Struct heron::rapier_plugin::rapier2d::crossbeam::channel::Sender [−]
pub struct Sender<T> { /* fields omitted */ }
Expand description
The sending side of a channel.
Examples
use std::thread;
use crossbeam_channel::unbounded;
let (s1, r) = unbounded();
let s2 = s1.clone();
thread::spawn(move || s1.send(1).unwrap());
thread::spawn(move || s2.send(2).unwrap());
let msg1 = r.recv().unwrap();
let msg2 = r.recv().unwrap();
assert_eq!(msg1 + msg2, 3);
Implementations
impl<T> Sender<T>
impl<T> Sender<T>
pub fn try_send(&self, msg: T) -> Result<(), TrySendError<T>>
pub fn try_send(&self, msg: T) -> Result<(), TrySendError<T>>
Attempts to send a message into the channel without blocking.
This method will either send a message into the channel immediately or return an error if the channel is full or disconnected. The returned error contains the original message.
If called on a zero-capacity channel, this method will send the message only if there happens to be a receive operation on the other side of the channel at the same time.
Examples
use crossbeam_channel::{bounded, TrySendError};
let (s, r) = bounded(1);
assert_eq!(s.try_send(1), Ok(()));
assert_eq!(s.try_send(2), Err(TrySendError::Full(2)));
drop(r);
assert_eq!(s.try_send(3), Err(TrySendError::Disconnected(3)));
Blocks the current thread until a message is sent or the channel is disconnected.
If the channel is full and not disconnected, this call will block until the send operation can proceed. If the channel becomes disconnected, this call will wake up and return an error. The returned error contains the original message.
If called on a zero-capacity channel, this method will wait for a receive operation to appear on the other side of the channel.
Examples
use std::thread;
use std::time::Duration;
use crossbeam_channel::{bounded, SendError};
let (s, r) = bounded(1);
assert_eq!(s.send(1), Ok(()));
thread::spawn(move || {
assert_eq!(r.recv(), Ok(1));
thread::sleep(Duration::from_secs(1));
drop(r);
});
assert_eq!(s.send(2), Ok(()));
assert_eq!(s.send(3), Err(SendError(3)));
pub fn send_timeout(
&self,
msg: T,
timeout: Duration
) -> Result<(), SendTimeoutError<T>>
pub fn send_timeout(
&self,
msg: T,
timeout: Duration
) -> Result<(), SendTimeoutError<T>>
Waits for a message to be sent into the channel, but only for a limited time.
If the channel is full and not disconnected, this call will block until the send operation can proceed or the operation times out. If the channel becomes disconnected, this call will wake up and return an error. The returned error contains the original message.
If called on a zero-capacity channel, this method will wait for a receive operation to appear on the other side of the channel.
Examples
use std::thread;
use std::time::Duration;
use crossbeam_channel::{bounded, SendTimeoutError};
let (s, r) = bounded(0);
thread::spawn(move || {
thread::sleep(Duration::from_secs(1));
assert_eq!(r.recv(), Ok(2));
drop(r);
});
assert_eq!(
s.send_timeout(1, Duration::from_millis(500)),
Err(SendTimeoutError::Timeout(1)),
);
assert_eq!(
s.send_timeout(2, Duration::from_secs(1)),
Ok(()),
);
assert_eq!(
s.send_timeout(3, Duration::from_millis(500)),
Err(SendTimeoutError::Disconnected(3)),
);
pub fn send_deadline(
&self,
msg: T,
deadline: Instant
) -> Result<(), SendTimeoutError<T>>
pub fn send_deadline(
&self,
msg: T,
deadline: Instant
) -> Result<(), SendTimeoutError<T>>
Waits for a message to be sent into the channel, but only until a given deadline.
If the channel is full and not disconnected, this call will block until the send operation can proceed or the operation times out. If the channel becomes disconnected, this call will wake up and return an error. The returned error contains the original message.
If called on a zero-capacity channel, this method will wait for a receive operation to appear on the other side of the channel.
Examples
use std::thread;
use std::time::{Duration, Instant};
use crossbeam_channel::{bounded, SendTimeoutError};
let (s, r) = bounded(0);
thread::spawn(move || {
thread::sleep(Duration::from_secs(1));
assert_eq!(r.recv(), Ok(2));
drop(r);
});
let now = Instant::now();
assert_eq!(
s.send_deadline(1, now + Duration::from_millis(500)),
Err(SendTimeoutError::Timeout(1)),
);
assert_eq!(
s.send_deadline(2, now + Duration::from_millis(1500)),
Ok(()),
);
assert_eq!(
s.send_deadline(3, now + Duration::from_millis(2000)),
Err(SendTimeoutError::Disconnected(3)),
);
Returns true
if the channel is empty.
Note: Zero-capacity channels are always empty.
Examples
use crossbeam_channel::unbounded;
let (s, r) = unbounded();
assert!(s.is_empty());
s.send(0).unwrap();
assert!(!s.is_empty());
Returns true
if the channel is full.
Note: Zero-capacity channels are always full.
Examples
use crossbeam_channel::bounded;
let (s, r) = bounded(1);
assert!(!s.is_full());
s.send(0).unwrap();
assert!(s.is_full());
Returns the number of messages in the channel.
Examples
use crossbeam_channel::unbounded;
let (s, r) = unbounded();
assert_eq!(s.len(), 0);
s.send(1).unwrap();
s.send(2).unwrap();
assert_eq!(s.len(), 2);
If the channel is bounded, returns its capacity.
Examples
use crossbeam_channel::{bounded, unbounded};
let (s, _) = unbounded::<i32>();
assert_eq!(s.capacity(), None);
let (s, _) = bounded::<i32>(5);
assert_eq!(s.capacity(), Some(5));
let (s, _) = bounded::<i32>(0);
assert_eq!(s.capacity(), Some(0));
pub fn same_channel(&self, other: &Sender<T>) -> bool
pub fn same_channel(&self, other: &Sender<T>) -> bool
Returns true
if senders belong to the same channel.
Examples
use crossbeam_channel::unbounded;
let (s, _) = unbounded::<usize>();
let s2 = s.clone();
assert!(s.same_channel(&s2));
let (s3, _) = unbounded();
assert!(!s.same_channel(&s3));
Trait Implementations
Auto Trait Implementations
Blanket Implementations
Mutably borrows from an owned value. Read more
impl<T> Downcast for T where
T: Any,
impl<T> Downcast for T where
T: Any,
Convert Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
. Read more
pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
Convert Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
. Read more
Convert &Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read more
pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert &mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s. Read more
impl<T> Pointable for T
impl<T> Pointable for T
impl<SS, SP> SupersetOf<SS> for SP where
SS: SubsetOf<SP>,
impl<SS, SP> SupersetOf<SS> for SP where
SS: SubsetOf<SP>,
The inverse inclusion map: attempts to construct self
from the equivalent element of its
superset. Read more
pub fn is_in_subset(&self) -> bool
pub fn is_in_subset(&self) -> bool
Checks if self
is actually part of its subset T
(and can be converted to it).
pub fn to_subset_unchecked(&self) -> SS
pub fn to_subset_unchecked(&self) -> SS
Use with care! Same as self.to_subset
but without any property checks. Always succeeds.
pub fn from_subset(element: &SS) -> SP
pub fn from_subset(element: &SS) -> SP
The inclusion map: converts self
to the equivalent element of its superset.
pub fn clone_type_data(&self) -> Box<dyn TypeData + 'static, Global>
pub fn vzip(self) -> V
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more