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(); | |
115c78c2 | 63 | s->state_trace_handle_index = g_ptr_array_new(); |
7a4bdb54 YB |
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); | |
115c78c2 YB |
121 | |
122 | /* Add the state to the trace_handle to state index */ | |
123 | g_ptr_array_set_size(ts->state_trace_handle_index,id+1); | |
124 | g_ptr_array_index(ts->state_trace_handle_index,id) = new_trace->state; | |
125 | ||
2bc1bcfb | 126 | return new_trace; |
127 | } | |
128 | ||
129 | /* | |
130 | * lttv_trace_create : Create and add a single trace to a traceset | |
131 | * | |
132 | * ts is the traceset in which will be contained the trace | |
133 | * | |
134 | * path is the path where to find a trace. It is not recursive. | |
135 | * | |
136 | * return a positive integer (>=0)on success or -1 on failure | |
137 | */ | |
138 | static int lttv_traceset_create_trace(LttvTraceset *ts, const char *path) | |
139 | { | |
140 | LttvTrace *trace = lttv_trace_create(ts, path); | |
141 | if (trace == NULL) { | |
142 | return -1; | |
143 | } | |
144 | lttv_traceset_add(ts, trace); | |
145 | return 0; | |
146 | } | |
308711e5 | 147 | |
f7afe191 | 148 | LttvTraceset *lttv_traceset_copy(LttvTraceset *s_orig) |
149 | { | |
90e19f82 AM |
150 | guint i; |
151 | LttvTraceset *s; | |
152 | LttvTrace * trace; | |
f7afe191 | 153 | |
90e19f82 AM |
154 | s = g_new(LttvTraceset, 1); |
155 | s->filename = NULL; | |
156 | s->traces = g_ptr_array_new(); | |
115c78c2 | 157 | s->state_trace_handle_index = g_ptr_array_new(); |
90e19f82 AM |
158 | for(i=0;i<s_orig->traces->len;i++) |
159 | { | |
160 | trace = g_ptr_array_index(s_orig->traces, i); | |
161 | trace->ref_count++; | |
2176f952 | 162 | |
7a4bdb54 | 163 | /* WARNING: this is an alias, not a copy. */ |
90e19f82 | 164 | g_ptr_array_add(s->traces, trace); |
115c78c2 YB |
165 | |
166 | g_ptr_array_set_size(s->state_trace_handle_index,trace->id+1); | |
167 | g_ptr_array_index(s->state_trace_handle_index,trace->id) = trace->state; | |
168 | ||
90e19f82 | 169 | } |
cbb811b3 YB |
170 | s->context = s_orig->context; |
171 | bt_context_get(s->context); | |
90e19f82 AM |
172 | s->a = LTTV_ATTRIBUTE(lttv_iattribute_deep_copy(LTTV_IATTRIBUTE(s_orig->a))); |
173 | return s; | |
f7afe191 | 174 | } |
dc877563 | 175 | |
f7afe191 | 176 | |
177 | LttvTraceset *lttv_traceset_load(const gchar *filename) | |
178 | { | |
90e19f82 AM |
179 | LttvTraceset *s = g_new(LttvTraceset,1); |
180 | FILE *tf; | |
f7afe191 | 181 | |
90e19f82 AM |
182 | s->filename = g_strdup(filename); |
183 | tf = fopen(filename,"r"); | |
184 | ||
185 | g_critical("NOT IMPLEMENTED : load traceset data from a XML file"); | |
186 | ||
187 | fclose(tf); | |
188 | return s; | |
f7afe191 | 189 | } |
190 | ||
191 | gint lttv_traceset_save(LttvTraceset *s) | |
192 | { | |
90e19f82 | 193 | FILE *tf; |
f7afe191 | 194 | |
90e19f82 | 195 | tf = fopen(s->filename, "w"); |
f7afe191 | 196 | |
90e19f82 AM |
197 | g_critical("NOT IMPLEMENTED : save traceset data in a XML file"); |
198 | ||
199 | fclose(tf); | |
200 | return 0; | |
f7afe191 | 201 | } |
308711e5 | 202 | |
ba576a78 | 203 | void lttv_traceset_destroy(LttvTraceset *s) |
dc877563 | 204 | { |
90e19f82 | 205 | guint i; |
5e2c04a2 | 206 | |
90e19f82 AM |
207 | for(i=0;i<s->traces->len;i++) { |
208 | LttvTrace *trace = g_ptr_array_index(s->traces, i); | |
209 | lttv_trace_unref(trace); | |
2bc1bcfb | 210 | // todo mdenis 2012-03-27: uncomment when babeltrace gets fixed |
