Should impl AsyncRead for std::io::Read?

[infogulch]

This would allow Chaining Reads with AsyncReads. This could be useful when the source data is nontrivial (e.g. more than just a &[u8]) but it's generation is compute-bound not io-bound.

[Darksonn]

Converting a std::io::Read into an AsyncRead is quite a complicated process. For example, the tokio::fs::File type does this, and its pretty complicated.

[infogulch]

Why? I don't think meticulously translating a blocking system api into async is on the table here. I'm just looking for the trivial implementation that entirely ignores Context and Poll::Pending and just passes through any call to poll_read to the underlying impl Read::read.

[Darksonn]

We don't provide that because its a major footgun if used with a blocking Read, but you can trivially write a wrapper yourself.

[infogulch]

Fair enough.