skywalking/agent/protocol/__init__.py

#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

from abc import ABC
from queue import Queue


class Protocol(ABC):
    def fork_before(self):
        pass

    def fork_after_in_parent(self):
        pass

    def fork_after_in_child(self):
        pass

    def connected(self):
        return False

    def heartbeat(self):
        raise NotImplementedError()

    def report(self, queue: Queue, block: bool = True):
        raise NotImplementedError()

    def query_profile_commands(self):
        pass