1 files changed, 43 insertions, 0 deletions
diff --git a/Simulator/include/simulation/history/History.h b/Simulator/include/simulation/history/History.h
new file mode 100644
index 00000000..f1d826eb
--- /dev/null
+++ b/Simulator/include/simulation/history/History.h
@@ -0,0 +1,43 @@
+#pragma once
+#include <stdint.h>
+#include <map>
+
+namespace Simulation {
+	template<typename Type>
+	class History {
+	public:
+		void addSnapshotAtTick(uint32_t tick, Type snapshot)
+		{
+			history.insert(std::make_pair(tick, snapshot));
+		}
+
+		const auto& snapshotsAtTick(uint32_t tick)
+		{
+			return history.equal_range(tick);
+		}
+
+		typename std::unordered_map<uint32_t, Type>::const_iterator begin()
+		{
+			return history.begin();
+		}
+
+		typename std::unordered_map<uint32_t, Type>::const_iterator end()
+		{
+			return history.end();
+		}
+
+		void clear()
+		{
+			history.clear();
+		}
+
+		size_t size()
+		{
+			return history.size();
+		}
+
+	private:
+		// Maps ticks to histories of workloads
+		std::unordered_multimap<uint32_t, Type> history;
+	};
+}
+\ No newline at end of file