[][src]Struct futures::io::AllowStdIo

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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Important traits for AllowStdIo<T>

Creates a new AllowStdIo from an existing IO object.

Important traits for &'a mut I

Returns a reference to the contained IO object.

Important traits for &'a mut I

Returns a mutable reference to the contained IO object.

Consumes self and returns the contained IO object.

Trait Implementations

impl<T> Eq for AllowStdIo<T> where
    T: Eq
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impl<T> AsyncRead for AllowStdIo<T> where
    T: Read
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Attempt to read from the AsyncRead into buf. Read more

Determines if this AsyncReader can work with buffers of uninitialized memory. Read more

Attempt to read from the AsyncRead into vec using vectored IO operations. Read more

impl<T> AsyncWrite for AllowStdIo<T> where
    T: Write
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Attempt to write bytes from buf into the object. Read more

Attempt to flush the object, ensuring that any buffered data reach their destination. Read more

Attempt to close the object. Read more

Attempt to write bytes from vec into the object using vectored IO operations. Read more

impl<T> PartialOrd<AllowStdIo<T>> for AllowStdIo<T> where
    T: PartialOrd<T>, 
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This method returns an ordering between self and other values if one exists. Read more

This method tests less than (for self and other) and is used by the < operator. Read more

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

This method tests greater than (for self and other) and is used by the > operator. Read more

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

impl<T> Write for AllowStdIo<T> where
    T: Write
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Write a buffer into this object, returning how many bytes were written. Read more

Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more

Attempts to write an entire buffer into this write. Read more

Writes a formatted string into this writer, returning any error encountered. Read more

Important traits for &'a mut I

Creates a "by reference" adaptor for this instance of Write. Read more

impl<T> Ord for AllowStdIo<T> where
    T: Ord
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This method returns an Ordering between self and other. Read more

Compares and returns the maximum of two values. Read more

Compares and returns the minimum of two values. Read more

impl<T> PartialEq<AllowStdIo<T>> for AllowStdIo<T> where
    T: PartialEq<T>, 
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This method tests for self and other values to be equal, and is used by ==. Read more

This method tests for !=.

impl<T> Debug for AllowStdIo<T> where
    T: Debug
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Formats the value using the given formatter. Read more

impl<T> Copy for AllowStdIo<T> where
    T: Copy
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impl<T> Clone for AllowStdIo<T> where
    T: Clone
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Important traits for AllowStdIo<T>

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

impl<T> Read for AllowStdIo<T> where
    T: Read
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Pull some bytes from this source into the specified buffer, returning how many bytes were read. Read more

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

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

Read the exact number of bytes required to fill buf. Read more

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

Determines if this Reader can work with buffers of uninitialized memory. Read more

Important traits for &'a mut I

Creates a "by reference" adaptor for this instance of Read. Read more

Important traits for Bytes<R>

Transforms this Read instance to an [Iterator] over its bytes. Read more

Important traits for Chain<T, U>

Creates an adaptor which will chain this stream with another. Read more

Important traits for Take<T>

Creates an adaptor which will read at most limit bytes from it. Read more

impl<T> Hash for AllowStdIo<T> where
    T: Hash
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Feeds this value into the given [Hasher]. Read more

Feeds a slice of this type into the given [Hasher]. Read more

Auto Trait Implementations

impl<T> Send for AllowStdIo<T> where
    T: Send

impl<T> Sync for AllowStdIo<T> where
    T: Sync

Blanket Implementations

impl<T> From for T
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Performs the conversion.

impl<T, U> TryFrom for T where
    T: From<U>, 
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🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<T, U> TryInto for T where
    U: TryFrom<T>, 
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🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<T, U> Into for T where
    U: From<T>, 
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Performs the conversion.

impl<T> Borrow for T where
    T: ?Sized
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Important traits for &'a mut I

Immutably borrows from an owned value. Read more

impl<T> BorrowMut for T where
    T: ?Sized
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Important traits for &'a mut I

Mutably borrows from an owned value. Read more

impl<T> Any for T where
    T: 'static + ?Sized
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🔬 This is a nightly-only experimental API. (get_type_id)

this method will likely be replaced by an associated static

Gets the TypeId of self. Read more

impl<T> ToOwned for T where
    T: Clone
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Creates owned data from borrowed data, usually by cloning. Read more

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

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<R> AsyncReadExt for R where
    R: AsyncRead + ?Sized
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Creates a future which copies all the bytes from one object to another. Read more

Tries to read some bytes directly into the given buf in asynchronous manner, returning a future type. Read more

Creates a future which will read exactly enough bytes to fill buf, returning an error if end of file (EOF) is hit sooner. Read more

Creates a future which will read all the bytes from this AsyncRead. Read more

Helper method for splitting this read/write object into two halves. Read more

impl<W> AsyncWriteExt for W where
    W: AsyncWrite + ?Sized
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Creates a future which will entirely flush this AsyncWrite. Read more

Creates a future which will entirely close this AsyncWrite.

Write data into this object. Read more