Struct FlushWalOptions 

pub struct FlushWalOptions { /* private fields */ }

Options for DB::flush_wal_with_options.

Flushing the WAL moves buffered writes from RocksDB’s own memory into the operating system, which is what makes them survive a process crash. It takes an fsync on top of that, requested with set_sync, to survive losing the machine.

Implementations

impl FlushWalOptions

pub fn new() -> FlushWalOptions

pub fn set_sync(&mut self, sync: bool)

Calls SyncWAL() after the flush, so the writes are on durable storage rather than only handed to the operating system.

Default: false

pub fn get_sync(&self) -> bool

Returns the value of the sync option.

pub fn set_rate_limiter_priority(&mut self, priority: IoPriority)

Charges the IO this flush performs to the rate limiter set with Options::set_ratelimiter at the given priority, and passes the priority down to the file system.

IoPriority::Total disables charging the rate limiter, which is the default.

pub fn get_rate_limiter_priority(&self) -> Option<IoPriority>

Returns the value of the rate_limiter_priority option.

Returns None if RocksDB reports a priority this crate has no variant for, which should not happen.

Trait Implementations

impl Default for FlushWalOptions

fn default() -> Self

Returns the “default value” for a type.

impl Drop for FlushWalOptions

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.