53 lines
2.1 KiB
Markdown
53 lines
2.1 KiB
Markdown
# Syndicate: A Networked, Concurrent, Functional Programming Language
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Syndicate is an actor-based concurrent language able to express
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communication, enforce isolation, and manage resources.
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Network-inspired extensions to a functional core represent imperative
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actions as values, giving side-effects locality and enabling
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composition of communicating processes.
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Collaborating actors are grouped within task-specific *networks* (a.k.a.
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virtual machines) to scope their interactions. Conversations between
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actors are multi-party (using a publish/subscribe medium), and actors
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can easily participate in many such conversations at once.
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Syndicate makes *presence* notifications an integral part of pub/sub
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through its *shared dataspaces*, akin to
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[tuplespaces](https://en.wikipedia.org/wiki/Tuple_space). Each shared
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dataspace doubles as the pub/sub subscription table for its network.
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Actors react to *state change notifications* reporting changes in a
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dataspace, including new subscriptions created by peers and removal of
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subscriptions when a peer exits or crashes. State change notifications
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serve to communicate changes in demand for and supply of services,
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both within a single network and across nested layers of
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networks-within-networks. Programs can give up responsibility for
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maintaining shared state and for scoping group communications, letting
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their containing network take on those burdens.
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## Contents
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This repository contains
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- a [Racket](http://racket-lang.org/) implementation of Syndicate
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(plus auxiliary modules) in `racket/syndicate/`
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- an
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[ECMAScript 5](http://www.ecma-international.org/publications/standards/Ecma-262.htm)
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implementation of Syndicate in `js/`
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- larger example programs:
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- `examples/platformer`, a 2D Platform game written in Syndicate
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for Racket.
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- `examples/netstack`, a TCP/IP stack written in Syndicate for
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Racket. It reads and writes raw Ethernet packets from the kernel
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using Linux- and OSX-specific APIs.
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- a sketch of a Haskell implementation of the core routing structures
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of Syndicate in `hs/`
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## Copyright
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Copyright © Tony Garnock-Jones 2010, 2011, 2012, 2013, 2014, 2015, 2016.
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