def run_maestral_daemon(config_name="maestral", run=True, log_to_stdout=False):
"""
Wraps :class:`maestral.main.Maestral` as Pyro daemon object, creates a new instance
and start Pyro's event loop to listen for requests on a unix domain socket. This call
will block until the event loop shuts down.
This command will return silently if the daemon is already running.
:param str config_name: The name of the Maestral configuration to use.
:param bool run: If ``True``, start syncing automatically. Defaults to ``True``.
:param bool log_to_stdout: If ``True``, write logs to stdout. Defaults to ``False``.
"""
from maestral.main import Maestral
sock_name = sockpath_for_config(config_name)
pid_name = pidpath_for_config(config_name)
lockfile = PIDLockFile(pid_name)
# acquire PID lock file
try:
lockfile.acquire(timeout=1)
except AlreadyLocked:
if is_pidfile_stale(lockfile):
lockfile.break_lock()
else:
logger.debug(f"Maestral already running")
return
logger.debug(f"Starting Maestral daemon on socket '{sock_name}'")
try:
# clean up old socket, create new one
try:
os.remove(sock_name)
except FileNotFoundError:
pass
daemon = Daemon(unixsocket=sock_name)
# start Maestral as Pyro server
ExposedMaestral = expose(Maestral)
# mark stop_sync and shutdown_daemon as oneway methods
# so that they don't block on call
ExposedMaestral.stop_sync = oneway(ExposedMaestral.stop_sync)
ExposedMaestral.shutdown_pyro_daemon = oneway(
ExposedMaestral.shutdown_pyro_daemon)
m = ExposedMaestral(config_name, run=run, log_to_stdout=log_to_stdout)
daemon.register(m, f"maestral.{config_name}")
daemon.requestLoop(loopCondition=m._loop_condition)
daemon.close()
except Exception:
traceback.print_exc()
finally:
# remove PID lock
lockfile.release()
def main():
config = configparser.ConfigParser()
# does not throw an error, just returns the empty set if the file doesn't exist
config.read(CONFIG.BASEPATH + '/config/iGrill_config.ini')
loglevel = config.get("Logging", "LogLevel", fallback="Error")
logfile = config.get("Logging", "LogFile", fallback="")
parser = argparse.ArgumentParser(
description='Runs a thread to control the buzzer')
parser.add_argument('-l',
'--log-level',
action='store',
dest='log_level',
default=loglevel,
help='Set log level, default: \'' + loglevel + '\'')
parser.add_argument('-d',
'--log-destination',
action='store',
dest='log_destination',
default=logfile,
help='Set log destination (file), default: \'' +
logfile + '\'')
options = parser.parse_args()
SetupLog(options.log_level, options.log_destination)
daemon = Daemon(host=BUZZ.DAEMON.PYRO_HOST, port=BUZZ.DAEMON.PYRO_PORT)
buzzObj = Buzzer(daemon)
uri = daemon.register(buzzObj, objectId=BUZZ.DAEMON.PYRO_OBJECT_ID)
logging.debug(uri)
daemon.requestLoop()
logging.debug('exited requestLoop')
daemon.shutdown()
daemon.close()
logging.debug('daemon closed')
sys.exit(buzzObj.ExitCode())
def main():
gui = PyroGUI()
# create a pyro daemon with object
daemon = Daemon()
obj = MessagePrinter(gui)
uri = daemon.register(obj, "pyrogui.message")
gui.add_message("Pyro server started. Not using threads.")
gui.add_message("Use the command line client to send messages.")
