Struct tokio_io::io::AllowStdIo
[−]
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pub struct AllowStdIo<T>(_);
A simple wrapper type which allows types which implement only
implement std::io::Read
or std::io::Write
to be used in contexts which expect an AsyncRead
or AsyncWrite
.
If these types issue an error with the kind io::ErrorKind::WouldBlock
,
it is expected that they will notify the current task on readiness.
Synchronous std
types should not issue errors of this kind and
are safe to use in this context. However, using these types with
AllowStdIo
will cause the event loop to block, so they should be used
with care.
Methods
impl<T> AllowStdIo<T>
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fn new(io: T) -> Self
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Creates a new AllowStdIo
from an existing IO object.
fn get_ref(&self) -> &T
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Returns a reference to the contained IO object.
fn get_mut(&mut self) -> &mut T
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Returns a mutable reference to the contained IO object.
fn into_inner(self) -> T
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Consumes self and returns the contained IO object.
Trait Implementations
impl<T: Debug> Debug for AllowStdIo<T>
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impl<T: Copy> Copy for AllowStdIo<T>
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impl<T: Clone> Clone for AllowStdIo<T>
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fn clone(&self) -> AllowStdIo<T>
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Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0[src]
Performs copy-assignment from source
. Read more
impl<T: Eq> Eq for AllowStdIo<T>
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impl<T: PartialEq> PartialEq for AllowStdIo<T>
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fn eq(&self, __arg_0: &AllowStdIo<T>) -> bool
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This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, __arg_0: &AllowStdIo<T>) -> bool
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This method tests for !=
.
impl<T: Ord> Ord for AllowStdIo<T>
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fn cmp(&self, __arg_0: &AllowStdIo<T>) -> Ordering
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This method returns an Ordering
between self
and other
. Read more
fn max(self, other: Self) -> Self
1.21.0[src]
Compares and returns the maximum of two values. Read more
fn min(self, other: Self) -> Self
1.21.0[src]
Compares and returns the minimum of two values. Read more
impl<T: PartialOrd> PartialOrd for AllowStdIo<T>
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fn partial_cmp(&self, __arg_0: &AllowStdIo<T>) -> Option<Ordering>
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This method returns an ordering between self
and other
values if one exists. Read more
fn lt(&self, __arg_0: &AllowStdIo<T>) -> bool
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This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, __arg_0: &AllowStdIo<T>) -> bool
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This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, __arg_0: &AllowStdIo<T>) -> bool
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This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, __arg_0: &AllowStdIo<T>) -> bool
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This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl<T: Hash> Hash for AllowStdIo<T>
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fn hash<__HT: Hasher>(&self, __arg_0: &mut __HT)
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Feeds this value into the given [Hasher
]. Read more
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0[src]
H: Hasher,
Feeds a slice of this type into the given [Hasher
]. Read more
impl<T> Write for AllowStdIo<T> where
T: Write,
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T: Write,
fn write(&mut self, buf: &[u8]) -> Result<usize>
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Write a buffer into this object, returning how many bytes were written. Read more
fn flush(&mut self) -> Result<()>
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Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more
fn write_all(&mut self, buf: &[u8]) -> Result<()>
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Attempts to write an entire buffer into this write. Read more
fn write_fmt(&mut self, fmt: Arguments) -> Result<()>
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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> AsyncWrite for AllowStdIo<T> where
T: Write,
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T: Write,
fn shutdown(&mut self) -> Poll<(), Error>
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Initiates or attempts to shut down this writer, returning success when the I/O connection has completely shut down. Read more
fn write_buf<B: Buf>(&mut self, buf: &mut B) -> Poll<usize, Error> where
Self: Sized,
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Self: Sized,
Write a Buf
into this value, returning how many bytes were written. Read more
impl<T> Read for AllowStdIo<T> where
T: Read,
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T: Read,
fn read(&mut self, buf: &mut [u8]) -> Result<usize>
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Pull some bytes from this source into the specified buffer, returning how many bytes were read. Read more
fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize>
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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>
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Read all bytes until EOF in this source, placing them into buf
. Read more
fn read_exact(&mut self, buf: &mut [u8]) -> Result<()>
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Read the exact number of bytes required to fill buf
. Read more
unsafe fn initializer(&self) -> Initializer
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read_initializer
)Determines if this Read
er can work with buffers of uninitialized memory. 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>
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🔬 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> AsyncRead for AllowStdIo<T> where
T: Read,
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T: Read,
unsafe fn prepare_uninitialized_buffer(&self, buf: &mut [u8]) -> bool
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Prepares an uninitialized buffer to be safe to pass to read
. Returns true
if the supplied buffer was zeroed out. Read more
fn read_buf<B: BufMut>(&mut self, buf: &mut B) -> Poll<usize, Error> where
Self: Sized,
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Self: Sized,
Pull some bytes from this source into the specified Buf
, returning how many bytes were read. Read more
fn framed<T: Encoder + Decoder>(self, codec: T) -> Framed<Self, T> where
Self: AsyncWrite + Sized,
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Self: AsyncWrite + Sized,
Provides a Stream
and Sink
interface for reading and writing to this Io
object, using Decode
and Encode
to read and write the raw data. Read more
fn split(self) -> (ReadHalf<Self>, WriteHalf<Self>) where
Self: AsyncWrite + Sized,
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Self: AsyncWrite + Sized,
Helper method for splitting this read/write object into two halves. Read more