CFRONT problem with memory

jbolks

I use CFRONT to make a connection with Navision from my Visual basic application. It works good. However, everytime I close the connection and create a new connection there is an additional amount of 92K in use. So if we do this 500 times a day... we have a big problem.

Is there an error in the CFRONT-connection?
Has anybody a solution for this?

Regards
Jan
jbolks@foqus-ict.nl

Alex

Hy Jan
Sorry i cant help you in your question, but you
have maybe some example or ex. sheet, which describe
then connetion between VB and Cside for me ?!

I have only a little bit knowledge in OCX programming !

Thanks Alex

---

mfg Alex

jbolks

When you install CFRONT see the CFRONT.xls example in the cfront-directory.

But are there programmers using CFRONT & Visual Basic ?

db

I'm don't meeted problem like yours.
Try use ReleaseAllObjects then disconected & then coused error.
But I don't thik that is problem of CF, check your code for mem allocation errors, because CF using the same buffer for the same conection (if you don't change server).

jbolks

I just created a small test program with only:

class Connection

public sub connect()
Dim myNav as CFRONT
set myNav = new CFRONT
myNav.releaseAllObjects
myNav.openDatabase(db,0, false)
myNav.closeDatabase()
set myNav = Nothing
end sub

Creating/connect/deleting this class cost everytime 68K memory.

connectServer/disconnectserver cost 76K memory
stopOnAllExceptions = False cost 8K memory
OpenCompany/CloseCompany cost 8k memory
(see for this in the Windows NT Task manager
By the way I've test it with CFRONT 2.01 and 2.0.0

db

I don't know vb but:
class Connection

public sub connect()
Dim myNav as CFRONT
set myNav = new CFRONT
myNav.releaseAllObjects
myNav.openDatabase(db,0, false)
myNav.closeDatabase()

set myNav = Nothing
//did it release myNav ? in C it must be like
free myNav;

end sub

jbolks

Yes... 'set myNav = Nothing' releases myNav (is same as C-statement 'Free myNav')

db

Hmmm, looks like destructor not works.
Try use GetObject or func. that not allocate mem & returs pointer 2 obj.