frontend: use atexit_register_coroutine in other tools

artiq/frontend/artiq_ctlmgr.py

@@ -15,7 +15,7 @@ from artiq.protocols.pc_rpc import AsyncioClient, Server
 from artiq.protocols.logging import (LogForwarder,
                                      parse_log_message, log_with_name,
                                      SourceFilter)
-from artiq.tools import TaskObject, Condition
+from artiq.tools import TaskObject, Condition, atexit_register_coroutine
 
 
 logger = logging.getLogger(__name__)
@@ -311,19 +311,19 @@ def main():
         asyncio.set_event_loop(loop)
     else:
         loop = asyncio.get_event_loop()
-    atexit.register(lambda: loop.close())
+    atexit.register(loop.close)
 
     logfwd = LogForwarder(args.server, args.port_logging,
                           args.retry_master)
     logfwd.addFilter(source_adder)
     root_logger.addHandler(logfwd)
     logfwd.start()
-    atexit.register(lambda: loop.run_until_complete(logfwd.stop()))
+    atexit_register_coroutine(logfwd.stop)
 
     ctlmgr = ControllerManager(args.server, args.port_notify,
                                args.retry_master)
     ctlmgr.start()
-    atexit.register(lambda: loop.run_until_complete(ctlmgr.stop()))
+    atexit_register_coroutine(ctlmgr.stop)
 
     class CtlMgrRPC:
         retry_now = ctlmgr.retry_now
@@ -331,7 +331,7 @@ def main():
     rpc_target = CtlMgrRPC()
     rpc_server = Server({"ctlmgr": rpc_target}, builtin_terminate=True)
     loop.run_until_complete(rpc_server.start(args.bind, args.bind_port))
-    atexit.register(lambda: loop.run_until_complete(rpc_server.stop()))
+    atexit_register_coroutine(rpc_server.stop)
 
     loop.run_until_complete(rpc_server.wait_terminate())
 

artiq/frontend/artiq_gui.py

@@ -10,7 +10,7 @@ import os
 from quamash import QEventLoop, QtGui, QtCore
 from pyqtgraph import dockarea
 
-from artiq.tools import verbosity_args, init_logger, artiq_dir
+from artiq.tools import *
 from artiq.protocols.pc_rpc import AsyncioClient
 from artiq.gui.models import ModelSubscriber
 from artiq.gui import state, explorer, moninj, datasets, schedule, log, console
@@ -52,12 +52,6 @@ class MainWindow(QtGui.QMainWindow):
         self.restoreGeometry(QtCore.QByteArray(state))
 
 
-def atexit_register_coroutine(coroutine, loop=None):
-    if loop is None:
-        loop = asyncio.get_event_loop()
-    atexit.register(lambda: loop.run_until_complete(coroutine()))
-
-
 def main():
     args = get_argparser().parse_args()
     init_logger(args)

artiq/frontend/artiq_influxdb.py

@@ -10,8 +10,7 @@ from functools import partial
 import numpy as np
 import aiohttp
 
-from artiq.tools import verbosity_args, init_logger
-from artiq.tools import TaskObject
+from artiq.tools import *
 from artiq.protocols.sync_struct import Subscriber
 from artiq.protocols.pc_rpc import Server
 from artiq.protocols import pyon
@@ -239,23 +238,23 @@ def main():
     init_logger(args)
 
     loop = asyncio.get_event_loop()
-    atexit.register(lambda: loop.close())
+    atexit.register(loop.close)
 
     writer = DBWriter(args.baseurl_db,
                       args.user_db, args.password_db,
                       args.database, args.table)
     writer.start()
-    atexit.register(lambda: loop.run_until_complete(writer.stop()))
+    atexit_register_coroutine(writer.stop)
 
