May 15th Tuesday (五月　十五日　火曜日)

最新推荐文章于 2024-10-22 17:20:22 发布

原创最新推荐文章于 2024-10-22 17:20:22 发布 · 666 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#serialization #object #socket #methods #class #function

本文介绍如何创建广播套接字并设置SO_BROADCAST选项以发送广播消息。通过构建特定的消息对象层次结构，实现了消息的序列化与反序列化功能。目前仅实现了TextMsgObj类。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

The question about how to make a broadcast socket is solved. Firstly, create a socket with SOCK_DGRAM;
secondly, set the socket's socket level and SO_BROADCAST option to 1. So, you can use it to broadcast your
messages.

So, I constructed a thread class specially in order to broad cast a message at intervals. For convenience,
I also wrote some auxiliary functions and create a message object hierarchical classes. The root of that
message object is just used a interface in which I define message type contants and some methods must be
implemented by it's son, grandson, or grand-grand-son.

Now only the TextMsgObj class was just implemented. This class has two special methods: serialize(),
deserialize(). They is used for serialization of a instance. But my defined serialization is just to
translate a message object into a string representation. The reason is that I can use sendto() send that.

The str() function can translate a object into a human readable string. The eval() function can retore
a object from a string.