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Re: asyncio: wrapping a subprocess in a server

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  Re: asyncio: wrapping a subprocess in a server Akira Li <4kir4.1i@gmail.com> - 2014-06-26 00:40 +0400

#73588 — Re: asyncio: wrapping a subprocess in a server

David Farler <accumulator@icloud.com> writes:

> Hi all,
>
> I'm trying to vend some kind of server that spawns a client-unique
> subprocess when a client connects. The server acts as a middleman,
> receiving structure messages from the client, sending input to the
> subprocess, and packaging up subprocess data before sending back to
> the client. The connection is long-lived and the client can continue
> to send "requests". If the subprocess crashes or dies, the server
> should be able to revive it transparently.
>
> I know how to separately create server and subprocess protocols and
> having the event loop run either until completion, but what is the
> best way to chain two protocols together?
>
> || Client || <~~ TCP ~~> || Server <--> Subprocess ||

Here's an example that uses Twisted http://stackoverflow.com/a/11729467

  javascript client <--> websocket <--> twisted server <--> subprocess

Do you want the same but using asyncio module?


--
Akira

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