Struct tokio_io::io::AllowStdIo
source · pub struct AllowStdIo<T>(_);
Expand description
A simple wrapper type which allows types that 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.
Implementations§
source§impl<T> AllowStdIo<T>
impl<T> AllowStdIo<T>
sourcepub fn into_inner(self) -> T
pub fn into_inner(self) -> T
Consumes self and returns the contained IO object.
Trait Implementations§
source§impl<T> AsyncRead for AllowStdIo<T>where
T: Read,
impl<T> AsyncRead for AllowStdIo<T>where
T: Read,
source§impl<T> AsyncWrite for AllowStdIo<T>where
T: Write,
impl<T> AsyncWrite for AllowStdIo<T>where
T: Write,
source§fn shutdown(&mut self) -> Poll<(), Error>
fn shutdown(&mut self) -> Poll<(), Error>
Initiates or attempts to shut down this writer, returning success when
the I/O connection has completely shut down. Read more
source§fn poll_write(&mut self, buf: &[u8]) -> Poll<usize, Error>
fn poll_write(&mut self, buf: &[u8]) -> Poll<usize, Error>
Attempt to write bytes from
buf
into the object. Read moresource§impl<T: Clone> Clone for AllowStdIo<T>
impl<T: Clone> Clone for AllowStdIo<T>
source§impl<T: Debug> Debug for AllowStdIo<T>
impl<T: Debug> Debug for AllowStdIo<T>
source§impl<T: Hash> Hash for AllowStdIo<T>
impl<T: Hash> Hash for AllowStdIo<T>
source§impl<T: Ord> Ord for AllowStdIo<T>
impl<T: Ord> Ord for AllowStdIo<T>
source§fn cmp(&self, other: &AllowStdIo<T>) -> Ordering
fn cmp(&self, other: &AllowStdIo<T>) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
Compares and returns the maximum of two values. Read more
source§impl<T: PartialEq> PartialEq<AllowStdIo<T>> for AllowStdIo<T>
impl<T: PartialEq> PartialEq<AllowStdIo<T>> for AllowStdIo<T>
source§fn eq(&self, other: &AllowStdIo<T>) -> bool
fn eq(&self, other: &AllowStdIo<T>) -> bool
source§impl<T: PartialOrd> PartialOrd<AllowStdIo<T>> for AllowStdIo<T>
impl<T: PartialOrd> PartialOrd<AllowStdIo<T>> for AllowStdIo<T>
source§fn partial_cmp(&self, other: &AllowStdIo<T>) -> Option<Ordering>
fn partial_cmp(&self, other: &AllowStdIo<T>) -> Option<Ordering>
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for
self
and other
) and is used by the <=
operator. Read moresource§impl<T> Read for AllowStdIo<T>where
T: Read,
impl<T> Read for AllowStdIo<T>where
T: Read,
source§fn read(&mut self, buf: &mut [u8]) -> Result<usize>
fn read(&mut self, buf: &mut [u8]) -> Result<usize>
Pull some bytes from this source into the specified buffer, returning
how many bytes were read. Read more
source§fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize>
fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize>
Read all bytes until EOF in this source, placing them into
buf
. Read moresource§fn read_to_string(&mut self, buf: &mut String) -> Result<usize>
fn read_to_string(&mut self, buf: &mut String) -> Result<usize>
Read all bytes until EOF in this source, appending them to
buf
. Read moresource§fn read_exact(&mut self, buf: &mut [u8]) -> Result<()>
fn read_exact(&mut self, buf: &mut [u8]) -> Result<()>
Read the exact number of bytes required to fill
buf
. Read more1.36.0 · source§fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>
fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>
Like
read
, except that it reads into a slice of buffers. Read moresource§fn is_read_vectored(&self) -> bool
fn is_read_vectored(&self) -> bool
🔬This is a nightly-only experimental API. (
