Struct InputData 

pub struct InputData(/* private fields */);

Type-erased readable source for input data fed to a subprocess’s stdin.

InputData wraps a reader, so it can supply stdin data from any readable source: in-memory bytes, a custom Read implementation that generates or transforms data, etc.

Use InputData::from_bytes for in-memory byte data (Vec<u8>, bytes::Bytes, memmap2::Mmap, etc.) and InputData::from_reader for a custom Read implementation.

Implementations

impl InputData

pub fn from_bytes(data: impl AsRef<[u8]> + Send + Sync + 'static) -> Self

Create InputData from in-memory byte data.

Accepts any type that implements AsRef<[u8]>, such as Vec<u8>, Box<[u8]>, bytes::Bytes, or memmap2::Mmap.

pub fn from_reader(reader: impl Read + Send + Sync + 'static) -> Self

Create InputData from a custom Read implementation that generates or transforms data on the fly.

Trait Implementations

impl Debug for InputData

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

Formats the value using the given formatter.

impl Default for InputData

fn default() -> Self

Returns the “default value” for a type.

impl Read for InputData

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

Pull some bytes from this source into the specified buffer, returning how many bytes were read.

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

Like read, except that it reads into a slice of buffers.

fn is_read_vectored(&self) -> bool

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

Determines if this Reader has an efficient read_vectored implementation.

fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize, Error>

Reads all bytes until EOF in this source, placing them into buf.

fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>

Reads all bytes until EOF in this source, appending them to buf.

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

Reads the exact number of bytes required to fill buf.

fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> Result<(), Error>

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

Pull some bytes from this source into the specified buffer.

fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>

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

Reads the exact number of bytes required to fill cursor.

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

where Self: Sized,

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

fn bytes(self) -> Bytes<Self>

where Self: Sized,

Transforms this Read instance to an Iterator over its bytes.

fn chain<R>(self, next: R) -> Chain<Self, R>

where R: Read, Self: Sized,

Creates an adapter which will chain this stream with another.

fn take(self, limit: u64) -> Take<Self>

where Self: Sized,

Creates an adapter which will read at most limit bytes from it.

fn read_array<const N: usize>(&mut self) -> Result<[u8; N], Error>

where Self: Sized,

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

Read and return a fixed array of bytes from this source.