[SR-Users] Http_async_client stops script execution
Federico Cabiddu
federico.cabiddu at gmail.com
Fri Sep 28 11:29:35 CEST 2018
Hi,
as far as I can see that part has not substantially changed.
Can you try with latest stable release in 5.1?
Best regards,
Federico
On Thu, Sep 27, 2018 at 5:03 PM Denys Pozniak <denys.pozniak at gmail.com>
wrote:
> This example does not work. I do not see log message.
>
> *Example 1.13. http_async_suspend() usage*
>
> ...
> t_newtran();
> http_async_suspend(0);
> # the transaction won't be suspended for the next query
> http_async_query("http://example.com/test.php", "HTTP_REPLY");
> xlog("L_INFO", "query sent\n");
> t_reply("200", "Ok");
>
> ...
>
>
>
>
> 2018-09-27 17:54 GMT+03:00 Federico Cabiddu <federico.cabiddu at gmail.com>:
>
>> What do you mean with "does not work well "?
>> I don't remember any change in that part but anyway you should switch to
>> 5.0 or 5.1 releases, since those are the maintained ones.
>>
>> Best regards,
>>
>> Federico
>>
>> On Thu, Sep 27, 2018 at 4:50 PM Denys Pozniak <denys.pozniak at gmail.com>
>> wrote:
>>
>>> Looks like http_async_suspend(0); does not work well in v4.4.2.
>>>
>>>
>>> https://www.kamailio.org/docs/modules/4.4.x/modules/http_async_client.html#http_async_client.f.http_async_suspend
>>>
>>> 2018-09-27 17:40 GMT+03:00 Denys Pozniak <denys.pozniak at gmail.com>:
>>>
>>>> So my config is ok and I need to add all next logic with call routing
>>>> to route[HTTP_REPLY] ,correct ?
>>>>
>>>>
>>>>
>>>> 2018-09-27 16:42 GMT+03:00 Federico Cabiddu <federico.cabiddu at gmail.com
>>>> >:
>>>>
>>>>> Hi,
>>>>> if you are in a transactional contest (as you are since you are
>>>>> calling t_newtran()), the script execution is suspended, upon calling
>>>>> http_async_query and resumed in the callback route passed as parameter.
>>>>> The instructions after the call to http_async_query are never
>>>>> executed. If you are not in a transactional contest or you explicitly
>>>>> instruct to not suspend the transaction ($http(suspend) = 0,
>>>>> http://www.kamailio.org/docs/modules/devel/modules/http_async_client.html#idm1053320700)
>>>>> they will be executed, and the callback route will be run when the http
>>>>> reply comes. If you want to use http uqeries to retrieve parameters you
>>>>> want to use for your routing logic, you need to suspend the transaction and
>>>>> resume it in the callback.
>>>>> Hope this clarify.
>>>>>
>>>>> Best regards,
>>>>>
>>>>> Federico
>>>>>
>>>>> On Thu, Sep 27, 2018 at 3:36 PM Denys Pozniak <denys.pozniak at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Hello!
>>>>>>
>>>>>> Please help me to understand how http_async_client module behaves. I
>>>>>> am going to use it for call routing according to the http response.
>>>>>>
>>>>>> if (is_method("INVITE")) {
>>>>>> t_newtran();
>>>>>> xlog("L_ERR", "ASYNC0-$fU-$rU-$rm---- \n");
>>>>>> http_set_timeout(1000);
>>>>>> http_set_method("POST");
>>>>>> http_append_header("Content-Type: application/json");
>>>>>> http_async_query("http://10.10.10.10:8080/RPC",
>>>>>> "{\"jsonrpc\": \"2.0\", \"method\": \"ul.lookup\", \"params\":
>>>>>> [\"location\",\"user\"], \"id\": 1}", "HTTP_REPLY");
>>>>>> xlog("L_ERR", "ASYNC1-$fU-$rU-$rm---- \n");
>>>>>> }
>>>>>>
>>>>>> route[HTTP_REPLY] {
>>>>>> xlog("L_ERR", "HTTP_REPLY: ok $http_ok \n");
>>>>>> xlog("L_ERR", "HTTP_REPLY: status $http_rs\n");
>>>>>> xlog("L_ERR", "HTTP_REPLY: body $http_rb\n");
>>>>>> xlog("L_ERR", "HTTP_REPLY: error $http_err)\n");
>>>>>> }
>>>>>>
>>>>>>
>>>>>> In syslog I see HTTP_REPLY log strings with correct response, but do
>>>>>> not see ASYNC1 string and script execution stops.
>>>>>>
>>>>>> What's wrong with this?
>>>>>>
>>>>>>
>>>>>>
>>>>>> # kamailio -v
>>>>>> version: kamailio 4.4.2 (x86_64/linux) 892ad6
>>>>>> flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS,
>>>>>> USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP,
>>>>>> PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX,
>>>>>> FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR,
>>>>>> USE_DST_BLACKLIST, HAVE_RESOLV_RES
>>>>>> ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16,
>>>>>> MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
>>>>>> poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
>>>>>> id: 892ad6
>>>>>> compiled on 12:58:38 Aug 28 2017 with gcc 4.8.5
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>>
>>>>>> BR,
>>>>>> Denys Pozniak
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Kamailio (SER) - Users Mailing List
>>>>>> sr-users at lists.kamailio.org
>>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Kamailio (SER) - Users Mailing List
>>>>> sr-users at lists.kamailio.org
>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>>
>>>> BR,
>>>> Denys Pozniak
>>>>
>>>>
>>>>
>>>
>>>
>>> --
>>>
>>> BR,
>>> Denys Pozniak
>>>
>>>
>>> _______________________________________________
>>> Kamailio (SER) - Users Mailing List
>>> sr-users at lists.kamailio.org
>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>
>>
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>>
>>
>
>
> --
>
> BR,
> Denys Pozniak
>
>
> _______________________________________________
> Kamailio (SER) - Users Mailing List
> sr-users at lists.kamailio.org
> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
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