urimsg = "Pyro object uri = {0}".format(uri)
gui.add_message(urimsg)
print(urimsg)
# add a Pyro event callback to the gui's mainloop
gui.install_pyro_event_callback(daemon)
# enter the mainloop
gui.mainloop()
from Pyro5.api import locate_ns, Daemon, type_meta, Proxy
from resources import LaserPrinter, MatrixPrinter, PhotoPrinter, TapeStorage, DiskStorage, Telephone, Faxmachine
# register various objects with some metadata describing their resource class
ns = locate_ns()
d = Daemon()
uri = d.register(LaserPrinter)
ns.register("example.resource.laserprinter",
uri,
metadata=type_meta(LaserPrinter)
| {"resource:printer", "performance:fast"})
uri = d.register(MatrixPrinter)
ns.register("example.resource.matrixprinter",
uri,
metadata=type_meta(MatrixPrinter)
| {"resource:printer", "performance:slow"})
uri = d.register(PhotoPrinter)
ns.register("example.resource.photoprinter",
uri,
metadata=type_meta(PhotoPrinter)
| {"resource:printer", "performance:slow"})
uri = d.register(TapeStorage)
ns.register("example.resource.tapestorage",
uri,
metadata=type_meta(TapeStorage)
| {"resource:storage", "performance:slow"})
uri = d.register(DiskStorage)
ns.register("example.resource.diskstorage",
uri,
metadata=type_meta(DiskStorage)
import time
from Pyro5.api import expose, locate_ns, Daemon, config
@expose
class TimeoutServer(object):
def delay(self, amount):
print("sleeping %d" % amount)
time.sleep(amount)
print("done.")
return "slept %d seconds" % amount
config.COMMTIMEOUT = 0 # the server won't be using timeouts
ns = locate_ns()
daemon = Daemon()
daemon2 = Daemon()
obj = TimeoutServer()
obj2 = TimeoutServer()
uri = daemon.register(obj)
uri2 = daemon2.register(obj2)
ns.register("example.timeout", uri)
ns.register("example.timeout.frozendaemon", uri2)
print("Server ready.")
# Note that we're only starting one of the 2 daemons.
# daemon2 is not started, to simulate connection timeouts.
daemon.requestLoop()
help="hostname to bind server on")
parser.add_option("-p",
"--port",
dest="port",
type="int",
default=0,
help="port to bind server on (0=random)")
parser.add_option("-u",
"--unixsocket",
help="Unix domain socket name to bind server on")
parser.add_option("-s",
"--storage",
dest="storage",
type="choice",
choices=["sqlite", "memory"],
default="sqlite",
help="storage type (default=%default)")
options, args = parser.parse_args()
make_messagebus.storagetype = options.storage
daemon = Daemon(host=options.host,
port=options.port,
unixsocket=options.unixsocket)
uri = daemon.register(MessageBus)
print("Pyro Message Bus.")
print(" uri =", uri)
ns = locate_ns()
ns.register(PYRO_MSGBUS_NAME, uri)
print(" name =", PYRO_MSGBUS_NAME)
print("Server running, storage is {}.".format(make_messagebus.storagetype))
daemon.requestLoop()
def run_maestral_daemon(config_name='maestral', run=True, log_to_stdout=False):
"""
Wraps :class:`maestral.main.Maestral` as Pyro daemon object, creates a new instance
and start Pyro's event loop to listen for requests on a unix domain socket. This call
will block until the event loop shuts down.
This command will return silently if the daemon is already running.
:param str config_name: The name of the Maestral configuration to use.
:param bool run: If ``True``, start syncing automatically. Defaults to ``True``.
:param bool log_to_stdout: If ``True``, write logs to stdout. Defaults to ``False``.
"""
import threading
from maestral.main import Maestral
sock_name = sockpath_for_config(config_name)
pid_name = pidpath_for_config(config_name)
lockfile = PIDLockFile(pid_name)
if threading.current_thread() is threading.main_thread():
signal.signal(signal.SIGTERM, _sigterm_handler)
# acquire PID lock file
try:
lockfile.acquire(timeout=1)
except (AlreadyLocked, LockTimeout):
if is_pidfile_stale(lockfile):
lockfile.break_lock()
else:
logger.debug(f'Maestral already running')
