Struct HostLeaseStore 

pub struct HostLeaseStore { /* private fields */ }

Atomic machine-global lease store for CLI and runtime adapters.

Implementations

impl HostLeaseStore

pub fn from_env() -> Result<Self, HostLeaseError>

Resolve state from HARN_HOST_LEASE_ROOT, HARN_HOME, or the user home.

pub fn for_root(root: impl Into<PathBuf>) -> Result<Self, HostLeaseError>

Create a store at an explicit root, primarily for hermetic hosts and tests.

pub fn root(&self) -> &Path

Directory containing the lease database and watcher events.

pub fn default_host() -> String

Return the local hostname used when callers omit --host.

pub fn try_acquire( &self, request: HostLeaseRequest, ) -> Result<HostLeaseAcquireReceipt, HostLeaseError>

Attempt one immediate atomic acquisition.

pub fn acquire_wait( &self, request: HostLeaseRequest, wait_timeout: Duration, ) -> Result<HostLeaseAcquireReceipt, HostLeaseError>

Wait on cross-process notifications and expiry, then retry atomically.

pub fn status(&self, host: &str) -> Result<HostLeaseState, HostLeaseError>

Inspect one host, recovering expired or dead-owner state transactionally.

pub fn renew( &self, host: &str, lease_id: &str, ttl_ms: u64, ) -> Result<HostLeaseRenewReceipt, HostLeaseError>

Renew the active lease only when the token matches.

pub fn release( &self, host: &str, lease_id: &str, ) -> Result<HostLeaseReleaseReceipt, HostLeaseError>

Release the active lease only when the token matches.

Trait Implementations

impl Clone for HostLeaseStore

fn clone(&self) -> HostLeaseStore

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for HostLeaseStore

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

Formats the value using the given formatter.