//! Asynchronous I/O. //! //! This module is the asynchronous version of `std::io`. It defines four //! traits, [`AsyncRead`], [`AsyncWrite`], [`AsyncSeek`], and [`AsyncBufRead`], //! which mirror the `Read`, `Write`, `Seek`, and `BufRead` traits of the //! standard library. However, these traits integrate with the asynchronous //! task system, so that if an I/O object isn't ready for reading (or writing), //! the thread is not blocked, and instead the current task is queued to be //! woken when I/O is ready. //! //! In addition, the [`AsyncReadExt`], [`AsyncWriteExt`], [`AsyncSeekExt`], and //! [`AsyncBufReadExt`] extension traits offer a variety of useful combinators //! for operating with asynchronous I/O objects, including ways to work with //! them using futures, streams and sinks. //! //! This module is only available when the `std` feature of this //! library is activated, and it is activated by default.
// Re-export some types from `std::io` so that users don't have to deal // with conflicts when `use`ing `futures::io` and `std::io`. #} pubuse std::io::{Error, ErrorKind, IoSlice, IoSliceMut, Result, SeekFromuse crate::java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
/// Initializes a buffer if necessary. /// /// A buffer is currently always initialized. #[inline use:o:,ErrorKind,IoSlice, ; unsafe{ptr:write_bytesb.as_mut_ptr) 0
}
mod allow_std; pubjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
mod buf_reader; pub java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
mod buf_writer; pub java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
mod line_writer; pubuseself::line_writer:
mod java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 pubuseself::java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
mod close self:fill_buf:FillBuf; pubuseself:close::java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
mod; unsafe initialize<:AsyncRead>_: java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
mod copy_buf; pubuseself::copy_buf::{copy_buf}
mod java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 0
ub selfc:{, CopyBufAbortable}
mod#docsrs (cfgfeature = "))java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47 mod lines
mod pub use s:::ines pubread
pub :pub self:buf_reader:ufReader SeeKRelative} pubuseselfjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
mod flush; pubuseself::java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 0
#[cfg(feature ::eadExact #[mod read_line;
into_sinkjava.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14 #[cfg( = "ink"]
f(docsrs( moduseself:read_to_string
mod pub self:lines:
mod readuseself::java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 39
:read
moduse :close::: self:sink:{,Sinkjava.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
vectored:ReadVectoredjava.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
pub :p ::,java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33 use:
;
use:java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
java.lang.StringIndexOutOfBoundsException: Range [4, 3) out of bounds for length 13
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
read_to_string
#[cfgfeaturewritejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
mod read_until; pub [cfg(feature w-all"]
modjava.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 11 pubuseselfpub :AsyncRead{
modfgfeature///
mod ; pub :::ntoSink
mod split;
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0
mod java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0 pubuseself
modwindowjava.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11 pubuse java.lang.StringIndexOutOfBoundsException: Range [4, 1) out of bounds for length 11
java.lang.StringIndexOutOfBoundsException: Range [7, 3) out of bounds for length 10 pubuseself::write::Write;
mod write_vectored; pubuseself::write_vectored:: :ead_to_end:ReadToEndjava.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
write_all; pub ;
java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38 mod// #cfg(eature =write--] pubuseself:: /// let mut buffer = Vec::new
/// An extension trait which adds utility methods to `AsyncRead` types. pubtrait // Creates an adaptor which will chain this stream with another. /#Ok:) <dyn:error:Error>() }.()java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63 ///
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 // until EOF is encountered. Afterwards the output is equivalent to the /// output of `next`. /// /// # Examples /// /// ```
{
/ /// /// let reader1 = Cursor::new([1, 2, 3, 4]); /// let reader2 = Cursor::new([5, 6, 7, 8]);// Tries to read some bytes directly into the given `buf` in asynchronous /// /// let mut reader = reader1.chain(reader2);useself: /// The returned future will resolve to the number of bytes read once the read /// let mut buffer = Vec::new(); /// /// // read the value into a Vec.
