def configure_event_loop(self): # pragma: no cover
logger.info("Configuring async runtime")
if USE_QUAMASH and not self.cli_config.headless:
logger.info("Using Quamash for async support.")
loop = QEventLoop(self.qt_app)
asyncio.set_event_loop(loop)
else:
logger.info("Using asyncio for async support.")
loop = asyncio.get_event_loop()
signal_set = {
"win32": lambda: (), # windows has no signals, but will raise exceptions
}.get(sys.platform, lambda: (signal.SIGHUP, signal.SIGTERM, signal.SIGINT))()
for s in signal_set:
logger.info("Installing shutdown signal handler for signal {s}")
loop.add_signal_handler(s, lambda s=s: loop.create_task(self.shutdown(loop, s)))
logger.info("Setting custom exception handler on async loop")
loop.set_exception_handler(self.handle_exception)
return loop
message_text = self.message_input.text()
self.message_input.clear()
self.protocol.send_data(message_text)
def append_text(self, content: str):
self.message_box.appendPlainText(content)
def buid_protocol(self):
self.protocol = ClientProtocol(self)
return self.protocol
async def start(self):
self.show()
event_loop = asyncio.get_running_loop()
coroutine = event_loop.create_connection(self.buid_protocol,
"127.0.0.1", 8000)
await asyncio.wait_for(coroutine, 1000)
app = QtWidgets.QApplication()
loop = QEventLoop(app)
asyncio.set_event_loop(loop)
window = MainWindow()
window.show()
loop.create_task(window.start())
loop.run_forever()
if __name__ == "__main__":
# asyncio debugging
# https://docs.python.org/3.6/library/asyncio-dev.html
# https://docs.python.org/3/using/cmdline.html#environment-variables
os.environ['PYTHONASYNCIODEBUG'] = "1"
os.environ['DEBUG'] = "1"
warnings.warn("always", ResourceWarning)
basename = os.path.splitext(os.path.basename(__file__))[0]
# global app
app = QApplication(sys.argv)
eventloop = QEventLoop(app)
asyncio.set_event_loop(eventloop)
eventloop.set_debug(True)
# executor = concurrent.futures.ThreadPoolExecutor(5)
# eventloop.set_default_executor(executor)
setup_logging()
window = MainWindow()
window.show()
with eventloop:
eventloop.create_task(new_browsertab(9232, eventloop))
sys.exit(eventloop.run_forever())
pass
pass
message_text = self.message_input.text()
self.message_input.clear()
self.protocol.send_data(message_text)
def append_text(self, content: str):
self.message_box.appendPlainText(content)
def build_protocol(self):
self.protocol = ClientProtocol(self)
return self.protocol
async def start(self):
self.show()
event_loop = asyncio.get_running_loop()
coroutine = event_loop.create_connection(self.build_protocol,
"127.0.0.1", 8888)
await asyncio.wait_for(coroutine, 1000)
app = QApplication() # создаем приложение
loop = QEventLoop(app)
asyncio.set_event_loop(loop)
window = MainWindow() # создаем окно
loop.create_task(window.start()) # - запустили подключение;
loop.run_forever()
class WavemeterRemote:
"""
Simple remote control for a :class:`WavemeterServer`, providing controls to start and stop the measurement,
calibrate, control autocalibration and displaying the timestamp of the latest successful calibration as well as
the autocalibration countdown.
