1 files changed, 11 insertions, 3 deletions
diff --git a/internal/source/source.go b/internal/source/source.go
index be7aecd..4bb0784 100644
--- a/internal/source/source.go
+++ b/internal/source/source.go
@@ -1,10 +1,19 @@
 package source
 
+// Source specifies the origin of either the current process (dtail is a client
+// process, dserver is a server process) or the source code package (e.g.
+// dserver server side code or dtail client side code). Notice that dtail client
+// may also executes server code directly (e.g. via serverless mode) and that
+// the dserver may also executes client code (e.g. via scheduled server side
+// mapreduce queries).
 type Source int
 
 const (
-	Client      Source = iota
-	Server      Source = iota
+	// Client process or source code package.
+	Client Source = iota
+	// Server process or source code package.
+	Server Source = iota
+	// HealthCheck process or client source code package.
 	HealthCheck Source = iota
 )
 
@@ -17,6 +26,5 @@ func (s Source) String() string {
 	case HealthCheck:
 		return "HEALTHCHECK"
 	}
-
 	panic("Unknown source type")
 }