pkgsrc/devel/hs-stm-chans/DESCR

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This package offers a collection of channel types, similar to
Control.Concurrent.STM.{TChan,TQueue} but with additional features. In
particular we offer the following data types:
Control.Concurrent.STM.TBChan:
Bounded FIFO channels. When the channel is full, writers will
block/retry. This ensures that the writers do not get too far ahead of
the readers, which helps to make sure that memory and cpu resources are
used responsibly.
Control.Concurrent.STM.TMChan:
Closeable FIFO channels.
Control.Concurrent.STM.TMQueue:
Closeable FIFO queues. Like TChan (Maybe a) but with a monotonicity
guarantee that once Nothing is returned all future reads will be
Nothing as well.
Control.Concurrent.STM.TBMChan:
Bounded Closeable FIFO channels.
Control.Concurrent.STM.TBMQueue:
Bounded Closeable FIFO queues. Combines the capabilities of TBChan and
TMChan.