Eager Future2
Eager Future2 provides composable concurrency primitives that unify parallel and lazy evaluation, are integrated with CL's condition system, and have automatic resource management.

Eager Future2 is the successor to Eager Future, which was a fork of PCall.

Homepage: http://common-lisp.net/project/eager-future/

License: LLGPLv3

Repository: https://github.com/vsedach/Eager-Future2