<div dir="ltr">Thanks Daniel for quick response.<div>Could you please be more specific on how to extend "sdpops_api_t" structure?</div><div><br></div><div>I've never done it so little help will be appreciated.</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, May 8, 2015 at 4:42 PM, Daniel-Constantin Mierla <span dir="ltr"><<a href="mailto:miconda@gmail.com" target="_blank">miconda@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
On a quick look, sdpops already exposes a function via api -- see
modules/sdpops/api.h. So most of the needed things are there, you
just need to extend the sdpops_api_t structure and bind_sdpops(...)
function to set the new field to the function pointer.<br>
<br>
Cheers,<br>
Daniel<div><div class="h5"><br>
<br>
<div>On 08/05/15 16:37, Daniel-Constantin
Mierla wrote:<br>
</div>
<blockquote type="cite">
Hello,<br>
<br>
practically you want to call a function from another compiled
object (like from a library). The way to do it is to expose the
function you want via an API structure and then bind to this
module from your module. This is quite common practice in kamailio
-- for example, a lot of modules connect to tm module to use its
functions.<br>
<br>
You can look at sl module how it exports some of its functions
(the structure sl_api_t and the function sl_load_api) and then at
registrar module to see how it bind and uses the api from sl
module.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<div>On 08/05/15 16:07, Cockhootec
Yahrabee wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hi guys,
<div><br>
</div>
<div>I found this very useful function in `sdpops` module
which I want to use within my own module but I cannot find
out how to forward its declaration correctly so I can use it
in my module.</div>
<div><br>
</div>
<div>Since `sdpops` has not defined it's functions within .h
file I am just simply forward declaring function I want to
use in my .h file like this:</div>
<font face="monospace, monospace"><br>
int sdp_remove_codecs_by_name(sip_msg_t* msg, str* codecs);</font><br>
<br>
<div>And then I just calling it within my function. I can
compile it and linker won't give me any errors but when I am
running Kamailio it says that I have error in config file
which is obviously not true because if I comment code which
uses forward declared function kamailio runs without errors.</div>
<div><br>
</div>
<div>Kamailio log (when using forwarded declaration of sdpops
function):</div>
<div>
<div><font face="monospace, monospace"> 0(23096) DEBUG:
<core> [route_struct.c:129]: mk_action():
ACTION_#2 #0/2: 3(3)/ 0x1</font></div>
<div><font face="monospace, monospace"> 0(23096) DEBUG:
<core> [route_struct.c:129]: mk_action():
ACTION_#2 #1/2: 3(3)/ 0x1</font></div>
<div><font face="monospace, monospace"> 0(23096) DEBUG:
<core> [route_struct.c:129]: mk_action():
ACTION_#16 #0/3: 22(16)/ 0x7f115fcfa898</font></div>
<div><font face="monospace, monospace"> 0(23096) DEBUG:
<core> [route_struct.c:129]: mk_action():
ACTION_#16 #1/3: 8(8)/ 0x7f115fcfaf98</font></div>
<div><font face="monospace, monospace"> 0(23096) DEBUG:
<core> [route_struct.c:129]: mk_action():
ACTION_#16 #2/3: 0(0)/ 0x7f1100000000</font></div>
<div><font face="monospace, monospace"> 0(23096) DEBUG:
<core> [route.c:129]: route_add(): mapping routing
block (0xa84a40)[MANAGE_FAILURE] to 1</font></div>
<div><font face="monospace, monospace">ERROR: bad config
file (1 errors)</font></div>
<div><font face="monospace, monospace"> 0(23096) DEBUG:
<core> [ppcfg.c:224]: pp_ifdef_level_check(): same
number of pairing preprocessor directives #!IF[N]DEF -
#!ENDIF</font></div>
<div><font face="monospace, monospace"> 0(23096) DEBUG: tm
[t_funcs.c:85]: tm_shutdown(): DEBUG: tm_shutdown :
start</font></div>
<div><font face="monospace, monospace"> 0(23096) DEBUG: tm
[t_funcs.c:88]: tm_shutdown(): DEBUG: tm_shutdown :
emptying hash table</font></div>
<div><font face="monospace, monospace"> 0(23096) DEBUG: tm
[t_funcs.c:90]: tm_shutdown(): DEBUG: tm_shutdown :
removing semaphores</font></div>
<div><font face="monospace, monospace"> 0(23096) DEBUG: tm
[t_funcs.c:92]: tm_shutdown(): DEBUG: tm_shutdown :
destroying tmcb lists</font></div>
<div><font face="monospace, monospace"> 0(23096) DEBUG: tm
[t_funcs.c:95]: tm_shutdown(): DEBUG: tm_shutdown : done</font></div>
<div><font face="monospace, monospace"> 0(23096) DEBUG:
<core> [mem/shm_mem.c:242]: shm_mem_destroy():
shm_mem_destroy</font></div>
<div><font face="monospace, monospace"> 0(23096) DEBUG:
<core> [mem/shm_mem.c:245]: shm_mem_destroy():
destroying the shared memory lock</font></div>
</div>
<div><br>
</div>
<div>Did anybody resolved this issue? All help is appreciated.</div>
</div>
<br>
<fieldset></fieldset>
<br>
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</blockquote>
<br>
<pre cols="72">--
Daniel-Constantin Mierla
<a href="http://twitter.com/#%21/miconda" target="_blank">http://twitter.com/#!/miconda</a> - <a href="http://www.linkedin.com/in/miconda" target="_blank">http://www.linkedin.com/in/miconda</a>
Kamailio World Conference, May 27-29, 2015
Berlin, Germany - <a href="http://www.kamailioworld.com" target="_blank">http://www.kamailioworld.com</a></pre>
</blockquote>
<br>
<pre cols="72">--
Daniel-Constantin Mierla
<a href="http://twitter.com/#!/miconda" target="_blank">http://twitter.com/#!/miconda</a> - <a href="http://www.linkedin.com/in/miconda" target="_blank">http://www.linkedin.com/in/miconda</a>
Kamailio World Conference, May 27-29, 2015
Berlin, Germany - <a href="http://www.kamailioworld.com" target="_blank">http://www.kamailioworld.com</a></pre>
</div></div></div>
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