Commit | Line | Data |
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9c312311 | 1 | /* This file is part of the Linux Trace Toolkit viewer |
2 | * Copyright (C) 2003-2004 Michel Dagenais | |
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 | ||
4e4d11b3 | 19 | #ifdef HAVE_CONFIG_H |
20 | #include <config.h> | |
21 | #endif | |
dc877563 | 22 | |
23 | #include <lttv/traceset.h> | |
3e67c985 | 24 | #include <lttv/iattribute.h> |
7a4bdb54 YB |
25 | #include <lttv/state.h> |
26 | #include <lttv/hook.h> | |
f7afe191 | 27 | #include <stdio.h> |
cbb811b3 | 28 | #include <babeltrace/context.h> |
7a4bdb54 YB |
29 | #include <babeltrace/iterator.h> |
30 | #include <babeltrace/ctf/events.h> | |
3685e022 | 31 | |
32 | /* To traverse a tree recursively */ | |
33 | #include <fcntl.h> | |
34 | #include <fts.h> | |
35 | ||
dc877563 | 36 | /* A trace is a sequence of events gathered in the same tracing session. The |
37 | events may be stored in several tracefiles in the same directory. | |
38 | A trace set is defined when several traces are to be analyzed together, | |
39 | possibly to study the interactions between events in the different traces. | |
40 | */ | |
41 | ||
dc877563 | 42 | |
7a4bdb54 | 43 | LttvTraceset *lttv_traceset_new(void) |
dc877563 | 44 | { |
90e19f82 | 45 | LttvTraceset *s; |
7a4bdb54 | 46 | struct bt_iter_pos begin_pos; |
dc877563 | 47 | |
90e19f82 AM |
48 | s = g_new(LttvTraceset, 1); |
49 | s->filename = NULL; | |
50 | s->traces = g_ptr_array_new(); | |
cbb811b3 | 51 | s->context = bt_context_create(); |
90e19f82 | 52 | s->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
7a4bdb54 YB |
53 | //TODO remove this when we have really mecanism |
54 | //s->tmpState = g_new(LttvTraceState *, 1); | |
55 | //lttv_trace_state_init(s->tmpState,0); | |
56 | begin_pos.type = BT_SEEK_BEGIN; | |
57 | ||
58 | //s->iter = bt_ctf_iter_create(lttv_traceset_get_context(s), | |
59 | // &begin_pos, | |
60 | // NULL); | |
61 | s->iter = 0; | |
62 | s->event_hooks = lttv_hooks_new(); | |
63 | ||
64 | ||
65 | ||
66 | ||
90e19f82 | 67 | return s; |
dc877563 | 68 | } |
69 | ||
49bf71b5 | 70 | char * lttv_traceset_name(LttvTraceset * s) |
71 | { | |
90e19f82 | 72 | return s->filename; |
49bf71b5 | 73 | } |
74 | ||
2bc1bcfb | 75 | #ifdef BABEL_CLEANUP |
76 | LttvTrace *lttv_trace_new(LttTrace *t) | |
308711e5 | 77 | { |
90e19f82 | 78 | LttvTrace *new_trace; |
308711e5 | 79 | |
90e19f82 AM |
80 | new_trace = g_new(LttvTrace, 1); |
81 | new_trace->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); | |
2bc1bcfb | 82 | new_trace->id = t; |
90e19f82 AM |
83 | new_trace->ref_count = 0; |
84 | return new_trace; | |
308711e5 | 85 | } |
2bc1bcfb | 86 | #endif |
308711e5 | 87 | |
2bc1bcfb | 88 | /* |
89 | * lttv_trace_create : Create a trace from a path | |
90 | * | |
91 | * ts is the traceset in which will be contained the trace | |
92 | * | |
93 | * path is the path where to find a trace. It is not recursive. | |
94 | * | |
95 | * This function is static since a trace should always be contained in a | |
96 | * traceset. | |
97 | * | |
98 | * return the created trace or NULL on failure | |
99 | */ | |
100 | static LttvTrace *lttv_trace_create(LttvTraceset *ts, const char *path) | |
101 | { | |
102 | int id = bt_context_add_trace(lttv_traceset_get_context(ts), | |
103 | path, | |
104 | "ctf", | |
105 | NULL, | |
106 | NULL, | |
107 | NULL); | |
108 | if (id < 0) { | |
109 | return NULL; | |
