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Allow dynamic modification of universes the server listens on #13

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Allow dynamic modification of universes the server listens on #13

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2 changes: 2 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -96,6 +96,8 @@ server.on('packet', function (packet) {
});
```

Universes to listen for can be added and droppped at any time by calling `addUniverse(universes)` or `dropUniverse(universes)`, respectively. The argument for these methods is an array of universe numbers.

## E1.31 (sACN) Packet Class

The E1.31 Packet class contains a number of useful setter methods:
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18 changes: 18 additions & 0 deletions lib/server.js
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Expand Up @@ -80,6 +80,24 @@ Server.prototype.close = function close() {
this._socket.close();
};

Server.prototype.addUniverses = function(universes) {
universes.forEach(universe => {
if (this.universes.includes(universe)) return;
this.universes.push(universe);
this._lastSequenceNumber[universe] = 0;
this._socket.addMembership(e131.getMulticastGroup(universe));
});
};

Server.prototype.dropUniverses = function(universes) {
universes.forEach(universe => {
if (!this.universes.includes(universe)) return;
this.universes.splice(this.universes.indexOf(universe), 1);
delete this._lastSequenceNumber[universe];
this._socket.dropMembership(e131.getMulticastGroup(universe));
});
};

// server object inherits from EventEmitter
util.inherits(Server, EventEmitter);

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