I am trying to understand implementations/options for server-side Websocket endpoints - particularly in perl using PSGI/Plack and I have a question: Why are all server-side websocket implementations based around event-driven PSGI servers (Twiggy, Tatsumaki..etc.)?

I get that websocket communication is asynchronous, but a non-event driven PSGI server (say Starman) could spawn an asynchronous listener to handle the websocket side of things. I have seen (but not understood) PHP implementations of Websocket servers, so why cant the same be done with PSGI without having to change the server to an event driven one?

In reply to Server-side Websocket implementations in non-event driven HTTP Server Environments by unlinker

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