forked from M-Labs/artiq
master: handle dpdb in master process
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0aa450ad5d
commit
9cd89a0c50
@ -2,6 +2,8 @@ from collections import OrderedDict
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import importlib
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from artiq.language.context import *
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from artiq.management import pyon
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from artiq.management.sync_struct import Notifier
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def create_device(desc, mvs):
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@ -10,35 +12,46 @@ def create_device(desc, mvs):
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return device_class(mvs, **desc["parameters"])
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class DeviceParamDB:
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def __init__(self, devices, parameters):
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self.devices = devices
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self.parameters = parameters
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class DeviceParamSupplier:
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"""Supplies devices and parameters to AutoContext objects.
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"""
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def __init__(self, req_device, req_parameter):
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self.req_device = req_device
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self.req_parameter = req_parameter
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self.active_devices = OrderedDict()
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def get_missing_value(self, name, kind, requester):
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if isinstance(kind, Device):
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if name in self.active_devices:
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return self.active_devices[name]
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elif name in self.devices:
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desc = self.devices[name]
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while isinstance(desc, str):
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# alias
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desc = self.devices[desc]
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else:
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try:
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desc = self.req_device(name)
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except KeyError:
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raise KeyError(
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"Unknown device '{}' of type '{}' requested by {}"
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.format(name, kind.type_hint, requester))
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try:
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while isinstance(desc, str):
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# alias
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desc = self.req_device(desc)
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except KeyError:
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raise KeyError(
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"Unknown alias '{}' for device '{}' of type '{}'"
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" requested by {}"
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.format(desc, name, kind.type_hint, requester))
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dev = create_device(desc, self)
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self.active_devices[name] = dev
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return dev
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else:
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raise KeyError("Unknown device '{}' of type '{}'"
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" requested by {}"
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.format(name, kind.type_hint, requester))
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elif isinstance(kind, Parameter):
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if name in self.parameters:
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return self.parameters[name]
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elif kind.default is not NoDefault:
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return kind.default
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else:
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raise KeyError("Unknown parameter: " + name)
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try:
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return self.req_parameter(name)
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except KeyError:
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if kind.default is not NoDefault:
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return kind.default
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else:
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raise KeyError("Unknown parameter: " + name)
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else:
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raise NotImplementedError
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@ -47,3 +60,39 @@ class DeviceParamDB:
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if hasattr(dev, "close"):
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dev.close()
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self.active_devices = OrderedDict()
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class DeviceParamDB:
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def __init__(self, ddb_file, pdb_file):
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self.ddb_file = ddb_file
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self.pdb_file = pdb_file
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self.ddb = Notifier(pyon.load_file(self.ddb_file))
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self.pdb = Notifier(pyon.load_file(self.pdb_file))
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def save_ddb(self):
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pyon.store_file(self.ddb_file, self.ddb)
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def save_pdb(self):
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pyon.store_file(self.pdb_file, self.pdb)
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def req_device(self, name):
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return self.ddb.backing_struct[name]
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def set_device(self, name, description):
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self.ddb[name] = description
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self.save_ddb()
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def del_device(self, name):
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del self.ddb[name]
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self.save_ddb()
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def req_parameter(self, name):
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return self.pdb.backing_struct[name]
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def set_parameter(self, name, value):
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self.pdb[name] = value
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self.save_pdb()
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def del_parameter(self, name):
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del self.pdb[name]
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self.save_pdb()
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@ -6,8 +6,8 @@ from artiq.management.worker import Worker
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class Scheduler:
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def __init__(self, *args, **kwargs):
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self.worker = Worker(*args, **kwargs)
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def __init__(self, worker_handlers):
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self.worker = Worker(worker_handlers)
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self.next_rid = 0
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self.queue = Notifier([])
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self.queue_count = asyncio.Semaphore(0)
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@ -56,6 +56,16 @@ class Scheduler:
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def cancel_periodic(self, prid):
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del self.periodic[prid]
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@asyncio.coroutine
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def _run(self, rid, run_params, timeout):
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try:
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yield from self.worker.run(run_params, timeout)
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except Exception as e:
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print("RID {} failed:".format(rid))
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print(e)
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else:
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print("RID {} completed successfully".format(rid))
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@asyncio.coroutine
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def _run_periodic(self):
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while True:
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@ -80,8 +90,7 @@ class Scheduler:
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rid = self.new_rid()
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self.queue.insert(0, (rid, run_params, timeout))
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result = yield from self.worker.run(run_params, timeout)
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print(prid, rid, result)
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yield from self._run(rid, run_params, timeout)
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del self.queue[0]
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@asyncio.coroutine
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@ -101,6 +110,5 @@ class Scheduler:
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yield from self._run_periodic()
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if ev_queue in done:
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rid, run_params, timeout = self.queue.backing_struct[0]
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result = yield from self.worker.run(run_params, timeout)
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print(rid, result)
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yield from self._run(rid, run_params, timeout)
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del self.queue[0]
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@ -10,11 +10,14 @@ class WorkerFailed(Exception):
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pass
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class RunFailed(Exception):
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pass
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class Worker:
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def __init__(self, ddb, pdb,
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def __init__(self, handlers,
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send_timeout=0.5, start_reply_timeout=1.0, term_timeout=1.0):
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self.ddb = ddb
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self.pdb = pdb
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self.handlers = handlers
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self.send_timeout = send_timeout
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self.start_reply_timeout = start_reply_timeout
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self.term_timeout = term_timeout
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@ -23,7 +26,6 @@ class Worker:
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def create_process(self):
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self.process = yield from asyncio.create_subprocess_exec(
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sys.executable, "-m", "artiq.management.worker_impl",
