[−][src]Struct mobc::Pool
A generic connection pool.
Methods
impl<M: Manager> Pool<M>
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pub fn new(manager: M) -> Pool<M>
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Creates a new connection pool with a default configuration.
pub fn builder() -> Builder<M>
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Returns a builder type to configure a new pool.
pub async fn set_max_open_conns<'_>(&'_ self, n: u64)
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Sets the maximum number of connections managed by the pool.
0 means unlimited, defaults to 10.
pub async fn set_max_idle_conns<'_>(&'_ self, n: u64)
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Sets the maximum idle connection count maintained by the pool.
The pool will maintain at most this many idle connections
at all times, while respecting the value of max_open
.
Defaults to 2.
pub async fn set_conn_max_lifetime<'_>(&'_ self, max_lifetime: Option<Duration>)
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Sets the maximum lifetime of connections in the pool.
Expired connections may be closed lazily before reuse.
None meas reuse forever. Defaults to None.
Panics
Panics if max_lifetime
is the zero Duration
.
pub async fn get<'_>(&'_ self) -> Result<Connection<M>, Error<M::Error>>
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Returns a single connection by either opening a new connection or returning an existing connection from the connection pool. Conn will block until either a connection is returned or timeout.
pub async fn get_timeout<'_>(
&'_ self,
duration: Duration
) -> Result<Connection<M>, Error<M::Error>>
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&'_ self,
duration: Duration
) -> Result<Connection<M>, Error<M::Error>>
Retrieves a connection from the pool, waiting for at most timeout
The given timeout will be used instead of the configured connection timeout.
pub async fn state<'_>(&'_ self) -> State
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Returns information about the current state of the pool.
Trait Implementations
impl<M: Manager> Clone for Pool<M>
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Returns a new Pool
referencing the same state as self
.
fn clone(&self) -> Self
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fn clone_from(&mut self, source: &Self)
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impl<M: Manager> Drop for Pool<M>
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Auto Trait Implementations
impl<M> !RefUnwindSafe for Pool<M>
impl<M> Send for Pool<M> where
<M as Manager>::Connection: Send,
<M as Manager>::Error: Send,
<M as Manager>::Connection: Send,
<M as Manager>::Error: Send,
impl<M> Sync for Pool<M> where
<M as Manager>::Connection: Send,
<M as Manager>::Error: Send,
<M as Manager>::Connection: Send,
<M as Manager>::Error: Send,
impl<M> Unpin for Pool<M>
impl<M> !UnwindSafe for Pool<M>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
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> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut 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>,