child[0])) { |
2081 | different = 1; |
2082 | goto end; |
2083 | } |
2084 | } |
2085 | break; |
2086 | case LTT_STRING: |
2087 | break; |
2088 | case LTT_ARRAY: |
2089 | if(field1->field_size != field2->field_size) { |
2090 | different = 1; |
2091 | goto end; |
2092 | } |
2093 | /* Two elements : size and child */ |
2094 | g_assert(type1->element_number != type2->element_number); |
2095 | for(i=0;i<type1->element_number;i++) { |
2096 | if(check_fields_compatibility(event_type1, event_type2, |
2097 | field1->child[0], field2->child[0])) { |
2098 | different = 1; |
2099 | goto end; |
2100 | } |
2101 | } |
2102 | break; |
2103 | case LTT_STRUCT: |
2104 | case LTT_UNION: |
2105 | if(type1->element_number != type2->element_number) { |
2106 | different = 1; |
2107 | break; |
2108 | } |
2109 | for(i=0;i<type1->element_number;i++) { |
2110 | if(check_fields_compatibility(event_type1, event_type2, |
2111 | field1->child[0], field2->child[0])) { |
2112 | different = 1; |
2113 | goto end; |
2114 | } |
2115 | } |
2116 | break; |
2117 | } |
2118 | end: |
2119 | return different; |
2120 | } |
2121 | |
2122 | |
2123 | |
3aee1200 |
2124 | |
2125 | #if 0 |
6cd62ccf |
2126 | /***************************************************************************** |
2127 | *Function name |
2128 | * getFieldtypeSize: get the size of the field type (primitive type) |
2129 | *Input params |
6cd62ccf |
2130 | * evT : event type |
2131 | * offsetRoot : offset from the root |
2132 | * offsetParent : offset from the parrent |
2133 | * fld : field |
2134 | * evD : event data, it may be NULL |
2135 | *Return value |
2136 | * int : size of the field |
2137 | ****************************************************************************/ |
2138 | |
3aee1200 |
2139 | static inline gint getFieldtypeSize(LttTracefile *tf, |
21182d4a |
2140 | LttEventType * evT, gint offsetRoot, |
3aee1200 |
2141 | gint offsetParent, LttField * fld, void *evD) |
6cd62ccf |
2142 | { |
21182d4a |
2143 | gint size, size1, element_number, i, offset1, offset2; |
963b5f2d |
2144 | LttType * type = fld->field_type; |
6cd62ccf |
2145 | |
3aee1200 |
2146 | /* This likely has been tested with gcov : half of them.. */ |
2147 | if(unlikely(fld->field_fixed == 1)){ |
2148 | /* tested : none */ |
2149 | if(unlikely(fld == evT->root_field)) { |
2150 | size = fld->field_size; |
2151 | goto end_getFieldtypeSize; |
21182d4a |
2152 | } |
3aee1200 |
2153 | } |
6cd62ccf |
2154 | |
3aee1200 |
2155 | /* From gcov profiling : half string, half struct, can we gain something |
2156 | * from that ? (Mathieu) */ |
2157 | switch(type->type_class) { |
2158 | case LTT_ARRAY: |
2159 | element_number = (int) type->element_number; |
2160 | if(fld->field_fixed == -1){ |
2161 | size = getFieldtypeSize(tf, evT, offsetRoot, |
2162 | 0,fld->child[0], NULL); |
2163 | if(size == 0){ //has string or sequence |
cf74a6f1 |
2164 | fld->field_fixed = 0; |
3aee1200 |
2165 | }else{ |
2166 | fld->field_fixed = 1; |
2167 | size *= element_number; |
a0d63196 |
2168 | } |
3aee1200 |
2169 | }else if(fld->field_fixed == 0){// has string or sequence |
cf74a6f1 |
2170 | size = 0; |
3aee1200 |
2171 | for(i=0;i<element_number;i++){ |
2172 | size += getFieldtypeSize(tf, evT, offsetRoot+size,size, |
2173 | fld->child[0], evD+size); |
cf74a6f1 |
2174 | } |
3aee1200 |
2175 | }else size = fld->field_size; |
2176 | if(unlikely(!evD)){ |
a0d63196 |
2177 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
2178 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
3aee1200 |
2179 | } |
cf74a6f1 |
2180 | |
3aee1200 |
2181 | break; |
2182 | |
2183 | case LTT_SEQUENCE: |
2184 | size1 = (int) ltt_type_size(fac, type); |
2185 | if(fld->field_fixed == -1){ |
2186 | fld->sequ_number_size = size1; |
2187 | fld->field_fixed = 0; |
2188 | size = getFieldtypeSize(evT, offsetRoot, |