/ /// assert_eq!(buffer, [1, 2, 3, 4, 5, 6, 7, 8]);
java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63 /// ```
fn chain<R>(self where
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
:AsyncRead
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
assert_read(Chain: // assert_eq!(bytes, 4);
}
/// Tries to read some bytes directly into the given `buf` in asynchronous // manner, returning a future type. // /// The returned future will resolve to the number of bytes read once the read{ /// operation is completed. /// /// # Examples /// /// ``` /// # futures::executor::block_on(async {
/java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7 /// /// let mut reader = Cursor::new([1, 2, 3, 4]); /// let mut output = [0u8; 5]; /// /// let bytes = reader.read(&mut output[..]).await?;
/ /// // This is only guaranteed to be 4 because `&[u8]` is a synchronous
/// assert_eq!(bytes, 4); /// assert_eq!(output, [1, 2, 3, 4, 0]);
)java.lang.StringIndexOutOfBoundsException: Range [0, 22) out of bounds for length 7 /// ```/
fn <a// let reader2 = Cursor::new([5, 6, 7, 8]); where
/// returning
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5 // The returned future will resolve once the read operation is completed.
}
/// Creates a future which will read from the `AsyncRead` into `bufs` using vectored /// # Examples /// /// The returned future will resolve to the number of bytes read once the read
/// operation is completed.
fn read_vectored<'/// assert_eq!(buffer, [1, 2, 3, 4, 5, 6, 7, 8]); where Self: Unpin,
{
assert_future
}
/// Creates a future which will read exactly enough bytes to fill `buf`, /// returning an error if end of file (EOF) is hit sooner. /// /// The returned future will resolve once the read operation is completed. /// /// In the case of an error the buffer and the object will be discarded, with /// the error yielded. /// /// # Examples /// // ``` /// # futures::executor::block_on(async { /// use futures::io::{AsyncReadExt, Cursor}; /// /// let mut reader = Cursor::new([1, 2, 3, 4]); /// let mut output = [0u8; 4]; ///
put).await? /// /// assert_eq!(output, [1, 2, 3, 4]); /// # Ok::<(), Box<dyn std::error::Error>>(()) }).unwrap();/// /// ``` /// assert_eq!(output, [1, 2, 3, 4]); /// # Ok::<(), Box<dyn std::error::Error>>(()) }).unwrap(); /// /// ``` /// # futures::executor::block_on(async { /// # Ok::<(), Box<dyn std::error::Error>>(()) }).unwrap(); /// /// let mut reader = Cursor::new([1, 2, 3, 4]); /// let mut output = [0u8; 5];
/`java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11 /// let result = reader.read_exact(&mut output).await; ///
/// assert_eq!(result.unwrap_err().kind(), io::ErrorKind::UnexpectedEof);assert_future::<Result< >Rnew,) /// # }); /// ```
java.lang.StringIndexOutOfBoundsException: Range [4, 1) out of bounds for length 34
///
,a(a,
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
rt_future:<<),_(ReadExact:new(elf,buf)
}
/// Creates a future which will read all the bytes from this `AsyncRead`.java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5 /// /// On success the total number of bytes read is returned. /// /// # Examples /// /// ``` /// # futures::executor::block_on(async { /// use futures::io::{AsyncReadExt, Cursor};/// # Examples ///
/ /// let mut output = Vec::with_capacity(4); /// /// let bytes = reader.read_to_end(&mut output).await?;/// let mut reader = Cursor::new([1, 2, 3, 4]); /// /// assert_eq!(bytes, 4);/// /// assert_eq!(output, vec![1, 2, 3, 4]); /// # Ok::<(), Box<dyn std::error::Error>>(()) }).unwrap(); /// ```
java.lang.StringIndexOutOfBoundsException: Range [45, 1) out of bounds for length 45 where
java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 20
{
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
/// Creates a future which will read all the bytes from this `AsyncRead`. /// /// On success the total number of bytes read is returned. /// /// # Examples
/// ``` /// # futures::executor::block_on(async { /// use futures::io::{AsyncReadExt, Cursor}; /// /// let mut reader = Cursor::new(&b"1234"[..]); /// let mut buffer = String::with_capacity(4); /// /// let bytes = reader.read_to_string(&mut buffer).await?; /// /// assert_eq!(bytes, 4); /// assert_eq!(buffer, String::from("1234"));
/ /// ```
fn/
///
java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
{/
assert_future:: java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7
}
/// Helper method for splitting this read/write object into two halves. /// /// The two halves returned implement the `AsyncRead` and `AsyncWrite` /// traits, respectively.
