Re: LoadLibrary call hangs ..sometime

From:

=?Utf-8?B?R3VydQ==?= <Guru@discussions.microsoft.com>

Newsgroups:

microsoft.public.vc.language

Date:

Mon, 28 May 2007 00:28:01 -0700

Message-ID:

<AA4F6087-211C-4B1C-AD69-3FE3D6239F46@microsoft.com>

Ok I forgot to mention I ve a class in this dll for which I ve static object
for that class
besides my dll have only 2 interface funcitons 1)Init() 2)Run(). The code
for them is something like this...

static BDRimLoad *myLoad = NULL;

extern "C" {
#if defined(WIN32)
    __declspec(dllexport) IMServiceFunc::InitReturnCode init (void);
    void __declspec(dllexport) execute (IMServiceFunc::ExecuteInfo ei);
#else
    IMServiceFunc::InitReturnCode init();
    void execute(IMServiceFunc::ExecuteInfo ei);
#endif
}

Once my dll is loaded i get the address of Init and Run using GetProcAddress
and call them which internally calls ..

Thanks once agin for your comments and waiting for more..

"Guru" wrote:

Thanks for the reply, actually I'm doing nothing in DllMain..this is what my
code is..

#if defined(WIN32)
BOOL WINAPI DllMain( HANDLE hModule,
                       DWORD ul_reason_for_call,
                       LPVOID lpReserved)
{
    switch (ul_reason_for_call)
    {
        case DLL_PROCESS_ATTACH:
        case DLL_THREAD_ATTACH:
        case DLL_THREAD_DETACH:
        case DLL_PROCESS_DETACH:
            break;
    }
    return TRUE;
}
#endif

"Alexander Grigoriev" wrote:

These restrictions also apply to static objects initialization, because it's
done in DllMain context.

"Igor Tandetnik" <itandetnik@mvps.org> wrote in message
news:%23ivy8bGoHHA.1244@TK2MSFTNGP04.phx.gbl...

What does your DLL do in DllMain? There are few things that are safe to do
in DllMain, and doing unsafe things often results in a deadlock. If you
perform some complex initialization in DllMain, consider creating a
separate initialization function and requiring your client to call it
right after loading your DLL.
--
With best wishes,
Igor Tandetnik

With sufficient thrust, pigs fly just fine. However, this is not
necessarily a good idea. It is hard to be sure where they are going to
land, and it could be dangerous sitting under them as they fly
overhead. -- RFC 1925