2189 | 0,fld->child[0], NULL); |
2190 | fld->element_size = size; |
2191 | }else{//0: sequence |
2192 | element_number = getIntNumber(tf,size1,evD); |
2193 | type->element_number = element_number; |
2194 | if(fld->element_size > 0){ |
2195 | size = element_number * fld->element_size; |
2196 | }else{//sequence has string or sequence |
2197 | size = 0; |
cf74a6f1 |
2198 | for(i=0;i<element_number;i++){ |
3aee1200 |
2199 | size += getFieldtypeSize(tf, evT, |
2200 | offsetRoot+size+size1,size+size1, |
2201 | fld->child[0], evD+size+size1); |
cf74a6f1 |
2202 | } |
3aee1200 |
2203 | } |
2204 | size += size1; |
2205 | } |
2206 | if(unlikely(!evD)){ |
d37b2aaa |
2207 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
2208 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
3aee1200 |
2209 | } |
cf74a6f1 |
2210 | |
3aee1200 |
2211 | break; |
2212 | |
2213 | case LTT_STRING: |
2214 | size = 0; |
2215 | if(fld->field_fixed == -1){ |
2216 | fld->field_fixed = 0; |
2217 | }else{//0: string |
2218 | /* Hope my implementation is faster than strlen (Mathieu) */ |
2219 | char *ptr=(char*)evD; |
2220 | size = 1; |
2221 | /* from gcov : many many strings are empty, make it the common case.*/ |
2222 | while(unlikely(*ptr != '\0')) { size++; ptr++; } |
2223 | //size = ptr - (char*)evD + 1; //include end : '\0' |
2224 | } |
2225 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
2226 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
2227 | |
2228 | break; |
2229 | |
2230 | case LTT_STRUCT: |
2231 | element_number = (int) type->element_number; |
2232 | size = 0; |
2233 | /* tested with gcov */ |
2234 | if(unlikely(fld->field_fixed == -1)){ |
2235 | offset1 = offsetRoot; |
2236 | offset2 = 0; |
2237 | for(i=0;i<element_number;i++){ |
2238 | size1=getFieldtypeSize(tf, evT,offset1,offset2, |
2239 | fld->child[i], NULL); |
2240 | if(likely(size1 > 0 && size >= 0)){ |
2241 | size += size1; |
2242 | if(likely(offset1 >= 0)) offset1 += size1; |
2243 | offset2 += size1; |
2244 | }else{ |
2245 | size = -1; |
2246 | offset1 = -1; |
2247 | offset2 = -1; |
2248 | } |
a0d63196 |
2249 | } |
3aee1200 |
2250 | if(unlikely(size == -1)){ |
2251 | fld->field_fixed = 0; |
2252 | size = 0; |
2253 | }else fld->field_fixed = 1; |
2254 | }else if(likely(fld->field_fixed == 0)){ |
2255 | offset1 = offsetRoot; |
2256 | offset2 = 0; |
2257 | for(i=0;unlikely(i<element_number);i++){ |
2258 | size=getFieldtypeSize(tf, evT, offset1, offset2, |
2259 | fld->child[i], evD+offset2); |
2260 | offset1 += size; |
2261 | offset2 += size; |
2262 | } |
2263 | size = offset2; |
2264 | }else size = fld->field_size; |
2265 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
2266 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
2267 | break; |
2268 | |
2269 | default: |
2270 | if(unlikely(fld->field_fixed == -1)){ |
2271 | size = (int) ltt_type_size(LTT_GET_BO(tf), type); |
2272 | fld->field_fixed = 1; |
2273 | }else size = fld->field_size; |
2274 | if(unlikely(!evD)){ |
2275 | fld->fixed_root = (offsetRoot==-1) ? 0 : 1; |
2276 | fld->fixed_parent = (offsetParent==-1) ? 0 : 1; |
2277 | } |
2278 | break; |
cf74a6f1 |
2279 | } |
2280 | |
6cd62ccf |
2281 | fld->offset_root = offsetRoot; |
2282 | fld->offset_parent = offsetParent; |
6cd62ccf |
2283 | fld->field_size = size; |
2284 | |
21182d4a |
2285 | end_getFieldtypeSize: |
2286 | |
6cd62ccf |
2287 | return size; |
2288 | } |
3aee1200 |
2289 | #endif //0 |
6cd62ccf |
2290 | |
2291 | /***************************************************************************** |
2292 | *Function name |
3aee1200 |
2293 | * get_int : get an integer number |
6cd62ccf |
2294 | *Input params |
3aee1200 |
2295 | * reverse_byte_order: must we reverse the byte order ? |
6cd62ccf |
2296 | * size : the size of the integer |
3aee1200 |
