Re: Coroutines in Lua

[Roberto Ierusalimschy <roberto@...>]

Coroutines is in our wish-list for Lua 4.1. Because there is no ANSI way to 
implement them, we will not put them inside Lua, but we want to make very 
easy to implement them outside Lua. We are planning to add built-in support 
for multiple Lua stacks, so you will not have to worry about the GC 
collecting things from suspended threads. 

Your approach ("I did not have to change anything at all in the Lua source 
code. I have simply registered three functions [...]") is what we have in 
mind. But there is still a long way to define the best API to support 
different implementations and coroutine "styles" (and, of course, to easy 
the task of those implementing real multi-thread in the language). 

-- Roberto