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FrameDecoder

Struct FrameDecoder 

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

A low-level decoder that splits the byte stream into Frame values.

This decoder classifies each line purely from its content — it does not track which command was sent. Multi-line response accumulation (Line/End grouping) is left to higher layers.

>CLIENT:ENV accumulation is handled here because the protocol guarantees atomicity for that block.

§Example

use bytes::BytesMut;
use tokio_util::codec::Decoder;
use openvpn_mgmt_frame::{Frame, FrameDecoder};

let mut decoder = FrameDecoder::new();
let mut buf = BytesMut::from(">INFO:OpenVPN Management Interface\n");

// The first >INFO: line is emitted as Frame::Info (the connection banner).
assert_eq!(
    decoder.decode(&mut buf).unwrap(),
    Some(Frame::Info("OpenVPN Management Interface".to_string())),
);

Implementations§

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impl FrameDecoder

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pub fn new() -> Self

Create a new frame decoder.

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pub fn with_max_client_env_entries(self, limit: AccumulationLimit) -> Self

Set the maximum ENV entries for >CLIENT: notifications.

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impl Debug for FrameDecoder

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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 Decoder for FrameDecoder

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type Item = Frame

The type of decoded frames.
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type Error = Error

The type of unrecoverable frame decoding errors. Read more
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fn decode( &mut self, src: &mut BytesMut, ) -> Result<Option<Self::Item>, Self::Error>

Attempts to decode a frame from the provided buffer of bytes. Read more
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fn decode_eof( &mut self, buf: &mut BytesMut, ) -> Result<Option<Self::Item>, Self::Error>

A default method available to be called when there are no more bytes available to be read from the underlying I/O. Read more
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fn framed<T>(self, io: T) -> Framed<T, Self>
where T: AsyncRead + AsyncWrite, Self: Sized,

Provides a Stream and Sink interface for reading and writing to this Io object, using Decode and Encode to read and write the raw data. Read more
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impl Default for FrameDecoder

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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> 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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fn in_current_span(self) -> Instrumented<Self>

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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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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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more