Struct tokio_util::codec::Framed[][src]

pub struct Framed<T, U> { /* fields omitted */ }
Expand description

A unified Stream and Sink interface to an underlying I/O object, using the Encoder and Decoder traits to encode and decode frames.

You can create a Framed instance by using the Decoder::framed adapter, or by using the new function seen below.

Implementations

Provides a Stream and Sink interface for reading and writing to this I/O object, using Decoder and Encoder to read and write the raw data.

Raw I/O objects work with byte sequences, but higher-level code usually wants to batch these into meaningful chunks, called “frames”. This method layers framing on top of an I/O object, by using the codec traits to handle encoding and decoding of messages frames. Note that the incoming and outgoing frame types may be distinct.

This function returns a single object that is both Stream and Sink; grouping this into a single object is often useful for layering things like gzip or TLS, which require both read and write access to the underlying object.

If you want to work more directly with the streams and sink, consider calling split on the Framed returned by this method, which will break them into separate objects, allowing them to interact more easily.

Note that, for some byte sources, the stream can be resumed after an EOF by reading from it, even after it has returned None. Repeated attempts to do so, without new data available, continue to return None without creating more (closing) frames.

Provides a Stream and Sink interface for reading and writing to this I/O object, using Decoder and Encoder to read and write the raw data, with a specific read buffer initial capacity.

Raw I/O objects work with byte sequences, but higher-level code usually wants to batch these into meaningful chunks, called “frames”. This method layers framing on top of an I/O object, by using the codec traits to handle encoding and decoding of messages frames. Note that the incoming and outgoing frame types may be distinct.

This function returns a single object that is both Stream and Sink; grouping this into a single object is often useful for layering things like gzip or TLS, which require both read and write access to the underlying object.

If you want to work more directly with the streams and sink, consider calling split on the Framed returned by this method, which will break them into separate objects, allowing them to interact more easily.

Provides a Stream and Sink interface for reading and writing to this I/O object, using Decoder and Encoder to read and write the raw data.

Raw I/O objects work with byte sequences, but higher-level code usually wants to batch these into meaningful chunks, called “frames”. This method layers framing on top of an I/O object, by using the Codec traits to handle encoding and decoding of messages frames. Note that the incoming and outgoing frame types may be distinct.

This function returns a single object that is both Stream and Sink; grouping this into a single object is often useful for layering things like gzip or TLS, which require both read and write access to the underlying object.

This objects takes a stream and a readbuffer and a writebuffer. These field can be obtained from an existing Framed with the into_parts method.

If you want to work more directly with the streams and sink, consider calling split on the Framed returned by this method, which will break them into separate objects, allowing them to interact more easily.

Returns a reference to the underlying I/O stream wrapped by Framed.

Note that care should be taken to not tamper with the underlying stream of data coming in as it may corrupt the stream of frames otherwise being worked with.

Returns a mutable reference to the underlying I/O stream wrapped by Framed.

Note that care should be taken to not tamper with the underlying stream of data coming in as it may corrupt the stream of frames otherwise being worked with.

Returns a pinned mutable reference to the underlying I/O stream wrapped by Framed.

Note that care should be taken to not tamper with the underlying stream of data coming in as it may corrupt the stream of frames otherwise being worked with.

Returns a reference to the underlying codec wrapped by Framed.

Note that care should be taken to not tamper with the underlying codec as it may corrupt the stream of frames otherwise being worked with.

Returns a mutable reference to the underlying codec wrapped by Framed.

Note that care should be taken to not tamper with the underlying codec as it may corrupt the stream of frames otherwise being worked with.

Returns a reference to the read buffer.

Returns a mutable reference to the read buffer.

Returns a reference to the write buffer.

Returns a mutable reference to the write buffer.

Consumes the Framed, returning its underlying I/O stream.

Note that care should be taken to not tamper with the underlying stream of data coming in as it may corrupt the stream of frames otherwise being worked with.

Consumes the Framed, returning its underlying I/O stream, the buffer with unprocessed data, and the codec.

Note that care should be taken to not tamper with the underlying stream of data coming in as it may corrupt the stream of frames otherwise being worked with.

Trait Implementations

Formats the value using the given formatter. Read more

The type of value produced by the sink when an error occurs.

Attempts to prepare the Sink to receive a value. Read more

Begin the process of sending a value to the sink. Each call to this function must be preceded by a successful call to poll_ready which returned Poll::Ready(Ok(())). Read more

Flush any remaining output from this sink. Read more

Flush any remaining output and close this sink, if necessary. Read more

Values yielded by the stream.

Attempt to pull out the next value of this stream, registering the current task for wakeup if the value is not yet available, and returning None if the stream is exhausted. Read more

Returns the bounds on the remaining length of the stream. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Performs the conversion.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

The type of successful values yielded by this future

The type of failures yielded by this future

Poll this TryStream as if it were a Stream. Read more