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---
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title: Home
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layout: page
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class: frontpage
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link:
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ghrepo: 'https://github.com/tonyg/syndicate'
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---
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2016-04-01 19:17:27 +00:00
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**noun**
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/ˈsindikit/
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1. a self-organizing group of individuals, companies, corporations or
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entities formed to transact some specific business, to pursue or
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promote a shared interest. <small>—[Wikipedia](https://en.wikipedia.org/wiki/Syndicate)</small>
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2016-04-02 01:03:03 +00:00
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# Motivation
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Every interactive program needs some way of
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- representing the *conversations* it is having as *concurrent
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components*
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- *mapping incoming events* to these components
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- managing the *shared understanding* that the components are
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building as they work towards the program's goal
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- cleaning up shared state after *partial failure* of a component
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- *scoping* interactions and shared state inside the program
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Existing programming languages lack linguistic support for these
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requirements, leaving the programmer to fend for themselves.
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Syndicate is a language designed to help organise interactive
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programs.
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# Features
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Syndicate is an Actor-based language offering
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- pub/sub pattern-based message routing, for mapping events to actors
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- *dataspaces*, stores for semi-structured data, for managing shared
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state
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- *state change notifications* for keeping actors informed of changes
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in dataspaces
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- integrated techniques for registering and discovering services and
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for cleaning up after both graceful and unexpected actor failures
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- recursive layering of groups of actors, each group with a private
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dataspace of its own, for organising larger programs
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Together, these features help address the above challenges.
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# Code
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Syndicate is implemented both for [Racket](http://racket-lang.org/)
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and for [ES5](https://en.wikipedia.org/wiki/ECMAScript).
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<a href="{{ page.link.ghrepo }}"><img class="leftfloat" alt="Link to Syndicate github repo" src="{{ site.baseurl }}/img/GitHub-Mark-64px.png"></a>
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The [Syndicate github repository]({{ page.link.ghrepo }}) contains
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implementations along with some larger example programs.
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<div class="clear"></div>
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# Papers
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<a href="{{ site.baseurl }}/papers/from-events-to-reactions-a-progress-report-20160301-1747.pdf"><img class="leftfloat" src="{{ site.baseurl }}/img/pdf_icon_gen_48x49.png"></a>
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Tony Garnock-Jones, [“From Events To Reactions: A Progress Report”]({{
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site.baseurl
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}}/papers/from-events-to-reactions-a-progress-report-20160301-1747.pdf),
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In: Proc. 9th Int. Workshop on Programming Language Approaches to
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Concurrency and Communication-cEntric Software (PLACES 2016), April
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2016, Eindhoven, Netherlands.
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<div class="clear"></div>
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<a href="{{ site.baseurl }}/papers/coordinated-concurrent-programming-in-syndicate-20160111-1409.pdf"><img class="leftfloat" src="{{ site.baseurl }}/img/pdf_icon_gen_48x49.png"></a>
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Tony Garnock-Jones and Matthias Felleisen,
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[“Coordinated Concurrent Programming in Syndicate”]({{ site.baseurl
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}}/papers/coordinated-concurrent-programming-in-syndicate-20160111-1409.pdf),
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In: Proc. 25th European Symposium on Programming (ESOP 2016), April
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2016, Eindhoven, Netherlands.
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<div class="clear"></div>
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