Re: [PATCH] gnu: Add ola.

[John J Foerch <jjfoerch@earthlink.net>]

rennes@openmailbox.org writes:

> John,
>
>> Thank you so much for doing this.  If 'make check' succeeds, those are
>> the main tests, but to check installation, I would look for the
>> following programs being installed:
>>
>>     ola                   ola_e131        ola_plugin_state   ola_rdm_set
>>     ola_set_priority      ola_trigger     ola_uni_name       ola_artnet
>>     ola_dmxconsole        ola_patch       ola_rdm_discover
>> ola_recorder
>>     ola_streaming_client  ola_uni_info    ola_uni_stats      olad
>>     ola_dmxmonitor        ola_plugin_info ola_rdm_get        ola_set_dmx
>>     ola_timecode          ola_uni_merge   ola_usbpro
>> ola_dev_info
>>
>
> I see only the following programs:
>
> ola_artnet            ola_plugin_state      ola_set_priority
> ola_uni_name
> olad                  ola_rdm_discover      ola_streaming_client
> ola_uni_stats
> ola_dev_info          ola_rdm_get           ola_timecode
> ola_usbpro
> ola_e131              ola_rdm_set           ola_trigger
> ola_patch             ola_recorder          ola_uni_info
> ola_plugin_info       ola_set_dmx           ola_uni_merge
>

That seems fine.  I don't know what every single one of them does, but
all of the main ones are present.

>
>> These are the programs installed by the Debian ola package, and I don't
>> know what packaging options might have affected which were installed,
>> but the list should be more or less the same.
>>
>> To start the ola daemon and generate a config:
>>
>>     olad -c ~/my-ola
>
> when the command is run, it displays message:
>
> $ olad -c ~/my-ola
>
> common/io/IOUtils.cpp:39: open(/dev/dmx0): No such file or directory
> plugins/opendmx/OpenDmxPlugin.cpp:80: Could not open /dev/dmx0 No such
> file or directory
> common/network/IPV4Address.cpp:89: Could not convert address 677966233
> common/io/IOUtils.cpp:39: open(/dev/kldmx0): No such file or directory
> plugins/karate/KaratePlugin.cpp:79: Could not open /dev/kldmx0 No such
> file or directory
>

The ones complaining about missing /dev entries are nothing to worry
about - those are plugins just looking for hardware that isn't there.
They can be disabled in files in ~/my-ola, but by default, it will
search for every kind of device.

The one that I don't know the meaning of is the IPV4Address.cpp:89
error.  I will ask about that.

>
>
>> This should start a web service on port 9090, so you can point a web
>> browser to localhost:9090 and see if anything comes up.
>
> the service is not responding. Any ideas?
>
> Thanks.

According to this page, http support is an optional build option.  I
wasn't aware of that, but it would be convenient to enable.

  https://www.openlighting.org/ola/getting-started/using-ola/#How_to_setup_an_interface

To enable it, it needs libmicrohttpd.  It looks like guix has a package
for that - nice!

Thank you,

--
John Foerch