Currently, when encountering a non-desktop display, sway offers the
output for leasing and returns without storing it in a sway specific
output type like `struct sway_output`. Additionally, running
`swaymsg -t get_outputs` doesn't show non-desktop outputs.
This commit stores the non-desktop outputs into a struct called
`sway_output_non_desktop`, and adds them to a list on `sway_root`
Without this, the `IPC_GET_TREE` ipc call would return false information
about the container's `deco_rect` and `rect` properties if
`hide_edge_borders --i3` was in effect.
This semi-colon looks like a typo. Luckily, it has no effect on the code as it's treated as an empty statement leading the switch case.
Really straightforward nitpick change, was just something I was confused by when reading over the code.
Use pango to parse font configuration early, and reject the command as
invalid if the value is invalid for pango. Since we're already parsing
the font into a `PangoFontDescription`, keep that instance around and
avoid re-parsing the font each time we render text.
Fixes: https://github.com/swaywm/sway/issues/6805
If the input device is quoted, which is common when using variables in the
config file, those quotes must be ignored here, or the input device will be
ignored.
Fixes#7029.
The "dpms" command refers to VESA Display Power Management
Signaling, a deprecated standard. It's superseded by VESA DPM.
Instead of tying out command name to a particular standard, use the
neutral term "power".
This ensures that those surprised by the deprecation of SUID operation
receive an error rather than accidentally having sway run as root.
This detection will be removed in a future release.
Try to gain SCHED_RR (round-robin) realtime scheduling privileges before
starting the server. This requires CAP_SYS_NICE on Linux systems.
We additionally register a pthread_atfork callback which resets the
scheduling class back to SCHED_OTHER (the Linux system default).
Due to CAP_SYS_NICE, setting RLIMIT_RTPRIO has no effect on the process
as documented within man 7 sched (from Linux):
Privileged (CAP_SYS_NICE) threads ignore the RLIMIT_RTPRIO limit;
as with older kernels, they can make arbitrary changes to
scheduling policy and priority. See getrlimit(2) for further
information on RLIMIT_RTPRIO
Note that this requires the sway distribution packagers to set the
CAP_SYS_NICE capability on the sway binary.
Supersedes #6992
Wlroots does not yet support the newer xdg-shell versions and now
requires the compositor to set the supported xdg-shell version during
creation. Set this to v2 for sway as well.
Fixes https://github.com/swaywm/sway/issues/7001
strncpy is useless here, is dangerous because it doesn't guarantee
that the string is NUL-terminated and causes the following warning:
../sway/criteria.c: In function ‘criteria_parse’:
../sway/criteria.c:712:25: error: ‘strncpy’ destination unchanged after copying no bytes [-Werror=stringop-truncation]
712 | strncpy(value, valuestart, head - valuestart);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Our layer shell implementation assigns every layer surface to an output
on creation. It tracks this output using the output field on the
underlying wlr_layer_surface_v1 structure. As such, much of the existing
code assumes that output is always non-NULL and omits NULL checks
accordingly.
However, there are currently two cases where we destroy a
sway_layer_surface and output is NULL. The first is when we can't find
an output to assign the surface to and destroy it immediately after
creation. The second is when we destroy a surface in response to its
output getting destroyed, as we set output to NULL in
handle_output_destroy() before we call wlr_layer_surface_v1_destroy(),
which is what calls the appropriate unmap and destroy callbacks.
The former case doesn't cause any problems, since we haven't even
allocated a sway_layer_surface at that point or registered any
callbacks. The latter case, however, currently triggers a crash (#6120)
if a popup is visible, since our popup_handle_unmap() implementation
can't handle a NULL output.
To fix this issue, keep output set until right before we free the
sway_layer_surface. All we need to do is remove some of the cleanup
logic from handle_output_destroy(), since as of commit c9060bcc12
("layer-shell: replace close() with destroy()") that same logic is
guaranteed to be happen later when wlroots calls handle_destroy() as
part of wlr_layer_surface_v1_destroy().
This lets us remove some NULL checks from other unmap/destroy callbacks,
which is nice. We also don't need to check that the wlr_output points to
a valid sway_output anymore, since we unset that pointer after disabling
the output as of commit a0bbe67076 ("Address emersions comments on
output re-enabling") Just to be safe, I've added assertions that the
wlr_output is non-NULL wherever we use it.
Fixes#6120.
The existing code gives this error when compiled with GCC 12:
../sway/server.c: In function ‘server_init’:
../sway/server.c:217:75: error: ‘%d’ directive output may be truncated writing between 1 and 11 bytes into a region of size 8 [-Werror=format-truncation=]
217 | snprintf(name_candidate, sizeof(name_candidate), "wayland-%d", i);
| ^~
../sway/server.c:217:66: note: directive argument in the range [-2147483647, 32]
217 | snprintf(name_candidate, sizeof(name_candidate), "wayland-%d", i);
| ^~~~~~~~~~~~
../sway/server.c:217:17: note: ‘snprintf’ output between 10 and 20 bytes into a destination of size 16
217 | snprintf(name_candidate, sizeof(name_candidate), "wayland-%d", i);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Because i is never negative, this is a false positive, but it is easy to
change i to unsigned to silence the error.
