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path = require("path");
exec = require("child_process").exec;
http = require("http");
port = parseInt(process.env.PORT || 8000);
console.log('pid ' + process.pid);
fixed = ""
for (var i = 0; i < 20*1024; i++) {
fixed += "C";
}
stored = {};
storedBuffer = {};
var server = http.createServer(function (req, res) {
var commands = req.url.split("/");
var command = commands[1];
var body = "";
var arg = commands[2];
var n_chunks = parseInt(commands[3], 10);
var status = 200;
if (command == "bytes") {
var n = parseInt(arg, 10)
if (n <= 0)
throw "bytes called with n <= 0"
if (stored[n] === undefined) {
console.log("create stored[n]");
stored[n] = "";
for (var i = 0; i < n; i++) {
stored[n] += "C"
}
}
body = stored[n];
} else if (command == "buffer") {
var n = parseInt(arg, 10)
if (n <= 0) throw new Error("bytes called with n <= 0");
if (storedBuffer[n] === undefined) {
console.log("create storedBuffer[n]");
storedBuffer[n] = new Buffer(n);
for (var i = 0; i < n; i++) {
storedBuffer[n][i] = "C".charCodeAt(0);
}
}
body = storedBuffer[n];
} else if (command == "quit") {
res.connection.server.close();
body = "quitting";
} else if (command == "fixed") {
body = fixed;
} else if (command == "echo") {
res.writeHead(200, { "Content-Type": "text/plain",
"Transfer-Encoding": "chunked" });
req.pipe(res);
return;
} else {
status = 404;
body = "not found\n";
}
// example: http://localhost:port/bytes/512/4
// sends a 512 byte body in 4 chunks of 128 bytes
if (n_chunks > 0) {
res.writeHead(status, { "Content-Type": "text/plain",
"Transfer-Encoding": "chunked" });
// send body in chunks
var len = body.length;
var step = ~~(len / n_chunks) || len;
for (var i = 0; i < len; i += step) {
res.write(body.slice(i, i + step));
}
res.end();
} else {
var content_length = body.length.toString();
res.writeHead(status, { "Content-Type": "text/plain",
"Content-Length": content_length });
res.end(body);
}
});
server.listen(port, function () {
console.log('Listening at http://127.0.0.1:'+port+'/');
});
process.on('exit', function() {
console.error('libuv counters', process.uvCounters());
});
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