node.js koa框架的子进程调用

gistfile1.js

//父进程
var cp = require('child_process');
var forkChildProcess = function(sendData){
	return function(cb){
		var child = cp.fork('./server/childProcess.js');
		child.on('message', function(msg){
			cb(null, msg);
		});
		child.send(sendData);
	}
}
//web接口
var handler = function*(){
	var result = yield forkChildProcess({hello:'world'});
	this.body = JSON.stringify(result);
}


//子进程
process.on('message', function(sendData) {
	//处理发送过来的数据sendData
	process.send({'echo': sendData});
	//结束子进程
	process.exit();
});