Struct postgres::CancelToken
source · pub struct CancelToken(_);
Expand description
The capability to request cancellation of in-progress queries on a connection.
Implementations§
source§impl CancelToken
impl CancelToken
sourcepub fn cancel_query<T>(&self, tls: T) -> Result<(), Error>where
T: MakeTlsConnect<Socket>,
pub fn cancel_query<T>(&self, tls: T) -> Result<(), Error>where T: MakeTlsConnect<Socket>,
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§
source§impl Clone for CancelToken
impl Clone for CancelToken
source§fn clone(&self) -> CancelToken
fn clone(&self) -> CancelToken
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read more