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This is useful for headless testing, for instance with VKMS:
modprobe vkms
export WLR_DRM_DEVICES=/dev/dri/card1
export WLR_BACKENDS=drm
export LIBSEAT_BACKEND=noop
sway
We don't need any of the VT handling in this case.
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If a client closed while it was disabled, the VT would not be torn down.
If the user navigated back to the VT it belonged to, they would be
stuck.
When a client is disabled, open the fd for the VT it belonged to and
perform regular teardown on it.
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This simplifies logic in seat handling.
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Linux only requires acking release and ignores ack of acquire, but
FreeBSD is more stringent and will patiently wait for both to be acked.
Implement proper acking for both events.
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The seat activation logic did not correctly handle VT switching and
switching between multiple sessions.
Session switching on VT-bound seats is now performed using a VT switch,
taking advantage of VT signals to perform the actual switch. This
simplifies switching logic and makes it more robust.
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Signal handling relied on poll(2) being interrupted by signals, followed
by a check for signal handlers flagging a signal as received. This only
allowed signals that were received during poll(2) to be handled
correctly.
Implement the usual self-pipe implementation, where signal handlers
write an arbitrary byte to a polled file descriptor to ensure proper
level-triggered signal handling.
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test_run and test_assert replaces regular assert with better logging
which include the currently running test name. The tests can now also be
built without DEBUG.
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The content of this message is unused, so it should be converted to a
content-less message.
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Add helpers around connection access to have all logging centralized and
reduce code duplication. Improve existing helpers to further reduce code
duplication.
The seatd backend should have much better logging after this.
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The default level is SILENT. log_init no longer takes an initial log
level (so that calls to libseat_set_log_level prior to log_init work
correctly).
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This allows libseat users to register a custom logging function.
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This is preparatory work for exposing a public function to set libseat's
log handler.
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Previously, seatd would not deactivate devices until the client had
acked the disable. In once instance, this lead to libinput spending
significant time checking and closing each input device.
As a workaround, mimick logind's behavior of deactivating devices first.
The original behavior can be reintroduced if the client-side problem is
fixed.
Closes: https://todo.sr.ht/~kennylevinsen/seatd/5
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The VT and KD ioctl's are picky about the tty fd used. In order to
satisfy these, and to improve state cleanup, we now only and store the
current tty when opening a client, and use this fd to perform teardown
later. The presence of the fd is also used to signal that teardown is
needed.
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Didn't do what I wanted it to anyway.
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FreeBSD device numbers cannot be used to check the type of a device, as
they are merely unique filesystem IDs.
As the paths we use have been sanitized with realpath, we can simply use
the path to check if a requested file is an evdev or drm device. This
also allows us to make the check before the file is opened.
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