Viewing file:  rrdfamily.c (2.22 KB) -rw-r--r--
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// SPDX-License-Identifier: GPL-3.0-or-later
#define NETDATA_RRD_INTERNALS
#include "rrd.h"
// ----------------------------------------------------------------------------
// RRDFAMILY index
int rrdfamily_compare(void *a, void *b) {
if(((RRDFAMILY *)a)->hash_family < ((RRDFAMILY *)b)->hash_family) return -1;
else if(((RRDFAMILY *)a)->hash_family > ((RRDFAMILY *)b)->hash_family) return 1;
else return strcmp(((RRDFAMILY *)a)->family, ((RRDFAMILY *)b)->family);
}
#define rrdfamily_index_add(host, rc) (RRDFAMILY *)avl_insert_lock(&((host)->rrdfamily_root_index), (avl_t *)(rc))
#define rrdfamily_index_del(host, rc) (RRDFAMILY *)avl_remove_lock(&((host)->rrdfamily_root_index), (avl_t *)(rc))
static RRDFAMILY *rrdfamily_index_find(RRDHOST *host, const char *id, uint32_t hash) {
RRDFAMILY tmp;
tmp.family = id;
tmp.hash_family = (hash)?hash:simple_hash(tmp.family);
return (RRDFAMILY *)avl_search_lock(&(host->rrdfamily_root_index), (avl_t *) &tmp);
}
RRDFAMILY *rrdfamily_create(RRDHOST *host, const char *id) {
RRDFAMILY *rc = rrdfamily_index_find(host, id, 0);
if(!rc) {
rc = callocz(1, sizeof(RRDFAMILY));
rc->family = strdupz(id);
rc->hash_family = simple_hash(rc->family);
// initialize the variables index
avl_init_lock(&rc->rrdvar_root_index, rrdvar_compare);
RRDFAMILY *ret = rrdfamily_index_add(host, rc);
if(ret != rc)
error("RRDFAMILY: INTERNAL ERROR: Expected to INSERT RRDFAMILY '%s' into index, but inserted '%s'.", rc->family, (ret)?ret->family:"NONE");
}
rc->use_count++;
return rc;
}
void rrdfamily_free(RRDHOST *host, RRDFAMILY *rc) {
rc->use_count--;
if(!rc->use_count) {
RRDFAMILY *ret = rrdfamily_index_del(host, rc);
if(ret != rc)
error("RRDFAMILY: INTERNAL ERROR: Expected to DELETE RRDFAMILY '%s' from index, but deleted '%s'.", rc->family, (ret)?ret->family:"NONE");
else {
debug(D_RRD_CALLS, "RRDFAMILY: Cleaning up remaining family variables for host '%s', family '%s'", host->hostname, rc->family);
rrdvar_free_remaining_variables(host, &rc->rrdvar_root_index);
freez((void *) rc->family);
freez(rc);
}
}
}
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