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Posted to users@tomcat.apache.org by Bjoern Abt <bj...@inode.ch> on 2003/03/14 10:22:34 UTC
Loading dll for servlets
Hello List,
Background:
I am extending an existing application to the web. The existing application
is written in cobol and compiled to a *.dll on a Windows2000-System. I can
load the dll and go the specific entrypoints, so the existing logic doesn't
have to be rewritten.
My Question:
Is it possible to load an dll into the Tomact-Server, so that its functions
are always accessible to my servlets? I have a terrible overhead in loading
and unloading the dll in every servlet that is accessed. Or does anyone know
another way to do it?
Thanks in Advance
Bjoern Abt
http://www.inode.ch
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Re: Loading dll for servlets
Posted by Bjoern Abt <bj...@inode.ch>.
Hi Pratt,
> Hi,
>
> If you want to hold the loaded dll permanently then you can load in a
> static class & keep it in context and use the same for all the users.
> If they need only for the User Session, then better to load in login and
> unload on session out.
That seems to be exactly what I wanted! Thank you for your help! I think now
i have the primer from where I can start on my own!
Greets
Björn
>
> Hope it may be one useful thought..
>
> Regards,
> Pratt.
>
>
>
> ----- Original Message -----
> From: "Bjoern Abt" <bj...@inode.ch>
> To: "Tomcat Users List" <to...@jakarta.apache.org>
> Sent: Friday, March 14, 2003 3:09 PM
> Subject: Re: Loading dll for servlets
>
> > Hi
> >
> > > Can you eloborate to load the dll in tomcat server?What is the
> > > functionality required ?
> >
> > I need to access the dll's entrypoints from a few servlets. And I don't
>
> want
>
> > to Load the dll to RAM and unload it in every servlet.
> >
> > > Can detail us about overhead of loading and unloading dll in servlets?
> >
> > Hmm, about 5 Seconds in every servlet. I use the runtime.cobload and
> > runtime.cobcancel calls to load.
> >
> > Greets
> >
> > Björn Abt
> >
> > www.inode.ch
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org
> > For additional commands, e-mail: tomcat-user-help@jakarta.apache.org
>
> ---------------------------------------------------------------------
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Re: Loading dll for servlets
Posted by Tomcat-RND <to...@hotmail.com>.
Hi,
If you want to hold the loaded dll permanently then you can load in a static
class & keep it in context and use the same for all the users.
If they need only for the User Session, then better to load in login and
unload on session out.
Hope it may be one useful thought..
Regards,
Pratt.
----- Original Message -----
From: "Bjoern Abt" <bj...@inode.ch>
To: "Tomcat Users List" <to...@jakarta.apache.org>
Sent: Friday, March 14, 2003 3:09 PM
Subject: Re: Loading dll for servlets
> Hi
>
> > Can you eloborate to load the dll in tomcat server?What is the
> > functionality required ?
> I need to access the dll's entrypoints from a few servlets. And I don't
want
> to Load the dll to RAM and unload it in every servlet.
>
> > Can detail us about overhead of loading and unloading dll in servlets?
> Hmm, about 5 Seconds in every servlet. I use the runtime.cobload and
> runtime.cobcancel calls to load.
>
> Greets
>
> Björn Abt
>
> www.inode.ch
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: tomcat-user-help@jakarta.apache.org
>
---------------------------------------------------------------------
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Re: Loading dll for servlets
Posted by Bjoern Abt <bj...@inode.ch>.
Hi
> Can you eloborate to load the dll in tomcat server?What is the
> functionality required ?
I need to access the dll's entrypoints from a few servlets. And I don't want
to Load the dll to RAM and unload it in every servlet.
> Can detail us about overhead of loading and unloading dll in servlets?
Hmm, about 5 Seconds in every servlet. I use the runtime.cobload and
runtime.cobcancel calls to load.
Greets
Björn Abt
www.inode.ch
---------------------------------------------------------------------
To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org
For additional commands, e-mail: tomcat-user-help@jakarta.apache.org
Re: Loading dll for servlets
Posted by Tomcat-RND <to...@hotmail.com>.
hi,
Can you eloborate to load the dll in tomcat server?What is the functionality
required ?
Can detail us about overhead of loading and unloading dll in servlets?
Pls ignore i was wrong ..
Regards,
Pratt.
----- Original Message -----
From: "Bjoern Abt" <bj...@inode.ch>
To: <to...@jakarta.apache.org>
Sent: Friday, March 14, 2003 2:52 PM
Subject: Loading dll for servlets
> Hello List,
>
> Background:
> I am extending an existing application to the web. The existing
application
> is written in cobol and compiled to a *.dll on a Windows2000-System. I can
> load the dll and go the specific entrypoints, so the existing logic
doesn't
> have to be rewritten.
>
> My Question:
> Is it possible to load an dll into the Tomact-Server, so that its
functions
> are always accessible to my servlets? I have a terrible overhead in
loading
> and unloading the dll in every servlet that is accessed. Or does anyone
know
> another way to do it?
>
> Thanks in Advance
>
> Bjoern Abt
>
> http://www.inode.ch
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: tomcat-user-help@jakarta.apache.org
>
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