Commit | Line | Data |
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1fc22eb4 JD |
1 | /* |
2 | * Copyright (C) 2011 Julien Desfossez | |
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 | * | |
71bd7ce1 AM |
13 | * You should have received a copy of the GNU General Public License along |
14 | * with this program; if not, write to the Free Software Foundation, Inc., | |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
1fc22eb4 JD |
16 | */ |
17 | ||
1dec520a | 18 | #include <babeltrace/ctf/events.h> |
1fc22eb4 | 19 | #include <stdlib.h> |
ceb3a221 | 20 | #include <linux/unistd.h> |
1fc22eb4 JD |
21 | #include <string.h> |
22 | #include "common.h" | |
23 | ||
3ba84bed | 24 | uint64_t get_cpu_id(const struct bt_ctf_event *event) |
d67167cd | 25 | { |
3ba84bed | 26 | const struct definition *scope; |
d67167cd JD |
27 | uint64_t cpu_id; |
28 | ||
29 | scope = bt_ctf_get_top_level_scope(event, BT_STREAM_PACKET_CONTEXT); | |
30 | cpu_id = bt_ctf_get_uint64(bt_ctf_get_field(event, scope, "cpu_id")); | |
31 | if (bt_ctf_field_get_error()) { | |
32 | fprintf(stderr, "[error] get cpu_id\n"); | |
33 | return -1ULL; | |
34 | } | |
35 | ||
36 | return cpu_id; | |
37 | } | |
38 | ||
3ba84bed | 39 | uint64_t get_context_tid(const struct bt_ctf_event *event) |
1dec520a | 40 | { |
3ba84bed | 41 | const struct definition *scope; |
1dec520a JD |
42 | uint64_t tid; |
43 | ||
44 | scope = bt_ctf_get_top_level_scope(event, BT_STREAM_EVENT_CONTEXT); | |
45 | tid = bt_ctf_get_int64(bt_ctf_get_field(event, | |
46 | scope, "_tid")); | |
47 | if (bt_ctf_field_get_error()) { | |
48 | fprintf(stderr, "Missing tid context info\n"); | |
49 | return -1ULL; | |
50 | } | |
51 | ||
52 | return tid; | |
53 | } | |
54 | ||
3ba84bed | 55 | uint64_t get_context_pid(const struct bt_ctf_event *event) |
1dec520a | 56 | { |
3ba84bed | 57 | const struct definition *scope; |
1dec520a JD |
58 | uint64_t pid; |
59 | ||
60 | scope = bt_ctf_get_top_level_scope(event, BT_STREAM_EVENT_CONTEXT); | |
61 | pid = bt_ctf_get_int64(bt_ctf_get_field(event, | |
62 | scope, "_pid")); | |
63 | if (bt_ctf_field_get_error()) { | |
64 | fprintf(stderr, "Missing pid context info\n"); | |
65 | return -1ULL; | |
66 | } | |
67 | ||
68 | return pid; | |
69 | } | |
70 | ||
3ba84bed | 71 | uint64_t get_context_ppid(const struct bt_ctf_event *event) |
1dec520a | 72 | { |
3ba84bed | 73 | const struct definition *scope; |
1dec520a JD |
74 | uint64_t ppid; |
75 | ||
76 | scope = bt_ctf_get_top_level_scope(event, BT_STREAM_EVENT_CONTEXT); | |
77 | ppid = bt_ctf_get_int64(bt_ctf_get_field(event, | |
78 | scope, "_ppid")); | |
79 | if (bt_ctf_field_get_error()) { | |
80 | fprintf(stderr, "Missing ppid context info\n"); | |
81 | return -1ULL; | |
82 | } | |
83 | ||
84 | return ppid; | |
85 | } | |
86 | ||
3ba84bed | 87 | char *get_context_comm(const struct bt_ctf_event *event) |
1dec520a | 88 | { |
3ba84bed | 89 | const struct definition *scope; |
1dec520a JD |
90 | char *comm; |
91 | ||
92 | scope = bt_ctf_get_top_level_scope(event, BT_STREAM_EVENT_CONTEXT); | |
93 | comm = bt_ctf_get_char_array(bt_ctf_get_field(event, | |
94 | scope, "_procname")); | |
95 | if (bt_ctf_field_get_error()) { | |
96 | fprintf(stderr, "Missing comm context info\n"); | |
