Trait migrate_state::StateGuard

pub trait StateGuard {
    fn client(&mut self) -> &mut dyn StateClient;
    #[must_use]
    fn unlock<'async_trait>(
        self: Box<Self>
    ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
    where
        Self: 'async_trait;
}

Object returned from StateLock::lock() that holds state storage lock while alive, preventing concurrent access to it from multiple threads and processes.

Required methods

fn client(&mut self) -> &mut dyn StateClient

Returns the StateClient to be used to access the migration state while this StateGuard hold the lock.

#[must_use]

fn unlock<'async_trait>(
    self: Box<Self>
) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>> where
    Self: 'async_trait, 

Unlocks currently held migration state lock allowing for other subjects to acquire it with StateLock::lock() once again

Implementors