This library provides a runtime-configurable tracing and logging infrastructure for matter.
Tracing is mostly intended for following execution flow and measuring time spent for various operations. They are:
scoped where separate begin and end events are emitted or
instant where a single notable event is emitted, representing a point in time of a notable event
Tracing and instant values MUST be constant strings as some backends rely on that property for caching (e.g. pw_trace would do tokenization and perfetto marks them as perfetto::StaticString)
Data logging provides the tracing module the opportunity to report input/output data for matter data processing.
The data logging is generally limited in count and covers:
Messages, specifically sent matter requests and received matter responses
DNSSD operations as they are a core component of matter, specifically attempts to discover nodes as well as when a node is discovered or fails discovery.
Backends are defined by extending chip::Tracing::Backend in backend.h and registering it via functions in registry.h
Actual usage is controlled using macros.h (and for convenience scope.h provides scoped begin/end invocations).
tracing macros can be completely made a noop by setting ``matter_enable_tracing_support=false` when compiling.