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New option to control the stream id generation by erlichmen · Pull Request #40 · binaryjs/binaryjs · GitHub

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New option to control the stream id generation #40

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New option to control the stream id generation #40

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34 changes: 27 additions & 7 deletions lib/client.js
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,25 @@ var BinaryStream = require('./stream').BinaryStream;

// end node


function sequentialStreamId(socket) {
if (!(this instanceof sequentialStreamId)) return new sequentialStreamId(socket);

if(typeof socket === 'string') {
this._nextId = 0;
} else {
// Use odd numbered ids for server originated streams
this._nextId = 1;
}
}

sequentialStreamId.prototype.next = function(meta) {
var result = this._nextId;
this._nextId += 2;

return result;
}

function BinaryClient(socket, options) {
if (!(this instanceof BinaryClient)) return new BinaryClient(socket, options);

Expand All @@ -17,17 +36,18 @@ function BinaryClient(socket, options) {
var self = this;

this._options = util.extend({
chunkSize: 40960
chunkSize: 40960,
streamIdGenerator: sequentialStreamId
}, options);

this.streams = {};


this.streamIdGenerator = this._options.streamIdGenerator(socket);

if(typeof socket === 'string') {
this._nextId = 0;
this._socket = new WebSocket(socket);
} else {
// Use odd numbered ids for server originated streams
this._nextId = 1;
this._socket = socket;
}

Expand Down Expand Up @@ -234,10 +254,10 @@ BinaryClient.prototype.createStream = function(meta){
return;
}
var self = this;
var streamId = this._nextId;
this._nextId += 2;
var streamId = this.streamIdGenerator.next(meta);

var binaryStream = new BinaryStream(this._socket, streamId, true, meta);
binaryStream.on('close', function(){
binaryStream.on('close', function(){
delete self.streams[streamId];
});
this.streams[streamId] = binaryStream;
Expand Down
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