Live texturing

2016-03-18 10:14:02 +01:00
parent 65e5729118
commit 7fc83d1471
155 changed files with 18378 additions and 0 deletions
@@ -0,0 +1,88 @@
+var zmq = require('..')
+  , should = require('should')
+  , semver = require('semver');
+
+describe('socket.xpub-xsub', function () {
+  it('should support pub-sub tracing and filtering', function (done) {	
+    if (!semver.gte(zmq.version, '3.1.0')) {
+      done();
+      return console.warn('Test requires libzmq >= 3.1.0');
+    }
+
+    var n = 0;
+    var m = 0;
+    var pub = zmq.socket('pub');
+    var sub = zmq.socket('sub');
+    var xpub = zmq.socket('xpub');
+    var xsub = zmq.socket('xsub');
+
+    pub.bindSync('tcp://*:5556');	
+    xsub.connect('tcp://127.0.0.1:5556');
+    xpub.bindSync('tcp://*:5555'); 		
+    sub.connect('tcp://127.0.0.1:5555');
+
+    xsub.on('message', function (msg) {
+      xpub.send(msg); // Forward message using the xpub so subscribers can receive it
+    });
+        
+    xpub.on('message', function (msg) {
+      msg.should.be.an.instanceof(Buffer);
+
+      var type = msg[0] === 0 ? 'unsubscribe' : 'subscribe';
+      var channel = msg.slice(1).toString();
+            
+      switch (type) {
+        case 'subscribe':
+          switch (m++) {
+            case 0:
+              channel.should.equal('js');
+              break;
+            case 1:
+              channel.should.equal('luna');
+              break;
+          }
+          break;
+        case 'unsubscribe':
+          switch (m++) {
+            case 2:
+              channel.should.equal('luna');
+              sub.close();
+              pub.close();
+              xsub.close();
+              xpub.close();
+              done();
+              break;
+          }
+          break;
+      }
+
+      xsub.send(msg); // Forward message using the xsub so the publisher knows it has a subscriber 
+    });
+
+    sub.on('message', function (msg) {
+      msg.should.be.an.instanceof(Buffer);
+      switch (n++) {
+        case 0:
+          msg.toString().should.equal('js is cool');
+          break;
+        case 1:
+          msg.toString().should.equal('luna is cool too');
+          break;
+      }
+    });
+
+    sub.subscribe('js');
+    sub.subscribe('luna');
+        
+    setTimeout(function () {
+      pub.send('js is cool');
+      pub.send('ruby is meh');
+      pub.send('py is pretty cool');
+      pub.send('luna is cool too');
+    }, 100.0);
+        
+    setTimeout(function () {
+      sub.unsubscribe('luna');
+    }, 300);
+  });
+});