def prepare_capture(self):
self._logger.info("Preparing capture.")
self._update_status(step='capture')
self._pool_executor = ThreadPoolExecutor(
max_workers=multiprocessing.cpu_count())
if any(dev.target_page is None for dev in self.devices):
raise util.DeviceException(
"Target page for at least one of the devicescould not be"
"determined, please run 'spread configure' to configure your"
"your devices.")
with ThreadPoolExecutor(len(self.devices)) as executor:
futures = []
self._logger.debug("Preparing capture in devices")
for dev in self.devices:
futures.append(executor.submit(dev.prepare_capture, self.path))
util.check_futures_exceptions(futures)
flip_target = ('flip_target_pages' in self.config['device'].keys()
and self.config['device']['flip_target_pages'].get())
if flip_target:
(self.devices[0].target_page,
self.devices[1].target_page) = (self.devices[1].target_page,
self.devices[0].target_page)
self._run_hook('prepare_capture', self.devices, self.path)
self._run_hook('start_trigger_loop', self.capture)
self._update_status(prepared=True)
def prepare_capture(self):
""" Prepare capture on devices and initialize trigger plugins. """
self._logger.info("Preparing capture.")
self._update_status(step='capture')
if any(dev.target_page is None for dev in self.devices):
raise util.DeviceException(
"Target page for at least one of the devices could not be"
"determined, please run 'spread configure' to configure your"
"devices.")
with concfut.ThreadPoolExecutor(len(self.devices)) as executor:
futures = []
self._logger.debug("Preparing capture in devices")
for dev in self.devices:
futures.append(executor.submit(dev.prepare_capture))
util.check_futures_exceptions(futures)
flip_target = ('flip_target_pages' in self.config['device'].keys() and
self.config['device']['flip_target_pages'].get())
if flip_target:
(self.devices[0].target_page,
self.devices[1].target_page) = (self.devices[1].target_page,
self.devices[0].target_page)
self._run_hook('prepare_capture', self.devices)
self._run_hook('start_trigger_loop', self.capture)
self._update_status(prepared=True)
def devices(self):
if 'driver' not in self.config.keys():
raise util.DeviceException(
"No driver has been configured\n"
"Please run `spread configure` to select a driver.")
if self._devices is None:
self._devices = plugin.get_devices(self.config, force_reload=True)
if any(not dev.connected() for dev in self._devices):
self._logger.warning(
"At least one of the devices has been disconnected."
"Please make sure it has been re-enabled before taking another"
"action.")
self._devices = None
if not self._devices:
raise util.DeviceException("Could not find any compatible "
"devices!")
return self._devices