Struct JsonlJournal 

pub struct JsonlJournal { /* private fields */ }

One JSON-lines file per run, fsynced on every append.

Sequence checks are enforced within this process; use a database-backed journal when several processes may resume the same run.

Implementations

impl JsonlJournal

pub fn new(dir: impl Into<PathBuf>) -> Result<Self, JournalError>

pub fn path_for(&self, run_id: &str) -> PathBuf

pub fn read_file(path: &Path) -> Result<Vec<Event>, JournalError>

Parse a journal file directly (used by tooling).

Trait Implementations

impl Journal for JsonlJournal

fn append<'life0, 'life1, 'async_trait>( &'life0 self, event: &'life1 Event, ) -> Pin<Box<dyn Future<Output = Result<(), JournalError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

fn load<'life0, 'life1, 'async_trait>( &'life0 self, run_id: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<Vec<Event>, JournalError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

fn acquire_lease<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, run_id: &'life1 str, owner: &'life2 str, ttl: Duration, ) -> Pin<Box<dyn Future<Output = Result<Result<(), LeaseHolder>, JournalError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Take (or re-take) the lease on run_id for ttl. Returns the current holder if another live owner has it.

fn renew_lease<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, run_id: &'life1 str, owner: &'life2 str, ttl: Duration, ) -> Pin<Box<dyn Future<Output = Result<bool, JournalError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Extend a lease this owner holds. false means it was lost.

fn release_lease<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, run_id: &'life1 str, owner: &'life2 str, ) -> Pin<Box<dyn Future<Output = Result<(), JournalError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,