Re: dofile() limits...
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- Subject: Re: dofile() limits...
- From: "John Passaniti" <jmp@...>
- Date: 2000年8月28日 10:33:21 -0400
Luiz Henrique de Figueiredo wrote:
> >Is there some limit that we aren't aware of? Stacks,
> >global namespaces, etc.?
>
> There are no limits on the number of times dofile may
> be executed.
As a side note to the above, although it looks like you can call dofile()
as many times as you want sequentially, I think there is a potential limit
on the number of *nested* dofile() calls. Here's a portion of the code at
the end of lua_dofile() in Lua 4.0:
luaZ_Fopen(&z, f, source);
status = do_main(L, &z, bin);
if (f != stdin)
fclose(f);
During the time that do_main() is executed, the file handle f is open. If
there are nested do_file() calls, then the user will be limited by number
of open files the operating system provides. This doesn't seem to be the
case for the problem described above, but is a limit you may want to either
document as system dependent or remove by reading the whole file in as a
string and closing the file prior to do_main().