Control.Concurrent.Chan.Class

Documentation

class SplitChan i o | i -> o, o -> i where

A class for chan types with a "write end" and a "read end". A minimal complete instance defines readChan and one of writeChan or writeList2Chan.

Methods

readChan :: o a -> IO a

Read the next value from the OutChan.

writeList2Chan :: i a -> [a] -> IO ()

Write an entire list of items to a chan type

writeChan :: i a -> a -> IO ()

Write a value to a Chan type.

Instances

SplitChan Chan Chan

SplitChan MVar MVar

SplitChan InChan OutChan

class SplitChan i o => NewSplitChan i o where

A class for SplitChan types that can be instantiated without programmer input. e.g. the standard haskell Chan is a member of this class, however a bounded chan type that took an Int to define the buffer size would not.

Methods

newSplitChan :: IO (i a, o a)

Instances

NewSplitChan Chan Chan

NewSplitChan MVar MVar

NewSplitChan InChan OutChan