io-streams- Simple, composable, and easy-to-use stream I/O

Safe HaskellNone




Stream utilities for working with concurrent channels.


Channel conversions

inputToChan :: InputStream a -> Chan (Maybe a) -> IO ()Source

Writes the contents of an input stream to a channel until the input stream yields end-of-stream.

chanToInput :: Chan (Maybe a) -> IO (InputStream a)Source

Turns a Chan into an input stream.

chanToOutput :: Chan (Maybe a) -> IO (OutputStream a)Source

Turns a Chan into an output stream.

concurrentMerge :: [InputStream a] -> IO (InputStream a)Source

Concurrently merges a list of InputStreams, combining values in the order they become available.

Note: does not forward individual end-of-stream notifications, the produced stream does not yield end-of-stream until all of the input streams have finished.

This traps exceptions in each concurrent thread and re-raises them in the current thread.