Many Thanks! I'll try my best to mention the task clear as sooner as I can ;)

There are 3000 devices(will add to 12000 in near future) in a big area such as NY(just presume).;) Every one minute, device will store a 8 decimal number(like 00004000) in its register. Always, it just store the newest value in register, that means the old value will be overwritten on the next one minute.

So I intend to write a multi-methods program running in server side to get data. But after reading your post, now I think I can just run the program on server machines and store to one database. Is it a better idea?

Besides, The ways which devices connect to server might be diverse like TCP, serial, modem etc.

In reply to Re^2: Why Coro? by Anonymous Monk
in thread Why Coro? by xiaoyafeng

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