Article View: comp.os.msdos.programmer
Article #7476Problem in TopSpeed DOS Extender
From: Alex Yakovlev
Date: Wed, 06 Jan 1993 11:47
Date: Wed, 06 Jan 1993 11:47
47 lines
1941 bytes
1941 bytes
Dear colleagues, we have the TopSpeed C/C++ System Ver 3.02
with TopSpeed DOS Extender - legal copy, don't worry. I use
dynamic link libraries (DLL), created by TopSpeed in extended
memory model (by the way, i've had to correct the system file
TSPRJ.TXT before i could create DLL's in this model - it's
obvious JPI's mistake!). When i attempted to use *MANUAL*
loading/unloading DLL's, i met serious problem. I've reduced
my program to the following pair of texts:
My main text looks like as:
#include <stdio.h>
#include <conio.h>
#include <tsxlib.h>
typedef unsigned (* Function) (void);
static Function func;
static unsigned handle, res;
void main (void)
{
while (getch() != 033)
{
handle = LOADMODULE("Drv");
func = (Function) GETPROCADDR("_Proc", handle);
res += func();
UNLOADMODULE(handle);
printf("%d\n", res);
}
}
And DLL-text, named "Drv.c", is very simple:
unsigned Proc(void) {return 1;}
The main program results in General Protection Fault on the
15'th pass through the loop. I think, it is connected with an
incorrect behaviour of UNLOADMODULE. May be, it is necessary
to pass some other parameter, not a handle, into this
function?
I'm sure, there are experienced people, who use TopSpeed DOS
Extender's DLL's in such a way. Help me, please!
--
Alex Yakovlev
Computing Center of Russian Academy of Sciences
Moscow, Russia
Internet: yak@sms.ccas.msk.su
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Path: arc1-ca.pugleaf.net!sparky!uunet!mcsun!fuug!kiae!demos!newsserv From: Alex Yakovlev <yak@sms.ccas.msk.su> Newsgroups: comp.os.msdos.programmer Subject: Problem in TopSpeed DOS Extender Date: Wed, 06 Jan 93 14:47:18 +0300 Distribution: world Organization: Computing Center of Russian Academy of Sciences Message-ID: <Pn6RiIh4OX@sms.ccas.msk.su> Sender: news-service@newcom.kiae.su Reply-To: yak@sms.ccas.msk.su Lines: 48