Struct FlockPidLockManager 

pub struct FlockPidLockManager { /* private fields */ }

Implementations

impl FlockPidLockManager

pub fn new(datadir: impl Into<PathBuf>) -> Result<Self, PidLockError>

Take the pid lock on datadir and construct a manager. Fails with PidLockError::AlreadyHeld if another process already holds the lock, or PidLockError::SetupFailed for any other I/O failure.

pub fn datadir(&self) -> &Path

Trait Implementations

impl Debug for FlockPidLockManager

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

Formats the value using the given formatter.

impl LockManager for FlockPidLockManager

fn try_lock<'life0, 'life1, 'async_trait>( &'life0 self, key: &'life1 str, ) -> Pin<Box<dyn Future<Output = Option<Box<dyn LockGuard>>> + Send + 'async_trait>>

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

Try to acquire the named lock without waiting. Returns None if it is already held, the key is rejected by [validate_key], or the backend cannot acquire the lock for any other reason.

fn lock<'life0, 'life1, 'async_trait>( &'life0 self, key: &'life1 str, timeout: Duration, ) -> Pin<Box<dyn Future<Output = Result<Box<dyn LockGuard>>> + Send + 'async_trait>>

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

Acquire the named lock, polling try_lock until it succeeds or timeout elapses.