From c69cb8cc094cc916adbc516b09e944cd3d137c01 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 13:08:07 +0200 Subject: Adding upstream version 1.29.3. Signed-off-by: Daniel Baumann --- database/rrdfamily.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 database/rrdfamily.c (limited to 'database/rrdfamily.c') diff --git a/database/rrdfamily.c b/database/rrdfamily.c new file mode 100644 index 0000000..f75f0ad --- /dev/null +++ b/database/rrdfamily.c @@ -0,0 +1,61 @@ +// 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 *)(rc)) +#define rrdfamily_index_del(host, rc) (RRDFAMILY *)avl_remove_lock(&((host)->rrdfamily_root_index), (avl *)(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 *) &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); + } + } +} + -- cgit v1.2.3