110 | } | |
111 | // Create the trace and save the trace handle id returned by babeltrace | |
112 | LttvTrace *new_trace; | |
113 | ||
114 | new_trace = g_new(LttvTrace, 1); | |
115 | new_trace->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); | |
116 | new_trace->id = id; | |
117 | new_trace->ref_count = 0; | |
7a4bdb54 YB |
118 | new_trace->traceset = ts; |
119 | new_trace->state = g_new(LttvTraceState,1); | |
120 | lttv_trace_state_init(new_trace->state,new_trace); | |
121 | ts->tmpState = new_trace->state; | |
2bc1bcfb | 122 | return new_trace; |
123 | } | |
124 | ||
125 | /* | |
126 | * lttv_trace_create : Create and add a single trace to a traceset | |
127 | * | |
128 | * ts is the traceset in which will be contained the trace | |
129 | * | |
130 | * path is the path where to find a trace. It is not recursive. | |
131 | * | |
132 | * return a positive integer (>=0)on success or -1 on failure | |
133 | */ | |
134 | static int lttv_traceset_create_trace(LttvTraceset *ts, const char *path) | |
135 | { | |
136 | LttvTrace *trace = lttv_trace_create(ts, path); | |
137 | if (trace == NULL) { | |
138 | return -1; | |
139 | } | |
140 | lttv_traceset_add(ts, trace); | |
141 | return 0; | |
142 | } | |
308711e5 | 143 | |
f7afe191 | 144 | LttvTraceset *lttv_traceset_copy(LttvTraceset *s_orig) |
145 | { | |
90e19f82 AM |
146 | guint i; |
147 | LttvTraceset *s; | |
148 | LttvTrace * trace; | |
f7afe191 | 149 | |
90e19f82 AM |
150 | s = g_new(LttvTraceset, 1); |
151 | s->filename = NULL; | |
152 | s->traces = g_ptr_array_new(); | |
153 | for(i=0;i<s_orig->traces->len;i++) | |
154 | { | |
155 | trace = g_ptr_array_index(s_orig->traces, i); | |
156 | trace->ref_count++; | |
2176f952 | 157 | |
7a4bdb54 | 158 | /* WARNING: this is an alias, not a copy. */ |
90e19f82 AM |
159 | g_ptr_array_add(s->traces, trace); |
160 | } | |
cbb811b3 YB |
161 | s->context = s_orig->context; |
162 | bt_context_get(s->context); | |
90e19f82 AM |
163 | s->a = LTTV_ATTRIBUTE(lttv_iattribute_deep_copy(LTTV_IATTRIBUTE(s_orig->a))); |
164 | return s; | |
f7afe191 | 165 | } |
dc877563 | 166 | |
f7afe191 | 167 | |
168 | LttvTraceset *lttv_traceset_load(const gchar *filename) | |
169 | { | |
90e19f82 AM |
170 | LttvTraceset *s = g_new(LttvTraceset,1); |
171 | FILE *tf; | |
f7afe191 | 172 | |
90e19f82 AM |
173 | s->filename = g_strdup(filename); |
174 | tf = fopen(filename,"r"); | |
175 | ||
176 | g_critical("NOT IMPLEMENTED : load traceset data from a XML file"); | |
177 | ||
178 | fclose(tf); | |
179 | return s; | |
f7afe191 | 180 | } |
181 | ||
182 | gint lttv_traceset_save(LttvTraceset *s) | |
183 | { | |
90e19f82 | 184 | FILE *tf; |
f7afe191 | 185 | |
90e19f82 | 186 | tf = fopen(s->filename, "w"); |
f7afe191 | 187 | |
90e19f82 AM |
188 | g_critical("NOT IMPLEMENTED : save traceset data in a XML file"); |
189 | ||
190 | fclose(tf); | |
191 | return 0; | |
f7afe191 | 192 | } |
308711e5 | 193 | |
ba576a78 | 194 | void lttv_traceset_destroy(LttvTraceset *s) |
dc877563 | 195 | { |
90e19f82 | 196 | guint i; |
5e2c04a2 | 197 | |
90e19f82 AM |
198 | for(i=0;i<s->traces->len;i++) { |
199 | LttvTrace *trace = g_ptr_array_index(s->traces, i); | |
200 | lttv_trace_unref(trace); | |
2bc1bcfb | 201 | // todo mdenis 2012-03-27: uncomment when babeltrace gets fixed |
202 | //bt_context_remove_trace(lttv_traceset_get_context(s), trace->id); | |
90e19f82 AM |
203 | if(lttv_trace_get_ref_number(trace) == 0) |
204 | lttv_trace_destroy(trace); | |
