There's no need to declare it as extern in the header as it is already
declared in the source files where it's used.
Fixes:
../src/device.c:51:25: error: redundant redeclaration of ‘fprintd_dbus_conn’ [-Werror=redundant-decls]
51 | extern DBusGConnection *fprintd_dbus_conn;
| ^~~~~~~~~~~~~~~~~
In file included from ../src/device.c:34:
../src/fprintd.h:29:25: note: previous declaration of ‘fprintd_dbus_conn’ was here
29 | extern DBusGConnection *fprintd_dbus_conn;
| ^~~~~~~~~~~~~~~~~
This happens on hardware without fingerprint readers on every boot; we
don't need to log anything about it, it's totally normal.
This patch is part of an initiative to reduce logging spew in GNOME
so that actual errors and important messages are more visible.
https://bugs.freedesktop.org/show_bug.cgi?id=71889
Track clients connected to each device using EggDbusMonitor.
When there are no more clients connected to the device, release it.
When no devices are used anymore, set up a timeout to exit within
30 seconds.
Make all of FPrintManager's struct members private,
warn of errors using a _get_error() function, as object
creation can never fail.
The only error possible shouldn't really be an error though,
as it only means that no devices will be enumerated, but it
could tell us about newly plugged devices instead.
