Dear PulseAudio users,
I know that setting `log-level = debug` should increase the messages
written out to `log-target`. I noticed that the following messages are
printed every five seconds to `log-target`.
[…]
Jan 31 11:47:21 x pulseaudio[3489]: module-console-kit.c: dbus:
interface=org.freedesktop.ConsoleKit.Seat,
path=/org/freedesktop/ConsoleKit/Seat1, member=SessionAdded
Jan 31 11:47:21 x pulseaudio[3489]: module-console-kit.c: dbus:
interface=org.freedesktop.ConsoleKit.Seat,
path=/org/freedesktop/ConsoleKit/Seat1, member=SessionRemoved
Jan 31 11:47:26 x pulseaudio[3489]: module-console-kit.c: dbus:
interface=org.freedesktop.ConsoleKit.Seat,
path=/org/freedesktop/ConsoleKit/Seat1, member=SessionAdded
Jan 31 11:47:26 x pulseaudio[3489]: module-console-kit.c: dbus:
interface=org.freedesktop.ConsoleKit.Seat,
path=/org/freedesktop/ConsoleKit/Seat1, member=SessionRemoved
[…]
In `module-console-kit.c` [1] the module gets initialized, and the D-Bus
connection gets a `filter_cb` added to it.
int pa__init(pa_module*m) {
[…]
if (!dbus_connection_add_filter(pa_dbus_connection_get(connection),
filter_cb, u, NULL)) {
pa_log_error("Failed to add filter function");
goto fail;
}
if (pa_dbus_add_matches(
pa_dbus_connection_get(connection), &error,
"type='signal',sender='org.freedesktop.ConsoleKit',interface='org.freedesktop.ConsoleKit.Seat',member='SessionAdded'",
"type='signal',sender='org.freedesktop.ConsoleKit',interface='org.freedesktop.ConsoleKit.Seat',member='SessionRemoved'",
NULL) < 0) {
pa_log_error("Unable to subscribe to ConsoleKit signals: %s:
%s", error.name, error.message);
goto fail;
}
[…]
Looking at `filter_cb` there the message seems to be printed by
`pa_log_debug(…)`.
static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage
*message, void *userdata) {
[…]
pa_log_debug("dbus: interface=%s, path=%s, member=%s\n",
dbus_message_get_interface(message),
dbus_message_get_path(message),
dbus_message_get_member(message));
if (dbus_message_is_signal(message,
"org.freedesktop.ConsoleKit.Seat", "SessionAdded")) {
[…]
}
add_session(u, path);
} else if (dbus_message_is_signal(message,
"org.freedesktop.ConsoleKit.Seat", "SessionRemoved")) {
[…]
remove_session(u, path);
}
[…]
}
If I understood the code correctly, it looks like the CK-module is
initialized every five seconds on my system. Is that expected/normal?
Thanks,
Paul
[1]
http://git.0pointer.de/?p=pulseaudio.git;a=blob;f=src/modules/module-console-kit.c
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