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60 lines
2.4 KiB
Python
60 lines
2.4 KiB
Python
2 years ago
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import multiprocessing as mp
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from multiprocessing.connection import Connection
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from communication.exception import SkError
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from communication.define import CmdType, KCommand, KReply
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from communication.model import DevModel
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from communication.worker.state import SkWorkerState, register_dev
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class SkWorkerProcess(mp.Process):
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connection: Connection
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def __init__(self, connection):
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mp.Process.__init__(self)
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self.name = 'SkWorker'
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self.daemon = True
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self.connection = connection
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self.query = mp.Queue()
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def run(self) -> None:
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state = SkWorkerState()
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while True:
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cmd: KCommand = self.query.get()
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try:
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if cmd.type == CmdType.SETUP:
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path = cmd.body
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state.setup(path)
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reply = KReply(CmdType.SUCCESS)
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self.connection.send(reply)
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elif cmd.type == CmdType.PING:
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state.slots = list(map(register_dev, DevModel.select()))
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reply = KReply(CmdType.PING, body=state.slots)
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self.connection.send(reply)
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elif cmd.type == CmdType.READ:
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name = cmd.body.pop('name')
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remote = cmd.body.get('remote', True)
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force = cmd.body.get('force', False)
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if force:
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value = state.force_flag.get(name)
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else:
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value = state.read(name, remote=remote)
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reply = KReply(CmdType.SUCCESS, body=value)
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self.connection.send(reply)
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elif cmd.type == CmdType.WRITE:
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force = cmd.body.get('force', False)
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name = cmd.body.pop('name')
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value = cmd.body.pop('value')
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if force and value == '':
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if name in state.force_flag:
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state.force_flag.pop(name)
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else:
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value = state.write(name, value, remote=True)
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if force:
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state.force_flag[name] = value
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reply = KReply(CmdType.SUCCESS, body=value)
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self.connection.send(reply)
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except SkError as e:
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reply = KReply(CmdType.ERROR, body=e)
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self.connection.send(reply)
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