pub struct InspectReader<R, F> { /* private fields */ }
Available on crate feature
io
only.Expand description
An adapter that lets you inspect the data that’s being read.
This is useful for things like hashing data as it’s read in.
Implementations§
Source§impl<R, F> InspectReader<R, F>
impl<R, F> InspectReader<R, F>
Sourcepub fn new(reader: R, f: F) -> InspectReader<R, F>
pub fn new(reader: R, f: F) -> InspectReader<R, F>
Create a new InspectReader
, wrapping reader
and calling f
for the
new data supplied by each read call.
The closure will only be called with an empty slice if the inner reader
returns without reading data into the buffer. This happens at EOF, or if
poll_read
is called with a zero-size buffer.
Sourcepub fn into_inner(self) -> R
pub fn into_inner(self) -> R
Consumes the InspectReader
, returning the wrapped reader
Trait Implementations§
Source§impl<R: AsyncWrite, F> AsyncWrite for InspectReader<R, F>
impl<R: AsyncWrite, F> AsyncWrite for InspectReader<R, F>
Source§fn poll_write(
self: Pin<&mut Self>,
cx: &mut Context<'_>,
buf: &[u8],
) -> Poll<Result<usize, Error>>
fn poll_write( self: Pin<&mut Self>, cx: &mut Context<'_>, buf: &[u8], ) -> Poll<Result<usize, Error>>
Attempt to write bytes from
buf
into the object. Read moreSource§fn poll_flush(
self: Pin<&mut Self>,
cx: &mut Context<'_>,
) -> Poll<Result<(), Error>>
fn poll_flush( self: Pin<&mut Self>, cx: &mut Context<'_>, ) -> Poll<Result<(), Error>>
Attempts to flush the object, ensuring that any buffered data reach
their destination. Read more
Source§fn poll_shutdown(
self: Pin<&mut Self>,
cx: &mut Context<'_>,
) -> Poll<Result<(), Error>>
fn poll_shutdown( self: Pin<&mut Self>, cx: &mut Context<'_>, ) -> Poll<Result<(), 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_vectored(
self: Pin<&mut Self>,
cx: &mut Context<'_>,
bufs: &[IoSlice<'_>],
) -> Poll<Result<usize>>
fn poll_write_vectored( self: Pin<&mut Self>, cx: &mut Context<'_>, bufs: &[IoSlice<'_>], ) -> Poll<Result<usize>>
Like
poll_write
, except that it writes from a slice of buffers. Read moreSource§fn is_write_vectored(&self) -> bool
fn is_write_vectored(&self) -> bool
Determines if this writer has an efficient
poll_write_vectored
implementation. Read moreimpl<'__pin, R, F> Unpin for InspectReader<R, F>where
PinnedFieldsOf<__Origin<'__pin, R, F>>: Unpin,
Auto Trait Implementations§
impl<R, F> Freeze for InspectReader<R, F>
impl<R, F> RefUnwindSafe for InspectReader<R, F>where
R: RefUnwindSafe,
F: RefUnwindSafe,
impl<R, F> Send for InspectReader<R, F>
impl<R, F> Sync for InspectReader<R, F>
impl<R, F> UnwindSafe for InspectReader<R, F>where
R: UnwindSafe,
F: UnwindSafe,
Blanket Implementations§
Source§impl<R> AsyncReadExt for R
impl<R> AsyncReadExt for R
Source§fn read<'a>(&'a mut self, buf: &'a mut [u8]) -> Read<'a, Self>where
Self: Unpin,
fn read<'a>(&'a mut self, buf: &'a mut [u8]) -> Read<'a, Self>where
Self: Unpin,
Pulls some bytes from this source into the specified buffer,
returning how many bytes were read. Read more
Source§fn read_buf<'a, B>(&'a mut self, buf: &'a mut B) -> ReadBuf<'a, Self, B>
fn read_buf<'a, B>(&'a mut self, buf: &'a mut B) -> ReadBuf<'a, Self, B>
Pulls some bytes from this source into the specified buffer,
