Struct ConnectionManager 

pub struct ConnectionManager { /* private fields */ }

Connection pool manager for AsyncConnection.

The first call to Manager::create holds an async mutex while attempting to open a connection with the configured CreateMode. Concurrent callers wait for that attempt to finish, then use CreateMode::DoNotCreate. If the first attempt fails, the next caller retries with the original create_mode (for idempotent modes only — Create is not retried because a sibling connection may have already created the database).

Implementations

impl ConnectionManager

pub fn new(config: PoolConfig) -> Self

Creates a new connection manager.

Trait Implementations

impl Debug for ConnectionManager

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Manager for ConnectionManager

type Type = AsyncConnection

Type of super::Objects that this Manager creates and recycles.

type Error = Error

Error that this Manager can return when creating and/or recycling super::Objects.

async fn create(&self) -> Result<AsyncConnection>

Creates a new instance of Manager::Type.

async fn recycle( &self, conn: &mut AsyncConnection, _metrics: &Metrics, ) -> RecycleResult<Self::Error>

Tries to recycle an instance of Manager::Type.

fn detach(&self, _obj: &mut Self::Type)

Detaches an instance of Manager::Type from this Manager.