pub struct Reader { /* private fields */ }
Available on crate feature
io-pipe
only.Expand description
The read-end of the pipe, implementing the std::io::Read
trait.
Trait Implementations§
Source§impl BufRead for Reader
impl BufRead for Reader
Source§fn fill_buf(&mut self) -> Result<&[u8]>
fn fill_buf(&mut self) -> Result<&[u8]>
Returns the contents of the internal buffer, filling it with more data, via
Read
methods, if empty. Read moreSource§fn consume(&mut self, amt: usize)
fn consume(&mut self, amt: usize)
Marks the given
amount
of additional bytes from the internal buffer as having been read.
Subsequent calls to read
only return bytes that have not been marked as read. Read moreSource§fn has_data_left(&mut self) -> Result<bool, Error>
fn has_data_left(&mut self) -> Result<bool, Error>
🔬This is a nightly-only experimental API. (
buf_read_has_data_left
)Checks if there is any data left to be
read
. Read more1.83.0 · Source§fn skip_until(&mut self, byte: u8) -> Result<usize, Error>
fn skip_until(&mut self, byte: u8) -> Result<usize, Error>
Skips all bytes until the delimiter
byte
or EOF is reached. Read more1.0.0 · Source§fn read_line(&mut self, buf: &mut String) -> Result<usize, Error>
fn read_line(&mut self, buf: &mut String) -> Result<usize, Error>
Reads all bytes until a newline (the
0xA
byte) is reached, and append
them to the provided String
buffer. Read moreSource§impl Read for Reader
impl Read for Reader
Source§fn read(&mut self, out: &mut [u8]) -> Result<usize>
fn read(&mut self, out: &mut [u8]) -> Result<usize>
Pull some bytes from this source into the specified buffer, returning
how many bytes were read. Read more
1.36.0 · Source§fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>
fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>
Like
read
, except that it reads into a slice of buffers. Read moreSource§fn is_read_vectored(&self) -> bool
fn is_read_vectored(&self) -> bool
🔬This is a nightly-only experimental API. (
can_vector
)1.0.0 · Source§fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize, Error>
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
. Read more1.0.0 · Source§fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>
fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>
Reads all bytes until EOF in this source, appending them to
buf
. Read more1.6.0 · Source§fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>
fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>
Reads the exact number of bytes required to fill
buf
. Read moreSource§fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> Result<(), Error>
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. Read more
Source§fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>
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
. Read more1.0.0 · Source§fn by_ref(&mut self) -> &mut Selfwhere
Self: Sized,
fn by_ref(&mut self) -> &mut Selfwhere
Self: Sized,
Creates a “by reference” adaptor for this instance of
Read
. Read moreAuto Trait Implementations§
impl Freeze for Reader
impl RefUnwindSafe for Reader
impl Send for Reader
impl !Sync for Reader
impl Unpin for Reader
impl UnwindSafe for Reader
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<B> BufReadExt for Bwhere
B: BufRead,
impl<B> BufReadExt for Bwhere
B: BufRead,
Source§fn byte_lines(self) -> ByteLines<Self>where
Self: Sized,
fn byte_lines(self) -> ByteLines<Self>where
Self: Sized,
Returns an iterator over the lines of this reader, where each line
is represented as a byte string. Read more
Source§fn byte_records(self, terminator: u8) -> ByteRecords<Self>where
Self: Sized,
fn byte_records(self, terminator: u8) -> ByteRecords<Self>where
Self: Sized,
Returns an iterator over byte-terminated records of this reader, where
each record is represented as a byte string. Read more
Source§fn for_byte_line<F>(&mut self, for_each_line: F) -> Result<(), Error>
fn for_byte_line<F>(&mut self, for_each_line: F) -> Result<(), Error>
Executes the given closure on each line in the underlying reader. Read more
Source§fn for_byte_record<F>(
&mut self,
terminator: u8,
for_each_record: F,
) -> Result<(), Error>
fn for_byte_record<F>( &mut self, terminator: u8, for_each_record: F, ) -> Result<(), Error>
Executes the given closure on each byte-terminated record in the
underlying reader. Read more