1 /*****************************************************************************
2 * RRDtool 1.3.2 Copyright by Tobi Oetiker, 1997-2008
3 * This file: Copyright 2008 Florian octo Forster
4 * Distributed under the GPL
5 *****************************************************************************
6 * rrd_restore.c Contains logic to parse XML input and create an RRD file
7 *****************************************************************************
9 *************************************************************************** */
12 * This program is free software; you can redistribute it and / or modify it
13 * under the terms of the GNU General Public License as published by the Free
14 * Software Foundation; either version 2 of the License, or (t your option)
17 * This program is distributed in the hope that it will be useful, but WITHOUT
18 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
19 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
22 * You should have received a copy of the GNU General Public License along
23 * with this program; if not, write to the Free Software Foundation, Inc.,
24 * 51 Franklin St, Fifth Floor, Boston, MA 02110 - 1301 USA
27 * Florian octo Forster <octo at verplant.org>
37 # include <unistd.h> /* for off_t */
39 typedef size_t ssize_t;
44 #if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
49 #include <libxml/parser.h>
51 #include "rrd_rpncalc.h"
52 #define ARRAY_LENGTH(a) (sizeof (a) / sizeof ((a)[0]))
53 static int opt_range_check = 0;
54 static int opt_force_overwrite = 0;
59 static int get_string_from_node(
69 temp0 = xmlNodeListGetString(doc, node->xmlChildrenNode, 1);
71 rrd_set_error("get_string_from_node: xmlNodeListGetString failed.");
75 begin_ptr = (char *) temp0;
76 while ((begin_ptr[0] != 0) && (isspace(begin_ptr[0])))
79 if (begin_ptr[0] == 0) {
86 while ((end_ptr[0] != 0) && (!isspace(end_ptr[0])))
90 strncpy(buffer, begin_ptr, buffer_size);
91 buffer[buffer_size - 1] = 0;
96 } /* int get_string_from_node */
98 static int get_int_from_node(
107 str_ptr = (char *) xmlNodeListGetString(doc, node->xmlChildrenNode, 1);
108 if (str_ptr == NULL) {
109 rrd_set_error("get_int_from_node: xmlNodeListGetString failed.");
114 temp = strtol(str_ptr, &end_ptr, 0);
117 if (str_ptr == end_ptr) {
118 rrd_set_error("get_int_from_node: Cannot parse buffer as int: %s",
126 } /* int get_int_from_node */
128 static int get_double_from_node(
137 str_ptr = (char *) xmlNodeListGetString(doc, node->xmlChildrenNode, 1);
138 if (str_ptr == NULL) {
139 rrd_set_error("get_double_from_node: xmlNodeListGetString failed.");
143 if (strstr(str_ptr, "NaN") != NULL)
151 temp = strtod(str_ptr, &end_ptr);
154 if (str_ptr == end_ptr) {
156 ("get_double_from_node: Cannot parse buffer as double: %s",
164 } /* int get_double_from_node */
166 static int value_check_range(
167 rrd_value_t *rrd_value,
168 const ds_def_t *ds_def)
173 if (opt_range_check == 0)
176 min = ds_def->par[DS_min_val].u_val;
177 max = ds_def->par[DS_max_val].u_val;
179 if (((!isnan(min)) && (*rrd_value < min))
180 || ((!isnan(max)) && (*rrd_value > max)))
184 } /* int value_check_range */
187 * Parse the <database> block within an RRA definition
189 static int parse_tag_rra_database_row(
193 rrd_value_t *rrd_value)
195 unsigned int values_count = 0;
200 for (child = node->xmlChildrenNode; child != NULL; child = child->next) {
201 if ((xmlStrcmp(child->name, (const xmlChar *) "comment") == 0)
202 || (xmlStrcmp(child->name, (const xmlChar *) "text") == 0))
204 else if (xmlStrcmp(child->name, (const xmlChar *) "v") == 0) {
205 if (values_count < rrd->stat_head->ds_cnt) {
207 get_double_from_node(doc, child,