advancing the buffer’s internal cursor. Read more
Source§fn read_exact<'a>(&'a mut self, buf: &'a mut [u8]) -> ReadExact<'a, Self>where
Self: Unpin,
fn read_exact<'a>(&'a mut self, buf: &'a mut [u8]) -> ReadExact<'a, Self>where
Self: Unpin,
Reads the exact number of bytes required to fill
buf
. Read moreSource§fn read_u8(&mut self) -> ReadU8<&mut Self>where
Self: Unpin,
fn read_u8(&mut self) -> ReadU8<&mut Self>where
Self: Unpin,
Reads an unsigned 8 bit integer from the underlying reader. Read more
Source§fn read_i8(&mut self) -> ReadI8<&mut Self>where
Self: Unpin,
fn read_i8(&mut self) -> ReadI8<&mut Self>where
Self: Unpin,
Reads a signed 8 bit integer from the underlying reader. Read more
Source§fn read_u16(&mut self) -> ReadU16<&mut Self>where
Self: Unpin,
fn read_u16(&mut self) -> ReadU16<&mut Self>where
Self: Unpin,
Reads an unsigned 16-bit integer in big-endian order from the
underlying reader. Read more
Source§fn read_i16(&mut self) -> ReadI16<&mut Self>where
Self: Unpin,
fn read_i16(&mut self) -> ReadI16<&mut Self>where
Self: Unpin,
Reads a signed 16-bit integer in big-endian order from the
underlying reader. Read more
Source§fn read_u32(&mut self) -> ReadU32<&mut Self>where
Self: Unpin,
fn read_u32(&mut self) -> ReadU32<&mut Self>where
Self: Unpin,
Reads an unsigned 32-bit integer in big-endian order from the
underlying reader. Read more
Source§fn read_i32(&mut self) -> ReadI32<&mut Self>where
Self: Unpin,
fn read_i32(&mut self) -> ReadI32<&mut Self>where
Self: Unpin,
Reads a signed 32-bit integer in big-endian order from the
underlying reader. Read more
Source§fn read_u64(&mut self) -> ReadU64<&mut Self>where
Self: Unpin,
fn read_u64(&mut self) -> ReadU64<&mut Self>where
Self: Unpin,
Reads an unsigned 64-bit integer in big-endian order from the
underlying reader. Read more
Source§fn read_i64(&mut self) -> ReadI64<&mut Self>where
Self: Unpin,
fn read_i64(&mut self) -> ReadI64<&mut Self>where
Self: Unpin,
Reads an signed 64-bit integer in big-endian order from the
underlying reader. Read more
Source§fn read_u128(&mut self) -> ReadU128<&mut Self>where
Self: Unpin,
fn read_u128(&mut self) -> ReadU128<&mut Self>where
Self: Unpin,
Reads an unsigned 128-bit integer in big-endian order from the
underlying reader. Read more
Source§fn read_i128(&mut self) -> ReadI128<&mut Self>where
Self: Unpin,
fn read_i128(&mut self) -> ReadI128<&mut Self>where
Self: Unpin,
Reads an signed 128-bit integer in big-endian order from the
underlying reader. Read more
Source§fn read_f32(&mut self) -> ReadF32<&mut Self>where
Self: Unpin,
fn read_f32(&mut self) -> ReadF32<&mut Self>where
Self: Unpin,
Reads an 32-bit floating point type in big-endian order from the
underlying reader. Read more
Source§fn read_f64(&mut self) -> ReadF64<&mut Self>where
Self: Unpin,
fn read_f64(&mut self) -> ReadF64<&mut Self>where
Self: Unpin,
Reads an 64-bit floating point type in big-endian order from the
underlying reader. Read more
Source§fn read_u16_le(&mut self) -> ReadU16Le<&mut Self>where
Self: Unpin,
fn read_u16_le(&mut self) -> ReadU16Le<&mut Self>where
Self: Unpin,
Reads an unsigned 16-bit integer in little-endian order from the
underlying reader. Read more
Source§fn read_i16_le(&mut self) -> ReadI16Le<&mut Self>where