97 | return NULL; | |
98 | } | |
99 | ||
100 | return comm; | |
101 | } | |
102 | ||
1fc22eb4 JD |
103 | struct processtop *find_process_tid(struct lttngtop *ctx, int tid, char *comm) |
104 | { | |
105 | gint i; | |
106 | struct processtop *tmp; | |
107 | ||
108 | for (i = 0; i < ctx->process_table->len; i++) { | |
109 | tmp = g_ptr_array_index(ctx->process_table, i); | |
110 | if (tmp && tmp->tid == tid) | |
111 | return tmp; | |
112 | } | |
113 | return NULL; | |
114 | } | |
115 | ||
116 | struct processtop* add_proc(struct lttngtop *ctx, int tid, char *comm, | |
117 | unsigned long timestamp) | |
118 | { | |
119 | struct processtop *newproc; | |
120 | ||
121 | /* if the PID already exists, we just rename the process */ | |
122 | /* FIXME : need to integrate with clone/fork/exit to be accurate */ | |
123 | newproc = find_process_tid(ctx, tid, comm); | |
124 | if (!newproc) { | |
559c9f86 | 125 | newproc = g_new0(struct processtop, 1); |
1fc22eb4 JD |
126 | newproc->tid = tid; |
127 | newproc->birth = timestamp; | |
128 | newproc->process_files_table = g_ptr_array_new(); | |
ceb3a221 | 129 | newproc->files_history = NULL; |
b093de8a MB |
130 | newproc->totalfileread = 0; |
131 | newproc->totalfilewrite = 0; | |
132 | newproc->fileread = 0; | |
133 | newproc->filewrite = 0; | |
134 | newproc->syscall_info = NULL; | |
1fc22eb4 | 135 | newproc->threads = g_ptr_array_new(); |
85db4618 | 136 | newproc->perf = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 | 137 | g_ptr_array_add(ctx->process_table, newproc); |
e05a35a6 JD |
138 | |
139 | ctx->nbnewthreads++; | |
140 | ctx->nbthreads++; | |
1fc22eb4 JD |
141 | } |
142 | newproc->comm = strdup(comm); | |
143 | ||
144 | return newproc; | |
145 | } | |
146 | ||
147 | struct processtop* update_proc(struct processtop* proc, int pid, int tid, | |
148 | int ppid, char *comm) | |
149 | { | |
150 | if (proc) { | |
151 | proc->pid = pid; | |
152 | proc->tid = tid; | |
153 | proc->ppid = ppid; | |
154 | if (strcmp(proc->comm, comm) != 0) { | |
155 | free(proc->comm); | |
156 | proc->comm = strdup(comm); | |
157 | } | |
158 | } | |
159 | return proc; | |
160 | } | |
161 | ||
162 | /* | |
163 | * This function just sets the time of death of a process. | |
164 | * When we rotate the cputime we remove it from the process list. | |
165 | */ | |
166 | void death_proc(struct lttngtop *ctx, int tid, char *comm, | |
167 | unsigned long timestamp) | |
168 | { | |
169 | struct processtop *tmp; | |
170 | tmp = find_process_tid(ctx, tid, comm); | |
e05a35a6 | 171 | if (tmp && strcmp(tmp->comm, comm) == 0) { |
1fc22eb4 | 172 | tmp->death = timestamp; |
e05a35a6 JD |
173 | ctx->nbdeadthreads++; |
174 | ctx->nbthreads--; | |
175 | } | |
1fc22eb4 JD |
176 | } |
177 | ||
178 | struct processtop* get_proc(struct lttngtop *ctx, int tid, char *comm, | |
179 | unsigned long timestamp) | |
180 | { | |
181 | struct processtop *tmp; | |
182 | tmp = find_process_tid(ctx, tid, comm); | |
183 | if (tmp && strcmp(tmp->comm, comm) == 0) | |
184 | return tmp; | |
185 | return add_proc(ctx, tid, comm, timestamp); | |
186 | } | |
187 | ||
188 | void add_thread(struct processtop *parent, struct processtop *thread) | |
189 | { | |
190 | gint i; | |
191 | struct processtop *tmp; | |
192 | ||
