cmake sets HAVE_DPMS_PROTOTYPES unconditionally to 1 if we have the dpms
headers. So code inside HAVE_X11_EXTENSIONS_DPMS_H never needs to check for
it.
And since there's only one place that cared for this, we can remove the define
in cmake as well.
Many tools strip trailing whitespaces by default, so after editing a file with
whitespace errors we end up with a bunch of unrelated hunks that need to be
reverted locally.
This could be fixed by configuring each tool to not do this (at least for the
barrier repo), or, simpler, we just sed the problem away and make barrier
whitespace-compliant.
sed commands run:
sed -i 's/[ \t]\+$//' **/*.(cpp|h) **/*CMakeLists.txt
Verified with git diff --ignore-space-change, this shows the empty diff.
I've tested this with a german Apple Magic Keyboard with Numeric Keypad (Space Gray)
connected to a non-Apple Linux Laptop running Arch Linux.
keycode 237 (keysym 0x1008ff06, XF86KbdBrightnessDown)
keycode 238 (keysym 0x1008ff05, XF86KbdBrightnessUp)
When disconnected a NOTE log entry is made in the log, when connected it just prints which seems inconsistent to me:
```
[2020-06-01T11:50:55] INFO: AES256-GCM-SHA384 TLSv1.2 Kx=RSA Au=RSA Enc=AESGCM(256) Mac=AEAD
/home/jonathan/barrier/src/lib/net/SecureSocket.cpp,872
connected to server
[2020-06-01T11:52:43] INFO: entering screen
```
vs.
```
[2020-06-01T11:59:01] NOTE: disconnected from server
/home/jonathan/barrier/src/lib/barrier/ClientApp.cpp,315
```
Since everything else logs with a timestamp I suggest changing this to NOTE as well for connection events being logged.
Fixes high cpu usage spikes on win10.
When queue was containing messages of only non-QS_POSTMESSAGE type the
"while (m_buffer->isEmpty())" busy-looped in EventQueue::getEvent
since isEmpty was true (checked only QS_POSTMESSAGE message type),
but waitForEvent returned immediately (checked more message types).
Investigation shows that the difference was introduced in
https://github.com/debauchee/barrier/commit/dbfb04a6e
to fix a problem with bad behaviour of GetQueueStatus
Researching showed that a similar problem was fixed in Qt,
and the solution was
"pass different flags to GetQueueStatus depending on version of windows"
https://bugreports.qt.io/browse/QTBUG-29097
So this patch makes changes to a barrier non-GUI core similar to Qt fix.
QLength() may return 0 even if there are events pending because they
need to be read from the display socket in order to become visible. We
must use XPending() which will poll the socket if QLength() == 0.
