| /* |
| * |
| * Copyright 2019, 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 <teeui/generic_messages.h> |
| |
| namespace teeui { |
| |
| std::tuple<ReadStream, uint32_t> readU32(ReadStream in) { |
| volatile const uint32_t* pos = reinterpret_cast<volatile const uint32_t*>(in.pos()); |
| in += sizeof(uint32_t); |
| if (!in) return {in, 0}; |
| return {in, *pos}; |
| } |
| |
| std::tuple<ReadStream, Command> readCommand(ReadStream in) { |
| return readCmd<Command>(in); |
| } |
| |
| Command peakCommand(ReadStream in) { |
| auto [_, cmd] = readCommand(in); |
| return cmd; |
| } |
| |
| std::tuple<ReadStream, Protocol> readProtocol(ReadStream in) { |
| return readCmd<Protocol, kProtoInvalid>(in); |
| } |
| |
| Protocol peakProtocol(ReadStream in) { |
| auto [_, proto] = readProtocol(in); |
| return proto; |
| } |
| |
| } // namespace teeui |