[Freeswitch-users] .NET managed code - call count

[Malay Thakershi]

I implemented "public static" option for now. I will let you know what
happens.

But even "private static" option I had was also sharing call counts across
different calls. I am not sure whether logic is buggy or not.

I -- the variable in hangup hook function. Is that OK?

Thanks.

On Wed, Mar 6, 2013 at 9:01 PM, Dave R. Kompel <drk at drkngs.net> wrote:

> **
> There is not any one specific method of keeping a call count in a managed
> module that is correct. It all depends on what you are doing in the code.
>
> Using a private is normally a bad idea since if you are doing this from an
> IAppPlugin interface, and you transfer the call, that instance will go
> away, and you will never decrement it.
>
> If every call is going through this app, then I would use a public static
> int, put the whole thing in a try-catch-finally block and decrement the
> count in the finnaly block, to make sure it executes.
>
> If there is a more complex where the call will get out of your code and
> still be up then use a static Hashtable<Guid>, and put the sessions uuid in
> the hash, and have ether an event consumer loop for a
> channel_hangup_complete remove it, the count of the hashtable should always
> be right, or have an API in the same module IApiPlugin, that you call to
> remove the uuid and set the channels API_HANGUP_HOOK so it gets called
> whenever the channel goes away.
>
> --Dave
>
>  ------------------------------
> *From:* Malay Thakershi [mailto:mthakershi at gmail.com]
> *To:* FreeSWITCH Users Help [mailto:freeswitch-users at lists.freeswitch.org]
> *Sent:* Wed, 06 Mar 2013 11:53:13 -0800
> *Subject:* [Freeswitch-users] .NET managed code - call count
>
>
> Hello,
>
> I have a .NET managed module handling calls transferred to it via dial
> plan.
>
> Now, I would like to maintain concurrent call count and decline the call
> if it has reached certain limit.
>
> What I do is, have a static variable to track this.
> *private static int mIntCurCalls = 0;*
>
> Then, when Run() is executed, I *mIntCurCalls++* after answering the call.
>
> I perform check *if mIntCurCalls > "max allowed calls"* then I play a
> message and hangup.
>
> I *mIntCurCalls--* this when call is hung up.
>
> Since last few days users have been complaining they get "busy" or "number
> not available" when dialing toll-free number.
>
> However, I don't see them getting the message that I have in the code.
>
> Is the method of keeping call count correct?
>
> Thanks.
>
>
>
>
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