1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef KV_STORE_THREAD_POOL_H 17 #define KV_STORE_THREAD_POOL_H 18 19 #include <memory> 20 #include "kv_store_task.h" 21 22 namespace OHOS { 23 namespace DistributedKv { 24 class KvStoreThreadPool { 25 public: 26 KvStoreThreadPool(KvStoreThreadPool &&) = delete; 27 KvStoreThreadPool(const KvStoreThreadPool &) = delete; 28 KvStoreThreadPool &operator=(KvStoreThreadPool &&) = delete; 29 KvStoreThreadPool &operator=(const KvStoreThreadPool &) = delete; ~KvStoreThreadPool()30 KVSTORE_API virtual ~KvStoreThreadPool() {}; 31 32 KVSTORE_API static std::shared_ptr<KvStoreThreadPool> GetPool(int poolSize, bool startImmediately = false); 33 KVSTORE_API virtual void Stop() = 0; 34 KVSTORE_API virtual bool AddTask(KvStoreTask &&task) = 0; 35 KVSTORE_API static constexpr int MAX_POOL_SIZE = 64; // the max thread pool size 36 KVSTORE_API static constexpr int DEFAULT_POOL_SIZE = 8; // the default thread pool size 37 protected: 38 KvStoreThreadPool() = default; 39 }; 40 } // namespace DistributedKv 41 } // namespace OHOS 42 43 #endif // KV_STORE_THREAD_POOL_H 44