Package tracing implements utility functions for interacting with a global tracing system.

FinishSpans calls Finish on all message parts containing a span.

GetActiveSpan returns a span attached to a message part.

GetSpan returns a span attached to a message part.

GetSpan returns a span within a context.

GetTraceID returns the traceID from a span attached to a message part.

InitSpan sets up an OpenTracing span on a message part if one does not already exist.

InitSpans sets up OpenTracing spans on each message part if one does not already exist.

InitSpansFromParentTextMap obtains a span parent reference from a text map and creates child spans for each message.

OtelSpan creates a common span from the open telemetry package.

WithChildSpan takes a message, extracts a span, creates a new child span, and returns a new message with that span embedded.

WithChildSpans takes a message, extracts spans per message part, creates new child spans, and returns a new message with those spans embedded.

WithSiblingSpans takes a message, extracts spans per message part, creates new sibling spans, and returns a new message with those spans embedded.

Span abstracts the span type of our global tracing system in order to allow it to be replaced in future.