Classes with member co-routines.

[Dan Laufer <dlaufer@...>]

Hello all,

I'm trying to set up a simple task management system, where I'd like to
create task objects, and then per-update interval, resume a member function
of each task as a coroutine.

At the moment, my test code looks like :

-- Lua code starts.

function TestTask:new (o)
    o = o or {
		-- Data

		internalVal = 0,
		taskName = "TestTask"
    }
    setmetatable(o, self)
    self.__index = self
    return o
end

function TestTask:tick()
	while 1 do
		self.internalVal = self.internalVal + 1;
		print("Internal val of TestTask "..self.taskName.." :
"..self.internalVal);
		coroutine.yield();	
	end
end

Task1 = TestTask:new();
Task1.taskName = "Task1";

Task1Co = coroutine.create(Task1:tick());
coroutine.resume(Task1Co);

-- Lua code ends.

Using Lua 5.1w2, this generates the following error :

attempt to yield across metamethod/C-call boundary
stack traceback:
	[C]: in function `yield'
	/LuaClassTest.lua:21.0000: in function `tick'
	/LuaClassTest.lua:28.0000: in main chunk

This happens on the call to coroutine.create()

Anyone got a clue as to what I'm doing wrong here?  I'm hoping it's not my
entire approach...

D.