Struct LogWriter 

pub struct LogWriter { /* private fields */ }

A log writer that produces zstd-compressed JSONL segment files in a directory, compatible with LogTailer.

Implementations

impl LogWriter

pub fn write_line(&mut self, line: &str) -> Result<()>

Write a JSONL line (record) to the current segment.

If no segment is open, one will be created. After writing, if the segment has exceeded max_file_size or max_segment_duration it will be closed and a new segment will be opened on the next write.

pub fn write_value<S: Serialize>(&mut self, value: &S) -> Result<()>

Serialize value to JSON and write it as a JSONL line.

pub fn maintain(&mut self) -> Result<()>

Flush and close the current segment if it has exceeded max_segment_duration. This is a no-op if no segment is open or if the duration has not been exceeded.

pub fn close(&mut self) -> Result<()>

Flush and close the current segment, regardless of whether it has exceeded any configured constraints.

pub fn flush_without_marking_done(&mut self) -> Result<()>

Finish the zstd stream so the data is readable, but do NOT mark the file as done (readonly). This is useful for tests that need to simulate an in-progress segment.

Trait Implementations

impl Drop for LogWriter

fn drop(&mut self)

Executes the destructor for this type.