From:	"Ilya P. Ryzhenkov" <ILYA AT spy DOT isp DOT nsc DOT ru>
To:	djgpp AT delorie DOT com
Date:	Sun, 3 Nov 1996 15:33:18 +0600
Subject:	Re: ANNOUNCE : Dynamic Link Modules first release
Message-ID:	<483B5D76BC@spy.isp.nsc.ru>

> Date sent:      Sun, 3 Nov 1996 11:18:35 +0200 (IST)
> From:           Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>

 
> On Sat, 2 Nov 1996, Ilya P. Ryzhenkov wrote:
> 
> > I've done developing first version of Dynamic Link Modules (DLM)
> > environment for DJGPP.
> 
> If this is similar enough to the Windows DLL mechanism, please consider 
> making it compatible to DLLs.  Thanks.

 This is NOT similar to Windows DLL. In Windows DLL are Dynamicaly 
 Loaded, but not linked. All you have is to get address and call
 a function or reference data VIA POINTER. In DLMs all things are
 run-time linked, so not taking any additional resources in processor
 time for dereferencing pointers etc. Only resources are used is
 memory, taken to store DLM specific data. 
 You need only make a LoadDLM("filename.dlm") call and engine will 
 take care of the rest. There will not be calls like this :
   void (*f)(void);
   f=(void (*)(void))GetSymbolsAddress("_f");
   f(); /* which is call via pointer */
 There will be only 
   extern void f(void);
   ...
   LoadDLM(path);
   ...
   f(); /* which is direct call, not via ptr */
 
 Thanks for feedback.
   
 

======================================================================
Institute of Semiconductors Physics                Ilya P. Ryzhenkov 
Russian Academy of Sciencies             e-mail: ilya AT spy DOT isp DOT nsc DOT ru
Siberian Branch                          http://spy.isp.nsc.ru

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