193 | for (i = 0; i < parent->threads->len; i++) { | |
194 | tmp = g_ptr_array_index(parent->threads, i); | |
195 | if (tmp == thread) | |
196 | return; | |
197 | } | |
198 | g_ptr_array_add(parent->threads, thread); | |
199 | } | |
200 | ||
201 | struct cputime* add_cpu(int cpu) | |
202 | { | |
203 | struct cputime *newcpu; | |
204 | ||
559c9f86 | 205 | newcpu = g_new0(struct cputime, 1); |
1fc22eb4 JD |
206 | newcpu->id = cpu; |
207 | newcpu->current_task = NULL; | |
85db4618 | 208 | newcpu->perf = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
209 | |
210 | g_ptr_array_add(lttngtop.cpu_table, newcpu); | |
211 | ||
212 | return newcpu; | |
213 | } | |
214 | struct cputime* get_cpu(int cpu) | |
215 | { | |
216 | gint i; | |
217 | struct cputime *tmp; | |
218 | ||
219 | for (i = 0; i < lttngtop.cpu_table->len; i++) { | |
220 | tmp = g_ptr_array_index(lttngtop.cpu_table, i); | |
221 | if (tmp->id == cpu) | |
222 | return tmp; | |
223 | } | |
224 | ||
225 | return add_cpu(cpu); | |
226 | } | |
227 | ||
228 | /* | |
229 | * At the end of a sampling period, we need to display the cpu time for each | |
230 | * process and to reset it to zero for the next period | |
231 | */ | |
232 | void rotate_cputime(unsigned long end) | |
233 | { | |
234 | gint i; | |
235 | struct cputime *tmp; | |
236 | unsigned long elapsed; | |
237 | ||
238 | for (i = 0; i < lttngtop.cpu_table->len; i++) { | |
239 | tmp = g_ptr_array_index(lttngtop.cpu_table, i); | |
240 | elapsed = end - tmp->task_start; | |
241 | if (tmp->current_task) { | |
242 | tmp->current_task->totalcpunsec += elapsed; | |
243 | tmp->current_task->threadstotalcpunsec += elapsed; | |
244 | if (tmp->current_task->pid != tmp->current_task->tid && | |
245 | tmp->current_task->threadparent) { | |
246 | tmp->current_task->threadparent->threadstotalcpunsec += elapsed; | |
247 | } | |
248 | } | |
249 | tmp->task_start = end; | |
250 | } | |
251 | } | |
252 | ||
253 | void reset_perf_counter(gpointer key, gpointer value, gpointer user_data) | |
254 | { | |
255 | ((struct perfcounter*) value)->count = 0; | |
256 | } | |
257 | ||
258 | void copy_perf_counter(gpointer key, gpointer value, gpointer new_table) | |
259 | { | |
260 | struct perfcounter *newperf; | |
261 | ||
559c9f86 | 262 | newperf = g_new0(struct perfcounter, 1); |
1fc22eb4 JD |
263 | newperf->count = ((struct perfcounter *) value)->count; |
264 | newperf->visible = ((struct perfcounter *) value)->visible; | |
265 | newperf->sort = ((struct perfcounter *) value)->sort; | |
85db4618 | 266 | g_hash_table_insert((GHashTable *) new_table, strdup(key), newperf); |
1fc22eb4 JD |
267 | } |
268 | ||
269 | void rotate_perfcounter() { | |
270 | int i; | |
271 | struct processtop *tmp; | |
272 | for (i = 0; i < lttngtop.process_table->len; i++) { | |
273 | tmp = g_ptr_array_index(lttngtop.process_table, i); | |
274 | g_hash_table_foreach(tmp->perf, reset_perf_counter, NULL); | |
275 | } | |
276 | } | |
277 | ||
278 | void cleanup_processtop() | |
279 | { | |
b093de8a | 280 | gint i, j; |
1fc22eb4 | 281 | struct processtop *tmp; |
b093de8a | 282 | struct files *tmpf; /* a temporary file */ |
1fc22eb4 JD |
283 | |
284 | for (i = 0; i < lttngtop.process_table->len; i++) { | |
285 | tmp = g_ptr_array_index(lttngtop.process_table, i); | |
