Control.Concurrent.SizedChan

Chan with size

Documentation

data SizedChan a

newSizedChan :: IO (SizedChan a)

Build and returns a new instance of SizedChan.

writeSizedChan :: SizedChan a -> a -> IO ()

Write a value to a SizedChan.

readSizedChan :: SizedChan a -> IO a

Read the next value from the SizedChan. Blocks when the channel is empty.

tryReadSizedChan :: SizedChan a -> IO (Maybe a)

A version of readSizedChan which does not block. Instead it returns Nothing if no value is available.

peekSizedChan :: SizedChan a -> IO a

Peek the next value from the SizedChan without removing it. Blocks when the channel is empty.

tryPeekSizedChan :: SizedChan a -> IO (Maybe a)

A version of peekSizedChan which does not block. Instead it returns Nothing if no value is available.

isEmptySizedChan :: SizedChan a -> IO Bool