Struct SingleUserToken

Source

pub struct SingleUserToken(/* private fields */);

Expand description

An opaque capability token proving the caller is inside an Isam::as_single_user closure.

SingleUserToken can only be constructed by as_single_user; a reference to it is passed into the closure and must be forwarded to any administrative method that requires exclusive access. This enforces at compile time that Isam::compact, Isam::migrate_values, Isam::migrate_keys, and Isam::migrate_index are never called outside of single-user mode.

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SingleUserToken

Struct SingleUserToken Copy item path

Auto Trait Implementations§

impl Freeze for SingleUserToken

impl RefUnwindSafe for SingleUserToken

impl Send for SingleUserToken

impl Sync for SingleUserToken

impl Unpin for SingleUserToken

impl UnsafeUnpin for SingleUserToken

impl UnwindSafe for SingleUserToken

Blanket Implementations§

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Struct SingleUserToken

impl<T> Any for T
where T: 'static + ?Sized,

impl<T> Borrow<T> for T
where T: ?Sized,

impl<T> BorrowMut<T> for T
where T: ?Sized,

impl<T, U> Into<U> for T
where U: From<T>,

impl<T, U> TryFrom<U> for T
where U: Into<T>,

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,