1 files changed, 43 insertions, 0 deletions
diff --git a/registry/registry_machine.h b/registry/registry_machine.h
new file mode 100644
index 000000000..77ab5aaf5
--- /dev/null
+++ b/registry/registry_machine.h
@@ -0,0 +1,43 @@
+// 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 {
+    REGISTRY_URL *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
+};
+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
+
+    DICTIONARY *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;
+
+extern REGISTRY_MACHINE *registry_machine_find(const char *machine_guid);
+extern REGISTRY_MACHINE_URL *registry_machine_url_allocate(REGISTRY_MACHINE *m, REGISTRY_URL *u, time_t when);
+extern REGISTRY_MACHINE *registry_machine_allocate(const char *machine_guid, time_t when);
+extern REGISTRY_MACHINE *registry_machine_get(const char *machine_guid, time_t when);
+extern REGISTRY_MACHINE_URL *registry_machine_link_to_url(REGISTRY_MACHINE *m, REGISTRY_URL *u, time_t when);
+
+#endif //NETDATA_REGISTRY_MACHINE_H