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博客园 - 星星之火

Writing own regular expression parser How Regexes Work Content Based Routing Web Services in .NET and J2EE Poly-Engine Crypt String 绝不因寂寞而爱上别人 比尔·盖茨给青年一代的11点忠告 在.Net环境下用C#操纵活动目录 - 星星之火 - 博客园 谁能简单说一下活动目录是什么东西? 广播,多播(二)(Broadcasting, Multicasting) 两毛钱爽一把 可以建立一个Udp Server,接收发往本机所有端口的数据包吗? 广播,多播(一)(Broadcasting, Multicasting) C#异步网络编程 应该由国家建立非法网站数据库 use Helper Classes to simplify you network programming a udp echo client a udp echo server xml digital signature when tcp goes bad, and how to solve it
when udp goes bad and how to solve it(C#)
星星之火 · 2004-06-16 · via 博客园 - 星星之火

1。udp编程特点:
1)udp发送和接收没有缓冲区,发送和接收都是整包,自动保持包的边界
2)udp包的发送和接收不保证一定成功,不保证按正确顺序抵达

2。注意事项
1)在接收udp包时,如果接收包时给定的buffer太小的话,会发生异常,要捕获异常,相应调整buffer的大小,和给出反馈信息。
2)如果不允许丢包的情况出现的话,要有重发机制来保证,如:每发一条信息,只有收到正确的反馈信息的时候,才证明成功,不然就重试一定次数后才证明真正失败
3)可以用SetSockOption方法来设定接收等待时间,以免傻等。