js-csp
v1.0.1
Published
CSP channels with ES6 generators, inspired by Clojurescript's core.async and Go
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js-csp
Communicating sequential processes for Javascript (like Clojurescript core.async, or Go).
Examples
const csp = require('js-csp');
Pingpong (ported from Go).
function* player(name, table) {
while (true) {
let ball = yield csp.take(table);
if (ball === csp.CLOSED) {
console.log(name + ": table's gone");
return;
}
ball.hits += 1;
console.log(`${name} ${ball.hits}`);
yield csp.timeout(100);
yield csp.put(table, ball);
}
}
csp.go(function* () {
const table = csp.chan();
csp.go(player, ["ping", table]);
csp.go(player, ["pong", table]);
yield csp.put(table, {hits: 0});
yield csp.timeout(1000);
table.close();
});
There are more under examples directory.
Documentation
This is a very close port of Clojurescript's core.async. The most significant difference
is that the IOC logic is encapsulated using generators (yield
) instead of macros. Therefore resources on core.async
or Go channels are also helpful.
Other
Or, if you use Python's Twisted: https://github.com/ubolonton/twisted-csp
Or, if you use Clojure: https://github.com/clojure/core.async
Install
npm install js-csp
bower install js-csp
Contribution
Feel free to open issues for questions/discussions, or create pull requests for improvement.
Some areas that need attention:
- More documentation, examples, and maybe some visualization. Porting RxJS/Bacon examples may help.
- Multiplexing, mixing, publishing/subscribing. These need to be tested more. The API could also be improved.
- Deadlock detection.
Development
These commands are supposed to run separately
$ npm run test:watch
$ npm run lint # for code quality checking
$ npm run flow:watch # to stop server after you are done run npm run flow:stop
Production
$ npm run build
It will transpile all the codes in src
to lib
, or even better if you use webpack 2
to consume
the lib via "module": "./src/csp.js"
.
Inspiration
- http://swannodette.github.io/2013/08/24/es6-generators-and-csp
- https://github.com/clojure/core.async
- https://github.com/olahol/node-csp
License
Distributed under MIT License.