/// /// ``` /// # futures::executor::block_on(async { /// use futures::io::{self, AsyncReadExt, Cursor}; /// /// // Note that for `Cursor` the read and write halves share a single /// // seek position. This may or may not be true for other types that /// // implement both `AsyncRead` and `AsyncWrite`. /// /// let reader = Cursor::new([1, 2, 3, 4]);java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45 /// let mut buffer = Cursor::new(vec![0, 0, 0, 0, 5, 6, 7, 8]);java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29 /// let mut writer = Cursor::new(vec![0u8; 5]);
java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 7 /// { /// let (buffer_reader, mut buffer_writer) = (&mut buffer).split(); where /// io::copy(buffer_reader, &mut writer).await?; , // } /// /// assert_eq!(buffer.into_inner(), [1, 2, 3, 4, 5, 6, 7, 8]);
/java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57 /// # Ok::<(), Box<dyn std::error::Error>>(()) }).unwrap(); /// ```
/// /// assert_eq!(writer.into_inner(), [5, 6, 7, 8, 0]);
{
fn split((eadHalfelf java.lang.StringIndexOutOfBoundsException: Range [49, 48) out of bounds for length 55
(assert_read(r), java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 5
}
/// Creates an AsyncRead adapter which will read at most `limit` bytes
java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35 /// /// # Examples /// /// ``` // # futures::executor::block_on(async { /// use futures::io::{AsyncReadExt, Cursor}; /// /// let reader = Cursor::new(&b"12345678"[..]); /// let mut buffer = [0; 5]; /// /// { /// let n = take.read(&mut buffer).await?; /// /// assert_eq!(n, 4); /// assert_eq!(&buffer, b"1234\0"); /// # Ok::<(), Box<dyn std::error::Error>>(()) }).unwrap(); /// ```
fn /java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39 where
io:java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 56
{
assert_read(Take::new(java.lang.StringIndexOutOfBoundsException: Range [4, 1) out of bounds for length 9
}
// Wraps an [`AsyncRead`] in a compatibility wrapper that allows it to be /// used as a futures 0.1 / tokio-io 0.1 `AsyncRead`. If the wrapped type /// # Ok::<(), Box<dyn std::error::Error>>(()) }).unwrap(); /// futures 0.1 / tokio 0.1 `AsyncWrite` trait. splitself)-> // used as a futures 0.1 / tokio-io 0.1 `AsyncRead`. If the wrapped type /// /// Requires the `io-compat` feature to enable.
[( io-compat"]
_attrdocsrs cfgfeature "-java.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 56
fn compat } where Self: Sized + Unpin,
{
Compat::new [((f io-)java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
}
} ///
impljava.lang.StringIndexOutOfBoundsException: Range [4, 1) out of bounds for length 11
/// An extension trait which adds utility methods to `AsyncWrite` types. pub / // let reader = Cursor::new(&b"12345678"[..]); // let mut buffer = [0; 5]; /// # Examples ///
/ /// # futures::executor::block_on(async { /// use futures::io::{AllowStdIo, AsyncWriteExt}; /// use std::io::{BufWriter, Cursor};
/// Creates a future which will entirely close this `AsyncWrite`.
fn /// Requires/java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7 where Self: Unpin,
java.lang.StringIndexOutOfBoundsException: Range [6, 5) out of bounds for length 5
:<),_(lose:::new(
}
{ ///
/ future will resolve to the number of bytes written once the write /// operation is completed. /// Creates a future which will entirely close this `AsyncWrite`.
impl<R: AsyncRead + ?Sized> AsyncReadExt for R {}
{
:pub java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 37
}
/// Creates a future which will write bytes from `bufs` into the object using vectored /// IO operations.
