Struct RecordOptions 

pub struct RecordOptions { /* private fields */ }

How a record is written and read. The default is what publish_record and RecordSlot have always done.

Implementations

impl RecordOptions

pub const fn new() -> Self

Not durable, mode 0600, and a 64 KiB read limit.

pub const fn durable(self, durable: bool) -> Self

Make the rename itself survive a crash, not only the contents.

On Unix the parent directory is synced after the rename. Windows has no directory sync, so the record is flushed again after the rename, through the publisher’s own handle. On a file system without POSIX renames the record is reopened by name for that, and the open waits out a concurrent replacement as RecordSlot::read does. An error from that step means the record is in place but may not survive a crash.

pub const fn mode(self, mode: u32) -> Self

Permission bits of a published record, set before any contents are written. Choosing anything wider than 0600 is the caller’s decision.

pub const fn read_limit(self, bytes: u64) -> Self

Largest record RecordSlot::read, RecordSlot::replace_if and RecordSlot::remove_if read, in bytes. A longer one is refused. repair and remove_if_matches keep their original comparison.

Trait Implementations

impl Clone for RecordOptions

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 RecordOptions

impl Debug for RecordOptions

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

Formats the value using the given formatter.

impl Default for RecordOptions

fn default() -> Self

Returns the “default value” for a type.

impl Eq for RecordOptions

impl PartialEq for RecordOptions

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for RecordOptions