The rpc_server_process was spawning with its parameters reversed. The
calling function also had its parameters reversed, so this is
functionally the same. This change makes sure that the parameters are
aligned with the arguments throughout the callstack.
Signed-off-by: mattprost <matt.prost@ni.com>
This commit adds a device::register_device which allows uhd to start up
a simulator when uhd is called with the arguments type=sim. Creating the
device object creates a subprocess using pybind and an embedded
interpreter, and destroying the object cleans up those subprocesses.
Signed-off-by: Samuel O'Brien <sam.obrien@ni.com>
Sometimes when running usrp_hwd.py in a terminal and then canceling it
with Ctrl+C, it prints a really large stacktrace into the terminal
resulting from an uncaught gevent BlockingSwitchOutError. This comes
from trying to block on Process#join inside a gevent signal handler.
This commit resolves this issue by simply triggering an event in the
signal handler which prompts a different non-daemon thread to join the
subprocesses and end the parent process.
Signed-off-by: Samuel O'Brien <sam.obrien@ni.com>
Sometimes when running usrp_hwd.py in a terminal and then canceling it
with Ctrl+C, it prints a really large stacktrace into the terminal
resulting from an uncaught gevent BlockingSwitchOutError. It seems like
there was an attempt to catch this in usrp_hwd.py:kill_time(). This
try-except was surrounding a call to Process.join() which, to the best
of my knowledge, can't ever throw this exception.
Based on my troubleshooting, this error comes from the SIGTERM signal
handler of the RPC process. The handler (defined in
rpc_server.py:_rpc_server_process), is just a direct call to
RPCServer.stop(). When the server's backed is a thread pool, this call
may block when joining the thread pool, causing gevent to complain about
execution attempting to block in a signal handler.
This commit resolves this issue by simply triggering an event in the
signal handler which prompts a different thread to clean up the server
and end the process.
Signed-off-by: Samuel O'Brien <sam.obrien@ni.com>
No functional changes. Fixes for things that PyLint complains about, but
are safe to change anyway, as well as a minor improvement to a docstring
that referenced non-existant args.
This touches files that are mpm.conf-related.
Openembedded release warrior includes python3-gevent 1.4.0 which
leads to the following error when starting usrp-hwd.py:
ImportError: cannot import name 'BlockingSwitchOutError' from 'gevent.hub'
This commit fixes the issue.
Signed-off-by: Joerg Hofrichter <joerg.hofrichter@ni.com>
- Allow to set default args via config file
- Read them from prefs API
- override-db-pids uses the same APIs now ([overrides] section in
config file, prefs API, and same dictionary as --default-args when
used on the command line
- Updated systemd service file
- Added health status flag in shared data object
- Added thread in RPC process to update watchdog
Reviewed-by: Moritz Fischer <moritz.fischer@ettus.com>
Upon updating certain components (the FPGA, for example), the
Peripheral Manager is restarted, and the overlay is reapplied. In order
to facilitate this, the RPC server intercepts and handles the
update_component function.
Tested on the RJ45 ethernet connection. It probably won't work as well
if the SFP connection goes down when the overlay is removed.
- Creates mpm/ subdirectory
- First pass at hardware daemon/MPM
- New code for LMK04828, AD9371
- spidev integration
Contributions by:
Martin Braun <martin.braun@ettus.com>
Derek Kozel <derek.kozel@ettus.com>
Mark Meserve <mark.meserve@ni.com>
Andrej Rode <andrej.rode@ettus.com>
