Struct WriterLease 

pub struct WriterLease { /* private fields */ }

An acquired per-run writer lease; dropping it releases the lock.

Implementations

impl WriterLease

pub fn acquire(root: impl AsRef<Path>, run_id: &str) -> Result<Self, StoreError>

Takes the run’s lease without blocking. A lease held elsewhere — another process, or another handle in this one — is StoreError::WriterBusy; any other lock failure surfaces as StoreError::Io.

pub fn is_held(root: impl AsRef<Path>, run_id: &str) -> bool

Probes liveness: true iff some holder currently has the lease. The probe try-locks and immediately unlocks + closes; it never holds across anything else and creates nothing: a lease can only be held on an existing lock file, so a missing file is false without touching the filesystem. A lock file that exists but cannot be opened answers true (fail closed: a probe that cannot see must not vouch).

pub fn run_id(&self) -> &str

The run this lease guards.

Trait Implementations

impl Debug for WriterLease

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

Formats the value using the given formatter.

impl Drop for WriterLease

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.