Struct tokio_io::io::AllowStdIo [] [src]

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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Creates a new AllowStdIo from an existing IO object.

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Returns a reference to the contained IO object.

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Returns a mutable reference to the contained IO object.

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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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Formats the value using the given formatter.

impl<T: Copy> Copy for AllowStdIo<T>
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impl<T: Clone> Clone for AllowStdIo<T>
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Returns a copy of the value. Read more

1.0.0
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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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This method tests for self and other values to be equal, and is used by ==. Read more

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This method tests for !=.

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

1.21.0
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Compares and returns the maximum of two values. Read more

1.21.0
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Compares and returns the minimum of two values. Read more

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

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

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

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

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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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Feeds this value into the given [Hasher]. Read more

1.3.0
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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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Write a buffer into this object, returning how many bytes were written. Read more

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

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

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

1.0.0
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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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Initiates or attempts to shut down this writer, returning success when the I/O connection has completely shut down. Read more

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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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Pull some bytes from this source into the specified buffer, returning how many bytes were read. Read more

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

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

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

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

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

1.0.0
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Creates a "by reference" adaptor for this instance of Read. Read more

1.0.0
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Transforms this Read instance to an [Iterator] over its bytes. Read more

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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

1.0.0
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Creates an adaptor which will chain this stream with another. Read more

1.0.0
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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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Prepares an uninitialized buffer to be safe to pass to read. Returns true if the supplied buffer was zeroed out. Read more

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Pull some bytes from this source into the specified Buf, returning how many bytes were read. Read more

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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

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