-
-
Save crodas/1016019 to your computer and use it in GitHub Desktop.
ZeroMQ and Node.js pub/sub emitter
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/bin/bash -x | |
# crodas | |
# get code from git | |
if [[ ! -d node ]] | |
then | |
git clone git://github.com/joyent/node | |
fi | |
cd node/ | |
git pull origin master | |
# install required libraries for ubuntu | |
apt-get install -y build-essential libssl-dev curl | |
# compile node | |
./configure | |
make -j 4 | |
make install | |
# install npm | |
curl http://npmjs.org/install.sh | sh |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/bin/bash -x | |
#crodas | |
# get | |
if [[ ! -f zeromq-2.1.7.tar.gz ]] | |
then | |
wget http://download.zeromq.org/zeromq-2.1.7.tar.gz | |
fi | |
tar xfvz zeromq-2.1.7.tar.gz | |
cd zeromq-2.1.7 | |
# | |
apt-get install - -yy uuid-dev libev-dev | |
# configure && compile | |
./configure --with-pgm | |
make -j 4 | |
make install | |
# node | |
npm install zeromq | |
# php | |
pear channel-discover pear.zero.mq | |
pecl install zero.mq/zmq-beta | |
echo "extension=zmq.so" > /etc/php5/conf.d/zmq.ini | |
/etc/init.d/apache2 reload |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
// ZeroMQ PUB/SUB + Multicast (PGM) enabled event emitter for node.js | |
// gleicon - 2011 | |
var util = require("util"); | |
var events = require("events"); | |
var zeromq = require("zeromq"); // check the right path | |
var sys = require("sys"); | |
var address = "epgm://192.168.2.7:9999"; | |
function DistEventEmitter(name, remote_node) { | |
events.EventEmitter.call(this); | |
this.id = new Date().getTime() + "-" + process.pid; | |
this.pub_socket = zeromq.createSocket('pub'); | |
this.sub_socket = zeromq.createSocket('sub'); | |
this.pub_socket.connect(address, function(e){ if (e) console.log(e); }); | |
this.sub_socket.connect(address, function(e){ if (e) console.log(e); }); | |
this.sub_socket.subscribe("EVENTS"); | |
this.sub_socket.on("message", DistEventEmitter.prototype._dispatch); | |
} | |
util.inherits(DistEventEmitter, events.EventEmitter); | |
DistEventEmitter.prototype._emit_local = DistEventEmitter.prototype.emit | |
DistEventEmitter.prototype._dispatch = function (data) { | |
DistEventEmitter.call(this); | |
try { | |
d = JSON.parse(data.toString('utf8').replace('EVENTS ', '')); | |
console.log('r: '+d.msg) | |
if (d.id != this.id) DistEventEmitter.prototype._emit_local(d.event_name, d.msg); | |
console.log('rec: '+d.msg); | |
} catch (e) { console.log(e); } | |
} | |
DistEventEmitter.prototype._broadcast = function(w) { | |
DistEventEmitter.call(this); | |
pkt = JSON.stringify({ "id": this.id, | |
"event_emitter": "data_ws", | |
"event_name" : "data", | |
"msg": w }); | |
this.pub_socket.send("EVENTS " + pkt); | |
} | |
DistEventEmitter.prototype.emit = function(evt, data) { | |
this._broadcast(data) | |
return this._emit_local(evt, data); | |
} | |
// test | |
var de = new DistEventEmitter(); | |
de.on("data", function(data) { console.log('Received data: "' + data + '"'); }) | |
de.on("error", function(data) { console.log('Received data (Error): "' + data + '"'); }) | |
de.emit("data", "It works!") | |
de.emit("data", "It works 2") |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
great stuff here, I've just freeze my VM and my mac because I've picked the wrong interface and zeromq had an assert error heh