Struct exar::EventStream
[−]
[src]
pub struct EventStream { // some fields omitted }
Exar DB's event stream.
Examples
extern crate exar; use exar::*; use std::sync::mpsc::channel; let (sender, receiver) = channel(); let mut event_stream = EventStream::new(receiver); let event = Event::new("data", vec!["tag1", "tag2"]); let event_stream_message = EventStreamMessage::Event(event); sender.send(event_stream_message);
Methods
impl EventStream
[src]
fn new(receiver: Receiver<EventStreamMessage>) -> EventStream
Returns a new EventStream
from the given Receiver<EventStreamMessage>
.
fn recv(&self) -> Result<Event, EventStreamError>
Attempts to wait for an event on this event stream,
returning an EventStreamError
if the corresponding channel has hung up.
This function will always block the current thread if there is no data available and it's possible for more data to be sent.
fn try_recv(&self) -> Result<Event, EventStreamError>
Attempts to return a pending event on this event stream without blocking.
This method will never block the caller in order to wait for the next event to become available. Instead, this will always return immediately with a possible option of pending data on the channel.
Trait Implementations
impl Iterator for EventStream
[src]
type Item = Event
The type of the elements being iterated over.
fn next(&mut self) -> Option<Self::Item>
Advances the iterator and returns the next value. Read more
fn size_hint(&self) -> (usize, Option<usize>)
1.0.0
Returns the bounds on the remaining length of the iterator. Read more
fn count(self) -> usize
1.0.0
Consumes the iterator, counting the number of iterations and returning it. Read more
fn last(self) -> Option<Self::Item>
1.0.0
Consumes the iterator, returning the last element. Read more
fn nth(&mut self, n: usize) -> Option<Self::Item>
1.0.0
Consumes the n
first elements of the iterator, then returns the next()
one. Read more
fn chain<U>(self, other: U) -> Chain<Self, U::IntoIter> where U: IntoIterator<Item=Self::Item>
1.0.0
Takes two iterators and creates a new iterator over both in sequence. Read more
fn zip<U>(self, other: U) -> Zip<Self, U::IntoIter> where U: IntoIterator
1.0.0
'Zips up' two iterators into a single iterator of pairs. Read more
fn map<B, F>(self, f: F) -> Map<Self, F> where F: FnMut(Self::Item) -> B
1.0.0
Takes a closure and creates an iterator which calls that closure on each element. Read more
fn filter<P>(self, predicate: P) -> Filter<Self, P> where P: FnMut(&Self::Item) -> bool
1.0.0
Creates an iterator which uses a closure to determine if an element should be yielded. Read more
fn filter_map<B, F>(self, f: F) -> FilterMap<Self, F> where F: FnMut(Self::Item) -> Option<B>
1.0.0
Creates an iterator that both filters and maps. Read more
fn enumerate(self) -> Enumerate<Self>
1.0.0
Creates an iterator which gives the current iteration count as well as the next value. Read more
fn peekable(self) -> Peekable<Self>
1.0.0
Creates an iterator which can use peek
to look at the next element of the iterator without consuming it. Read more
fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P> where P: FnMut(&Self::Item) -> bool
1.0.0
Creates an iterator that [skip()
]s elements based on a predicate. Read more
fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P> where P: FnMut(&Self::Item) -> bool
1.0.0
Creates an iterator that yields elements based on a predicate. Read more
fn skip(self, n: usize) -> Skip<Self>
1.0.0
Creates an iterator that skips the first n
elements. Read more
fn take(self, n: usize) -> Take<Self>
1.0.0
Creates an iterator that yields its first n
elements. Read more
fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F> where F: FnMut(&mut St, Self::Item) -> Option<B>
1.0.0
An iterator adaptor similar to [fold()
] that holds internal state and produces a new iterator. Read more
fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F> where F: FnMut(Self::Item) -> U, U: IntoIterator
1.0.0
Creates an iterator that works like map, but flattens nested structure. Read more
fn fuse(self) -> Fuse<Self>
1.0.0
Creates an iterator which ends after the first None
. Read more
fn inspect<F>(self, f: F) -> Inspect<Self, F> where F: FnMut(&Self::Item) -> ()
1.0.0
Do something with each element of an iterator, passing the value on. Read more
fn by_ref(&mut self) -> &mut Self
1.0.0
