Struct SlowLogConfig 

pub struct SlowLogConfig {
    pub enabled: bool,
    pub threshold: String,
    pub path: Option<String>,
    pub max_size: Option<String>,
}

Slow-query log configuration (P5 / #16). Default off — recording every slow query to a side file is opinionated enough to warrant an explicit opt-in. When enabled, the HistoryDb::record hook also appends a tab-separated line to path for every run whose duration_ms >= threshold_ms.

max_size (#55) caps the slow-log file: before a tee write that would push the file past the cap, the existing log is rotated to <path>.1 (a single archive — a second rotation overwrites it) and a fresh empty log is started. None (the default) disables rotation so the log grows unbounded.

Fields

enabled: bool

threshold: String

Threshold expressed as humantime (e.g. "1s", "250ms", "2m"). The CLI also accepts a bare integer of milliseconds.

path: Option<String>

Append target. When None, defaults to <XDG_DATA_HOME>/ferrule/slow.log.

max_size: Option<String>

Maximum slow-log file size before single-archive rotation, as a byte-size string ("10MB", "5MiB", or a bare integer of bytes). None disables rotation. See Self::max_size_bytes.

Implementations

impl SlowLogConfig

pub fn threshold_ms(&self) -> Result<u64, String>

Resolve threshold to a millisecond count. Accepts a bare integer ("500" → 500ms) or any humantime-style duration string. Returns Err with a clear message on bad input.

pub fn max_size_bytes(&self) -> Result<Option<u64>, String>

Resolve max_size to a byte count. Returns Ok(None) when no cap is configured (rotation disabled), Ok(Some(bytes)) for a valid size string, and Err with a clear message on bad input.

Trait Implementations

impl Clone for SlowLogConfig

fn clone(&self) -> SlowLogConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SlowLogConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for SlowLogConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SlowLogConfig

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for SlowLogConfig

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.