Enum FlushMethod 

pub enum FlushMethod {
    Fdatasync,
    FullFsync,
    Fsync,
    Dsync,
    IoUring,
}

How a batch is made durable.

Variants

Fdatasync

fdatasync after the writes.

FullFsync

fcntl(F_FULLFSYNC) after the writes (macOS default). The only call macOS guarantees reaches stable media.

Fsync

Plain fsync. On macOS this does not flush the drive cache: use it only for development figures, never for durability claims.

Dsync

Linux: each write carries RWF_DSYNC; no separate flush call (Linux default, together with LocalOptions::direct_io). Where O_DIRECT is refused, the log uses buffered writes and fdatasync instead.

IoUring

Linux with the io-uring feature: writes and fdatasync linked in one submission. Writes are buffered: direct_io does not apply.

Implementations

impl FlushMethod

pub fn platform_default() -> Self

Trait Implementations

impl Clone for FlushMethod

fn clone(&self) -> FlushMethod

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FlushMethod

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

Formats the value using the given formatter.

impl PartialEq for FlushMethod

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for FlushMethod

impl Eq for FlushMethod

impl StructuralPartialEq for FlushMethod