Rx

Struct Rx 

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pub struct Rx<T> { /* private fields */ }
Expand description

A single consumer (receiver) that works in a blocking context.

Additional methods in ChannelShared can be accessed through Deref.

NOTE: Rx is not Clone or Sync. If you need concurrent access, use MRx instead.

Rx has a Send marker and can be moved to other threads. The following code is OK:

use crossfire::*;
let (tx, rx) = mpsc::bounded_blocking::<usize>(100);
std::thread::spawn(move || {
    let _ = rx.recv();
});
drop(tx);

Because Rx does not have a Sync marker, using Arc<Rx> will lose the Send marker.

For your safety, the following code should not compile:

use crossfire::*;
use std::sync::Arc;
let (tx, rx) = mpsc::bounded_blocking::<usize>(100);
let rx = Arc::new(rx);
std::thread::spawn(move || {
    let _ = rx.recv();
});
drop(tx);

Implementations§

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impl<T> Rx<T>

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pub fn recv<'a>(&'a self) -> Result<T, RecvError>

Receives a message from the channel. This method will block until a message is received or the channel is closed.

Returns Ok(T) on success.

Returns Err(RecvError) if the sender has been dropped.

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pub fn try_recv(&self) -> Result<T, TryRecvError>

Attempts to receive a message from the channel without blocking.

Returns Ok(T) when successful.

Returns Err(TryRecvError::Empty) if the channel is empty.

Returns Err(TryRecvError::Disconnected) if the sender has been dropped and the channel is empty.

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pub fn recv_timeout(&self, timeout: Duration) -> Result<T, RecvTimeoutError>

Receives a message from the channel with a timeout. Will block when channel is empty.

The behavior is atomic: the message is either received successfully or the operation is canceled due to a timeout.

Returns Ok(T) when successful.

Returns Err(RecvTimeoutError::Timeout) when a message could not be received because the channel is empty and the operation timed out.

Returns Err(RecvTimeoutError::Disconnected) if the sender has been dropped and the channel is empty.

Methods from Deref<Target = ChannelShared<T>>§

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pub fn len(&self) -> usize

The number of messages in the channel.

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pub fn capacity(&self) -> Option<usize>

The capacity of the channel. Returns None for unbounded channels.

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pub fn is_empty(&self) -> bool

Returns true if the channel is empty.

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pub fn is_full(&self) -> bool

Returns true if the channel is full.

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pub fn is_disconnected(&self) -> bool

Returns true if all senders or receivers have been dropped.

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pub fn get_tx_count(&self) -> usize

Returns the number of senders for the channel.

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pub fn get_rx_count(&self) -> usize

Returns the number of receivers for the channel.

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pub fn get_wakers_count(&self) -> (usize, usize)

Returns the number of wakers for senders and receivers. For debugging purposes.

Trait Implementations§

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impl<T> AsRef<ChannelShared<T>> for Rx<T>

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fn as_ref(&self) -> &ChannelShared<T>

Converts this type into a shared reference of the (usually inferred) input type.
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impl<T: Send + 'static> BlockingRxTrait<T> for Rx<T>

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fn clone_to_vec(self, _count: usize) -> Vec<Self>

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fn recv<'a>(&'a self) -> Result<T, RecvError>

Receives a message from the channel. This method will block until a message is received or the channel is closed. Read more
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fn try_recv(&self) -> Result<T, TryRecvError>

Attempts to receive a message from the channel without blocking. Read more
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fn recv_timeout(&self, timeout: Duration) -> Result<T, RecvTimeoutError>

Receives a message from the channel with a timeout. Will block when channel is empty. Read more
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fn len(&self) -> usize

The number of messages in the channel at the moment
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fn capacity(&self) -> Option<usize>

The capacity of the channel, return None for unbounded channel.
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fn is_empty(&self) -> bool

Whether channel is empty at the moment
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fn is_full(&self) -> bool

Whether the channel is full at the moment
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fn is_disconnected(&self) -> bool

Return true if the other side has closed
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impl<T> Debug for Rx<T>

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

Formats the value using the given formatter. Read more
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impl<T> Deref for Rx<T>

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type Target = ChannelShared<T>

The resulting type after dereferencing.
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fn deref(&self) -> &ChannelShared<T>

Dereferences the value.
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impl<T> Display for Rx<T>

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

Formats the value using the given formatter. Read more
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impl<T> Drop for Rx<T>

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl<T> From<AsyncRx<T>> for Rx<T>

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fn from(value: AsyncRx<T>) -> Self

Converts to this type from the input type.
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impl<T> From<MRx<T>> for Rx<T>

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fn from(rx: MRx<T>) -> Self

Converts to this type from the input type.
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impl<T> From<Rx<T>> for AsyncRx<T>

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fn from(value: Rx<T>) -> Self

Converts to this type from the input type.
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impl<T: Send> Send for Rx<T>

Auto Trait Implementations§

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impl<T> !Freeze for Rx<T>

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impl<T> !RefUnwindSafe for Rx<T>

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impl<T> !Sync for Rx<T>

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impl<T> Unpin for Rx<T>

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impl<T> !UnwindSafe for Rx<T>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

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type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)
The target type on which the method may be called.
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impl<T> ToString for T
where T: Display + ?Sized,

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fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.