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/*
*
* Copyright 2016 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
/**
* Benchmark server module
* @module
*/
'use strict';
var fs = require('fs');
var path = require('path');
var http = require('http');
var https = require('https');
var EventEmitter = require('events');
var util = require('util');
var express = require('express');
var bodyParser = require('body-parser');
function unaryCall(req, res) {
var reqObj = req.body;
var payload = {body: '0'.repeat(reqObj.response_size)};
res.json(payload);
}
function BenchmarkServer(host, port, tls, generic, response_size) {
var app = express();
app.use(bodyParser.json());
app.put('/serviceProto.BenchmarkService.service/unaryCall', unaryCall);
this.input_host = host;
this.input_port = port;
if (tls) {
var credentials = {};
var key_path = path.join(__dirname, '../test/data/server1.key');
var pem_path = path.join(__dirname, '../test/data/server1.pem');
var key_data = fs.readFileSync(key_path);
var pem_data = fs.readFileSync(pem_path);
credentials['key'] = key_data;
credentials['cert'] = pem_data;
this.server = https.createServer(credentials, app);
} else {
this.server = http.createServer(app);
}
}
util.inherits(BenchmarkServer, EventEmitter);
BenchmarkServer.prototype.start = function() {
var self = this;
this.server.listen(this.input_port, this.input_hostname, function() {
self.last_wall_time = process.hrtime();
self.last_usage = process.cpuUsage();
self.emit('started');
});
};
BenchmarkServer.prototype.getPort = function() {
return this.server.address().port;
};
BenchmarkServer.prototype.mark = function(reset) {
var wall_time_diff = process.hrtime(this.last_wall_time);
var usage_diff = process.cpuUsage(this.last_usage);
if (reset) {
this.last_wall_time = process.hrtime();
this.last_usage = process.cpuUsage();
}
return {
time_elapsed: wall_time_diff[0] + wall_time_diff[1] / 1e9,
time_user: usage_diff.user / 1000000,
time_system: usage_diff.system / 1000000
};
};
BenchmarkServer.prototype.stop = function(callback) {
this.server.close(callback);
};
module.exports = BenchmarkServer;
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