211 | //bt_context_remove_trace(lttv_traceset_get_context(s), trace->id); | |
90e19f82 AM |
212 | if(lttv_trace_get_ref_number(trace) == 0) |
213 | lttv_trace_destroy(trace); | |
214 | } | |
215 | g_ptr_array_free(s->traces, TRUE); | |
cbb811b3 | 216 | bt_context_put(s->context); |
90e19f82 AM |
217 | g_object_unref(s->a); |
218 | g_free(s); | |
dc877563 | 219 | } |
220 | ||
922581a4 YB |
221 | struct bt_context *lttv_traceset_get_context(LttvTraceset *s) |
222 | { | |
223 | return s->context; | |
224 | } | |
225 | ||
7a4bdb54 YB |
226 | LttvTraceset *lttv_trace_get_traceset(LttvTrace *trace) |
227 | { | |
228 | return trace->traceset; | |
229 | } | |
230 | ||
231 | LttvHooks *lttv_traceset_get_hooks(LttvTraceset *s) | |
232 | { | |
233 | return s->event_hooks; | |
234 | } | |
235 | ||
308711e5 | 236 | void lttv_trace_destroy(LttvTrace *t) |
237 | { | |
90e19f82 AM |
238 | g_object_unref(t->a); |
239 | g_free(t); | |
308711e5 | 240 | } |
241 | ||
242 | ||
243 | void lttv_traceset_add(LttvTraceset *s, LttvTrace *t) | |
dc877563 | 244 | { |
90e19f82 AM |
245 | t->ref_count++; |
246 | g_ptr_array_add(s->traces, t); | |
dc877563 | 247 | } |
248 | ||
3685e022 | 249 | int lttv_traceset_add_path(LttvTraceset *ts, char *trace_path) |
2bc1bcfb | 250 | { |
3685e022 | 251 | FTS *tree; |
252 | FTSENT *node; | |
253 | char * const paths[2] = { trace_path, NULL }; | |
254 | int ret = -1; | |
255 | ||
256 | tree = fts_open(paths, FTS_NOCHDIR | FTS_LOGICAL, 0); | |
257 | if (tree == NULL) { | |
258 | g_warning("Cannot traverse \"%s\" for reading.\n", | |
259 | trace_path); | |
260 | return ret; | |
261 | } | |
262 | ||
263 | int dirfd, metafd; | |
264 | while ((node = fts_read(tree))) { | |
265 | ||
266 | if (!(node->fts_info & FTS_D)) | |
267 | continue; | |
268 | ||
269 | dirfd = open(node->fts_accpath, 0); | |
270 | if (dirfd < 0) { | |
271 | g_warning("Unable to open trace " | |
272 | "directory file descriptor : %s.", node->fts_accpath); | |
273 | ret = dirfd; | |
274 | goto error; | |
275 | } | |
276 | ||
277 | // Check if a metadata file exists in the current directory | |
278 | metafd = openat(dirfd, "metadata", O_RDONLY); | |
279 | if (metafd < 0) { | |
280 | ret = close(dirfd); | |
281 | if (ret < 0) { | |
282 | g_warning("Unable to open metadata " | |
283 | "file descriptor : %s.", node->fts_accpath); | |
284 | goto error; | |
285 | } | |
286 | } else { | |
287 | ret = close(metafd); | |
288 | if (ret < 0) { | |
289 | g_warning("Unable to close metadata " | |
290 | "file descriptor : %s.", node->fts_accpath); | |
291 | goto error; | |
292 | } | |
293 | ret = close(dirfd); | |
294 | if (ret < 0) { | |
295 | g_warning("Unable to close trace " | |
296 | "directory file descriptor : %s.", node->fts_accpath); | |
297 | goto error; | |
298 | } | |
299 | ||
300 | ret = lttv_traceset_create_trace(ts, node->fts_accpath); | |
301 | if (ret < 0) { | |
302 | g_warning("Opening trace \"%s\" from %s " | |
303 | "for reading.", node->fts_accpath, trace_path); | |
304 | goto error; | |
305 | } | |
306 | } | |
307 | } | |
308 | ||
309 | error: | |
310 | ret = fts_close(tree); | |
311 | if (ret < 0) { | |
312 | g_warning("Unable to close tree " | |
313 | "file descriptor : %s.", trace_path); | |
314 | } | |
315 | return ret; | |
2bc1bcfb | 316 | } |
dc877563 | 317 | |
318 | unsigned lttv_traceset_number(LttvTraceset *s) | |
319 | { | |
90e19f82 | 320 | return s->traces->len; |
dc877563 | 321 | } |
322 | ||
323 | ||
308711e5 | 324 | LttvTrace *lttv_traceset_get(LttvTraceset *s, unsigned i) |
