RE: yielding troubles

["Bilyk, Alex" <ABilyk@...>]

It is not quite clear from your example what Lua threads are involved and the relationship between them. You cannot yield from any Lua threads back to C (for instance the main thread cannot yield). You can only yield from one Lua thread to another Lua thread.

AB

-----Original Message-----
From: Matthew Harmon [mailto:matt@matthewharmon.com]
Sent: Thursday, December 04, 2003 12:16 PM
To: Lua
Subject: yielding troubles

Well... I'm a Lua addict.  Our game engine is more and more becoming just a
set of functions that are called from Lua!

Anyway, I want to have one Lua program call another and execute in the same
thread. For all practical purposes this is essentially like #include-ing
code from another file.  In the child script, I'd like to be able to issue a
yield, but it doesn't seem to be working.  This should give the idea in
pseudo code:

  -- MainScript.lua
  RunScriptInCurrentThread("LoadKeyConfiguration.lua");
  RunScriptInCurrentThread("DoStartupStuff.lua");
  RunScriptInCurrentThread("OpeningSlideshow.lua");
  PrintMessage("Well, that slideshow lasted roughly 4 seconds!");

  -- OpeningSlideshow.lua
  ShowSlide("xxx")
  "yield" for 2 seconds
  ShowSlide("xxx")
  "yield" for 2 more seconds

Is this because the yield is essentially nested two-deep in C calls?  Any
help, thoughts, suggestions would be most appreciated.