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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 68ba2f74a6 Split dataspaces in to relay and mux sublayers. 
This is a major change to the previous design, and also a change with
respect to the semantics in the ESOP 2016 paper. All the complexity of
echo-cancellation is stripped out of the core dataspace semantics, and
the relaying protocol is changed from one constructor, `at-meta`, to
two, `inbound` and `outbound`. The relay connecting a dataspace to its
container is now completely symmetric with the contained actors: it
initially asserts interest in what it is to relay, just like any other
actor would. Dataspaces no longer treat relaying specially.

This commit has updated all (I think) of the non-graphical examples. The
graphical code remains to be done in a following commit.
 		2016-07-30 14:49:05 -04:00
doc More minor fixes 2016-05-13 20:50:20 -04:00
examples Split dataspaces in to relay and mux sublayers. 2016-07-30 14:49:05 -04:00
historical Move syndicate-monolithic to new historical directory. 2016-07-30 14:48:59 -04:00
hs Example of nontermination inputs. 2016-03-14 14:31:36 -04:00
js dataflow.js 2016-07-27 06:51:30 -04:00
racket Split dataspaces in to relay and mux sublayers. 2016-07-30 14:49:05 -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.