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Fall back to TCP if socket does not exist

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Also have client emit error on stream error if there is no initCb.
This commit is contained in:
Ian Scott 2015-06-25 15:31:30 -07:00
parent fb817b8e2b
commit 2d7d6cbc8f
1 changed files with 35 additions and 20 deletions
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55
lib/xcore.js
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@ -23,7 +23,6 @@ var em = require('./eventmask').eventMask;
function XClient(stream, displayNum, screenNum, options)
{
EventEmitter.call(this);
this.stream = stream;
this.options = options ? options : {};
// TODO: this is probably not used
@ -33,6 +32,12 @@ function XClient(stream, displayNum, screenNum, options)
this.displayNum = displayNum;
this.screenNum = screenNum;
this.authHost = os.hostname();
}
util.inherits(XClient, EventEmitter);
XClient.prototype.init = function(stream)
{
this.stream = stream;
var pack_stream = new PackStream();
@ -108,7 +113,6 @@ function XClient(stream, displayNum, screenNum, options)
this.startHandshake();
this._closing = false;
}
util.inherits(XClient, EventEmitter);
// TODO: close() = set 'closing' flag, watch it in replies and writeQueue, terminate if empty
XClient.prototype.terminate = function()
@ -569,6 +573,8 @@ module.exports.createClient = function(options, initCb)
// open stream
var stream;
var connected = false;
var cbCalled = false;
var socketPath;
// try local socket on non-windows platforms
@ -585,18 +591,35 @@ module.exports.createClient = function(options, initCb)
socketPath = '/tmp/.X11-unix/X' + displayNum;
}
//socketPath = '/tmp/.X11-unix/X' + displayNum;
if(socketPath)
{
stream = net.createConnection(socketPath);
}
else
{
stream = net.createConnection(6000 + parseInt(displayNum), host);
}
var client = new XClient(stream, displayNum, screenNum, options);
var client = new XClient(displayNum, screenNum, options);
var connectStream = function() {
if (socketPath) {
stream = net.createConnection(socketPath);
} else {
stream = net.createConnection(6000 + parseInt(displayNum), host);
}
stream.on('connect', function() {
connected = true;
client.init(stream);
});
stream.on('error', function(err) {
if (!connected && socketPath && err.code === 'ENOENT') {
// Retry connection with TCP on localhost
socketPath = null;
host = 'localhost';
connectStream();
} else if (initCb && !cbCalled) {
cbCalled = true;
initCb(err);
} else {
client.emit('error', err);
}
});
};
connectStream();
if (initCb)
{
var cbCalled = false;
client.on('connect', function(display) {
// opt-in BigReq
if (!options.disableBigRequests) {
@ -614,14 +637,6 @@ module.exports.createClient = function(options, initCb)
initCb(undefined, display);
}
});
stream.on('error', function(err) {
if (cbCalled)
client.emit('error', err);
else {
cbCalled = true;
initCb(err);
}
});
}
return client;
}