2297 | * ptr : the data pointer |
6cd62ccf |
2298 | *Return value |
cf74a6f1 |
2299 | * gint64 : a 64 bits integer |
6cd62ccf |
2300 | ****************************************************************************/ |
2301 | |
3aee1200 |
2302 | gint64 get_int(gboolean reverse_byte_order, gint size, void *data) |
6cd62ccf |
2303 | { |
3aee1200 |
2304 | gint64 val; |
cf74a6f1 |
2305 | |
2306 | switch(size) { |
3aee1200 |
2307 | case 1: val = *((gint8*)data); break; |
2308 | case 2: val = ltt_get_int16(reverse_byte_order, data); break; |
2309 | case 4: val = ltt_get_int32(reverse_byte_order, data); break; |
2310 | case 8: val = ltt_get_int64(reverse_byte_order, data); break; |
2311 | default: val = ltt_get_int64(reverse_byte_order, data); |
2312 | g_critical("get_int : integer size %d unknown", size); |
cf74a6f1 |
2313 | break; |
2314 | } |
2315 | |
3aee1200 |
2316 | return val; |
6cd62ccf |
2317 | } |
3aee1200 |
2318 | |
6cd62ccf |
2319 | /***************************************************************************** |
2320 | *Function name |
3aee1200 |
2321 | * get_uint : get an unsigned integer number |
6cd62ccf |
2322 | *Input params |
3aee1200 |
2323 | * reverse_byte_order: must we reverse the byte order ? |
2324 | * size : the size of the integer |
2325 | * ptr : the data pointer |
2326 | *Return value |
2327 | * guint64 : a 64 bits unsigned integer |
6cd62ccf |
2328 | ****************************************************************************/ |
2329 | |
3aee1200 |
2330 | guint64 get_uint(gboolean reverse_byte_order, gint size, void *data) |
6cd62ccf |
2331 | { |
3aee1200 |
2332 | guint64 val; |
2333 | |
2334 | switch(size) { |
2335 | case 1: val = *((gint8*)data); break; |
2336 | case 2: val = ltt_get_uint16(reverse_byte_order, data); break; |
2337 | case 4: val = ltt_get_uint32(reverse_byte_order, data); break; |
2338 | case 8: val = ltt_get_uint64(reverse_byte_order, data); break; |
2339 | default: val = ltt_get_uint64(reverse_byte_order, data); |
2340 | g_critical("get_uint : unsigned integer size %d unknown", |
2341 | size); |
2342 | break; |
2343 | } |
2344 | |
2345 | return val; |
6cd62ccf |
2346 | } |
3aee1200 |
2347 | |
2348 | |
a5dcde2f |
2349 | /* get the node name of the system */ |
2350 | |
2351 | char * ltt_trace_system_description_node_name (LttSystemDescription * s) |
2352 | { |
2353 | return s->node_name; |
2354 | } |
2355 | |
2356 | |
2357 | /* get the domain name of the system */ |
2358 | |
2359 | char * ltt_trace_system_description_domain_name (LttSystemDescription * s) |
2360 | { |
2361 | return s->domain_name; |
2362 | } |
2363 | |
2364 | |
2365 | /* get the description of the system */ |
2366 | |
2367 | char * ltt_trace_system_description_description (LttSystemDescription * s) |
2368 | { |
2369 | return s->description; |
2370 | } |
2371 | |
2372 | |
2373 | /* get the start time of the trace */ |
2374 | |
2375 | LttTime ltt_trace_system_description_trace_start_time(LttSystemDescription *s) |
2376 | { |
2377 | return s->trace_start; |
2378 | } |
2379 | |
18206708 |
2380 | |
2381 | LttTracefile *ltt_tracefile_new() |
2382 | { |
2383 | return g_new(LttTracefile, 1); |
2384 | } |
2385 | |
2386 | void ltt_tracefile_destroy(LttTracefile *tf) |
2387 | { |
2388 | g_free(tf); |
2389 | } |
2390 | |
2391 | void ltt_tracefile_copy(LttTracefile *dest, const LttTracefile *src) |
2392 | { |
2393 | *dest = *src; |
2394 | } |
2395 | |
3aee1200 |
2396 | /* Before library loading... */ |
2397 | |
2398 | static void __attribute__((constructor)) init(void) |
2399 | { |
2400 | LTT_FACILITY_NAME_HEARTBEAT = g_quark_from_string("heartbeat"); |
2401 | LTT_EVENT_NAME_HEARTBEAT = g_quark_from_string("heartbeat"); |
2402 | |
2403 | LTT_TRACEFILE_NAME_FACILITIES = g_quark_from_string("control/facilities"); |
2404 | } |
2405 | |