dc877563 | 325 | { |
90e19f82 AM |
326 | g_assert(s->traces->len > i); |
327 | return ((LttvTrace *)s->traces->pdata[i]); | |
dc877563 | 328 | } |
329 | ||
330 | ||
ba576a78 | 331 | void lttv_traceset_remove(LttvTraceset *s, unsigned i) |
dc877563 | 332 | { |
90e19f82 AM |
333 | LttvTrace * t; |
334 | g_assert(s->traces->len > i); | |
335 | t = (LttvTrace *)s->traces->pdata[i]; | |
336 | t->ref_count--; | |
2bc1bcfb | 337 | bt_context_remove_trace(lttv_traceset_get_context(s), t->id); |
90e19f82 | 338 | g_ptr_array_remove_index(s->traces, i); |
dc877563 | 339 | } |
340 | ||
341 | ||
342 | /* A set of attributes is attached to each trace set, trace and tracefile | |
90e19f82 | 343 | to store user defined data as needed. */ |
dc877563 | 344 | |
345 | LttvAttribute *lttv_traceset_attribute(LttvTraceset *s) | |
346 | { | |
90e19f82 | 347 | return s->a; |
dc877563 | 348 | } |
349 | ||
350 | ||
308711e5 | 351 | LttvAttribute *lttv_trace_attribute(LttvTrace *t) |
352 | { | |
90e19f82 | 353 | return t->a; |
308711e5 | 354 | } |
355 | ||
2bc1bcfb | 356 | #ifdef BABEL_CLEANUP |
308711e5 | 357 | LttTrace *lttv_trace(LttvTrace *t) |
dc877563 | 358 | { |
90e19f82 | 359 | return t->t; |
dc877563 | 360 | } |
2bc1bcfb | 361 | #endif |
362 | ||
363 | gint lttv_trace_get_id(LttvTrace *t) | |
364 | { | |
365 | return t->id; | |
366 | } | |
308711e5 | 367 | |
2176f952 | 368 | guint lttv_trace_get_ref_number(LttvTrace * t) |
369 | { | |
2bc1bcfb | 370 | // todo mdenis: adapt to babeltrace |
90e19f82 | 371 | return t->ref_count; |
2176f952 | 372 | } |
a43d67ba | 373 | |
374 | guint lttv_trace_ref(LttvTrace * t) | |
375 | { | |
90e19f82 AM |
376 | t->ref_count++; |
377 | ||
378 | return t->ref_count; | |
a43d67ba | 379 | } |
380 | ||
381 | guint lttv_trace_unref(LttvTrace * t) | |
382 | { | |
90e19f82 AM |
383 | if(likely(t->ref_count > 0)) |
384 | t->ref_count--; | |
a43d67ba | 385 | |
90e19f82 | 386 | return t->ref_count; |
a43d67ba | 387 | } |
388 | ||
7a4bdb54 YB |
389 | guint lttv_trace_get_num_cpu(LttvTrace *t) |
390 | { | |
391 | #warning "TODO - Set the right number of CPU" | |
392 | return 24; | |
393 | } | |
394 | ||
395 | LttvTracesetPosition *lttv_traceset_create_position(LttvTraceset *traceset) | |
396 | { | |
397 | #warning "TODO" | |
398 | return NULL; | |
399 | } | |
400 | ||
401 | void lttv_traceset_destroy_position(LttvTracesetPosition *traceset_pos) | |
402 | { | |
403 | #warning "TODO" | |
404 | return NULL; | |
405 | } | |
406 | ||
407 | void lttv_traceset_seek_to_position(LttvTracesetPosition *traceset_pos) | |
408 | { | |
409 | #warning "TODO" | |
410 | } | |
411 | ||
412 | guint lttv_traceset_get_cpuid_from_event(LttvEvent *event) | |
413 | { | |
414 | struct definition *scope; | |
415 | unsigned long timestamp; | |
416 | unsigned int cpu_id; | |
417 | ||
418 | struct bt_ctf_event *ctf_event = event->bt_event; | |
419 | timestamp = bt_ctf_get_timestamp(ctf_event); | |
420 | if (timestamp == -1ULL) { | |
421 | return 0; | |
422 | } | |
423 | scope = bt_ctf_get_top_level_scope(ctf_event, BT_STREAM_PACKET_CONTEXT); | |
424 | if (bt_ctf_field_get_error()) { | |
425 | return 0; | |
426 | } | |
427 | cpu_id = bt_ctf_get_uint64(bt_ctf_get_field(ctf_event, scope, "cpu_id")); | |
428 | if (bt_ctf_field_get_error()) { | |
429 | return 0; | |
430 | } else { | |
431 | return cpu_id; | |
432 | } | |
433 | } | |
434 | ||
435 | const char *lttv_traceset_get_name_from_event(LttvEvent *event) | |
436 | { | |
437 | return bt_ctf_event_name(event->bt_event); | |
438 | } |