     filter = Filter(args.pattern_file)
     rpc_server = Server({"influxdb_filter": filter}, builtin_terminate=True)
     loop.run_until_complete(rpc_server.start(args.bind, args.bind_port))
-    atexit.register(lambda: loop.run_until_complete(rpc_server.stop()))
+    atexit_register_coroutine(rpc_server.stop)
 
     reader = MasterReader(args.server_master, args.port_master,
                           args.retry_master, filter._filter, writer)
     reader.start()
-    atexit.register(lambda: loop.run_until_complete(reader.stop()))
+    atexit_register_coroutine(reader.stop)
 
     loop.run_until_complete(rpc_server.wait_terminate())
 

artiq/frontend/artiq_master.py

@@ -5,6 +5,7 @@ import argparse
 import atexit
 import os
 
+from artiq.tools import atexit_register_coroutine
 from artiq.protocols.pc_rpc import Server as RPCServer
 from artiq.protocols.sync_struct import Publisher
 from artiq.protocols.logging import Server as LoggingServer
@@ -59,12 +60,12 @@ def main():
         asyncio.set_event_loop(loop)
     else:
         loop = asyncio.get_event_loop()
-    atexit.register(lambda: loop.close())
+    atexit.register(loop.close)
 
     device_db = DeviceDB(args.device_db)
     dataset_db = DatasetDB(args.dataset_db)
     dataset_db.start()
-    atexit.register(lambda: loop.run_until_complete(dataset_db.stop()))
+    atexit_register_coroutine(dataset_db.stop)
 
     if args.git:
         repo_backend = GitBackend(args.repository)
@@ -90,7 +91,7 @@ def main():
         "scheduler_get_status": scheduler.get_status
     })
     scheduler.start()
-    atexit.register(lambda: loop.run_until_complete(scheduler.stop()))
+    atexit_register_coroutine(scheduler.stop)
 
     server_control = RPCServer({
         "master_device_db": device_db,
@@ -100,7 +101,7 @@ def main():
     })
     loop.run_until_complete(server_control.start(
         args.bind, args.port_control))
-    atexit.register(lambda: loop.run_until_complete(server_control.stop()))
+    atexit_register_coroutine(server_control.stop)
 
     server_notify = Publisher({
         "schedule": scheduler.notifier,
@@ -111,12 +112,12 @@ def main():
     })
     loop.run_until_complete(server_notify.start(
         args.bind, args.port_notify))
-    atexit.register(lambda: loop.run_until_complete(server_notify.stop()))
+    atexit_register_coroutine(server_notify.stop)
 
     server_logging = LoggingServer()
     loop.run_until_complete(server_logging.start(
         args.bind, args.port_logging))
-    atexit.register(lambda: loop.run_until_complete(server_logging.stop()))
+    atexit_register_coroutine(server_logging.stop)
 
     loop.run_forever()
 

artiq/tools.py

@@ -7,6 +7,7 @@ import asyncio
 import time
 import collections
 import os
+import atexit
 
 import numpy as np
 
@@ -14,6 +15,12 @@ from artiq.language.environment import is_experiment
 from artiq.protocols import pyon
 
 
+__all__ = ["artiq_dir", "parse_arguments", "elide", "short_format", "file_import",
+           "get_experiment", "verbosity_args", "simple_network_args", "init_logger",
+           "atexit_register_coroutine", "exc_to_warning", "asyncio_wait_or_cancel",
+           "TaskObject", "Condition", "workaround_asyncio263"]
+
+
 logger = logging.getLogger(__name__)
 
 artiq_dir = os.path.join(os.path.abspath(os.path.dirname(__file__)))
@@ -120,6 +127,12 @@ def init_logger(args):
     logging.basicConfig(level=logging.WARNING + args.quiet*10 - args.verbose*10)
 
 
+def atexit_register_coroutine(coroutine, loop=None):
+    if loop is None:
+        loop = asyncio.get_event_loop()
+    atexit.register(lambda: loop.run_until_complete(coroutine()))
+
+
 async def exc_to_warning(coro):
     try:
         await coro