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index 404f30f1205b759b8d1e5babb65bec2c3505c3eb..9d4765c1f0ad82a5f0e42a18218dfbe8396c2c91 100644 (file)
--- a/program/src/rrd_fetch.c
+++ b/program/src/rrd_fetch.c
/*****************************************************************************
- * RRDtool 1.2.9 Copyright by Tobi Oetiker, 1997-2005
+ * RRDtool 1.2.28 Copyright by Tobi Oetiker, 1997-2008
*****************************************************************************
* rrd_fetch.c read date from an rrd to use for further processing
*****************************************************************************
*****************************************************************************/
#include "rrd_tool.h"
+
+#include "rrd_is_thread_safe.h"
/*#define DEBUG*/
int
long step_tmp =1;
time_t start_tmp=0, end_tmp=0;
- enum cf_en cf_idx;
+ const char *cf;
struct rrd_time_value start_tv, end_tv;
char *parsetime_error = NULL;
rrd_set_error("not enough arguments");
return -1;
}
-
- if ((int)(cf_idx=cf_conv(argv[optind+1])) == -1 ){
- return -1;
- }
- if (rrd_fetch_fn(argv[optind],cf_idx,start,end,step,ds_cnt,ds_namv,data) == -1)
+ cf = argv[optind+1];
+
+ if (rrd_fetch_r(argv[optind],cf,start,end,step,ds_cnt,ds_namv,data) == -1)
return(-1);
return (0);
}
+int
+rrd_fetch_r(
+ const char *filename, /* name of the rrd */
+ const char *cf, /* which consolidation function ?*/
+ time_t *start,
+ time_t *end, /* which time frame do you want ?
+ * will be changed to represent reality */
+ unsigned long *step, /* which stepsize do you want?
+ * will be changed to represent reality */
+ unsigned long *ds_cnt, /* number of data sources in file */
+ char ***ds_namv, /* names of data_sources */
+ rrd_value_t **data) /* two dimensional array containing the data */
+{
+ enum cf_en cf_idx;
+
+ if ((int)(cf_idx=cf_conv(cf)) == -1 ){
+ return -1;
+ }
+
+ return (rrd_fetch_fn(filename,cf_idx,start,end,step,ds_cnt,ds_namv,data));
+}
+
int
rrd_fetch_fn(
- char *filename, /* name of the rrd */
+ const char *filename, /* name of the rrd */
enum cf_en cf_idx, /* which consolidation function ?*/
time_t *start,
time_t *end, /* which time frame do you want ?
FILE *in_file;
time_t cal_start,cal_end, rra_start_time,rra_end_time;
long best_full_rra=0, best_part_rra=0, chosen_rra=0, rra_pointer=0;
- long best_step_diff=0, tmp_step_diff=0, tmp_match=0, best_match=0;
+ long best_full_step_diff=0, best_part_step_diff=0, tmp_step_diff=0, tmp_match=0, best_match=0;
long full_match, rra_base;
long start_offset, end_offset;
int first_full = 1;
int first_part = 1;
rrd_t rrd;
rrd_value_t *data_ptr;
- unsigned long rows = (*end - *start) / *step;
+ unsigned long rows;
#ifdef DEBUG
fprintf(stderr,"Entered rrd_fetch_fn() searching for the best match\n");
-fprintf(stderr,"Looking for: start %10lu end %10lu step %5lu rows %lu\n",
- *start,*end,*step,rows);
+fprintf(stderr,"Looking for: start %10lu end %10lu step %5lu\n",
+ *start,*end,*step);
#endif
if(rrd_open(filename,&in_file,&rrd, RRD_READONLY)==-1)
tmp_step_diff = labs(*step - (rrd.stat_head->pdp_step
* rrd.rra_def[i].pdp_cnt));
/* best full match */
- if(cal_end >= *end
- && cal_start <= *start){
- if (first_full || (tmp_step_diff < best_step_diff)){
+ if(cal_start <= *start){
+ if (first_full || (tmp_step_diff < best_full_step_diff)){
first_full=0;
- best_step_diff = tmp_step_diff;
+ best_full_step_diff = tmp_step_diff;
best_full_rra=i;
#ifdef DEBUG
fprintf(stderr,"best full match so far\n");
tmp_match = full_match;
if (cal_start>*start)
tmp_match -= (cal_start-*start);
- if (cal_end<*end)
- tmp_match -= (*end-cal_end);
if (first_part ||
(best_match < tmp_match) ||
(best_match == tmp_match &&
- tmp_step_diff < best_step_diff)){
+ tmp_step_diff < best_part_step_diff)){
#ifdef DEBUG
fprintf(stderr,"best partial so far\n");
#endif
first_part=0;
best_match = tmp_match;
- best_step_diff = tmp_step_diff;
+ best_part_step_diff = tmp_step_diff;
best_part_rra =i;
} else {
#ifdef DEBUG
/* set the wish parameters to their real values */
*step = rrd.stat_head->pdp_step * rrd.rra_def[chosen_rra].pdp_cnt;
*start -= (*start % *step);
- if (*end % *step) *end += (*step - *end % *step);
- rows = (*end - *start) / *step;
+ *end += (*step - *end % *step);
+ rows = (*end - *start) / *step + 1;
#ifdef DEBUG
fprintf(stderr,"We found: start %10lu end %10lu step %5lu rows %lu\n",
#endif
/* fill the gap at the start if needs be */
-
- if (start_offset <= 0)
- rra_pointer = rrd.rra_ptr[chosen_rra].cur_row+1;
- else
- rra_pointer = rrd.rra_ptr[chosen_rra].cur_row+1+start_offset;
+ if (*start <= rra_end_time && *end >= rra_start_time - *step){
+
+ if (start_offset <= 0)
+ rra_pointer = rrd.rra_ptr[chosen_rra].cur_row+1;
+ else
+ rra_pointer = rrd.rra_ptr[chosen_rra].cur_row+1+start_offset;
- if(fseek(in_file,(rra_base
+ if(fseek(in_file,(rra_base
+ (rra_pointer
* *ds_cnt
* sizeof(rrd_value_t))),SEEK_SET) != 0){
- rrd_set_error("seek error in RRA");
- for (i=0;(unsigned)i<*ds_cnt;i++)
- free((*ds_namv)[i]);
- free(*ds_namv);
- rrd_free(&rrd);
- free(*data);
- *data = NULL;
- fclose(in_file);
- return(-1);
+ rrd_set_error("seek error in RRA");
+ for (i=0;(unsigned)i<*ds_cnt;i++)
+ free((*ds_namv)[i]);
+ free(*ds_namv);
+ rrd_free(&rrd);
+ free(*data);
+ *data = NULL;
+ fclose(in_file);
+ return(-1);
- }
+ }
#ifdef DEBUG
- fprintf(stderr,"First Seek: rra_base %lu rra_pointer %lu\n",
- rra_base, rra_pointer);
+ fprintf(stderr,"First Seek: rra_base %lu rra_pointer %lu\n",
+ rra_base, rra_pointer);
#endif
+ }
+
/* step trough the array */
for (i=start_offset;