Self: Unpin,
fn read_i16_le(&mut self) -> ReadI16Le<&mut Self>where
Self: Unpin,
Reads a signed 16-bit integer in little-endian order from the
underlying reader. Read more
Source§fn read_u32_le(&mut self) -> ReadU32Le<&mut Self>where
Self: Unpin,
fn read_u32_le(&mut self) -> ReadU32Le<&mut Self>where
Self: Unpin,
Reads an unsigned 32-bit integer in little-endian order from the
underlying reader. Read more
Source§fn read_i32_le(&mut self) -> ReadI32Le<&mut Self>where
Self: Unpin,
fn read_i32_le(&mut self) -> ReadI32Le<&mut Self>where
Self: Unpin,
Reads a signed 32-bit integer in little-endian order from the
underlying reader. Read more
Source§fn read_u64_le(&mut self) -> ReadU64Le<&mut Self>where
Self: Unpin,
fn read_u64_le(&mut self) -> ReadU64Le<&mut Self>where
Self: Unpin,
Reads an unsigned 64-bit integer in little-endian order from the
underlying reader. Read more
Source§fn read_i64_le(&mut self) -> ReadI64Le<&mut Self>where
Self: Unpin,
fn read_i64_le(&mut self) -> ReadI64Le<&mut Self>where
Self: Unpin,
Reads an signed 64-bit integer in little-endian order from the
underlying reader. Read more
Source§fn read_u128_le(&mut self) -> ReadU128Le<&mut Self>where
Self: Unpin,
fn read_u128_le(&mut self) -> ReadU128Le<&mut Self>where
Self: Unpin,
Reads an unsigned 128-bit integer in little-endian order from the
underlying reader. Read more
Source§fn read_i128_le(&mut self) -> ReadI128Le<&mut Self>where
Self: Unpin,
fn read_i128_le(&mut self) -> ReadI128Le<&mut Self>where
Self: Unpin,
Reads an signed 128-bit integer in little-endian order from the
underlying reader. Read more
Source§fn read_f32_le(&mut self) -> ReadF32Le<&mut Self>where
Self: Unpin,
fn read_f32_le(&mut self) -> ReadF32Le<&mut Self>where
Self: Unpin,
Reads an 32-bit floating point type in little-endian order from the
underlying reader. Read more
Source§fn read_f64_le(&mut self) -> ReadF64Le<&mut Self>where
Self: Unpin,
fn read_f64_le(&mut self) -> ReadF64Le<&mut Self>where
Self: Unpin,
Reads an 64-bit floating point type in little-endian order from the
underlying reader. Read more
Source§fn read_to_end<'a>(&'a mut self, buf: &'a mut Vec<u8>) -> ReadToEnd<'a, Self>where
Self: Unpin,
fn read_to_end<'a>(&'a mut self, buf: &'a mut Vec<u8>) -> ReadToEnd<'a, Self>where
Self: Unpin,
Reads all bytes until EOF in this source, placing them into
buf
. Read moreSource§impl<W> AsyncWriteExt for Wwhere
W: AsyncWrite + ?Sized,
impl<W> AsyncWriteExt for Wwhere
W: AsyncWrite + ?Sized,
Source§fn write<'a>(&'a mut self, src: &'a [u8]) -> Write<'a, Self>where
Self: Unpin,
fn write<'a>(&'a mut self, src: &'a [u8]) -> Write<'a, Self>where
Self: Unpin,
Writes a buffer into this writer, returning how many bytes were
written. Read more
Source§fn write_vectored<'a, 'b>(
&'a mut self,
bufs: &'a [IoSlice<'b>],
) -> WriteVectored<'a, 'b, Self>where
Self: Unpin,
fn write_vectored<'a, 'b>(
&'a mut self,
bufs: &'a [IoSlice<'b>],
) -> WriteVectored<'a, 'b, Self>where
Self: Unpin,
Source§fn write_buf<'a, B>(&'a mut self, src: &'a mut B) -> WriteBuf<'a, Self, B>
fn write_buf<'a, B>(&'a mut self, src: &'a mut B) -> WriteBuf<'a, Self, B>
Writes a buffer into this writer, advancing the buffer’s internal
cursor. Read more
