Struct netio::Take
[−]
[src]
pub struct Take<T> { /* fields omitted */ }
Adapter which limits the bytes read from / written to an underlying reader / writer.
This struct is generally created by calling take()
on a reader/writer.
Please see the documentation of Stream::take
for more details.
Methods
impl<T> Take<T>
[src]
fn new(inner: T, limit: u64) -> Take<T>
[src]
fn limit(&self) -> u64
[src]
Returns the number of bytes that can be read before this instance will return EOF.
Note
This instance may reach EOF after reading fewer bytes than indicated by
this method if the underlying Read
instance reaches EOF.
Trait Implementations
impl<T: Read> Read for Take<T>
[src]
fn read(&mut self, buf: &mut [u8]) -> Result<usize>
[src]
Pull some bytes from this source into the specified buffer, returning how many bytes were read. Read more
unsafe fn initializer(&self) -> Initializer
[src]
read_initializer
)Determines if this Read
er can work with buffers of uninitialized memory. Read more
fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize, Error>
1.0.0[src]
Read all bytes until EOF in this source, placing them into buf
. Read more
fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>
1.0.0[src]
Read all bytes until EOF in this source, placing them into buf
. Read more
fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>
1.6.0[src]
Read the exact number of bytes required to fill buf
. Read more
fn by_ref(&mut self) -> &mut Self
1.0.0[src]
Creates a "by reference" adaptor for this instance of Read
. Read more
fn bytes(self) -> Bytes<Self>
1.0.0[src]
Transforms this Read
instance to an [Iterator
] over its bytes. Read more
fn chars(self) -> Chars<Self>
[src]
🔬 This is a nightly-only experimental API. (io
)
the semantics of a partial read/write of where errors happen is currently unclear and may change
Transforms this Read
instance to an [Iterator
] over [char
]s. Read more
fn chain<R>(self, next: R) -> Chain<Self, R> where
R: Read,
1.0.0[src]
R: Read,
Creates an adaptor which will chain this stream with another. Read more
fn take(self, limit: u64) -> Take<Self>
1.0.0[src]
Creates an adaptor which will read at most limit
bytes from it. Read more
impl<T: BufRead> BufRead for Take<T>
[src]
fn fill_buf(&mut self) -> Result<&[u8]>
[src]
Fills the internal buffer of this object, returning the buffer contents. Read more
fn consume(&mut self, amt: usize)
[src]
Tells this buffer that amt
bytes have been consumed from the buffer, so they should no longer be returned in calls to read
. Read more
fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> Result<usize, Error>
1.0.0[src]
Read all bytes into buf
until the delimiter byte
or EOF is reached. Read more
fn read_line(&mut self, buf: &mut String) -> Result<usize, Error>
1.0.0[src]
Read all bytes until a newline (the 0xA byte) is reached, and append them to the provided buffer. Read more
fn split(self, byte: u8) -> Split<Self>
1.0.0[src]
Returns an iterator over the contents of this reader split on the byte byte
. Read more
fn lines(self) -> Lines<Self>
1.0.0[src]
Returns an iterator over the lines of this reader. Read more
impl<T: Write> Write for Take<T>
[src]
fn write(&mut self, buf: &[u8]) -> Result<usize>
[src]
Write a buffer into this object, returning how many bytes were written. Read more
fn flush(&mut self) -> Result<()>
[src]
Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more
fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>
1.0.0[src]
Attempts to write an entire buffer into this write. Read more
fn write_fmt(&mut self, fmt: Arguments) -> Result<(), Error>
1.0.0[src]
Writes a formatted string into this writer, returning any error encountered. Read more
fn by_ref(&mut self) -> &mut Self
1.0.0[src]
Creates a "by reference" adaptor for this instance of Write
. Read more
impl<T: Read> Read for Take<T>
[src]
fn read(&mut self, buf: &mut [u8]) -> Result<usize>
[src]
Pull some bytes from this source into the specified buffer, returning how many bytes were read. Read more
fn chain<R>(self, next: R) -> Chain<Self, R> where
Self: Sized,
R: Read,
[src]
Self: Sized,
R: Read,
Creates an adaptor which will chain this stream with another. Read more
fn buffer(self) -> BufReader<Self> where
Self: Sized,
[src]
Self: Sized,
Creates a buffered reader with default capacity and default strategies Read more
fn repeat(self) -> Repeat<Self> where
Self: Sized,
[src]
Self: Sized,
Transforms this reader into a reader that automatically restarts from the beginning after EOF is reached Read more
impl<T: BufRead> BufRead for Take<T>
[src]
fn fill_buf(&mut self) -> Result<&[u8]>
[src]
Fills the internal buffer of this object, returning the buffer contents. Read more
fn consume(&mut self, amt: usize)
[src]
Tells this buffer that amt
bytes have been consumed from the buffer, so they should no longer be returned in calls to read
. Read more
fn read_to_end<B: ?Sized>(&mut self, buf: &mut B) -> Result<()> where
Self: Sized,
B: Write,
[src]
Self: Sized,
B: Write,
Read all bytes until EOF in this source, placing them into buf
. Read more
fn skip_to_end(&mut self) -> Result<()>
[src]
Skip all bytes until EOF in this source. Read more
fn read_exact(&mut self, buf: &mut Cursor<&mut [u8]>) -> Result<()>
[src]
Read the exact number of bytes required to fill buf
. Read more
fn bytes(self) -> Bytes<Self> where
Self: Sized,
[src]
Self: Sized,
Transforms this buffered reader into an iterator over its bytes. Read more
fn read_until<W: ?Sized>(&mut self, delim: u8, buf: &mut W) -> Result<()> where
Self: Sized,
W: Write,
[src]
Self: Sized,
W: Write,
Read all bytes into a buffer until a delimiter is reached. Read more
fn skip_until(&mut self, delim: u8) -> Result<()>
[src]
Skips all bytes until a delimiter is reached. Read more
fn split(self, byte: u8) -> Split<Self> where
Self: Sized,
[src]
Self: Sized,
Returns an iterator over the contents of this reader split on a delimiter. Read more
impl<T: BufReadGrow> BufReadGrow for Take<T>
[src]
fn grow_buf(&mut self) -> Result<&[u8]>
[src]
Grows the internal buffer of this object by at least one byte, returning the buffer contents. Read more
fn fill_buf_min(&mut self, size: usize) -> Result<&[u8]>
[src]
Fills the internal buffer to at least the specified amount, returning the buffer contents. Read more
fn read_until2(&mut self, delims: (u8, u8), buf: &mut Vec<u8>) -> Result<()>
[src]
Read all bytes into a buffer until two consecutive delimiters are reached. Read more
fn skip_until2(&mut self, delims: (u8, u8)) -> Result<()>
[src]
Skip all bytes until two consecutive delimiters are reached. Read more
fn decode_utf8(self) -> Utf8Reader<Self> where
Self: Sized,
[src]
Self: Sized,
impl<T: Write> Write for Take<T>
[src]
fn write(&mut self, buf: &[u8]) -> Result<usize>
[src]
Write a buffer into this object, returning how many bytes were written. Read more
fn flush(&mut self) -> Result<()>
[src]
Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more
fn write_all<R: ?Sized>(&mut self, buf: &mut R) -> Result<()> where
Self: Sized,
R: BufRead,
[src]
Self: Sized,
R: BufRead,
Attempts to write an entire buffer into this write. Read more