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# Copyright 2021 The Pigweed Authors
#
# Licensed 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
#
# https://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.
"""Exceptions for RPC-related errors."""
from typing import Optional
from pw_status import Status
from pw_rpc.client import PendingRpc
class RpcTimeout(Exception):
def __init__(self, rpc: PendingRpc, timeout: Optional[float]):
super().__init__(
f'No response received for {rpc.method} after {timeout} s')
self.rpc = rpc
self.timeout = timeout
class RpcError(Exception):
def __init__(self, rpc: PendingRpc, status: Status):
"""Raised when there is an RPC-layer error."""
if status is Status.NOT_FOUND:
msg = ': the RPC server does not support this RPC'
elif status is Status.DATA_LOSS:
msg = ': an error occurred while decoding the RPC payload'
else:
msg = ''
super().__init__(f'{rpc.method} failed with error {status}{msg}')
self.rpc = rpc
self.status = status
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