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| -rw-r--r-- | gnu/packages/lisp-xyz.scm | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/gnu/packages/lisp-xyz.scm b/gnu/packages/lisp-xyz.scm index 9f71367e5b..fe2af3e568 100644 --- a/gnu/packages/lisp-xyz.scm +++ b/gnu/packages/lisp-xyz.scm @@ -1422,6 +1422,62 @@ several blockable channels.)") (define-public ecl-jpl-queues (sbcl-package->ecl-package sbcl-jpl-queues)) +(define-public sbcl-calispel + (let ((commit "e9f2f9c1af97f4d7bb4c8ac25fb2a8f3e8fada7a")) + (package + (name "sbcl-calispel") + (version (git-version "0.1" "1" commit)) + (source + (origin + (method git-fetch) + (uri (git-reference + ;; This fork replaces the dependency on the obsolete + ;; eager-future with eager-future2. + (url "https://github.com/hawkir/calispel") + (commit commit))) + (file-name (git-file-name name version)) + (sha256 + (base32 + "08bmf3pi7n5hadpmqqkg65cxcj6kbvm997wcs1f53ml1nb79d9z8")))) + (build-system asdf-build-system/sbcl) + (inputs + `(("jpl-queues" ,sbcl-jpl-queues) + ("bordeaux-threads" ,sbcl-bordeaux-threads))) + (native-inputs + `(("eager-future2" ,sbcl-eager-future2))) + (synopsis "Thread-safe message-passing channels in Common Lisp") + (description + "Calispel is a Common Lisp library for thread-safe message-passing +channels, in the style of the occam programming language, also known as +communicating sequential processes (CSP). See +@url{https://en.wikipedia.org/wiki/Communicating_sequential_processes}. + +Calispel channels let one thread communicate with another, facilitating +unidirectional communication of any Lisp object. Channels may be unbuffered, +where a sender waits for a receiver (or vice versa) before either operation can +continue, or channels may be buffered with flexible policy options. + +Because sending and receiving on a channel may block, either operation can time +out after a specified amount of time. + +A syntax for alternation is provided (like @code{ALT} in occam, or Unix +@code{select()}): given a sequence of operations, any or all of which may +block, alternation selects the first operation that doesn't block and executes +associated code. Alternation can also time out, executing an \"otherwise\" +clause if no operation becomes available within a set amount of time. + +Calispel is a message-passing library, and as such leaves the role of +threading abstractions and utilities left to be filled by complementary +libraries such as Bordeaux-Threads and Eager Future.") + (home-page "https://www.thoughtcrime.us/software/jpl-queues/") + (license license:isc)))) + +(define-public cl-calispel + (sbcl-package->cl-source-package sbcl-calispel)) + +(define-public ecl-calispel + (sbcl-package->ecl-package sbcl-calispel)) + (define-public sbcl-eos (let ((commit "b4413bccc4d142cbe1bf49516c3a0a22c9d99243") (revision "2")) |