:param host: the address at which the :class:`WavemeterServer` RPC server and Publisher are running
:param rpc_target: name of the RPC target
:param rpc_port: port of the RPC server
:param notifier_port: port of the publisher (notifier "status", containing the calibration timestamp and countdown)
:param title: the window title (generated from the RPC target name by default)
:param window_x: initial x position of the window in pixels
:param window_y: initial y position of the window in pixels
:param cal_channel: startup entry for the calibration channel
:param cal_wl: startup entry for the calibration wavelength (in nm)
:param cal_threshold: startup entry for the autocalibration threshold (in nm)
:param cal_interval: startup entry for the autocalibration interval (in s)
:param cal_retry_interval: startup entry for the autocalibration retry interval (in s)
:param start_autocal: set to start autocalibration on startup
"""
def __init__(self,
host: str = "::1",
rpc_target: str = "wavemeter_server",
rpc_port: int = 3280,
notifier_port: int = 3281,
title: str = None,
window_x: int = 0,
window_y: int = 0,
cal_channel: int = 1,
cal_wl: float = 633.,
cal_threshold: float = 0.00005,
cal_interval: int = 600,
cal_retry_interval: int = 10,
start_autocal: bool = False):
self._app = QApplication(sys.argv)
self._loop = QEventLoop(self._app)
asyncio.set_event_loop(self._loop)
self.wm_status_dict = {
"autocal_countdown": 0,
"calibration_timestamp": -1
}
self._subscriber = Subscriber("status", self._subscriber_init_cb,
self._subscriber_mod_cb)
logger.info(
"Connecting to publisher at {}:{}, notifier name: status".format(
host, notifier_port))
self._loop.run_until_complete(
self._subscriber.connect(host, notifier_port))
logger.info(
"Connecting to RPC server at {}:{}, target name: {}".format(
host, rpc_port, rpc_target))
self._rpc_client = BestEffortClient(host, rpc_port, rpc_target)
self._loop.create_task(self.keepalive_loop())
self.title = title if title is not None else "Wavemeter remote control ({} at {})".format(
rpc_target, host)
self._ui_input_elements = dict(
) # stores all input elements, used on function calls to retrieve their values
self._build_ui(window_x, window_y, cal_channel, cal_wl, cal_threshold,
cal_interval, cal_retry_interval)
if start_autocal and self._rpc_client is not None:
self._rpc_client.start_autocalibration(cal_channel, cal_wl,
cal_threshold, cal_interval,
cal_retry_interval)
def _build_ui(self, window_x, window_y, cal_channel, cal_wl, cal_threshold,
cal_interval, cal_retry_interval):
self.window = QWidget()
self.window.setWindowTitle(self.title)
self.window.move(window_x, window_y)
self.v_layout = QVBoxLayout()
self.window.setLayout(self.v_layout)
indicator_font = QFont()
indicator_font.setPointSize(18)
self.calibration_timestamp_display = QLabel()
self.calibration_timestamp_display.setFont(indicator_font)
self.calibration_countdown_display = QLabel()
self.calibration_countdown_display.setFont(indicator_font)
startstop_gb = QGroupBox("Measurement")
startstop_gb_layout = QHBoxLayout()
startstop_gb.setLayout(startstop_gb_layout)
start_button = QPushButton("&Start measurement")
def start():
if self._rpc_client is not None:
logger.info("sending RPC start_measurement()")
self._rpc_client.start_measurement()
start_button.clicked.connect(start)
startstop_gb_layout.addWidget(start_button)
stop_button = QPushButton("S&top measurement")
def stop():
if self._rpc_client is not None:
logger.info("sending RPC stop_measurement()")
self._rpc_client.stop_measurement()
stop_button.clicked.connect(stop)
startstop_gb_layout.addWidget(stop_button)
self.v_layout.addWidget(startstop_gb)
cal_gb = QGroupBox("Calibration")
cal_gb_outer_layout = QVBoxLayout()
cal_gb_outer_layout.addWidget(self.calibration_timestamp_display)
cal_gb_outer_layout.addWidget(self.calibration_countdown_display)
cal_gb_layout = QHBoxLayout()
cal_gb_outer_layout.addLayout(cal_gb_layout)
cal_gb.setLayout(cal_gb_outer_layout)
calibrate_gb = QGroupBox("Calibrate")
calibrate_gb_layout = QFormLayout()
calibrate_gb.setLayout(calibrate_gb_layout)
calibrate_button = QPushButton("&Calibrate")
def calibrate():
ch = int(self._ui_input_elements["cal_channel"].value())
wl = self._ui_input_elements["cal_wl"].value()
if self._rpc_client is not None:
logger.info(
"sending RPC calibrate(channel={}, wavelength={})".format(
ch, wl))
self._rpc_client.calibrate(ch, wl)
calibrate_button.clicked.connect(calibrate)
calibrate_gb_layout.addRow("", calibrate_button)
self._ui_input_elements.update({"cal_channel": QDoubleSpinBox()})
self._ui_input_elements["cal_channel"].setRange(1, 100)
self._ui_input_elements["cal_channel"].setSingleStep(1)
self._ui_input_elements["cal_channel"].setDecimals(0)
self._ui_input_elements["cal_channel"].setValue(cal_channel)
calibrate_gb_layout.addRow("Channel",
self._ui_input_elements["cal_channel"])
self._ui_input_elements.update({"cal_wl": QDoubleSpinBox()})
self._ui_input_elements["cal_wl"].setRange(1., 10000.)
