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test-tcp-many-clients.js
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test-tcp-many-clients.js
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process.mixin(require("./common"));
tcp = require("tcp");
// settings
var port = 20743;
var bytes = 1024*40;
var concurrency = 100;
var connections_per_client = 5;
// measured
var total_connections = 0;
var body = "";
for (var i = 0; i < bytes; i++) {
body += "C";
}
var server = tcp.createServer(function (c) {
c.addListener("connect", function () {
total_connections++;
print("#");
c.send(body);
c.close();
});
});
server.listen(port);
function runClient (callback) {
var client = tcp.createConnection(port);
client.connections = 0;
client.setEncoding("utf8");
client.addListener("connect", function () {
print("c");
client.recved = "";
client.connections += 1;
});
client.addListener("receive", function (chunk) {
this.recved += chunk;
});
client.addListener("eof", function (had_error) {
client.close();
});
client.addListener("close", function (had_error) {
print(".");
assert.equal(false, had_error);
assert.equal(bytes, client.recved.length);
if (this.connections < connections_per_client) {
this.connect(port);
} else {
callback();
}
});
}
var finished_clients = 0;
for (var i = 0; i < concurrency; i++) {
runClient(function () {
if (++finished_clients == concurrency) server.close();
});
}
process.addListener("exit", function () {
assert.equal(connections_per_client * concurrency, total_connections);
puts("\nokay!");
});