master, dashboard: support applet requests from experiments

artiq/dashboard/applets_ccb.py

@@ -0,0 +1,89 @@
+import logging
+
+from PyQt5 import QtCore, QtWidgets
+
+from artiq.gui import applets
+
+
+logger = logging.getLogger(__name__)
+
+
+class AppletsCCBDock(applets.AppletsDock):
+    def __init__(self, *args, **kwargs):
+        applets.AppletsDock.__init__(self, *args, **kwargs)
+
+        sep = QtWidgets.QAction(self.table)
+        sep.setSeparator(True)
+        self.table.addAction(sep)
+        self.listen_action = QtWidgets.QAction(
+            "Listen to client control broadcasts", self.table)
+        self.listen_action.setCheckable(True)
+        self.table.addAction(self.listen_action)
+
+    def locate_applet(self, name, group, create_groups):
+        if group is None:
+            group = []
+        elif isinstance(group, str):
+            group = [group]
+
+        parent = self.table.invisibleRootItem()
+        for g in group:
+            new_parent = None
+            for i in range(parent.childCount()):
+                child = parent.child(i)
+                if child.ty == "group" and child.text(1) == g:
+                    new_parent = child
+                    break
+            if new_parent is None:
+                if create_groups:
+                    new_parent = self.new_group(g, parent)
+                else:
+                    return None, None
+            parent = new_parent
+
+        applet = None
+        for i in range(parent.childCount()):
+            child = parent.child(i)
+            if child.ty == "applet" and child.text(1) == name:
+                applet = child
+                break
+        return parent, applet
+
+    def ccb_create_applet(self, name, command_or_code, group=None, is_code=False):
+        if not self.listen_action.isChecked():
+            return
+        parent, applet = self.locate_applet(name, group, True)
+        if applet is None:
+            applet = self.new(name=name, command=command_or_code, parent=parent)
+        else:
+            applet.setText(2, command_or_code)
+        applet.setCheckState(0, QtCore.Qt.Checked)
+
+    def ccb_disable_applet(self, name, group=None):
+        if not self.listen_action.isChecked():
+            return
+        parent, applet = self.locate_applet(name, group, False)
+        if applet is not None:
+            applet.setCheckState(0, QtCore.Qt.Unchecked)
+
+    def ccb_notify(self, message):
+        try:
+            service = message["service"]
+            args = message["args"]
+            kwargs = message["kwargs"]
+            if service == "create_applet":
+                self.ccb_create_applet(*args, **kwargs)
+            elif service == "disable_applet":
+                self.ccb_disable_applet(*args, **kwargs)
+        except:
+            logger.error("failed to process CCB", exc_info=True)
+
+    def save_state(self):
+        return {
+            "applets": applets.AppletsDock.save_state(self),
+            "listen": self.listen_action.isChecked()
+        }
+
+    def restore_state(self, state):
+        applets.AppletsDock.restore_state(self, state["applets"])
+        self.listen_action.setChecked(state["listen"])

artiq/examples/master/repository/flopping_f_simulation.py

@@ -29,6 +29,7 @@ class FloppingF(EnvExperiment):
             0.1, min=0, max=100, step=0.01))
 
         self.setattr_device("scheduler")
+        self.setattr_device("ccb")
 
     def run(self):
         l = len(self.frequency_scan)
@@ -41,6 +42,11 @@ class FloppingF(EnvExperiment):
         self.set_dataset("flopping_f_fit", np.full(l, np.nan),
                          broadcast=True, save=False)
 
+        self.ccb.issue("create_applet", "flopping_f",
+           "${artiq_applet}plot_xy "
+           "flopping_f_brightness --x flopping_f_frequency "
+           "--fit flopping_f_fit")
+
         for i, f in enumerate(self.frequency_scan):
             m_brightness = model(f, self.F0) + self.noise_amplitude*random.random()
             self.mutate_dataset("flopping_f_frequency", i, f)

artiq/frontend/artiq_dashboard.py

@@ -15,9 +15,9 @@ from artiq.tools import (atexit_register_coroutine, verbosity_args,
 from artiq.protocols.pc_rpc import AsyncioClient
 from artiq.protocols.broadcast import Receiver
 from artiq.gui.models import ModelSubscriber
-from artiq.gui import state, applets, log
+from artiq.gui import state, log
 from artiq.dashboard import (experiments, shortcuts, explorer,
-                             moninj, datasets, schedule)
+                             moninj, datasets, schedule, applets_ccb)
 
 
 def get_argparser():
@@ -119,10 +119,13 @@ def main():
         atexit_register_coroutine(subscriber.close)
         sub_clients[notifier_name] = subscriber
 
