1 files changed, 30 insertions, 0 deletions
diff --git a/database/rrdsetvar.h b/database/rrdsetvar.h
new file mode 100644
index 00000000..0c2e6671
--- /dev/null
+++ b/database/rrdsetvar.h
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef NETDATA_RRDSETVAR_H
+#define NETDATA_RRDSETVAR_H 1
+
+#include "rrd.h"
+
+// variables linked to charts
+// We link variables to point to the values that are already
+// calculated / processed by the normal data collection process
+// This means, there will be no speed penalty for using
+// these variables
+
+void rrdsetvar_index_init(RRDSET *st);
+void rrdsetvar_index_destroy(RRDSET *st);
+void rrdsetvar_release_and_delete_all(RRDSET *st);
+
+#define rrdsetvar_custom_chart_variable_release(st, rsa) rrdsetvar_release((st)->rrdsetvar_root_index, rsa)
+void rrdsetvar_release(DICTIONARY *dict, const RRDSETVAR_ACQUIRED *rsa);
+
+const RRDSETVAR_ACQUIRED *rrdsetvar_custom_chart_variable_add_and_acquire(RRDSET *st, const char *name);
+void rrdsetvar_custom_chart_variable_set(RRDSET *st, const RRDSETVAR_ACQUIRED *rsa, NETDATA_DOUBLE value);
+
+void rrdsetvar_rename_all(RRDSET *st);
+const RRDSETVAR_ACQUIRED *rrdsetvar_add_and_acquire(RRDSET *st, const char *name, RRDVAR_TYPE type, void *value, RRDVAR_FLAGS flags);
+void rrdsetvar_add_and_leave_released(RRDSET *st, const char *name, RRDVAR_TYPE type, void *value, RRDVAR_FLAGS flags);
+
+void rrdsetvar_print_to_streaming_custom_chart_variables(RRDSET *st, BUFFER *wb);
+
+#endif //NETDATA_RRDSETVAR_H