nightingale1/vendor/github.com/open-falcon/rrdlite/rrd_info.c

381 lines
10 KiB
C

/*****************************************************************************
* RRDtool 1.4.9 Copyright by Tobi Oetiker, 1997-2014
*****************************************************************************
* rrd_info Get Information about the configuration of an RRD
*****************************************************************************/
#include "rrd_tool.h"
#include "rrd_rpncalc.h"
#ifndef RRD_LITE
#include "rrd_client.h"
#endif
#include <stdarg.h>
/* proto */
rrd_info_t *rrd_info(int, char **);
rrd_info_t *rrd_info_r(char *filename, int *ret_p);
/* allocate memory for string */
char *sprintf_alloc(char *fmt, ...) {
char *str = NULL;
va_list argp;
#ifdef HAVE_VASPRINTF
va_start( argp, fmt );
if (vasprintf( &str, fmt, argp ) == -1){
va_end(argp);
//rrd_set_error ("vasprintf failed.");
return(NULL);
}
#else
int maxlen = 1024 + strlen(fmt);
str = (char*)malloc(sizeof(char) * (maxlen + 1));
if (str != NULL) {
va_start(argp, fmt);
#ifdef HAVE_VSNPRINTF
vsnprintf(str, maxlen, fmt, argp);
#else
vsprintf(str, fmt, argp);
#endif
}
#endif /* HAVE_VASPRINTF */
va_end(argp);
return str;
}
/* the function formerly known as push was renamed to info_push and later
* rrd_info_push because it is now used outside the scope of this file */
rrd_info_t * rrd_info_push(rrd_info_t * info, char *key, rrd_info_type_t type,
rrd_infoval_t value) {
rrd_info_t *next;
next = (rrd_info_t*)malloc(sizeof(*next));
next->next = (rrd_info_t *) 0;
if (info)
info->next = next;
next->type = type;
next->key = key;
switch (type) {
case RD_I_VAL:
next->value.u_val = value.u_val;
break;
case RD_I_CNT:
next->value.u_cnt = value.u_cnt;
break;
case RD_I_INT:
next->value.u_int = value.u_int;
break;
case RD_I_STR:
next->value.u_str = (char*)malloc(sizeof(char) * (strlen(value.u_str) + 1));
strcpy(next->value.u_str, value.u_str);
break;
case RD_I_BLO:
next->value.u_blo.size = value.u_blo.size;
next->value.u_blo.ptr =
(unsigned char *)malloc(sizeof(unsigned char) * value.u_blo.size);
memcpy(next->value.u_blo.ptr, value.u_blo.ptr, value.u_blo.size);
break;
}
return (next);
}
rrd_info_t *rrd_info_r(char *filename, int *ret_p) {
unsigned int i, ii = 0;
rrd_t rrd;
rrd_info_t *data = NULL, *cd;
rrd_infoval_t info;
rrd_file_t *rrd_file;
enum cf_en current_cf;
enum dst_en current_ds;
rrd_init(&rrd);
rrd_file = rrd_open(filename, &rrd, RRD_READONLY, ret_p);
if (rrd_file == NULL)
goto err_free;
info.u_str = filename;
cd = rrd_info_push(NULL, sprintf_alloc("filename"), RD_I_STR, info);
data = cd;
info.u_str = rrd.stat_head->version;
cd = rrd_info_push(cd, sprintf_alloc("rrd_version"), RD_I_STR, info);
info.u_cnt = rrd.stat_head->pdp_step;
cd = rrd_info_push(cd, sprintf_alloc("step"), RD_I_CNT, info);
info.u_cnt = rrd.live_head->last_up;
cd = rrd_info_push(cd, sprintf_alloc("last_update"), RD_I_CNT, info);
info.u_cnt = rrd_get_header_size(&rrd);
cd = rrd_info_push(cd, sprintf_alloc("header_size"), RD_I_CNT, info);
for (i = 0; i < rrd.stat_head->ds_cnt; i++) {
info.u_cnt=i;
cd= rrd_info_push(cd,sprintf_alloc("ds[%s].index",
rrd.ds_def[i].ds_nam),
RD_I_CNT, info);
