def __init__(self, threadpool):
# Construct in the main thread (owner of the threadpool)
# The parent greenlet and thread identifier will be set once the
# new thread begins running.
RawGreenlet.__init__(self)
self._hub = threadpool.hub
# Avoid doing any imports in the background thread if it's not
# necessary (monkey.get_original imports if not patched).
# Background imports can hang Python 2 (gevent's thread resolver runs in the BG,
# and resolving may have to import the idna module, which needs an import lock, so
# resolving at module scope)
if monkey.is_module_patched('sys'):
stderr = monkey.get_original('sys', 'stderr')
else:
stderr = sys.stderr
self._stderr = stderr
# We can capture the task_queue; even though it can change if the threadpool
# is re-innitted, we won't be running in that case
self._task_queue = threadpool.task_queue # type:gevent._threading.Queue
self._task_queue_cookie = self._task_queue.allocate_cookie()
self._unregister_worker = threadpool._unregister_worker
threadpool._register_worker(self)
try:
start_new_thread(self._begin, ())
except:
self._unregister_worker(self)
raise
def thread(func):
"""Thread decorator
Takes a function and spawns it as a daemon thread using the
real OS thread regardless of monkey patching.
"""
start_new_thread(func, ())
def _add_thread(self):
with self._lock:
self._size += 1
try:
start_new_thread(self._worker, ())
except:
with self._lock:
self._size -= 1
raise
def _add_thread(self):
with self._lock:
self._size += 1
try:
start_new_thread(self._worker, ())
except:
with self._lock:
self._size -= 1
raise
def _add_thread(self):
with self._lock:
self._size += 1
try:
start_new_thread(self.__trampoline, ())
except:
with self._lock:
self._size -= 1
raise
def _add_thread(self):
with self._lock:
self._size += 1
try:
start_new_thread(self.__trampoline, ())
except:
with self._lock:
self._size -= 1
raise
def __init__(self, redis, bus_id, channels_bus_list):
self._id = bus_id
# create socket
self._bus_socket = nanomsg.Socket(nanomsg.BUS)
bus_socket_port_number = get_free_port(redis,CHANNELS_BUS)
self._bus_socket.bind("tcp://*:%d" % bus_socket_port_number)
BUS_BY_FD[self.recv_fd] = self
# connect to other bus sockets
for remote_bus in channels_bus_list:
self._bus_socket.connect(remote_bus)
self.__bus_addr = "tcp://%s:%d" % (socket.getfqdn(), bus_socket_port_number)
# remove address in redis at exit
atexit.register(_clean_redis, redis, self.addr)
# receiver thread takes care of dispatching received values to right channels
global RECEIVER_THREAD
if RECEIVER_THREAD is None:
global WAKE_UP_SOCKET_W
global WAKE_UP_SOCKET_R
WAKE_UP_SOCKET_W = nanomsg.Socket(nanomsg.PAIR)
WAKE_UP_SOCKET_W.bind("inproc://beacon/channels/wake_up_loop")
WAKE_UP_SOCKET_R = nanomsg.Socket(nanomsg.PAIR)
WAKE_UP_SOCKET_R.connect("inproc://beacon/channels/wake_up_loop")
RECEIVER_THREAD = threading.start_new_thread(receive_channels_values, ())
atexit.register(stop_receiver_thread)
else:
WAKE_UP_SOCKET_W.send('!')
