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/**
* Module dependencies.
*/
var slice = require('../utils').slice;
var debug = require('debug')('axon:rep');
var Message = require('amp-message');
var Socket = require('./sock');
/**
* Expose `RepSocket`.
*/
module.exports = RepSocket;
/**
* Initialize a new `RepSocket`.
*
* @api private
*/
function RepSocket() {
Socket.call(this);
}
/**
* Inherits from `Socket.prototype`.
*/
RepSocket.prototype.__proto__ = Socket.prototype;
/**
* Incoming.
*
* @param {net.Socket} sock
* @return {Function} closure(msg, mulitpart)
* @api private
*/
RepSocket.prototype.onmessage = function(sock){
var self = this;
return function (buf){
var msg = new Message(buf);
var args = msg.args;
var id = args.pop();
args.unshift('message');
args.push(reply);
self.emit.apply(self, args);
function reply() {
var fn = function(){};
var args = slice(arguments);
args[0] = args[0] || null;
var hasCallback = 'function' == typeof args[args.length - 1];
if (hasCallback) fn = args.pop();
args.push(id);
if (sock.writable) {
sock.write(self.pack(args), function(){ fn(true) });
return true;
} else {
debug('peer went away');
process.nextTick(function(){ fn(false) });
return false;
}
}
};
};