1 /* 2 * Copyright (C) 2024 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 #ifndef _PROCESS_RESOURCES_H 17 #define _PROCESS_RESOURCES_H 18 19 #include <atomic> 20 #include <memory> 21 22 namespace gfxstream { 23 24 class ProcessResources { 25 public: 26 // We only allow ProcessResources to be created on the heap, because the pointer to 27 // mSequenceNumber shouldn't change until ProcessResources is destroyed. create()28 static std::unique_ptr<ProcessResources> create() { 29 return std::unique_ptr<ProcessResources>(new ProcessResources()); 30 } 31 DISALLOW_COPY_ASSIGN_AND_MOVE(ProcessResources); 32 33 ~ProcessResources() = default; getSequenceNumberPtr()34 std::atomic<uint32_t>* getSequenceNumberPtr() const { return &mSequenceNumber; } 35 36 private: ProcessResources()37 ProcessResources() : mSequenceNumber(0) {} 38 mutable std::atomic<uint32_t> mSequenceNumber; 39 }; 40 41 } // namespace gfxstream 42 #endif 43