If we're not in a session we can fall back to sd_uid_get_display() to
find the user's primary session.
This allows launching weston from an ssh session or as a systemd
user service if a viable session is available.
It also more closely follows how libseat finds the session. The libseat
launcher can already do these things, so this change makes these
features common to both launchers.
Based on a patch by Sjoerd Simons <sjoerd.simons@collabora.com>
Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
get_vt is used to check if VTs are enabled, by verifying that a VT greater than
0 is returned.
libseat always implements switching, with switch to an active session
currently being a noop in all backends. libseat does not currently have
a get_vt implementation. Make get_vt errors more explicit, and allow VT
switching anyway if the error is ENOSYS.
Signed-off-by: Kenny Levinsen <kl@kl.wtf>
Add error logging in three different launcher backends:
launcher-logind, launcher-weston-launch, and launcher-direct
to indicate failures for easier debug
Signed-off-by: Anurup M <anurup.m@huawei.com>
When using logind launcher, we receive a PauseDevice "gone" message
from logind session management for each device we close while looking
for KMS devices.
Make logind notify the backend of the device add/remove so that the
backend can decide what to do, instead of assuming that if it is a
DRM_MAJOR device the session should be (de)activated. The backend can
then react to its specific device.
Fixes#251
Signed-off-by: Robert Beckett <bob.beckett@collabora.com>
The printf() format specifier "%m" is a glibc extension to print
the string returned by strerror(errno). While supported by other
libraries (e.g. uClibc and musl), it is not widely portable.
In Weston code the format string is often passed to a logging
function that calls other syscalls before the conversion of "%m"
takes place. If one of such syscall modifies the value in errno,
the conversion of "%m" will incorrectly report the error string
corresponding to the new value of errno.
Remove all the occurrences of the specifier "%m" in Weston code
by using directly the string returned by strerror(errno).
While there, fix some minor indentation issue.
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
The main idea is to make libweston users use the form
#include <libweston/libweston.h>
instead of the plain
#include <compositor.h>
which is prone to name conflicts. This is reflected both in the installed
files, and the internal header search paths so that Weston would use the exact
same form as an external project using libweston would.
The public headers are moved under a new top-level directory include/ to make
them clearly stand out as special (public API).
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
As only seat0 supports TTYs, this changes the logind launcher where
it detects a TTY, only if the seat is seat0. This has only been
tested for logind
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
This was used from the crash handlers, which do not exist anymore.
Nothing calls restore, so delete the dead code.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Daniel Stone <daniels@collabora.com>
We still need to close fds passed to us - or we leak quite a few fds
on VC switch.
Regression, originally fixed in 8f5acc2f3a
and re-broken in commit 72dea06d79
but only for the logind launcher.
Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
glibc 2.25 produces a warning when sysmacros.h is not directly included
but major() is used, as it is intended to be moved to sysmacros.h and
only there. Include it to keep the build happy.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Emilio Pozuelo Monfort <emilio.pozuelo@collabora.co.uk>
Makes the code easier to read and browse through.
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
This clarifies what is supposed to be the libweston code.
v2: screen-share.c is already in compositor/ instead.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Yong Bakos <ybakos@humanoriented.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Tested-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Tested-by: Benoit Gschwind <gschwind@gnu-log.net>
Acked-by: Benoit Gschwind <gschwind@gnu-log.net>
[Pekka: rebased]
In the time since this code was written, logind has gained new APIs to
handle VT switching automatically and activate sessions. Switch to that.
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
We now have a launcher interface and distinct implementations for
logind, weston-launch, and direct DRM, each in their own files.
This helps up clean up the spaghetti code into something that's
hopefully a bit more understood. There should be no functional
changes here.
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
update: Dropped redundant free() in weston_launcher_destroy()
Addresses this warning found by Denis Denisov:
[src/logind-util.c:702]: (warning) %d in format string (no. 1)
requires 'int' but the argument type is 'unsigned int'.
Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>
Reviewed-by: Marek Chalupa <mchqwerty@gmail.com>
Reviewed-By: Derek Foreman <derekf@osg.samsung.com>
Really, there's pretty much no time we'd ever want O_CLOEXEC unset,
as it will likely result in leaking fds to processes that aren't
interested in them or shouldn't have them.
