Stream

Struct Stream 

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pub struct Stream { /* private fields */ }
Expand description

A network stream.

Stream provides an abstraction over connectionless and connection-oriented network sockets. In many cases, it is not required to know the exact socket family (e.g. TCP, UDP, Unix domain socket) that is being used, and it can be beneficial to allow abstracting over the differences to facilitate simpler code.

§Connection-oriented mode

In connection-oriented mode, the stream is backed by a socket that operates in a connection-oriented manner, which ensures a reliable, ordered stream of messages to and from the remote peer.

The connection address returned when receiving data should be stable for the life of the Stream.

§Connectionless mode

In connectionless mode, the stream is backed by a socket that operates in a connectionless manner, which does not provide any assurances around reliability and ordering of messages to and from the remote peer. While a stream might be backed by a Unix domain socket in datagram mode, which does provide reliability of messages, this cannot and should not be relied upon when using Stream.

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impl Stream

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pub fn is_connectionless(&self) -> bool

Returns true if the stream is connectionless.

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pub async fn receive<B: BufMut>( &mut self, buf: &mut B, ) -> Result<(usize, ConnectionAddress)>

Receives data from the stream.

On success, returns the number of bytes read and the address from whence the data came.

§Errors

If the underlying system call fails, an error is returned.

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impl From<(TcpStream, SocketAddr)> for Stream

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fn from((stream, remote_addr): (TcpStream, SocketAddr)) -> Self

Converts to this type from the input type.
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impl From<UdpSocket> for Stream

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fn from(socket: UdpSocket) -> Self

Converts to this type from the input type.
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impl From<UnixDatagram> for Stream

Available on Unix only.
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fn from(socket: UnixDatagram) -> Self

Converts to this type from the input type.
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impl From<UnixStream> for Stream

Available on Unix only.
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fn from(stream: UnixStream) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

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impl !Freeze for Stream

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impl RefUnwindSafe for Stream

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impl Send for Stream

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impl Sync for Stream

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impl Unpin for Stream

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impl UnwindSafe for Stream

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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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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Wrap the input message T in a tonic::Request
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where L: Layer<S>,

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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fn track_allocations(self, token: AllocationGroupToken) -> Tracked<Self>

Instruments this type by attaching the given allocation group token, returning a Tracked wrapper. Read more
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Instruments this type by attaching the current allocation group, returning a Tracked wrapper. 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.
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where S: Into<Dispatch>,

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