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RotatingWriter

digdigdig3_station::storage::rotation

Struct RotatingWriter 

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pub struct RotatingWriter { /* private fields */ }
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Wraps a daily {YYYY-MM-DD}.bin file with automatic rotation at UTC midnight.

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impl RotatingWriter

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pub fn new(dir: impl Into<PathBuf>) -> Result<Self>

Open (or create) today’s daily file under dir.

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pub fn append(&mut self, ts_ms: i64, payload: &[u8]) -> Result<()>

Append one record. Rotates to a new file if UTC date has advanced.

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

Flush buffered data to the OS.

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pub fn rotate_to(&mut self, day: NaiveDate) -> Result<()>

Force rotate to a specific date. Used in tests to simulate midnight crossing.

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pub fn current_day(&self) -> NaiveDate

Return the current day this writer is writing to.

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