hGetBufNonBlocking still blocks on windows
Summary
The hGetBufNonBlocking
function still blocks in powershell on windows even if hSetBuffering stdin NoBuffering
is used.
Steps to reproduce
PS C:\Users\Jaro> ghci +RTS --io-manager=native
GHCi, version 9.0.2: https://www.haskell.org/ghc/ :? for help
ghci> import Foreign.Marshal.Alloc
ghci> import System.IO
ghci> hSetBuffering stdin NoBuffering
ghci> buf <- mallocBytes 100
ghci> hGetBufNonBlocking stdin buf 100
This blocks until I press at least one key (or until a console event happens).
Expected behavior
I expect hGetBufNonBlocking
to never block. I don't even really expect to block with other buffering modes. I still need to test how it behaves on Linux, but it should match that behavior.
Environment
- GHC version used: 9.0.2
Optional:
- Operating System: Windows 10
- System Architecture: x86_64