Add luasocket support

[Sn0wCrack]

If it would be possible to add luasocket support directly into the BizHawk lua interpreter.

[10ktris]

@Sn0wCrack It's possible to use the 0MQ lua binding with Bizhawk. It's not TCP but better than nothing.

[zeromus]

if bizhawk's lua can load the luasocket dll then we won't be integrating it. i don't know what the status is of bizhawk's lua loading dlls.

[vadosnaprimer]

Using this example, I couldn't access any socket functions:
http://www.lua.org/pil/8.2.html

I put luasocket.dll (and what it comes with) in the EmuHawk.exe folder, and this code

socket = assert(package.loadlib("luasocket.dll", "luaopen_socket"))
socket()

crashes the emu. Without socket() it works, but what's the point then.

Lua version of socket library works fine.

[zeromus]

check stackoverflow, theres a post about it. it isnt easy.

[vadosnaprimer]

If you mean yours, it refers to lua version of sockets (as do all stackoverflow questioins), not dll (that comes with beta releases). There were some general advices how to load dlls, but they refer to very unclear docs that provide zero samples. So the only example code I found didn't work. Right now I'm getting LuaInterface.LuaScriptException: userdata with the above code. And as I said, non-beta releases provide lua version sockets, and it works by simply using socket = require("socket").

[zeromus]

So dont use the beta releases which dont make sense with the instructions I put on stackoverflow.

I just followed my instructions again, and it worked perfectly. I added socket = require("socket"); print(socket); and it worked perfectly. Then, believe it or not, I repeated these steps on the latest git code and it worked perfectly. Why butt your head against it? Do it the way I worked out.

[vadosnaprimer]

I know this one works. But you mentioned loading luasocket.dll, and that's what I also tried.
"socket.lua": http://files.luaforge.net/releases/luasocket/luasocket/luasocket-2.0.2
"luasocket.dll": http://files.luaforge.net/releases/luasocket/luasocket/luasocket-2.0-beta2-win32

Yes, the first one still has core.dll, but it also has sockets.lua, and it's exactly what allows plugging it in via socket = require("socket"). The second one only has luasockets.dll, so it requires precisely loading the dll itself, and it's what's not working. I honestly don't care as long as there's a way to use sockets with no problem. But the issue addresses embedding luasockets.dll, and you said we might be embedding it if it doesn't load already. So it's funny: it doesn't quite load, but you can use sockets the other way, which is probably what people don't want, but I don't know for sure.

[zeromus]

I don't care why one works or doesn't either, as long as one of them works, somehow. Our lua is garbage. All lua is garbage. It's a miracle if a module EVER works, ANYWHERE. This bug is old and predates my discovery there's another way besides loading the dll to get luasockets running. Who cares about the damn dll.

[YoshiRulz]

see #1080