return
# Nice ourselves give other processes priority. We will likely only
# have significant CPU usage in case of many concurrent downloads.
os.nice(10)
logger.debug(f'Starting Maestral daemon on socket "{sock_name}"')
try:
# clean up old socket
try:
os.remove(sock_name)
except FileNotFoundError:
pass
daemon = Daemon(unixsocket=sock_name)
# start Maestral as Pyro server
ExposedMaestral = expose(Maestral)
# mark stop_sync and shutdown_daemon as one way
# methods so that they don't block on call
ExposedMaestral.stop_sync = oneway(ExposedMaestral.stop_sync)
ExposedMaestral.pause_sync = oneway(ExposedMaestral.pause_sync)
ExposedMaestral.shutdown_pyro_daemon = oneway(
ExposedMaestral.shutdown_pyro_daemon)
m = ExposedMaestral(config_name, run=run, log_to_stdout=log_to_stdout)
daemon.register(m, f'maestral.{config_name}')
daemon.requestLoop(loopCondition=m._loop_condition)
daemon.close()
except Exception:
traceback.print_exc()
except (KeyboardInterrupt, SystemExit):
logger.info('Received system exit')
sys.exit(0)
finally:
lockfile.release()
#!/usr/bin/env python3
"""Daemon."""
from Pyro5.api import Daemon, expose, behavior, serve, current_context, oneway
from gpio_led import LEDPanel
@expose
@behavior(instance_mode="single")
class Photobooth(object):
"""Photobooth daemon."""
def __init__(self):
self.ledPanelCtl = None
@oneway
def ledCtl(self, action, resume, brightness, kwargs):
if not self.ledPanelCtl:
self.ledPanelCtl = LEDPanel().get_effects()
self.ledPanelCtl.abort()
self.ledPanelCtl.run(action, resume, brightness, kwargs)
if __name__ == "__main__":
daemon = Daemon(host="localhost", port=9090)
uri = daemon.register(Photobooth, 'ledpanel.control')
daemon.requestLoop()
# create our own socket pair (server-client sockets that are already connected)
sock1, sock2 = socket.socketpair()
class Echo(object):
@expose
def echo(self, message):
print("server got message: ", message)
return "thank you"
# create a daemon with some Pyro objectrunning on our custom server socket
daemon = Daemon(connected_socket=sock1)
daemon.register(Echo, "echo")
print("(Pyro daemon running on", daemon.locationStr, ")\n")
daemonthread = threading.Thread(target=daemon.requestLoop)
daemonthread.daemon = True
daemonthread.start()
# create a client running on the client socket
with Proxy("echo", connected_socket=sock2) as p:
reply = p.echo("hello!")
print("client got reply:", reply)
reply = p.echo("hello again!")
print("client got reply:", reply)
with Proxy("echo", connected_socket=sock2) as p:
reply = p.echo("hello2!")
print("client got reply:", reply)
def main(log_to_file=True):
import pkg_resources
version = pkg_resources.require('humidifier-controller')[0].version
print('Starting Humidifier Controller Server, version: ' + version)
config.SERVERTYPE = 'multiplex'
daemon = Daemon()
def start_client_logger():
from threading import Thread
t = Thread(target=Logger,
kwargs={'log_to_file': log_to_file},
daemon=True)
t.start()
return t
def signal_handler(signo, frame):
if daemon != None:
daemon.transportServer.shutting_down = True
print(f'Shutting down gracefully exit code: {signo}')
daemon.shutdown()
from threading import enumerate
logger_threads = [
thread for thread in enumerate() if isinstance(thread, Logger)
]
for logger_thread in logger_threads:
print("Stopping {}.".format(logger_thread))
logger_thread.stop()
sys.exit(1)
import signal
for sig in ('TERM', 'HUP', 'INT'):
signal.signal(getattr(signal, 'SIG' + sig), signal_handler)
nameserverDaemon = None
try:
nameserverUri, nameserverDaemon, broadcastServer = start_ns()
assert broadcastServer is not None, "expect a broadcast server to be created"
print("got a Nameserver, uri=%s" % nameserverUri)
except OSError:
print('Pyro nameserver already running. No idea who started it.')
if (nameserverDaemon == None):
with locate_ns() as ns:
try:
ns.lookup('serial_server.serial_connection')
print("Serial server is already registered. Aborting.")
