Struct c3p0_pool_pg::r2d2::postgres::notification::Notifications

pub struct Notifications<'conn> { /* fields omitted */ }

Notifications from the Postgres backend.

Methods

impl<'conn> Notifications<'conn>

pub fn len(&self) -> usize

Returns the number of pending notifications.

pub fn is_empty(&self) -> bool

Determines if there are any pending notifications.

pub fn iter(&'a self) -> Iter<'a>

Returns a fallible iterator over pending notifications.

Note

This iterator may start returning Some after previously returning None if more notifications are received.

pub fn blocking_iter(&'a self) -> BlockingIter<'a>

Returns a fallible iterator over notifications that blocks until one is received if none are pending.

The iterator will never return None.

pub fn timeout_iter(&'a self, timeout: Duration) -> TimeoutIter<'a>

Returns a fallible iterator over notifications that blocks for a limited time waiting to receive one if none are pending.

Note

This iterator may start returning Some after previously returning None if more notifications are received.

Trait Implementations

impl<'a> Debug for Notifications<'a>

fn fmt(&self, fmt: &mut Formatter) -> Result<(), Error>

Formats the value using the given formatter.

impl<'a, 'conn> IntoFallibleIterator for &'a Notifications<'conn>

type Item = Notification

The elements of the iterator.

type Error = Error

The error value of the iterator.

type IntoIter = Iter<'a>

The iterator.

fn into_fallible_iterator(self) -> Iter<'a>

Creates a fallible iterator from a value.