def __init__(self):
self.setting_names = ["velocity", "position", "dial_position", "_set_position", "state",
"offset", "acceleration", "low_limit", "high_limit"]
from bliss.common import axis
self.convert_funcs = {
"velocity": float,
"position": float,
"dial_position": float,
"_set_position": float,
"state": axis.AxisState,
"offset": float,
"low_limit": float,
"high_limit": float,
"acceleration": float}
self.axis_settings_dict = dict()
from bliss.config import motors as config
global SETTINGS_WRITER_THREAD
global SETTINGS_WRITER_QUEUE
global SETTINGS_WRITER_WATCHER
if SETTINGS_WRITER_THREAD is None:
if config.BACKEND == 'xml':
SETTINGS_WRITER_QUEUE = _threading.Queue()
SETTINGS_WRITER_WATCHER = _threading.Event()
SETTINGS_WRITER_WATCHER.set()
atexit.register(wait_settings_writing)
if SETTINGS_WRITER_THREAD is None:
SETTINGS_WRITER_THREAD = _threading.start_new_thread(
write_settings, ())
else:
SETTINGS_WRITER_QUEUE = gevent.queue.Queue()
SETTINGS_WRITER_WATCHER = gevent.event.Event()
SETTINGS_WRITER_WATCHER.set()
if SETTINGS_WRITER_THREAD is None:
SETTINGS_WRITER_THREAD = gevent.spawn(write_settings)
def check_gevent_thread():
global gevent_thread
if gevent_thread is None:
with gevent_thread_lock:
gevent_thread = _threading.start_new_thread(
process_requests, (main_queue,))
gevent_thread_started.wait()
def check_gevent_thread():
global gevent_thread
if gevent_thread is None:
with gevent_thread_lock:
gevent_thread = _threading.start_new_thread(
process_requests, (main_queue, ))
gevent_thread_started.wait()
def start(self):
"""Start the thread."""
from gevent._threading import start_new_thread
self.quit = False
self.has_quit = False
threading._limbo[self] = self
try:
self._tident = start_new_thread(self.run, tuple())
except Exception:
del threading._limbo[self]
PERIODIC_THREAD_IDS.add(self._tident)
def __init__(self, redis, bus_id, channels_bus_list):
self._id = bus_id
# create sockets
self._bus_socket = nanomsg.Socket(nanomsg.BUS)
self._respondent_socket = nanomsg.Socket(nanomsg.RESPONDENT)
bus_socket_port_number = get_free_port(redis, CHANNELS_BUS)
self._bus_socket.bind("tcp://*:%d" % bus_socket_port_number)
BUS_BY_FD[self.recv_fd] = self
# connect to other bus sockets
for remote_bus in channels_bus_list:
self._bus_socket.connect(remote_bus)
self.__bus_addr = "tcp://%s:%d" % (socket.getfqdn(),
bus_socket_port_number)
# respondent socket is used to reply to survey requests
respondent_socket_port_number = get_free_port(redis,
CHANNELS_RESPONDENT)
self._respondent_socket.bind("tcp://*:%d" %
respondent_socket_port_number)
BUS_BY_FD[self._respondent_socket.recv_fd] = self
self.__bus_respondent_addr = "tcp://%s:%d" % (
socket.getfqdn(), respondent_socket_port_number)
# remove addresses in redis at exit
atexit.register(_clean_redis, redis, self.addr, self.respondent_addr)
# receiver thread takes care of dispatching received values to right channels
global RECEIVER_THREAD
if RECEIVER_THREAD is None:
global WAKE_UP_SOCKET_W
global WAKE_UP_SOCKET_R
WAKE_UP_SOCKET_W = nanomsg.Socket(nanomsg.PAIR)
WAKE_UP_SOCKET_W.bind("inproc://beacon/channels/wake_up_loop")
WAKE_UP_SOCKET_R = nanomsg.Socket(nanomsg.PAIR)
WAKE_UP_SOCKET_R.connect("inproc://beacon/channels/wake_up_loop")
RECEIVER_THREAD = threading.start_new_thread(
receive_channels_values, ())
atexit.register(stop_receiver_thread)
else:
WAKE_UP_SOCKET_W.send('!')
def start_delayed(self, delay):
self.delay = delay
_threading.start_new_thread(self.run, ()) # self.start()
def start_delayed(self, delay):
self.delay = delay
_threading.start_new_thread(self.run, ()) #self.start()
