5 * Copyright (C) 2010 BMW Car IT GmbH. All rights reserved.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
27 #include <sys/types.h>
41 #include <glib/gstdio.h>
43 #ifdef TEMP_FAILURE_RETRY
44 #define TFR TEMP_FAILURE_RETRY
49 #define MAGIC 0xFA00B916
51 struct connman_stats_data {
52 unsigned int rx_packets;
53 unsigned int tx_packets;
54 unsigned int rx_bytes;
55 unsigned int tx_bytes;
56 unsigned int rx_errors;
57 unsigned int tx_errors;
58 unsigned int rx_dropped;
59 unsigned int tx_dropped;
63 struct stats_file_header {
74 struct connman_stats_data data;
87 struct stats_record *first;
88 struct stats_record *last;
89 struct stats_record *home_first;
90 struct stats_record *roaming_first;
94 struct stats_file *file;
95 struct stats_record *begin;
96 struct stats_record *end;
97 struct stats_record *it;
100 static gint option_create = 0;
101 static gint option_interval = 3;
102 static gboolean option_dump = FALSE;
103 static gboolean option_summary = FALSE;
104 static char *option_info_file_name = NULL;
105 static time_t option_start_ts = -1;
106 static char *option_last_file_name = NULL;
108 static gboolean parse_start_ts(const char *key, const char *value,
109 gpointer user_data, GError **error)
113 if (g_time_val_from_iso8601(value, &time_val) == FALSE)
116 option_start_ts = time_val.tv_sec;
121 static GOptionEntry options[] = {
122 { "create", 'c', 0, G_OPTION_ARG_INT, &option_create,
123 "Create a .data file with NR faked entries", "NR" },
124 { "interval", 'i', 0, G_OPTION_ARG_INT, &option_interval,
125 "Interval in seconds (used with create)", "INTERVAL" },
126 { "dump", 'd', 0, G_OPTION_ARG_NONE, &option_dump,
127 "Dump contents of .data file" },
128 { "summary", 's', 0, G_OPTION_ARG_NONE, &option_summary,
129 "Summary of .data file" },
130 { "info", 'f', 0, G_OPTION_ARG_FILENAME, &option_info_file_name,
132 { "startts", 't', 0, G_OPTION_ARG_CALLBACK, parse_start_ts,
133 "Set start time for creating .data file "
134 "(example 2010-11-05T23:00:12Z)", "TS"},
135 { "last", 'l', 0, G_OPTION_ARG_FILENAME, &option_last_file_name,
136 "Start values from last .data file" },
140 static struct stats_file_header *get_hdr(struct stats_file *file)
142 return (struct stats_file_header *)file->addr;
145 static struct stats_record *get_begin(struct stats_file *file)
147 unsigned int off = get_hdr(file)->begin;
149 return (struct stats_record *)(file->addr + off);
152 static struct stats_record *get_end(struct stats_file *file)
154 unsigned int off = get_hdr(file)->end;
156 return (struct stats_record *)(file->addr + off);
159 static struct stats_record *get_home(struct stats_file *file)
161 struct stats_file_header *hdr;
165 if (hdr->home == UINT_MAX)
168 return (struct stats_record *)(file->addr + hdr->home);
171 static struct stats_record *get_roaming(struct stats_file *file)
173 struct stats_file_header *hdr;
177 if (hdr->roaming == UINT_MAX)
180 return (struct stats_record *)(file->addr + hdr->roaming);
183 static void set_end(struct stats_file *file, struct stats_record *end)
185 struct stats_file_header *hdr;
188 hdr->end = (char *)end - file->addr;
191 static int get_index(struct stats_file *file, struct stats_record *rec)
193 return rec - file->first;
196 static struct stats_record *get_next(struct stats_file *file,
197 struct stats_record *cur)
201 if (cur > file->last)
207 static struct stats_record *get_iterator_begin(struct stats_file *file)
209 return get_next(file, get_begin(file));
212 static struct stats_record *get_iterator_end(struct stats_file *file)
