Struct RotationPolicy 

pub struct RotationPolicy { /* private fields */ }

Size-based rotation policy for JsonlReceiptLog (issue #802).

max_file_bytes is the size at which the live file is rotated; retained_files is how many numbered backups (.1..=.N) to keep (0 truncates the live file in place instead of keeping backups). A max_file_bytes of 0 disables rotation entirely (the live file grows unbounded) — a degenerate value the engine accepts but production never produces.

The engine deliberately accepts any values (the rotation guards in JsonlReceiptLog::append cope with a sub-line cap, and tests use tiny caps to exercise rotation deterministically). Production policies are built only from a decdn_common::config::ResolvedReceipts via the From impl below, and that config type is range-validated by decdn_common::config::resolve_config — so every live policy is within the operator-facing safe bounds ([MIN_RECEIPT_MAX_FILE_BYTES, MAX_RECEIPT_MAX_FILE_BYTES], retained_files <= MAX_RECEIPT_RETAINED_FILES).

Trait Implementations

impl Clone for RotationPolicy

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RotationPolicy

impl Debug for RotationPolicy

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

Formats the value using the given formatter.

impl From<&ResolvedReceipts> for RotationPolicy

fn from(r: &ResolvedReceipts) -> Self

The sole production constructor. ResolvedReceipts is range-validated by the config resolver, so the policy is always within the operator-facing safe bounds — the validation guarantee carries across the type boundary instead of being re-opened by a raw constructor.