def ping(grid, curr_pos, goals):
shared_array_base = _Array(ctypes.c_int, len(goals) * 3)
result = _np.ctypeslib.as_array(shared_array_base.get_obj())
result = result.reshape(len(goals), 3)
processes = [
_Process(target=a_star_search, args=(result[i], grid, curr_pos, goal))
for i, goal in enumerate(goals)
]
for p in processes:
p.start()
for p in processes:
p.join()
cost = MAX_COST
index = -1
for i, x in enumerate(result):
if x[2] < cost and x[2] > 0: #and (x[0],x[1] in valid):
cost = x[2]
index = i
next_move = (result[index][0], result[index][1])
move = get_dir(curr_pos, next_move)
return move
def ping(grid, curr_pos, goals):
shared_array_base = _Array(ctypes.c_int, len(goals)*3)
result = _np.ctypeslib.as_array(shared_array_base.get_obj())
result = result.reshape(len(goals), 3)
processes = [ _Process(target=a_star_search, args=(result[i], grid, curr_pos, goal)) for i, goal in enumerate(goals) ]
for p in processes:
p.start();
for p in processes:
p.join();
cost = MAX_COST
index = -1
for i,x in enumerate(result):
if x[2] < cost and x[2] > 0: #and (x[0],x[1] in valid):
cost = x[2]
index = i
next_move = (result[index][0], result[index][1])
move = get_dir(curr_pos, next_move)
return move
def __init__(self,
auth_endpoint=None,
token_endpoint=None,
client_id=None,
redirect_uri=None):
self._auth_endpoint = auth_endpoint
self._token_endpoint = token_endpoint
self._client_id = client_id
self._redirect_uri = redirect_uri
self._code_verifier = _generate_code_verifier()
code_challenge = _create_code_challenge(self._code_verifier)
self._code_challenge = code_challenge
state = _generate_state_parameter()
self._state = state
self._credentials = None
self._refresh_token = None
self._headers = {"content-type": "application/x-www-form-urlencoded"}
self._expired = False
self._params = {
"client_id":
client_id, # This must match the Client ID of the OAuth application.
"response_type": "code", # Indicates the authorization code grant
"scope":
"openid offline_access", # ensures that the /token endpoint returns an ID and refresh token
# callback location where the user-agent will be directed to.
"redirect_uri": self._redirect_uri,
"state": state,
"code_challenge": code_challenge,
"code_challenge_method": "S256",
}
# Prefer to use already-fetched token values when they've been set globally.
self._refresh_token = _keyring.get_password(
_keyring_service_name, _keyring_refresh_token_storage_key)
access_token = _keyring.get_password(
_keyring_service_name, _keyring_access_token_storage_key)
if access_token:
self._credentials = Credentials(access_token=access_token)
return
# In the absence of globally-set token values, initiate the token request flow
q = _Queue()
# First prepare the callback server in the background
server = self._create_callback_server(q)
server_process = _Process(target=server.handle_request)
server_process.start()
# Send the call to request the authorization code
self._request_authorization_code()
# Request the access token once the auth code has been received.
auth_code = q.get()
server_process.terminate()
self.request_access_token(auth_code)
def __thread(self):
"""Monitor thread function."""
_current_thread().name = "Monitor%d" % (self.__id)
self.__prepared.set()
self.info("Creating the fork")
self.__worker = _Process(target=self.__procedure)
while not self.__events.waitStart(self.__checkPeriod):
self.debug("Waiting to start")
# FIXME: msg to be removed, together with the timeout
self.info("Starting the fork")
self.__worker.start()
self.__processMonitoring()
self.info("Monitor has finished its task")
def start(self):
args = (self._running,)
if self._manager is not None:
root = findroot(self._manager)
parent, child = Pipe()
self._bridge = Bridge(root, socket=parent)
self._bridge.start()
args = (self._running, child,)
self._process = _Process(target=self.__main__, args=args)
self._process.daemon = True
if HAS_MULTIPROCESSING == 2:
setattr(self._process, "isAlive", self._process.is_alive)
self._running.acquire()
self._running.value = True
self._running.release()
self._process.start()
def processes_start(self):
"""."""
