Struct rkv::Manager

pub struct Manager<E> { /* fields omitted */ }

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.

Implementations

impl<E> Manager<E>

pub fn get<'p, P>(
    &self,
    path: P
) -> Result<Option<Arc<RwLock<Rkv<E>>>>, StoreError> where
    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<E>>>, StoreError> where
    F: FnOnce(&Path) -> Result<Rkv<E>, 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<E>>>, StoreError> where
    F: FnOnce(&Path, c_uint) -> Result<Rkv<E>, StoreError>,
    P: Into<&'p Path>, 

Return the open env at path with capacity, or create it by calling f.

impl Manager<LmdbEnvironment>

pub fn singleton() -> &'static RwLock<Manager<LmdbEnvironment>>

impl Manager<SafeModeEnvironment>

pub fn singleton() -> &'static RwLock<Manager<SafeModeEnvironment>>