Crate redline_core 

Core types for redline.

This crate contains filter parsing, record capture, NDJSON encoding, binary framing, and binary decoding. It can be used directly by custom integrations that do not need the std subscriber crate.

Structs

CallsiteMetadata

Static metadata sent once per callsite in binary mode.

DecodedCallsiteMetadata

Decoded callsite metadata from a binary metadata frame.

DecodedField

Decoded field from a binary event or span.

DecodedRecord

Decoded event record from a binary frame.

DecodedSpanSnapshot

Decoded span snapshot from a binary frame.

Directive

One target-specific filter rule.

EncodeConfig

Controls which span context is included during encoding.

FieldCapture

tracing field visitor that captures owned values.

InlineString

UTF-8 string storage optimized for short values.

OwnedField

One named structured field.

OwnedRecord

Owned event record ready for encoding.

SpanSnapshot

Snapshot of one span included in an encoded record.

TargetFilter

Target and level filter used by redline.

Timestamp

Unix timestamp used by redline.

Enums

BinaryDecodeError

Error returned when decoding binary frames.

BinaryFrameKind

Binary frame type identifier.

CallsiteKind

Distinguishes event and span callsites.

DecodedBinaryFrame

Decoded binary frame.

FieldValue

Owned field value captured from a tracing event or span.

FilterParseError

Error returned when parsing a filter spec.

OutputFormat

Output format used by redline.

Functions

capture_record_fields

Captures fields from a span record update.

capture_span_fields

Captures fields from span attributes.

decode_binary_frame

Decodes the next binary frame and returns the remaining input.

encode_binary_metadata

Encodes one callsite metadata frame for binary output.

encode_binary_record

Encodes one owned record as a binary event frame.

encode_ndjson_record

Encodes one owned record as NDJSON.

merge_fields

Applies field updates, replacing existing values with the same name.

Type Aliases

OwnedFields

Small-vector field storage used by records and spans.