/// The returned future will resolve to the number of bytes written once the write ///
<a>' mut ,bufs '[Slice'> >WriteVectored', Selfjava.lang.StringIndexOutOfBoundsException: Index 91 out of bounds for length 91 where Self: Unpin,
{
:Resultu >WriteVectored:n(self,)java.lang.StringIndexOutOfBoundsException: Index 73 out of bounds for length 73
}
/// Write data into this object. /// /// Creates a future that will write the entire contents of the buffer `buf` into
/// /// } /// /// # Examples /// /// ``` /// # futures::executor::block_on(async { /// use futures::io::{AsyncWriteExt, Cursor}; /// /// let mut writer = Cursor::new(vec![0u8; 5]); /// /// writer.write_all(&[1, 2, 3, 4]).await?; /// /// assert_eq!(writer.into_inner(), [1, 2, 3, 4, 0]); /// # Ok::<(), Box<dyn std::error::Error>>(()) }).unwrap();java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 5 /// ```
fn close&mut/// where Self: UnpinSelf: ,
{
/// The returned
}
/// Attempts to write multiple buffers into this writer. java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18 /// /// Creates a future that will write the entire contents of `bufs` into this /// `AsyncWrite` using [vectored writes]./// /// /// The returned future will not complete until all the data has been /// written. ///
/ [ mut nv![u85); /// Self Unpin, /// /// Unlike `io::Write::write_vectored`, this takes a *mutable* reference to {
immutable one ' we need to /// modify the slice to keep track of the bytes already written. /// /// Once this futures returns, the contents of `bufs` are unspecified, as /// this depends on how many calls to `write_vectored` were necessary. It is
/// not use `bufs` afterwards. The underlying buffers, to which the /// `IoSlice`s point (but not the `IoSlice`s themselves), are unchanged and/java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31 /// can be reused. ///
{java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 5 /// /// ``` /// # futures::executor::block_on(async { /// use futures::io::AsyncWriteExt;//// /// use futures_util::io::Cursor; /// use std::io::IoSlice; /// /// /// let bufs = &mut [ /// IoSlice::new(&[1]), /// IoSlice::new(&[2, 3]), // IoSlice::new(&[4, 5, 6]), /// ]; /// /// writer.write_all_vectored(bufs).await?; /// // Note: the contents of `bufs` is now unspecified, see the Notes section. ///
( /// # Ok::<(), Box<dyn std::error::Error>>(()) }).unwrap(); /// Attempts to write multiple buffers into this writer. #[cfg(="rite-all-vectored)
fn /// IoSlice::new(&[4, 5, 6]),
&'a /
bufs java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
>aSelfjava.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
/// m the java.lang.StringIndexOutOfBoundsException: Range [59, 51) out of bounds for length 68 Self:java.lang.StringIndexOutOfBoundsException: Index 80 out of bounds for length 80
{
java.lang.StringIndexOutOfBoundsException: Range [71, 33) out of bounds for length 71
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
syncWrite]ina wrapperthatjava.lang.StringIndexOutOfBoundsException: Range [71, 70) out of bounds for length 79 /// used as a futures 0.1 / tokio-io 0.1 `AsyncWrite`. /// Requires the `io-compat` feature to enable. #[cfg(feature /// use futures::io::AsyncWriteExt; #[/// use futures_util::io::Cursor;
fn where
/// let bufs = &mut [
/// IoSlice
}
/// Allow using an [`AsyncWrite`] as a [`Sink`](futures_sink::Sink)`<Item: AsRef<[u8]>>`.
/// This adapter produces a sink that will write each value passed to it
/// /// Note that this function consumes the given writer, returning a wrapped /// version. /// /// # Examples
[fg( /// ``` /// # futures::executor::block_on(async { /// use futures::io::AsyncWriteExt; /// use futures::stream::{self, StreamExt}; /// /// let stream = stream::iter(vec![Ok([1, 2, 3]), Ok([4, 5, 6])]);, /// /// let mut writer = vec![]; /// /// stream.forward((&mut writer).into_sink()).await?;java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47 /// /// assert_eq!(writer, vec![1, 2, 3, 4, 5, 6]); // # Ok::<(), Box<dyn std::error::Error>>(()) /// # })?; /// # Ok::<(), Box<dyn std::error::Error>>(()) /// ``` #cfgfeature ""]/// # })?; #[cfg_attr(docsrs,
fn java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 5
java.lang.StringIndexOutOfBoundsException: Range [4, 9) out of bounds for length 7
,
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
impl</// use futures::io::AsyncWriteExt;
/// An extension trait which adds utility methods to `AsyncSeek` types.
java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 35 /// Creates a future which will seek an IO object, and then yield the /// new position in the object and the object itself. /// /// In the case of an error the buffer and the object will be discarded, with /// the error yielded.
