Re: [Patch] interlibrary dependency parsing in libltdl from CVS HEAD

[Utz-Uwe Haus]

On Sat, Oct 21, 2000 at 03:37:35PM -0500, Albert Chin-A-Young wrote:
> On Sat, Oct 21, 2000 at 03:03:13PM -0500, Albert Chin-A-Young wrote:
> > Quick question though. Where dependency_libs is large and references
> > other .la objects, would it be worthwhile to cache already-dlopen'ed
> > libraries? If so, what would happen if one of the dlopen'ed libraries
> > got updated while the program was running? Because we cached the fact
> > that the library was already loaded, the library would not be reloaded
> > (though I suppose we could use a stat cache on the modification time
> > of the file if necessary).
> 
> Oh, looks like tryall_dlopen already does this.

I haven't looked at the implementation of tryall_dlopen(), but keep in
mind that one might (ugly solaris scenario follows:) update the
<lib>.so.version by overwriting while keeping the symbolic link that is
used to load the library with dlopen(), so a simple stat() may not be
enough.

Later
Utz

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