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This drops the libsystemd-terminal and systemd-consoled code for various
reasons:
* It's been sitting there unfinished for over a year now and won't get
finished any time soon.
* Since its initial creation, several parts need significant rework: The
input handling should be replaced with the now commonly used libinput,
the drm accessors should coordinate the handling of mode-object
hotplugging (including split connectors) with other DRM users, and the
internal library users should be converted to sd-device and friends.
* There is still significant kernel work required before sd-console is
really useful. This includes, but is not limited to, simpledrm and
drmlog.
* The authority daemon is needed before all this code can be used for
real. And this will definitely take a lot more time to get done as
no-one else is currently working on this, but me.
* kdbus maintenance has taken up way more time than I thought and it has
much higher priority. I don't see me spending much time on the
terminal code in the near future.
If anyone intends to hack on this, please feel free to contact me. I'll
gladly help you out with any issues. Once kdbus and authorityd are
finished (whenever that will be..) I'll definitely pick this up again. But
until then, lets reduce compile times and maintenance efforts on this code
and drop it for now.
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This patch removes includes that are not used. The removals were found with
include-what-you-use which checks if any of the symbols from a header is
in use.
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If the format string contains %m, clearly errno must have a meaningful
value, so we might as well use log_*_errno to have ERRNO= logged.
Using:
find . -name '*.[ch]' | xargs sed -r -i -e \
's/log_(debug|info|notice|warning|error|emergency)\((".*%m.*")/log_\1_errno(errno, \2/'
Plus some whitespace, linewrap, and indent adjustments.
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Basically:
find . -name '*.[ch]' | while read f; do perl -i.mmm -e \
'local $/;
local $_=<>;
s/log_(debug|info|notice|warning|error|emergency)\("([^"]*)%s"([^;]*),\s*strerror\(-?([->a-zA-Z_]+)\)\);/log_\1_errno(\4, "\2%m"\3);/gms;print;' \
$f; done
Plus manual indentation fixups.
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Instead of adding matches per device, we now add logind matches per
session. This reduces the number of matches considerably and saves
resources.
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Whenever we resync an evdev device (or disable it), we should send RESYNC
events to the linked upper layers. This allows to disable key-repeat and
assume some events got dropped.
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The current pause/resume logic kinda intertwines the resume/pause and
enable/disable functions. Lets avoid that non-obvious behavior and always
make resume call into enable, and pause call into disable, if appropriate.
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We only reject evdev FDs that are O_WRONLY as they're currently pretty
useless. The following check for O_WRONLY is thus never excercised so drop
it.
Thanks to Thomas Andersen (via coverity)!
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This assertion is already there two lines down. Drop the redundant
assertion.
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This might cause >=0 to be returned, even though the method failed. Fix
this and return -errno.
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We define typedefs for all internal types so drop the redundant "struct"
prefix.
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If read() fails on evdev devices, we deal with this in idev_evdev_hup().
It is very likely this is an async revoke, therefore, we must not abort.
Fix our io helper to discard such errors after passing them to
idev_evdev_hup(), so we don't bail out of the event loop.
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The evdev-element provides linux evdev interfaces as idev-elements. This
way, all real input hardware devices on linux can be used with the idev
interface.
We use libevdev to interface with the kernel. It's a simple wrapper
library around the kernel evdev API that takes care to resync devices
after kernel-queue overflows, which is a rather non-trivial task.
Furthermore, it's a well tested interface used by all other major input
users (Xorg, weston, libinput, ...).
Last but not least, it provides nice keycode to keyname lookup tables (and
vice versa), which is really nice for debugging input problems.
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