info.u_str = rrd.ds_def[i].dst;
cd = rrd_info_push(cd, sprintf_alloc("ds[%s].type",
rrd.ds_def[i].ds_nam),
RD_I_STR, info);
current_ds = dst_conv(rrd.ds_def[i].dst);
switch (current_ds) {
case DST_CDEF:
{
char *buffer = NULL;
rpn_compact2str((rpn_cdefds_t *) &(rrd.ds_def[i].par[DS_cdef]),
rrd.ds_def, &buffer);
info.u_str = buffer;
cd = rrd_info_push(cd,
sprintf_alloc("ds[%s].cdef",
rrd.ds_def[i].ds_nam), RD_I_STR,
info);
free(buffer);
}
break;
default:
info.u_cnt = rrd.ds_def[i].par[DS_mrhb_cnt].u_cnt;
cd = rrd_info_push(cd,
sprintf_alloc("ds[%s].minimal_heartbeat",
rrd.ds_def[i].ds_nam), RD_I_CNT,
info);
info.u_val = rrd.ds_def[i].par[DS_min_val].u_val;
cd = rrd_info_push(cd,
sprintf_alloc("ds[%s].min",
rrd.ds_def[i].ds_nam), RD_I_VAL,
info);
info.u_val = rrd.ds_def[i].par[DS_max_val].u_val;
cd = rrd_info_push(cd,
sprintf_alloc("ds[%s].max",
rrd.ds_def[i].ds_nam), RD_I_VAL,
info);
break;
}
info.u_str = rrd.pdp_prep[i].last_ds;
cd = rrd_info_push(cd,
sprintf_alloc("ds[%s].last_ds",
rrd.ds_def[i].ds_nam), RD_I_STR,
info);
info.u_val = rrd.pdp_prep[i].scratch[PDP_val].u_val;
cd = rrd_info_push(cd,
sprintf_alloc("ds[%s].value",
rrd.ds_def[i].ds_nam), RD_I_VAL,
info);
info.u_cnt = rrd.pdp_prep[i].scratch[PDP_unkn_sec_cnt].u_cnt;
cd = rrd_info_push(cd,
sprintf_alloc("ds[%s].unknown_sec",
rrd.ds_def[i].ds_nam), RD_I_CNT,
info);
}
for (i = 0; i < rrd.stat_head->rra_cnt; i++) {
info.u_str = rrd.rra_def[i].cf_nam;
cd = rrd_info_push(cd, sprintf_alloc("rra[%d].cf", i), RD_I_STR,
info);
current_cf = cf_conv(rrd.rra_def[i].cf_nam);
info.u_cnt = rrd.rra_def[i].row_cnt;
cd = rrd_info_push(cd, sprintf_alloc("rra[%d].rows", i), RD_I_CNT,
info);
info.u_cnt = rrd.rra_ptr[i].cur_row;
cd = rrd_info_push(cd, sprintf_alloc("rra[%d].cur_row", i), RD_I_CNT,
info);
info.u_cnt = rrd.rra_def[i].pdp_cnt;
cd = rrd_info_push(cd, sprintf_alloc("rra[%d].pdp_per_row", i),
RD_I_CNT, info);
switch (current_cf) {
case CF_HWPREDICT:
case CF_MHWPREDICT:
info.u_val = rrd.rra_def[i].par[RRA_hw_alpha].u_val;
cd = rrd_info_push(cd, sprintf_alloc("rra[%d].alpha", i),
RD_I_VAL, info);
info.u_val = rrd.rra_def[i].par[RRA_hw_beta].u_val;
cd = rrd_info_push(cd, sprintf_alloc("rra[%d].beta", i), RD_I_VAL,
info);
break;
case CF_SEASONAL:
case CF_DEVSEASONAL:
info.u_val = rrd.rra_def[i].par[RRA_seasonal_gamma].u_val;
cd = rrd_info_push(cd, sprintf_alloc("rra[%d].gamma", i),
RD_I_VAL, info);
if (atoi(rrd.stat_head->version) >= 4) {
info.u_val =
rrd.rra_def[i].par[RRA_seasonal_smoothing_window].u_val;
cd = rrd_info_push(cd,
sprintf_alloc("rra[%d].smoothing_window",
i), RD_I_VAL, info);
}
break;
case CF_FAILURES:
info.u_val = rrd.rra_def[i].par[RRA_delta_pos].u_val;
cd = rrd_info_push(cd, sprintf_alloc("rra[%d].delta_pos", i),
RD_I_VAL, info);
info.u_val = rrd.rra_def[i].par[RRA_delta_neg].u_val;
cd = rrd_info_push(cd, sprintf_alloc("rra[%d].delta_neg", i),
RD_I_VAL, info);
info.u_cnt = rrd.rra_def[i].par[RRA_failure_threshold].u_cnt;
cd = rrd_info_push(cd,
sprintf_alloc("rra[%d].failure_threshold", i),
RD_I_CNT, info);
info.u_cnt = rrd.rra_def[i].par[RRA_window_len].u_cnt;
cd = rrd_info_push(cd, sprintf_alloc("rra[%d].window_length", i),
RD_I_CNT, info);
