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// test the speed of .pipe() with sockets
'use strict';
var common = require('../common.js');
var PORT = common.PORT;
var bench = common.createBenchmark(main, {
len: [4, 8, 16, 32, 64, 128, 512, 1024],
type: ['buf'],
dur: [5],
});
var dur;
var len;
var type;
var chunk;
var encoding;
function main(conf) {
dur = +conf.dur;
len = +conf.len;
type = conf.type;
switch (type) {
case 'buf':
chunk = new Buffer(len);
chunk.fill('x');
break;
case 'utf':
encoding = 'utf8';
chunk = new Array(len / 2 + 1).join('ü');
break;
case 'asc':
encoding = 'ascii';
chunk = new Array(len + 1).join('x');
break;
default:
throw new Error('invalid type: ' + type);
}
server();
}
var net = require('net');
function Writer() {
this.received = 0;
this.writable = true;
}
Writer.prototype.write = function(chunk, encoding, cb) {
this.received += chunk.length;
if (typeof encoding === 'function')
encoding();
else if (typeof cb === 'function')
cb();
return true;
};
// doesn't matter, never emits anything.
Writer.prototype.on = function() {};
Writer.prototype.once = function() {};
Writer.prototype.emit = function() {};
function server() {
var writer = new Writer();
// the actual benchmark.
var server = net.createServer(function(socket) {
socket.pipe(writer);
});
server.listen(PORT, function() {
var socket = net.connect(PORT);
socket.on('connect', function() {
bench.start();
socket.on('drain', send);
send();
setTimeout(function() {
var bytes = writer.received;
var gbits = (bytes * 8) / (1024 * 1024 * 1024);
bench.end(gbits);
}, dur * 1000);
function send() {
socket.cork();
while (socket.write(chunk, encoding)) {}
socket.uncork();
}
});
});
}