1 /* 2 * Copyright (C) 2023 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 <cstdint> 20 #include <cstdlib> 21 22 #include <vector> 23 24 #include "common/libs/utils/cf_endian.h" 25 26 namespace cuttlefish { 27 28 class EventBuffer { 29 public: 30 EventBuffer(size_t num_events); 31 32 void AddEvent(uint16_t type, uint16_t code, int32_t value); 33 size()34 size_t size() const { return buffer_.size() * sizeof(virtio_input_event); } 35 data()36 const void* data() const { return buffer_.data(); } 37 38 private: 39 struct virtio_input_event { 40 Le16 type; 41 Le16 code; 42 Le32 value; 43 }; 44 45 std::vector<virtio_input_event> buffer_; 46 }; 47 48 } // namespace cuttlefish 49