286 | tmp->totalcpunsec = 0; | |
287 | tmp->threadstotalcpunsec = 0; | |
b093de8a MB |
288 | tmp->fileread = 0; |
289 | tmp->filewrite = 0; | |
290 | ||
291 | for (j = 0; j < tmp->process_files_table->len; j++) { | |
292 | tmpf = g_ptr_array_index(tmp->process_files_table, j); | |
293 | if (tmpf != NULL) { | |
294 | tmpf->read = 0; | |
295 | tmpf->write = 0; | |
ceb3a221 MB |
296 | |
297 | if (tmpf->flag == __NR_close) | |
298 | g_ptr_array_index( | |
299 | tmp->process_files_table, j | |
300 | ) = NULL; | |
b093de8a MB |
301 | } |
302 | } | |
1fc22eb4 JD |
303 | } |
304 | } | |
305 | ||
e05a35a6 JD |
306 | void reset_global_counters() |
307 | { | |
308 | lttngtop.nbnewproc = 0; | |
309 | lttngtop.nbdeadproc = 0; | |
310 | lttngtop.nbnewthreads = 0; | |
311 | lttngtop.nbdeadthreads = 0; | |
312 | lttngtop.nbnewfiles = 0; | |
313 | lttngtop.nbclosedfiles = 0; | |
314 | } | |
315 | ||
316 | void copy_global_counters(struct lttngtop *dst) | |
317 | { | |
318 | dst->nbproc = lttngtop.nbproc; | |
319 | dst->nbnewproc = lttngtop.nbnewproc; | |
320 | dst->nbdeadproc = lttngtop.nbdeadproc; | |
321 | dst->nbthreads = lttngtop.nbthreads; | |
322 | dst->nbnewthreads = lttngtop.nbnewthreads; | |
323 | dst->nbdeadthreads = lttngtop.nbdeadthreads; | |
324 | dst->nbfiles = lttngtop.nbfiles; | |
325 | dst->nbnewfiles = lttngtop.nbnewfiles; | |
326 | dst->nbclosedfiles = lttngtop.nbclosedfiles; | |
327 | reset_global_counters(); | |
328 | } | |
329 | ||
1fc22eb4 JD |
330 | struct lttngtop* get_copy_lttngtop(unsigned long start, unsigned long end) |
331 | { | |
332 | gint i, j; | |
333 | unsigned long time; | |
334 | struct lttngtop *dst; | |
335 | struct processtop *tmp, *tmp2, *new; | |
336 | struct cputime *tmpcpu, *newcpu; | |
337 | struct files *tmpfile, *newfile; | |
338 | ||
559c9f86 | 339 | dst = g_new0(struct lttngtop, 1); |
1fc22eb4 JD |
340 | dst->start = start; |
341 | dst->end = end; | |
e05a35a6 | 342 | copy_global_counters(dst); |
1fc22eb4 JD |
343 | dst->process_table = g_ptr_array_new(); |
344 | dst->files_table = g_ptr_array_new(); | |
345 | dst->cpu_table = g_ptr_array_new(); | |
85db4618 | 346 | dst->perf_list = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
347 | |
348 | rotate_cputime(end); | |
349 | ||
350 | g_hash_table_foreach(lttngtop.perf_list, copy_perf_counter, dst->perf_list); | |
351 | for (i = 0; i < lttngtop.process_table->len; i++) { | |
352 | tmp = g_ptr_array_index(lttngtop.process_table, i); | |
559c9f86 | 353 | new = g_new0(struct processtop, 1); |
1fc22eb4 JD |
354 | |
355 | memcpy(new, tmp, sizeof(struct processtop)); | |
356 | new->threads = g_ptr_array_new(); | |
357 | new->comm = strdup(tmp->comm); | |
358 | new->process_files_table = g_ptr_array_new(); | |
ceb3a221 | 359 | new->files_history = tmp->files_history; |
85db4618 | 360 | new->perf = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
361 | g_hash_table_foreach(tmp->perf, copy_perf_counter, new->perf); |
362 | ||
1fc22eb4 | 363 | /* compute the stream speed */ |
85db4618 JD |
364 | if (end - start != 0) { |
365 | time = (end - start) / NSEC_PER_SEC; | |
b093de8a MB |
366 | new->fileread = new->fileread/(time); |
367 | new->filewrite = new->filewrite/(time); | |
1fc22eb4 JD |