return 0
except:
pass
serial_connection = SerialConnection(baudrate='9600')
serial_connection.set_settings(serial_connection.read_settings())
serial_connection.post_message('\0')
serial_uri = daemon.register(serial_connection)
if (nameserverDaemon == None):
with locate_ns() as ns:
ns.register('serial_server.serial_connection', serial_uri)
else:
nameserverDaemon.nameserver.register('serial_server.serial_connection',
serial_uri)
daemon.combine(nameserverDaemon)
daemon.combine(broadcastServer)
print('Serial connection registered.')
start_client_logger()
daemon.requestLoop()
class Test_KasaDaemon(unittest.TestCase):
def setUp(self):
self.m_daemon = Daemon(host=KASA.DAEMON.PYRO_HOST,
port=KASA.DAEMON.PYRO_PORT)
# This must be scoped oddly. Daemon uses sockets so we don't want to mock the socket
# object untill the daemon is setup.
with mock.patch('pygrill.kasa.kasa_daemon.socket.socket') as mockitem:
self.m_mock_inst = mockitem.return_value
self.m_mock_inst.recvfrom.return_value = [kasa_daemon.Encrypt(
TEST.KASA.DAEMON.DISCOVER_RSP), ['192.168.0.0', 9999]]
self.m_mock_inst.recv.return_value = kasa_daemon.EncryptWithHeader(
TEST.KASA.DAEMON.DISCOVER_RSP)
self.m_kasaDaemon = kasa_daemon.Kasa(self.m_daemon)
self.m_daemon.register(
self.m_kasaDaemon, objectId=KASA.DAEMON.PYRO_OBJECT_ID)
def tearDown(self):
self.m_kasaDaemon.Exit()
self.m_daemon.close()
self.assertEqual(self.m_kasaDaemon.ExitCode(), 0)
def test_Power(self):
# Since the above mock is out of scope, we must create a new mock here
with mock.patch('pygrill.kasa.kasa_daemon.socket.socket') as mockitem:
mock_inst = mockitem.return_value
mock_inst.recv.return_value = kasa_daemon.EncryptWithHeader(
TEST.KASA.DAEMON.OFF_ON_NO_ERROR_RSP)
self.m_kasaDaemon.TurnPlugOn()
self.assertListEqual(self.m_kasaDaemon.GetErrors(), list())
mock_inst.send.assert_called_with(
kasa_daemon.EncryptWithHeader(KASA.DAEMON.JSON_PLUG_ON))
mock_inst.reset_mock()
mock_inst.recv.return_value = kasa_daemon.EncryptWithHeader(
TEST.KASA.DAEMON.ON_ON_NO_ERROR_RSP)
self.m_kasaDaemon.TurnPlugOn()
self.assertListEqual(self.m_kasaDaemon.GetErrors(), list())
mock_inst.send.assert_called_with(
kasa_daemon.EncryptWithHeader(KASA.DAEMON.JSON_COUNTDOWN_DELETE_AND_RUN))
mock_inst.reset_mock()
mock_inst.recv.return_value = kasa_daemon.EncryptWithHeader(
TEST.KASA.DAEMON.ON_OFF_NO_ERROR_RSP)
self.m_kasaDaemon.TurnPlugOff()
self.assertListEqual(self.m_kasaDaemon.GetErrors(), list())
mock_inst.send.assert_called_with(
kasa_daemon.EncryptWithHeader(KASA.DAEMON.JSON_PLUG_OFF))
mock_inst.reset_mock()
mock_inst.recv.return_value = kasa_daemon.EncryptWithHeader(
TEST.KASA.DAEMON.OFF_OFF_NO_ERROR_RSP)
self.m_kasaDaemon.TurnPlugOff()
self.assertListEqual(self.m_kasaDaemon.GetErrors(), list())
mock_inst.send.assert_called_with(
kasa_daemon.EncryptWithHeader(KASA.DAEMON.JSON_COUNTDOWN_DELETE))
mock_inst.reset_mock()
mock_inst.recv.return_value = kasa_daemon.EncryptWithHeader(
TEST.KASA.DAEMON.OFF_ERROR_RSP)
self.m_kasaDaemon.TurnPlugOff()
mock_inst.send.assert_called_with(
kasa_daemon.EncryptWithHeader(KASA.DAEMON.JSON_COUNTDOWN_DELETE))
resp = list()
resp.append(kasa_daemon.Decrypt(
kasa_daemon.Encrypt(TEST.KASA.DAEMON.OFF_ERROR_RSP)))
resp.append(kasa_daemon.Decrypt(
kasa_daemon.Encrypt(TEST.KASA.DAEMON.OFF_ERROR_RSP)))
print(self.m_kasaDaemon.GetErrors())
self.assertListEqual(self.m_kasaDaemon.GetErrors(), resp)
