Module diagnostic 

Mapped Diagnostic Context (MDC).

A lighter technique consists of uniquely stamping each log request.

Structs

StaticDiagnostic

A diagnostic that stores key-value pairs in a static global map.

ThreadLocalDiagnostic

A diagnostic that stores key-value pairs in a thread-local map.

Traits

Diagnostic

A Mapped Diagnostic Context (MDC) that provides diagnostic key-values.