208 rrd_value + values_count);
210 value_check_range(rrd_value + values_count,
211 rrd->ds_def + values_count);
216 rrd_set_error("parse_tag_rra_database_row: Unknown tag: %s",
223 } /* for (child = node->xmlChildrenNode) */
225 if (values_count != rrd->stat_head->ds_cnt) {
226 rrd_set_error("parse_tag_rra_database_row: Row has %u values "
227 "and RRD has %lu data sources.",
228 values_count, rrd->stat_head->ds_cnt);
233 } /* int parse_tag_rra_database_row */
235 static int parse_tag_rra_database(
240 rra_def_t *cur_rra_def;
241 unsigned int total_row_cnt;
247 for (i = 0; i < (((int) rrd->stat_head->rra_cnt) - 1); i++)
248 total_row_cnt += rrd->rra_def[i].row_cnt;
250 cur_rra_def = rrd->rra_def + i;
253 for (child = node->xmlChildrenNode; child != NULL; child = child->next) {
254 if ((xmlStrcmp(child->name, (const xmlChar *) "comment") == 0)
255 || (xmlStrcmp(child->name, (const xmlChar *) "text") == 0))
257 else if (xmlStrcmp(child->name, (const xmlChar *) "row") == 0) {
259 rrd_value_t *cur_rrd_value;
260 unsigned int total_values_count = rrd->stat_head->ds_cnt
261 * (total_row_cnt + 1);
263 /* Allocate space for the new values.. */
264 temp = (rrd_value_t *) realloc(rrd->rrd_value,
265 sizeof(rrd_value_t) *
268 rrd_set_error("parse_tag_rra_database: realloc failed.");
272 rrd->rrd_value = temp;
273 cur_rrd_value = rrd->rrd_value
274 + (rrd->stat_head->ds_cnt * total_row_cnt);
275 memset(cur_rrd_value, '\0',
276 sizeof(rrd_value_t) * rrd->stat_head->ds_cnt);
278 cur_rra_def->row_cnt++;
281 parse_tag_rra_database_row(doc, child, rrd, cur_rrd_value);
282 } /* if (xmlStrcmp (child->name, (const xmlChar *) "row") == 0) */
284 rrd_set_error("parse_tag_rra_database: Unknown tag: %s",
291 } /* for (child = node->xmlChildrenNode) */
294 } /* int parse_tag_rra_database */
297 * Parse the <cdp_prep> block within an RRA definition
299 static int parse_tag_rra_cdp_prep_ds_history(
302 cdp_prep_t *cdp_prep)
304 /* Make `history_buffer' the same size as the scratch area, plus the
305 * terminating NULL byte. */
306 char history_buffer[sizeof(((cdp_prep_t *)0)->scratch) + 1];
311 status = get_string_from_node(doc, node,
312 history_buffer, sizeof(history_buffer));
316 history_ptr = (char *) (&cdp_prep->scratch[0]);
317 for (i = 0; history_buffer[i] != '\0'; i++)
318 history_ptr[i] = (history_buffer[i] == '1') ? 1 : 0;
321 } /* int parse_tag_rra_cdp_prep_ds_history */
323 static int parse_tag_rra_cdp_prep_ds(
327 cdp_prep_t *cdp_prep)
332 memset(cdp_prep, '\0', sizeof(cdp_prep_t));
335 for (child = node->xmlChildrenNode; child != NULL; child = child->next) {
336 if (atoi(rrd->stat_head->version) == 1) {
337 cdp_prep->scratch[CDP_primary_val].u_val = 0.0;
338 cdp_prep->scratch[CDP_secondary_val].u_val = 0.0;
340 if ((xmlStrcmp(child->name, (const xmlChar *) "comment") == 0)
341 || (xmlStrcmp(child->name, (const xmlChar *) "text") == 0))
343 else if (xmlStrcmp(child->name, (const xmlChar *) "primary_value") ==
346 get_double_from_node(doc, child,
347 &cdp_prep->scratch[CDP_primary_val].
349 else if (xmlStrcmp(child->name, (const xmlChar *) "secondary_value")
352 get_double_from_node(doc, child,
353 &cdp_prep->scratch[CDP_secondary_val].
355 else if (xmlStrcmp(child->name, (const xmlChar *) "intercept") == 0)
356 status = get_double_from_node(doc, child,
358 scratch[CDP_hw_intercept].u_val);
359 else if (xmlStrcmp(child->name, (const xmlChar *) "last_intercept") ==
362 get_double_from_node(doc, child,
364 scratch[CDP_hw_last_intercept].u_val);
365 else if (xmlStrcmp(child->name, (const xmlChar *) "slope") == 0)
366 status = get_double_from_node(doc, child,
367 &cdp_prep->scratch[CDP_hw_slope].
