Re: how to transfer Lua Function and function params between different Lua state?

[Tim Caswell <tim@...>]

What about lua_xmove? I use it to move my coroutine callbacks to the main thread so they are able to resume the coroutine.

On Nov 26, 2012 8:00 AM, "chuang" <lichuang1982@gmail.com> wrote:

recompile Lua with -fPIC flag and fix it .

On Mon, Nov 26, 2012 at 8:35 PM, chuang <lichuang1982@gmail.com> wrote:

I try to compile it under debian,but get errors:

/usr/bin/ld: /usr/local/lib/liblua.a(lapi.o): relocation R_X86_64_32 against `luaO_nilobject_' can not be used when making a shared object; recompile with -fPIC

/usr/local/lib/liblua.a: could not read symbols: Bad value

collect2: ld returned 1 exit status

make[1]: *** [lanes/core.so] Error 1

On Mon, Nov 26, 2012 at 10:48 AM, chuang <lichuang1982@gmail.com> wrote:

Yeah,cool!That is what  exactly  I want.

On Sun, Nov 25, 2012 at 11:30 PM, Declan White <deco.da.man@gmail.com> wrote:

chuang <lichuang1982 <at> gmail.com> writes:

>
>
> I want to write a C module,when Lua call this module's spawn function,it
create a new Lua state,and the new Lua state can call its Lua function,like
this:
>
>
> require("qnode")
>
> function test(a)
>   print("in test")
>   print(a)
> end
>
> qnode.spawn(test, 100)
>
>
> but,when i review the Lua C API,seems there is no function to get the Lua
function from the Lua stack.
> So,how can I achieve this  purpose?
>
>
>
>

Take a look at LuaLanes ( https://github.com/LuaLanes/lanes ); it has a few C
functions to copy from Lua state to another.
(In fact, it may do exactly what you want your module to do: multiple Lua states
in separate threads with simple communication).

There's also my deep copy function, which you can find on lua-users (
http://lua-users.org/wiki/CopyTable ); although it is Lua-only, so you'll have
to find a way to convert it.

Regards,
Declan White.