Struct WriterLock 

pub struct WriterLock { /* private fields */ }

The process-lifetime advisory lock, plus the signal that it is gone.

Dropping this aborts the probe and closes the connection, which releases the lock — so scope IS lifetime, and there is no “forgot to unlock” path.

Implementations

impl WriterLock

pub async fn acquire(database_url: &SecretString) -> Result<Self>

Take the lock, or refuse. Never waits: another live kernel means this one must not start, and blocking would hide that behind a hang.

pub async fn acquire_with_interval( database_url: &SecretString, probe_interval: Duration, ) -> Result<Self>

pub fn is_cancelled(&self) -> bool

True once write authority is gone. Callers stop accepting work.

pub async fn cancelled(&self)

Resolves when write authority is lost. Never resolves while healthy, so it composes in a select! beside the accept loop.

Trait Implementations

impl Debug for WriterLock

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

Formats the value using the given formatter.

impl Drop for WriterLock

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.