Once in a while, we receive complaints from other fellow KDE developers
about the file organization of kwin. This change addresses some of those
complaints by moving all of source code in a separate directory, src/,
thus making the project structure more traditional. Things such as tests
are kept in their own toplevel directories.
This change may wreak havoc on merge requests that add new files to kwin,
but if a patch modifies an already existing file, git should be smart
enough to figure out that the file has been relocated.
We may potentially split the src/ directory further to make navigating
the source code easier, but hopefully this is good enough already.
Right now when kwin exits, the user is taken directly back to the login
screen. The login session exits, so all processes then are killed by the
session.
This patchset introduces a mechanism to safely restart kwin. The socket
(typically wayland-0) remains alive and persistent across restarts. This
means if any process reconnects through it's own mechanism or a crash
restart handler the socket appears to work, and blocks until the new
kwin restarts.
This makes it secure and race free.
If the screen was locked at the time kwin went down, this is also
secure. Kwin now checks the status from logind at the time of launch, so
will immediately restore a locked state before any other rendering.
