From bbe01d0bd2d4413c2de103af3ea98fcaa7e0cc5e Mon Sep 17 00:00:00 2001
From: Steffen Vogel <post@steffenvogel.de>
Date: Wed, 28 Aug 2019 16:56:22 +0200
Subject: [PATCH] stats: fix state assertions in stats hook

---
 lib/hooks/stats.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/hooks/stats.cpp b/lib/hooks/stats.cpp
index b6bf63240..94696e402 100644
--- a/lib/hooks/stats.cpp
+++ b/lib/hooks/stats.cpp
@@ -232,12 +232,16 @@ public:
 
 	virtual void prepare()
 	{
+		assert(state == State::CHECKED);
+
 		stats = std::make_shared<villas::Stats>(buckets, warmup);
 
 		/* Register statistic object to path.
 		*
 		* This allows the path code to update statistics. */
 		node->stats = stats;
+
+		state = State::PREPARED;
 	}
 };