Struct PDataWriter

pub struct PDataWriter<W: Write> { /* private fields */ }

A P-Data value writer.

This exposes an API to iteratively construct and send Data messages to another node. Using this as a standard writer will automatically split the incoming bytes into separate PDUs if they do not fit in a single one.

Example

Use an association’s send_pdata method to create a new P-Data value writer.

let mut association = ClientAssociationOptions::new()
   .establish("129.168.0.5:104")?;

let presentation_context_id = association.presentation_contexts()[0].id;

// send a command first
association.send(&Pdu::PData {
    data: vec![PDataValue {
    presentation_context_id,
    value_type: PDataValueType::Command,
        is_last: true,
        data: command_data(),
    }],
});

// then send a DICOM object which may be split into multiple PDUs
let mut pdata = association.send_pdata(presentation_context_id);
pdata.write_all(dicom_data())?;
pdata.finish()?;

let pdu_ac = association.receive()?;

Implementations

impl<W> PDataWriter<W>

where W: Write,

pub fn finish(self) -> Result<()>

Declare to have finished sending P-Data fragments, thus emitting the last P-Data fragment PDU.

This is also done automatically once the P-Data writer is dropped.

Trait Implementations

impl<W> Drop for PDataWriter<W>

where W: Write,

With the P-Data writer dropped, this Drop implementation will construct and emit the last P-Data fragment PDU if there is any data left to send.

fn drop(&mut self)

Executes the destructor for this type.

impl<W> Write for PDataWriter<W>

where W: Write,

fn write(&mut self, buf: &[u8]) -> Result<usize>

Writes a buffer into this writer, returning how many bytes were written.

fn flush(&mut self) -> Result<()>

Flushes this output stream, ensuring that all intermediately buffered contents reach their destination.

fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>

Like write, except that it writes from a slice of buffers.

fn is_write_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (can_vector)

Determines if this Writer has an efficient write_vectored implementation.

fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>

Attempts to write an entire buffer into this writer.

fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

🔬This is a nightly-only experimental API. (write_all_vectored)

Attempts to write multiple buffers into this writer.

fn write_fmt(&mut self, args: Arguments<'_>) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered.

fn by_ref(&mut self) -> &mut Self

where Self: Sized,

Creates a “by reference” adapter for this instance of Write.