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#!/usr/bin/env python
#
# Copyright 2017 Ettus Research (National Instruments)
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
"""
Main executable for the USRP Hardware Daemon
"""
from __future__ import print_function
from logging import getLogger
from logging import StreamHandler
from logging import DEBUG
from logging import Formatter
import signal
import sys
import usrp_mpm as mpm
from usrp_mpm.types import shared_state
from usrp_mpm.periph_manager import periph_manager
log = getLogger("usrp_mpm")
_PROCESSES = []
def kill_time(signal, frame):
"""
kill all processes
to be used in a signal handler
"""
for proc in _PROCESSES:
proc.terminate()
log.info("Terminating pid: {0}".format(proc.pid))
for proc in _PROCESSES:
proc.join()
log.info("System exiting")
sys.exit(0)
def main():
"""
Go, go, go!
Main process loop.
"""
# Setup logging
log.setLevel(DEBUG)
ch = StreamHandler()
ch.setLevel(DEBUG)
formatter = Formatter('[%(asctime)s] [%(levelname)s] [%(name)s] [%(message)s]')
ch.setFormatter(formatter)
log.addHandler(ch)
shared = shared_state()
mgr = periph_manager()
_PROCESSES.append(
mpm.spawn_discovery_process({'serial': mgr.get_serial()}, shared))
_PROCESSES.append(
mpm.spawn_rpc_process(mpm.types.MPM_RPC_PORT, shared, mgr))
signal.signal(signal.SIGTERM, kill_time)
signal.signal(signal.SIGINT, kill_time)
signal.pause()
if __name__ == '__main__':
exit(not main())
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