[LAD] [Jack-Devel] more jack/qjackctl madness : some comments

Nedko Arnaudov nedko at arnaudov.name
Mon May 18 14:13:19 UTC 2009

Fons Adriaensen <fons at kokkinizita.net> writes:

> On Mon, May 18, 2009 at 12:15:10PM +0300, Nedko Arnaudov wrote:
>> libjack does not start jack server if JackNoStartServer is
>> specified. This behaviour is same for both jackd autolaunching and dbus
>> jack server starting through activation. Presense of the jackdbus
>> process *DOES NOT MEAN* that jack server is started. It looks like fair
>> game to me.
> This is definitely *not* true. Presence of the 'jackdbus auto'
> daemon results in a jackd starting whenever qjackctl is
> started, and the author of that app has already reported
> that qjackctl explicitly requests no autostart when trying
> to become a jack client.

Fons I think we can both read C code, right?

From posix/JackPosixServerLaunch.cpp, line 166:

static int start_server(const char* server_name, jack_options_t options)
    if ((options & JackNoStartServer) || getenv("JACK_NO_START_SERVER")) {
        return 1;

#if defined(JACK_DBUS)
    return start_server_dbus(server_name);
    jackd fork/exec stuff

presence of process with "jackdbus auto' commandline those not mean that
*server* is started. This is the dbus service, not the jack server

Nedko Arnaudov <GnuPG KeyID: DE1716B0>
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