🚀 go-pugleaf

An access violation occurs where?

Doesn't look like it would happen in the code you presented, unless you have 
the same appl accessing that routine, and some of the items passed in via 
pointer are being freed underneath one of the invocations by a thread that 
used a different invocation...

"Colin B Maharaj" <noreply@myhost.com> wrote in message 
news:4795f94a$1@newsgroups.borland.com...
> Hi all,  I wrote this sorting DLL years ago
> works fine and all. However recently I started
> using the DLL more than once at a time, via
> the current win user and a web user.
>
> This is a sorting DLL.
> However whenever, the web or win user process
> start and concurrency begins, and ends an access
> violation ensues.
>
> Here is the DLL wrapper code
>
>
>
> //---------------------------------------------------------------------------
> // The procID and Sequence number are to make
> // unique temporary file sets in the DLL
> // so file names would not collide in the sorting
> // process.
> //---------------------------------------------------------------------------
>
> typedef void (__stdcall *lpSortWrapperDLL)(char *, int, int, char *, char 
> *);
>
>
> void SortWithDLL(char *cmdline,  int procID, int SeqNo, char *InF, char 
> *OutF)
> {
>   HINSTANCE lpDLL = LoadLibrary("CTSORT.DLL");
>   lpSortWrapperDLL SortWrapperDLL=NULL;
>
>   if (lpDLL)
>   {
>       SortWrapperDLL = (lpSortWrapperDLL) GetProcAddress(lpDLL, 
> "SortWrapperDLL");
>       if (SortWrapperDLL) SortWrapperDLL(cmdline, procID, SeqNo, InF, 
> OutF);
>
>     if (!SortWrapperDLL)
>     {
>       ErrorMessage("Function not found in DLL!");
>     }
>
>     FreeLibrary(lpDLL);
>   }
>   else
>   {
>     ErrorMessage("CTSORT.DLL is needed.");
>   }
> }