ATL / WTL / STL

ThatsAlok12-Dec-04 20:02

ThatsAlok

12-Dec-04 20:02

Export the varible tooo

-----------------------------
"I Think this Will Help"
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Alok Gupta
visit me at http://www.thisisalok.tk

AghaKhan14-Dec-04 14:39

AghaKhan

14-Dec-04 14:39

Define in stdafx.h
What is the problem?

Agha Khan

ThatsAlok15-Dec-04 18:09

ThatsAlok

15-Dec-04 18:09

I think Me Sollium want to export that in DLL

-----------------------------
"I Think this Will Help"
-----------------------------
Alok Gupta
visit me at http://www.thisisalok.tk

AghaKhan16-Dec-04 3:23

AghaKhan

16-Dec-04 3:23

The answer is also very simple. As we know that define just replaces the actual content what we have defined. It CAN NOT be exported.
Poke tongue | ;-P

Agha Khan

ThatsAlok16-Dec-04 16:56

ThatsAlok

16-Dec-04 16:56

YEah you are write but what about ENUM in Com DLL.

-----------------------------
"I Think this Will Help"
-----------------------------
Alok Gupta
visit me at http://www.thisisalok.tk

User 21559717-Dec-04 21:10

User 215597

17-Dec-04 21:10

enum are more like constants whereas #define are macros that get expanded during compilation time.
I hope you will get what I am saying

Have a great day ahead!
Regards,
Sohail Kadiwala
(My Blog - http://blogs.wdevs.com/sohail/[^])

modified 21-Apr-21 21:01pm.

ThatsAlok17-Dec-04 22:07

ThatsAlok

17-Dec-04 22:07

Sorry Sohail Sir,
i Understand the Difference Between TWO

-----------------------------
"I Think this Will Help"
-----------------------------
Alok Gupta
visit me at http://www.thisisalok.tk

youyo30-Dec-04 21:19

youyo

30-Dec-04 21:19

export them is not suitable. you can define them in the header file.
when you use the dll ,you can include the header file first.

Happy new year!

Using a timer

dSolariuM11-Dec-04 2:39

dSolariuM

11-Dec-04 2:39

Hello everyone
I am creating a DLL using ATL and I want to know
How can I use a timer in my DLL?
Best regards
Thanks.

Re: Using a timer

ThatsAlok12-Dec-04 20:01

ThatsAlok

12-Dec-04 20:01

you can create Hidden window in your dll that will handle the above cause

-----------------------------
"I Think this Will Help"
-----------------------------
Alok Gupta
visit me at http://www.thisisalok.tk

What's the best way

bs197710-Dec-04 11:20

bs1977

10-Dec-04 11:20

I'm developing a multithreaded application mix of MFC & STL stuff using MSVC and having so many DLLs integrated in it .
I have very small question. I want to have little structure(about 3 elements ) associated with each thread and needs to be exported to all DLL in system.
So what's the best way to implement by having simplest old way to have a array of structure/class or have list/map template of structure/class.
Can someone please suggest the best way to go ?

thanks
ben

Re: What's the best way

AghaKhan14-Dec-04 14:46

AghaKhan

14-Dec-04 14:46

It is such a simple question, perhaps I am not following. You may pass any data to any thread even a whole class or more and inside that class cast to that struct or class. By nature all thread functions are static so you have to cast incoming data to desire class.

Agha Khan

ATL / IIS / EXE ???

Peter Weyzen10-Dec-04 7:49

10-Dec-04 7:49

howdy all-

My current problem: I've got this ISAPI DLL, which does some stuff and generates XML. It's written in C++, uses MSXML3, and run's inside DLLHOST...

Oh, and it leaks memory.

(1) Is there a good way to debug this?

(2) If I could convert this to a stand-alone exe, I could attach a debug memory manager.... Can this be done -- can I make an ATL/IIS server extension which is also an exe. (is this what's called an out-of-process server?)

Thanks in advance!
Regards
-peter

P.S. I think I do ask some of the more esoteric questions on this site.... I hope someone has some help or direction for me. Thanks

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br />
Peter Weyzen<br />
Staff Engineer<br />
<A HREF="http://www.santacruznetworks.com">Santa Cruz Networks</A>

Gerald Schwab10-Dec-04 8:06

Gerald Schwab

10-Dec-04 8:06

Compile a debug version of your DLL and attach your debugger to DLLHOST.exe. Debug as usual.