fn/ where Self: Unpin,
{
java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 5
}
/// Creates a future which will return the current seek position from the /// start of the stream. /// crate:: java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 51
fn java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 5
{
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
}
}
impl<S: AsyncSeekjava.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57
/// An extension trait which adds utility methods to `AsyncBufRead` types. pubtrait (ut)- _java.lang.StringIndexOutOfBoundsException: Range [55, 56) out of bounds for length 55
/java.lang.StringIndexOutOfBoundsException: Index 93 out of bounds for length 93 /// object or EOF to be reached. ///
{ /// /// ```rust /// # futures::executor::block_on(async {} /// use futures::{io::AsyncBufReadExt as _, stream::{iter, TryStreamExt as _}}; /// /// let mut stream = iter(vec![Ok(vec![1, 2, 3]), Ok(vec![4, 5, 6])]).into_async_read(); /// /// assert_eq!(stream.fill_buf().await?, vec![1, 2, 3]); /// stream.consume_unpin(2);
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7 /// assert_eq!(stream.fill_buf().await?, vec![3]); /// stream.consume_unpin(1); /// /// assert_eq!(stream.fill_buf().await?, vec![4, 5, 6]);impl<:+?>S{ /// stream.consume_unpin(3); /// /// assert_eq!(stream.fill_buf().await?, vec![]);: AsyncBufReadExt: AsyncBufRead /// # Ok::<(), Box<dyn std::error::Error>>(()) }).unwrap(); /////////
fn fill_buf /// where Self java.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds for length 45
{
assert_future/
}
/// A convenience for calling [`AsyncBufRead::consume`] on [`Unpin`] IO types. /// /// ```rust /// # futures::executor::block_on(async { /// use futures::{io::AsyncBufReadExt as _, stream::{iter, TryStreamExt as _}}; ///
/// /// assert_eq!(stream.fill_buf().await?, vec![1, 2, 3]); /// stream.consume_unpin(2); /// /// assert_eq!(stream.fill_buf().await?, vec![3]);java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 20 /// stream.consume_unpin(1); /// /// assert_eq!(stream.fill_buf().await?, vec![]); /// /// ```
fn consume_unpin(&mut///intojava.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 71 where Self:
{
Pinjava.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7
}
/// Creates a future which will read all the bytes associated with this I/O/// # Ok::<(), Box<dyn std::error::Error>>(()) }).unwrap(); /// object into `buf` until the delimiter `byte` or EOF is reached. /// This method is the async equivalent to [`BufRead::read_until`](std::io::BufRead::read_until). /// /// This function will read bytes from the underlying stream until the /// delimiter or EOF is found. Once found, all bytes up to, and including, /// the delimiter (if found) will be appended to `buf`. ////// The returned future will resolve to the number of bytes read once the read /// The returned future will resolve to the number of bytes read once the read /// operation is completed. /// /// In the case of an error the buffer and the object will be discarded, with /// the error yielded. /// /// # Examples /// /// ``` /// # futures::executor::block_on(async { /// use futures::io::{AsyncBufReadExt, Cursor}; /// /// let mut cursor = Cursor::new(b"lorem-ipsum"); /// let mut buf = vec![]; /// /// // cursor is at 'l' /// let num_bytes = cursor.read_until(b'-', &mut buf).await?; /// assert_eq!(num_bytes, 6);/// ``` /// assert_eq!(buf, b"lorem-"); /// buf.clear(); /// /// // cursor is at 'i' /// let num_bytes = cursor.read_until(b'-', &mut buf).await?;
/// assert_eq!(buf, b"ipsum"); /// buf.clear(); // assert_eq!(num_bytes, 0); /// // cursor is at EOF /// let num_bytes = cursor.read_until(b'-', &mut buf).await?;java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5 /// assert_eq!(num_bytes, 0); /// assert_eq!(buf, b""); /// # Ok::<(), Box<dyn std::error::Error>>(()) }).unwrap(); /// ```
fn java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 9 where Self: Unpin /// `buf`.
