Struct JournalRegion4 

pub struct JournalRegion4 { /* private fields */ }

File-backed journal region (concrete v1 layout).

See EventsRegion for the creator/joiner initialization model.

Implementations

impl JournalRegion4

pub fn open(name: &str) -> Result<Self, Error>

Open (or create) a journal region using the default path for name.

pub fn open_with(name: &str, options: JournalOpenOptions) -> Result<Self, Error>

Open (or create) a journal region using explicit options.

pub fn open_path(path: impl AsRef<Path>) -> Result<Self, Error>

Open (or create) a journal region backed by path.

pub fn open_path_with( path: impl AsRef<Path>, options: JournalOpenOptions, ) -> Result<Self, Error>

Open (or create) a journal region backed by path with explicit options.

See EventsRegion::open_path_with for error semantics.

pub fn flush(&self) -> Result<()>

Flush modified pages to the underlying file (best-effort durability).

pub fn flush_async(&self) -> Result<()>

Flush modified pages asynchronously.

pub fn as_ptr(&self) -> *mut JournalLayout4

Get the raw layout pointer for this mapping.

The pointer is valid as long as the JournalRegion4 is alive.

pub fn publisher( &mut self, cfg: JournalPublisherConfig, ) -> Result<JournalPublisher, Error>

Create a journal publisher.

pub fn subscriber( &mut self, idx: usize, start_pos: u64, ) -> Result<JournalSubscriber, Error>

Create a journal subscriber at idx starting from start_pos.

pub fn subscriber_with_config( &mut self, idx: usize, start_pos: u64, cfg: JournalSubscriberConfig, ) -> Result<JournalSubscriber, Error>

Create a journal subscriber with explicit configuration.

Trait Implementations

impl Send for JournalRegion4

impl Sync for JournalRegion4