205 | } | |
206 | g_ptr_array_free(s->traces, TRUE); | |
cbb811b3 | 207 | bt_context_put(s->context); |
90e19f82 AM |
208 | g_object_unref(s->a); |
209 | g_free(s); | |
dc877563 | 210 | } |
211 | ||
922581a4 YB |
212 | struct bt_context *lttv_traceset_get_context(LttvTraceset *s) |
213 | { | |
214 | return s->context; | |
215 | } | |
216 | ||
7a4bdb54 YB |
217 | LttvTraceset *lttv_trace_get_traceset(LttvTrace *trace) |
218 | { | |
219 | return trace->traceset; | |
220 | } | |
221 | ||
222 | LttvHooks *lttv_traceset_get_hooks(LttvTraceset *s) | |
223 | { | |
224 | return s->event_hooks; | |
225 | } | |
226 | ||
308711e5 | 227 | void lttv_trace_destroy(LttvTrace *t) |
228 | { | |
90e19f82 AM |
229 | g_object_unref(t->a); |
230 | g_free(t); | |
308711e5 | 231 | } |
232 | ||
233 | ||
234 | void lttv_traceset_add(LttvTraceset *s, LttvTrace *t) | |
dc877563 | 235 | { |
90e19f82 AM |
236 | t->ref_count++; |
237 | g_ptr_array_add(s->traces, t); | |
dc877563 | 238 | } |
239 | ||
3685e022 | 240 | int lttv_traceset_add_path(LttvTraceset *ts, char *trace_path) |
2bc1bcfb | 241 | { |
3685e022 | 242 | FTS *tree; |
243 | FTSENT *node; | |
244 | char * const paths[2] = { trace_path, NULL }; | |
245 | int ret = -1; | |
246 | ||
247 | tree = fts_open(paths, FTS_NOCHDIR | FTS_LOGICAL, 0); | |
248 | if (tree == NULL) { | |
249 | g_warning("Cannot traverse \"%s\" for reading.\n", | |
250 | trace_path); | |
251 | return ret; | |
252 | } | |
253 | ||
254 | int dirfd, metafd; | |
255 | while ((node = fts_read(tree))) { | |
256 | ||
257 | if (!(node->fts_info & FTS_D)) | |
258 | continue; | |
259 | ||
260 | dirfd = open(node->fts_accpath, 0); | |
261 | if (dirfd < 0) { | |
262 | g_warning("Unable to open trace " | |
263 | "directory file descriptor : %s.", node->fts_accpath); | |
264 | ret = dirfd; | |
265 | goto error; | |
266 | } | |
267 | ||
268 | // Check if a metadata file exists in the current directory | |
269 | metafd = openat(dirfd, "metadata", O_RDONLY); | |
270 | if (metafd < 0) { | |
271 | ret = close(dirfd); | |
272 | if (ret < 0) { | |
273 | g_warning("Unable to open metadata " | |
274 | "file descriptor : %s.", node->fts_accpath); | |
275 | goto error; | |
276 | } | |
277 | } else { | |
278 | ret = close(metafd); | |
279 | if (ret < 0) { | |
280 | g_warning("Unable to close metadata " | |
281 | "file descriptor : %s.", node->fts_accpath); | |
282 | goto error; | |
283 | } | |
284 | ret = close(dirfd); | |
285 | if (ret < 0) { | |
286 | g_warning("Unable to close trace " | |
287 | "directory file descriptor : %s.", node->fts_accpath); | |
288 | goto error; | |
289 | } | |
290 | ||
291 | ret = lttv_traceset_create_trace(ts, node->fts_accpath); | |
292 | if (ret < 0) { | |
293 | g_warning("Opening trace \"%s\" from %s " | |
294 | "for reading.", node->fts_accpath, trace_path); | |
295 | goto error; | |
296 | } | |
297 | } | |
298 | } | |
299 | ||
300 | error: | |
301 | ret = fts_close(tree); | |
302 | if (ret < 0) { | |
303 | g_warning("Unable to close tree " | |
304 | "file descriptor : %s.", trace_path); | |
305 | } | |
306 | return ret; | |
2bc1bcfb | 307 | } |
dc877563 | 308 | |
309 | unsigned lttv_traceset_number(LttvTraceset *s) | |
310 | { | |
90e19f82 | 311 | return s->traces->len; |
dc877563 | 312 | } |
313 | ||
314 | ||
308711e5 | 315 | LttvTrace *lttv_traceset_get(LttvTraceset *s, unsigned i) |
dc877563 | 316 | { |
90e19f82 AM |
317 | g_assert(s->traces->len > i); |
