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node.tcp.createServer = function (on_connection, options) {
var server = new node.tcp.Server();
server.addListener("connection", on_connection);
//server.setOptions(options);
return server;
};
// Timers
function setTimeout (callback, after) {
var timer = new node.Timer();
timer.addListener("timeout", callback);
timer.start(after, 0);
return timer;
}
function setInterval (callback, repeat) {
var timer = new node.Timer();
timer.addListener("timeout", callback);
timer.start(repeat, repeat);
return timer;
}
function clearTimeout (timer) {
timer.stop();
delete timer;
}
clearInterval = clearTimeout;
// This is useful for dealing with raw encodings.
Array.prototype.encodeUtf8 = function () {
return String.fromCharCode.apply(String, this);
};
node.path = new function () {
this.join = function () {
var joined = "";
for (var i = 0; i < arguments.length; i++) {
var part = arguments[i].toString();
/* Some logic to shorten paths */
if (part === ".") continue;
while (/^\.\//.exec(part)) part = part.replace(/^\.\//, "");
if (i === 0) {
part = part.replace(/\/*$/, "/");
} else if (i === arguments.length - 1) {
part = part.replace(/^\/*/, "");
} else {
part = part.replace(/^\/*/, "")
.replace(/\/*$/, "/");
}
joined += part;
}
return joined;
};
this.dirname = function (path) {
if (path.charAt(0) !== "/") path = "./" + path;
var parts = path.split("/");
return parts.slice(0, parts.length-1).join("/");
};
this.filename = function (path) {
if (path.charAt(0) !== "/") path = "./" + path;
var parts = path.split("/");
return parts[parts.length-1];
};
};
node.cat = function(location, encoding, callback) {
var url_re = new RegExp("^http:\/\/");
var f = url_re.exec(location) ? node.http.cat : node.fs.cat;
return f(location, encoding, callback);
};
// Module
node.Module = function (o) {
this.parent = o.parent;
this.target = o.target || {};
if (!o.path) throw "path argument required";
if (o.path.charAt(0) == "/") {
throw "Absolute module paths are not yet supported by Node";
}
if (o.path.match(/:\/\//)) {
this.filename = o.path;
} else {
var dir = o.base_directory || ".";
this.filename = node.path.join(dir, o.path);
}
this.loaded = false;
this.exited = false;
this.children = [];
};
node.Module.prototype.load = function (callback) {
var self = this;
if (self.loaded) {
throw "Module '" + self.filename + "' is already loaded.";
}
var promise = node.cat(self.filename, "utf8");
promise.addErrback(function () {
stderr.puts("Error reading " + self.filename);
node.exit(1);
});
promise.addCallback(function (content) {
self.target.__require = function (path) { return self.newChild(path, {}); };
self.target.__include = function (path) { self.newChild(path, self.target); };
// create wrapper function
var wrapper = "function (__filename) {\n"
+ " var onLoad;\n"
+ " var onExit;\n"
+ " var exports = this;\n"
+ " var require = this.__require;\n"
+ " var include = this.__include;\n"
+ content
+ "\n"
+ " this.__onLoad = onLoad;\n"
+ " this.__onExit = onExit;\n"
+ "};\n"
;
var compiled_wrapper = node.compile(wrapper, self.filename);
compiled_wrapper.apply(self.target, [self.filename]);
self.onLoad = self.target.__onLoad;
self.onExit = self.target.__onExit;
self.loadChildren(function () {
if (self.onLoad) self.onLoad();
self.loaded = true;
if (callback) callback();
});
});
};
node.Module.prototype.newChild = function (path, target) {
var child = new node.Module({
target: target,
path: path,
base_directory: node.path.dirname(this.filename),
parent: this
});
this.children.push(child);
return target;
};
node.Module.prototype.loadChildren = function (callback) {
var children = this.children;
if (children.length == 0 && callback) callback();
var nloaded = 0;
for (var i = 0; i < children.length; i++) {
var child = children[i];
child.load(function () {
nloaded += 1;
if (nloaded == children.length && callback) callback();
});
}
};
node.Module.prototype.exitChildren = function (callback) {
var children = this.children;
if (children.length == 0 && callback) callback();
var nexited = 0;
for (var i = 0; i < children.length; i++) {
children[i].exit(function () {
nexited += 1;
if (nexited == children.length && callback) callback();
});
}
};
node.Module.prototype.exit = function (callback) {
var self = this;
if (self.exited) {
throw "Module '" + self.filename + "' is already exited.";
}
this.exitChildren(function () {
if (self.onExit) self.onExit();
self.exited = true;
if (callback) callback()
});
};
(function () {
// Load the root module--the command line argument.
root_module = new node.Module({
path: node.path.filename(ARGV[1]),
base_directory: node.path.dirname(ARGV[1]),
target: this
});
root_module.load();
node.exit = function (code) {
root_module.exit(function () {
node.reallyExit(code);
});
};
}())
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