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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 JD |
19 | #include <stdlib.h> |
20 | #include <string.h> | |
21 | #include "common.h" | |
22 | ||
d67167cd JD |
23 | uint64_t get_cpu_id(struct bt_ctf_event *event) |
24 | { | |
25 | struct definition *scope; | |
26 | uint64_t cpu_id; | |
27 | ||
28 | scope = bt_ctf_get_top_level_scope(event, BT_STREAM_PACKET_CONTEXT); | |
29 | cpu_id = bt_ctf_get_uint64(bt_ctf_get_field(event, scope, "cpu_id")); | |
30 | if (bt_ctf_field_get_error()) { | |
31 | fprintf(stderr, "[error] get cpu_id\n"); | |
32 | return -1ULL; | |
33 | } | |
34 | ||
35 | return cpu_id; | |
36 | } | |
37 | ||
1dec520a JD |
38 | uint64_t get_context_tid(struct bt_ctf_event *event) |
39 | { | |
40 | struct definition *scope; | |
41 | uint64_t tid; | |
42 | ||
43 | scope = bt_ctf_get_top_level_scope(event, BT_STREAM_EVENT_CONTEXT); | |
44 | tid = bt_ctf_get_int64(bt_ctf_get_field(event, | |
45 | scope, "_tid")); | |
46 | if (bt_ctf_field_get_error()) { | |
47 | fprintf(stderr, "Missing tid context info\n"); | |
48 | return -1ULL; | |
49 | } | |
50 | ||
51 | return tid; | |
52 | } | |
53 | ||
54 | uint64_t get_context_pid(struct bt_ctf_event *event) | |
55 | { | |
56 | struct definition *scope; | |
57 | uint64_t pid; | |
58 | ||
59 | scope = bt_ctf_get_top_level_scope(event, BT_STREAM_EVENT_CONTEXT); | |
60 | pid = bt_ctf_get_int64(bt_ctf_get_field(event, | |
61 | scope, "_pid")); | |
62 | if (bt_ctf_field_get_error()) { | |
63 | fprintf(stderr, "Missing pid context info\n"); | |
64 | return -1ULL; | |
65 | } | |
66 | ||
67 | return pid; | |
68 | } | |
69 | ||
70 | uint64_t get_context_ppid(struct bt_ctf_event *event) | |
71 | { | |
72 | struct definition *scope; | |
73 | uint64_t ppid; | |
74 | ||
75 | scope = bt_ctf_get_top_level_scope(event, BT_STREAM_EVENT_CONTEXT); | |
76 | ppid = bt_ctf_get_int64(bt_ctf_get_field(event, | |
77 | scope, "_ppid")); | |
78 | if (bt_ctf_field_get_error()) { | |
79 | fprintf(stderr, "Missing ppid context info\n"); | |
80 | return -1ULL; | |
81 | } | |
82 | ||
83 | return ppid; | |
84 | } | |
85 | ||
86 | char *get_context_comm(struct bt_ctf_event *event) | |
87 | { | |
88 | struct definition *scope; | |
89 | char *comm; | |
90 | ||
91 | scope = bt_ctf_get_top_level_scope(event, BT_STREAM_EVENT_CONTEXT); | |
92 | comm = bt_ctf_get_char_array(bt_ctf_get_field(event, | |
93 | scope, "_procname")); | |
94 | if (bt_ctf_field_get_error()) { | |
95 | fprintf(stderr, "Missing comm context info\n"); | |
96 | return NULL; | |
97 | } | |
98 | ||
99 | return comm; | |
100 | } | |
101 | ||
1fc22eb4 JD |
102 | struct processtop *find_process_tid(struct lttngtop *ctx, int tid, char *comm) |
103 | { | |
104 | gint i; | |
105 | struct processtop *tmp; | |
106 | ||
107 | for (i = 0; i < ctx->process_table->len; i++) { | |
108 | tmp = g_ptr_array_index(ctx->process_table, i); | |
109 | if (tmp && tmp->tid == tid) | |
110 | return tmp; | |
111 | } | |
112 | return NULL; | |
113 | } | |
114 | ||
115 | struct processtop* add_proc(struct lttngtop *ctx, int tid, char *comm, | |
116 | unsigned long timestamp) | |
117 | { | |
118 | struct processtop *newproc; | |
119 | ||
120 | /* if the PID already exists, we just rename the process */ | |
121 | /* FIXME : need to integrate with clone/fork/exit to be accurate */ | |
122 | newproc = find_process_tid(ctx, tid, comm); | |
123 | if (!newproc) { | |
559c9f86 | 124 | newproc = g_new0(struct processtop, 1); |
1fc22eb4 JD |
125 | newproc->tid = tid; |
126 | newproc->birth = timestamp; | |
127 | newproc->process_files_table = g_ptr_array_new(); | |
b093de8a MB |
128 | newproc->files_history = g_new0(struct file_history, 1); |
129 | newproc->files_history->next = NULL; | |
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; | |
290 | } | |
291 | } | |
1fc22eb4 JD |
292 | } |
293 | } | |
294 | ||
295 | struct lttngtop* get_copy_lttngtop(unsigned long start, unsigned long end) | |
296 | { | |
297 | gint i, j; | |
298 | unsigned long time; | |
299 | struct lttngtop *dst; | |
300 | struct processtop *tmp, *tmp2, *new; | |
301 | struct cputime *tmpcpu, *newcpu; | |
302 | struct files *tmpfile, *newfile; | |
303 | ||
559c9f86 | 304 | dst = g_new0(struct lttngtop, 1); |
1fc22eb4 JD |
305 | dst->start = start; |
