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luvit / luvit

Lua + libUV + jIT = pure awesomesauce
https://luvit.io/
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Is it ok to use lua rocks inside luvit applications? #477

Closed voronianski closed 10 years ago

voronianski commented 10 years ago

For example from https://rocks.moonscript.org/ or http://luarocks.giga.puc-rio.br/ such as modules for operating with mongodb, etc?

rphillips commented 10 years ago

most of the rocks or luarocks modules are not going to be able to enter the libuv event loop. A native driver would probably be preferable.

voronianski commented 10 years ago

@rphillips do you mean native C driver for example (https://github.com/mongodb/mongo-c-driver)?

creationix commented 10 years ago

My experience is most existing rocks assume blocking I/O which isn't compatible with the luvit event loop. Also the way rocks are package often isn't compatible with the luvit module system. Personally, I would write a mongo driver in pure Lua.

There is a company using my luv project (same event model as luvit, but much more minimal) that also needs to talk to mongo. If I remember correctly, they are using node for the mongo part and talk to it through some rest interface from Lua. On Jul 14, 2014 3:52 AM, "Dmitri Voronianski" notifications@github.com wrote:

@rphillips https://github.com/rphillips you mean native C driver - https://github.com/mongodb/mongo-c-driver ?

— Reply to this email directly or view it on GitHub https://github.com/luvit/luvit/issues/477#issuecomment-48877552.

voronianski commented 10 years ago

@creationix thanks for this info. What do you think about https://github.com/dvv/luvit-worker it states like:

"Unblock" blocking API

creationix commented 10 years ago

I know that was an experiment Vladimir Dronnikov did. I seem to remember it worked fairly well for him. But even if it works as described, using threads so you can use blocking libraries in a non-blocking event loop won't scale well unless the thread count stays low. It depends on your use case and needs.

On Mon, Jul 14, 2014 at 7:57 AM, Dmitri Voronianski < notifications@github.com> wrote:

@creationix https://github.com/creationix thanks for this info. What do you think about https://github.com/dvv/luvit-worker it states like:

"Unblock" blocking API

— Reply to this email directly or view it on GitHub https://github.com/luvit/luvit/issues/477#issuecomment-48896228.