Hi all,

i am new here - so please be nice if I am asking a dumb question.

I am trying to wrap the iaxclient library to be useable with java. There is already an implementation - but quit old - and with the iaxclient v1 - not v2.

You can find the iaxclient.h here: <http://iaxclient.sourceforge.net/doc/html/iaxclient_8h.html> http://iaxclient.sourceforge.net/doc/html/iaxclient_8h.html

I have it already working to get loaded - and it does already registers with my server - but I am not able at time to handle all events correctly. I do have already done the function to install a callback for the events - the callback does also gets called - and does already get the event as it should - but the event structure is the following c code

<http://iaxclient.sourceforge.net/doc/html/structiaxc__event.html> 00538 typedef struct iaxc_event_struct {

<http://iaxclient.sourceforge.net/doc/html/structiaxc__event.html#54a75fb153 ef93ce76665db988f80582> 00543 struct iaxc_event_struct *next; 00544

<http://iaxclient.sourceforge.net/doc/html/structiaxc__event.html#4c3030b8ec c6f056b541bcbbfc5d0c9b> 00549 int type; 00550 00554 union {

<http://iaxclient.sourceforge.net/doc/html/structiaxc__event.html#ec445e84a3 03bcc8e984930888e24233> 00556 struct <http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__levels.html> iaxc_ev_levels levels;

<http://iaxclient.sourceforge.net/doc/html/structiaxc__event.html#ce59f28817 bb808d9b962b8fd99c12c1> 00558 struct <http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__text.html> iaxc_ev_text text;

<http://iaxclient.sourceforge.net/doc/html/structiaxc__event.html#05c2b5a052 dac915184b9830ea54e6b3> 00560 struct <http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__call__state.html> iaxc_ev_call_state call;

<http://iaxclient.sourceforge.net/doc/html/structiaxc__event.html#68a6aa497a 583a7e57fd11b2641cf1f9> 00562 struct <http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__netstats.html> iaxc_ev_netstats netstats;

<http://iaxclient.sourceforge.net/doc/html/structiaxc__event.html#f330175448 1ff9d8008cc83ef39e3d25> 00564 struct <http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__video__stats.html

<http://iaxclient.sourceforge.net/doc/html/structiaxc__event.html#81635df20f 08035a344a4ec7f2a8f6e9> 00566 struct <http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__url.html> iaxc_ev_url <http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__url.html#329ea845 d3504bd8c7daafc724f8d980> url;

<http://iaxclient.sourceforge.net/doc/html/structiaxc__event.html#f436003528 4c6b34633c04c7a0fc0616> 00568 struct <http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__video.html> iaxc_ev_video video;

<http://iaxclient.sourceforge.net/doc/html/structiaxc__event.html#f98a67cc72 848193002a8f6fe15a4f09> 00570 struct <http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__audio.html> iaxc_ev_audio audio;

<http://iaxclient.sourceforge.net/doc/html/structiaxc__event.html#db909b87e8 5776e97e339280ef2e986f> 00572 struct <http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__registration.html

00573 } ev; 00574 } iaxc_event <http://iaxclient.sourceforge.net/doc/html/structiaxc__event.html> ;

With iaxc_ev_registriation

<http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__registration.html

<http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__registration.html #cb9d89fc8e8574ac5e4f2383ec18aa61> 00519 int <http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__registration.html #cb9d89fc8e8574ac5e4f2383ec18aa61> id; 00520

<http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__registration.html #c80181b9281394344f215db8318740b5> 00527 int <http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__registration.html #c80181b9281394344f215db8318740b5> reply; 00528

<http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__registration.html #ccfd5115e74e18036835cdf55adb903b> 00532 int <http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__registration.html #ccfd5115e74e18036835cdf55adb903b> msgcount; 00533 };

And iaxc_ev_levels

<http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__levels.html> 00183 struct <http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__levels.html> iaxc_ev_levels {

<http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__levels.html#a02aa 4fc1dd80f5b285dad0bc8833773> 00187 float <http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__levels.html#a02aa 4fc1dd80f5b285dad0bc8833773> input; 00188

<http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__levels.html#7573f 04f3b2b5737259e92c799803bae> 00192 float <http://iaxclient.sourceforge.net/doc/html/structiaxc__ev__levels.html#7573f 04f3b2b5737259e92c799803bae> output; 00193 };

I have mapped it to

public static class iaxc_ev_registration extends Structure {

public int id;

public int reply;

public int msgcount;

}

public static class iaxc_ev_levels extends Structure {

public float input;

public float output;

}

public static class iaxc_event_struct extends Structure {

public static class ByValue extends iaxc_event_struct implements

Structure.ByValue {

}

public Pointer next;

public int type;

public static class iaxc_event_union extends Union {

public iaxc_ev_registration registration;

public iaxc_ev_levels levels;

}

public iaxc_event_union ev;

}

In the callback i will get the iaxc_event_struct passed correctly - I can distinguish between the event types - but then when I try to access a specific event type structure - the structure is not initialized (nulled). When i for example directly add iaxc_ev_registration instead of the union - then I will have an initialized structure in the event handler for the registration event - but can't analyze all other events. I have read about using setType and read function to initialize the union - but it does not work.

Here is the callback function

IAXClient.INSTANCE.iaxc_set_event_callback(new IAXClient.FUNCTION() {

@Override

public int invoke(iaxc_event_struct.ByValue event) {

if (event==null) {

return 0;

}

switch(event.type) {

case IAXClient.IAXC_EVENT_REGISTRATION:

System.out.println("Event Raw: " + event.ev.toString());

event.ev.setType(IAXClient.iaxc_ev_registration.class);

event.ev.read();

IAXClient.iaxc_ev_registration reg = (iaxc_ev_registration) event.ev.getTypedValue(IAXClient.iaxc_ev_registration.class);

System.out.println("Event Reg: " + reg.reply);

break;

case IAXClient.IAXC_EVENT_LEVELS:

IAXClient.iaxc_ev_levels levels = (iaxc_ev_levels) event.ev.getTypedValue(IAXClient.iaxc_ev_levels.class);

System.out.println("Event LEvel: " + levels.input);

break;

default:

break;

}

return 0;

}

});

I think it will be something trivial - but I don't get it working by myself.

Can someone here enlighten me ?

Best regards,

Wolfgang