5 * Copyright (C) 2010-2014 BMW Car IT GmbH.
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
26 #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 bool option_dump = false;
103 static bool 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 bool parse_start_ts(const char *key, const char *value,
109 gpointer user_data, GError **error)
113 strptime(value, "%FT%TZ", &tm);
114 option_start_ts = mktime(&tm);
119 static GOptionEntry options[] = {
120 { "create", 'c', 0, G_OPTION_ARG_INT, &option_create,
121 "Create a .data file with NR faked entries", "NR" },
122 { "interval", 'i', 0, G_OPTION_ARG_INT, &option_interval,
123 "Interval in seconds (used with create)", "INTERVAL" },
124 { "dump", 'd', 0, G_OPTION_ARG_NONE, &option_dump,
125 "Dump contents of .data file" },
126 { "summary", 's', 0, G_OPTION_ARG_NONE, &option_summary,
127 "Summary of .data file" },
128 { "info", 'f', 0, G_OPTION_ARG_FILENAME, &option_info_file_name,
130 { "startts", 't', 0, G_OPTION_ARG_CALLBACK, parse_start_ts,
131 "Set start time for creating .data file "
132 "(example 2010-11-05T23:00:12Z)", "TS"},
133 { "last", 'l', 0, G_OPTION_ARG_FILENAME, &option_last_file_name,
134 "Start values from last .data file" },
138 static struct stats_file_header *get_hdr(struct stats_file *file)
140 return (struct stats_file_header *)file->addr;
143 static struct stats_record *get_begin(struct stats_file *file)
145 unsigned int off = get_hdr(file)->begin;
147 return (struct stats_record *)(file->addr + off);
150 static struct stats_record *get_end(struct stats_file *file)
152 unsigned int off = get_hdr(file)->end;
154 return (struct stats_record *)(file->addr + off);
157 static struct stats_record *get_home(struct stats_file *file)
159 struct stats_file_header *hdr;
163 if (hdr->home == UINT_MAX)
166 return (struct stats_record *)(file->addr + hdr->home);
169 static struct stats_record *get_roaming(struct stats_file *file)
171 struct stats_file_header *hdr;
175 if (hdr->roaming == UINT_MAX)
178 return (struct stats_record *)(file->addr + hdr->roaming);
181 static void set_end(struct stats_file *file, struct stats_record *end)
183 struct stats_file_header *hdr;
186 hdr->end = (char *)end - file->addr;
189 static int get_index(struct stats_file *file, struct stats_record *rec)
191 return rec - file->first;
194 static struct stats_record *get_next(struct stats_file *file,
195 struct stats_record *cur)
199 if (cur > file->last)
205 static struct stats_record *get_iterator_begin(struct stats_file *file)
207 return get_next(file, get_begin(file));
210 static struct stats_record *get_iterator_end(struct stats_file *file)
212 return get_next(file, get_end(file));
215 static void stats_print_record(struct stats_record *rec)
219 strftime(buffer, 30, "%d-%m-%Y %T", localtime(&rec->ts));
220 printf("%p %lld %s %01d %d %d %d %d %d %d %d %d %d\n",
221 rec, (long long int)rec->ts, buffer,
223 rec->data.rx_packets,
224 rec->data.tx_packets,
229 rec->data.rx_dropped,
230 rec->data.tx_dropped,
234 static void stats_hdr_info(struct stats_file *file)
236 struct stats_file_header *hdr;
237 struct stats_record *begin, *end, *home, *roaming;
238 unsigned int home_idx, roaming_idx;
241 begin = get_begin(file);
244 home = get_home(file);
248 home_idx = get_index(file, home);
250 roaming = get_roaming(file);
252 roaming_idx = UINT_MAX;
254 roaming_idx = get_index(file, roaming);
256 printf("Data Structure Sizes\n");
257 printf(" sizeof header %zd/0x%02zx\n",
258 sizeof(struct stats_file_header),
259 sizeof(struct stats_file_header));
260 printf(" sizeof entry %zd/0%02zx\n\n",
