Commit | Line | Data |
---|---|---|
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 JD |
137 | g_ptr_array_add(ctx->process_table, newproc); |
138 | } | |
139 | newproc->comm = strdup(comm); | |
140 | ||
141 | return newproc; | |
142 | } | |
143 | ||
144 | struct processtop* update_proc(struct processtop* proc, int pid, int tid, | |
145 | int ppid, char *comm) | |
146 | { | |
147 | if (proc) { | |
148 | proc->pid = pid; | |
149 | proc->tid = tid; | |
150 | proc->ppid = ppid; | |
151 | if (strcmp(proc->comm, comm) != 0) { | |
152 | free(proc->comm); | |
153 | proc->comm = strdup(comm); | |
154 | } | |
155 | } | |
156 | return proc; | |
157 | } | |
158 | ||
159 | /* | |
160 | * This function just sets the time of death of a process. | |
161 | * When we rotate the cputime we remove it from the process list. | |
162 | */ | |
163 | void death_proc(struct lttngtop *ctx, int tid, char *comm, | |
164 | unsigned long timestamp) | |
165 | { | |
166 | struct processtop *tmp; | |
167 | tmp = find_process_tid(ctx, tid, comm); | |
168 | if (tmp && strcmp(tmp->comm, comm) == 0) | |
169 | tmp->death = timestamp; | |
170 | } | |
171 | ||
172 | struct processtop* get_proc(struct lttngtop *ctx, int tid, char *comm, | |
173 | unsigned long timestamp) | |
174 | { | |
175 | struct processtop *tmp; | |
176 | tmp = find_process_tid(ctx, tid, comm); | |
177 | if (tmp && strcmp(tmp->comm, comm) == 0) | |
178 | return tmp; | |
179 | return add_proc(ctx, tid, comm, timestamp); | |
180 | } | |
181 | ||
182 | void add_thread(struct processtop *parent, struct processtop *thread) | |
183 | { | |
184 | gint i; | |
185 | struct processtop *tmp; | |
186 | ||
187 | for (i = 0; i < parent->threads->len; i++) { | |
188 | tmp = g_ptr_array_index(parent->threads, i); | |
189 | if (tmp == thread) | |
190 | return; | |
191 | } | |
192 | g_ptr_array_add(parent->threads, thread); | |
193 | } | |
194 | ||
195 | struct cputime* add_cpu(int cpu) | |
196 | { | |
197 | struct cputime *newcpu; | |
198 | ||
559c9f86 | 199 | newcpu = g_new0(struct cputime, 1); |
1fc22eb4 JD |
200 | newcpu->id = cpu; |
201 | newcpu->current_task = NULL; | |
85db4618 | 202 | newcpu->perf = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
203 | |
204 | g_ptr_array_add(lttngtop.cpu_table, newcpu); | |
205 | ||
206 | return newcpu; | |
207 | } | |
208 | struct cputime* get_cpu(int cpu) | |
209 | { | |
210 | gint i; | |
211 | struct cputime *tmp; | |
212 | ||
213 | for (i = 0; i < lttngtop.cpu_table->len; i++) { | |
214 | tmp = g_ptr_array_index(lttngtop.cpu_table, i); | |
215 | if (tmp->id == cpu) | |
216 | return tmp; | |
217 | } | |
218 | ||
219 | return add_cpu(cpu); | |
220 | } | |
221 | ||
222 | /* | |
223 | * At the end of a sampling period, we need to display the cpu time for each | |
224 | * process and to reset it to zero for the next period | |
225 | */ | |
226 | void rotate_cputime(unsigned long end) | |
227 | { | |
228 | gint i; | |
229 | struct cputime *tmp; | |
230 | unsigned long elapsed; | |
231 | ||
232 | for (i = 0; i < lttngtop.cpu_table->len; i++) { | |
233 | tmp = g_ptr_array_index(lttngtop.cpu_table, i); | |
234 | elapsed = end - tmp->task_start; | |
235 | if (tmp->current_task) { | |
236 | tmp->current_task->totalcpunsec += elapsed; | |
237 | tmp->current_task->threadstotalcpunsec += elapsed; | |
238 | if (tmp->current_task->pid != tmp->current_task->tid && | |
239 | tmp->current_task->threadparent) { | |
