D-Bus is an inter-process communication (IPC) system for software applications to communicate with one another.
The USE flags of dbus are:
|X||Yes||Adds support for X11|
|debug||No||Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see http://www.gentoo.org/proj/en/qa/backtraces.xml|
|doc||No||Adds extra documentation (API, Javadoc, etc). It is recommended to enable per package instead of globally|
|selinux||No||!!internal use only!! Security Enhanced Linux support, this must be set by the selinux profile or breakage will occur|
|static-libs||No||Build static libraries|
|systemd||No||Build with sys-apps/systemd at_console support|
|test||No||Workaround to pull in packages needed to run with FEATURES=test. Portage-2.1.2 handles this internally, so don't set it in make.conf/package.use anymore|
After setting this you want to update your system so the changes take effect:
The main config files are the /etc/dbus-1/system.conf for the system bus and session.conf for the session bus.
You can now start D-Bus:
To start D-Bus at boot time, add it your default runlevel (although it often also get started by D-Bus depending services):
Some useful commands are:
- dbus-monitor --system - To monitor the activities in the system bus.
- dbus-monitor --session - To monitor the activities in the session bus.
- dbus-send PARAMETER - To send a message. See the dbus-send man page for more information.
With dbus-monitor you can monitor the buses. Error are also redirected to Syslog (/var/log/messages).