[−][src]Struct rkv::Manager
A process is only permitted to have one open handle to each Rkv environment. This manager exists to enforce that constraint: don't open environments directly.
Methods
impl Manager
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pub fn singleton() -> &'static RwLock<Manager>
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pub fn get<'p, P>(&self, path: P) -> Result<Option<Arc<RwLock<Rkv>>>, Error> where
P: Into<&'p Path>,
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P: Into<&'p Path>,
Return the open env at path
, returning None
if it has not already been opened.
pub fn get_or_create<'p, F, P>(
&mut self,
path: P,
f: F
) -> Result<Arc<RwLock<Rkv>>, StoreError> where
F: FnOnce(&Path) -> Result<Rkv, StoreError>,
P: Into<&'p Path>,
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&mut self,
path: P,
f: F
) -> Result<Arc<RwLock<Rkv>>, StoreError> where
F: FnOnce(&Path) -> Result<Rkv, StoreError>,
P: Into<&'p Path>,
Return the open env at path
, or create it by calling f
.
pub fn get_or_create_with_capacity<'p, F, P>(
&mut self,
path: P,
capacity: c_uint,
f: F
) -> Result<Arc<RwLock<Rkv>>, StoreError> where
F: FnOnce(&Path, c_uint) -> Result<Rkv, StoreError>,
P: Into<&'p Path>,
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&mut self,
path: P,
capacity: c_uint,
f: F
) -> Result<Arc<RwLock<Rkv>>, StoreError> where
F: FnOnce(&Path, c_uint) -> Result<Rkv, StoreError>,
P: Into<&'p Path>,
Return the open env at path
with capacity capacity
,
or create it by calling f
.
Auto Trait Implementations
Blanket Implementations
impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> From<T> for T
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,