261 sizeof(struct stats_record),
262 sizeof(struct stats_record));
265 printf(" addr %p\n", file->addr);
266 printf(" len %zd\n", file->len);
268 printf(" max nr entries %d\n", file->max_nr);
269 printf(" nr entries %d\n\n", file->nr);
272 printf(" magic 0x%08x\n", hdr->magic);
273 printf(" begin [%d] 0x%08x\n",
274 get_index(file, begin), hdr->begin);
275 printf(" end [%d] 0x%08x\n",
276 get_index(file, end), hdr->end);
277 printf(" home [%d] 0x%08x\n",
278 home_idx, hdr->home);
279 printf(" roaming [%d] 0x%08x\n\n",
280 roaming_idx, hdr->roaming);
283 printf("Pointers\n");
284 printf(" hdr %p\n", hdr);
285 printf(" begin %p\n", begin);
286 printf(" end %p\n", end);
287 printf(" home %p\n", home);
288 printf(" romaing %p\n", roaming);
289 printf(" first %p\n", file->first);
290 printf(" last %p\n\n", file->last);
293 static void stats_print_entries(struct stats_file *file)
295 struct stats_record *it;
298 printf("[ idx] ptr ts ts rx_packets tx_packets rx_bytes "
299 "tx_bytes rx_errors tx_errors rx_dropped tx_dropped time\n\n");
301 for (i = 0, it = file->first; it <= file->last; it++, i++) {
302 printf("[%04d] ", i);
303 stats_print_record(it);
307 static void stats_print_rec_diff(struct stats_record *begin,
308 struct stats_record *end)
310 printf("\trx_packets: %d\n",
311 end->data.rx_packets - begin->data.rx_packets);
312 printf("\ttx_packets: %d\n",
313 end->data.tx_packets - begin->data.tx_packets);
314 printf("\trx_bytes: %d\n",
315 end->data.rx_bytes - begin->data.rx_bytes);
316 printf("\ttx_bytes: %d\n",
317 end->data.tx_bytes - begin->data.tx_bytes);
318 printf("\trx_errors: %d\n",
319 end->data.rx_errors - begin->data.rx_errors);
320 printf("\ttx_errors: %d\n",
321 end->data.tx_errors - begin->data.tx_errors);
322 printf("\trx_dropped: %d\n",
323 end->data.rx_dropped - begin->data.rx_dropped);
324 printf("\ttx_dropped: %d\n",
325 end->data.tx_dropped - begin->data.tx_dropped);
326 printf("\ttime: %d\n",
327 end->data.time - begin->data.time);
330 static void stats_print_diff(struct stats_file *file)
332 struct stats_record *begin, *end;
334 begin = get_begin(file);
335 begin = get_next(file, begin);
338 printf("\n(begin + 1)\n");
339 printf("\t[%04d] ", get_index(file, begin));
340 stats_print_record(begin);
342 printf("\t[%04d] ", get_index(file, end));
343 stats_print_record(end);
345 if (file->home_first && get_home(file)) {
347 stats_print_rec_diff(file->home_first, get_home(file));
350 if (file->roaming_first && get_roaming(file)) {
351 printf("\roaming\n");
352 stats_print_rec_diff(file->roaming_first, get_roaming(file));
356 static void update_max_nr_entries(struct stats_file *file)
358 file->max_nr = (file->len - sizeof(struct stats_file_header)) /
359 sizeof(struct stats_record);
362 static void update_nr_entries(struct stats_file *file)
364 struct stats_record *begin, *end;
367 begin = get_begin(file);
370 nr = get_index(file, end) - get_index(file, begin);
378 static void update_first(struct stats_file *file)
380 file->first = (struct stats_record *)(file->addr +
381 sizeof(struct stats_file_header));
384 static void update_last(struct stats_file *file)
386 struct stats_record *last;
389 last += file->max_nr - 1;
394 static int stats_file_update_cache(struct stats_file *file)
396 struct stats_record *it, *end;
398 update_max_nr_entries(file);
399 update_nr_entries(file);
402 file->home_first = NULL;
403 file->roaming_first = NULL;
405 end = get_iterator_end(file);
406 for (it = get_iterator_begin(file);
408 it = get_next(file, it)) {
410 if (!file->home_first && it->roaming == 0)
411 file->home_first = it;
