Struct RotationManager 

pub struct RotationManager { /* private fields */ }

Manages log file rotation and retention.

Tracks file size and time, rotates files when thresholds are reached, and applies retention policies to clean up old files.

Implementations

impl RotationManager

pub fn new( base_path: PathBuf, policy: RotationPolicy, retention: Option<usize>, ) -> Self

Creates a new rotation manager.

Arguments

• base_path - Path to the log file
• policy - Rotation policy (size, time, or both)
• retention - Maximum number of rotated files to keep (None = unlimited)

pub fn should_rotate(&mut self, additional_size: u64) -> bool

Checks if the log file should be rotated.

Arguments

• additional_size - Size of data about to be written

Returns

true if rotation is needed, false otherwise

pub fn rotate(&mut self) -> Result<PathBuf>

Rotates the log file by renaming it with a timestamp.

Creates a new file with the original name and applies retention policy.

Returns

Path to the rotated file, or an error if rotation fails

pub fn update_size(&mut self, size: u64)

Updates the current file size by adding the specified bytes.

Arguments

• size - Number of bytes to add to current size

pub fn current_size(&self) -> u64

Returns the current file size in bytes.