368 | } |
369 | ||
370 | for (j = 0; j < tmp->process_files_table->len; j++) { | |
371 | tmpfile = g_ptr_array_index(tmp->process_files_table, j); | |
1fc22eb4 | 372 | |
b093de8a MB |
373 | newfile = malloc(sizeof(struct files)); |
374 | ||
375 | if (tmpfile != NULL) { | |
376 | memcpy(newfile, tmpfile, sizeof(struct files)); | |
377 | newfile->name = strdup(tmpfile->name); | |
378 | newfile->ref = new; | |
379 | g_ptr_array_add(new->process_files_table, | |
380 | newfile); | |
381 | g_ptr_array_add(dst->files_table, newfile); | |
382 | } else { | |
383 | g_ptr_array_add(new->process_files_table, NULL); | |
384 | g_ptr_array_add(dst->files_table, NULL); | |
385 | } | |
1fc22eb4 JD |
386 | /* |
387 | * if the process died during the last period, we remove all | |
388 | * files associated with if after the copy | |
389 | */ | |
390 | if (tmp->death > 0 && tmp->death < end) { | |
e05a35a6 | 391 | /* FIXME : close the files before */ |
1fc22eb4 | 392 | g_ptr_array_remove(tmp->process_files_table, tmpfile); |
559c9f86 | 393 | g_free(tmpfile); |
1fc22eb4 JD |
394 | } |
395 | } | |
396 | g_ptr_array_add(dst->process_table, new); | |
397 | ||
398 | /* | |
399 | * if the process died during the last period, we remove it from | |
400 | * the current process list after the copy | |
401 | */ | |
402 | if (tmp->death > 0 && tmp->death < end) { | |
e05a35a6 | 403 | fprintf(stderr, "removing : %ld : %d %s\n", end, tmp->tid, tmp->comm); |
1fc22eb4 | 404 | g_ptr_array_remove(lttngtop.process_table, tmp); |
85db4618 | 405 | /* FIXME : TRUE does not mean clears the object in it */ |
1fc22eb4 JD |
406 | g_ptr_array_free(tmp->threads, TRUE); |
407 | free(tmp->comm); | |
408 | g_ptr_array_free(tmp->process_files_table, TRUE); | |
85db4618 | 409 | /* FIXME : clear elements */ |
1fc22eb4 | 410 | g_hash_table_destroy(tmp->perf); |
559c9f86 | 411 | g_free(tmp); |
1fc22eb4 JD |
412 | } |
413 | } | |
414 | rotate_perfcounter(); | |
415 | ||
416 | for (i = 0; i < lttngtop.cpu_table->len; i++) { | |
417 | tmpcpu = g_ptr_array_index(lttngtop.cpu_table, i); | |
559c9f86 | 418 | newcpu = g_new0(struct cputime, 1); |
1fc22eb4 | 419 | memcpy(newcpu, tmpcpu, sizeof(struct cputime)); |
85db4618 | 420 | newcpu->perf = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
421 | g_hash_table_foreach(tmpcpu->perf, copy_perf_counter, newcpu->perf); |
422 | /* | |
423 | * note : we don't care about the current process pointer in the copy | |
424 | * so the reference is invalid after the memcpy | |
425 | */ | |
426 | g_ptr_array_add(dst->cpu_table, newcpu); | |
427 | } | |
85db4618 | 428 | /* FIXME : better algo */ |
1fc22eb4 JD |
429 | /* create the threads index if required */ |
430 | for (i = 0; i < dst->process_table->len; i++) { | |
431 | tmp = g_ptr_array_index(dst->process_table, i); | |
432 | if (tmp->pid == tmp->tid) { | |
433 | for (j = 0; j < dst->process_table->len; j++) { | |
434 | tmp2 = g_ptr_array_index(dst->process_table, j); | |
435 | if (tmp2->pid == tmp->pid) { | |
436 | tmp2->threadparent = tmp; | |
437 | g_ptr_array_add(tmp->threads, tmp2); | |
438 | } | |
439 | } | |
440 | } | |
441 | } | |
442 | ||
443 | // update_global_stats(dst); | |
444 | cleanup_processtop(); | |
445 | ||
446 | return dst; | |
447 | } | |
448 |