> Hi all
>
> I am writing an app that requires me to only let a certain number of users
> log in at the same time.
> I am using D5, Firebird and IBO for this.
>
> I have a user name and password that gets used to automatically log into
> firebird.
> I then have a table with users in it that I use to verify if the entered
> user name and password are valid.
> When this gets gone I update a flag that says that the user is logged in.
> When they log out the flag then gets updated to false.
> I use a query to do all this.
>
> 1) What I want to do is only allow a certain amount of users to access the
> program at once.
>
> 2) My other concern is what happens if the machine bombs out and the
logged
> in flag never gets reset, how do I know if the logged in flag is still
> valid.
>
> Any help and suggestions would be much appreciated.
>
>
>
>
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