[sr-dev] [kamailio] tmx: Fix relayed_replies counter (#420)

[Stefan Mititelu]

Consider the simple timeout scenario:
```
                     Messages
INVITE ---------->      1             
407 <----------         1   
ACK ---------->         1              
INVITE ---------->      1           
100 <----------         1      
180 <----------         0    
183 <----------         0       
408 <----------         1
ACK ---------->         1
```   
In the current implementation, running _kamctl fifo get_statistics tmx:_ on a fresh kamailio prints:
```
...
tmx:local_replies = 2
tmx:received_replies = 1
tmx:relayed_replies = 18446744073709551615
```
After this patch:
```
...
tmx:local_replies = 2
tmx:received_replies = 1
tmx:relayed_replies = 0
```
Fix the above by counting the relayed_total and substracting the relayed_local.
You can view, comment on, or merge this pull request online at:

  https://github.com/kamailio/kamailio/pull/420

-- Commit Summary --

  * tmx: Fix relayed_replies counter

-- File Changes --

    M modules/tm/t_reply.c (5)
    M modules/tm/t_stats.c (1)
    M modules/tm/t_stats.h (6)
    M modules/tmx/tmx_mod.c (7)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/420.patch
https://github.com/kamailio/kamailio/pull/420.diff

---
Reply to this email directly or view it on GitHub:
https://github.com/kamailio/kamailio/pull/420
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