306 | dst->end = end; | |
307 | dst->process_table = g_ptr_array_new(); | |
308 | dst->files_table = g_ptr_array_new(); | |
309 | dst->cpu_table = g_ptr_array_new(); | |
85db4618 | 310 | dst->perf_list = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
311 | |
312 | rotate_cputime(end); | |
313 | ||
314 | g_hash_table_foreach(lttngtop.perf_list, copy_perf_counter, dst->perf_list); | |
315 | for (i = 0; i < lttngtop.process_table->len; i++) { | |
316 | tmp = g_ptr_array_index(lttngtop.process_table, i); | |
559c9f86 | 317 | new = g_new0(struct processtop, 1); |
1fc22eb4 JD |
318 | |
319 | memcpy(new, tmp, sizeof(struct processtop)); | |
320 | new->threads = g_ptr_array_new(); | |
321 | new->comm = strdup(tmp->comm); | |
322 | new->process_files_table = g_ptr_array_new(); | |
85db4618 | 323 | new->perf = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
324 | g_hash_table_foreach(tmp->perf, copy_perf_counter, new->perf); |
325 | ||
1fc22eb4 | 326 | /* compute the stream speed */ |
85db4618 JD |
327 | if (end - start != 0) { |
328 | time = (end - start) / NSEC_PER_SEC; | |
b093de8a MB |
329 | new->fileread = new->fileread/(time); |
330 | new->filewrite = new->filewrite/(time); | |
1fc22eb4 JD |
331 | } |
332 | ||
333 | for (j = 0; j < tmp->process_files_table->len; j++) { | |
334 | tmpfile = g_ptr_array_index(tmp->process_files_table, j); | |
1fc22eb4 | 335 | |
b093de8a MB |
336 | newfile = malloc(sizeof(struct files)); |
337 | ||
338 | if (tmpfile != NULL) { | |
339 | memcpy(newfile, tmpfile, sizeof(struct files)); | |
340 | newfile->name = strdup(tmpfile->name); | |
341 | newfile->ref = new; | |
342 | g_ptr_array_add(new->process_files_table, | |
343 | newfile); | |
344 | g_ptr_array_add(dst->files_table, newfile); | |
345 | } else { | |
346 | g_ptr_array_add(new->process_files_table, NULL); | |
347 | g_ptr_array_add(dst->files_table, NULL); | |
348 | } | |
1fc22eb4 JD |
349 | /* |
350 | * if the process died during the last period, we remove all | |
351 | * files associated with if after the copy | |
352 | */ | |
353 | if (tmp->death > 0 && tmp->death < end) { | |
354 | g_ptr_array_remove(tmp->process_files_table, tmpfile); | |
559c9f86 | 355 | g_free(tmpfile); |
1fc22eb4 JD |
356 | } |
357 | } | |
358 | g_ptr_array_add(dst->process_table, new); | |
359 | ||
360 | /* | |
361 | * if the process died during the last period, we remove it from | |
362 | * the current process list after the copy | |
363 | */ | |
364 | if (tmp->death > 0 && tmp->death < end) { | |
365 | g_ptr_array_remove(lttngtop.process_table, tmp); | |
85db4618 | 366 | /* FIXME : TRUE does not mean clears the object in it */ |
1fc22eb4 JD |
367 | g_ptr_array_free(tmp->threads, TRUE); |
368 | free(tmp->comm); | |
369 | g_ptr_array_free(tmp->process_files_table, TRUE); | |
85db4618 | 370 | /* FIXME : clear elements */ |
1fc22eb4 | 371 | g_hash_table_destroy(tmp->perf); |
559c9f86 | 372 | g_free(tmp); |
1fc22eb4 JD |
373 | } |
374 | } | |
375 | rotate_perfcounter(); | |
376 | ||
377 | for (i = 0; i < lttngtop.cpu_table->len; i++) { | |
378 | tmpcpu = g_ptr_array_index(lttngtop.cpu_table, i); | |
559c9f86 | 379 | newcpu = g_new0(struct cputime, 1); |
1fc22eb4 | 380 | memcpy(newcpu, tmpcpu, sizeof(struct cputime)); |
85db4618 | 381 | newcpu->perf = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
382 | g_hash_table_foreach(tmpcpu->perf, copy_perf_counter, newcpu->perf); |
383 | /* | |
384 | * note : we don't care about the current process pointer in the copy | |
385 | * so the reference is invalid after the memcpy | |
386 | */ | |
387 | g_ptr_array_add(dst->cpu_table, newcpu); | |
388 | } | |
85db4618 | 389 | /* FIXME : better algo */ |
1fc22eb4 JD |
390 | /* create the threads index if required */ |
391 | for (i = 0; i < dst->process_table->len; i++) { | |
392 | tmp = g_ptr_array_index(dst->process_table, i); | |
393 | if (tmp->pid == tmp->tid) { | |
394 | for (j = 0; j < dst->process_table->len; j++) { | |
395 | tmp2 = g_ptr_array_index(dst->process_table, j); | |
396 | if (tmp2->pid == tmp->pid) { | |
397 | tmp2->threadparent = tmp; | |
398 | g_ptr_array_add(tmp->threads, tmp2); | |
399 | } | |
400 | } | |
401 | } | |
402 | } | |
403 | ||
404 | // update_global_stats(dst); | |
405 | cleanup_processtop(); | |
406 | ||
407 | return dst; | |
408 | } | |
409 |