IVGCVSW-3431 Create Profiling Service State Machine

Change-Id: I30ae52d38181a91ce642e24919ad788902e42eb4
Signed-off-by: Nikhil Raj <nikhil.raj@arm.com>

1 files changed, 69 insertions, 0 deletions

diff --git a/src/profiling/ProfilingStateMachine.hpp b/src/profiling/ProfilingStateMachine.hpp
new file mode 100644
index 0000000000..66f8b2cd17
--- /dev/null
+++ b/src/profiling/ProfilingStateMachine.hpp
@@ -0,0 +1,69 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+#pragma once
+
+#include <atomic>
+
+namespace armnn
+{
+
+namespace  profiling
+{
+
+enum class ProfilingState
+{
+    Uninitialised,
+    NotConnected,
+    WaitingForAck,
+    Active
+};
+
+class ProfilingStateMachine
+{
+public:
+    ProfilingStateMachine(): m_State(ProfilingState::Uninitialised) {};
+    ProfilingStateMachine(ProfilingState state): m_State(state) {};
+
+    ProfilingState GetCurrentState() const;
+    void TransitionToState(ProfilingState newState);
+
+    bool IsOneOfStates(ProfilingState state1)
+    {
+        return false;
+    }
+
+    template<typename T, typename... Args >
+    bool IsOneOfStates(T state1, T state2, Args... args)
+    {
+        if (state1 == state2)
+        {
+            return true;
+        }
+        else
+        {
+            return IsOneOfStates(state1, args...);
+        }
+    }
+
+private:
+    std::atomic<ProfilingState> m_State;
+};
+
+constexpr char const* GetProfilingStateName(ProfilingState state)
+{
+    switch(state)
+    {
+        case ProfilingState::Uninitialised:       return "Uninitialised";
+        case ProfilingState::NotConnected:        return "NotConnected";
+        case ProfilingState::WaitingForAck:       return "WaitingForAck";
+        case ProfilingState::Active:              return "Active";
+        default:                                  return "Unknown";
+    }
+}
+
+} //namespace profiling
+
+} //namespace armnn
+