[OpenSIPS-Users] OpenSIPS 3.0.2 - 'IF' statement doesn't evaluating correctly

[Callum Guy]

Have you matched the dialog before running this check? Just wondering
if one of those values is stale, do the durations match up with
reality for the example calls?

Also maybe rule out type issues with $(dlg_val(dialog_min_time){s.int})

On Tue, 18 Aug 2020 at 17:35, Igor Pavlov <igor.pavlov1987 at gmail.com> wrote:
>
> Hi all, I have found the strange behavior of evaluating boolean value in 'if' statement. Here is the part of my routing script, it handles the BYE msg (I removed real logic and left only xlog).
>
> if ($DLG_lifetime < $dlg_val(dialog_min_time)) {
>     xlog("L_DBG","[$ci] Dialog lifetime less then dialog_min_time ; duration: $DLG_lifetime ; $dlg_val(dialog_min_time)");
> } else {
>     xlog("L_DBG","[$ci] Dialog lifetime greater then dialog_min_time ; duration: $DLG_lifetime ; $dlg_val(dialog_min_time)");
> }
>
> The '$dlg_val(dialog_min_time)' setup during INVITE handling, after create_dialog().
>
> Under load I see that '$DLG_lifetime < $dlg_val(dialog_min_time)' is not evaluating correctly. Here is some logs:
>
> opensips[1589]: [56276459-0-1637911800 at 1.1.1.48] BYE from 2.2.2.143:5060, dialog_min_time: 30, duration: 161, status: 5
> opensips[1589]: [56276459-0-1637911800 at 1.1.1.48] Dialog lifetime less then dialog_min_time ; duration: 161 ; 30
>
> Here is DLG_lifetime = 161 and $dlg_val(dialog_min_time) = 30 (161 < 30 ???)
>
> Another example:
>
> opensips[1590]: [58514636-0-1638386270 at 1.1.1.48] BYE from 1.1.1.50:5060, dialog_min_time: 15, duration: 1212, status: 5
> opensips[1590]: [58514636-0-1638386270 at 1.1.1.48] Dialog lifetime less then dialog_min_time ; duration: 1212 ; 15
>
> Here is DLG_lifetime = 1212 and $dlg_val(dialog_min_time) = 15 (1212 < 15 ???)
>
> My OpenSIPS version is:
>
> version: opensips 3.0.2 (x86_64/linux)
> flags: STATS: On, DISABLE_NAGLE, USE_MCAST, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, HP_MALLOC, DBG_MALLOC, FAST_LOCK-ADAPTIVE_WAIT
> ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535
> poll method support: poll, epoll, sigio_rt, select.
> git revision: 3a8f6f137
> main.c compiled on 22:11:53 Jul 20 2020 with gcc 8
>
> --
>
> Best regards,
> Igor Pavlov
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> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users

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