[omnetpp] OMNeT++ 4 Request

[Christoph Mayer <mayer at xxx>]

Hi,

I have a small request for OMNeT++ 4. A small change to the file loadlib.h:

original:
if (!dlopen(libfname.c_str(),RTLD_NOW))

request:
if (!dlopen(libfname.c_str(),RTLD_NOW | RTLD_GLOBAL))

Why do I need this or think it is useful:
I am using the load-libs command in omnetpp.ini to dynamically load a 
module from a shared library A. This module in A will load dynamically 
futher shared libraries B_1 ... B_n at a later point of time. Using the 
RTLD_GLOBAL flag all symbols from A are inserted into the symbol cache 
of the process, allowing later libraries B_i to use functionality from 
A. This is not possible when only using RTLD_NOW, as this will only 
resolve symbols currently needed. Therefore there is no way to resolve 
symbols needed later.

I would be happy if this makes its way into OMNeT++ 4. I can't imagine a 
use case where this could break existing implementations.

Best regards,
Chris
-- 
Dipl.-Inform. Christoph P. Mayer
Institute of Telematics, University of Karlsruhe (TH)
Zirkel 2, 76128 Karlsruhe, Germany
Phone: +49 721 608 6415, Email: mayer at xxx
Web: http://www.tm.uka.de/~mayer/
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