Peter Weyzen10-Dec-04 8:08

10-Dec-04 8:08

oh...

I wish it were that simple....
But tracking memory leaks is the real problem...

and it's not MFC....

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br />
Peter Weyzen<br />
Staff Engineer<br />
<A HREF="http://www.santacruznetworks.com">Santa Cruz Networks</A>

Gerald Schwab10-Dec-04 8:17

Gerald Schwab

10-Dec-04 8:17

I'm not sure I understand what your getting at. You asked "Is there a good way to debug this?". I explained how to do this. Why is it any different to track memory leaks in a dll? What does MFC have to do with anything?

Peter Weyzen10-Dec-04 8:21

10-Dec-04 8:21

Forgive me for my ignorance in this arena.

It's code that was kinda thrown at me, and finally given all responsibility to figure out.

I'll be more specific. It's an ISAPI DLL which mines data out of our servers, generates some XML and passes it back to IIS for display.

Upon repeated use, it leaks memory...

My attempts to locate the memory leak are failing, and i am flailing Smile | :)

Maybe you could tell me the best way to detect memory leaks in a situation like this?

Thanks
-peter

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br />
Peter Weyzen<br />
Staff Engineer<br />
<A HREF="http://www.santacruznetworks.com">Santa Cruz Networks</A>

Gerald Schwab10-Dec-04 8:43

Gerald Schwab

10-Dec-04 8:43

Well, I'm no memory leak detection expert, so you might want to start with this:
http://msdn.microsoft.com/library/en-us/vsdebug/html/vxconDetectingIsolatingMemoryLeaks.asp?frame=true[^]

Peter Weyzen10-Dec-04 8:48

10-Dec-04 8:48

Thanks for the reference.

I've always wondered where that came from. It's something you get by default using MFC. (that's where my MFC remark came from).

Anyhow -- thanks
-peter

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br />
Peter Weyzen<br />
Staff Engineer<br />
<A HREF="http://www.santacruznetworks.com">Santa Cruz Networks</A>

dcudev.lcr15-Dec-04 8:31

dcudev.lcr

15-Dec-04 8:31

Some memory leak tips, start looking for misbehaving BSTRS, unreleased components and unfreed mallocs.

Also you can use the perfmon and taskmanager to monitor the memory as you debug...

sun.lcr

Peter Weyzen15-Dec-04 9:05

15-Dec-04 9:05

I should assert here that I undersand the basics of memory leak issues. But I need "special help" in the area of an IIS addin (ISAPI DLL).

What's special about this kinda of app, is:
* you write a dll
* it get's loaded either directly by IIS (inetinfo.exe)
* or indirectly via DLLHOST
* you don't have much control of the environment

All of the standard memory leak issues are covered.
* balancing a delete for every new
* releasing COM stuff

The unknowns are:
* ISAPI DLL issues
* BSTR's
* MSXML3 memory issues

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br />
Peter Weyzen<br />
Staff Engineer<br />
<A HREF="http://www.santacruznetworks.com">Santa Cruz Networks</A>

dcudev.lcr15-Dec-04 9:14

dcudev.lcr

15-Dec-04 9:14

why not write you own dllhost and call/load the isap dll from there. this way you would have complete control of the loading process. as you know by now, the isapi dll is nothing more than a regular dll with a bunch of entry points of which only 2 or 3 are the most important ones.

In any case, you can create a special entry point to fake the call for iis and watch the memory run...

just a thought...

Wink | ;)

sun.lcr

Peter Weyzen15-Dec-04 9:16

15-Dec-04 9:16

Do you know of a good reference "out there somewhere" that details this?

[i have too many tasks on my plate to re-invent this]

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br />
Peter Weyzen<br />
Staff Engineer<br />
<A HREF="http://www.santacruznetworks.com">Santa Cruz Networks</A>

dcudev.lcr15-Dec-04 9:28

dcudev.lcr

15-Dec-04 9:28

not really, I had a similar experience with windows services where they run in the background and are hard to reach via the debugger. I took control of taht by creating a main function that can be compiled into an exe and the service portion is a dll. the main portion had all the serivce handles and that allows me to control what gets loaded where. I also had to spend some three month back and forth with MS but in the final analysis it was my main that really helped me.

I have a book at home that details the isapi ia easy to understand format, i'll get the ref number and email it to you tomorrow...

as they used to say a few months back... hope is on the way....

Smile | :)

sun.lcr

Peter Weyzen15-Dec-04 9:30