-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";
+var path = require('path'),
+ exec = require('child_process').exec,
+ http = require('http');
+
+var port = parseInt(process.env.PORT || 8000);
+
+var fixed = makeString(20 * 1024, 'C'),
+ storedBytes = {},
+ storedBuffer = {},
+ storedUnicode = {};
+
+var useDomains = process.env.NODE_USE_DOMAINS;
+
+// set up one global domain.
+if (useDomains) {
+ var domain = require('domain');
+ var gdom = domain.create();
+ gdom.on('error', function(er) {
+ console.error('Error on global domain', er);
+ throw er;
+ });
+ gdom.enter();
}
-var uname, rev;
-
-exec('git rev-list -1 HEAD', function (e, stdout) {
- if (e) {
- console.error("Problem executing: 'git rev-list -1 HEAD'");
- throw new Error(e);
+var server = module.exports = http.createServer(function (req, res) {
+ if (useDomains) {
+ var dom = domain.create();
+ dom.add(req);
+ dom.add(res);
}
- rev = stdout.replace(/\s/g, '');
-});
-exec('uname -a', function (e, stdout) {
- if (e) {
- console.error("Problem executing: 'uname -a'");
- throw new Error(e);
- }
- uname = stdout.replace(/[\r\n]/g, '');
-});
-
-
-
-stored = {};
-storedBuffer = {};
-
-var server = http.createServer(function (req, res) {
- var commands = req.url.split("/");
+ var commands = req.url.split('/');
var command = commands[1];
- var body = "";
+ var body = '';
var arg = commands[2];
+ var n_chunks = parseInt(commands[3], 10);
var status = 200;
- if (command == "bytes") {
- var n = parseInt(arg, 10)
- debugger;
+ if (command == 'bytes') {
+ var n = ~~arg;
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"
- }
+ throw new Error('bytes called with n <= 0')
+ if (storedBytes[n] === undefined) {
+ storedBytes[n] = makeString(n, 'C');
}
- body = stored[n];
+ body = storedBytes[n];
- } else if (command == "buffer") {
- var n = parseInt(arg, 10)
- if (n <= 0) throw new Error("bytes called with n <= 0");
+ } else if (command == 'buffer') {
+ var n = ~~arg;
+ if (n <= 0)
+ throw new Error('buffer 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);
+ storedBuffer[n][i] = 'C'.charCodeAt(0);
}
}
body = storedBuffer[n];
- } else if (command == "quit") {
+ } else if (command == 'unicode') {
+ var n = ~~arg;
+ if (n <= 0)
+ throw new Error('unicode called with n <= 0');
+ if (storedUnicode[n] === undefined) {
+ storedUnicode[n] = makeString(n, '\u263A');
+ }
+ body = storedUnicode[n];
+
+ } else if (command == 'quit') {
res.connection.server.close();
- body = "quitting";
+ body = 'quitting';
- } else if (command == "fixed") {
+ } else if (command == 'fixed') {
body = fixed;
- } else if (command == "info") {
- body = 'rev=' + rev + '\nuname="' + uname + '"\n';
+ } 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";
+ body = 'not found\n';
}
- var content_length = body.length.toString();
-
- res.writeHead(status, { "Content-Type": "text/plain",
- "Content-Length": content_length });
- res.end(body);
+ // 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 = Math.floor(len / n_chunks) || 1;
+
+ for (var i = 0, n = (n_chunks - 1); i < n; ++i) {
+ res.write(body.slice(i * step, i * step + step));
+ }
+ res.end(body.slice((n_chunks - 1) * step));
+ } else {
+ var content_length = body.length.toString();
+ res.writeHead(status, { 'Content-Type': 'text/plain',
+ 'Content-Length': content_length });
+ res.end(body);
+ }
});
+function makeString(size, c) {
+ var s = '';
+ while (s.length < size) {
+ s += c;
+ }
+ return s;
+}
+
server.listen(port, function () {
- console.log('Listening at http://127.0.0.1:'+port+'/');
+ if (module === require.main)
+ console.error('Listening at http://127.0.0.1:'+port+'/');
});
-