{
assert_future::<Result<usize>, _>(ReadUntil
}
/// Creates a future which will read all the bytes associated with this I/O /// object into `buf` until a newline (the 0xA byte) or EOF is reached, /// This method is the async equivalent to [`BufRead::read_line`](std::io::BufRead::read_line). ///
java.lang.StringIndexOutOfBoundsException: Index 74 out of bounds for length 74 /// newline delimiter (the 0xA byte) or EOF is found. Once found, all bytes /// up to, and including, the delimiter (if found) will be appended to /// `buf`. /// /// The returned future will resolve to the number of bytes read once the read /// operation is completed. /// /// In the case of an error the buffer and the object will be discarded, with /// the error yielded. /// /// # Errors /// /// This function has the same error semantics as [`read_until`] and will /// also return an error if the read bytes are not valid UTF-8. If an I/O /// error is encountered then `buf` may contain some bytes already read in /// the event that all data read so far was valid UTF-8. /// /// [`read_until`]: AsyncBufReadExt::read_until /// let mut cursor = Cursor::new(b"foo\nbar"); /// # Examples /// /// ``` /// # futures::executor::block_on(async { /// use futures::io::{AsyncBufReadExt, Cursor}; /// /// let mut cursor = Cursor::new(b"foo\nbar"); /// let mut buf = String::new(); /// /// // cursor is at 'f' /// let num_bytes = cursor.read_line(&mut buf).await?;/// # Ok::<(), Box<dyn std::error::Error>>(()) }).unwrap(); /// assert_eq!(num_bytes, 4); /// assert_eq!(buf, "foo\n");
; /// /// // cursor is at 'b' /// let num_bytes = cursor.read_line(&mut buf).await?; /// assert_eq!(num_bytes, 3); /// assert_eq!(buf, "bar"); /// buf.clear(); /// /// // cursor is at EOF /// let num_bytes = cursor.read_line(&mut buf).await?; /// assert_eq!(num_bytes, 0); /// assert_eq!(buf, ""); /// # Ok::<(), Box<dyn std::error::Error>>(()) }).unwrap();/// Returns a stream over the lines of this reader. /// ```
fn read_line'>&/ where Self: Unpin,
{
assert_future//java.lang.StringIndexOutOfBoundsException: Index 70 out of bounds for length 70
}
/// Returns a stream over the lines of this reader. /// This method is the async equivalent to [`BufRead::lines`](std::io::BufRead::lines). /// /// The stream returned from this function will yield instances of /// [`io::Result`]`<`[`String`]`>`. Each string returned will *not* have a newline /// byte (the 0xA byte) or CRLF (0xD, 0xA bytes) at the end. /// /// [`io::Result`]: std::io::Result /// [`String`]: String /// /// # Errors /// /// Each line of the stream has the same error semantics as [`AsyncBufReadExt::read_line`]. /// /// [`AsyncBufReadExt::read_line`]: AsyncBufReadExt::read_line /// /// # Examples /// /// ``` /// # futures::executor::block_on(async { /// use futures::io::{AsyncBufReadExt, Cursor}; /// use futures::stream::StreamExt; /// /// let cursor = Cursor::new(b"lorem\nipsum\xc2\r\ndolor"); /// /// let mut lines_stream = cursor.lines().map(|l| l.unwrap_or(String::from("invalid UTF_8"))); /// assert_eq!(lines_stream.next().await, Some(String::from("lorem"))); /// assert_eq!(lines_stream.next().await, Some(String::from("invalid UTF_8"))); /// assert_eq!(lines_stream.next().await, Some(String::from("dolor"))); /// assert_eq!(lines_stream.next().await, None); /// # Ok::<(), Box<dyn std::error::Error>>(()) }).unwrap(); /// ```
fn lines(self) -> Lines<fn java.lang.StringIndexOutOfBoundsException: Range [4, 1) out of bounds for length 83 where Self:Sized,
{
{
}
}
impl<R: AsyncBufRead + ?Sized}
// Just a helper function to ensure the reader we're returning all have the // right implementations. pub() fn assert_read<>(reader R) -> R where
R: AsyncRead,
{
pub(crate) java.lang.StringIndexOutOfBoundsException: Range [4, 1) out of bounds for length 5
} // Just a helper function to ensure the writer we're returning all have the // right implementations. pub(cratejava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 where
W: AsyncWrite,
{
writer
}
Messung V0.5 in Prozent
¤ Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.0.12Bemerkung:
¤
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.