How does D-Bus differ from other interprocess communication or networking protocols?
Keep in mind, it is not only an IPC system; it also includes lifecycle tracking, service activation, security policy, and other higher-level structure and assumptions. The best place to start is to read the D-Bus tutorial, so you have a concrete idea what D-Bus actually is. If you understand other protocols on a wire format level, you may also want to read the D-Bus specification to see what D-Bus looks like on a low level. As the tutorial and specification both explain, D-Bus is tuned for some specific use cases. Thus, it probably isn’t tuned for what you want to do, unless you are doing the things D-Bus was designed for. Don’t make the mistake of thinking that any system involving “IPC” is the same thing. The D-Bus authors would not recommend using D-Bus for applications where it doesn’t make sense. The following questions compare D-Bus to some other protocols primarily to help you understand D-Bus and decide whether it’s appropriate; D-Bus is neither intended nor claimed to be the r