| /* |
| * Copyright (C) 2020 The Android Open Source Project |
| * |
| * 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 |
| * |
| * 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. |
| */ |
| |
| #include <libprotocan/Checksum.h> |
| |
| namespace android::hardware::automotive::protocan { |
| |
| Checksum::Checksum(Signal signal, formula f) : mSignal(signal), mFormula(f) {} |
| |
| void Checksum::update(can::V1_0::CanMessage& msg) const { |
| mSignal.set(msg, 0); |
| mSignal.set(msg, mFormula(msg) % (mSignal.maxValue + 1)); |
| } |
| |
| } // namespace android::hardware::automotive::protocan |