Control.Concurrent.Chan.Split

Chan pairs

data InChan i

The "write side" of a chan pair

Instances

Typeable1 InChan

NewSplitChan InChan OutChan

SplitChan InChan OutChan

Eq (InChan i)

data OutChan i

The "read side" of a chan pair

Instances

Typeable1 OutChan

NewSplitChan InChan OutChan

SplitChan InChan OutChan

Eq (OutChan i)

Utility functions:

getChanContents :: OutChan a -> IO [a]

Return a lazy list representing the contents of the supplied OutChan, much like System.IO.hGetContents.

dupChan :: OutChan a -> IO (OutChan a)

Duplicate an OutChan: the duplicate channel contains any unread messages in the original (n.b. this differs from the behavior of dupChan in Chan), and data written to the corresponding InChan will appear in both, i.e. consuming a value from the copy will have no affect on the values in the original OutChan.

(Note that a duplicated channel is not equal to its original. So: fmap (c /=) $ dupChan c returns True for all c.)

Supporting module

module Control.Concurrent.Chan.Class