369 else if (xmlStrcmp(child->name, (const xmlChar *) "last_slope") == 0)
370 status = get_double_from_node(doc, child,
372 scratch[CDP_hw_last_slope].u_val);
373 else if (xmlStrcmp(child->name, (const xmlChar *) "nan_count") == 0)
374 status = get_int_from_node(doc, child,
376 scratch[CDP_null_count].u_cnt);
377 else if (xmlStrcmp(child->name, (const xmlChar *) "last_nan_count") ==
380 get_int_from_node(doc, child,
382 scratch[CDP_last_null_count].u_cnt);
383 else if (xmlStrcmp(child->name, (const xmlChar *) "seasonal") == 0)
384 status = get_double_from_node(doc, child,
385 &cdp_prep->scratch[CDP_hw_seasonal].
387 else if (xmlStrcmp(child->name, (const xmlChar *) "last_seasonal") ==
390 get_double_from_node(doc, child,
391 &cdp_prep->scratch[CDP_hw_last_seasonal].
393 else if (xmlStrcmp(child->name, (const xmlChar *) "init_flag") == 0)
394 status = get_int_from_node(doc, child,
396 scratch[CDP_init_seasonal].u_cnt);
397 else if (xmlStrcmp(child->name, (const xmlChar *) "history") == 0)
398 status = parse_tag_rra_cdp_prep_ds_history(doc, child, cdp_prep);
399 else if (xmlStrcmp(child->name, (const xmlChar *) "value") == 0)
400 status = get_double_from_node(doc, child,
401 &cdp_prep->scratch[CDP_val].u_val);
402 else if (xmlStrcmp(child->name,
403 (const xmlChar *) "unknown_datapoints") == 0)
404 status = get_int_from_node(doc, child,
406 scratch[CDP_unkn_pdp_cnt].u_cnt);
408 rrd_set_error("parse_tag_rra_cdp_prep: Unknown tag: %s",
418 } /* int parse_tag_rra_cdp_prep_ds */
420 static int parse_tag_rra_cdp_prep(
424 cdp_prep_t *cdp_prep)
429 unsigned int ds_count = 0;
432 for (child = node->xmlChildrenNode; child != NULL; child = child->next) {
433 if ((xmlStrcmp(child->name, (const xmlChar *) "comment") == 0)
434 || (xmlStrcmp(child->name, (const xmlChar *) "text") == 0))
436 else if (xmlStrcmp(child->name, (const xmlChar *) "ds") == 0) {
437 if (ds_count >= rrd->stat_head->ds_cnt)
440 status = parse_tag_rra_cdp_prep_ds(doc, child, rrd,
441 cdp_prep + ds_count);
445 rrd_set_error("parse_tag_rra_cdp_prep: Unknown tag: %s",
454 if (ds_count != rrd->stat_head->ds_cnt) {
455 rrd_set_error("parse_tag_rra_cdp_prep: There are %i data sources in "
456 "the RRD file, but %i in this cdp_prep block!",
457 (int) rrd->stat_head->ds_cnt, ds_count);
462 } /* int parse_tag_rra_cdp_prep */
465 * Parse the <params> block within an RRA definition
467 static int parse_tag_rra_params(
476 for (child = node->xmlChildrenNode; child != NULL; child = child->next) {
477 if ((xmlStrcmp(child->name, (const xmlChar *) "comment") == 0)
478 || (xmlStrcmp(child->name, (const xmlChar *) "text") == 0))
481 * Parameters for CF_HWPREDICT
483 else if (xmlStrcmp(child->name, (const xmlChar *) "hw_alpha") == 0)
484 status = get_double_from_node(doc, child,
485 &rra_def->par[RRA_hw_alpha].u_val);
486 else if (xmlStrcmp(child->name, (const xmlChar *) "hw_beta") == 0)
487 status = get_double_from_node(doc, child,
488 &rra_def->par[RRA_hw_beta].u_val);
489 else if (xmlStrcmp(child->name,
490 (const xmlChar *) "dependent_rra_idx") == 0)
491 status = get_int_from_node(doc, child,
493 par[RRA_dependent_rra_idx].u_cnt);
495 * Parameters for CF_SEASONAL and CF_DEVSEASONAL
497 else if (xmlStrcmp(child->name, (const xmlChar *) "seasonal_gamma") ==
500 get_double_from_node(doc, child,
501 &rra_def->par[RRA_seasonal_gamma].u_val);
503 (child->name, (const xmlChar *) "seasonal_smooth_idx") == 0)
505 get_int_from_node(doc, child,
507 par[RRA_seasonal_smooth_idx].u_cnt);
508 else if (xmlStrcmp(child->name, (const xmlChar *) "smoothing_window")
511 get_double_from_node(doc, child,
513 par[RRA_seasonal_smoothing_window].
