Re: Interrupting the Lua VM from C (Lua 3.1)

[Cyril Zorin <cyril.zorin@...>]

On 21-May-06, at 4:16 PM, David Jones wrote:

> On May 21, 2006, at 19:52, Cyril Zorin wrote:
>
> > Hullo!
> >
> > Say I have two functions, one Lua function called MyLuaFunc, and a  
> > C function called my_c_func(). Now, suppose that MyLuaFunc calls  
> > my_c_func() -- is there a way, from inside my_c_func() to make it  
> > so the Lua VM returns from MyLuaFunc right after my_c_func() is  
> > done? In other words
> > -- some code
> > my_c_func()
> > -- I want my_c_func() to tell the Lua VM to return from MyLuaFunc  
> > right after my_c_func() returns
> > -- more code
> >
> > Is there a way to do this?
> Use setjmp in MyLuaFunc and longjmp in _c_func.  Can't say I  
> recommend it though.  It would be simpler to just have _c_func  
> return some value to MyLuaFunc that indicated that it wanted an  
> immediate return to Lua.
Unfortunately I have no control over the Lua code. I'm just  
implementing the C stubs, and there's a stub that requires that a Lua  
function returns after the C stub returns.
> David Jones