214 return get_next(file, get_end(file));
217 static void stats_print_record(struct stats_record *rec)
221 strftime(buffer, 30, "%d-%m-%Y %T", localtime(&rec->ts));
222 printf("%p %lld %s %01d %d %d %d %d %d %d %d %d %d\n",
223 rec, (long long int)rec->ts, buffer,
225 rec->data.rx_packets,
226 rec->data.tx_packets,
231 rec->data.rx_dropped,
232 rec->data.tx_dropped,
236 static void stats_hdr_info(struct stats_file *file)
238 struct stats_file_header *hdr;
239 struct stats_record *begin, *end, *home, *roaming;
240 unsigned int home_idx, roaming_idx;
243 begin = get_begin(file);
246 home = get_home(file);
250 home_idx = get_index(file, home);
252 roaming = get_roaming(file);
254 roaming_idx = UINT_MAX;
256 roaming_idx = get_index(file, roaming);
258 printf("Data Structure Sizes\n");
259 printf(" sizeof header %zd/0x%02zx\n",
260 sizeof(struct stats_file_header),
261 sizeof(struct stats_file_header));
262 printf(" sizeof entry %zd/0%02zx\n\n",
263 sizeof(struct stats_record),
264 sizeof(struct stats_record));
267 printf(" addr %p\n", file->addr);
268 printf(" len %zd\n", file->len);
270 printf(" max nr entries %d\n", file->max_nr);
271 printf(" nr entries %d\n\n", file->nr);
274 printf(" magic 0x%08x\n", hdr->magic);
275 printf(" begin [%d] 0x%08x\n",
276 get_index(file, begin), hdr->begin);
277 printf(" end [%d] 0x%08x\n",
278 get_index(file, end), hdr->end);
279 printf(" home [%d] 0x%08x\n",
280 home_idx, hdr->home);
281 printf(" roaming [%d] 0x%08x\n\n",
282 roaming_idx, hdr->roaming);
285 printf("Pointers\n");
286 printf(" hdr %p\n", hdr);
287 printf(" begin %p\n", begin);
288 printf(" end %p\n", end);
289 printf(" home %p\n", home);
290 printf(" romaing %p\n", roaming);
291 printf(" first %p\n", file->first);
292 printf(" last %p\n\n", file->last);
295 static void stats_print_entries(struct stats_file *file)
297 struct stats_record *it;
300 printf("[ idx] ptr ts ts rx_packets tx_packets rx_bytes "
301 "tx_bytes rx_errors tx_errors rx_dropped tx_dropped time\n\n");
303 for (i = 0, it = file->first; it <= file->last; it++, i++) {
304 printf("[%04d] ", i);
305 stats_print_record(it);
309 static void stats_print_rec_diff(struct stats_record *begin,
310 struct stats_record *end)
312 printf("\trx_packets: %d\n",
313 end->data.rx_packets - begin->data.rx_packets);
314 printf("\ttx_packets: %d\n",
315 end->data.tx_packets - begin->data.tx_packets);
316 printf("\trx_bytes: %d\n",
317 end->data.rx_bytes - begin->data.rx_bytes);
318 printf("\ttx_bytes: %d\n",
319 end->data.tx_bytes - begin->data.tx_bytes);
320 printf("\trx_errors: %d\n",
321 end->data.rx_errors - begin->data.rx_errors);
322 printf("\ttx_errors: %d\n",
323 end->data.tx_errors - begin->data.tx_errors);
324 printf("\trx_dropped: %d\n",
325 end->data.rx_dropped - begin->data.rx_dropped);
326 printf("\ttx_dropped: %d\n",
327 end->data.tx_dropped - begin->data.tx_dropped);
328 printf("\ttime: %d\n",
329 end->data.time - begin->data.time);
332 static void stats_print_diff(struct stats_file *file)
334 struct stats_record *begin, *end;
336 begin = get_begin(file);
337 begin = get_next(file, begin);
340 printf("\n(begin + 1)\n");
341 printf("\t[%04d] ", get_index(file, begin));
342 stats_print_record(begin);
344 printf("\t[%04d] ", get_index(file, end));
345 stats_print_record(end);
347 if (file->home_first != NULL && get_home(file) != NULL) {
349 stats_print_rec_diff(file->home_first, get_home(file));
352 if (file->roaming_first != NULL && get_roaming(file) != NULL) {
353 printf("\roaming\n");