Source§fn write_all_buf<'a, B>(
&'a mut self,
src: &'a mut B,
) -> WriteAllBuf<'a, Self, B>
fn write_all_buf<'a, B>( &'a mut self, src: &'a mut B, ) -> WriteAllBuf<'a, Self, B>
Attempts to write an entire buffer into this writer. Read more
Source§fn write_all<'a>(&'a mut self, src: &'a [u8]) -> WriteAll<'a, Self>where
Self: Unpin,
fn write_all<'a>(&'a mut self, src: &'a [u8]) -> WriteAll<'a, Self>where
Self: Unpin,
Attempts to write an entire buffer into this writer. Read more
Source§fn write_u8(&mut self, n: u8) -> WriteU8<&mut Self>where
Self: Unpin,
fn write_u8(&mut self, n: u8) -> WriteU8<&mut Self>where
Self: Unpin,
Writes an unsigned 8-bit integer to the underlying writer. Read more
Source§fn write_i8(&mut self, n: i8) -> WriteI8<&mut Self>where
Self: Unpin,
fn write_i8(&mut self, n: i8) -> WriteI8<&mut Self>where
Self: Unpin,
Writes a signed 8-bit integer to the underlying writer. Read more
Source§fn write_u16(&mut self, n: u16) -> WriteU16<&mut Self>where
Self: Unpin,
fn write_u16(&mut self, n: u16) -> WriteU16<&mut Self>where
Self: Unpin,
Writes an unsigned 16-bit integer in big-endian order to the
underlying writer. Read more
Source§fn write_i16(&mut self, n: i16) -> WriteI16<&mut Self>where
Self: Unpin,
fn write_i16(&mut self, n: i16) -> WriteI16<&mut Self>where
Self: Unpin,
Writes a signed 16-bit integer in big-endian order to the
underlying writer. Read more
Source§fn write_u32(&mut self, n: u32) -> WriteU32<&mut Self>where
Self: Unpin,
fn write_u32(&mut self, n: u32) -> WriteU32<&mut Self>where
Self: Unpin,
Writes an unsigned 32-bit integer in big-endian order to the
underlying writer. Read more
Source§fn write_i32(&mut self, n: i32) -> WriteI32<&mut Self>where
Self: Unpin,
fn write_i32(&mut self, n: i32) -> WriteI32<&mut Self>where
Self: Unpin,
Writes a signed 32-bit integer in big-endian order to the
underlying writer. Read more
Source§fn write_u64(&mut self, n: u64) -> WriteU64<&mut Self>where
Self: Unpin,
fn write_u64(&mut self, n: u64) -> WriteU64<&mut Self>where
Self: Unpin,
Writes an unsigned 64-bit integer in big-endian order to the
underlying writer. Read more
Source§fn write_i64(&mut self, n: i64) -> WriteI64<&mut Self>where
Self: Unpin,
fn write_i64(&mut self, n: i64) -> WriteI64<&mut Self>where
Self: Unpin,
Writes an signed 64-bit integer in big-endian order to the
underlying writer. Read more
Source§fn write_u128(&mut self, n: u128) -> WriteU128<&mut Self>where
Self: Unpin,
fn write_u128(&mut self, n: u128) -> WriteU128<&mut Self>where
Self: Unpin,
Writes an unsigned 128-bit integer in big-endian order to the
underlying writer. Read more
Source§fn write_i128(&mut self, n: i128) -> WriteI128<&mut Self>where
Self: Unpin,
fn write_i128(&mut self, n: i128) -> WriteI128<&mut Self>where
Self: Unpin,
Writes an signed 128-bit integer in big-endian order to the
underlying writer. Read more
Source§fn write_f32(&mut self, n: f32) -> WriteF32<&mut Self>where
Self: Unpin,
fn write_f32(&mut self, n: f32) -> WriteF32<&mut Self>where
Self: Unpin,
Writes an 32-bit floating point type in big-endian order to the
underlying writer. Read more
Source§fn write_f64(&mut self, n: f64) -> WriteF64<&mut Self>where
Self: Unpin,
fn write_f64(&mut self, n: f64) -> WriteF64<&mut Self>where