318 | return ((LttvTrace *)s->traces->pdata[i]); | |
dc877563 | 319 | } |
320 | ||
321 | ||
ba576a78 | 322 | void lttv_traceset_remove(LttvTraceset *s, unsigned i) |
dc877563 | 323 | { |
90e19f82 AM |
324 | LttvTrace * t; |
325 | g_assert(s->traces->len > i); | |
326 | t = (LttvTrace *)s->traces->pdata[i]; | |
327 | t->ref_count--; | |
2bc1bcfb | 328 | bt_context_remove_trace(lttv_traceset_get_context(s), t->id); |
90e19f82 | 329 | g_ptr_array_remove_index(s->traces, i); |
dc877563 | 330 | } |
331 | ||
332 | ||
333 | /* A set of attributes is attached to each trace set, trace and tracefile | |
90e19f82 | 334 | to store user defined data as needed. */ |
dc877563 | 335 | |
336 | LttvAttribute *lttv_traceset_attribute(LttvTraceset *s) | |
337 | { | |
90e19f82 | 338 | return s->a; |
dc877563 | 339 | } |
340 | ||
341 | ||
308711e5 | 342 | LttvAttribute *lttv_trace_attribute(LttvTrace *t) |
343 | { | |
90e19f82 | 344 | return t->a; |
308711e5 | 345 | } |
346 | ||
2bc1bcfb | 347 | #ifdef BABEL_CLEANUP |
308711e5 | 348 | LttTrace *lttv_trace(LttvTrace *t) |
dc877563 | 349 | { |
90e19f82 | 350 | return t->t; |
dc877563 | 351 | } |
2bc1bcfb | 352 | #endif |
353 | ||
354 | gint lttv_trace_get_id(LttvTrace *t) | |
355 | { | |
356 | return t->id; | |
357 | } | |
308711e5 | 358 | |
2176f952 | 359 | guint lttv_trace_get_ref_number(LttvTrace * t) |
360 | { | |
2bc1bcfb | 361 | // todo mdenis: adapt to babeltrace |
90e19f82 | 362 | return t->ref_count; |
2176f952 | 363 | } |
a43d67ba | 364 | |
365 | guint lttv_trace_ref(LttvTrace * t) | |
366 | { | |
90e19f82 AM |
367 | t->ref_count++; |
368 | ||
369 | return t->ref_count; | |
a43d67ba | 370 | } |
371 | ||
372 | guint lttv_trace_unref(LttvTrace * t) | |
373 | { | |
90e19f82 AM |
374 | if(likely(t->ref_count > 0)) |
375 | t->ref_count--; | |
a43d67ba | 376 | |
90e19f82 | 377 | return t->ref_count; |
a43d67ba | 378 | } |
379 | ||
7a4bdb54 YB |
380 | guint lttv_trace_get_num_cpu(LttvTrace *t) |
381 | { | |
382 | #warning "TODO - Set the right number of CPU" | |
383 | return 24; | |
384 | } | |
385 | ||
386 | LttvTracesetPosition *lttv_traceset_create_position(LttvTraceset *traceset) | |
387 | { | |
388 | #warning "TODO" | |
389 | return NULL; | |
390 | } | |
391 | ||
392 | void lttv_traceset_destroy_position(LttvTracesetPosition *traceset_pos) | |
393 | { | |
394 | #warning "TODO" | |
395 | return NULL; | |
396 | } | |
397 | ||
398 | void lttv_traceset_seek_to_position(LttvTracesetPosition *traceset_pos) | |
399 | { | |
400 | #warning "TODO" | |
401 | } | |
402 | ||
403 | guint lttv_traceset_get_cpuid_from_event(LttvEvent *event) | |
404 | { | |
405 | struct definition *scope; | |
406 | unsigned long timestamp; | |
407 | unsigned int cpu_id; | |
408 | ||
409 | struct bt_ctf_event *ctf_event = event->bt_event; | |
410 | timestamp = bt_ctf_get_timestamp(ctf_event); | |
411 | if (timestamp == -1ULL) { | |
412 | return 0; | |
413 | } | |
414 | scope = bt_ctf_get_top_level_scope(ctf_event, BT_STREAM_PACKET_CONTEXT); | |
415 | if (bt_ctf_field_get_error()) { | |
416 | return 0; | |
417 | } | |
418 | cpu_id = bt_ctf_get_uint64(bt_ctf_get_field(ctf_event, scope, "cpu_id")); | |
419 | if (bt_ctf_field_get_error()) { | |
420 | return 0; | |
421 | } else { | |
422 | return cpu_id; | |
423 | } | |
424 | } | |
425 | ||
426 | const char *lttv_traceset_get_name_from_event(LttvEvent *event) | |
427 | { | |
428 | return bt_ctf_event_name(event->bt_event); | |
429 | } |