From: "Andrej Borsenkow" <Andrej.Borsenkow@mow.siemens.ru>
To: <zsh-workers@sunsite.dk>
Subject: RE: Modules dependencies RE: PATCH: zftp/tcp abstraction
Date: Thu, 14 Jun 2001 13:33:41 +0400 [thread overview]
Message-ID: <000901c0f4b5$1958ecd0$21c9ca95@mow.siemens.ru> (raw)
In-Reply-To: <1010607153157.ZM7731@candle.brasslantern.com>
>
> } One question - I do not quite understand logic in load_module.
> It looks like
> }
> } if module not found
> } load module
> } load module
> }
> } One of these 'load module' looks redundant?
>
> Look closely at the `if module not found' block. It's possible that the
> module may be linked but not loaded (no "handle") in that block. In that
> case a second call to load_module() will find the module, but still needs
> to perform the actual loading.
>
No, I still do not understand it. The "if no found" block is basically just
an abridged version of what happens after. Moreover, remembering what Zefram
said: "Problem is you can't call that function without loading the module,
and you can't successfully load the module until you've got that
information." And look what happens here:
if (!(node = find_module(name, 1, &name))) {
if (!(linked = module_linked(name)) &&
!(handle = do_load_module(name))) {
unqueue_signals();
return 0;
}
i.e. we imediately try to dlopen() a module and in the worst case it
obviously fails because no dependecies were loaded. Something is wrong here.
-andrej
next prev parent reply other threads:[~2001-06-14 9:33 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-06-06 16:26 Clint Adams
2001-06-06 16:34 ` Module namespaces? " Andrej Borsenkow
2001-06-06 16:37 ` Zefram
2001-06-06 18:07 ` Peter Stephenson
2001-06-06 19:12 ` Clint Adams
2001-06-07 8:13 ` Andrej Borsenkow
2001-06-07 9:41 ` Modules dependencies " Andrej Borsenkow
2001-06-07 10:00 ` Peter Stephenson
2001-06-07 10:18 ` Zefram
2001-06-07 13:16 ` Sven Wischnowsky
2001-06-07 13:35 ` Andrej Borsenkow
2001-06-07 15:31 ` Bart Schaefer
2001-06-14 9:33 ` Andrej Borsenkow [this message]
2001-06-26 11:26 ` Andrej Borsenkow
2001-06-26 16:33 ` Bart Schaefer
2001-06-30 11:24 ` Zefram
2001-06-27 13:49 ` Clint Adams
2001-06-27 13:59 ` Peter Stephenson
2001-06-27 14:10 ` Andrej Borsenkow
2001-06-27 14:19 ` Peter Stephenson
2001-06-27 18:42 ` Bart Schaefer
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