can_vector
)source§fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> Result<(), Error>
fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> Result<(), Error>
🔬This is a nightly-only experimental API. (
read_buf
)Pull some bytes from this source into the specified buffer. Read more
source§fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>
fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>
🔬This is a nightly-only experimental API. (
read_buf
)Read the exact number of bytes required to fill
cursor
. Read more1.0.0 · source§fn by_ref(&mut self) -> &mut Selfwhere
Self: Sized,
fn by_ref(&mut self) -> &mut Selfwhere
Self: Sized,
Creates a “by reference” adaptor for this instance of
Read
. Read moresource§impl<T> Write for AllowStdIo<T>where
T: Write,
impl<T> Write for AllowStdIo<T>where
T: Write,
source§fn write(&mut self, buf: &[u8]) -> Result<usize>
fn write(&mut self, buf: &[u8]) -> Result<usize>
Write a buffer into this writer, returning how many bytes were written. Read more
source§fn flush(&mut self) -> Result<()>
fn flush(&mut self) -> Result<()>
Flush this output stream, ensuring that all intermediately buffered
contents reach their destination. Read more
source§fn write_all(&mut self, buf: &[u8]) -> Result<()>
fn write_all(&mut self, buf: &[u8]) -> Result<()>
Attempts to write an entire buffer into this writer. Read more
source§fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result<()>
fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result<()>
Writes a formatted string into this writer, returning any error
encountered. Read more
source§fn is_write_vectored(&self) -> bool
fn is_write_vectored(&self) -> bool
🔬This is a nightly-only experimental API. (
can_vector
)impl<T: Copy> Copy for AllowStdIo<T>
impl<T: Eq> Eq for AllowStdIo<T>
impl<T> StructuralEq for AllowStdIo<T>
impl<T> StructuralPartialEq for AllowStdIo<T>
Auto Trait Implementations§
impl<T> RefUnwindSafe for AllowStdIo<T>where
T: RefUnwindSafe,
impl<T> Send for AllowStdIo<T>where
T: Send,
impl<T> Sync for AllowStdIo<T>where
T: Sync,
impl<T> Unpin for AllowStdIo<T>where
T: Unpin,
impl<T> UnwindSafe for AllowStdIo<T>where
T: UnwindSafe,
Blanket Implementations§
§impl<R> ReadBytesExt for Rwhere
R: Read + ?Sized,
impl<R> ReadBytesExt for Rwhere
R: Read + ?Sized,
§fn read_u8(&mut self) -> Result<u8, Error>
fn read_u8(&mut self) -> Result<u8, Error>
Reads an unsigned 8 bit integer from the underlying reader. Read more
§fn read_i8(&mut self) -> Result<i8, Error>
fn read_i8(&mut self) -> Result<i8, Error>
Reads a signed 8 bit integer from the underlying reader. Read more
§fn read_u16<T>(&mut self) -> Result<u16, Error>where
T: ByteOrder,
fn read_u16<T>(&mut self) -> Result<u16, Error>where
T: ByteOrder,
Reads an unsigned 16 bit integer from the underlying reader. Read more
§fn read_i16<T>(&mut self) -> Result<i16, Error>where
T: ByteOrder,
fn read_i16<T>(&mut self) -> Result<i16, Error>where
T: ByteOrder,
Reads a signed 16 bit integer from the underlying reader. Read more
§fn read_u24<T>(&mut self) -> Result<u32, Error>where
T: ByteOrder,
fn read_u24<T>(&mut self) -> Result<u32, Error>where
T: ByteOrder,
Reads an unsigned 24 bit integer from the underlying reader. Read more
§fn read_i24<T>(&mut self) -> Result<i32, Error>where
T: ByteOrder,
fn read_i24<T>(&mut self) -> Result<i32, Error>where
T: ByteOrder,
