MysqlCancelToken

diesel_async

Struct MysqlCancelToken 

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pub struct MysqlCancelToken { /* private fields */ }
Available on crate feature mysql only.
Expand description

The capability to request cancellation of in-progress queries on a connection.

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impl MysqlCancelToken

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pub async fn cancel_query(&self) -> ConnectionResult<()>

Attempts to cancel the in-progress query on the connection associated with this CancelToken.

The server provides no information about whether a cancellation attempt was successful or not. An error will only be returned if the client was unable to connect to the database.

Cancellation is inherently racy. There is no guarantee that the cancellation request will reach the server before the query terminates normally, or that the connection associated with this token is still active.

Trait Implementations§

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impl Clone for MysqlCancelToken

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fn clone(&self) -> MysqlCancelToken

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more

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🔬This is a nightly-only experimental API. (clone_to_uninit)
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Convert self to an expression for Diesel’s query builder. Read more
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Executes the given command, returning the number of rows affected. Read more
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Executes the given query, returning a Vec with the returned rows. Read more
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where U: Send, Conn: AsyncConnectionCore, Self: LoadQuery<'query, Conn, U> + 'query,

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