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 | ||
59288610 MB |
103 | /* |
104 | * To get the parent process, put the pid in the tid field | |
105 | * because the parent process gets pid = tid | |
106 | * | |
107 | * FIXME : char *comm useful ??? | |
108 | */ | |
1fc22eb4 JD |
109 | struct processtop *find_process_tid(struct lttngtop *ctx, int tid, char *comm) |
110 | { | |
111 | gint i; | |
112 | struct processtop *tmp; | |
113 | ||
114 | for (i = 0; i < ctx->process_table->len; i++) { | |
115 | tmp = g_ptr_array_index(ctx->process_table, i); | |
116 | if (tmp && tmp->tid == tid) | |
117 | return tmp; | |
118 | } | |
119 | return NULL; | |
120 | } | |
121 | ||
122 | struct processtop* add_proc(struct lttngtop *ctx, int tid, char *comm, | |
123 | unsigned long timestamp) | |
124 | { | |
125 | struct processtop *newproc; | |
126 | ||
127 | /* if the PID already exists, we just rename the process */ | |
128 | /* FIXME : need to integrate with clone/fork/exit to be accurate */ | |
129 | newproc = find_process_tid(ctx, tid, comm); | |
130 | if (!newproc) { | |
559c9f86 | 131 | newproc = g_new0(struct processtop, 1); |
1fc22eb4 JD |
132 | newproc->tid = tid; |
133 | newproc->birth = timestamp; | |
134 | newproc->process_files_table = g_ptr_array_new(); | |
ceb3a221 | 135 | newproc->files_history = NULL; |
b093de8a MB |
136 | newproc->totalfileread = 0; |
137 | newproc->totalfilewrite = 0; | |
138 | newproc->fileread = 0; | |
139 | newproc->filewrite = 0; | |
140 | newproc->syscall_info = NULL; | |
59288610 | 141 | newproc->threadparent = NULL; |
1fc22eb4 | 142 | newproc->threads = g_ptr_array_new(); |
85db4618 | 143 | newproc->perf = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 | 144 | g_ptr_array_add(ctx->process_table, newproc); |
e05a35a6 JD |
145 | |
146 | ctx->nbnewthreads++; | |
147 | ctx->nbthreads++; | |
1fc22eb4 JD |
148 | } |
149 | newproc->comm = strdup(comm); | |
150 | ||
151 | return newproc; | |
152 | } | |
153 | ||
154 | struct processtop* update_proc(struct processtop* proc, int pid, int tid, | |
155 | int ppid, char *comm) | |
156 | { | |
157 | if (proc) { | |
158 | proc->pid = pid; | |
159 | proc->tid = tid; | |
160 | proc->ppid = ppid; | |
161 | if (strcmp(proc->comm, comm) != 0) { | |
162 | free(proc->comm); | |
163 | proc->comm = strdup(comm); | |
164 | } | |
165 | } | |
166 | return proc; | |
167 | } | |
168 | ||
169 | /* | |
170 | * This function just sets the time of death of a process. | |
171 | * When we rotate the cputime we remove it from the process list. | |
172 | */ | |
173 | void death_proc(struct lttngtop *ctx, int tid, char *comm, | |
174 | unsigned long timestamp) | |
175 | { | |
176 | struct processtop *tmp; | |
177 | tmp = find_process_tid(ctx, tid, comm); | |
e05a35a6 | 178 | if (tmp && strcmp(tmp->comm, comm) == 0) { |
1fc22eb4 | 179 | tmp->death = timestamp; |
e05a35a6 JD |
180 | ctx->nbdeadthreads++; |
181 | ctx->nbthreads--; | |
182 | } | |
1fc22eb4 JD |
183 | } |
184 | ||
185 | struct processtop* get_proc(struct lttngtop *ctx, int tid, char *comm, | |
186 | unsigned long timestamp) | |
187 | { | |
188 | struct processtop *tmp; | |
189 | tmp = find_process_tid(ctx, tid, comm); | |
190 | if (tmp && strcmp(tmp->comm, comm) == 0) | |
191 | return tmp; | |
192 | return add_proc(ctx, tid, comm, timestamp); | |
193 | } | |
194 | ||
59288610 MB |
