From d663f702c0e4fa562783504a483dce8f362d628e Mon Sep 17 00:00:00 2001
From: Romain Forlot <romain.forlot@iot.bzh>
Date: Tue, 12 Sep 2017 00:29:28 +0200
Subject: Progression on config parsing.

Change-Id: Idd8d8987ccabef381f6d79c1d508930a2d4bae3c
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>
---
 signal-composer-binding/observer.hpp | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 signal-composer-binding/observer.hpp

(limited to 'signal-composer-binding/observer.hpp')

diff --git a/signal-composer-binding/observer.hpp b/signal-composer-binding/observer.hpp
new file mode 100644
index 0000000..e4129c6
--- /dev/null
+++ b/signal-composer-binding/observer.hpp
@@ -0,0 +1,30 @@
+#include <vector>
+
+class Observer
+{
+public:
+	virtual void update(double timestamp, double value) = 0;
+};
+
+class Subject
+{
+	double timestamp_;
+	double value_;
+	std::vector<Observer*> m_views;
+public:
+	void attach(Observer *obs)
+	{
+		m_views.push_back(obs);
+	}
+	void set_val(double timestamp, double value)
+	{
+		timestamp_ = timestamp;
+		value_ = value;
+		notify();
+	}
+	void notify()
+	{
+		for (int i = 0; i < m_views.size(); ++i)
+		  m_views[i]->update(timestamp_, value_);
+	}
+};
-- 
cgit 1.2.3-korg