354 stats_print_rec_diff(file->roaming_first, get_roaming(file));
358 static void update_max_nr_entries(struct stats_file *file)
360 file->max_nr = (file->len - sizeof(struct stats_file_header)) /
361 sizeof(struct stats_record);
364 static void update_nr_entries(struct stats_file *file)
366 struct stats_record *begin, *end;
369 begin = get_begin(file);
372 nr = get_index(file, end) - get_index(file, begin);
380 static void update_first(struct stats_file *file)
382 file->first = (struct stats_record *)(file->addr +
383 sizeof(struct stats_file_header));
386 static void update_last(struct stats_file *file)
388 struct stats_record *last;
391 last += file->max_nr - 1;
396 static int stats_file_update_cache(struct stats_file *file)
398 struct stats_record *it, *end;
400 update_max_nr_entries(file);
401 update_nr_entries(file);
404 file->home_first = NULL;
405 file->roaming_first = NULL;
407 end = get_iterator_end(file);
408 for (it = get_iterator_begin(file);
410 it = get_next(file, it)) {
412 if (file->home_first == NULL && it->roaming == 0)
413 file->home_first = it;
415 if (file->roaming_first == NULL && it->roaming == 1)
416 file->roaming_first = it;
418 if (file->home_first != NULL && file->roaming_first != NULL)
425 static int stats_file_remap(struct stats_file *file, size_t size)
427 size_t page_size, new_size;
431 page_size = sysconf(_SC_PAGESIZE);
432 new_size = (size + page_size - 1) & ~(page_size - 1);
434 err = ftruncate(file->fd, new_size);
436 fprintf(stderr, "ftrunctate error %s for %s",
437 strerror(errno), file->name);
441 if (file->addr == NULL) {
442 addr = mmap(NULL, new_size, PROT_READ | PROT_WRITE,
443 MAP_SHARED, file->fd, 0);
445 addr = mremap(file->addr, file->len, new_size, MREMAP_MAYMOVE);
448 if (addr == MAP_FAILED) {
449 fprintf(stderr, "mmap error %s for %s\n",
450 strerror(errno), file->name);
455 file->len = new_size;
456 file->max_len = new_size;
461 static int stats_open(struct stats_file *file, const char *name)
463 struct stats_file_header *hdr;
468 bzero(file, sizeof(struct stats_file));
471 file->name = g_strdup(name);
473 file->fd = TFR(open(file->name,
474 O_RDWR | O_CREAT | O_CLOEXEC, 0644));
475 if (file->fd == -1) {
476 fprintf(stderr, "open error %s for %s\n",
477 strerror(errno), file->name);
481 err = fstat(file->fd, &tm);
483 fprintf(stderr, "fstat error %s for %s\n",
484 strerror(errno), file->name);
488 size = (size_t)tm.st_size;
490 file->name = g_strdup("stats.XXXXXX.tmp");
491 file->fd = g_mkstemp_full(file->name, O_RDWR | O_CREAT, 0644);
492 if (file->fd == -1) {
493 fprintf(stderr, "creating tmp failed\n");
499 size = sysconf(_SC_PAGESIZE);
501 err = stats_file_remap(file, size);
503 fprintf(stderr, "remap failed\n");
507 /* Initialize new file */
509 if (hdr->magic != MAGIC ||
510 hdr->begin < sizeof(struct stats_file_header) ||
511 hdr->end < sizeof(struct stats_file_header) ||
512 hdr->home < sizeof(struct stats_file_header) ||
513 hdr->roaming < sizeof(struct stats_file_header) ||
514 hdr->begin > file->len ||
515 hdr->end > file->len) {
517 hdr->begin = sizeof(struct stats_file_header);
518 hdr->end = sizeof(struct stats_file_header);
519 hdr->home = UINT_MAX;
520 hdr->roaming = UINT_MAX;
523 stats_file_update_cache(file);
528 static void stats_close(struct stats_file *file)
530 munmap(file->addr, file->len);
535 static int stats_create(struct stats_file *file, unsigned int nr,
536 unsigned int interval, time_t start_ts,
537 struct stats_record *start)
541 struct stats_record *cur, *next;
