The attempt to call a nil value problem
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- Subject: The attempt to call a nil value problem
- From: Tyrael <jerky168@...>
- Date: 2010年9月06日 01:07:10 +0800
Hi
I recently encounter a strange problem: after the program run a long
time, it throw a "attempt to call a nil value" error. I provide a
interface file to the others, they call the Lua api to do some jobs, the
file i provided is like this:
--intf.lua: interface provided by the FW
function spt_doAjob()
return SMF_DoAJob()
end
SMF_DoAJob is also a Lua function, which does a few jobs and then calls
yield to make the coroutine waiting, and it also calls a function
written in C. The others call the spt_doAjob function in there script,
like:
function sf_act()
xxx
spt_doAjob()
xxx
end
but this runs into error after the program runs a long time, it reports
message like "attempt to call a nil value:spt_doAjob". When it happens,
if i change the sf_act() function to the following, it runs right.
function sf_act()
xxx
SMF_DoAJob()
xxx
end
This happens randomly, and i don't find in what condition it will
happen. Any advice given is appreciated.