Self: Unpin,
Writes an 64-bit floating point type in big-endian order to the
underlying writer. Read more
Source§fn write_u16_le(&mut self, n: u16) -> WriteU16Le<&mut Self>where
Self: Unpin,
fn write_u16_le(&mut self, n: u16) -> WriteU16Le<&mut Self>where
Self: Unpin,
Writes an unsigned 16-bit integer in little-endian order to the
underlying writer. Read more
Source§fn write_i16_le(&mut self, n: i16) -> WriteI16Le<&mut Self>where
Self: Unpin,
fn write_i16_le(&mut self, n: i16) -> WriteI16Le<&mut Self>where
Self: Unpin,
Writes a signed 16-bit integer in little-endian order to the
underlying writer. Read more
Source§fn write_u32_le(&mut self, n: u32) -> WriteU32Le<&mut Self>where
Self: Unpin,
fn write_u32_le(&mut self, n: u32) -> WriteU32Le<&mut Self>where
Self: Unpin,
Writes an unsigned 32-bit integer in little-endian order to the
underlying writer. Read more
Source§fn write_i32_le(&mut self, n: i32) -> WriteI32Le<&mut Self>where
Self: Unpin,
fn write_i32_le(&mut self, n: i32) -> WriteI32Le<&mut Self>where
Self: Unpin,
Writes a signed 32-bit integer in little-endian order to the
underlying writer. Read more
Source§fn write_u64_le(&mut self, n: u64) -> WriteU64Le<&mut Self>where
Self: Unpin,
fn write_u64_le(&mut self, n: u64) -> WriteU64Le<&mut Self>where
Self: Unpin,
Writes an unsigned 64-bit integer in little-endian order to the
underlying writer. Read more
Source§fn write_i64_le(&mut self, n: i64) -> WriteI64Le<&mut Self>where
Self: Unpin,
fn write_i64_le(&mut self, n: i64) -> WriteI64Le<&mut Self>where
Self: Unpin,
Writes an signed 64-bit integer in little-endian order to the
underlying writer. Read more
Source§fn write_u128_le(&mut self, n: u128) -> WriteU128Le<&mut Self>where
Self: Unpin,
fn write_u128_le(&mut self, n: u128) -> WriteU128Le<&mut Self>where
Self: Unpin,
Writes an unsigned 128-bit integer in little-endian order to the
underlying writer. Read more
Source§fn write_i128_le(&mut self, n: i128) -> WriteI128Le<&mut Self>where
Self: Unpin,
fn write_i128_le(&mut self, n: i128) -> WriteI128Le<&mut Self>where
Self: Unpin,
Writes an signed 128-bit integer in little-endian order to the
underlying writer. Read more
Source§fn write_f32_le(&mut self, n: f32) -> WriteF32Le<&mut Self>where
Self: Unpin,
fn write_f32_le(&mut self, n: f32) -> WriteF32Le<&mut Self>where
Self: Unpin,
Writes an 32-bit floating point type in little-endian order to the
underlying writer. Read more
Source§fn write_f64_le(&mut self, n: f64) -> WriteF64Le<&mut Self>where
Self: Unpin,
fn write_f64_le(&mut self, n: f64) -> WriteF64Le<&mut Self>where
Self: Unpin,
Writes an 64-bit floating point type in little-endian order to the
underlying writer. Read more
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
Source§impl<T> TokioAsyncReadCompatExt for Twhere
T: AsyncRead,
impl<T> TokioAsyncReadCompatExt for Twhere
T: AsyncRead,
Source§impl<T> TokioAsyncWriteCompatExt for Twhere
T: AsyncWrite,
impl<T> TokioAsyncWriteCompatExt for Twhere
T: AsyncWrite,
Source§fn compat_write(self) -> Compat<Self>where
Self: Sized,
fn compat_write(self) -> Compat<Self>where
Self: Sized,
Available on crate feature
compat
only.Wraps
self
with a compatibility layer that implements
futures_io::AsyncWrite
.