195 | struct processtop *get_proc_pid(struct lttngtop *ctx, int tid, int pid, |
196 | unsigned long timestamp) | |
197 | { | |
198 | struct processtop *tmp; | |
199 | tmp = find_process_tid(ctx, tid, NULL); | |
200 | if (tmp && tmp->pid == pid) | |
201 | return tmp; | |
202 | return add_proc(ctx, tid, "Unknown", timestamp); | |
203 | } | |
204 | ||
1fc22eb4 JD |
205 | void add_thread(struct processtop *parent, struct processtop *thread) |
206 | { | |
207 | gint i; | |
208 | struct processtop *tmp; | |
209 | ||
210 | for (i = 0; i < parent->threads->len; i++) { | |
211 | tmp = g_ptr_array_index(parent->threads, i); | |
212 | if (tmp == thread) | |
213 | return; | |
214 | } | |
215 | g_ptr_array_add(parent->threads, thread); | |
216 | } | |
217 | ||
218 | struct cputime* add_cpu(int cpu) | |
219 | { | |
220 | struct cputime *newcpu; | |
221 | ||
559c9f86 | 222 | newcpu = g_new0(struct cputime, 1); |
1fc22eb4 JD |
223 | newcpu->id = cpu; |
224 | newcpu->current_task = NULL; | |
85db4618 | 225 | newcpu->perf = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
226 | |
227 | g_ptr_array_add(lttngtop.cpu_table, newcpu); | |
228 | ||
229 | return newcpu; | |
230 | } | |
231 | struct cputime* get_cpu(int cpu) | |
232 | { | |
233 | gint i; | |
234 | struct cputime *tmp; | |
235 | ||
236 | for (i = 0; i < lttngtop.cpu_table->len; i++) { | |
237 | tmp = g_ptr_array_index(lttngtop.cpu_table, i); | |
238 | if (tmp->id == cpu) | |
239 | return tmp; | |
240 | } | |
241 | ||
242 | return add_cpu(cpu); | |
243 | } | |
244 | ||
245 | /* | |
246 | * At the end of a sampling period, we need to display the cpu time for each | |
247 | * process and to reset it to zero for the next period | |
248 | */ | |
249 | void rotate_cputime(unsigned long end) | |
250 | { | |
251 | gint i; | |
252 | struct cputime *tmp; | |
253 | unsigned long elapsed; | |
254 | ||
255 | for (i = 0; i < lttngtop.cpu_table->len; i++) { | |
256 | tmp = g_ptr_array_index(lttngtop.cpu_table, i); | |
257 | elapsed = end - tmp->task_start; | |
258 | if (tmp->current_task) { | |
259 | tmp->current_task->totalcpunsec += elapsed; | |
260 | tmp->current_task->threadstotalcpunsec += elapsed; | |
261 | if (tmp->current_task->pid != tmp->current_task->tid && | |
262 | tmp->current_task->threadparent) { | |
263 | tmp->current_task->threadparent->threadstotalcpunsec += elapsed; | |
264 | } | |
265 | } | |
266 | tmp->task_start = end; | |
267 | } | |
268 | } | |
269 | ||
270 | void reset_perf_counter(gpointer key, gpointer value, gpointer user_data) | |
271 | { | |
272 | ((struct perfcounter*) value)->count = 0; | |
273 | } | |
274 | ||
275 | void copy_perf_counter(gpointer key, gpointer value, gpointer new_table) | |
276 | { | |
277 | struct perfcounter *newperf; | |
59288610 | 278 | |
559c9f86 | 279 | newperf = g_new0(struct perfcounter, 1); |
1fc22eb4 JD |
280 | newperf->count = ((struct perfcounter *) value)->count; |
281 | newperf->visible = ((struct perfcounter *) value)->visible; | |
282 | newperf->sort = ((struct perfcounter *) value)->sort; | |
85db4618 | 283 | g_hash_table_insert((GHashTable *) new_table, strdup(key), newperf); |
1fc22eb4 JD |
284 | } |
285 | ||
286 | void rotate_perfcounter() { | |
287 | int i; | |
288 | struct processtop *tmp; | |
289 | for (i = 0; i < lttngtop.process_table->len; i++) { | |
290 | tmp = g_ptr_array_index(lttngtop.process_table, i); | |
291 | g_hash_table_foreach(tmp->perf, reset_perf_counter, NULL); | |