413 if (!file->roaming_first && it->roaming == 1)
414 file->roaming_first = it;
416 if (file->home_first && file->roaming_first)
423 static int stats_file_remap(struct stats_file *file, size_t size)
425 size_t page_size, new_size;
429 page_size = sysconf(_SC_PAGESIZE);
430 new_size = (size + page_size - 1) & ~(page_size - 1);
432 err = ftruncate(file->fd, new_size);
434 fprintf(stderr, "ftrunctate error %s for %s",
435 strerror(errno), file->name);
440 addr = mmap(NULL, new_size, PROT_READ | PROT_WRITE,
441 MAP_SHARED, file->fd, 0);
443 addr = mremap(file->addr, file->len, new_size, MREMAP_MAYMOVE);
446 if (addr == MAP_FAILED) {
447 fprintf(stderr, "mmap error %s for %s\n",
448 strerror(errno), file->name);
453 file->len = new_size;
454 file->max_len = new_size;
459 static int stats_open(struct stats_file *file, const char *name)
461 struct stats_file_header *hdr;
466 bzero(file, sizeof(struct stats_file));
469 file->name = g_strdup(name);
471 file->fd = TFR(open(file->name,
472 O_RDWR | O_CREAT | O_CLOEXEC, 0644));
473 if (file->fd == -1) {
474 fprintf(stderr, "open error %s for %s\n",
475 strerror(errno), file->name);
479 err = fstat(file->fd, &tm);
481 fprintf(stderr, "fstat error %s for %s\n",
482 strerror(errno), file->name);
486 size = (size_t)tm.st_size;
488 file->name = g_strdup("stats.XXXXXX.tmp");
489 file->fd = g_mkstemp_full(file->name, O_RDWR | O_CREAT, 0644);
490 if (file->fd == -1) {
491 fprintf(stderr, "creating tmp failed\n");
497 size = sysconf(_SC_PAGESIZE);
499 err = stats_file_remap(file, size);
501 fprintf(stderr, "remap failed\n");
505 /* Initialize new file */
507 if (hdr->magic != MAGIC ||
508 hdr->begin < sizeof(struct stats_file_header) ||
509 hdr->end < sizeof(struct stats_file_header) ||
510 hdr->home < sizeof(struct stats_file_header) ||
511 hdr->roaming < sizeof(struct stats_file_header) ||
512 hdr->begin > file->len ||
513 hdr->end > file->len) {
515 hdr->begin = sizeof(struct stats_file_header);
516 hdr->end = sizeof(struct stats_file_header);
517 hdr->home = UINT_MAX;
518 hdr->roaming = UINT_MAX;
521 stats_file_update_cache(file);
526 static void stats_close(struct stats_file *file)
528 munmap(file->addr, file->len);
533 static int stats_create(struct stats_file *file, unsigned int nr,
534 unsigned int interval, time_t start_ts,
535 struct stats_record *start)
539 struct stats_record *cur, *next;
540 struct stats_file_header *hdr;
542 unsigned int step_ts;
543 unsigned int roaming = FALSE;
548 hdr->begin = sizeof(struct stats_file_header);
549 hdr->end = sizeof(struct stats_file_header);
550 hdr->home = UINT_MAX;
551 hdr->roaming = UINT_MAX;
553 stats_file_update_cache(file);
556 struct stats_record *rec;
559 memcpy(rec, start, sizeof(struct stats_record));
561 get_end(file)->ts = start_ts;
564 for (i = 0; i < nr; i++) {
565 if (file->last == get_end(file)) {
566 err = stats_file_remap(file, file->len +
567 sysconf(_SC_PAGESIZE));
571 stats_file_update_cache(file);
574 next = get_next(file, cur);
576 step_ts = (rand() % interval);
580 next->ts = cur->ts + step_ts;
581 next->roaming = roaming;
582 next->data.time = cur->data.time + step_ts;
584 next->data.rx_packets = cur->data.rx_packets;
585 next->data.rx_bytes = cur->data.rx_bytes;
587 if (rand() % 3 == 0) {
589 next->data.rx_packets += pkt;
590 next->data.rx_bytes += pkt * (rand() % 1500);
593 next->data.tx_packets = cur->data.tx_packets;
594 next->data.tx_bytes = cur->data.tx_bytes;
596 if (rand() % 3 == 0) {
598 next->data.tx_packets += pkt;
599 next->data.tx_bytes += pkt * (rand() % 1500);
604 if ((rand() % 50) == 0)
605 roaming = roaming ? FALSE : TRUE;