mock_inst.send.assert_called()
mock_inst.reset_mock()
self.assertEqual(self.m_kasaDaemon.GetActive(), False)
def test_IP(self):
self.assertEqual(self.m_kasaDaemon.GetIP(), "192.168.0.0")
# initialize the logger so you can see what is happening with the callback exception message:
logging.basicConfig(stream=sys.stderr, format="[%(asctime)s,%(name)s,%(levelname)s] %(message)s")
log = logging.getLogger("Pyro5")
log.setLevel(logging.WARNING)
class CallbackHandler(object):
@expose
@callback
def call2(self):
print("\n\ncallback 2 received from server!")
print("going to crash - but you will see the exception printed here too:")
daemon = Daemon()
callback = CallbackHandler()
daemon.register(callback)
homeBroker = Proxy("PYRONAME:home.broker.server")
# homeBroker.doCallback(callback) # this is a oneway call, so we can continue right away
print("waiting for callbacks to arrive...")
print("(ctrl-c/break the program once it's done)")
def printMenu():
print("-----------HOME BROKER-----------")
print("1) Adicionar ação às minhas cotações")
print("2) Remover ação às minhas cotações")
print("3) Ver minha lista de cotações")
print("4) Comprar ação")
print("5) Vender ação")
def run(self):
daemon = Daemon()
obj = MessagePrinter(self.gui)
self.uri = daemon.register(obj, "pyrogui.message2")
self.started.set()
daemon.requestLoop()
for t in topics:
self.message_counter[t] = 0
self.last_message[t] = None
def consume_message(self, topic, message):
self.message_counter[topic] += 1
self.last_message[topic] = message
def clear_screen():
os.system(['clear', 'cls'][os.name == 'nt'])
subber = Subber()
d = Daemon()
d.register(subber)
daemon_thread = threading.Thread(target=d.requestLoop)
daemon_thread.daemon = True
daemon_thread.start()
# mass subscribe to all available topics
topics = list(sorted(subber.bus.topics()))
subber.init_counters(topics)
for t in topics:
subber.bus.subscribe(t, subber)
# show a table of the active topics on the bus
while True:
clear_screen()
print(time.ctime(), "-- active topics on the messagebus:")
print("{:20} : {:5} {} {}".format("topic", "count", "last_recv", "last message data"))
# object, we could skip all this and just register as usual.
# That works because the proxy, when reconnecting, will do a new nameserver lookup
# and receive the new object uri back. This REQUIRES:
# - clients will never connect using a PYRO-uri
# - client proxy._pyroBind() is never called
# BUT for sake of example, and because we really cannot guarantee the above,
# here we go for the safe route and reuse our previous object id.
ns = locate_ns()
try:
existing = ns.lookup("remote")
print("Object still exists in Name Server with id: %s" % existing.object)
print("Previous daemon socket port: %d" % existing.port)
# start the daemon on the previous port
daemon = Daemon(port=existing.port)
# register the object in the daemon with the old objectId
daemon.register(TestClass, objectId=existing.object)
except Pyro5.errors.NamingError:
print("There was no previous registration in the name server.")
# just start a new daemon on a random port
daemon = Daemon()
# register the object in the daemon and let it get a new objectId
# also need to register in name server because it's not there yet.
uri = daemon.register(TestClass)
ns.register("remote2", uri)
print("Server started.")
daemon.requestLoop()
# note: we are not removing the name server registration when terminating!
