IVGCVSW-3411 Add the Counter Values array and accessor methods

Signed-off-by: FinnWilliamsArm <Finn.Williams@arm.com>
Change-Id: I4fa2428a83b93cbe58b821344206e2f7ce9e37e7
diff --git a/src/profiling/CounterValues.hpp b/src/profiling/CounterValues.hpp
new file mode 100644
index 0000000..75ecad9
--- /dev/null
+++ b/src/profiling/CounterValues.hpp
@@ -0,0 +1,38 @@
+//
+// Copyright © 2019 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+#pragma once
+
+#include <cstdint>
+
+namespace armnn
+{
+
+namespace profiling
+{
+
+class IReadCounterValues
+{
+public:
+    virtual uint16_t GetCounterCount() const = 0;
+    virtual void GetCounterValue(uint16_t index, uint32_t& value) const = 0;
+    virtual ~IReadCounterValues() {}
+};
+
+class IWriteCounterValues : public IReadCounterValues
+{
+public:
+    virtual void SetCounterValue(uint16_t index, uint32_t value) = 0;
+    virtual void AddCounterValue(uint16_t index, uint32_t value) = 0;
+    virtual void SubtractCounterValue(uint16_t index, uint32_t value) = 0;
+    virtual void IncrementCounterValue(uint16_t index) = 0;
+    virtual void DecrementCounterValue(uint16_t index) = 0;
+    virtual ~IWriteCounterValues() {}
+};
+
+} // namespace profiling
+
+} // namespace armnn
+
+