292 | } | |
293 | } | |
294 | ||
295 | void cleanup_processtop() | |
296 | { | |
b093de8a | 297 | gint i, j; |
1fc22eb4 | 298 | struct processtop *tmp; |
b093de8a | 299 | struct files *tmpf; /* a temporary file */ |
1fc22eb4 JD |
300 | |
301 | for (i = 0; i < lttngtop.process_table->len; i++) { | |
302 | tmp = g_ptr_array_index(lttngtop.process_table, i); | |
303 | tmp->totalcpunsec = 0; | |
304 | tmp->threadstotalcpunsec = 0; | |
b093de8a MB |
305 | tmp->fileread = 0; |
306 | tmp->filewrite = 0; | |
307 | ||
308 | for (j = 0; j < tmp->process_files_table->len; j++) { | |
309 | tmpf = g_ptr_array_index(tmp->process_files_table, j); | |
310 | if (tmpf != NULL) { | |
311 | tmpf->read = 0; | |
312 | tmpf->write = 0; | |
ceb3a221 MB |
313 | |
314 | if (tmpf->flag == __NR_close) | |
315 | g_ptr_array_index( | |
316 | tmp->process_files_table, j | |
317 | ) = NULL; | |
b093de8a MB |
318 | } |
319 | } | |
1fc22eb4 JD |
320 | } |
321 | } | |
322 | ||
e05a35a6 JD |
323 | void reset_global_counters() |
324 | { | |
325 | lttngtop.nbnewproc = 0; | |
326 | lttngtop.nbdeadproc = 0; | |
327 | lttngtop.nbnewthreads = 0; | |
328 | lttngtop.nbdeadthreads = 0; | |
329 | lttngtop.nbnewfiles = 0; | |
330 | lttngtop.nbclosedfiles = 0; | |
331 | } | |
332 | ||
333 | void copy_global_counters(struct lttngtop *dst) | |
334 | { | |
335 | dst->nbproc = lttngtop.nbproc; | |
336 | dst->nbnewproc = lttngtop.nbnewproc; | |
337 | dst->nbdeadproc = lttngtop.nbdeadproc; | |
338 | dst->nbthreads = lttngtop.nbthreads; | |
339 | dst->nbnewthreads = lttngtop.nbnewthreads; | |
340 | dst->nbdeadthreads = lttngtop.nbdeadthreads; | |
341 | dst->nbfiles = lttngtop.nbfiles; | |
342 | dst->nbnewfiles = lttngtop.nbnewfiles; | |
343 | dst->nbclosedfiles = lttngtop.nbclosedfiles; | |
344 | reset_global_counters(); | |
345 | } | |
346 | ||
1fc22eb4 JD |
347 | struct lttngtop* get_copy_lttngtop(unsigned long start, unsigned long end) |
348 | { | |
349 | gint i, j; | |
350 | unsigned long time; | |
351 | struct lttngtop *dst; | |
352 | struct processtop *tmp, *tmp2, *new; | |
353 | struct cputime *tmpcpu, *newcpu; | |
354 | struct files *tmpfile, *newfile; | |
355 | ||
559c9f86 | 356 | dst = g_new0(struct lttngtop, 1); |
1fc22eb4 JD |
357 | dst->start = start; |
358 | dst->end = end; | |
e05a35a6 | 359 | copy_global_counters(dst); |
1fc22eb4 JD |
360 | dst->process_table = g_ptr_array_new(); |
361 | dst->files_table = g_ptr_array_new(); | |
362 | dst->cpu_table = g_ptr_array_new(); | |
85db4618 | 363 | dst->perf_list = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
364 | |
365 | rotate_cputime(end); | |
366 | ||
367 | g_hash_table_foreach(lttngtop.perf_list, copy_perf_counter, dst->perf_list); | |
368 | for (i = 0; i < lttngtop.process_table->len; i++) { | |
369 | tmp = g_ptr_array_index(lttngtop.process_table, i); | |
559c9f86 | 370 | new = g_new0(struct processtop, 1); |
1fc22eb4 JD |
371 | |
372 | memcpy(new, tmp, sizeof(struct processtop)); | |
373 | new->threads = g_ptr_array_new(); | |
374 | new->comm = strdup(tmp->comm); | |
375 | new->process_files_table = g_ptr_array_new(); | |
ceb3a221 | 376 | new->files_history = tmp->files_history; |
85db4618 | 377 | new->perf = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
378 | g_hash_table_foreach(tmp->perf, copy_perf_counter, new->perf); |
379 | ||
1fc22eb4 | 380 | /* compute the stream speed */ |