Reads a signed 24 bit integer from the underlying reader. Read more
§fn read_u32<T>(&mut self) -> Result<u32, Error>where
T: ByteOrder,
fn read_u32<T>(&mut self) -> Result<u32, Error>where
T: ByteOrder,
Reads an unsigned 32 bit integer from the underlying reader. Read more
§fn read_i32<T>(&mut self) -> Result<i32, Error>where
T: ByteOrder,
fn read_i32<T>(&mut self) -> Result<i32, Error>where
T: ByteOrder,
Reads a signed 32 bit integer from the underlying reader. Read more
§fn read_u48<T>(&mut self) -> Result<u64, Error>where
T: ByteOrder,
fn read_u48<T>(&mut self) -> Result<u64, Error>where
T: ByteOrder,
Reads an unsigned 48 bit integer from the underlying reader. Read more
§fn read_i48<T>(&mut self) -> Result<i64, Error>where
T: ByteOrder,
fn read_i48<T>(&mut self) -> Result<i64, Error>where
T: ByteOrder,
Reads a signed 48 bit integer from the underlying reader. Read more
§fn read_u64<T>(&mut self) -> Result<u64, Error>where
T: ByteOrder,
fn read_u64<T>(&mut self) -> Result<u64, Error>where
T: ByteOrder,
Reads an unsigned 64 bit integer from the underlying reader. Read more
§fn read_i64<T>(&mut self) -> Result<i64, Error>where
T: ByteOrder,
fn read_i64<T>(&mut self) -> Result<i64, Error>where
T: ByteOrder,
Reads a signed 64 bit integer from the underlying reader. Read more
§fn read_u128<T>(&mut self) -> Result<u128, Error>where
T: ByteOrder,
fn read_u128<T>(&mut self) -> Result<u128, Error>where
T: ByteOrder,
Reads an unsigned 128 bit integer from the underlying reader. Read more
§fn read_i128<T>(&mut self) -> Result<i128, Error>where
T: ByteOrder,
fn read_i128<T>(&mut self) -> Result<i128, Error>where
T: ByteOrder,
Reads a signed 128 bit integer from the underlying reader. Read more
§fn read_uint<T>(&mut self, nbytes: usize) -> Result<u64, Error>where
T: ByteOrder,
fn read_uint<T>(&mut self, nbytes: usize) -> Result<u64, Error>where
T: ByteOrder,
Reads an unsigned n-bytes integer from the underlying reader. Read more
§fn read_int<T>(&mut self, nbytes: usize) -> Result<i64, Error>where
T: ByteOrder,
fn read_int<T>(&mut self, nbytes: usize) -> Result<i64, Error>where
T: ByteOrder,
Reads a signed n-bytes integer from the underlying reader. Read more
§fn read_uint128<T>(&mut self, nbytes: usize) -> Result<u128, Error>where
T: ByteOrder,
fn read_uint128<T>(&mut self, nbytes: usize) -> Result<u128, Error>where
T: ByteOrder,
Reads an unsigned n-bytes integer from the underlying reader.
§fn read_int128<T>(&mut self, nbytes: usize) -> Result<i128, Error>where
T: ByteOrder,
fn read_int128<T>(&mut self, nbytes: usize) -> Result<i128, Error>where
T: ByteOrder,
Reads a signed n-bytes integer from the underlying reader.
§fn read_f32<T>(&mut self) -> Result<f32, Error>where
T: ByteOrder,
fn read_f32<T>(&mut self) -> Result<f32, Error>where
T: ByteOrder,
Reads a IEEE754 single-precision (4 bytes) floating point number from
the underlying reader. Read more
§fn read_f64<T>(&mut self) -> Result<f64, Error>where
T: ByteOrder,
fn read_f64<T>(&mut self) -> Result<f64, Error>where
T: ByteOrder,
Reads a IEEE754 double-precision (8 bytes) floating point number from
the underlying reader. Read more
§fn read_u16_into<T>(&mut self, dst: &mut [u16]) -> Result<(), Error>where
T: ByteOrder,
fn read_u16_into<T>(&mut self, dst: &mut [u16]) -> Result<(), Error>where
T: ByteOrder,
Reads a sequence of unsigned 16 bit integers from the underlying
