IVGCVSW-5675 Implement Pimpl Idiom for IProfiler (lower priority)

Signed-off-by: Francis Murtagh <francis.murtagh@arm.com>
Change-Id: If716f5f4e9b5433586b8a939d326830482da2f74

1 files changed, 23 insertions, 6 deletions

diff --git a/include/armnn/IProfiler.hpp b/include/armnn/IProfiler.hpp
index 5e6f5087ca..ac422b714f 100644
--- a/include/armnn/IProfiler.hpp
+++ b/include/armnn/IProfiler.hpp
@@ -6,33 +6,50 @@
 #pragma once
 
 #include <iostream>
+#include <memory>
+#include <vector>
 
 namespace armnn
 {
 
+class ProfilerImpl;
+class BackendId;
+class Instrument;
+class Event;
 class IProfiler
 {
 public:
     /// Enables/disables profiling for this profiler.
     /// @param [in] enableProfiling A flag that indicates whether profiling should be enabled or not.
-    virtual void EnableProfiling(bool enableProfiling) = 0;
+    void EnableProfiling(bool enableProfiling);
 
     /// Checks whether profiling is enabled.
     /// Profiling is disabled by default.
     /// @return true if profiling is enabled, false otherwise.
-    virtual bool IsProfilingEnabled() = 0;
+    bool IsProfilingEnabled();
 
     /// Analyzes the tracked events and writes the results to the given output stream.
     /// Please refer to the configuration variables in Profiling.cpp to customize the information written.
     /// @param [out] outStream The stream where to write the profiling results to.
-    virtual void AnalyzeEventsAndWriteResults(std::ostream& outStream) const = 0;
+    void AnalyzeEventsAndWriteResults(std::ostream& outStream) const;
 
     /// Print stats for events in JSON Format to the given output stream.
     /// @param [out] outStream The stream where to write the profiling results to.
-    virtual void Print(std::ostream& outStream) const = 0;
+    void Print(std::ostream& outStream) const;
 
-protected:
-    ~IProfiler() {}
+    ~IProfiler();
+    IProfiler();
+
+private:
+    using InstrumentPtr = std::unique_ptr<Instrument>;
+    Event* BeginEvent(const BackendId& backendId,
+                      const std::string& label,
+                      std::vector<InstrumentPtr>&& instruments);
+    std::unique_ptr<ProfilerImpl> pProfilerImpl;
+    friend class ScopedProfilingEvent;
+
+    // Friend functions for unit testing, see ProfilerTests.cpp.
+    friend size_t GetProfilerEventSequenceSize(armnn::IProfiler* profiler);
 };
 
 } // namespace armnn