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// SPDX-License-Identifier: GPL-3.0-or-later
#include "claim_id.h"
static struct {
SPINLOCK spinlock;
ND_UUID claim_uuid;
ND_UUID claim_uuid_saved;
} claim = {
.spinlock = NETDATA_SPINLOCK_INITIALIZER,
};
void claim_id_clear_previous_working(void) {
spinlock_lock(&claim.spinlock);
claim.claim_uuid_saved = UUID_ZERO;
spinlock_unlock(&claim.spinlock);
}
void claim_id_set(ND_UUID new_claim_id) {
spinlock_lock(&claim.spinlock);
if(!UUIDiszero(claim.claim_uuid)) {
if(aclk_online())
claim.claim_uuid_saved = claim.claim_uuid;
claim.claim_uuid = UUID_ZERO;
}
claim.claim_uuid = new_claim_id;
if(localhost)
localhost->aclk.claim_id_of_origin = claim.claim_uuid;
spinlock_unlock(&claim.spinlock);
}
// returns true when the supplied str is a valid UUID.
// giving NULL, an empty string, or "NULL" is valid.
bool claim_id_set_str(const char *claim_id_str) {
bool rc;
ND_UUID uuid;
if(!claim_id_str || !*claim_id_str || strcmp(claim_id_str, "NULL") == 0) {
uuid = UUID_ZERO,
rc = true;
}
else
rc = uuid_parse(claim_id_str, uuid.uuid) == 0;
claim_id_set(uuid);
return rc;
}
ND_UUID claim_id_get_uuid(void) {
static ND_UUID uuid;
spinlock_lock(&claim.spinlock);
uuid = claim.claim_uuid;
spinlock_unlock(&claim.spinlock);
return uuid;
}
void claim_id_get_str(char str[UUID_STR_LEN]) {
ND_UUID uuid = claim_id_get_uuid();
if(UUIDiszero(uuid))
memset(str, 0, UUID_STR_LEN);
else
uuid_unparse_lower(uuid.uuid, str);
}
const char *claim_id_get_str_mallocz(void) {
char *str = mallocz(UUID_STR_LEN);
claim_id_get_str(str);
return str;
}
CLAIM_ID claim_id_get(void) {
CLAIM_ID ret = {
.uuid = claim_id_get_uuid(),
};
if(claim_id_is_set(ret))
uuid_unparse_lower(ret.uuid.uuid, ret.str);
else
ret.str[0] = '\0';
return ret;
}
CLAIM_ID claim_id_get_last_working(void) {
CLAIM_ID ret = { 0 };
spinlock_lock(&claim.spinlock);
ret.uuid = claim.claim_uuid_saved;
spinlock_unlock(&claim.spinlock);
if(claim_id_is_set(ret))
uuid_unparse_lower(ret.uuid.uuid, ret.str);
else
ret.str[0] = '\0';
return ret;
}
CLAIM_ID rrdhost_claim_id_get(RRDHOST *host) {
CLAIM_ID ret = { 0 };
if(host == localhost) {
ret.uuid = claim_id_get_uuid();
if(UUIDiszero(ret.uuid))
ret.uuid = host->aclk.claim_id_of_parent;
}
else {
if (!UUIDiszero(host->aclk.claim_id_of_origin))
ret.uuid = host->aclk.claim_id_of_origin;
else
ret.uuid = host->aclk.claim_id_of_parent;
}
if(claim_id_is_set(ret))
uuid_unparse_lower(ret.uuid.uuid, ret.str);
return ret;
}
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