cancel-rw

Crate that provides a newtype that makes any synchronous Read, Write or Seek into a cancellable.

Its use case is to be able to cancel synchronous operation that are usually short lived, and not async. Sometimes these sync operations may take quite some time, and the program needs to be able to cancel it. If it were async that would be trivial, but being all sync reads and writes, it must be run to completions.

Sometimes with io, you can just close the underlying socket or file and hope for a quick error. But in the general case that is not so easy.