Prior to this change, the x52d virtual mouse logic was assuming that the
joystick would only send one report with the wheel button state as "on",
and subsequent reports would be "off". However, with some joysticks, the
other axis sensors could be faulty or noisy, and the joystick could send
multiple reports with the mouse button "on", without an "off" state in
between. This was causing scroll events to be much faster than would be
expected (1 mouse scroll to 1 screen scroll event)
This change should fix the problem, by comparing the value of the
previous button state. This should now trigger a wheel event only on a
rising edge (from "off" to "on").
See #46
The notify module controls the logging settings for the notify socket
code. While missing this doesn't cause any impact to the notify code, an
invalid module name sent on the command socket could cause the daemon to
crash with a NULL pointer access.
This change adds logic to block signals on child threads. This is done
so that we can migrate signal handling to the main thread, even if we
add additional threads in the future.
This change adds a ReverseScroll parameter to the configuration, which
if set, will change the direction of the scroll wheel of the virtual
mouse.
Github-Issue: #45
When running in foreground, it is likely that it is running within
systemd. In this case, a stale PID file is likely to have a PID that
corresponds to a different process, which can still be kill'ed by the
root user. This results in a false positive that the process is still
running and causes the daemon to abort prematurely.
Fixes#42
This change adds a test suite for validating mouse configuration. This
only tests the logic for mouse thread enable/disable and mouse speed
calculations.
For some reason, the CI runs on Github Actions block the macOS runners,
and they take forever to run the tests. The tests are really needed only
on Linux, and the errno values that it uses are only verified to work on
Linux.
This change adds an automated test harness that will spin up an instance
of the X52 daemon, connect to its command socket, send commands and
validate the responses. This first set of test cases simply validates
the basic configuration file handling. Subsequent commits will enhance
the tests to improve code coverage.
The configuration processing works as follows - the configuration
parameters are set in memory, and an apply function applies all the
changes directly to the device. While this works during startup and
reload, it adds a needless overhead when processing config set commands
from the command socket.
This change makes it such that a `config set` command would update the
configuration for that particular key, and then immediately call the
callback function for that key. This has the effect that individual
configuration changes are visible immediately, without having to reapply
every other configuration that hasn't changed.
This commit also removes the `config apply` command, since it is no
longer needed. The `config load` and `config reload` already handle
applying the configuration after reading it.
Prior to this change, the IO thread would always report a mouse button
event, even if the mouse was disabled in configuration, or the uinput
device was not created. This results in unexpected button/wheel events.
This change checks that the uinput device has been created and the mouse
has been enabled in the configuration before reporting a button or wheel
event.
This change adds the `logging show` and `logging set` commands to the
command processor module. This allows setting the log levels of the
individual modules via the socket.
Prior to this change, it was possible for a malicious client to send a
buffer of 1024 NUL bytes, which would cause the parser to overflow the
argv array and eventually crash the program.
This change makes the length of the argv array the same as the length of
the recv buffer, which means that even an input of all 0 bytes would not
cause any issues. The client would just get a bunch of ERR responses in
return.
The command allows the client to retrieve individual parameters from the
configuration. This follows a similar syntax to the 'config set'
command, with the client supplying the section and key, and if there is
a matching entry in the configuration, it will return the corresponding
value.
This change removes the unnecessary response length field from the
output buffer. It was added to check for possible issues in the
communication between client and server, but is not needed anymore. This
also makes the communication protocol standardized between client and
server.
Prior to this change, the recv call was using the same buflen as that of
the send, which meant that the response would be truncated at by the
client, while the server was sending the entire message. This was
evident by running a Python client which manually called recv with the
maximum buffer size.
This change updates the prototype to take both a bufin (length of the
input buffer), and a bufout (length of the output buffer) argument,
instead of a single buflen. With this change, commands work as expected
in x52ctl.
This change allows setting the configuration from the socket. It behaves
similar to the override, and requires the client to send the section,
key and value, and responds with an OK or error value.
This change adds the generic command parsing logic, as well as the
response for the following commands:
* config load <file>
* config reload
* config save
* config dump <file>
This change makes the protocol more strict, in that the buffer sent to
the daemon must be a series of NUL separated arguments. This makes it a
little easier to handle the strings, especially those that may have
embedded whitespace.
This change adds the logic to read a packet from the socket, accept
connections from clients, and close connections from clients that have
hung up. This commit does not yet have support for parsing and handling
the commands, and simply echoes the request back to the client.
This change makes X52 daemon listen on a Unix socket. This is in
preparation for changes that will read from the socket and allow clients
to communicate with and control the daemon.
nirenjan