-    log_receiver = Receiver("log", [])
+    broadcast_clients = dict()
-    loop.run_until_complete(log_receiver.connect(
+    for target in "log", "ccb":
+        client = Receiver(target, [])
+        loop.run_until_complete(client.connect(
             args.server, args.port_broadcast))
-    atexit_register_coroutine(log_receiver.close)
+        atexit_register_coroutine(client.close)
+        broadcast_clients[target] = client
 
     # initialize main window
     main_window = MainWindow(args.server)
@@ -152,9 +155,10 @@ def main():
                                        rpc_clients["dataset_db"])
     smgr.register(d_datasets)
 
-    d_applets = applets.AppletsDock(main_window, sub_clients["datasets"])
+    d_applets = applets_ccb.AppletsCCBDock(main_window, sub_clients["datasets"])
     atexit_register_coroutine(d_applets.stop)
     smgr.register(d_applets)
+    broadcast_clients["ccb"].notify_cbs.append(d_applets.ccb_notify)
 
     d_ttl_dds = moninj.MonInj()
     loop.run_until_complete(d_ttl_dds.start(args.server, args.port_notify))
@@ -166,7 +170,7 @@ def main():
 
     logmgr = log.LogDockManager(main_window)
     smgr.register(logmgr)
-    log_receiver.notify_cbs.append(logmgr.append_message)
+    broadcast_clients["log"].notify_cbs.append(logmgr.append_message)
     widget_log_handler.callback = logmgr.append_message
 
     # lay out docks

artiq/frontend/artiq_master.py

@@ -69,6 +69,13 @@ def main():
 
     log_forwarder.callback = (lambda msg:
         server_broadcast.broadcast("log", msg))
+    def ccb_issue(service, *args, **kwargs):
+        msg = {
+            "service": service,
+            "args": args,
+            "kwargs": kwargs
+        }
+        server_broadcast.broadcast("ccb", msg)
 
     device_db = DeviceDB(args.device_db)
     dataset_db = DatasetDB(args.dataset_db)
@@ -96,7 +103,8 @@ def main():
         "scheduler_delete": scheduler.delete,
         "scheduler_request_termination": scheduler.request_termination,
         "scheduler_get_status": scheduler.get_status,
-        "scheduler_check_pause": scheduler.check_pause
+        "scheduler_check_pause": scheduler.check_pause,
+        "ccb_issue": ccb_issue,
     })
     experiment_db.scan_repository_async()
 

artiq/frontend/artiq_run.py

@@ -118,6 +118,12 @@ class DummyScheduler:
         pass
 
 
+class DummyCCB:
+    def issue(self, service, *args, **kwargs):
+        logger.info("CCB for service '%s' (args %s, kwargs %s)",
+                    service, args, kwargs)
+
+
 def get_argparser(with_file=True):
     parser = argparse.ArgumentParser(
         description="Local experiment running tool")
@@ -183,7 +189,8 @@ def run(with_file=False):
     init_logger(args)
 
     device_mgr = DeviceManager(DeviceDB(args.device_db),
-                               virtual_devices={"scheduler": DummyScheduler()})
+                               virtual_devices={"scheduler": DummyScheduler(),
+                                                "ccb": DummyCCB()})
     dataset_db = DatasetDB(args.dataset_db)
     dataset_mgr = DatasetManager(dataset_db)
 

artiq/master/worker_impl.py

@@ -106,6 +106,10 @@ class Scheduler:
         return self._check_pause(rid)
 
 
+class CCB:
+    issue = staticmethod(make_parent_action("ccb_issue"))
+
+
 def get_exp(file, class_name):
     module = file_import(file, prefix="artiq_worker_")
     if class_name is None:
@@ -189,7 +193,8 @@ def main():
     repository_path = None
 
     device_mgr = DeviceManager(ParentDeviceDB,
-                               virtual_devices={"scheduler": Scheduler()})
+                               virtual_devices={"scheduler": Scheduler(),
+                                                "ccb": CCB()})
     dataset_mgr = DatasetManager(ParentDatasetDB)
 
     import_cache.install_hook()