Struct SessionGate 

pub struct SessionGate { /* private fields */ }

Registry of per-session mutexes.

Uses a RwLock<HashMap> to lazily create mutex entries. The outer RwLock is held briefly (read or write) to look up / insert a mutex handle; the actual session serialization happens via the inner Mutex.

Implementations

impl SessionGate

pub fn new() -> Self

Creates a new empty gate.

pub async fn acquire( &self, session_id: Uuid, ) -> Result<SessionGuard, SessionBusy>

Acquires a session lock, returning an RAII guard.

If the session is already held by another run, this returns immediately with an error rather than waiting — concurrent writes to the same session are a programming mistake, not a normal contention scenario.

Errors

Returns SessionBusy if the lock is already held.

Trait Implementations

impl Clone for SessionGate

fn clone(&self) -> SessionGate

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SessionGate

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

Formats the value using the given formatter.

impl Default for SessionGate

fn default() -> SessionGate

Returns the “default value” for a type.