612 static struct stats_record *get_next_record(struct stats_iter *iter)
614 if (iter->it != iter->end) {
615 struct stats_record *tmp;
618 iter->it = get_next(iter->file, iter->it);
626 static int append_record(struct stats_file *file,
627 struct stats_record *rec)
629 struct stats_record *cur, *next;
632 if (file->last == get_end(file)) {
633 err = stats_file_remap(file, file->len +
634 sysconf(_SC_PAGESIZE));
638 stats_file_update_cache(file);
642 next = get_next(file, cur);
644 memcpy(next, rec, sizeof(struct stats_record));
651 static struct stats_record *process_file(struct stats_iter *iter,
652 struct stats_file *temp_file,
653 struct stats_record *cur,
654 GDate *date_change_step_size,
655 int account_period_offset)
657 struct stats_record *home, *roaming;
658 struct stats_record *next;
664 cur = get_next_record(iter);
665 next = get_next_record(iter);
679 g_date_set_time_t(&date_cur, cur->ts);
680 g_date_set_time_t(&date_next, next->ts);
682 if (g_date_compare(&date_cur, date_change_step_size) < 0) {
683 /* month period size */
684 GDateDay day_cur, day_next;
685 GDateMonth month_cur, month_next;
687 month_cur = g_date_get_month(&date_cur);
688 month_next = g_date_get_month(&date_next);
690 day_cur = g_date_get_day(&date_cur);
691 day_next = g_date_get_day(&date_next);
693 if (day_cur == day_next && month_cur != month_next)
695 else if (day_cur < account_period_offset
696 && day_next >= account_period_offset)
699 /* day period size */
700 if (g_date_days_between(&date_cur, &date_next) > 0)
706 append_record(temp_file, home);
711 append_record(temp_file, roaming);
717 next = get_next_record(iter);
723 static int summarize(struct stats_file *data_file,
724 struct stats_file *history_file,
725 struct stats_file *temp_file,
726 int account_period_offset)
728 struct stats_iter data_iter;
729 struct stats_iter history_iter;
730 struct stats_record *cur, *next;
732 GDate today, date_change_step_size;
735 * First calculate the date when switch from monthly
736 * accounting period size to daily size
738 g_date_set_time_t(&today, time(NULL));
740 date_change_step_size = today;
741 if (g_date_get_day(&today) - account_period_offset >= 0)
742 g_date_subtract_months(&date_change_step_size, 2);
744 g_date_subtract_months(&date_change_step_size, 3);
746 g_date_set_day(&date_change_step_size, account_period_offset);
749 /* Now process history file */
753 history_iter.file = history_file;
754 history_iter.begin = get_iterator_begin(history_iter.file);
755 history_iter.end = get_iterator_end(history_iter.file);
756 history_iter.it = history_iter.begin;
758 cur = process_file(&history_iter, temp_file, NULL,
759 &date_change_step_size,
760 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 && 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 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 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) {
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)) {
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) {
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_interval == 0) {
886 printf("interval cannot be zero, using the default value\n");
890 if (option_create > 0)
891 stats_create(data_file, option_create, option_interval,
894 hdr = get_hdr(data_file);
895 if (hdr->magic != MAGIC) {
896 fprintf(stderr, "header file magic test failed\n");
900 stats_file_update_cache(data_file);
902 stats_hdr_info(data_file);
905 stats_print_entries(data_file);
908 stats_print_diff(data_file);
910 if (option_info_file_name)
911 history_file_update(data_file, option_info_file_name);
914 stats_close(data_file);