break;
case CF_DEVPREDICT:
break;
default:
info.u_val = rrd.rra_def[i].par[RRA_cdp_xff_val].u_val;
cd = rrd_info_push(cd, sprintf_alloc("rra[%d].xff", i), RD_I_VAL,
info);
break;
}
for (ii = 0; ii < rrd.stat_head->ds_cnt; ii++) {
switch (current_cf) {
case CF_HWPREDICT:
case CF_MHWPREDICT:
info.u_val =
rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
ii].scratch[CDP_hw_intercept].u_val;
cd = rrd_info_push(cd,
sprintf_alloc
("rra[%d].cdp_prep[%d].intercept", i, ii),
RD_I_VAL, info);
info.u_val =
rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
ii].scratch[CDP_hw_slope].u_val;
cd = rrd_info_push(cd,
sprintf_alloc("rra[%d].cdp_prep[%d].slope",
i, ii), RD_I_VAL, info);
info.u_cnt =
rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
ii].scratch[CDP_null_count].u_cnt;
cd = rrd_info_push(cd,
sprintf_alloc
("rra[%d].cdp_prep[%d].NaN_count", i, ii),
RD_I_CNT, info);
break;
case CF_SEASONAL:
info.u_val =
rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
ii].scratch[CDP_hw_seasonal].u_val;
cd = rrd_info_push(cd,
sprintf_alloc
("rra[%d].cdp_prep[%d].seasonal", i, ii),
RD_I_VAL, info);
break;
case CF_DEVSEASONAL:
info.u_val =
rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
ii].scratch[CDP_seasonal_deviation].u_val;
cd = rrd_info_push(cd,
sprintf_alloc
("rra[%d].cdp_prep[%d].deviation", i, ii),
RD_I_VAL, info);
break;
case CF_DEVPREDICT:
break;
case CF_FAILURES:
{
unsigned short j;
char *violations_array;
char history[MAX_FAILURES_WINDOW_LEN + 1];
violations_array =
(char *) rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
ii].scratch;
for (j = 0; j < rrd.rra_def[i].par[RRA_window_len].u_cnt; ++j)
history[j] = (violations_array[j] == 1) ? '1' : '0';
history[j] = '\0';
info.u_str = history;
cd = rrd_info_push(cd,
sprintf_alloc
("rra[%d].cdp_prep[%d].history", i, ii),
RD_I_STR, info);
}
break;
default:
info.u_val =
rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
ii].scratch[CDP_val].u_val;
cd = rrd_info_push(cd,
sprintf_alloc("rra[%d].cdp_prep[%d].value",
i, ii), RD_I_VAL, info);
info.u_cnt =
rrd.cdp_prep[i * rrd.stat_head->ds_cnt +
ii].scratch[CDP_unkn_pdp_cnt].u_cnt;
cd = rrd_info_push(cd,
sprintf_alloc
("rra[%d].cdp_prep[%d].unknown_datapoints",
i, ii), RD_I_CNT, info);
break;
}
}
}
rrd_close(rrd_file);
err_free:
rrd_free(&rrd);
return (data);
}
void rrd_info_print(rrd_info_t * data) {
while (data) {
printf("%s = ", data->key);
switch (data->type) {
case RD_I_VAL:
if (isnan(data->value.u_val))
printf("NaN\n");
else
printf("%0.10e\n", data->value.u_val);
break;
case RD_I_CNT:
printf("%lu\n", data->value.u_cnt);
break;
case RD_I_INT:
printf("%d\n", data->value.u_int);
break;
case RD_I_STR:
printf("\"%s\"\n", data->value.u_str);
break;
case RD_I_BLO:
printf("BLOB_SIZE:%lu\n", data->value.u_blo.size);
fwrite(data->value.u_blo.ptr, data->value.u_blo.size, 1, stdout);
break;
}
data = data->next;
}
}
void rrd_info_free(rrd_info_t * data) {
rrd_info_t *save;
while (data) {
save = data;
if (data->key) {
if (data->type == RD_I_STR) {
free(data->value.u_str);
}
if (data->type == RD_I_BLO) {
free(data->value.u_blo.ptr);
}
free(data->key);
}
data = data->next;
free(save);
}
}