515 /* else if (dependent_rra_idx) ...; */
517 * Parameters for CF_FAILURES
519 else if (xmlStrcmp(child->name, (const xmlChar *) "delta_pos") == 0)
520 status = get_double_from_node(doc, child,
521 &rra_def->par[RRA_delta_pos].u_val);
522 else if (xmlStrcmp(child->name, (const xmlChar *) "delta_neg") == 0)
523 status = get_double_from_node(doc, child,
524 &rra_def->par[RRA_delta_neg].u_val);
525 else if (xmlStrcmp(child->name, (const xmlChar *) "window_len") == 0)
526 status = get_int_from_node(doc, child,
527 (int *) &rra_def->par[RRA_window_len].
529 else if (xmlStrcmp(child->name, (const xmlChar *) "failure_threshold")
532 get_int_from_node(doc, child,
534 par[RRA_failure_threshold].u_cnt);
536 * Parameters for CF_AVERAGE, CF_MAXIMUM, CF_MINIMUM, and CF_LAST
538 else if (xmlStrcmp(child->name, (const xmlChar *) "xff") == 0)
539 status = get_double_from_node(doc, child,
540 &rra_def->par[RRA_cdp_xff_val].
543 * Compatibility code for 1.0.49
545 else if (xmlStrcmp(child->name, (const xmlChar *) "value") == 0) { /* {{{ */
549 if (i >= ARRAY_LENGTH(rra_def->par)) {
554 if ((i == RRA_dependent_rra_idx)
555 || (i == RRA_seasonal_smooth_idx)
556 || (i == RRA_failure_threshold))
557 status = get_int_from_node(doc, child,
558 (int *) &rra_def->par[i].
561 status = get_double_from_node(doc, child,
562 &rra_def->par[i].u_val);
567 /* When this loops exits (sucessfully) `child' points to the last
568 * `value' tag in the list. */
569 if ((child->next == NULL)
570 || (xmlStrcmp(child->name, (const xmlChar *) "value") !=
579 rrd_set_error("parse_tag_rra_params: Unknown tag: %s",
589 } /* int parse_tag_rra_params */
592 * Parse an RRA definition
594 static int parse_tag_rra_cf(
601 status = get_string_from_node(doc, node,
602 rra_def->cf_nam, sizeof(rra_def->cf_nam));
606 status = cf_conv(rra_def->cf_nam);
608 rrd_set_error("parse_tag_rra_cf: Unknown consolidation function: %s",
614 } /* int parse_tag_rra_cf */
616 static int parse_tag_rra(
624 rra_def_t *cur_rra_def;
625 cdp_prep_t *cur_cdp_prep;
626 rra_ptr_t *cur_rra_ptr;
628 /* Allocate more rra_def space for this RRA */
632 temp = (rra_def_t *) realloc(rrd->rra_def,
634 (rrd->stat_head->rra_cnt + 1));
636 rrd_set_error("parse_tag_rra: realloc failed.");
640 cur_rra_def = rrd->rra_def + rrd->stat_head->rra_cnt;
641 memset(cur_rra_def, '\0', sizeof(rra_def_t));
644 /* allocate cdp_prep_t */
648 temp = (cdp_prep_t *) realloc(rrd->cdp_prep, sizeof(cdp_prep_t)
649 * rrd->stat_head->ds_cnt
650 * (rrd->stat_head->rra_cnt + 1));
652 rrd_set_error("parse_tag_rra: realloc failed.");
655 rrd->cdp_prep = temp;
656 cur_cdp_prep = rrd->cdp_prep
657 + (rrd->stat_head->ds_cnt * rrd->stat_head->rra_cnt);
658 memset(cur_cdp_prep, '\0',
659 sizeof(cdp_prep_t) * rrd->stat_head->ds_cnt);
662 /* allocate rra_ptr_t */
666 temp = (rra_ptr_t *) realloc(rrd->rra_ptr,
668 (rrd->stat_head->rra_cnt + 1));
670 rrd_set_error("parse_tag_rra: realloc failed.");
674 cur_rra_ptr = rrd->rra_ptr + rrd->stat_head->rra_cnt;
675 memset(cur_rra_ptr, '\0', sizeof(rra_ptr_t));
678 /* All space successfully allocated, increment number of RRAs. */
679 rrd->stat_head->rra_cnt++;
682 for (child = node->xmlChildrenNode; child != NULL; child = child->next) {
683 if ((xmlStrcmp(child->name, (const xmlChar *) "comment") == 0)
684 || (xmlStrcmp(child->name, (const xmlChar *) "text") == 0))
686 else if (xmlStrcmp(child->name, (const xmlChar *) "cf") == 0)
