src/daemon/unit.h: Reference OpenTelemetry docs.

Co-authored-by: Eero Tamminen <eero.t.tamminen@intel.com>

diff --git a/src/daemon/unit.h b/src/daemon/unit.h
index 0afe324f406a30f0737bab0bd80176a38349cc7e..93f522a75e3e7f13b2a75fe195188f937c700608 100644 (file)
--- a/src/daemon/unit.h
+++ b/src/daemon/unit.h
@@ -32,9 +32,11 @@
 /* default_unit tries to guess a metric family's unit.
  *
  * If fam->unit is not NULL, that pointer is returned. Otherwise, the function
- * tries to heuristically determine a unit for th metric family. If successful,
- * a new string is allocated on the heap and returned. This string must be freed
- * using free(). If unsuccessful, NULL is returned.
+ * tries to heuristically determine a unit for the metric family, based on known
+ * OpenTelemetry metric names:
+ * https://opentelemetry.io/docs/specs/semconv/general/metrics/#instrument-naming
+ * If successful, a new string is allocated on the heap and returned. This string must
+ * be freed using free(). If unsuccessful, NULL is returned.
  *
  * This is designed to be used like this:
  *   fam->unit = default_unit(fam);