85db4618 JD |
381 | if (end - start != 0) { |
382 | time = (end - start) / NSEC_PER_SEC; | |
b093de8a MB |
383 | new->fileread = new->fileread/(time); |
384 | new->filewrite = new->filewrite/(time); | |
1fc22eb4 JD |
385 | } |
386 | ||
387 | for (j = 0; j < tmp->process_files_table->len; j++) { | |
388 | tmpfile = g_ptr_array_index(tmp->process_files_table, j); | |
1fc22eb4 | 389 | |
b093de8a MB |
390 | newfile = malloc(sizeof(struct files)); |
391 | ||
392 | if (tmpfile != NULL) { | |
393 | memcpy(newfile, tmpfile, sizeof(struct files)); | |
394 | newfile->name = strdup(tmpfile->name); | |
395 | newfile->ref = new; | |
396 | g_ptr_array_add(new->process_files_table, | |
397 | newfile); | |
398 | g_ptr_array_add(dst->files_table, newfile); | |
399 | } else { | |
400 | g_ptr_array_add(new->process_files_table, NULL); | |
401 | g_ptr_array_add(dst->files_table, NULL); | |
402 | } | |
1fc22eb4 JD |
403 | /* |
404 | * if the process died during the last period, we remove all | |
405 | * files associated with if after the copy | |
406 | */ | |
407 | if (tmp->death > 0 && tmp->death < end) { | |
e05a35a6 | 408 | /* FIXME : close the files before */ |
1fc22eb4 | 409 | g_ptr_array_remove(tmp->process_files_table, tmpfile); |
559c9f86 | 410 | g_free(tmpfile); |
1fc22eb4 JD |
411 | } |
412 | } | |
413 | g_ptr_array_add(dst->process_table, new); | |
414 | ||
415 | /* | |
416 | * if the process died during the last period, we remove it from | |
417 | * the current process list after the copy | |
418 | */ | |
419 | if (tmp->death > 0 && tmp->death < end) { | |
420 | g_ptr_array_remove(lttngtop.process_table, tmp); | |
85db4618 | 421 | /* FIXME : TRUE does not mean clears the object in it */ |
1fc22eb4 JD |
422 | g_ptr_array_free(tmp->threads, TRUE); |
423 | free(tmp->comm); | |
424 | g_ptr_array_free(tmp->process_files_table, TRUE); | |
85db4618 | 425 | /* FIXME : clear elements */ |
1fc22eb4 | 426 | g_hash_table_destroy(tmp->perf); |
559c9f86 | 427 | g_free(tmp); |
1fc22eb4 JD |
428 | } |
429 | } | |
430 | rotate_perfcounter(); | |
431 | ||
432 | for (i = 0; i < lttngtop.cpu_table->len; i++) { | |
433 | tmpcpu = g_ptr_array_index(lttngtop.cpu_table, i); | |
559c9f86 | 434 | newcpu = g_new0(struct cputime, 1); |
1fc22eb4 | 435 | memcpy(newcpu, tmpcpu, sizeof(struct cputime)); |
85db4618 | 436 | newcpu->perf = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
437 | g_hash_table_foreach(tmpcpu->perf, copy_perf_counter, newcpu->perf); |
438 | /* | |
439 | * note : we don't care about the current process pointer in the copy | |
440 | * so the reference is invalid after the memcpy | |
441 | */ | |
442 | g_ptr_array_add(dst->cpu_table, newcpu); | |
443 | } | |
85db4618 | 444 | /* FIXME : better algo */ |
1fc22eb4 JD |
445 | /* create the threads index if required */ |
446 | for (i = 0; i < dst->process_table->len; i++) { | |
447 | tmp = g_ptr_array_index(dst->process_table, i); | |
448 | if (tmp->pid == tmp->tid) { | |
449 | for (j = 0; j < dst->process_table->len; j++) { | |
450 | tmp2 = g_ptr_array_index(dst->process_table, j); | |
451 | if (tmp2->pid == tmp->pid) { | |
452 | tmp2->threadparent = tmp; | |
453 | g_ptr_array_add(tmp->threads, tmp2); | |
454 | } | |
455 | } | |
456 | } | |
457 | } | |
458 | ||
459 | // update_global_stats(dst); | |
460 | cleanup_processtop(); | |
461 | ||
462 | return dst; | |
463 | } | |
464 |