在Cocoa中运行套接字服务器

import Cocoa
import Foundation

let inputStream = NSInputStream(data: data)
let outputStream = NSOutputStream(data: data)
inputStream.delegate = self
outputStream.delegate = self

func stream(aStream: NSStream, handleEvent eventCode: NSStreamEvent) {
    switch eventCode {
    case .HasBytesAvailable:
        // 读取数据
    case .HasSpaceAvailable:
        // 写入数据
    default:
        break
    }
}

inputStream.scheduleInRunLoop(.currentRunLoop(), forMode: NSDefaultRunLoopMode)
outputStream.scheduleInRunLoop(.currentRunLoop(), forMode: NSDefaultRunLoopMode)
inputStream.open()
outputStream.open()

func acceptConnection() {
    // 接受新连接
}

func closeConnection() {
    // 关闭连接
}