reader. Read more
§fn read_u32_into<T>(&mut self, dst: &mut [u32]) -> Result<(), Error>where
T: ByteOrder,
fn read_u32_into<T>(&mut self, dst: &mut [u32]) -> Result<(), Error>where
T: ByteOrder,
Reads a sequence of unsigned 32 bit integers from the underlying
reader. Read more
§fn read_u64_into<T>(&mut self, dst: &mut [u64]) -> Result<(), Error>where
T: ByteOrder,
fn read_u64_into<T>(&mut self, dst: &mut [u64]) -> Result<(), Error>where
T: ByteOrder,
Reads a sequence of unsigned 64 bit integers from the underlying
reader. Read more
§fn read_u128_into<T>(&mut self, dst: &mut [u128]) -> Result<(), Error>where
T: ByteOrder,
fn read_u128_into<T>(&mut self, dst: &mut [u128]) -> Result<(), Error>where
T: ByteOrder,
Reads a sequence of unsigned 128 bit integers from the underlying
reader. Read more
§fn read_i8_into(&mut self, dst: &mut [i8]) -> Result<(), Error>
fn read_i8_into(&mut self, dst: &mut [i8]) -> Result<(), Error>
Reads a sequence of signed 8 bit integers from the underlying reader. Read more
§fn read_i16_into<T>(&mut self, dst: &mut [i16]) -> Result<(), Error>where
T: ByteOrder,
fn read_i16_into<T>(&mut self, dst: &mut [i16]) -> Result<(), Error>where
T: ByteOrder,
Reads a sequence of signed 16 bit integers from the underlying
reader. Read more
§fn read_i32_into<T>(&mut self, dst: &mut [i32]) -> Result<(), Error>where
T: ByteOrder,
fn read_i32_into<T>(&mut self, dst: &mut [i32]) -> Result<(), Error>where
T: ByteOrder,
Reads a sequence of signed 32 bit integers from the underlying
reader. Read more
§fn read_i64_into<T>(&mut self, dst: &mut [i64]) -> Result<(), Error>where
T: ByteOrder,
fn read_i64_into<T>(&mut self, dst: &mut [i64]) -> Result<(), Error>where
T: ByteOrder,
Reads a sequence of signed 64 bit integers from the underlying
reader. Read more
§fn read_i128_into<T>(&mut self, dst: &mut [i128]) -> Result<(), Error>where
T: ByteOrder,
fn read_i128_into<T>(&mut self, dst: &mut [i128]) -> Result<(), Error>where
T: ByteOrder,
Reads a sequence of signed 128 bit integers from the underlying
reader. Read more
§fn read_f32_into<T>(&mut self, dst: &mut [f32]) -> Result<(), Error>where
T: ByteOrder,
fn read_f32_into<T>(&mut self, dst: &mut [f32]) -> Result<(), Error>where
T: ByteOrder,
Reads a sequence of IEEE754 single-precision (4 bytes) floating
point numbers from the underlying reader. Read more
§fn read_f32_into_unchecked<T>(&mut self, dst: &mut [f32]) -> Result<(), Error>where
T: ByteOrder,
fn read_f32_into_unchecked<T>(&mut self, dst: &mut [f32]) -> Result<(), Error>where
T: ByteOrder,
👎Deprecated since 1.2.0: please use
read_f32_into
insteadDEPRECATED. Read more
§impl<W> WriteBytesExt for Wwhere
W: Write + ?Sized,
impl<W> WriteBytesExt for Wwhere
W: Write + ?Sized,
§fn write_u8(&mut self, n: u8) -> Result<(), Error>
fn write_u8(&mut self, n: u8) -> Result<(), Error>
Writes an unsigned 8 bit integer to the underlying writer. Read more
§fn write_i8(&mut self, n: i8) -> Result<(), Error>
fn write_i8(&mut self, n: i8) -> Result<(), Error>
Writes a signed 8 bit integer to the underlying writer. Read more
§fn write_u16<T>(&mut self, n: u16) -> Result<(), Error>where
T: ByteOrder,
fn write_u16<T>(&mut self, n: u16) -> Result<(), Error>where
T: ByteOrder,
Writes an unsigned 16 bit integer to the underlying writer. Read more
§fn write_i16<T>(&mut self, n: i16) -> Result<(), Error>where
