01ba0a4d2c
reintroduced caching of stripes & controllers added session cleanup handling renamed --daemon to --detach for better understanding added coloredlogs to make logs better readable and more appealing
131 lines
3.5 KiB
Python
131 lines
3.5 KiB
Python
#!/usr/bin/python3
|
|
|
|
# LEDD Project
|
|
# Copyright (C) 2015 LEDD Team
|
|
#
|
|
# 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/>.
|
|
|
|
"""LedD Daemon
|
|
|
|
Usage:
|
|
ledd.py [--detach] [-d | --debug] [-v | --verbose]
|
|
ledd.py -h | --help
|
|
ledd.py --version
|
|
|
|
Options:
|
|
-h --help Show this screen.
|
|
--version Show version.
|
|
-d --debug Show debug output. (not recommended)
|
|
-v --verbose Be verbose.
|
|
--detach Detach after start.
|
|
"""
|
|
|
|
import logging
|
|
import sys
|
|
import os
|
|
from pkgutil import iter_modules
|
|
|
|
import coloredlogs
|
|
from docopt import docopt
|
|
|
|
import ledd.daemon
|
|
import ledd
|
|
|
|
if "smbus" not in (name for loader, name, ispkg in iter_modules()):
|
|
print("smbus not found, installing replacement")
|
|
|
|
|
|
class SMBus:
|
|
def __init__(self, i2c_address):
|
|
self.i2c_address = i2c_address
|
|
self.channels = {}
|
|
|
|
def write_word_data(self, addr, cmd, val):
|
|
if (cmd - 6) % 4 == 0:
|
|
self.channels[(cmd - 6) // 4] = val
|
|
|
|
def read_word_data(self, addr, cmd):
|
|
if (cmd - 8) // 4 not in self.channels:
|
|
self.channels[(cmd - 8) // 4] = 0
|
|
return self.channels[(cmd - 8) // 4]
|
|
|
|
|
|
class SMBusModule:
|
|
SMBus = SMBus
|
|
|
|
|
|
sys.modules['smbus'] = SMBusModule
|
|
sys.modules['smbus'].SMBus = SMBus
|
|
|
|
|
|
def pid_exists(processid):
|
|
if processid < 0:
|
|
return False
|
|
try:
|
|
os.kill(processid, 0)
|
|
except ProcessLookupError:
|
|
return False
|
|
except PermissionError:
|
|
return True
|
|
else:
|
|
return True
|
|
|
|
|
|
if __name__ == "__main__":
|
|
arguments = docopt(__doc__, version='LedD Daemon ' + ledd.VERSION)
|
|
lvl = logging.WARNING
|
|
|
|
if arguments['--verbose']:
|
|
lvl = logging.INFO
|
|
|
|
if arguments['--debug']:
|
|
lvl = logging.DEBUG
|
|
|
|
log = logging.getLogger(__name__)
|
|
coloredlogs.install(level=lvl)
|
|
|
|
try:
|
|
with open('ledd.pid', 'r') as f:
|
|
spid = f.read()
|
|
if spid:
|
|
if pid_exists(int(spid)):
|
|
log.fatal("A instance of the program is already running, exiting...")
|
|
sys.exit(5)
|
|
else:
|
|
log.warning("Found stale pid file, assuming unclean shutdown.")
|
|
except FileNotFoundError:
|
|
pass
|
|
|
|
if arguments['--detach']:
|
|
wdir = os.path.dirname(os.path.realpath(__file__))
|
|
try:
|
|
pid = os.fork()
|
|
if pid == 0:
|
|
os.setsid()
|
|
pid2 = os.fork()
|
|
if pid2 == 0:
|
|
os.umask(0)
|
|
os.chdir(wdir)
|
|
with open("ledd.pid", 'w') as pidf:
|
|
pidf.write(str(os.getpid()) + '\n')
|
|
ledd.daemon.run()
|
|
else:
|
|
sys.exit()
|
|
else:
|
|
sys.exit()
|
|
except OSError as e:
|
|
log.fatal("Start failed: %s", e)
|
|
else:
|
|
ledd.daemon.run()
|