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self.ddb, self.pdb,
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stdout=subprocess.PIPE, stdin=subprocess.PIPE)
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@asyncio.coroutine
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@ -62,8 +64,22 @@ class Worker:
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obj = yield from self._recv(self.start_reply_timeout)
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if obj != "ack":
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raise WorkerFailed("Incorrect acknowledgement")
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result = yield from self._recv(result_timeout)
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return result
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while True:
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obj = yield from self._recv(result_timeout)
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action = obj["action"]
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if action == "report_completed":
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if obj["status"] != "ok":
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raise RunFailed(obj["message"])
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else:
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return
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else:
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del obj["action"]
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try:
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data = self.handlers[action](**obj)
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reply = {"status": "ok", "data": data}
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except:
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reply = {"status": "failed"}
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yield from self._send(reply, self.send_timeout)
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@asyncio.coroutine
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def end_process(self):
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@ -1,13 +1,14 @@
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import sys
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from inspect import isclass
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import traceback
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from artiq.management import pyon
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from artiq.management.file_import import file_import
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from artiq.language.context import AutoContext
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from artiq.management.dpdb import DeviceParamDB
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from artiq.management.dpdb import DeviceParamSupplier
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def run(dpdb, file, unit, function):
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def run(dps, file, unit, function):
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module = file_import(file)
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if unit is None:
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units = [v for k, v in module.__dict__.items()
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@ -20,11 +21,16 @@ def run(dpdb, file, unit, function):
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unit = units[0]
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else:
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unit = getattr(module, unit)
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unit_inst = unit(dpdb)
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unit_inst = unit(dps)
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f = getattr(unit_inst, function)
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f()
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def get_object():
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line = sys.__stdin__.readline()
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return pyon.decode(line)
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def put_object(obj):
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ds = pyon.encode(obj)
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sys.__stdout__.write(ds)
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@ -32,24 +38,45 @@ def put_object(obj):
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sys.__stdout__.flush()
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def req_device(name):
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put_object({"action": "req_device", "name": name})
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obj = get_object()
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if obj["status"] == "ok":
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return obj["data"]
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else:
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raise KeyError
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def req_parameter(name):
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put_object({"action": "req_parameter", "name": name})
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obj = get_object()
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if obj["status"] == "ok":
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return obj["data"]
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else:
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raise KeyError
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def main():
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sys.stdout = sys.stderr
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devices = pyon.load_file(sys.argv[1])
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parameters = pyon.load_file(sys.argv[2])
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dpdb = DeviceParamDB(devices, parameters)
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dps = DeviceParamSupplier(req_device, req_parameter)
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while True:
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line = sys.__stdin__.readline()
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obj = pyon.decode(line)
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obj = get_object()
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put_object("ack")
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try:
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run(dpdb, **obj)
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except Exception as e:
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put_object({"status": "failed", "message": str(e)})
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else:
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put_object({"status": "ok"})
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try:
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run(dps, **obj)
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except Exception:
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put_object({"action": "report_completed",
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"status": "failed",
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"message": traceback.format_exc()})
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else:
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put_object({"action": "report_completed",
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"status": "ok"})
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finally:
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dps.close()
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if __name__ == "__main__":
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main()
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@ -2,9 +2,11 @@
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import asyncio
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import argparse
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import atexit
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from artiq.management.pc_rpc import Server
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from artiq.management.sync_struct import Publisher
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from artiq.management.dpdb import DeviceParamDB
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from artiq.management.scheduler import Scheduler
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@ -24,31 +26,32 @@ def _get_args():
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def main():
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args = _get_args()
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dpdb = DeviceParamDB("ddb.pyon", "pdb.pyon")
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loop = asyncio.get_event_loop()
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try:
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scheduler = Scheduler("ddb.pyon", "pdb.pyon")
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loop.run_until_complete(scheduler.start())
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try:
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schedule_control = Server(scheduler, "schedule_control")
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loop.run_until_complete(schedule_control.start(
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args.bind, args.port_schedule_control))
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try:
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schedule_notify = Publisher({
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"queue": scheduler.queue,
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"periodic": scheduler.periodic
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})
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loop.run_until_complete(schedule_notify.start(
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args.bind, args.port_schedule_notify))
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try:
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loop.run_forever()
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finally:
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loop.run_until_complete(schedule_notify.stop())
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finally:
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loop.run_until_complete(schedule_control.stop())
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finally:
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loop.run_until_complete(scheduler.stop())
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finally:
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loop.close()
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atexit.register(lambda: loop.close())
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scheduler = Scheduler({
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"req_device": dpdb.req_device,
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"req_parameter": dpdb.req_parameter
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})
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loop.run_until_complete(scheduler.start())
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atexit.register(lambda: loop.run_until_complete(scheduler.stop()))
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schedule_control = Server(scheduler, "schedule_control")
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loop.run_until_complete(schedule_control.start(
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args.bind, args.port_schedule_control))
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atexit.register(lambda: loop.run_until_complete(schedule_control.stop()))
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schedule_notify = Publisher({
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"queue": scheduler.queue,
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"periodic": scheduler.periodic
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})
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loop.run_until_complete(schedule_notify.start(
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args.bind, args.port_schedule_notify))
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atexit.register(lambda: loop.run_until_complete(schedule_notify.stop()))
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loop.run_forever()
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if __name__ == "__main__":
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main()
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