T: ByteOrder,
fn write_i16<T>(&mut self, n: i16) -> Result<(), Error>where
T: ByteOrder,
Writes a signed 16 bit integer to the underlying writer. Read more
§fn write_u24<T>(&mut self, n: u32) -> Result<(), Error>where
T: ByteOrder,
fn write_u24<T>(&mut self, n: u32) -> Result<(), Error>where
T: ByteOrder,
Writes an unsigned 24 bit integer to the underlying writer. Read more
§fn write_i24<T>(&mut self, n: i32) -> Result<(), Error>where
T: ByteOrder,
fn write_i24<T>(&mut self, n: i32) -> Result<(), Error>where
T: ByteOrder,
Writes a signed 24 bit integer to the underlying writer. Read more
§fn write_u32<T>(&mut self, n: u32) -> Result<(), Error>where
T: ByteOrder,
fn write_u32<T>(&mut self, n: u32) -> Result<(), Error>where
T: ByteOrder,
Writes an unsigned 32 bit integer to the underlying writer. Read more
§fn write_i32<T>(&mut self, n: i32) -> Result<(), Error>where
T: ByteOrder,
fn write_i32<T>(&mut self, n: i32) -> Result<(), Error>where
T: ByteOrder,
Writes a signed 32 bit integer to the underlying writer. Read more
§fn write_u48<T>(&mut self, n: u64) -> Result<(), Error>where
T: ByteOrder,
fn write_u48<T>(&mut self, n: u64) -> Result<(), Error>where
T: ByteOrder,
Writes an unsigned 48 bit integer to the underlying writer. Read more
§fn write_i48<T>(&mut self, n: i64) -> Result<(), Error>where
T: ByteOrder,
fn write_i48<T>(&mut self, n: i64) -> Result<(), Error>where
T: ByteOrder,
Writes a signed 48 bit integer to the underlying writer. Read more
§fn write_u64<T>(&mut self, n: u64) -> Result<(), Error>where
T: ByteOrder,
fn write_u64<T>(&mut self, n: u64) -> Result<(), Error>where
T: ByteOrder,
Writes an unsigned 64 bit integer to the underlying writer. Read more
§fn write_i64<T>(&mut self, n: i64) -> Result<(), Error>where
T: ByteOrder,
fn write_i64<T>(&mut self, n: i64) -> Result<(), Error>where
T: ByteOrder,
Writes a signed 64 bit integer to the underlying writer. Read more
§fn write_u128<T>(&mut self, n: u128) -> Result<(), Error>where
T: ByteOrder,
fn write_u128<T>(&mut self, n: u128) -> Result<(), Error>where
T: ByteOrder,
Writes an unsigned 128 bit integer to the underlying writer.
§fn write_i128<T>(&mut self, n: i128) -> Result<(), Error>where
T: ByteOrder,
fn write_i128<T>(&mut self, n: i128) -> Result<(), Error>where
T: ByteOrder,
Writes a signed 128 bit integer to the underlying writer.
§fn write_uint<T>(&mut self, n: u64, nbytes: usize) -> Result<(), Error>where
T: ByteOrder,
fn write_uint<T>(&mut self, n: u64, nbytes: usize) -> Result<(), Error>where
T: ByteOrder,
Writes an unsigned n-bytes integer to the underlying writer. Read more
§fn write_int<T>(&mut self, n: i64, nbytes: usize) -> Result<(), Error>where
T: ByteOrder,
fn write_int<T>(&mut self, n: i64, nbytes: usize) -> Result<(), Error>where
T: ByteOrder,
Writes a signed n-bytes integer to the underlying writer. Read more
§fn write_uint128<T>(&mut self, n: u128, nbytes: usize) -> Result<(), Error>where
T: ByteOrder,
fn write_uint128<T>(&mut self, n: u128, nbytes: usize) -> Result<(), Error>where
T: ByteOrder,
Writes an unsigned n-bytes integer to the underlying writer. Read more
§fn write_int128<T>(&mut self, n: i128, nbytes: usize) -> Result<(), Error>where
T: ByteOrder,
fn write_int128<T>(&mut self, n: i128, nbytes: usize) -> Result<(), Error>where
T: ByteOrder,
Writes a signed n-bytes integer to the underlying writer. Read more