Zusammenfassung
Without adding any primitives to the language, we define a concurrency monad transformer in Haskell. This allows us to add a limited form of concurrency to any existing monad. The atomic actions of the new monad are lifted actions of the underlying monad. Some extra operations, such as fork , to initiate new processes, are provided. We discuss the implementation, and use some examples to illustrate the usefulness of this construction.
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