1 files changed, 77 insertions, 0 deletions
diff --git a/database/rrdvar.h b/database/rrdvar.h
new file mode 100644
index 00000000..3b6e9cb9
--- /dev/null
+++ b/database/rrdvar.h
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef NETDATA_RRDVAR_H
+#define NETDATA_RRDVAR_H 1
+
+#include "libnetdata/libnetdata.h"
+
+typedef enum rrdvar_type {
+    RRDVAR_TYPE_CALCULATED              = 1,
+    RRDVAR_TYPE_TIME_T                  = 2,
+    RRDVAR_TYPE_COLLECTED               = 3,
+    RRDVAR_TYPE_TOTAL                   = 4,
+    RRDVAR_TYPE_INT                     = 5
+
+    // this is 8 bit
+    // to increase it you have to set change the bitfield in
+    // rrdvar, rrdsetvar, rrddimvar
+} RRDVAR_TYPE;
+
+typedef enum rrdvar_options {
+    RRDVAR_FLAG_NONE                        = 0,
+    RRDVAR_FLAG_ALLOCATED                   = (1 << 0), // the value ptr is allocated (not a reference)
+    RRDVAR_FLAG_CUSTOM_HOST_VAR             = (1 << 1), // this is a custom host variable, not associated with a dimension
+    RRDVAR_FLAG_CUSTOM_CHART_VAR            = (1 << 2), // this is a custom chart variable, not associated with a dimension
+    RRDVAR_FLAG_RRDCALC_LOCAL_VAR           = (1 << 3), // this is a an alarm variable, attached to a chart
+    RRDVAR_FLAG_RRDCALC_FAMILY_VAR          = (1 << 4), // this is a an alarm variable, attached to a family
+    RRDVAR_FLAG_RRDCALC_HOST_CHARTID_VAR    = (1 << 5), // this is a an alarm variable, attached to the host, using the chart id
+    RRDVAR_FLAG_RRDCALC_HOST_CHARTNAME_VAR  = (1 << 6), // this is a an alarm variable, attached to the host, using the chart name
+    RRDVAR_FLAG_CONFIG_VAR                  = (1 << 7), // this is a an alarm variable, read from alarm config
+
+    // this is 24 bit
+    // to increase it you have to set change the bitfield in
+    // rrdvar, rrdsetvar, rrddimvar
+} RRDVAR_FLAGS;
+
+#define RRDVAR_OPTIONS_REMOVED_ON_NEW_OBJECTS \
+    (RRDVAR_FLAG_ALLOCATED)
+
+#define RRDVAR_OPTIONS_REMOVED_WHEN_PROPAGATING_TO_RRDVAR \
+    (RRDVAR_FLAG_ALLOCATED)
+
+#define RRDVAR_MAX_LENGTH 1024
+
+int rrdvar_fix_name(char *variable);
+
+#include "rrd.h"
+
+STRING *rrdvar_name_to_string(const char *name);
+
+const RRDVAR_ACQUIRED *rrdvar_custom_host_variable_add_and_acquire(RRDHOST *host, const char *name);
+void rrdvar_add(const char *scope __maybe_unused, DICTIONARY *dict, STRING *name, RRDVAR_TYPE type, RRDVAR_FLAGS options, void *value);
+void rrdvar_custom_host_variable_set(RRDHOST *host, const RRDVAR_ACQUIRED *rva, NETDATA_DOUBLE value);
+
+int rrdvar_walkthrough_read(DICTIONARY *dict, int (*callback)(const DICTIONARY_ITEM *item, void *rrdvar, void *data), void *data);
+
+#define rrdvar_custom_host_variable_release(host, rva) rrdvar_release((host)->rrdvars, rva)
+void rrdvar_release(DICTIONARY *dict, const RRDVAR_ACQUIRED *rva);
+
+NETDATA_DOUBLE rrdvar2number(const RRDVAR_ACQUIRED *rva);
+
+const RRDVAR_ACQUIRED *rrdvar_add_and_acquire(const char *scope, DICTIONARY *dict, STRING *name, RRDVAR_TYPE type, RRDVAR_FLAGS options, void *value);
+void rrdvar_release_and_del(DICTIONARY *dict, const RRDVAR_ACQUIRED *rva);
+
+DICTIONARY *rrdvariables_create(void);
+DICTIONARY *health_rrdvariables_create(void);
+void rrdvariables_destroy(DICTIONARY *dict);
+
+void rrdvar_store_for_chart(RRDHOST *host, RRDSET *st);
+int health_variable_check(DICTIONARY *dict, RRDSET *st, RRDDIM *rd);
+
+void rrdvar_delete_all(DICTIONARY *dict);
+
+const char *rrdvar_name(const RRDVAR_ACQUIRED *rva);
+RRDVAR_FLAGS rrdvar_flags(const RRDVAR_ACQUIRED *rva);
+RRDVAR_TYPE rrdvar_type(const RRDVAR_ACQUIRED *rva);
+
+#endif //NETDATA_RRDVAR_H