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// SPDX-License-Identifier: GPL-3.0-or-later
#include "daemon/common.h"
#include "registry_internals.h"
// ----------------------------------------------------------------------------
// MACHINE
REGISTRY_MACHINE *registry_machine_find(const char *machine_guid) {
netdata_log_debug(D_REGISTRY, "REGISTRY: registry_machine_find('%s')", machine_guid);
return dictionary_get(registry.machines, machine_guid);
}
REGISTRY_MACHINE_URL *registry_machine_url_find(REGISTRY_MACHINE *m, STRING *url) {
REGISTRY_MACHINE_URL *mu;
for(mu = m->machine_urls; mu ;mu = mu->next)
if(mu->url == url)
break;
return mu;
}
void registry_machine_url_unlink_from_machine_and_free(REGISTRY_MACHINE *m, REGISTRY_MACHINE_URL *mu) {
DOUBLE_LINKED_LIST_REMOVE_ITEM_UNSAFE(m->machine_urls, mu, prev, next);
string_freez(mu->url);
aral_freez(registry.machine_urls_aral, mu);
}
REGISTRY_MACHINE_URL *registry_machine_url_allocate(REGISTRY_MACHINE *m, STRING *u, time_t when) {
netdata_log_debug(D_REGISTRY, "REGISTRY: registry_machine_url_allocate('%s', '%s'): allocating %zu bytes", m->guid, string2str(u), sizeof(REGISTRY_MACHINE_URL));
REGISTRY_MACHINE_URL *mu = aral_mallocz(registry.machine_urls_aral);
mu->first_t = mu->last_t = (uint32_t)when;
mu->usages = 1;
mu->url = string_dup(u);
mu->flags = REGISTRY_URL_FLAGS_DEFAULT;
netdata_log_debug(D_REGISTRY, "REGISTRY: registry_machine_url_allocate('%s', '%s'): indexing URL in machine", m->guid, string2str(u));
DOUBLE_LINKED_LIST_PREPEND_ITEM_UNSAFE(m->machine_urls, mu, prev, next);
return mu;
}
REGISTRY_MACHINE *registry_machine_allocate(const char *machine_guid, time_t when) {
netdata_log_debug(D_REGISTRY, "REGISTRY: registry_machine_allocate('%s'): creating new machine, sizeof(MACHINE)=%zu", machine_guid, sizeof(REGISTRY_MACHINE));
REGISTRY_MACHINE *m = aral_mallocz(registry.machines_aral);
strncpyz(m->guid, machine_guid, GUID_LEN);
m->machine_urls = NULL;
m->first_t = m->last_t = (uint32_t)when;
m->usages = 0;
m->links = 0;
registry.machines_count++;
dictionary_set(registry.machines, m->guid, m, sizeof(REGISTRY_MACHINE));
return m;
}
// 1. validate machine GUID
// 2. if it is valid, find it or create it and return it
// 3. if it is not valid, return NULL
REGISTRY_MACHINE *registry_machine_find_or_create(const char *machine_guid, time_t when, bool is_dummy __maybe_unused) {
REGISTRY_MACHINE *m = NULL;
if(likely(machine_guid && *machine_guid)) {
// validate it is a GUID
char buf[GUID_LEN + 1];
if(unlikely(regenerate_guid(machine_guid, buf) == -1))
netdata_log_info("REGISTRY: machine guid '%s' is not a valid guid. Ignoring it.", machine_guid);
else {
machine_guid = buf;
m = registry_machine_find(machine_guid);
if(!m) m = registry_machine_allocate(machine_guid, when);
}
}
return m;
}
// ----------------------------------------------------------------------------
// LINKING OF OBJECTS
REGISTRY_MACHINE_URL *registry_machine_link_to_url(REGISTRY_MACHINE *m, STRING *url, time_t when) {
netdata_log_debug(D_REGISTRY, "REGISTRY: registry_machine_link_to_url('%s', '%s'): searching for URL in machine", m->guid, string2str(url));
REGISTRY_MACHINE_URL *mu = registry_machine_url_find(m, url);
if(!mu) {
netdata_log_debug(D_REGISTRY, "REGISTRY: registry_machine_link_to_url('%s', '%s'): not found", m->guid, string2str(url));
mu = registry_machine_url_allocate(m, url, when);
registry.machines_urls_count++;
}
else {
netdata_log_debug(D_REGISTRY, "REGISTRY: registry_machine_link_to_url('%s', '%s'): found", m->guid, string2str(url));
mu->usages++;
if(likely(mu->last_t < (uint32_t)when)) mu->last_t = (uint32_t)when;
}
m->usages++;
if(likely(m->last_t < (uint32_t)when)) m->last_t = (uint32_t)when;
if(mu->flags & REGISTRY_URL_FLAGS_EXPIRED) {
netdata_log_debug(D_REGISTRY, "REGISTRY: registry_machine_link_to_url('%s', '%s'): accessing an expired URL.", m->guid, string2str(url));
mu->flags &= ~REGISTRY_URL_FLAGS_EXPIRED;
}
return mu;
}
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