title: Detailed documentation for systemd's sd-bus
body: <p>I have some project which uses libdbus for IPC.<br>
  The goal is to use systemd's sd-bus instead of libdbus.</p>
  
  <p>There is documentation for sd-bus (<a href="http://0pointer.net/blog/the-new-sd-bus-api-of-systemd.html" rel="noreferrer">here</a>, <a href="https://www.freedesktop.org/software/systemd/man/sd-bus.html" rel="noreferrer">here</a> and etc), but that documentation doesn't cover all aspects of D-Bus specification implementation.</p>
  
  <p>I spent a lot looking for at least any detailed explanation of sd-bus' implementation, but didn't find anything that could help me map libdbus' process workflow onto sd-bus.</p>
  
  <p>Anybody can help me? Some unofficial docs, sequences, anything...</p>