240 | tmp->current_task->threadparent->threadstotalcpunsec += elapsed; | |
241 | } | |
242 | } | |
243 | tmp->task_start = end; | |
244 | } | |
245 | } | |
246 | ||
247 | void reset_perf_counter(gpointer key, gpointer value, gpointer user_data) | |
248 | { | |
249 | ((struct perfcounter*) value)->count = 0; | |
250 | } | |
251 | ||
252 | void copy_perf_counter(gpointer key, gpointer value, gpointer new_table) | |
253 | { | |
254 | struct perfcounter *newperf; | |
255 | ||
559c9f86 | 256 | newperf = g_new0(struct perfcounter, 1); |
1fc22eb4 JD |
257 | newperf->count = ((struct perfcounter *) value)->count; |
258 | newperf->visible = ((struct perfcounter *) value)->visible; | |
259 | newperf->sort = ((struct perfcounter *) value)->sort; | |
85db4618 | 260 | g_hash_table_insert((GHashTable *) new_table, strdup(key), newperf); |
1fc22eb4 JD |
261 | } |
262 | ||
263 | void rotate_perfcounter() { | |
264 | int i; | |
265 | struct processtop *tmp; | |
266 | for (i = 0; i < lttngtop.process_table->len; i++) { | |
267 | tmp = g_ptr_array_index(lttngtop.process_table, i); | |
268 | g_hash_table_foreach(tmp->perf, reset_perf_counter, NULL); | |
269 | } | |
270 | } | |
271 | ||
272 | void cleanup_processtop() | |
273 | { | |
b093de8a | 274 | gint i, j; |
1fc22eb4 | 275 | struct processtop *tmp; |
b093de8a | 276 | struct files *tmpf; /* a temporary file */ |
1fc22eb4 JD |
277 | |
278 | for (i = 0; i < lttngtop.process_table->len; i++) { | |
279 | tmp = g_ptr_array_index(lttngtop.process_table, i); | |
280 | tmp->totalcpunsec = 0; | |
281 | tmp->threadstotalcpunsec = 0; | |
b093de8a MB |
282 | tmp->fileread = 0; |
283 | tmp->filewrite = 0; | |
284 | ||
285 | for (j = 0; j < tmp->process_files_table->len; j++) { | |
286 | tmpf = g_ptr_array_index(tmp->process_files_table, j); | |
287 | if (tmpf != NULL) { | |
288 | tmpf->read = 0; | |
289 | tmpf->write = 0; | |
ceb3a221 MB |
290 | |
291 | if (tmpf->flag == __NR_close) | |
292 | g_ptr_array_index( | |
293 | tmp->process_files_table, j | |
294 | ) = NULL; | |
b093de8a MB |
295 | } |
296 | } | |
1fc22eb4 JD |
297 | } |
298 | } | |
299 | ||
300 | struct lttngtop* get_copy_lttngtop(unsigned long start, unsigned long end) | |
301 | { | |
302 | gint i, j; | |
303 | unsigned long time; | |
304 | struct lttngtop *dst; | |
305 | struct processtop *tmp, *tmp2, *new; | |
306 | struct cputime *tmpcpu, *newcpu; | |
307 | struct files *tmpfile, *newfile; | |
308 | ||
559c9f86 | 309 | dst = g_new0(struct lttngtop, 1); |
1fc22eb4 JD |
310 | dst->start = start; |
311 | dst->end = end; | |
312 | dst->process_table = g_ptr_array_new(); | |
313 | dst->files_table = g_ptr_array_new(); | |
314 | dst->cpu_table = g_ptr_array_new(); | |
85db4618 | 315 | dst->perf_list = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
316 | |
317 | rotate_cputime(end); | |
318 | ||
319 | g_hash_table_foreach(lttngtop.perf_list, copy_perf_counter, dst->perf_list); | |
320 | for (i = 0; i < lttngtop.process_table->len; i++) { | |
321 | tmp = g_ptr_array_index(lttngtop.process_table, i); | |
559c9f86 | 322 | new = g_new0(struct processtop, 1); |
1fc22eb4 JD |
323 | |
324 | memcpy(new, tmp, sizeof(struct processtop)); | |
325 | new->threads = g_ptr_array_new(); | |
326 | new->comm = strdup(tmp->comm); | |
327 | new->process_files_table = g_ptr_array_new(); | |
ceb3a221 | 328 | new->files_history = tmp->files_history; |
85db4618 | 329 | new->perf = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
