1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include "utils.h" 20 21 namespace android { 22 namespace lshal { 23 24 class Lshal; 25 26 // Base class for all *Commands 27 class Command { 28 public: Command(Lshal & lshal)29 explicit Command(Lshal& lshal) : mLshal(lshal) {} 30 virtual ~Command() = default; 31 // Expect optind to be set by Lshal::main and points to the next argument 32 // to process. 33 virtual Status main(const Arg &arg) = 0; 34 35 virtual void usage() const = 0; 36 37 // e.g. "list" 38 virtual std::string getName() const = 0; 39 40 // e.g. "list HALs" 41 virtual std::string getSimpleDescription() const = 0; 42 43 protected: 44 Lshal& mLshal; 45 }; 46 47 48 } // namespace lshal 49 } // namespace android 50