Rust API

server.Server.with_session

Rust

with_session ( self , options : impl Into<NewSessionOptions> , operation : impl AsyncFnOnce(&Session) -> Result<T, E> ) → Result<T, crate::ScopeError<T, E>> method [source] ¶ method [source] ¶ with_session: Create a session, run an operation with it, then kill it.

crate::ScopeError retains creation, operation and cleanup failures separately. If operation and cleanup both fail, both original errors are returned. Cleanup errors carry Error::AfterEffect because creation succeeded.
Errors
Returns crate::ScopeError when creation, the operation, or cleanup fails. The operation's error needs no conversion into Error .
Cancel safety
Nothing is left behind. Once polled, creation and cleanup run in tasks of their own, so the session is killed even if this future is dropped or the operation panics, while the Tokio runtime is alive. A cleanup failure then has no caller to reach; the tracing feature records it.

0 declared, 0 inherited