542 struct stats_file_header *hdr;
544 unsigned int step_ts;
545 unsigned int roaming = FALSE;
550 hdr->begin = sizeof(struct stats_file_header);
551 hdr->end = sizeof(struct stats_file_header);
552 hdr->home = UINT_MAX;
553 hdr->roaming = UINT_MAX;
555 stats_file_update_cache(file);
558 struct stats_record *rec;
561 memcpy(rec, start, sizeof(struct stats_record));
563 get_end(file)->ts = start_ts;
566 for (i = 0; i < nr; i++) {
567 if (file->last == get_end(file)) {
568 err = stats_file_remap(file, file->len +
569 sysconf(_SC_PAGESIZE));
573 stats_file_update_cache(file);
576 next = get_next(file, cur);
578 step_ts = (rand() % interval);
582 next->ts = cur->ts + step_ts;
583 next->roaming = roaming;
584 next->data.time = cur->data.time + step_ts;
586 next->data.rx_packets = cur->data.rx_packets;
587 next->data.rx_bytes = cur->data.rx_bytes;
589 if (rand() % 3 == 0) {
591 next->data.rx_packets += pkt;
592 next->data.rx_bytes += pkt * (rand() % 1500);
595 next->data.tx_packets = cur->data.tx_packets;
596 next->data.tx_bytes = cur->data.tx_bytes;
598 if (rand() % 3 == 0) {
600 next->data.tx_packets += pkt;
601 next->data.tx_bytes += pkt * (rand() % 1500);
606 if ((rand() % 50) == 0)
607 roaming = roaming == TRUE? FALSE : TRUE;
614 static struct stats_record *get_next_record(struct stats_iter *iter)
616 if (iter->it != iter->end) {
617 struct stats_record *tmp;
620 iter->it = get_next(iter->file, iter->it);
628 static int append_record(struct stats_file *file,
629 struct stats_record *rec)
631 struct stats_record *cur, *next;
634 if (file->last == get_end(file)) {
635 err = stats_file_remap(file, file->len +
636 sysconf(_SC_PAGESIZE));
640 stats_file_update_cache(file);
644 next = get_next(file, cur);
646 memcpy(next, rec, sizeof(struct stats_record));
653 static struct stats_record *process_file(struct stats_iter *iter,
654 struct stats_file *temp_file,
655 struct stats_record *cur,
656 GDate *date_change_step_size,
657 int account_period_offset)
659 struct stats_record *home, *roaming;
660 struct stats_record *next;
666 cur = get_next_record(iter);
667 next = get_next_record(iter);
669 while (next != NULL) {
676 if (cur->roaming == TRUE)
681 g_date_set_time_t(&date_cur, cur->ts);
682 g_date_set_time_t(&date_next, next->ts);
684 if (g_date_compare(&date_cur, date_change_step_size) < 0) {
685 /* month period size */
686 GDateDay day_cur, day_next;
687 GDateMonth month_cur, month_next;
689 month_cur = g_date_get_month(&date_cur);
690 month_next = g_date_get_month(&date_next);
692 day_cur = g_date_get_day(&date_cur);
693 day_next = g_date_get_day(&date_next);
695 if (day_cur == day_next && month_cur != month_next)
697 else if (day_cur < account_period_offset && day_next >= account_period_offset)
700 /* day period size */
701 if (g_date_days_between(&date_cur, &date_next) > 0)
705 if (append == TRUE) {
707 append_record(temp_file, home);
711 if (roaming != NULL) {
712 append_record(temp_file, roaming);
718 next = get_next_record(iter);
724 static int summarize(struct stats_file *data_file,
725 struct stats_file *history_file,
726 struct stats_file *temp_file,
727 int account_period_offset)
729 struct stats_iter data_iter;
730 struct stats_iter history_iter;
731 struct stats_record *cur, *next;
733 GDate today, date_change_step_size;
736 * First calculate the date when switch from monthly
737 * accounting period size to daily size
739 g_date_set_time_t(&today, time(NULL));
741 date_change_step_size = today;
742 if (g_date_get_day(&today) - account_period_offset >= 0)
