feat: direct interface for active.cc and variable rename for understandability #3271

Job	Run time
build_nuget_dotnet (windows-latest, win-x64)	11m 27s
build_nuget_dotnet (ubuntu-latest, linux-x64)	4m 23s
build_nuget_dotnet (macos-latest, osx-x64)	4m 53s
test_nuget_dotnetframework	1m 52s
test_nuget_dotnetcore (windows-latest, win-x64)	3m 20s
test_nuget_dotnetcore (ubuntu-latest, linux-x64)	1m 22s
benchmark_nuget	0s
test_nuget_dotnetcore (macos-latest, osx-x64)	1m 19s
	28m 36s

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