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Improving code readability on lib/_http_agent.js #83

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Improving code readability on lib/_http_agent.js #83

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a4d605e
Improving code readability
imjacobclark Dec 5, 2014
de1a4b0
Fixing typos
imjacobclark Dec 5, 2014
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27 changes: 15 additions & 12 deletions lib/_http_agent.js
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Original file line number Diff line number Diff line change
Expand Up @@ -78,13 +78,15 @@ function Agent(options) {
req.shouldKeepAlive &&
!socket.destroyed &&
self.options.keepAlive) {

var freeSockets = self.freeSockets[name];
var freeLen = freeSockets ? freeSockets.length : 0;
var count = freeLen;
var totalSocketLength = freeSockets ? freeSockets.length : 0;
var socketsAvailable = totalSocketLength < this.maxSockets || totalSocketLength >= self.maxFreeSockets;

if (self.sockets[name])
count += self.sockets[name].length;
totalSocketLength += self.sockets[name].length;

if (count >= self.maxSockets || freeLen >= self.maxFreeSockets) {
if (socketsAvailable) {
self.removeSocket(socket, options);
socket.destroy();
} else {
Expand Down Expand Up @@ -145,28 +147,29 @@ Agent.prototype.addRequest = function(req, options) {
this.sockets[name] = [];
}

var freeLen = this.freeSockets[name] ? this.freeSockets[name].length : 0;
var sockLen = freeLen + this.sockets[name].length;
var availableFreeSockets = this.freeSockets[name] ? this.freeSockets[name].length : 0;
var totalSocketLength = availableFreeSockets + this.sockets[name].length;
var socketsAvailable = totalSocketLength < this.maxSockets;

if (freeLen) {
if (availableFreeSockets) {
// we have a free socket, so use that.
var socket = this.freeSockets[name].shift();
debug('have free socket');

var hasFreeSockets = !this.freeSockets[name].length
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Could this be accomplished with a comment rather than creating another var to keep track of? I find the // don't leak to be more sloppy than this particular change.

I don't like this pattern... but I applaud the effort of improving readability and variable naming as you have above. 👍


// don't leak
if (!this.freeSockets[name].length)
if (hasFreeSockets)
delete this.freeSockets[name];

socket.ref();
req.onSocket(socket);
this.sockets[name].push(socket);
} else if (sockLen < this.maxSockets) {
debug('call onSocket', sockLen, freeLen);
// If we are under maxSockets create a new one.
} else if (socketsAvailable) {
debug('call onSocket', totalSocketLength, availableFreeSockets);
req.onSocket(this.createSocket(req, options));
} else {
debug('wait for socket');
// We are over limit so we'll add it to the queue.
if (!this.requests[name]) {
this.requests[name] = [];
}
Expand Down