def __init__(self, mpstate):
self.param_received = {}
self.paramchanged = {}
self.event_queue = multiproc.Queue()
self.event_queue_lock = multiproc.Lock()
self.gui_event_queue = multiproc.Queue()
self.gui_event_queue_lock = multiproc.Lock()
self.close_window = multiproc.Semaphore()
self.close_window.acquire()
self.mpstate = mpstate
self.mpstate.param_editor = self
self.needs_unloading = False
self.child = multiproc.Process(
target=self.child_task,
args=(self.event_queue, self.event_queue_lock,
self.gui_event_queue, self.gui_event_queue_lock,
self.close_window))
self.child.start()
self.event_thread = ParamEditorEventThread(self, self.event_queue,
self.event_queue_lock)
self.event_thread.start()
self.last_unload_check_time = time.time()
self.unload_check_interval = 0.1 # seconds
self.time_to_quit = False
self.mavlink_message_queue = multiproc.Queue()
self.mavlink_message_queue_handler = threading.Thread(
target=self.mavlink_message_queue_handler)
self.mavlink_message_queue_handler.start()
def __init__(self, mpstate):
self.num_wps_expected = 0 #helps me to know if all my waypoints I'm expecting have arrived
self.wps_received = {}
self.event_queue = multiproc.Queue()
self.event_queue_lock = multiproc.Lock()
self.gui_event_queue = multiproc.Queue()
self.gui_event_queue_lock = multiproc.Lock()
self.close_window = multiproc.Semaphore()
self.close_window.acquire()
self.child = multiproc.Process(target=self.child_task,args=(self.event_queue,self.event_queue_lock,self.gui_event_queue,self.gui_event_queue_lock,self.close_window))
self.child.start()
self.event_thread = MissionEditorEventThread(self, self.event_queue, self.event_queue_lock)
self.event_thread.start()
self.mpstate = mpstate
self.mpstate.miss_editor = self
self.last_unload_check_time = time.time()
self.unload_check_interval = 0.1 # seconds
self.time_to_quit = False
self.mavlink_message_queue = multiproc.Queue()
self.mavlink_message_queue_handler = threading.Thread(target=self.mavlink_message_queue_handler)
self.mavlink_message_queue_handler.start()
if platform.system() == "Windows":
mm = mmap.mmap(filehandle.fileno(), data_len, None, mmap.ACCESS_READ)
else:
mm = mmap.mmap(filehandle.fileno(), data_len, mmap.MAP_PRIVATE, mmap.PROT_READ)
# set the seek pointer
offset = dict['_offset']
mm.seek(offset)
# update attributes
self.__dict__.update(dict)
# restore the mmap
self._mm = mm
mutex = multiproc.Lock()
class MPChildTask(object):
'''Manage a MAVProxy child task
MAVProxy child tasks typically require access to the dataflash
or telemetry logs. For processes started using the `spawn`
start method this requires the arguments to the child process
to be pickleable, which is not the case for file handles and
memory mapped files.
This class provides two functions `wrap` and `unwrap` that are
called before and after the parent spawns the child process,
and in the child process itself before the public child task
is called. Custom pickle functions and class wrappers / unwrappers
should be placed in these two functions.