687 status = parse_tag_rra_cf(doc, child, cur_rra_def);
688 else if (xmlStrcmp(child->name, (const xmlChar *) "pdp_per_row") == 0)
689 status = get_int_from_node(doc, child,
690 (int *) &cur_rra_def->pdp_cnt);
691 else if (atoi(rrd->stat_head->version) == 1
692 && xmlStrcmp(child->name, (const xmlChar *) "xff") == 0)
693 status = get_double_from_node(doc, child,
694 (double *) &cur_rra_def->
695 par[RRA_cdp_xff_val].u_val);
696 else if (atoi(rrd->stat_head->version) >= 2
697 && xmlStrcmp(child->name, (const xmlChar *) "params") == 0)
698 status = parse_tag_rra_params(doc, child, cur_rra_def);
699 else if (xmlStrcmp(child->name, (const xmlChar *) "cdp_prep") == 0)
700 status = parse_tag_rra_cdp_prep(doc, child, rrd, cur_cdp_prep);
701 else if (xmlStrcmp(child->name, (const xmlChar *) "database") == 0)
702 status = parse_tag_rra_database(doc, child, rrd);
704 rrd_set_error("parse_tag_rra: Unknown tag: %s", child->name);
712 /* Set the RRA pointer to a random location */
713 cur_rra_ptr->cur_row = rrd_random() % cur_rra_def->row_cnt;
716 } /* int parse_tag_rra */
719 * Parse a DS definition
721 static int parse_tag_ds_cdef(
729 status = get_string_from_node(doc, node, buffer, sizeof(buffer));
733 /* We're always working on the last DS that has been added to the structure
734 * when we get here */
735 parseCDEF_DS(buffer, rrd, rrd->stat_head->ds_cnt - 1);
738 } /* int parse_tag_ds_cdef */
740 static int parse_tag_ds_type(
747 status = get_string_from_node(doc, node,
748 ds_def->dst, sizeof(ds_def->dst));
752 status = dst_conv(ds_def->dst);
754 rrd_set_error("parse_tag_ds_type: Unknown data source type: %s",
760 } /* int parse_tag_ds_type */
762 static int parse_tag_ds(
770 ds_def_t *cur_ds_def;
771 pdp_prep_t *cur_pdp_prep;
774 * If there are DS definitions after RRA definitions the number of values,
775 * cdp_prep areas and so on will be calculated wrong. Thus, enforce a
776 * specific order in this case.
778 if (rrd->stat_head->rra_cnt > 0) {
779 rrd_set_error("parse_tag_ds: All data source definitions MUST "
780 "precede the RRA definitions!");
784 /* Allocate space for the new DS definition */
788 temp = (ds_def_t *) realloc(rrd->ds_def,
790 (rrd->stat_head->ds_cnt + 1));
792 rrd_set_error("parse_tag_ds: malloc failed.");
796 cur_ds_def = rrd->ds_def + rrd->stat_head->ds_cnt;
797 memset(cur_ds_def, '\0', sizeof(ds_def_t));
800 /* Allocate pdp_prep space for the new DS definition */
804 temp = (pdp_prep_t *) realloc(rrd->pdp_prep,
806 (rrd->stat_head->ds_cnt + 1));
808 rrd_set_error("parse_tag_ds: malloc failed.");
811 rrd->pdp_prep = temp;
812 cur_pdp_prep = rrd->pdp_prep + rrd->stat_head->ds_cnt;
813 memset(cur_pdp_prep, '\0', sizeof(pdp_prep_t));
816 /* All allocations successful, let's increment the number of DSes. */
817 rrd->stat_head->ds_cnt++;
820 for (child = node->xmlChildrenNode; child != NULL; child = child->next) {
821 if ((xmlStrcmp(child->name, (const xmlChar *) "comment") == 0)
822 || (xmlStrcmp(child->name, (const xmlChar *) "text") == 0))
824 else if (xmlStrcmp(child->name, (const xmlChar *) "name") == 0)
825 status = get_string_from_node(doc, child,
827 sizeof(cur_ds_def->ds_nam));
828 else if (xmlStrcmp(child->name, (const xmlChar *) "type") == 0)
829 status = parse_tag_ds_type(doc, child, cur_ds_def);
830 else if (xmlStrcmp(child->name,
831 (const xmlChar *) "minimal_heartbeat") == 0)
832 status = get_int_from_node(doc, child,
833 (int *) &cur_ds_def->par[DS_mrhb_cnt].