# Create shared memory objects to be shared with worker processes.
arr = self._sofb_current_readback_ref
rbref = _shm.Array(_shm.ctypes.c_double, arr.size, lock=False)
self._sofb_current_readback_ref = _np.ndarray(
arr.shape, dtype=arr.dtype, buffer=memoryview(rbref))
ref = _shm.Array(_shm.ctypes.c_double, arr.size, lock=False)
self._sofb_current_refmon = _np.ndarray(
arr.shape, dtype=arr.dtype, buffer=memoryview(ref))
fret = _shm.Array(_shm.ctypes.c_int, arr.size, lock=False)
self._sofb_func_return = _np.ndarray(
arr.shape, dtype=_np.int32, buffer=memoryview(fret))
# Unit converter.
self.converter = UnitConverter(self._sofb_psnames)
# subdivide the pv list for the processes
nr_bbbs = len(PSSOFB.BBBNAMES)
div = nr_bbbs // self._nr_procs
rem = nr_bbbs % self._nr_procs
sub = [div*i + min(i, rem) for i in range(self._nr_procs+1)]
for i in range(self._nr_procs):
bbbnames = PSSOFB.BBBNAMES[sub[i]:sub[i+1]]
evt = _Event()
evt.set()
theirs, mine = _Pipe(duplex=False)
proc = _Process(
target=PSSOFB._run_process,
args=(self._ethbridge_cls, bbbnames, theirs, evt,
arr.shape, rbref, ref, fret),
daemon=True)
proc.start()
self._procs.append(proc)
self._doneevts.append(evt)
self._pipes.append(mine)
def start(self):
args = (self._running, )
if self._manager is not None:
root = findroot(self._manager)
parent, child = Pipe()
self._bridge = Bridge(root, socket=parent)
self._bridge.start()
args = (
self._running,
child,
)
self._process = _Process(target=self.__main__, args=args)
self._process.daemon = True
if HAS_MULTIPROCESSING == 2:
setattr(self._process, "isAlive", self._process.is_alive)
self._running.acquire()
self._running.value = True
self._running.release()
self._process.start()
def ping(grid, current, goals, last_dir):
current = tuple(current)
goals = [tuple(x) for x in goals]
shared_array_base = _Array(ctypes.c_int, len(goals) * 3)
result = _np.ctypeslib.as_array(shared_array_base.get_obj())
result = result.reshape(len(goals), 3)
#result = [ a_star_search([0,0,0], grid, current, goal) for goal in goals ]
processes = [
_Process(target=a_star_search, args=(result[i], grid, current, goal))
for i, goal in enumerate(goals)
]
#processes = [ _Process(target=a_star_search, args=(result, grid, current, goal)) ]
for p in processes:
p.start()
for p in processes:
p.join()
print "Results:", result
cost = 1000000000000000000000 #result[0][2]
index = -1
for i, x in enumerate(result):
if x[2] < cost and x[2] > 0:
cost = x[2]
index = i
if index == -1:
return last_dir
next_move = (result[index][0], result[index][1])
move = get_dir(current, next_move)
return move
def _generate_parallel(n_process, n_iter, gen_func, args_list):
"""
Generator which spawns processes to run generators, then uses a queue for each process to retrieve
the results which it then yields.
"""
n_items = len(args_list)
# calculate how to distribute generators over processes.
if n_items <= n_process and n_process > 0:
n_process = n_items
n_pp = 1
n_left = 1
elif n_items > n_process and n_process > 0:
n_pp = n_items // n_process
n_left = n_pp + n_items % n_process
# if one process specified just do the generator without sub processes.
if n_process <= 1:
gens = []
for arg in args_list:
gens.append(gen_func(*arg))
generator = _izip(*gens)
for s in generator:
yield s
return
# split up argument list
sub_lists = [args_list[0:n_left]]
sub_lists.extend([
args_list[n_left + i * n_pp:n_left + (i + 1) * n_pp]
for i in range(n_process - 1)
])
# create lists of queues, events, and processes.
es = []
qs = []
ps = []
for i in range(n_process):
e = _Event()
q = _Queue(1)
p = _Process(target=_worker, args=(gen_func, sub_lists[i], q, e))
p.daemon = True
es.append(e)
qs.append(q)
ps.append(p)
# start processes
for p in ps:
p.start()
# for number of iterations
for i in range(n_iter):
s = []
# retrieve results for each sub-process and let the process know to continue calculation.
for q, e in _izip(qs, es):
s.extend(q.get())
e.set() # free process to do next calculation
# yield all results
yield tuple(s)
# end processes
for p in ps:
p.join()
def __init__(self, *args, **kwargs):
super(Process, self).__init__(*args, **kwargs)
self.running = _Value("b", False)
self.process = _Process(target=self._run, args=(self.run, self.running,))
self.parent, self.child = _Pipe()
def __init__(self, *args, **kwargs):
super(Process, self).__init__(*args, **kwargs)
self._running = _Value("b", False)
self.process = _Process(target=self._run, args=(self.run, self._running,))
self.parent, self.child = _Pipe()
