Enum ConnectionState 

pub enum ConnectionState {
    Initial,
    AwaitingAuth,
    Authenticating,
    Idle,
    QueryInProgress,
    ReadingResults,
    Closed,
}

Connection state

Variants

Initial

Initial state (not connected)

AwaitingAuth

Startup sent, awaiting authentication request

Authenticating

Authentication in progress

Idle

Idle (ready for query)

QueryInProgress

Query in progress

ReadingResults

Reading query results

Closed

Closed

Implementations

impl ConnectionState

pub const fn can_transition_to(&self, next: ConnectionState) -> bool

Check if transition is valid

pub fn transition(&mut self, next: ConnectionState) -> Result<()>

Transition to new state

Errors

Returns Error::InvalidState if the transition from the current state to next is not allowed.

Trait Implementations

impl Clone for ConnectionState

fn clone(&self) -> ConnectionState

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ConnectionState

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

Formats the value using the given formatter.

impl Display for ConnectionState

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

Formats the value using the given formatter.

impl PartialEq for ConnectionState

fn eq(&self, other: &ConnectionState) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ConnectionState

impl Eq for ConnectionState

impl StructuralPartialEq for ConnectionState