Hackaday - Matter statistic PoC

[ArekBalysNordic]

Proof of Concept for Matter statistics module which is able to create a map of various variables anywhere in the Matter code, keep its value and retrieve it from the storage.

Implemented:

• A map for storing variables and values
• A struct to provide an API for setting, incrementing, decrementing and getting values of stored variables.
• Added some examples to the Matter stack, for example in the CASE session, ChipOverBLE.
• Added CLI interface to read a list of already stored variable names.
• For now, enable it by default using CHIP_DEVICE_VARIABLE_STATISTICS config.

TODO:

• many "TODO" are already described in the code.
• Align it to GN
• Align it to Zephyr's Config
• Refactor the VariableStats struct to make it better and more universal (Error codes, dynamic types of values)
• Find more places in the Matter stack where it can be used.