This also removes the (now unused) code from weston_logind_open() that
could drop O_CLOEXEC.
Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
The current parser directly reads a BOOLEAN on the PropertiesChanged
signal for 'Active' properties. However, all property-values are packed in
a VARIANT, otherwise, we wouldn't know the type. Fix the parser to recurse
into the variant before reading the boolean.
To avoid such bugs in the future, we extract the 'Active' parser into a
helper function parse_active(), which is then shared between the
PropertiesChanged and Get handlers.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
Tested-by: nerdopolis <bluescreen_avenger@verizon.net>
Logind sends us a notification whenever the Active attribute of our session
changes. However, due to the way compositor-drm.c relies on the master DRM
device to be synced with the session, we used to delay Active=true
handling until the DRM device was up, too. See:
commit aedc7732eb
Author: David Herrmann <dh.herrmann@gmail.com>
Date: Sat Nov 30 11:25:45 2013 +0100
logind: delay wakeup until DRM-device is resumed
However, the other compositor backends do not use DRM, so logind-util will
never get notified about any DRM device. Therefore, we have to forward the
Active=true change immediately.
This commit fixes logind-util to take sync_drm as argument. If it is true,
we do DRM-device synchronisation, otherwise we don't.
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=86889
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
Tested-by: nerdopolis <bluescreen_avenger@verizon.net>
xwayland uses SIGUSR1 as startup notification. Make sure to use SIGRTMIN
and SIGRTMIN+1 for VT handling.
A bonus is SIGRT* signals can be queued multiple times, so we will be able
to correctly track them and will no longer lose signals (which wouldn't
really matter, but is confusing in logs).
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
Tested-by: nerdopolis <bluescreen_avenger@verizon.net>
The logind API was designed to allow any kind of devices and any number of
devices. It has no idea of "main DRM device" or similar. However, the
weston DRM backend was designed with a single DRM device as master.
Therefore, we wake it up unconditionally on session-wakeup. But this may
fail with logind as a session may be awake, but not all devices have been
resumed, yet.
Therefore, we change the weston-logind backend to deal with this case
correctly. Instead of waking up the compositor on session-wakeup, we wait
for the main DRM device to wake up. Once we get the event, we notify the
compositor.
For sleep, we reverse this logic. On *any* of the following events we
tell the compositor to go to sleep:
- Session gets inactive
- DRM device gets inactive
- DRM device is removed
This guarantees, that weston is only active if *both*, the session and the
main DRM device are awake/active.
Note that we could actually rely solely on the DRM-device Pause/Resume
events from logind and drop all the Active-Prop-Changed handling. logind
guarantees proper ordering of both. However, in case we ever change weston
to support multiple GPUs, we need the per-device notification. Thus, keep
the code. This also makes weston more fail-safe in case logind fails to
send the PauseDevice event (for whatever reason..).
Set errno and return -1 in public API calls like all other weston code
does. Most systemd+dbus calls return negative error-codes instead of -1
and setting errno. Thus, we need to explicitly set errno before returning.
Also note that we must set errno _after_ the cleanup path. Calling
functions like close() in the cleanup path might overwrite errno (which is
not what we want). So protect errno until the final return -1;
The gcc built-in 'bool' type is not the same size as dbus_bool_t, which is
an uint32_t. Passing a pointer to bool where dbus expects a uint32_t *
doesn't work.
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
If the seat or tty doesn't match we return with r == 0, which looks like
success to weston_launcher_connect(), which then fails to fall back
to the legacy path.
https://bugs.freedesktop.org/show_bug.cgi?id=70876
Instead of connecting to weston-launch from launcher-util, we now try to
connect to logind first. If logind provides session-devices, we use them.
If not, we fall back to the old weston-launch facility.
Derek Foreman
Kenny Levinsen
nerdopolis
Anurup M
Pekka Paalanen
Robert Beckett
Antonio Borneo
Pekka Paalanen
Sergei Trofimovich
Derek Foreman
Daniel Stone
Emil Velikov
Giulio Camuffo
Jussi Kukkonen
Jasper St. Pierre
Bryce Harrington
David Herrmann
Kristian Høgsberg