835 else if (xmlStrcmp(child->name, (const xmlChar *) "min") == 0)
836 status = get_double_from_node(doc, child,
837 &cur_ds_def->par[DS_min_val].u_val);
838 else if (xmlStrcmp(child->name, (const xmlChar *) "max") == 0)
839 status = get_double_from_node(doc, child,
840 &cur_ds_def->par[DS_max_val].u_val);
841 else if (xmlStrcmp(child->name, (const xmlChar *) "cdef") == 0)
842 status = parse_tag_ds_cdef(doc, child, rrd);
843 else if (xmlStrcmp(child->name, (const xmlChar *) "last_ds") == 0)
844 status = get_string_from_node(doc, child,
845 cur_pdp_prep->last_ds,
846 sizeof(cur_pdp_prep->last_ds));
847 else if (xmlStrcmp(child->name, (const xmlChar *) "value") == 0)
848 status = get_double_from_node(doc, child,
849 &cur_pdp_prep->scratch[PDP_val].
851 else if (xmlStrcmp(child->name, (const xmlChar *) "unknown_sec") == 0)
852 status = get_int_from_node(doc, child,
853 (int *) &cur_pdp_prep->
854 scratch[PDP_unkn_sec_cnt].u_cnt);
856 rrd_set_error("parse_tag_ds: Unknown tag: %s", child->name);
865 } /* int parse_tag_ds */
870 static int parse_tag_rrd(
879 for (child = node->xmlChildrenNode; child != NULL; child = child->next) {
880 if ((xmlStrcmp(child->name, (const xmlChar *) "comment") == 0)
881 || (xmlStrcmp(child->name, (const xmlChar *) "text") == 0))
883 else if (xmlStrcmp(child->name, (const xmlChar *) "version") == 0)
884 status = get_string_from_node(doc, child,
885 rrd->stat_head->version,
886 sizeof(rrd->stat_head->version));
887 else if (xmlStrcmp(child->name, (const xmlChar *) "step") == 0)
888 status = get_int_from_node(doc, child,
889 (int *) &rrd->stat_head->pdp_step);
890 else if (xmlStrcmp(child->name, (const xmlChar *) "lastupdate") == 0)
891 status = get_int_from_node(doc, child,
892 (int *) &rrd->live_head->last_up);
893 else if (xmlStrcmp(child->name, (const xmlChar *) "ds") == 0)
894 status = parse_tag_ds(doc, child, rrd);
895 else if (xmlStrcmp(child->name, (const xmlChar *) "rra") == 0)
896 status = parse_tag_rra(doc, child, rrd);
898 rrd_set_error("parse_tag_rrd: Unknown tag: %s", child->name);
907 } /* int parse_tag_rrd */
909 static rrd_t *parse_file(
910 const char *filename)
918 doc = xmlParseFile(filename);
920 rrd_set_error("Document not parsed successfully.");
924 cur = xmlDocGetRootElement(doc);
926 rrd_set_error("Document is empty.");
931 if (xmlStrcmp(cur->name, (const xmlChar *) "rrd") != 0) {
933 ("Document of the wrong type, root node is not \"rrd\".");
938 rrd = (rrd_t *) malloc(sizeof(rrd_t));
940 rrd_set_error("parse_file: malloc failed.");
944 memset(rrd, '\0', sizeof(rrd_t));
946 rrd->stat_head = (stat_head_t *) malloc(sizeof(stat_head_t));
947 if (rrd->stat_head == NULL) {
948 rrd_set_error("parse_tag_rrd: malloc failed.");
953 memset(rrd->stat_head, '\0', sizeof(stat_head_t));
955 strncpy(rrd->stat_head->cookie, "RRD", sizeof(rrd->stat_head->cookie));
956 rrd->stat_head->float_cookie = FLOAT_COOKIE;
