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The version of Syndicate current at the conclusion of Tony Garnock-Jones's PhD research, end-of-2017/start-of-2018.
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Tony Garnock-Jones ac5c5d2e5f First steps toward correct facet-termination. 
- Facet IDs are now lists so arbitrary ancestors can be computed with
   repeated application of cdr

 - `stop-facet` is new and untested, other than that `stop-when` is
   refactored to use `stop-facet`

 - *all* matching stop-when instances run now; the limitation that
    exactly one instance should match is lifted.

 - roughly, (stop-when E X ...) === (on E (stop (current-facet-id) X ...))

Remaining to be done: fix `terminate-facet!` to do the right things in
the right order.
 		2017-07-04 22:03:32 -04:00
doc More minor fixes 2016-05-13 20:50:20 -04:00
examples Track fragment versions to reestablish child fragments after a change. 2017-03-11 10:54:32 -05:00
historical Move syndicate-monolithic to new historical directory. 2016-07-30 14:48:59 -04:00
hs Remove unnecessary definition 2017-01-18 11:04:28 -05:00
js tweak crazy mikes 2017-04-20 13:50:00 -04:00
racket First steps toward correct facet-termination. 2017-07-04 22:03:32 -04:00
README.md Update readmes 2016-04-01 20:02:50 -04:00

README.md

Syndicate: A Networked, Concurrent, Functional Programming Language

Syndicate is an actor-based concurrent language able to express communication, enforce isolation, and manage resources. Network-inspired extensions to a functional core represent imperative actions as values, giving side-effects locality and enabling composition of communicating processes.

Collaborating actors are grouped within task-specific networks (a.k.a. virtual machines) to scope their interactions. Conversations between actors are multi-party (using a publish/subscribe medium), and actors can easily participate in many such conversations at once.

Syndicate makes presence notifications an integral part of pub/sub through its shared dataspaces, akin to tuplespaces. Each shared dataspace doubles as the pub/sub subscription table for its network. Actors react to state change notifications reporting changes in a dataspace, including new subscriptions created by peers and removal of subscriptions when a peer exits or crashes. State change notifications serve to communicate changes in demand for and supply of services, both within a single network and across nested layers of networks-within-networks. Programs can give up responsibility for maintaining shared state and for scoping group communications, letting their containing network take on those burdens.

Contents

This repository contains

  • a Racket implementation of Syndicate (plus auxiliary modules) in racket/syndicate/

  • an ECMAScript 5 implementation of Syndicate in js/

  • larger example programs:

    • examples/platformer, a 2D Platform game written in Syndicate for Racket.

    • examples/netstack, a TCP/IP stack written in Syndicate for Racket. It reads and writes raw Ethernet packets from the kernel using Linux- and OSX-specific APIs.

  • a sketch of a Haskell implementation of the core routing structures of Syndicate in hs/

Copyright

Copyright © Tony Garnock-Jones 2010, 2011, 2012, 2013, 2014, 2015, 2016.