self._ui_input_elements["cal_wl"].setSingleStep(1e-10)
self._ui_input_elements["cal_wl"].setDecimals(10)
self._ui_input_elements["cal_wl"].setSuffix(" nm")
self._ui_input_elements["cal_wl"].setValue(cal_wl)
calibrate_gb_layout.addRow("Wavelength",
self._ui_input_elements["cal_wl"])
cal_gb_layout.addWidget(calibrate_gb)
autocalibration_gb = QGroupBox("Autocalibration")
autocalibration_gb_layout = QFormLayout()
autocalibration_gb.setLayout(autocalibration_gb_layout)
start_autocalibration_button = QPushButton("Start &autocalibration")
def start_autocalibration():
ch = int(self._ui_input_elements["autocal_channel"].value())
wl = self._ui_input_elements["autocal_wl"].value()
thr = self._ui_input_elements["autocal_threshold"].value()
interval = int(self._ui_input_elements["autocal_interval"].value())
retry_interval = int(
self._ui_input_elements["autocal_retry_interval"].value())
if self._rpc_client is not None:
logger.info(
"sending RPC start_autocalibration(channel={}, wavelength={}, threshold={}, "
"interval={}, retry_interval={})".format(
ch, wl, thr, interval, retry_interval))
self._rpc_client.start_autocalibration(ch, wl, thr, interval,
retry_interval)
start_autocalibration_button.clicked.connect(start_autocalibration)
autocalibration_gb_layout.addRow("", start_autocalibration_button)
self._ui_input_elements.update({"autocal_channel": QDoubleSpinBox()})
self._ui_input_elements["autocal_channel"].setRange(1, 100)
self._ui_input_elements["autocal_channel"].setSingleStep(1)
self._ui_input_elements["autocal_channel"].setDecimals(0)
self._ui_input_elements["autocal_channel"].setValue(cal_channel)
autocalibration_gb_layout.addRow(
"Channel", self._ui_input_elements["autocal_channel"])
self._ui_input_elements.update({"autocal_wl": QDoubleSpinBox()})
self._ui_input_elements["autocal_wl"].setRange(1., 10000.)
self._ui_input_elements["autocal_wl"].setSingleStep(1e-10)
self._ui_input_elements["autocal_wl"].setDecimals(10)
self._ui_input_elements["autocal_wl"].setSuffix(" nm")
self._ui_input_elements["autocal_wl"].setValue(cal_wl)
autocalibration_gb_layout.addRow("Wavelength",
self._ui_input_elements["autocal_wl"])
self._ui_input_elements.update({"autocal_threshold": QDoubleSpinBox()})
self._ui_input_elements["autocal_threshold"].setRange(1e-10, 10000.)
self._ui_input_elements["autocal_threshold"].setSingleStep(1e-10)
self._ui_input_elements["autocal_threshold"].setDecimals(10)
self._ui_input_elements["autocal_threshold"].setSuffix(" nm")
self._ui_input_elements["autocal_threshold"].setValue(cal_threshold)
autocalibration_gb_layout.addRow(
"Threshold", self._ui_input_elements["autocal_threshold"])
self._ui_input_elements.update({"autocal_interval": QDoubleSpinBox()})
self._ui_input_elements["autocal_interval"].setRange(1, 100000)
self._ui_input_elements["autocal_interval"].setSingleStep(1)
self._ui_input_elements["autocal_interval"].setDecimals(0)
self._ui_input_elements["autocal_interval"].setSuffix(" s")
self._ui_input_elements["autocal_interval"].setValue(cal_interval)
autocalibration_gb_layout.addRow(
"Interval", self._ui_input_elements["autocal_interval"])
self._ui_input_elements.update(
{"autocal_retry_interval": QDoubleSpinBox()})
self._ui_input_elements["autocal_retry_interval"].setRange(1, 100000)
self._ui_input_elements["autocal_retry_interval"].setSingleStep(1)
self._ui_input_elements["autocal_retry_interval"].setDecimals(0)
self._ui_input_elements["autocal_retry_interval"].setSuffix(" s")
self._ui_input_elements["autocal_retry_interval"].setValue(
cal_retry_interval)
autocalibration_gb_layout.addRow(
"Retry interval",
self._ui_input_elements["autocal_retry_interval"])
stop_autocalibration_button = QPushButton("St&op autocalibration")
def stop_autocalibration():
if self._rpc_client is not None:
logger.info("sending RPC stop_autocalibration()")
self._rpc_client.stop_autocalibration()
stop_autocalibration_button.clicked.connect(stop_autocalibration)
autocalibration_gb_layout.addRow("", stop_autocalibration_button)
cal_gb_layout.addWidget(autocalibration_gb)
self.v_layout.addWidget(cal_gb)
exposure_gb = QGroupBox("Exposure")
exposure_gb_layout = QHBoxLayout()
exposure_gb.setLayout(exposure_gb_layout)
control_form = QFormLayout()
self._ui_input_elements.update({"exp_channel": QDoubleSpinBox()})
