Re: [Cppcms-users] per request data storage?

[Shiv S. D. <shi...@gm...>]

You can use something like Redis for this which is in-memory database.


On Fri, Dec 6, 2013 at 11:02 AM, Heiko Irrgang <hi...@93...> wrote:

> Hi,
>
> well, thats exactly the point, i am not storing the session in a
> database and therefor i do not want to save things like user password in
> the browser cookie.
>
> using a database for session storage would definately be an option, but
> as far as i see, this involves dynamic linking, i do not want this, when
> my project is near to finish, i will get a commercial license and link
> everything into a single file, having some extra files in the filesystem
> is not an option.
>
> any way to implement db session without dynamic linking?
>
> Kind regards,
> Heiko
>
> On Fri, Dec 06, 2013 at 12:25:11PM +0800, 陈抒 wrote:
> > 1. You can save a key-value data structure in singleton application
> object,
> > key will be user id, value can be any user-specific data.
> > But if you do this, you actually implement your own version of user
> > session. Why not use cppcms session?
> >
> > 2. If the web server has session, it's not stateless anymore. When
> > clustering several web servers together to do load balance and to prevent
> > single point of failure, sync these session between these web servers are
> > important and hard job. So my way is to avoid use session, just use
> > database cluster or cache server to hold session values.
> >
> >
> > Dean Chen
> > Best regards
> > http://blog.csdn.net/csfreebird
> >
> >
> > On Fri, Dec 6, 2013 at 2:38 AM, Heiko Irrgang <hi...@93...> wrote:
> >
> > > Hi,
> > >
> > > thanx, i thought about singleton, but wouldn't this be application
> wide?
> > > So if i store user information in a singleton, everyone would count as
> > > that user?
> > >
> > > Kind regards,
> > > Heiko
> > >
> > > On Fri, Dec 06, 2013 at 12:08:05AM +0800, 陈抒 wrote:
> > > > Not sure the different locations mean what? Different web URLs?
> > > > If you want to save something in web app, in my way, I usually
> create a
> > > > singleton object called my_app, you could use any singleton
> technology to
> > > > create it. And save the variables that you want to cache and share
>  as
> > > the
> > > > my_app object's member variable.
> > > > For multi-thread protection, use boost::mutex to protect them.
> > > >
> > > >
> > > > Dean Chen
> > > > Best regards
> > > > http://blog.csdn.net/csfreebird
> > > >
> > > >
> > > > On Thu, Dec 5, 2013 at 11:45 PM, Heiko Irrgang <hi...@93...> wrote:
> > > >
> > > > > Hi,
> > > > >
> > > > > hm.. maybe i'm missing something here... i do not want to store
> full
> > > > > user information in the session cookie, i just want to safe it
> > > somewhere
> > > > > for the current request, so i do not re-re-re-re-read it from the
> > > > > database, just because i need it on 5 different locations.
> > > > >
> > > > > i already have a cookie session running, but it only holds the
> user id
> > > > > and a usertoken.
> > > > >
> > > > > What i would need is some storage, that is neither file/cookie
> based
> > > and
> > > > > does not interfere with the session.
> > > > >
> > > > > Pretty much like some local variables in the actual application
> > > instance,
> > > > > but on a point where i do not have this application instance.
> > > > >
> > > > > Is something like this available, or do i have to give the
> application
> > > > > instance as parameters to every function that might need
> information
> > > > > limited to the current request?
> > > > >
> > > > > Maybe i'm just thinking too much php here ;)
> > > > >
> > > > > Thanx in advance,
> > > > > Heiko
> > >
> > >
> > >
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> --
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-- 
Respect,
Shiv Shankar Dayal