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Qt-interest Archive, May 2007
in qt is there any concepts like , memoryMapping & shared memory in VC++


Message 1 in thread

hi ,all
   in qt is there any concepts like , memoryMapping  & shared memory in VC++

just i want to process 2GB file.

please give suggetions..

D. Anil kumar

Every success has a story of great failure.
So don't stop with failure where
Success comes after failure.

Message 2 in thread

Anil...

 

Just some friendly advice... Your asking a lot of questions that are
along the lines of

 

I need a XXXXX component that I don't want to implement myself... No one
else may need it the way I do, but someone please tell me how to do it
in QT.

 

This is not a C++ instructional forum, please try to implement these
things yourself, follow your own signature..

 

Have you tried to implement a memory mapper? Or implement a shared
memory system?  Did you fail?  Did you get stuck?

 

Or was it, someone at your job say we probably need this, go look into
it, and your first response is, can I get it for free from QT without
reading the docs or googling.

 

Just my opinion,  take it with a grain of salt if you want, but
eventually people will put you in the "Memory Releasing tool" guy that
we had about 8-10 months ago.


Scott

________________________________

From: anil kumar [mailto:d.anil@xxxxxxxxxxxxx] 
Sent: Thursday, May 10, 2007 9:15 PM
To: qtForum
Subject: in qt is there any concepts like , memoryMapping & shared
memory in VC++

 

hi ,all

   in qt is there any concepts like , memoryMapping  & shared memory in
VC++

 

just i want to process 2GB file.

 

please give suggetions..

 

D. Anil kumar

 

Every success has a story of great failure.
So don't stop with failure where
Success comes after failure.


Message 3 in thread

Anil,

The wording of your question suggests to me that you are thinking that 
Qt might somehow implement its own native mechanism for mapping memory. 
This is not the case. However, the commercial version of Qt (ar least) 
does indeed provide a platform-independant wrapper for interfacing with 
the memory mapping scheme of the underlying OS.

Its called QtSharedMemory so I suggest you take a look around the Qt web 
site.

John

Scott Aron Bloom wrote:

> Anil…
>
> Just some friendly advice… Your asking a lot of questions that are 
> along the lines of
>
> I need a XXXXX component that I don’t want to implement myself… No one 
> else may need it the way I do, but someone please tell me how to do it 
> in QT.
>
> This is not a C++ instructional forum, please try to implement these 
> things yourself, follow your own signature..
>
> Have you tried to implement a memory mapper? Or implement a shared 
> memory system? Did you fail? Did you get stuck?
>
> Or was it, someone at your job say we probably need this, go look into 
> it, and your first response is, can I get it for free from QT without 
> reading the docs or googling.
>
> Just my opinion, take it with a grain of salt if you want, but 
> eventually people will put you in the “Memory Releasing tool” guy that 
> we had about 8-10 months ago.
>
>
> Scott
>
> ------------------------------------------------------------------------
>
> *From:* anil kumar [mailto:d.anil@xxxxxxxxxxxxx]
> *Sent:* Thursday, May 10, 2007 9:15 PM
> *To:* qtForum
> *Subject:* in qt is there any concepts like , memoryMapping & shared 
> memory in VC++
>
> hi ,all
>
> in qt is there any concepts like , memoryMapping & shared memory in VC++
>
> just i want to process 2GB file.
>
> please give suggetions..
>
> D. Anil kumar
>
> Every success has a story of great failure.
> So don’t stop with failure where
> Success comes after failure.
>

--
 [ signature omitted ] 

Message 4 in thread

Google is your friend.

http://www.google.com/search?q=%22shared+memory%22+site%3Adoc.trolltech.
com

Cheers,
Peter

> > in qt is there any concepts like , memoryMapping & shared memory in
VC++
> >
> > just i want to process 2GB file.
> >
> > please give suggetions..
> >
> > D. Anil kumar
> >
> > Every success has a story of great failure.
> > So don't stop with failure where
> > Success comes after failure.

(please change your signature, if you're not willing to take it by
heart)

--
 [ signature omitted ]