self._ui_input_elements["exp_channel"].setRange(1, 100)
self._ui_input_elements["exp_channel"].setSingleStep(1)
self._ui_input_elements["exp_channel"].setDecimals(0)
self._ui_input_elements["exp_channel"].setValue(1)
control_form.addRow("Channel", self._ui_input_elements["exp_channel"])
self._ui_input_elements.update({"exp_time1": QDoubleSpinBox()})
self._ui_input_elements["exp_time1"].setRange(1, 2000)
self._ui_input_elements["exp_time1"].setSingleStep(1)
self._ui_input_elements["exp_time1"].setDecimals(0)
self._ui_input_elements["exp_time1"].setSuffix(" ms")
self._ui_input_elements["exp_time1"].setValue(1)
control_form.addRow("Time 1", self._ui_input_elements["exp_time1"])
self._ui_input_elements.update({"exp_time2": QDoubleSpinBox()})
self._ui_input_elements["exp_time2"].setRange(0, 2000)
self._ui_input_elements["exp_time2"].setSingleStep(1)
self._ui_input_elements["exp_time2"].setDecimals(0)
self._ui_input_elements["exp_time2"].setSuffix(" ms")
self._ui_input_elements["exp_time2"].setValue(1)
control_form.addRow("Time 2", self._ui_input_elements["exp_time2"])
self._ui_input_elements.update({"exp_auto": QCheckBox()})
control_form.addRow("Auto adjust", self._ui_input_elements["exp_auto"])
exposure_gb_layout.addLayout(control_form)
exposure_button_layout = QVBoxLayout()
exposure_get_button = QPushButton("&Get")
def exposure_get():
channel = int(self._ui_input_elements["exp_channel"].value())
if self._rpc_client is not None:
logger.info(
"sending RPC get_exposure_time({}, 1)".format(channel))
time1 = self._rpc_client.get_exposure_time(channel, 1)
logger.info(
"sending RPC get_exposure_time({}, 2)".format(channel))
time2 = self._rpc_client.get_exposure_time(channel, 2)
logger.info(
"sending RPC get_exposure_auto_adjust({})".format(channel))
auto = self._rpc_client.get_exposure_auto_adjust(channel)
self._ui_input_elements["exp_time1"].setValue(time1)
self._ui_input_elements["exp_time2"].setValue(time2)
self._ui_input_elements["exp_auto"].setChecked(auto)
exposure_get_button.clicked.connect(exposure_get)
exposure_button_layout.addWidget(exposure_get_button)
exposure_set_button = QPushButton("S&et")
def exposure_set():
channel = int(self._ui_input_elements["exp_channel"].value())
time1 = int(self._ui_input_elements["exp_time1"].value())
time2 = int(self._ui_input_elements["exp_time2"].value())
auto = bool(self._ui_input_elements["exp_auto"].isChecked())
if self._rpc_client is not None:
logger.info("sending RPC set_exposure_time({}, 1, {})".format(
channel, time1))
self._rpc_client.set_exposure_time(channel, 1, time1)
logger.info("sending RPC set_exposure_time({}, 2, {})".format(
channel, time2))
self._rpc_client.set_exposure_time(channel, 2, time2)
logger.info(
"sending RPC set_exposure_auto_adjust({}, {})".format(
channel, auto))
self._rpc_client.set_exposure_auto_adjust(channel, auto)
exposure_set_button.clicked.connect(exposure_set)
exposure_button_layout.addWidget(exposure_set_button)
exposure_gb_layout.addLayout(exposure_button_layout)
self.v_layout.addWidget(exposure_gb)
def _update_cal_timestamp(self):
self.calibration_timestamp_display.setText(
"Last successful"
" calibration:\n{}".format(
time.asctime(
time.localtime(
self.wm_status_dict["calibration_timestamp"]))))
def _update_cal_countdown(self):
self.calibration_countdown_display.setText(
"Next autocalibration attempt in {:.0f} s".format(
self.wm_status_dict["autocal_countdown"]))
def _subscriber_init_cb(self, data):
self.wm_status_dict = data
self._update_cal_timestamp()
self._update_cal_countdown()
return data
def _subscriber_mod_cb(self, mod):
try:
if mod["key"] == "calibration_timestamp":
self._update_cal_timestamp()
elif mod["key"] == "autocal_countdown":
self._update_cal_countdown()
except KeyError:
pass
keepalive_interval = 3600. # ping RPC server after this interval to keep the connection alive
async def keepalive_loop(self):
"""Keep the RPC connection alive"""
while True:
logger.info("Pinging the RPC server to keep the connection alive")
self._rpc_client.ping()
await asyncio.sleep(self.keepalive_interval)
def run(self):
self.window.show()
self._loop.run_forever()
if self._subscriber is not None:
self._loop.run_until_complete(self._subscriber.close())
if self._rpc_client is not None:
self._rpc_client.close_rpc()
