--- Log opened Fri Apr 29 00:00:45 2016
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13:30 #navit: < robertp> hi
13:31 #navit: < jandegr> hi robertp
13:32 #navit: < robertp> :)
13:33 #navit: < robertp> jandegr do you know about attrs?
13:35 #navit: < jandegr> heard about it
13:37 #navit: < robertp> ok
13:38 #navit: < jandegr> what is the problem ?
13:39 #navit: < robertp> i do not know when an attr is set during startup when its not defined in navit.xml
13:39 #navit: < robertp> like osd_configuration or vehicle.pisition_speed.
13:40 #navit: < robertp> those attrs can be asked for its value to decide things on them
13:41 #navit: < robertp> i tied to use my audio attr the same way
13:41 #navit: < robertp> but i failed
13:42 #navit: < jandegr> so this is specific for your audio thing, np with the samples you gave ?
13:44 #navit: < robertp> thats not really specific...
13:48 #navit: < jandegr> you inserted shuffle, repeat and playing ?
13:48 #navit: < robertp> If i set my attr through the cmd_interface:
13:49 #navit: < robertp> <osd enabled="yes" name="ifplaying" update_period="1000" type="cmd_interface" h="1" w="1" x="-1" y="-1" command='audio.playing=audio.playing ? 0 : 1' />
13:49 #navit: < robertp> navit starts and the functions set_attr and get_attr are called
13:49 #navit: < robertp> if not, navit hangs on startup
13:50 #navit: < robertp> yes, i inserted playing, shuffle and repeat
13:52 #navit: < robertp> and i get this error message:
13:52 #navit: < robertp> error:navit:command_register_callbacks:could not resolve object in cs=0x8fcaf38: 	osd_configuration==2 && audio.playing==0
13:53 #navit: < robertp> where audio.playing is underlined
13:54 #navit: < jandegr> probably the following is no problem, but I am comparing the way you implemented get_attr in audio.c with route.c
13:56 #navit: < jandegr> why did you do it that way ?
13:56 #navit: < jandegr> normally it would be smth like attr->u.num=0;
13:56 #navit: < jandegr> remark : is probably not the cause, but just looking ...
13:58 #navit: < robertp> I took the code from vehicle_get_attr
13:59 #navit: < jandegr> https://github.com/navit-gps/navit/blob/trunk/navit/route.c#L4116
14:02 #navit: < jandegr> hmm, vehicle uses both ways, but the first one is similar to route.c
14:02 #navit: < jandegr> https://github.com/navit-gps/navit/blob/trunk/navit/vehicle.c#L211
14:02 #navit: < robertp> well vehicle.c is a wrapper for the possible vehicles
14:02 #navit: < robertp> as audio.c is
14:03 #navit: < jandegr> oh ok
14:03 #navit: < robertp> this leads to the special audio_plugin ?or vehicle_gpsd
14:05 #navit: < jandegr> and did you test if 'leads to' works ok ?
14:06 #navit: < jandegr> or do some test to see if you can get it once, and then later work on the callback
14:07 #navit: < robertp> oh... do the attrs always need a callback?
14:07 #navit: < robertp> I can set the attr
14:08 #navit: < robertp> and i get the right value, if i set it first
14:08 #navit: < robertp> so i think i missed something during init...
14:09 #navit: < robertp> no.. just tested. i do not get the right value
14:11 #navit: < jandegr> can you point me to the plugin where the real attr is ?
14:13 #navit: < robertp> https://github.com/pohlinkzei/navit/blob/audio_test_attr/navit/audio/player-stub/stub.c#L147
14:14 #navit: < jandegr> https://github.com/pohlinkzei/navit/blob/audio_test_attr/navit/audio/player-stub/stub.c#L125
14:14 #navit: < jandegr> make it return just some fixed value 214 or so and try to get it once
14:17 #navit: < robertp> that worked... short time afk
14:26 #navit: < jandegr> https://github.com/navit-gps/navit/blob/trunk/navit/command.c#L1803
14:27 #navit: < jandegr> hmm , leading to it is  if (cs->res.attr.type == attr_none)
14:46 #navit: < robertp> it seems the attr i get and the attr i set are different
14:47 #navit: < robertp> this: https://github.com/pohlinkzei/navit/blob/audio_test_attr/navit/audio/player-stub/stub.c#L148
14:47 #navit: < robertp> gives: error:audio_player-stub:stub_playing_attr_set:0x8e08848, 0xbfd07d68
14:47 #navit: < robertp> and
14:48 #navit: < robertp> https://github.com/pohlinkzei/navit/blob/audio_test_attr/navit/audio/player-stub/stub.c#L118
14:48 #navit: < robertp> gives
14:49 #navit: < robertp> error:audio_player-stub:stub_playing_attr_get:0x8e08848, 0x20099, 0xbfd07c34
14:49 #navit: < robertp> 0xbfd07c34 != 0xbfd07d68
14:56 #navit: < jandegr> that is normal
15:03 #navit: < robertp> ok
15:20 #navit: < jandegr> btw what is the purpose of a 1000 second update period ?
15:24 #navit: < robertp> that it is done only once
15:27 #navit: < robertp> I get what i set now. but its not evaluated with ' enable_expression="osd_configuration==2 &amp;&amp; audio.playing==1" '
15:43 #navit: < robertp> thanks for your help. bye
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15:58 #navit: < zoff99> hi
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--- Log closed Sat Apr 30 00:00:47 2016