1 files changed, 48 insertions, 0 deletions
diff --git a/src/registry/registry_machine.h b/src/registry/registry_machine.h
new file mode 100644
index 000000000..4e8a407fe
--- /dev/null
+++ b/src/registry/registry_machine.h
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef NETDATA_REGISTRY_MACHINE_H
+#define NETDATA_REGISTRY_MACHINE_H 1
+
+#include "registry_internals.h"
+
+// ----------------------------------------------------------------------------
+// MACHINE structures
+
+// For each MACHINE-URL pair we keep this
+struct registry_machine_url {
+    STRING *url;                // de-duplicated URL
+
+    uint8_t flags;
+
+    uint32_t first_t;           // the first time we saw this
+    uint32_t last_t;            // the last time we saw this
+    uint32_t usages;            // how many times this has been accessed
+
+    struct registry_machine_url *prev, *next;
+};
+typedef struct registry_machine_url REGISTRY_MACHINE_URL;
+
+// A machine
+struct registry_machine {
+    char guid[GUID_LEN + 1];    // the GUID
+
+    uint32_t links;             // the number of REGISTRY_PERSON_URL linked to this machine
+
+    REGISTRY_MACHINE_URL *machine_urls;   // MACHINE_URL *
+
+    uint32_t first_t;           // the first time we saw this
+    uint32_t last_t;            // the last time we saw this
+    uint32_t usages;            // how many times this has been accessed
+};
+typedef struct registry_machine REGISTRY_MACHINE;
+
+REGISTRY_MACHINE *registry_machine_find(const char *machine_guid);
+REGISTRY_MACHINE_URL *registry_machine_url_allocate(REGISTRY_MACHINE *m, STRING *u, time_t when);
+REGISTRY_MACHINE *registry_machine_allocate(const char *machine_guid, time_t when);
+REGISTRY_MACHINE *registry_machine_find_or_create(const char *machine_guid, time_t when, bool is_dummy);
+REGISTRY_MACHINE_URL *registry_machine_link_to_url(REGISTRY_MACHINE *m, STRING *url, time_t when);
+
+REGISTRY_MACHINE_URL *registry_machine_url_find(REGISTRY_MACHINE *m, STRING *url);
+void registry_machine_url_unlink_from_machine_and_free(REGISTRY_MACHINE *m, REGISTRY_MACHINE_URL *mu);
+
+#endif //NETDATA_REGISTRY_MACHINE_H