Initial code commit with organized dependencies

4 files changed, 154 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
diff --git a/Simulator/include/simulation/history/MachineSnapshot.h b/Simulator/include/simulation/history/MachineSnapshot.h
new file mode 100644
index 00000000..49ce1313
--- /dev/null
+++ b/Simulator/include/simulation/history/MachineSnapshot.h
@@ -0,0 +1,17 @@
+#pragma once
+
+namespace Simulation {
+	/*
+		POD class that represents the state of a machine.
+	*/
+	class MachineSnapshot {
+	public:
+		MachineSnapshot(int id, int currentWorkload, float temp, float load, uint32_t mem) : id(id), currentWorkload(currentWorkload), temperature(temp), loadFraction(load), usedMemory(mem) {}
+
+		int id;
+		int currentWorkload;
+		float temperature;
+		float loadFraction;
+		uint32_t usedMemory;
+	};
+}
\ No newline at end of file
diff --git a/Simulator/include/simulation/history/SimulationHistory.h b/Simulator/include/simulation/history/SimulationHistory.h
new file mode 100644
index 00000000..f43968b7
--- /dev/null
+++ b/Simulator/include/simulation/history/SimulationHistory.h
@@ -0,0 +1,81 @@
+#pragma once
+#include "History.h"
+#include "WorkloadSnapshot.h"
+#include "MachineSnapshot.h"
+
+#include <unordered_map>
+
+namespace Simulation
+{
+	using WorkloadHistory = History<WorkloadSnapshot>;
+	using MachineHistory = History<MachineSnapshot>;
+	using HistoryRef = std::tuple<std::reference_wrapper<WorkloadHistory>, std::reference_wrapper<MachineHistory>>;
+
+	class SimulationHistory
+	{
+	public:
+		/*
+			Adds the workload snapshot at the given tick.
+		*/
+		void addSnapshot(uint32_t tick, WorkloadSnapshot snapshots)
+		{
+			workloadHistory.addSnapshotAtTick(tick, snapshots);
+		}
+		
+		/*
+			Adds the machine snapshot at the given tick.
+		*/
+		void addSnapshot(uint32_t tick, MachineSnapshot snapshots)
+		{
+			machineHistory.addSnapshotAtTick(tick, snapshots);
+		}
+
+		/*
+			Returns the equal_range of the workload snapshots at the given tick.
+		*/
+		auto getWorkloadSnapshot(uint32_t tick)
+		{
+			return workloadHistory.snapshotsAtTick(tick);
+		}
+
+		/*
+			Returns the equal_range of the machine snapshots at the given tick.
+		*/
+		auto getMachineSnapshot(uint32_t tick)
+		{
+			return machineHistory.snapshotsAtTick(tick);
+		}
+
+		/*
+			Returns a const tuple ref of the entire cached history of machines and workloads.
+		*/
+		const HistoryRef getHistory()
+		{
+			return std::make_tuple(
+				std::ref(workloadHistory),
+				std::ref(machineHistory)
+			);
+		}
+
+		/*
+			Clears the cache of history.
+		*/
+		void clearHistory()
+		{
+			workloadHistory.clear();
+			machineHistory.clear();
+		}
+
+		/*
+			Returns the number of snapshots that are in the history cache.
+		*/
+		size_t historySize()
+		{
+			return workloadHistory.size();
+		}
+
+	private:
+		WorkloadHistory workloadHistory;
+		MachineHistory machineHistory;
+	};
+}
\ No newline at end of file
diff --git a/Simulator/include/simulation/history/WorkloadSnapshot.h b/Simulator/include/simulation/history/WorkloadSnapshot.h
new file mode 100644
index 00000000..1e7e2695
--- /dev/null
+++ b/Simulator/include/simulation/history/WorkloadSnapshot.h
@@ -0,0 +1,13 @@
+#pragma once
+
+namespace Simulation
+{
+	class WorkloadSnapshot
+	{
+	public:
+		WorkloadSnapshot(uint32_t id, uint32_t flopsDone) : flopsDone(flopsDone), id(id) {}
+
+		uint32_t flopsDone;
+		uint32_t id;
+	};
+}
\ No newline at end of file