When deleting a hook we should not search for the callback only. Otherwise
we might remove the wrong callback. Therefore, we now search for callback
and data argument. If multiple callbacks are registered with the same data
and cb, then we don't care which one is removed as this wouldn't make any
difference. They behave the same way, anyway.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Our old backend was hacked together and hadn't have any structure. This is
a new approach to create the uterm-library inside kmscon. The
uterm-library will contain everything that is needed to run an application
on Linux DRM devices without X11 or Wayland support.
The idea is to move the input subsystem to uterm, too. No other stuff is
currently planned to be included in uterm.
Although uterm is supposed to be a separate library, we do not build it as
such library. We currently include the log-subsystem and the
eloop-handlers in the library so we cannot build it as stand-alone
library. However, we try to keep it separate so if we ever need to export
it, then it should be a one-hour job to do it so.
Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