743 g_date_subtract_months(&date_change_step_size, 2);
745 g_date_subtract_months(&date_change_step_size, 3);
747 g_date_set_day(&date_change_step_size, account_period_offset);
750 /* Now process history file */
753 if (history_file != NULL) {
754 history_iter.file = history_file;
755 history_iter.begin = get_iterator_begin(history_iter.file);
756 history_iter.end = get_iterator_end(history_iter.file);
757 history_iter.it = history_iter.begin;
759 cur = process_file(&history_iter, temp_file, NULL,
760 &date_change_step_size, account_period_offset);
763 data_iter.file = data_file;
764 data_iter.begin = get_iterator_begin(data_iter.file);
765 data_iter.end = get_iterator_end(data_iter.file);
766 data_iter.it = data_iter.begin;
769 * Ensure date_file records are newer than the history_file
773 next = get_next_record(&data_iter);
774 while(next != NULL && cur->ts > next->ts)
775 next = get_next_record(&data_iter);
778 /* And finally process the new data records */
779 cur = process_file(&data_iter, temp_file, cur,
780 &date_change_step_size, account_period_offset);
783 append_record(temp_file, cur);
788 static void swap_and_close_files(struct stats_file *history_file,
789 struct stats_file *temp_file)
791 munmap(history_file->addr, history_file->len);
792 munmap(temp_file->addr, temp_file->len);
794 TFR(close(temp_file->fd));
796 unlink(history_file->name);
798 if (link(temp_file->name, history_file->name) < 0)
801 unlink(temp_file->name);
802 TFR(close(history_file->fd));
805 static void history_file_update(struct stats_file *data_file,
806 const char *history_file_name)
808 struct stats_file _history_file;
809 struct stats_file tempory_file;
811 struct stats_file *history_file = NULL;
813 if (stats_open(&_history_file, history_file_name) == 0)
814 history_file = &_history_file;
816 if (stats_open(&tempory_file, NULL) < 0) {
817 if (history_file != NULL)
818 stats_close(history_file);
822 summarize(data_file, history_file, &tempory_file, 13);
824 swap_and_close_files(history_file, &tempory_file);
827 int main(int argc, char *argv[])
829 GOptionContext *context;
830 GError *error = NULL;
832 struct stats_file_header *hdr;
833 struct stats_file data, *data_file;
834 struct stats_record *rec;
844 context = g_option_context_new(NULL);
845 g_option_context_add_main_entries(context, options, NULL);
847 if (g_option_context_parse(context, &argc, &argv, &error) == FALSE) {
849 g_printerr("%s\n", error->message);
852 g_printerr("An unknown error occurred\n");
856 g_option_context_free(context);
859 printf("Usage: %s [FILENAME]\n", argv[0]);
863 err = stats_open(data_file, argv[1]);
865 fprintf(stderr, "failed open file %s\n", argv[1]);
869 if (option_last_file_name != NULL) {
870 struct stats_file last;
871 if (stats_open(&last, option_last_file_name) < 0) {
872 fprintf(stderr, "failed open file %s\n",
873 option_last_file_name);
877 rec = get_end(&last);
880 if (option_start_ts == -1)
881 start_ts = time(NULL);
883 start_ts = option_start_ts;
885 if (option_create > 0)
886 stats_create(data_file, option_create, option_interval, start_ts, rec);
888 hdr = get_hdr(data_file);
889 if (hdr->magic != MAGIC) {
890 fprintf(stderr, "header file magic test failed\n");
894 stats_file_update_cache(data_file);
896 stats_hdr_info(data_file);
898 if (option_dump == TRUE)
899 stats_print_entries(data_file);
901 if (option_summary == TRUE)
902 stats_print_diff(data_file);
904 if (option_info_file_name != NULL)
905 history_file_update(data_file, option_info_file_name);
908 stats_close(data_file);