Status

Background

ACS makes use of Loki and ACE libraries to implement singleton functionalities. Loki is an old library providing support for singleton; on the other hand ACE is a maintained middleware for portability which also offers singleton implementation because it was not officially offered by C++ or Boost years ago. The problem is that the support for Loki library was discontinued and it is becoming a legacy software in ACS. These days the standard C++ library provides a mechanism for clean and thread-safe singleton implementations based on static variables, hence it would make sense to migrate the existing singletons to one of the two clean mechanisms available depending on the requirements.

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