Struct EntryWriteOptions 

pub struct EntryWriteOptions {
    pub trusted_unique_payloads: bool,
    pub field_name_policy: FieldNamePolicy,
    pub seqnum: Option<u64>,
    pub boot_id: Option<Uuid>,
}

Fields

trusted_unique_payloads: bool

Skips duplicate DATA reference elimination for this ENTRY.

Set this only when the caller guarantees that the entry contains no duplicate full KEY=value payloads after field-name policy filtering. Offset sorting by DATA object offset is always performed regardless of this flag. Misuse can write duplicate DATA offsets into one ENTRY object. Keep the default false unless the producer owns and enforces that invariant.

field_name_policy: FieldNamePolicy

Field-name validation policy for caller-provided fields.

seqnum: Option<u64>

Optional low-level ENTRY seqnum override.

This is for exact journal regeneration and must be monotonically increasing relative to previously written entries. Leave unset for the normal systemd-style auto-incrementing sequence.

boot_id: Option<Uuid>

Optional low-level ENTRY boot ID override.

This is for exact journal regeneration of multi-boot files. Leave unset for the normal writer-wide boot ID.

Implementations

impl EntryWriteOptions

pub fn trusted_unique_payloads(self, enabled: bool) -> Self

Enables or disables the trusted unique-payload fast path.

See EntryWriteOptions::trusted_unique_payloads for the caller invariant required before enabling this option.

pub fn field_name_policy(self, policy: FieldNamePolicy) -> Self

Selects the field-name validation policy for caller-provided fields.

pub fn seqnum(self, seqnum: u64) -> Self

Uses a caller-provided ENTRY seqnum for this entry.

pub fn boot_id(self, boot_id: Uuid) -> Self

Uses a caller-provided ENTRY boot ID for this entry.

Trait Implementations

impl Clone for EntryWriteOptions

fn clone(&self) -> EntryWriteOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for EntryWriteOptions

impl Debug for EntryWriteOptions

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

Formats the value using the given formatter.

impl Default for EntryWriteOptions

fn default() -> EntryWriteOptions

Returns the “default value” for a type.