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SessionSlotGuard

hopr_transport_session::manager

Struct SessionSlotGuard 

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struct SessionSlotGuard<'a> {
    sessions: &'a Cache<SessionId, SessionSlot>,
    session_id: SessionId,
    committed: bool,
}
Expand description

RAII guard that rolls back a freshly inserted SessionSlot unless the session setup is explicitly committed.

Establishing a session involves several fallible steps after the slot has been inserted into the Session cache (constructing the HoprSession, notifying about the new session, sending the establishment message, …). If any of these steps fails, the already inserted slot would otherwise linger in the cache until idle eviction, blocking the pseudonym (and counting towards maximum_sessions) in the meantime.

Dropping this guard without committing removes the slot and tears down the partially initialized session. Since Moka’s removal is asynchronous and Rust has no asynchronous Drop, the cleanup is performed on a spawned task.

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§sessions: &'a Cache<SessionId, SessionSlot>§session_id: SessionId§committed: bool

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impl<'a> SessionSlotGuard<'a>

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fn new( sessions: &'a Cache<SessionId, SessionSlot>, session_id: SessionId, ) -> Self

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fn commit(&mut self)

Marks the session as successfully established, preventing the slot from being rolled back when this guard is dropped.

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impl Drop for SessionSlotGuard<'_>

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fn drop(&mut self)

Executes the destructor for this type. Read more

Auto Trait Implementations§

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impl<'a> Freeze for SessionSlotGuard<'a>

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impl<'a> !RefUnwindSafe for SessionSlotGuard<'a>

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impl<'a> Send for SessionSlotGuard<'a>

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impl<'a> Sync for SessionSlotGuard<'a>

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impl<'a> Unpin for SessionSlotGuard<'a>

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impl<'a> !UnwindSafe for SessionSlotGuard<'a>

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