958 rrd->live_head = (live_head_t *) malloc(sizeof(live_head_t));
959 if (rrd->live_head == NULL) {
960 rrd_set_error("parse_tag_rrd: malloc failed.");
962 free(rrd->stat_head);
966 memset(rrd->live_head, '\0', sizeof(live_head_t));
968 status = parse_tag_rrd(doc, cur, rrd);
977 } /* rrd_t *parse_file */
979 static int write_file(
980 const char *file_name,
985 unsigned int rra_offset;
987 if (strcmp("-", file_name) == 0)
990 int fd_flags = O_WRONLY | O_CREAT;
993 #if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
994 fd_flags |= O_BINARY;
997 if (opt_force_overwrite == 0)
1000 fd = open(file_name, fd_flags, 0666);
1002 rrd_set_error("creating '%s': %s", file_name,
1003 rrd_strerror(errno));
1007 fh = fdopen(fd, "wb");
1009 rrd_set_error("fdopen failed: %s", rrd_strerror(errno));
1014 if (atoi(rrd->stat_head->version) < 3) {
1015 /* we output 3 or higher */
1016 strcpy(rrd->stat_head->version, "0003");
1018 fwrite(rrd->stat_head, sizeof(stat_head_t), 1, fh);
1019 fwrite(rrd->ds_def, sizeof(ds_def_t), rrd->stat_head->ds_cnt, fh);
1020 fwrite(rrd->rra_def, sizeof(rra_def_t), rrd->stat_head->rra_cnt, fh);
1021 fwrite(rrd->live_head, sizeof(live_head_t), 1, fh);
1022 fwrite(rrd->pdp_prep, sizeof(pdp_prep_t), rrd->stat_head->ds_cnt, fh);
1023 fwrite(rrd->cdp_prep, sizeof(cdp_prep_t),
1024 rrd->stat_head->rra_cnt * rrd->stat_head->ds_cnt, fh);
1025 fwrite(rrd->rra_ptr, sizeof(rra_ptr_t), rrd->stat_head->rra_cnt, fh);
1027 /* calculate the number of rrd_values to dump */
1029 for (i = 0; i < rrd->stat_head->rra_cnt; i++) {
1030 unsigned long num_rows = rrd->rra_def[i].row_cnt;
1031 unsigned long cur_row = rrd->rra_ptr[i].cur_row;
1032 unsigned long ds_cnt = rrd->stat_head->ds_cnt;
1034 fwrite(rrd->rrd_value +
1035 (rra_offset + num_rows - 1 - cur_row) * ds_cnt,
1036 sizeof(rrd_value_t), (cur_row + 1) * ds_cnt, fh);
1038 fwrite(rrd->rrd_value + rra_offset * ds_cnt,
1039 sizeof(rrd_value_t), (num_rows - 1 - cur_row) * ds_cnt, fh);
1041 rra_offset += num_rows;
1044 /* lets see if we had an error */
1046 rrd_set_error("a file error occurred while creating '%s'", file_name);
1053 } /* int write_file */
1061 /* init rrd clean */
1063 opterr = 0; /* initialize getopt */
1066 int option_index = 0;
1067 static struct option long_options[] = {
1068 {"range-check", no_argument, 0, 'r'},
1069 {"force-overwrite", no_argument, 0, 'f'},
1073 opt = getopt_long(argc, argv, "rf", long_options, &option_index);
1080 opt_range_check = 1;
1084 opt_force_overwrite = 1;
1088 rrd_set_error("usage rrdtool %s [--range-check|-r] "
1089 "[--force-overwrite/-f] file.xml file.rrd",
1096 if ((argc - optind) != 2) {
1097 rrd_set_error("usage rrdtool %s [--range-check/-r] "
1098 "[--force-overwrite/-f] file.xml file.rrd", argv[0]);
1102 rrd = parse_file(argv[optind]);
1106 if (write_file(argv[optind + 1], rrd) != 0) {
1113 } /* int rrd_restore */
1115 /* vim: set sw=2 sts=2 ts=8 et fdm=marker : */