threadWaitRead -is:exact

threadWaitRead :: Fd -> IO ()

base Control.Concurrent GHC.Conc GHC.Conc.IO, protolude Protolude, base-prelude BasePrelude, ghc-internal GHC.Internal.Conc.IO, rebase Rebase.Prelude, context Context.Concurrent

Block the current thread until data is available to read on the given file descriptor (GHC only). This will throw an IOError if the file descriptor was closed while this thread was blocked. To safely close a file descriptor that has been used with threadWaitRead, use closeFdWith.

threadWaitRead :: MonadIO m => Fd -> m ()

unliftio UnliftIO.Concurrent, rio RIO

Lifted version of threadWaitRead.

threadWaitRead :: MonadBase IO m => Fd -> m ()

lifted-base Control.Concurrent.Lifted

Generalized version of threadWaitRead.

threadWaitReadSTM :: Fd -> IO (STM (), IO ())

base Control.Concurrent GHC.Conc GHC.Conc.IO, protolude Protolude, base-prelude BasePrelude, ghc-internal GHC.Internal.Conc.IO, rebase Rebase.Prelude, context Context.Concurrent

Returns an STM action that can be used to wait for data to read from a file descriptor. The second returned value is an IO action that can be used to deregister interest in the file descriptor.

threadWaitReadPty :: Pty -> IO ()

posix-pty System.Posix.Pty

Equivalent to threadWaitRead.

threadWaitReadPtySTM :: Pty -> IO (STM (), IO ())

posix-pty System.Posix.Pty

Equivalent to threadWaitReadSTM.