From ec93fdbbdea328816cbc64aa8fd687840be6cc39 Mon Sep 17 00:00:00 2001
From: Jedrzej Stuczynski <jedrzej.stuczynski@gmail.com>
Date: Fri, 28 Feb 2020 13:03:29 +0000
Subject: [PATCH] Extra comments + derived traits

---
 mixnode/src/node/metrics.rs              | 2 ++
 sfw-provider/src/provider/storage/mod.rs | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/mixnode/src/node/metrics.rs b/mixnode/src/node/metrics.rs
index 3bb5b97c82..cf8e52e942 100644
--- a/mixnode/src/node/metrics.rs
+++ b/mixnode/src/node/metrics.rs
@@ -17,6 +17,8 @@ pub(crate) enum MetricEvent {
 }
 
 #[derive(Debug, Clone)]
+// Note: you should NEVER create more than a single instance of this using 'new()'.
+// You should always use .clone() to create additional instances
 struct MixMetrics {
     inner: Arc<Mutex<MixMetricsInner>>,
 }
diff --git a/sfw-provider/src/provider/storage/mod.rs b/sfw-provider/src/provider/storage/mod.rs
index 6b2725a25d..458e4e1061 100644
--- a/sfw-provider/src/provider/storage/mod.rs
+++ b/sfw-provider/src/provider/storage/mod.rs
@@ -50,6 +50,9 @@ impl StoreData {
 }
 
 // TODO: replace with proper database...
+// Note: you should NEVER create more than a single instance of this using 'new()'.
+// You should always use .clone() to create additional instances
+#[derive(Clone, Debug)]
 pub struct ClientStorage {
     inner: Arc<Mutex<ClientStorageInner>>,
 }