Borrows an iterator, rather than consuming it. Read more
fn collect<B>(self) -> B where B: FromIterator<Self::Item>
1.0.0
Transforms an iterator into a collection. Read more
fn partition<B, F>(self, f: F) -> (B, B) where B: Default + Extend<Self::Item>, F: FnMut(&Self::Item) -> bool
1.0.0
Consumes an iterator, creating two collections from it. Read more
fn fold<B, F>(self, init: B, f: F) -> B where F: FnMut(B, Self::Item) -> B
1.0.0
An iterator adaptor that applies a function, producing a single, final value. Read more
fn all<F>(&mut self, f: F) -> bool where F: FnMut(Self::Item) -> bool
1.0.0
Tests if every element of the iterator matches a predicate. Read more
fn any<F>(&mut self, f: F) -> bool where F: FnMut(Self::Item) -> bool
1.0.0
Tests if any element of the iterator matches a predicate. Read more
fn find<P>(&mut self, predicate: P) -> Option<Self::Item> where P: FnMut(&Self::Item) -> bool
1.0.0
Searches for an element of an iterator that satisfies a predicate. Read more
fn position<P>(&mut self, predicate: P) -> Option<usize> where P: FnMut(Self::Item) -> bool
1.0.0
Searches for an element in an iterator, returning its index. Read more
fn rposition<P>(&mut self, predicate: P) -> Option<usize> where P: FnMut(Self::Item) -> bool, Self: ExactSizeIterator + DoubleEndedIterator
1.0.0
Searches for an element in an iterator from the right, returning its index. Read more
fn max(self) -> Option<Self::Item> where Self::Item: Ord
1.0.0
Returns the maximum element of an iterator. Read more
fn min(self) -> Option<Self::Item> where Self::Item: Ord
1.0.0
Returns the minimum element of an iterator. Read more
fn max_by_key<B, F>(self, f: F) -> Option<Self::Item> where B: Ord, F: FnMut(&Self::Item) -> B
1.6.0
Returns the element that gives the maximum value from the specified function. Read more
fn min_by_key<B, F>(self, f: F) -> Option<Self::Item> where B: Ord, F: FnMut(&Self::Item) -> B
1.6.0
Returns the element that gives the minimum value from the specified function. Read more
fn rev(self) -> Rev<Self> where Self: DoubleEndedIterator
1.0.0
Reverses an iterator's direction. Read more
fn unzip<A, B, FromA, FromB>(self) -> (FromA, FromB) where FromA: Default + Extend<A>, FromB: Default + Extend<B>, Self: Iterator<Item=(A, B)>
1.0.0
Converts an iterator of pairs into a pair of containers. Read more
fn cloned<'a, T>(self) -> Cloned<Self> where Self: Iterator<Item=&'a T>, T: 'a + Clone
1.0.0
Creates an iterator which clone()
s all of its elements. Read more
fn cycle(self) -> Cycle<Self> where Self: Clone
1.0.0
Repeats an iterator endlessly. Read more
fn sum<S>(self) -> S where S: Sum<Self::Item>
1.11.0
Sums the elements of an iterator. Read more
fn product<P>(self) -> P where P: Product<Self::Item>
1.11.0
Iterates over the entire iterator, multiplying all the elements Read more
fn cmp<I>(self, other: I) -> Ordering where I: IntoIterator<Item=Self::Item>, Self::Item: Ord
1.5.0
Lexicographically compares the elements of this Iterator
with those of another. Read more
fn partial_cmp<I>(self, other: I) -> Option<Ordering> where I: IntoIterator, Self::Item: PartialOrd<I::Item>
1.5.0
Lexicographically compares the elements of this Iterator
with those of another. Read more
fn eq<I>(self, other: I) -> bool where I: IntoIterator, Self::Item: PartialEq<I::Item>
1.5.0
Determines if the elements of this Iterator
are equal to those of another. Read more
fn ne<I>(self, other: I) -> bool where I: IntoIterator, Self::Item: PartialEq<I::Item>
1.5.0
Determines if the elements of this Iterator
are unequal to those of another. Read more
fn lt<I>(self, other: I) -> bool where I: IntoIterator, Self::Item: PartialOrd<I::Item>
1.5.0
Determines if the elements of this Iterator
are lexicographically less than those of another. Read more
fn le<I>(self, other: I) -> bool where I: IntoIterator, Self::Item: PartialOrd<I::Item>
1.5.0
Determines if the elements of this Iterator
are lexicographically less or equal to those of another. Read more
fn gt<I>(self, other: I) -> bool where I: IntoIterator, Self::Item: PartialOrd<I::Item>
1.5.0
Determines if the elements of this Iterator
are lexicographically greater than those of another. Read more
fn ge<I>(self, other: I) -> bool where I: IntoIterator, Self::Item: PartialOrd<I::Item>
1.5.0
Determines if the elements of this Iterator
are lexicographically greater than or equal to those of another. Read more