Trait futures_util::io::AsyncReadExt [−] [src]

pub trait AsyncReadExt: AsyncRead {
    fn copy_into<W>(self, writer: W) -> CopyInto<Self, W>
    where
        W: AsyncWrite,
        Self: Sized,
    { ... }

    fn read<T>(self, buf: T) -> Read<Self, T>
    where
        T: AsMut<[u8]>,
        Self: Sized,
    { ... }

    fn read_exact<T>(self, buf: T) -> ReadExact<Self, T>
    where
        T: AsMut<[u8]>,
        Self: Sized,
    { ... }

    fn read_to_end(self, buf: Vec<u8>) -> ReadToEnd<Self>
    where
        Self: Sized,
    { ... }

    fn split(self) -> (ReadHalf<Self>, WriteHalf<Self>)
    where
        Self: AsyncWrite + Sized,
    { ... }
}

An extension trait which adds utility methods to AsyncRead types.

Provided Methods

Creates a future which copies all the bytes from one object to another.

The returned future will copy all the bytes read from this AsyncRead into the writer specified. This future will only complete once the reader has hit EOF and all bytes have been written to and flushed from the writer provided.

On success the number of bytes is returned and this AsyncRead and writer are consumed. On error the error is returned and the I/O objects are consumed as well.

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

The returned future will resolve to both the I/O stream and the buffer as well as the number of bytes read once the read operation is completed.

Creates a future which will read exactly enough bytes to fill buf, returning an error if EOF is hit sooner.

The returned future will resolve to both the I/O stream as well as the buffer once the read operation is completed.

In the case of an error the buffer and the object will be discarded, with the error yielded. In the case of success the object will be destroyed and the buffer will be returned, with all data read from the stream appended to the buffer.

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

In the case of an error the buffer and the object will be discarded, with the error yielded. In the case of success the object will be destroyed and the buffer will be returned, with all data read from the stream appended to the buffer.

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

The two halves returned implement the Read and Write traits, respectively.

Implementors