Module jsonl 

Structs

MetricsJsonlOutputConfig

Common JSONL output configuration for one metrics file.

MetricsJsonlWriter

Stateful JSONL writer that validates or writes the canonical header once, then appends compact sample rows without rescanning the whole file.

Constants

HARDWARE_ARTIFACT_TYPE

Canonical process hardware artifact type.

HEIMDALL_JSONL_SCHEMA

Canonical Heimdall JSONL schema version used by metrics writers.

NETWORK_ARTIFACT_TYPE

Canonical sender-side network artifact type.

Functions

append_jsonl_sample_row

Appends one compact sample row to a JSONL file with a canonical header.

ensure_single_header

Ensures a JSONL file has exactly one header at the top before samples.

first_non_empty_line

Returns the first non-empty line from a valid canonical JSONL file, if any.

header_json

Builds the canonical header object for a Heimdall JSONL file.

infer_node_id_from_path

Infers a node_id from a metrics file path.

unix_timestamp_secs

Converts a system time to a Unix timestamp in fractional seconds.

validate_existing_header

Validates the existing first non-empty JSONL line as a Heimdall header.