Make L1TopoByteStreamCnv thread-safe

Rafal Bielskirequested to merge
rbielski/athena:l1topo-bscnv-thread-safety into master

The ByteStream converter L1TopoByteStreamCnv and specifically the tool it uses - L1TopoByteStreamTool - wasn't thread-safe and caused crashes reported in ATR-23935. Fix the code and further ensure thread-safety by moving it to const interfaces.

Details:

  • stop overriding m_sourceIDs during execution of the tool's convert methods - configure them only once in initialize()
  • remove class member m_fea and allocate it on the stack instead
  • make all convert methods of the tool const
  • move the converter to the AthConstConverter interface
  • use ATH_MSG macros for messaging

Fixes ATR-23935

Edited by Rafal Bielski

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