330 | g_hash_table_foreach(tmp->perf, copy_perf_counter, new->perf); |
331 | ||
1fc22eb4 | 332 | /* compute the stream speed */ |
85db4618 JD |
333 | if (end - start != 0) { |
334 | time = (end - start) / NSEC_PER_SEC; | |
b093de8a MB |
335 | new->fileread = new->fileread/(time); |
336 | new->filewrite = new->filewrite/(time); | |
1fc22eb4 JD |
337 | } |
338 | ||
339 | for (j = 0; j < tmp->process_files_table->len; j++) { | |
340 | tmpfile = g_ptr_array_index(tmp->process_files_table, j); | |
1fc22eb4 | 341 | |
b093de8a MB |
342 | newfile = malloc(sizeof(struct files)); |
343 | ||
344 | if (tmpfile != NULL) { | |
345 | memcpy(newfile, tmpfile, sizeof(struct files)); | |
346 | newfile->name = strdup(tmpfile->name); | |
347 | newfile->ref = new; | |
348 | g_ptr_array_add(new->process_files_table, | |
349 | newfile); | |
350 | g_ptr_array_add(dst->files_table, newfile); | |
351 | } else { | |
352 | g_ptr_array_add(new->process_files_table, NULL); | |
353 | g_ptr_array_add(dst->files_table, NULL); | |
354 | } | |
1fc22eb4 JD |
355 | /* |
356 | * if the process died during the last period, we remove all | |
357 | * files associated with if after the copy | |
358 | */ | |
359 | if (tmp->death > 0 && tmp->death < end) { | |
360 | g_ptr_array_remove(tmp->process_files_table, tmpfile); | |
559c9f86 | 361 | g_free(tmpfile); |
1fc22eb4 JD |
362 | } |
363 | } | |
364 | g_ptr_array_add(dst->process_table, new); | |
365 | ||
366 | /* | |
367 | * if the process died during the last period, we remove it from | |
368 | * the current process list after the copy | |
369 | */ | |
370 | if (tmp->death > 0 && tmp->death < end) { | |
371 | g_ptr_array_remove(lttngtop.process_table, tmp); | |
85db4618 | 372 | /* FIXME : TRUE does not mean clears the object in it */ |
1fc22eb4 JD |
373 | g_ptr_array_free(tmp->threads, TRUE); |
374 | free(tmp->comm); | |
375 | g_ptr_array_free(tmp->process_files_table, TRUE); | |
85db4618 | 376 | /* FIXME : clear elements */ |
1fc22eb4 | 377 | g_hash_table_destroy(tmp->perf); |
559c9f86 | 378 | g_free(tmp); |
1fc22eb4 JD |
379 | } |
380 | } | |
381 | rotate_perfcounter(); | |
382 | ||
383 | for (i = 0; i < lttngtop.cpu_table->len; i++) { | |
384 | tmpcpu = g_ptr_array_index(lttngtop.cpu_table, i); | |
559c9f86 | 385 | newcpu = g_new0(struct cputime, 1); |
1fc22eb4 | 386 | memcpy(newcpu, tmpcpu, sizeof(struct cputime)); |
85db4618 | 387 | newcpu->perf = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
388 | g_hash_table_foreach(tmpcpu->perf, copy_perf_counter, newcpu->perf); |
389 | /* | |
390 | * note : we don't care about the current process pointer in the copy | |
391 | * so the reference is invalid after the memcpy | |
392 | */ | |
393 | g_ptr_array_add(dst->cpu_table, newcpu); | |
394 | } | |
85db4618 | 395 | /* FIXME : better algo */ |
1fc22eb4 JD |
396 | /* create the threads index if required */ |
397 | for (i = 0; i < dst->process_table->len; i++) { | |
398 | tmp = g_ptr_array_index(dst->process_table, i); | |
399 | if (tmp->pid == tmp->tid) { | |
400 | for (j = 0; j < dst->process_table->len; j++) { | |
401 | tmp2 = g_ptr_array_index(dst->process_table, j); | |
402 | if (tmp2->pid == tmp->pid) { | |
403 | tmp2->threadparent = tmp; | |
404 | g_ptr_array_add(tmp->threads, tmp2); | |
405 | } | |
406 | } | |
407 | } | |
408 | } | |
409 | ||
410 | // update_global_stats(dst); | |
411 | cleanup_processtop(); | |
412 | ||
413 | return dst; | |
414 | } | |
415 |