Struct `InspectWriter`

struct InspectWriter<W, F> { ... }

An adapter that lets you inspect the data that's being written.

This is useful for things like hashing data as it's written out.

Implementations

`impl<W, F> InspectWriter<W, F>`

fn new(writer: W, f: F) -> InspectWriter<W, F> where W: AsyncWrite, F: FnMut(&[u8])

Create a new InspectWriter, wrapping write and calling f for the data successfully written by each write call.

The closure f will never be called with an empty slice. A vectored write can result in multiple calls to f - at most one call to f per buffer supplied to poll_write_vectored.

fn into_inner(self: Self) -> W

Consumes the InspectWriter, returning the wrapped writer

`impl<'__pin, W, F> Unpin for InspectWriter<W, F>`

`impl<R> AsyncReadExt for InspectWriter<W, F>`

`impl<T> Any for InspectWriter<W, F>`

fn type_id(self: &Self) -> TypeId

`impl<T> Borrow for InspectWriter<W, F>`

fn borrow(self: &Self) -> &T

`impl<T> BorrowMut for InspectWriter<W, F>`

fn borrow_mut(self: &mut Self) -> &mut T

`impl<T> From for InspectWriter<W, F>`

fn from(t: T) -> T: Returns the argument unchanged.

`impl<T, U> Into for InspectWriter<W, F>`

fn into(self: Self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

`impl<T, U> TryFrom for InspectWriter<W, F>`

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

`impl<T, U> TryInto for InspectWriter<W, F>`

fn try_into(self: Self) -> Result<U, <U as TryFrom<T>>::Error>

`impl<W> AsyncWriteExt for InspectWriter<W, F>`

`impl<W, F> Freeze for InspectWriter<W, F>`

`impl<W, F> RefUnwindSafe for InspectWriter<W, F>`

`impl<W, F> Send for InspectWriter<W, F>`

`impl<W, F> Sync for InspectWriter<W, F>`

`impl<W, F> UnsafeUnpin for InspectWriter<W, F>`

`impl<W, F> UnwindSafe for InspectWriter<W, F>`

`impl<W: AsyncRead, F> AsyncRead for InspectWriter<W, F>`

fn poll_read(self: Pin<&mut Self>, cx: &mut Context<'_>, buf: &mut ReadBuf<'_>) -> Poll<Result<()>>

`impl<W: AsyncWrite, F: FnMut(&[u8])> AsyncWrite for InspectWriter<W, F>`

fn poll_write(self: Pin<&mut Self>, cx: &mut Context<'_>, buf: &[u8]) -> Poll<Result<usize>>
fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<()>>
fn poll_shutdown(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<()>>
fn poll_write_vectored(self: Pin<&mut Self>, cx: &mut Context<'_>, bufs: &[IoSlice<'_>]) -> Poll<Result<usize>>
fn is_write_vectored(self: &Self) -> bool